USER EQUIPMENT, NETWORK EQUIPMENT, AND METHODS FOR FREE CONCESSION TRANSMISSIONS

专利摘要:
methods and systems are provided for signaling for semi-static configuration in concession-free uplink transmissions. radio resource control (rrc) signaling is used to provide information from a base station to a user equipment (eu) that configures the concession free broadcast resource to be used by the eu. in some implementations, rrc signaling can be used in conjunction with system information that is transmitted to all users and / or downlink control (dci) information that the eu needs for later access to rrc signaling. in some implementations, the dci includes an activation or deactivation indicator that the eu monitors to determine when the eu is allowed to transmit to bs or should stop transmitting. implementations allow concession-free transmission resources to be configured on an individual user basis and on a group basis.
公开号:BR112019014146A2
申请号:R112019014146-4
申请日:2018-01-09
公开日:2020-02-11
发明作者:Cao Yu；Zhang Liqing；Ma Jianglei
申请人:Huawei Technologies Co., Ltd.；
IPC主号:

专利说明:

“USER EQUIPMENT, NETWORK EQUIPMENT, AND METHODS FOR FREE CONCESSION TRANSMISSIONS”
FIELD OF TECHNIQUE [001] The present disclosure relates, in general, to wireless communications, and in particular aspects, to methods and systems for uplink transmissions free of concession.
BACKGROUND [002] In some wireless communication systems, user equipment (UE) communicates wirelessly with a base station to send data to the base station or receive data from the base station. A wireless communication from a UE to a base station is called an uplink communication. A wireless communication from a base station to a UE is called a downlink communication.
[003] The resources are required to carry out uplink and downlink communications. For example, a UE can wirelessly transmit data to a base station on an uplink transmission at a particular frequency or during a particular slot in time. The frequency and time slot used are examples of features.
[004] In some wireless communication systems, if a UE wants to transmit data to a base station, the UE requests uplink resources from the base station. The base station grants the uplink resources, and then the UE sends the uplink transmission using the granted uplink resources. An example of uplink features that can be provided by the base station is a set of time-frequency locations in an uplink orthogonal frequency division (OFDMA) multiple access frame.
[005] The base station is aware of the identity of the UE that sends the uplink transmission using the granted uplink resources, since the base station specifically granted those uplink resources to that UE. However, there may be schemes in which the base station does not know which UE, if any, will send an uplink transmission using certain uplink resources. An example is a transmission scheme for
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2/134 uplink free of concession in which the UEs can send uplink transmissions using certain uplink resources shared by the UEs, without specifically requesting the use of the resources and without being specifically granted the resources by the base station. The base station will therefore not know which EU, if any, will send a concession-free uplink transmission using resources.
[006] In some cases, when a particular UE sends a concession-free uplink transmission, the base station may not be able to decode the data on the uplink transmission.
SUMMARY [007] The technical advantages are achieved, in general, through aspects of this disclosure that describe a system and method for resource allocation and unified reference signal (RS) for free uplink concession (UL) transmissions.
[008] In accordance with an aspect of the present disclosure, a method for a user equipment (UE) for concession-free transmissions is provided, the method of which involves receiving, from a network equipment, a signaling of resource control from radio (RRC) indicating an uplink free transmission resource configuration for uplink data transmission and retransmission, the uplink free transmission resource configuration including a time resource, a frequency resource, reference signal resource information (RS) and an interval between two concession-free transmission opportunities. The method additionally involves obtaining transmission resources free of uplink concession based on RRC signaling, without receiving downlink control (DCI) information for an initial transmission of uplink data. The method additionally involves transmitting the uplink data to the network equipment using the uplink concession free transmission resources.
[009] In some ways, the method additionally involves
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3/134 receive, from the network equipment, a DCI message indicating a lease for a retransmission of the uplink data and retransmit, to the network equipment, the uplink data based on the lease.
[0010] In some respects, the RRC signaling additionally includes a concession-free EU identifier and the method additionally involves decoding the DCI message using the concession-free EU identifier [0011] In some respects , the DCI message comprises a new data indicator field set to a value of 1 which indicates the concession for the uplink data retransmission.
[0012] In some aspects, the RRC signaling additionally includes a number of repetitions of transmission of the uplink data.
[0013] In some respects, the RRC signaling additionally includes a number of configured HARQ processes.
[0014] In some aspects, the RRC signaling additionally includes at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[0015] In some respects, the method additionally involves relaying the uplink data using the free uplink grant transmission resources if or when no DCI message, which indicates an uplink grant for a retransmission uplink data, has been received.
[0016] In some aspects, the method additionally involves relaying the uplink data using the free uplink transmission resources until the number of transmission repetitions is reached.
[0017] In accordance with one aspect of the present disclosure, user equipment (UE) configured for concession-free transmissions is provided, the UE including a processor and media
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4/134 computer readable storage. The computer-readable storage media stores programming instructions for execution through the processor. The schedule includes instructions for receiving radio resource control (RRC) signaling from network equipment from a network device, where the RRC signaling indicates an uplink grant-free transmission resource configuration for the uplink data transmission and retransmission, and wherein the uplink concession free transmission resource configuration includes a time resource, a frequency resource, reference signal (RS) resource information and an interval between two concession-free transmission opportunities. The schedule includes instructions for obtaining free uplink grant transmission resources based on RRC signaling, without receiving downlink control (DCI) information for an initial uplink data transmission. The schedule includes instructions for transmitting uplink data to network equipment using uplink concession free transmission resources.
[0018] In some respects, the computer-readable media has stored in it additional instructions executable on a computer that, when executed by the processor, cause the UE to receive, from the network equipment, a first DCI message indicating an uplink lease for a retransmission of the uplink data and retransmit, to the network equipment, the uplink data based on the lease.
[0019] In some respects, the RRC signaling additionally includes a concession-free UE identifier and the computer-readable media has stored in it, computer executable instructions that, when executed by the processor, cause the UE: decode the DCI message using the concession-free EU identifier.
[0020] In some aspects, the DCI message comprises a new data indicator field set to a value of 1 that indicates the concession for the uplink data retransmission.
[0021] In some respects, RRC signaling includes,
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5/134 in addition, a number of transmission repetitions of the uplink data.
[0022] In some respects, the RRC signaling additionally includes a number of configured HARQ processes.
[0023] In some respects, the RRC signaling additionally includes at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[0024] In some respects, the computer-readable media has stored in it, instructions executable on a computer that, when executed by the processor, cause the UE to retransmit the uplink data using the free transmission resources of concession uplink if or when no DCI message, which indicates an uplink lease for a uplink data retransmission, has been received.
[0025] In some respects, the computer-readable media has stored in it, instructions executable on a computer that, when executed by the processor, cause the UE to retransmit the uplink data using the free transmission resources uplink until the number of transmission repetitions is reached.
[0026] In accordance with one aspect of the present disclosure, a method for network equipment for concession-free transmissions is provided, the method of which involves transmitting, to a user equipment (UE), a signaling of resource control from radio (RRC) indicating an uplink free transmission resource configuration for uplink data transmission and retransmission, wherein the uplink free transmission resource configuration includes at least one time resource , a frequency resource, reference signal resource information (RS) and an interval between two concession-free transmission opportunities. The method also involves receiving uplink data transmitted from the UE using resources
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6/134 uplink concession free transmission allocated based on RRC signaling, without the network equipment transmitting downlink control (DCI) information for an initial transmission of uplink data.
[0027] In some aspects, the method additionally involves transmitting a DCI message to the UE indicating an uplink grant for a uplink data retransmission; and receiving, from the UE, the uplink data retransmitted based on the concession.
[0028] In some respects, the RRC signaling additionally comprises a concession-free EU identifier.
[0029] In some respects, the DCI message comprises a new data indicator field set to a value of 1 that indicates the uplink grant for uplink data retransmission.
[0030] In some aspects, the RRC signaling additionally includes a number of repetitions of transmission of the uplink data.
[0031] In some respects, the RRC signaling additionally includes a number of configured HARQ processes.
[0032] In some aspects, the RRC signaling additionally includes at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[0033] In some aspects, the method additionally involves receiving a retransmission of the uplink data using the free uplink concession resources.
[0034] In some respects, the method additionally involves receiving a retransmission of uplink data with the use of free uplink concession resources until the number of transmission repetitions is reached.
[0035] In accordance with one aspect of the present disclosure, it is
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7/134 network equipment configured for concession-free transmissions is provided, and the network equipment includes a processor and computer-readable storage media that stores programming instructions for execution through the processor. The schedule includes instructions for transmitting, to a user device (UE), a radio resource control (RRC) signaling that indicates an uplink grant free transmission resource configuration for the transmission and retransmission of link data uplink, in which the uplink concession free transmission resource configuration includes a time resource, a frequency resource, reference signal (RS) resource information and an interval between two concession free transmission opportunities. The schedule also includes instructions for receiving uplink data transmitted from the UE using the uplink concession free transmission resources allocated based on RRC signaling, without the network equipment transmitting downlink control information. (DCI) for an initial transmission of the uplink data.
[0036] In some respects, computer-readable media that have, stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment to transmit, to the UE, a DCI message that indicates a granting a retransmission of the uplink data; and receive, from the UE, the uplink data retransmitted based on the concession.
[0037] In some respects, the RRC signaling additionally comprises a concession-free EU identifier.
[0038] In some respects, the DCI message comprises a new data indicator field set to a value of 1 that indicates the concession for the uplink data retransmission.
[0039] In some respects, the RRC signaling additionally includes a number of repetitions of transmission of the uplink data.
[0040] In some respects, the RRC signaling additionally includes a number of configured HARQ processes.
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8/134 [0041] In some aspects, the RRC signaling additionally includes at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[0042] In some aspects, the computer-readable media has stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment to receive a retransmission of the uplink data using the transmission resources. free from uplink concession.
[0043] In some respects, the computer-readable media that has, stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment to receive a retransmission of the uplink data with the use of resources. uplink concession free transmission times until the number of transmission repetitions is reached.
[0044] In accordance with an aspect of the present disclosure, a method for user equipment for concession-free transmissions is provided, the method including receiving, from a network equipment, a radio resource control signaling (RRC) ) indicating an uplink concession free transmission resource configuration, the configuration including a number of K transmission repeats. The method additionally includes receiving, from the network equipment, a first information message from downlink control (DCI), wherein the DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession data transmissions and reference signal (RS) information indicative of an RS allocated to the UE. The method additionally includes obtaining uplink free transmission resources based on the uplink free transmission resource configuration indicated in the RRC signaling and DCI message. The method additionally includes transmitting uplink data to the network equipment using free transmission resources
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9/134 uplink.
[0045] In some respects, the method additionally involves receiving, from the network equipment, a second DCI message, in which the second DCI message includes a deactivation indication that indicates that the UE is not allowed to perform uplink concession free data transmissions, and interrupt uplink data transmissions with the use of uplink concession free transmission resources.
[0046] In some respects, the DCI message additionally includes resource block information and modulation and coding scheme (MCS) information.
[0047] In some respects, the method additionally involves receiving, from the network equipment, a third DCI message from the network equipment, wherein the third DCI message indicates an uplink grant for a retransmission of the link data ascending.
[0048] The method additionally involves RRC signaling that includes at least one of an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and a free EU identifier concession.
[0049] In accordance with one aspect of the present disclosure, user equipment (UE) configured for concession-free transmissions is provided, the UE including a processor and a computer-readable storage medium that stores programming instructions for execution through the processor. The schedule includes instructions for receiving radio resource control (RRC) signaling from a network device that indicates an uplink concession free transmission resource configuration, the configuration including a number of transmission repetitions. K. The schedule includes instructions for receiving, from the network equipment, a first downlink control information (DCI) message, where the DCI message includes an activation indication that indicates that the UE has
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10/134 permission to perform data transmission free of uplink concession and reference signal information (RS) indicative of an RS allocated to the UE. The schedule includes instructions for obtaining uplink free transmission resources based on the uplink free transmission resource configuration indicated in the RRC signaling and DCI message. The schedule includes instructions for transmitting uplink data to the network equipment using the uplink concession free transmission resources.
[0050] In some aspects, computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the UE to receive, from the network equipment, a second DCI message, in which the second DCI message includes a deactivation indication that indicates that the UE is not allowed to perform uplink free data transmissions, and interrupt uplink data transmissions using the uplink free transmission resources .
[0051] In some respects, the DCI message additionally includes resource block information and modulation and coding scheme (MCS) information.
[0052] In some aspects, the computer-readable media has stored in it, instructions executable on a computer that, when executed by the processor, cause the UE to receive, from the network equipment, a third DCI message from the network equipment, wherein the third DCI message indicates an uplink lease for a retransmission of uplink data.
[0053] In some respects, RRC signaling includes at least one of an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and a concession-free UE identifier.
[0054] In accordance with one aspect of the present disclosure, a method for network equipment for concession-free transmissions is provided, the method including transmitting to a
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11/134 user (UE), a radio resource control (RRC) signaling that indicates an uplink grant free transmission resource configuration, the configuration including a number of K transmission repetitions. The method includes additionally transmitting to the UE a first downlink control information (DCI) message, wherein the DCI message includes an activation indication that indicates that the UE is allowed to perform link-free data transmissions ascending and reference signal (RS) information indicative of an RS allocated to the UE. The method additionally includes receiving uplink data transmitted from the UE using the uplink concession free transmission resources allocated based on the RRC signaling and the DCI message.
[0055] In some respects, the method additionally involves transmitting a second DCI message to the UE, in which the second DCI message includes a deactivation indication that indicates that the UE is not allowed to perform data transmissions free from uplink concession.
[0056] In some respects, the method additionally includes the DCI message which additionally includes resource block information and modulation and coding scheme (MCS) information.
[0057] In some respects, the method additionally involves transmitting a third DCI message from the network equipment to the UE, wherein the third DCI message indicates an uplink grant for a uplink data retransmission .
[0058] In some respects, the method additionally includes the RRC signaling which includes at least one of the interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and one concession-free EU identifier.
[0059] In accordance with an aspect of the present disclosure, network equipment configured for concession-free transmissions is provided, the network equipment including a processor and a computer-readable storage medium that stores instruction instructions.
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12/134 programming to run through the processor. The schedule includes instructions for transmitting, to a user device (UE), a radio resource control (RRC) signal that indicates a uplink concession free transmission resource configuration, the configuration including a number of transmission repeats K. The schedule also includes instructions for transmitting a first downlink control information (DCI) message to the UE, where the DCI message includes an activation indication that indicates that the UE is allowed to perform uplink concession free data transmissions and reference signal (RS) information indicative of an RS allocated to the UE. The schedule also includes instructions for receiving uplink data transmitted from the UE using the uplink concession free transmission resources allocated based on the RRC signaling and the DCI message.
[0060] In some respects, the computer-readable media has stored in the same executable instructions on a computer that, when executed by the processor, cause the network equipment to transmit to the UE a second DCI message, in which the second DCI message includes a deactivation indication that indicates that the UE is not permitted to perform uplink grant free data transmissions.
[0061] In some respects, the DCI message additionally comprises resource block information and modulation and coding scheme (MCS) information.
[0062] In some aspects, the computer-readable media has stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment to transmit, to the UE, a third DCI message from the equipment network, where the third DCI message indicates an uplink lease for a retransmission of uplink data.
[0063] In some respects, RRC signaling includes at least one of an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and a concession-free UE identifier.
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13/134
BRIEF DESCRIPTION OF THE DRAWINGS [0064] For a more complete understanding of the present disclosure, and its advantages, reference is now made to the following description obtained in conjunction with the accompanying drawings, in which:
[0065] Figure 1 illustrates a network for communicating data;
[0066] Figure 2A illustrates a diagram of an example electronic device (ED), such as user equipment (UE);
[0067] Figure 2B illustrates a diagram of an example base station;
[0068] Figure 2C illustrates a network for communicating data;
[0069] Figures 3A to 3K illustrate eleven flowcharts of eleven examples of methods for concession-free transmissions, according to one aspect of the disclosure;
[0070] Figure 4 illustrates a flowchart of an exemplary concession-free transmission scheme;
[0071] Figures 5A to 5D illustrate examples of resource allocation patterns, according to aspects of the disclosure;
[0072] Figure 5E illustrates an exemplary reference signal (RS) space expansion scheme, according to an aspect of the disclosure;
[0073] Figure 5F illustrates an exemplary fixed resource grouping pattern, according to an aspect of the disclosure;
[0074] Figure 5G illustrates an exemplary semi-static update of a concession-free resource, according to an aspect of the disclosure;
[0075] Figure 6A illustrates examples of message formats, according to aspects of the disclosure;
[0076] Figure 6B illustrates additional examples of message formats, according to an aspect of the disclosure;
[0077] Figure 7 illustrates a diagram of a computing system, according to an aspect of the disclosure; and [0078] Figure 8 illustrates an exemplary concession free transmission resource assigned to multiple UEs, according to one aspect
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14/134 of the revelation; and [0079] Figure 9 illustrates an exemplary concession-free transmission resource assigned to multiple UEs in which the UEs are grouped in a consistent manner, according to one aspect of the disclosure.
[0080] The corresponding numerals and symbols in the different figures refer, in general, to corresponding parts, unless otherwise indicated. The figures are produced to clearly illustrate the relevant aspects of the modalities and are not necessarily produced in scale.
DETAILED DESCRIPTION OF ILLUSTRATIVE MODALITIES [0081] The structure, manufacture and use of the present modalities are discussed in detail below. It should be noted, however, that the present disclosure provides many applicable inventive aspects that can be incorporated in a wide variety of specific contexts. The specific modalities discussed are only illustrations of specific ways of producing and using the disclosure, and do not limit the scope of the disclosure.
[0082] In this disclosure, concession-free transmissions refer to data transmissions that are performed without communicating concession-based signaling on a dynamic control channel, such as a Physical Uplink Control Channel (PUCCH) or a Physical Channel Downlink Control (PDCCH). Concession-free transmissions may include uplink or downlink transmissions, and should be interpreted as such, unless otherwise specified.
[0083] Figure 1 illustrates an exemplary communication system 100. In general, system 100 allows multiple wired or wireless user devices to transmit and receive data and other content. System 100 can deploy one or more channel access methods, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA ) or single carrier FDMA (SC-FDMA).
[0084] In this example, the communication system 100 includes electronic devices (EDs) 110a to 110c, radio access networks (RANs) 120a to 120b, a main network 130, a public switched telephone network
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15/134 (PSTN) 140, the Internet 150 and other networks 160. Although certain quantities of these components or elements are shown in Figure 1, any quantity of these components or elements can be included in system 100.
[0085] DIs 110a to 110c are configured to operate or communicate on system 100. For example, DIs 110a to 110c are configured to transmit or receive via wired or wireless communication channels. Each ED 110a through 110c represents any suitable end user device and may include such devices (or may be named) as a user device / device (UE), wireless transmit / receive unit (WTRU), mobile station, fixed or mobile subscriber, cell phone, personal digital assistant (PDA), smart phone, laptop, computer, touchpad, wireless sensor, or consumer electronic device.
[0086] RANs 120a and 120b in this document include base stations 170a and 170b, respectively. Each base station 170a and 170b is configured to wirelessly interface with one or more of the EDs 110a to 110c to allow access to a backhaul network, where the backhaul network, in Figure 1, comprises the main network 130, PSTN 140, Internet 150 or other networks 160. As an example, the backhaul network may comprise a 5G communication system network or a system network of the next future evolution. For example, base stations 170a and 170b may include (or be) one or more among several well-known devices, such as a base transceiver station (BTS), a Node-B (NodeB), an evolved NodeB (eNodeB) , a home NodeB, a home eNodeB, a site controller, an access point (AP) or a wireless router. EDs 110a and 110c are configured to interface and communicate with the internet 150 and can access main network 130, PSTN 140 or other networks 160.
[0087] In the embodiment shown in Figure 1, base station 170a forms part of RAN 120a, which can include other base stations, elements or devices. In addition, base station 170b forms part of RAN 120b, which may include other base stations, elements or devices. Each base station 170a and 170b operates to transmit or receive wireless signals
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16/134 within a particular area or geographic region, sometimes called a “cell”. In some embodiments, multiple input multiple output (MIMO) technology can be employed with multiple transceivers for each cell.
[0088] The base stations 170a and 170b communicate with one or more of the EDs 110a to 110c on one or more overhead interfaces 190 using wireless communication links. Aerial interfaces 190 can use any suitable radio access technology.
[0089] It is contemplated that the system 100 can use multiple channel access functionality, including such schemes, as described above. In particular modalities, base stations and EDs deploy LTE, LTE-A or LTE-B. Of course, other multiple access schemes and wireless protocols can be used.
[0090] RANs 120a and 120b are in communication with main network 130 to provide EDs 110a to 110c with voice, data, application, Voice over Internet Protocol (VoIP) or other services. Understandably, RANs 120a and 120b or main network 130 may be in direct or indirect communication with one or more other RANs (not shown). Main network 130 can also serve as gateway access to other networks (such as PSTN 140, Internet 150 and other networks 160). In addition, some or all EDs 110a through 110c may include functionality to communicate with different wireless networks over different wireless links using different wireless protocols or technologies. Instead of wireless communication (or beyond), EDs 110a through 110c can communicate through wired communication channels with a service provider or switch (not shown), and with the internet 150.
[0091] Although Figure 1 illustrates an example of a communication system, several changes can be made to Figure 1. For example, communication system 100 can include any number of EDs, base stations, networks or other components in any proper configuration.
[0092] Figures 2A and 2B illustrate exemplary devices that can implement the methods and teachings, according to this disclosure. In particular, Figure 2A illustrates an exemplary ED 110 that corresponds to
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17/134
110a, 110b, 110c, and Figure 2B illustrates an exemplary base station 170 corresponding to 170a or 170b. These components can be used in system 100 or any other suitable system.
[0093] As shown in Figure 2A, ED 110 includes at least one processing unit 200. Processing unit 200 implements several processing operations of ED 110. For example, processing unit 200 can perform signal encoding, processing data, power control, input / output processing or any other functionality that allows the ED 110 to operate on system 100. Processing unit 200 also supports the methods and teachings described in more detail above and below. Each processing unit 200 includes any suitable processing or computing device configured to perform one or more operations. Each processing unit 200 can include, for example, a microprocessor, microcontroller, digital signal processor, field programmable port arrangement or application specific integrated circuit.
[0094] The ED 110 also includes at least one transceiver 202. Transceiver 202 is configured to modulate data or other content for transmission via at least one antenna 204 or NIC (Network Interface Controller). Transceiver 202 is also configured to demodulate data or other content received via at least one antenna 204. Each transceiver 202 includes any structure suitable for generating signals for wired or wireless transmission or processing received or wired signals. Each antenna 204 includes any structure suitable for transmitting or receiving wired or wireless signals. One or multiple transceivers 202 can be used on ED 110, and one or multiple antennas 204 can be used on ED 110. Although shown as a single functional unit, a transceiver 202 can also be deployed using at least one transmitter and at least least one separate receiver.
[0095] ED 110 additionally includes one or more input / output devices 206 or interfaces (such as a wired internet interface 150). Input / output devices 206 facilitate interaction with a user or other devices (network communications) on the network. Each device
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18/134 input / output 206 includes any structure suitable for providing information to or receiving / providing information from a user, such as a speaker, microphone, numeric keypad, keyboard, display or touch screen, including communications interface network.
[0096] In addition, ED 110 includes at least one 208 memory. Memory 208 stores instructions and data used, generated or collected by ED 110. For example, memory 208 can store software or firmware instructions executed by the unit (or processing unit 200 and data used to reduce or eliminate interference in received signals. Each memory 208 includes any suitable volatile or non-volatile storage and recovery device (or devices). Any suitable type of memory can be used, such as random access memory (RAM), read-only memory (ROM), hard disk, optical disk, subscriber identity module (SIM) card, memory card, memory card secure digital memory (SD) and the like.
[0097] As shown in Figure 2B, base station 170 includes at least one processing unit 250, at least one transmitter 252, at least one receiver 254, one or more antennas 256, at least one memory 258 and one or more input / output interfaces or devices 266. A programmer, who will be understood by a person skilled in the art, can also be coupled to processing unit 250. The programmer can be included within or operated separately from base station 170. The Processing 250 implements various processing operations for base station 170, such as signal encoding, data processing, power control, input / output processing or any other functionality. The processing unit 250 can also support the methods and teachings described in more detail above. Each processing unit 250 includes any suitable processing or computing device configured to perform one or more operations. Each processing unit 250 can include, for example, a microprocessor, microcontroller, digital signal processor, field programmable port arrangement or application specific integrated circuit.
[0098] Each 252 transmitter includes any structure suitable for
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19/134 generate signals for wired or wireless transmission to one or more EDs or other devices. Each receiver 254 includes any structure suitable for processing signals received wired or wirelessly from one or more EDs or other devices. Although shown as a separate transmitter 252 and receiver 254, these two devices can be combined as a transceiver. Each 256 antenna includes any structure suitable for transmitting or receiving wired or wireless signals. Although a common antenna 256 is shown in this document as being coupled to transmitter 252, one or more antennas 256 can be coupled to receiver 252, which allows separate antennas 256 to be coupled to the transmitter and receiver as separate components. Each 258 memory includes any suitable volatile or non-volatile storage and recovery device (or devices). Each 266 input / output device facilitates interaction with a user or other devices (network communications) on the network. Each 266 input / output device includes any suitable structure for providing information to or receiving / providing information from a user, including network interface communications.
[0099] Figure 2C illustrates an exemplary network 280 for communicating data. Network 280 comprises a Base Station (BS) 283 having a coverage area 281, a plurality of mobile devices 282 (282a, 282b) and a backhaul network 284. As shown, base station 283 establishes uplink connections (long dashed line) or downlink (short dashed line) with mobile devices 282, which serve to carry data from mobile devices 282 to BS 283 and vice versa. Data ported via uplink / downlink connections can include data communicated between mobile devices 282, as well as data communicated to / from a remote end device (not shown) via the backhaul network 284.
[00100] Network 280 can implement a concession-free uplink transmission. Concession-free uplink transmissions are sometimes referred to as “no concession”, “free from programming” or “without programming” transmissions. Concession-free uplink transmission can also be referred to as “UL transmission without
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20/134 concession "," UL transmission without dynamic concession "," transmission without dynamic programming "," transmission using configured concession ". Sometimes, free concession resources configured in RRC without DCI signaling can be called a configured RRC concession or a type of configured concession. The concession-free resource configured using both RRC and DCI signaling can also be called a configured concession, a configured DCI concession or another type of configured concession. Concession-free uplink transmissions from different mobile devices can be transmitted using the same designated resources, as an example, contention transmission unit (CTU) access regions, in which case uplink transmissions Concession-free are contention-based transmissions. One or more base stations, for example, BS 283, can perform blind detection on concession-free uplink transmissions.
[00101] Concession-free uplink transmissions may be suitable for transmitting bursty traffic with small packets from mobile devices 282 to BS 283, or for transmitting data to BS 283 in real time or with low latency. Examples of applications in which a concession-free uplink transmission scheme can be used include: massive machine-type communication (m-MTC), ultra-reliable low-latency communications (URLLC), smart electrical meters, smart grid teleprotection and activation autonomous. However, concession-free uplink transmission schemes are not limited to the applications described above.
[00102] BS 283 can implement a concession-free uplink transmission scheme, and the contention transmission unit (CTU) access regions can be defined so that 282 mobile devices can compete and access link resources ascending without a request / grant mechanism. The concession-free uplink transmission scheme can be defined by the BS, or it can be defined in a wireless standard (for example, 3GPP). 282 mobile devices can be mapped to various CTU access regions to
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21/134 avoid collision (that is, when two or more mobile devices try to transmit data on the same uplink resource). However, if a collision occurs, 282 mobile devices can resolve the collisions using an asynchronous HARQ (hybrid auto-repeat request) method. BS 283 can blindly detect (that is, without explicit signaling) active mobile devices and decode incoming uplink transmissions.
[00103] Under this scheme, mobile devices 282 can send uplink transmissions without BS 283 allocating resources to request / grant mechanisms. Therefore, the total network overhead resources can be saved. In addition, this system can allow time savings during uplink by deviating from the request / concession scheme. Although only one BS 283 and two mobile devices
282 are illustrated in Figure 2C, a typical network may include multiple BSs, each of which encompasses transmissions from a variety of mobile devices in its geographic coverage area.
[00104] The 280 network uses several high-level signaling mechanisms to enable and configure concession-free transmissions. 282 mobile devices with the capacity for free concession transmissions can signal this capability to BS 283. This may allow BS
283 supports both concession-free and traditional signal / concession transmissions (for example, for older mobile device models) simultaneously. Relevant mobile devices can signal this capability, for example, through RRC (radio resource control) signaling defined in the 3GPP (third generation partnership project) standard. A new field can be added to the list of mobile device capabilities in RRC signaling to indicate whether the mobile device supports concession-free transmissions. Alternatively, one or more existing fields can be modified or inferred to indicate support free of concession.
[00105] BS 283 can also use high-level mechanisms (for example, a broadcast channel or a slow signaling channel) to notify mobile devices 282 of information necessary to enable and configure a concession-free transmission scheme. For example, BS
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283 can signal that it supports concession-free transmissions, a search space location (which defines a time-frequency resource) and access codes for CTU access regions, a maximum size of a subscription set (that is, the total number of signatures defined), a definition of a modulation and coding scheme (MCS), and the like. In addition, BS 283 can update this information from time to time using, for example, a slow signaling channel (for example, a signaling channel that occurs only in the order of hundreds of milliseconds instead of occurring at each time interval transmission (TTI)).
[00106] Concession-free resource information common to more than one mobile device can be predefined or defined in a broadcast channel or system information. An example of how system information can be transmitted by BS includes using System Information Blocks (SIB). System information may include, but is not limited to, concession-free frequency bands (start and end) of the concession-free frequency delimitation and the size of the concession-free partition.
[00107] The SIB may include, for example, fields in order to define the beginning of the concession free frequency transmission resource (GFfrequencyStart) and the end of the concession free frequency transmission resource (GFfrequencyFinish) in order to define a full concession free streaming feature for all mobile devices. However, there may be other ways to define the general concession free transmission feature available.
[00108] The SIB may include, for example, fields in order to define a concession-free CTU size, such as the CTU frequency size (GFCTUSizeFrquency) and the CTU time size (GFCTUSizeTime).
[00109] The fields above assume a resource allocation free of continuous concession. However, in some modalities, the concession-free resource may not be continuous and there may be other ways of defining FG resources. Any of the fields above can also be optional, as resources can be predefined.
[00110] Regarding the definition of the search space for the control channel (DCI) for mobile devices free of concession, the
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23/134 Downlink Control Information (DCI) search space location can be provided by an index of potential control channel elements (CCEs) in each subframe / TTI, for which the index can have a predefined relationship derived from the grant-free user equipment identifier (UE ID) (such as a GF_RNTI) or grant-free group ID (such as a group_RNTI) assigned to the UE. This method may be similar to the definition of PDCCH research space in Long Term Evolution (LTE).
[00111] Another way of defining the search space can be to explicitly signal the DCI search space locations. The format provided can be a time-frequency region, within which the concession-free UE (ie, a UE which is configured for concession-free operation) must search for all CCEs. This explicit signaling can be performed in radio resource control (RRC) signaling. This is similar to Enhanced PDCCH (ePDCCH) search space defined in LTE, for example, defined in ePDCCH_Config in RRC signaling.
[00112] The concession-free uplink scheme implemented by BS 283 can define CTU access regions to enable concession-free transmissions through mobile devices 120. A CTU is a basic resource, predefined by a network, for containment transmissions. Messages are transmitted using a multiple access (MA) feature. An MA resource is comprised of a physical MA resource (for example, a time-frequency block) and at least one MA subscription. The MA subscription may include (but is not limited to) at least one of the following: a codebook / codeword, a sequence, an interleaver or mapping pattern, a demodulation reference signal (for example, a reference for channel estimation), a preamble, a spatial dimension and a power dimension. The term “pilot” refers to a signal that includes at least one reference signal (RS). In some embodiments, the pilot may include the demodulation reference signal (DMRS), possibly in conjunction with a preamble guided by channel estimation or a preamble of random access channel (RACH similar to LTE).
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24/134 [00113] A CTU access region is a temperature-frequency region where contention transmission occurs. The concession free uplink transmission scheme can define multiple CTU access regions for a network, such as network 100 in Figure 1. The concession free uplink scheme can be defined by BS through signaling of high level (for example, through a broadcast channel) or can be predefined by a standard and deployed in UEs (for example, in an UE firmware). The regions can exist in one or more frequency bands (intra-band or inter-band) and can occupy the entire uplink transmission bandwidth or a portion of the total transmission bandwidth of BS 283 or a carrier supported by BS 283. A CTU access region that occupies only a portion of the bandwidth allows BS 283 to simultaneously support uplink transmissions under a traditional request / grant scheme (for example, for older mobile device models that do not support free transmissions grant). In addition, BS 283 can use unused CTUs for scheduled transmissions under a request / lease scheme, or BS 283 can adjust the size of CTU access regions if portions of the access regions are not used for a period of time. In addition, CTU access regions may periodically jump in frequency. BS 283 can signal these changes in size and frequency of CTU access region to mobile devices 282 through a slow signaling channel.
[00114] CTU access regions can be defined within a total available time-frequency region. Figures 5A to 5D show examples of 5 CTU regions defined within a time frame. CTU regions may not have equal sizes in terms of allocated time and frequency resources, as shown in Figure 5A. CTU regions can be indexed by a predefined pattern that is known to both BS and UEs within a time frame. For example, the 5 CTU regions, in Figure 5A, can be indexed as CTU 0 to 4, as shown in the first time interval (Time interval 1). CTU regions can also be partitioned into different resource sets, with each
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25/134 set represents, typically, a time interval and, within a resource, there may be multiple CTU regions that typically occupy different frequency bands. In this case, the CTU regions can be indexed by two-dimensional indexes, containing a time interval index and frequency location index. Time slots are often defined as a time unit interval, within which an UE can be provided with an opportunity or resource to have the ability to access concession-free mode. For example, CTU 0 to CTU 4 can be indexed by a time slot index 0 and a frequency location index 0, 1,2, 3, 4. CTUs that have the same frequency location index or slot time may not necessarily be aligned in the frequency domain or real physical time. However, the combination of a frequency location index and a time location index can uniquely determine the CTU index on the board, which corresponds to a predefined physical time and frequency location. For example, in Figure 5D, CTUs 0, 5, 10, and 15 have the same frequency location index 0, but their physical frequency location is different since CTU 0 and CTU 10 are in a physical frequency band f1 and CTU 5 and CTU 15 are in a physical frequency band fn. This has the advantage of providing frequency diversity gain through resource frequency hopping when two or more of these CTU regions are assigned to the same UE. For example, both CTU 0 and CTU 6 can be assigned to the same UE (denoted as UE 1). The UE 1 can perform a concession-free initial transmission of a packet at CTU 0 and a retransmission of the same packet at CTU 6. BS combines the signals received from UE 1 at CTU 0 and CTU 6 for decoding. Since CTU 0 and CTU 6 are located in different frequency bands, a gain in frequency diversity can be obtained to assist decoding compared to the case where CTU 0 and CTU 6 occupy the same frequency bands.
[00115] Some information of CTU access regions can also be signaled by BS. For example, CTU access regions can be dedicated frequency bands across the entire available bandwidth. In this case, the BS can indicate the beginning or the end of the bandwidth
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26/134 allocated for free concession access. In some scenarios, there are multiple predefined patterns of concession-free CTU access regions. BS can signal, to the concession-free UEs, the index of the predefined standard used. BS can also update information from the CTU region definition via signaling. Signaling and updating information about CTU regions can be carried through a broadcast channel or control channel.
[00116] With a concession-free transmission scheme, the receiver can perform activity detection, channel estimation and data decoding without prior knowledge of the transmitter pilots. Channel estimation can be performed based on pilot signals received from each mobile device. A set of consecutive values used for a pilot signal (for example, P1, P2, ... PN) is called a pilot sequence. Mobile devices can transmit, in general, one or more instances of a pilot sequence in a given uplink frame. For example, in LTE 4G, UEs generally transmit two pilot Zadoff-Chu strings in two OFDM symbols from an uplink subframe.
[00117] To mitigate interference between pilot sequence transmissions from different mobile devices, mobile devices can select pilot sequences from a cluster of pilot sequences. Pilot sequence selection can be random or based on a predefined selection rule. The clustering of pilot sequences can be generated by cyclically displacing a Zadoff-Chu sequence with the same root. The pilot sequences generated with the use of cyclic displacement of a Zadoff-Chu sequence with the same root are orthogonal to each other. Therefore, a pilot cluster generated in this way contains only orthogonal pilots. Orthogonal pilots are desirable since mutual interference between two pilot signals with the use of orthogonal pilots is minimal. However, the number of pilot sequences that are orthogonal to each other can be limited to a given pilot sequence length. More pilot sequences can be generated if different pilot sequences are allowed to not be orthogonal to each other. For example, more pilot sequences can be
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27/134 generated using different roots of Zadoff-Chu sequences. The pilot sequences generated in this way may not be orthogonal to each other, but still have low correlations.
[00118] The pilot collision refers to cases in which multiple mobile devices simultaneously access the same frequency-time-signature resources using the same pilot sequence. Pilot collisions can lead to irreparable results in a concession-free transmission scheme. This is due to the fact that BS 283 does not have the ability to decode mobile device transmission information in pilot collision scenarios since BS 283 does not have the ability to estimate individual mobile device channels using the same pilot. . For example, assuming that two mobile devices (mobile devices 282a and 282b) have the same pilot and their channels are h1 and h2, then BS 283 can estimate only one h1 + h2 quality channel for the two mobile devices 282a and 282b. Therefore, the information transmitted is unlikely to be decoded correctly. Several modalities can define a number of exclusive pilots depending on the number of mobile devices supported in the system. Since many mobile devices can access the same uplink channel on next generation networks, a universal RS and resource mapping scheme is desirable that supports different amounts of users in uplink concession free 5G broadcasts.
[00119] The modalities of this disclosure provide a universal RS and resource mapping scheme that supports different amounts of users in multiple access transmissions free of uplink concession. In some embodiments, a number of UEs are grouped into a first set of groups based on a predefined rule, and a time-frequency resource is assigned to each group of UEs for a first time interval. UEs can be regrouped, and the frequency-frequency resources reallocated for a second time interval. The results of the time-frequency resource allocation can be transmitted to the UEs. RS sequence assignment can be determined based on the results of time-frequency resource assignment to avoid RS
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28/134 same time-frequency features. An agglomeration of RS can be gradually expanded from orthogonal pilot sequences to non-orthogonal pilot sequences and then a random pilot sequence agglomeration when more and more UEs need to be supported.
[00120] System information disseminated to all UEs may include information that can be used by all concession-free UEs. For example, system information may include concession-free frequency bands (start and end) of the frequency-free delimitation in frequency and the size of the concession-free partition. However, such information may not necessarily be included in the system information and, if not, then it may be included in the RRC signaling. In some other modalities, such information from common free grant resources may be predefined. RRC signaling information is either EU-specific or group-specific and can include information, such as one or more among EU IDs, DCI search space, resource hop, RS hop, and modulation and coding scheme information (MCS). Additional control signaling can be transmitted to the UEs in DCI messages. DCIs can be used to send MCS information, first RS, first transmission resources, ACK, NACK or lease for transmission information or possibly additional updates for grant-free resource assignments.
[00121] In some embodiments, the concession-free UE is configured, semi-static, to combine 1) RRC signaling information and system information, 2) RRC signaling information and DCI information or 3 ) RRC signaling information, system information and DCI information, to determine an assigned transmission resource. Whether UE-specific information is provided in an index / sequence-based format or is completely defined may depend, for example, on the type of information that is defined in the system information and on whether or not complementary DCIs are available. .
[00122] The semi-static mode is defined in comparison to the dynamic option that is operating in each time slot. For example, semi-static
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29/134 can mean periodically over a given period of time, such as, for example, 200 or longer time slots. Semi-static can also mean setting up once and updating only occasionally.
[00123] In some modalities, a concession-free UE can configure resources in a semi-static way in which signaling similar to LTE paging or similar to Physical Broadcast Channel (PBCH) can be used for (re) signaling message resource configuration. For example, for a group of UEs with the same group ID, the group ID can be used to configure or update the grant-free resources for the group of UEs, using the DCI configuration indication and a message from RRC in the DL data channel (indicated in DCI), or using a signaling message similar to PBCH (multiplexing with other system information in Frequency Division Multiplexing (FDM) or Time Division Multiplexing (TDM)) . In addition, the UEs in the group can be associated with the same bundles or different bundles in a multiple bundle system and, in case the UEs are associated with different bundles, this signaling message similar to the pagination or similar to PBCH must be designed in a different way. to have the ability to support the group of UEs using different beams, for example, the same signaling message for (re-) configuration of semistatic resource can be transmitted through the different beams supported to the UEs.
[00124] In some modalities, for a UL transmission scheme without concession, at least (re-) semistatic resource configuration can be used, where the resource includes at least physical resource in frequency and time domain, and other resources / MA parameters, such as RS and code. The feature configuration signaling can be done, for example, as the semi-persistent LTE configuration. In addition, RS is transmitted in conjunction with data, in which the data transmission channel structure based on concession or LTE DMRS projects can be considered as a starting point and improvements can be used. For a UL transmission scheme with / without concession, K repetitions (K> = 1, that is, with the same or different redundancy (RV) versions or different MCSs) for the same transport block with pre-configured features can be used,
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30/134 where K is determined, for example, by the number of transmissions until the ACK is received, or a pre-configured or fixed number. In some embodiments, the UE resource jump in transmissions can be configured.
[00125] In other modalities, the UE can start transmitting data using concession-based transmissions one or more times through programming request (SR) and DCI signaling and then switch to concession-free transmissions through of the resource (s) once data has arrived without SR signaling, in which the UE's concession-free resource (s) can be configured through RRC signaling, for example, at the initial UE access and subsequently updated semi-static. This can be beneficial when the arrival package size is small. This can reduce signaling overhead as well as latency.
[00126] In other modalities, the UE can be configured in a semi-static way, free of concession resources and start transmitting initial data without concession. The UE can then begin to constantly monitor DCI signaling from the base station. If a programming lease is received, the UE can dynamically switch to grant-based transmission. If there is no dynamic lease, such as a DCI signaling, received after a certain period of time after transmitting the data in a concession free mode, the UE can continue to use concession free transmissions for data arrivals.
Use of RRC Signaling only for Assignment of Free Concession Resources [00127] Figure 3A illustrates a modality for free uplink concession (UL) transmissions with the use of Radio Resource Control (RRC) information without a UE has to check for Downlink Control Information (DCI) before initial data transmission. The concession-free UE can still check ACK / NACK feedback either through a dedicated ACK / NACK channel, such as HARQ Physical Indication Channel (PHICH) or DCI.
[00128] RRC signaling is used to signal UE-specific or group-specific transmission resource or reference signaling configuration.
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31/134 [00129] Regarding UE-specific information, RRC signaling can be used to notify the grant-free UE about information relevant to grant-free transmission, such as, but not limited to, EU ID, space DCI research, concession-free transmission resources, SR resources and other relevant information that may include, for example, MCS.
[00130] The RRC signaling may include a concession-free ID field (such as GF-RNTI) and one or more configuration fields to configure for UL (gf-ConfigUL) or to configure for downlink (DL) (gf -ConfigDL).
[00131] The fields in the UL configuration signaling may include, but are not limited to, the following examples.
[00132] A concession free frame interval UL field that defines the periodicity of the resource jump pattern in terms of a number of subframes. It can use frame length, in which case the field can be optional (use frame length defined for the system by default).
[00133] A concession-free programming interval UL field that defines the interval between two concession-free transmission opportunities. In some deployments, the field pattern is 1 if not specified. The interval can be the time interval between two free concession resources, which is sometimes called the periodicity of the free concession resource.
[00134] There may also be fields for parameters related to power control that can serve a purpose similar to that used for LTE semi-persistent programming (SPS).
[00135] A CTU size frequency field that defines the number of resource blocks (RB) used by CTU in frequency domain or CTU region block size. In some modalities, the indication of frequency domain of the free concession resource may indicate the resource block index (physical resource block index or virtual resource block index). The resource block index can also be indicated using the initial or final RB index and the number of RBs. In some deployments, the
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32/134 time domain size can be standardized to a subframe or TTI, so only frequency domain size is required. The field is not necessary if it is defined in SIB or if there is signaling of complementary DCI. The time domain size of the resource (for example, TTI) can also be defined in RRC, for example, a slot, a minislot, multiple slots, an OFDM symbol or multiple OFDM symbols. There may be another field that defines the time domain location of grant-free resources. For example, there may be a deviation value in addition to the periodicity signaled in the RRC signaling. The deviation value indicates the time location of a free concession resource, for example, the deviation value can indicate the time location (for example, a slot index) of the free concession resource in relation to a frame number system (SFN) = 0. In some modalities, the deviation may not need to be signaled, it may have a default value, for example, in slot 0.
[00136] A resource hop pattern field to define the resource hop pattern. In some embodiments, the resource jump pattern field is defined by a sequence of frequency location indices in each frame and in each time interval with a time unit equal to a UL value of the concession-free programming interval. In some embodiments, the resource hop pattern field is defined as a sequence of frequency location indices in each frame in each time interval in general. The time interval can be a TTI, a slot, a time slot, a subframe, a minislot, an OFDM symbol, a number of OFDM symbols, or any time unit. The time interval can also be the time location of the free concession resources, the location of free concession resources can be separated by the configured periodicity of the resource. For example, the resource hop pattern can be defined as a frequency partition or subband index in each slot within a frame or within a resource hop pattern periodicity. In some embodiments, the resource jump pattern field is defined by a sequence of CTU indices at each time interval in each frame. A resource jump pattern can be provided to the concession-free UE in the form of any one of 1) a single UE index defined at
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33/134 from a predefined resource assignment rule, 2) a resource jump index sequence that indicates the frequency index for each time interval, or 3) any implicit or explicit signaling of actual physical frequency resources that can be used in each time slot. In this document, the resource jump pattern also includes the indication of the time-frequency resource of the concession-free resources.
[00137] An RS jump sequence field to define the RS jump sequence. The RS jump sequence field can include an RS index to be used in frame n. If the RS changes at each time interval, the field can include a sequence of indices at each time interval. The RS jump sequence may not be necessary if complementary DCIs are available. An RS jump sequence can be provided to the UE free of concession in the form of any one of 1) Fixed RS and 2) an RS jump sequence in each frame. The jump sequence of RS refers, in general, to the indication of a reference signal in different resources. It can be a single RS index or different RS indexes in different time-frequency free resources. There may be multiple RS indices signaled for different transmission or retransmission states. For example, one RS index can be signaled to a UE for concession-free initial transmission and another RS index can be signaled to the UE for the rest of the repetitions / retransmissions.
[00138] An MCS field to provide MCS information, if no complementary DCI signaling is being used.
[00139] A search space field for granting additional DCI that can also be predefined by a grant-free identifier (GF_ID) or a grant-free group identifier (GroupJD).
[00140] The RRC format may include an indication that the UE is a concession-free UE or that the UE is allowed to transmit using concession-free resources. The RRC format can include a concession-free EU ID (such as GF_RNTI) or a group-based ID (such as Group_RNTI) that is used to decode additional instructions using DCI.
[00141] In the example in Figure 3A, the concession-free UE does not
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34/134 needs to constantly check if there is DCI within the research space and does not need DCI to activate concession-free transmission. DCI signaling can provide additional control signaling to the UE.
[00142] Before beginning the steps in Figures 3A to 3H, the system information (described above) can be transmitted, periodically, by the base station. The system information can include information that can be used by the UE. If the information to be used by the UE is not defined in the system information, then that information will be provided in the RRC signaling and / or DCI messages.
[00143] As shown in Figure 3A, in step 300, a UE with the capacity for free concession transmissions first enters a network supported by a transmission and receiving point (TRP) or BS and can perform initial access, for example, by sending a preamble is made through a random access channel (RA) as part of a random access procedure (RACH) in an LTE network. The UE can signal to BS an indication that the UE has concession-free transmission capacity, for example, when the UE expects to transmit a large amount of small data packets.
[00144] In step 301, BS can receive the preamble of RACH RA and select a UL transmission resource to be used by the UE. One embodiment of this disclosure provides UL transmission capabilities that comprise an MA jump pattern predefined in a frame. For example, the MA hop pattern can include a predefined time-frequency resource hop pattern in a frame or a predefined RS hop pattern. The MA hop standard provides a universal RS and transmission resource mapping scheme that supports different amounts of UEs in uplink concession free multiple access transmissions. BS can obtain the predefined MA hop pattern from the network, for example, to save the MA hop pattern, or BS can obtain the MA hop pattern by generating the MA hop pattern based on in a predefined pattern generation scheme or in a predefined rule. As described above, in addition to the MA hop pattern, there are several other elements used to define the transmission feature that are included in
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35/134 RRC signaling that is transmitted to the UE.
[00145] In step 302 of Figure 3A, BS sends an UL transmission resource assignment to the UE through RRC signaling after selecting the transmission resource to be used for the concession-free UE. Examples of the message contents of the RRC signaling have been described above.
[00146] In step 303, the concession-free UE obtains all UL transmission resources. In some embodiments, the UE may derive transmission resources based on predefined rules, which will be described in more detail below, after receiving the transmission resource assignment. Alternatively, the UE can refer to the tables and the predefined transmission resource hop pattern after receiving the transmission resource assignment above. The UE can save the predefined transmission resource pattern and tables. In addition, the UE can update the predefined transmission resource pattern and tables after receiving the signal to instruct the update information. In other words, the UE can update the concession-free resource after receiving signaling to instruct the update of resource parameters. The signaling may be DCI signaling or RRC signaling, as described in the present disclosure.
[00147] In step 3031, the first batch of data arrives at the UE free of concession for transmission to BS.
[00148] In step 304, after the first batch of data arrives, the UE transmits the transmission of the first batch of data based on the assigned concession-free transmission resource. Concession-free resources can be allocated to the UE on a semi-static basis. The semi-static mode is used in this document in comparison to the dynamic option that is operating in each time slot. For example, the semi-static mode can operate periodically over a certain period of time, for example, 200 or longer time slots. Once the concession-free UE obtains the allocated resources, it can transmit data using the allocated resources immediately after the data arrives without obtaining a concession. The UE can transmit the initial transmission of the first batch of data using the assigned UL transmission resources. In some modalities,
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36/134 once the first batch of data arrives in the concession-free UE temporary storage, the UE determines the CTU regions of the next time slot or the previous opportunity that it can access from the resource assigned to the UE. The UE determines the next time interval for CTU access after the data arrives, the UE searches the CTU region in that time interval based on the assigned resource hop sequence. The UE can then transmit the initial transmission of the first batch of data using that CTU and RS region assigned to that region. The transmission may include an RS signal and a data signal. Examples of the transmitted data format are shown in Figures 6A and 6B and will be described below.
[00149] In step 305, the BS detects the data after receiving the transmission of the first batch of data. In some embodiments, when the UE sends a message to the BS, the BS first tries to detect the MA signature. The detection of the MA signature is called activity detection. Upon successfully detecting activity, BS knows that a UE has sent a concession-free uplink transmission. However, successful activity detection may or may not reveal the UE's identity to the base station. If there is a predefined RS pattern between a UE and an MA subscription, for example, as shown in Tables 8 and 9 below, then successful activity detection reveals the identity of the UE that sent the concession-free uplink transmission . In some embodiments, activity detection may additionally include obtaining the EU ID, for example, if the EU ID is encoded separately from the data.
[00150] After the activity detection is successful, the BS then tries to perform channel estimation based on the MA signature and, optionally, additional reference signals multiplexed with the data message and then decodes the data .
[00151] In step 306, BS sends an ACK or NACK based on the result of decoding. BS tries to decode the initial transmission of the first batch of data by first performing activity detection by decoding the RS signal, by performing channel estimation using the
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37/134 RS signal and then trying to decode the data. If BS can successfully decode the data, BS can send an ACK to the UE to confirm successful decryption. If BS does not successfully decode the data, BS can send a NACK to the UE or does not send any feedback at all. In some modalities, after the initial transmission of the first batch of data, in step 304, the UE may choose to relay, immediately, the first batch of data using the next available resources according to the resource allocation in step 303. In some other modalities, the UE can wait for a predefined period and, if the UE receives an ACK within the predefined period, the UE will not carry out the retransmission. Otherwise, the UE can relay the first batch of data on the next available CTU resources after the predefined period.
[00152] The UE can check ACK / NACK feedback either through a dedicated ACK / NACK channel, such as the HARQ indicator Physical Channel (PHICH) or through DCI by searching in the search space.
[00153] In Figure 3A, it is assumed that BS transmitted an ACK in step 306 since the concession-free UE received a second batch of data transmission and is not retransmitting the first batch of data transmission. The UE transmits the second batch of data, in step 307, based on the transmission resource obtained without communicating to the network entity a corresponding transmission resource assignment that allocates the transmission resources to the UE. In step 308, the BS detects the data after receiving the second batch of data transmission. Steps 307 to 309 perform the activity similar to steps 304 to 306.
[00154] If the BS has sent a NACK, then the UE will retransmit the first batch of data transmission based on the assigned transmission resource defined in the RRC signaling or an alternative transmission resource that is provided to the UE.
[00155] In some modalities of Figure 3A, the UE can check only if there is a dedicated ACK / NACK channel, such as PHICH, but it does not check if there is DCI after a first transmission. Therefore, the UE can perform only concession-free transmission and retransmission. The UE can save energy by
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38/134 does not require DCI verification even after the first transmission.
RRC and DCI signaling for retransmission [00156] Figure 3B illustrates another modality procedure for UL grant-free transmissions that includes the use of complementary RRC and DCI signaling after an initial transmission. Similar to Figure 3A, as part of the initial resource configuration, the concession-free UE does not check the DCIs before the initial transmission to the BS. After the initial transmission, the UE checks the DCI for possible retransmission instructions. In some embodiments, if retransmission is necessary, BS may switch to a concession-based scheme.
[00157] Steps 300, 301, 302, 303, 3031 and 304, of Figure 3B, are the same as the steps in Figure 3A.
[00158] In step 3041 of Figure 3B, the concession-free UE checks for DCI signaling at a designated time after transmission from step 304. Based on information received from BS, such as system information or EU ID assigned that defines the search space in which the DCI message is located, the concession-free UE detects the DCI. The concession-free UE then decodes the DCIs, first checking that the CRC, in the DCI load, is scrambled using a concession-free UE ID (such as GF_RNTI). If the CRC includes the grant-free UE ID, the UE decodes all other fields. Otherwise, DCIs are not a target for the UE.
[00159] The DCI message may indicate an ACK, NACK or concession for retransmission, as appropriate. If there is no DCI signaling detected by the concession-free UE, the UE can retransmit the first batch of data based on the assigned transmission resource, as shown in step 3042.
[00160] Once the BS has detected the data, in step 305, the BS is shown by sending an ACK to the concession-free UE in the DCI message, in step 3061, since the data has been successfully detected.
[00161] Once the UE has checked for DCI and detected ACK 3043, the UE can interrupt any retransmission that may have been
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39/134 planned.
[00162] Alternatively, BS can send a concession for retransmission. Such a situation is shown in Figure 3C.
[00163] Figure 3C illustrates another modality procedure for UL-free transmissions that includes the use of RRC and DCI signaling for retransmission. Figure 3C provides an example of when the data is not successfully received by the BS and, therefore, the BS provides a retransmission by the UE.
[00164] Steps 300, 301, 302, 303, 3031 and 304 are the same as the steps in Figure 3B.
[00165] Once the BS has detected the data in step 305, if the BS is not successful in detecting the data, the BS can send a DCI message that includes a grant for the retransmission of the data, as shown in step 306.
[00166] In some modalities, the DCI message may include, implicitly or explicitly, a NACK. If the UE receives a NACK without the concession for retransmission, the UE may retransmit on the same concession-free resource configured in the RRC signaling of step 302. In some embodiments, the DCI message may define a new concession and an indication to program again the packet transmission that failed. In some embodiments, the DCI message can define the same transmission resource that was previously defined for concession-free transmission so that the UE can retransmit it. In some embodiments, DCIs may include an updated transmission scheme, such as MCS to be used by the UE.
[00167] In step 3041, the concession-free UE checks for DCI signaling. This is the same as in Figure 3B and is described above. Upon detecting the concession for retransmission from the BS, in step 3042, the UE can retransmit the transmission of the first batch of data based on the transmission resource assigned in the concession for retransmission.
[00168] Once the BS has detected the data in step 308, if the data is successfully detected, the BS sends an ACK to the UE, as shown in step 3061. If the data is not successful,
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40/134 the BS sends a NACK or other concession for retransmission and steps 306, 3041 and 3042 can be repeated.
[00169] Once the UE has detected the ACK, the UE can interrupt any retransmission of the first batch of data transmission in step 310.
[00170] The DCI signaling format may include, for concession-based retransmission, a typical DCI format. The DCI format can include, for example, MCS, resource block used, redundancy version (RV), new data indicator (NDI), etc.). The DCI format for a concession-based retransmission may be similar to Table 1 below. Setting NDI to 1 may implicitly indicate that this is a NACK and retransmission is granted using the feature defined in the DCI.
Table 1 - DCI Fields and Formats
Field Value MCS / RV RV = next RV value (other than 0), may include new MCS value for retransmission NDI 1 (retransmission) DMRS Cyclic Displacement Flag the actual RS value to be used for concession-based retransmission Allocation ofResource Block Flag the actual resource block to be used for concession-based retransmission
[00171] More generally, the DCI signaling or message used for retransmissions may indicate whether the retransmission is concession-free or concession-based. For example, for single packet retransmissions, DCIs may include a new or existing field that indicates whether the retransmission is concession based using the transmission resource assigned in the retransmission concession, as suggested above or free from concession using pre-configured free concession resources. In a deployment, an NDI value indicates a concession-based retransmission while a different NDI value indicates a concession-free retransmission. In some modalities, the fact that the retransmission is free of
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41/134 concession or concession-based can be implicitly derived from some existing fields.
[00172] Alternatively, DCI signaling can indicate different resources for different retransmissions. For example, DCI signaling can indicate (implicitly or explicitly) concession-based resources for a first retransmission and / or concession-free resource for second (up to N) retransmissions using preconfigured concession-free resources . In another example, DCI signaling may indicate (implicitly or explicitly) grant-based resources for a first retransmission or different grant-based resources for the second (up to N) retransmission on the same DCI signaling or different DCI signaling. Other possibilities exist for DCI signaling that indicate whether a retransmission is concession-free or concession-based and the resources indicated to be used.
[00173] In some embodiments, a UE initiates free transmission of the initial concession (or first package) of a package, in which one or multiple repetitions can be included in the initial transmission based on the preconfiguration of the concession free resource to the UE. After the initial transmission, the UE will wait for an ACK, NACK or BS DCI signaling grant. If the NACK message (for example, to the UE pilot), or nothing at all, is received, the UE can use the grant-free feature for retransmissions as configured. The number of repetitions to be performed by the UE, K, can be configured in RRC signaling, as described in the present disclosure. The concession-free retransmission may include another set of K repetitions. If the DCI signaling includes a UL lease, the UE can switch to concession-based retransmissions, where BS can optionally use another DCI-based signaling to change the concession-based retransmissions for the packet to free retransmissions with the use of pre-configured resources.
[00174] In other modalities, indicated by another DCI signaling, the first retransmission of a packet uses the resource based on concession, and the second N retransmission of the packet (when applicable) uses the resources allocated free of concession. In another modality, the first
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42/134 retransmission of a packet uses the grant-based resource, indicated by a DCI signal, and the second N-retransmission of the packet (when applicable) uses the allocated free of charge resources, indicated by another DCI signal. These changes can also be indicated by other indicators or options. For the next transmission of a new data packet, the UE still uses the concession-free transmissions with a pre-assigned (or pre-configured) resource. This may mean that, in the concession-free scheme, the new data packet always uses concession-free transmissions and retransmissions, until the UE is notified by the BS to switch over to concession-based transmissions for the retransmission packets.
[00175] The two examples in Figure 3B and 3C illustrate initial access and then a single data transmission and ACK and initial access, then, a single data transmission and concession for retransmission. It should be understood that initial access is not required before each transmission. The examples each show a single scenario for the sake of clarity and thus it will be understood that a series of ACK, NACK or concession for retransmission occurrences can occur for a series of data packets being transmitted from UE to BS.
RRC signaling with a group assignment [00176] Figure 3D illustrates another modality procedure for UL-free transmissions that includes the use of RRC signaling with a group assignment. RRC signaling assigns a group ID to the concession-free UE. The same group ID can be provided to other UEs in the same group via the respective RRC signaling of the other UE, since the RRC signaling is UE specific. The UE is configured to search a predefined search space of a transmission resource if there are additional DCI messages that are addressed to a group of grant-free UEs that have been assigned the group ID.
[00177] In Figure 3D, the UE does not need to check for group DCI before the first transmission. In Figure 3E, which will be described below, the UE needs to constantly check if there is a group DCI and, after obtaining the group DCI, it can perform concession-free transmission. In addition, Figure 3E includes DCI signaling prior to assigning free resource
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43/134 concession, while the 3D Figure depends only on RRC signaling, the signaling format may also be different.
[00178] Steps 300 and 301 are the same as the steps in Figure 3A.
[00179] Step 3021 is similar to step 302 in Figure 3A, except that the RRC signaling includes a group ID.
[00180] Steps 303, 3031,304 are the same as the steps in Figure 3D.
[00181] Once the BS has detected the data in step 305, the BS sends a DCI message that includes an ACK or NACK, as shown in step 3063.
[00182] In step 3041, the concession-free UE checks for DCI signaling in a similar manner to that described in Figures 3B and 3C. The grant-free UE checks a predefined search space and uses the group ID to decode the DCIs for additional instructions on resource assignment and other instructions.
[00183] In step 3062, BS assigns or updates a new transmission resource using DCI with the group identifier.
[00184] When a second batch of data transmission arrives at the UE, the UE transmits the second batch of data, in step 3071, based on the updated transmission resource from the group DCI. Steps 308 and 309 perform the activity similar to the activity in steps 305 and 306.
[00185] Figure 3E illustrates another modality procedure for free UL concession transmissions that includes the use of RRC signaling with a group assignment.
[00186] Steps 300, 301, 3021 and 303 are the same as the steps in Figure 3D.
[00187] In step 3041, the concession-free UE checks for DCI signaling in a similar manner to that described in Figure 3D. The UE checks the predefined search space and uses the group ID to decode the DCI for additional instructions on resource assignment and other instructions.
[00188] In step 3062, BS assigns or updates a new transmission resource with the use of group DCI.
[00189] When a first batch of data arrives at the UE (step 3031), the UE transmits the first batch of data, at step 304, based on
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44/134 transmission resource assigned from group DCI. Once the BS has detected the data in step 308, the BS sends a DCI message that includes an ACK or NACK, as shown in step 309.
RRC signaling with DCI activation [00190] Figure 3F illustrates another modality procedure for UL-free transmissions that includes the use of RRC signaling with complementary DCI signaling. DCI signaling can act as an activation or deactivation for transmission in the concession-free assigned resource. The activation and deactivation indicators are sent by the BS using DCI messages to indicate whether or not the UE is allowed to perform concession-free transmission. In this case, DCI activation can provide additional information for granting a concession-free resource. Without DCI activation, the UE may not be able to obtain sufficient information for concession-free transmission with the use of RRC signaling only.
[00191] In some modalities, DCIs may have the format shown in Table 2 below.
Table 2 - DCI Fields and Formats
Field Value MCS / RV Initial MCS value, RV = 0 NDI 0 (new transmission) DMRS Cyclic Displacement Flag the first RS value in a given frame Allocation ofResource Block Flag a first resource block allocation at a first time interval
[00192] Based on the first RS value, first resource block in combination with resource jump sequence and RS jump sequence (or just predefined frame jump rule), the UE can verify the resource allocation / RS in each CTU.
[00193] RRC signaling assigns a concession-free EU ID or group ID to a group of UEs. RRC signaling also includes defining the search space so that the UE knows where to search for DCI activation. After receiving the RRC signaling, the UE cannot yet perform GF transmission until it receives an additional DCI signaling. In
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45/134 In some cases, DCI signaling can serve as an activation of concession-free transmission. In some modalities, DCI signaling serves only as a complementary semi-static signaling to help specify some concession-free resources for the UE. The UE must wait until receipt of DCI activation. Thus, the UE needs to monitor the research space for activation and deactivation indicators. The concession-free UE decodes DCIs using the assigned concession-free ID or group ID for enabling or disabling concession-free transmissions.
[00194] Steps 300 and 301 are the same as the steps in Figure 3A.
[00195] Step 3022 is similar to step 302 in Figure 3A, except that the RRC signaling includes a concession-free ID.
[00196] Step 3023 includes the UE that checks if there is a DCI message that includes an activation in a search space defined in the RRC signaling or, possibly, a combination of the system and RRC signaling.
[00197] In step 3024, BS sends a DCI activation message to the UE.
[00198] Step 303, 3031, 304, 305 and 306 are the same as the steps in Figure 3A.
[00199] After activation, the UE performs concession-free transmission on allocated resources based on both RRC signaling and DCI activation.
[00200] The UE does not constantly check DCI after receiving DCI activation. The UE can transmit in a concession-based format until DCI activation is activated.
[00201] The DCI message can also be used for deactivation. When the UE receives deactivation DCI, the UE interrupts transmission on the concession-free resources.
[00202] DCIs for activation or configuration of a concession-free UE resource may include a first RS value, a first resource block and a first MCS value in a first subframe. With this information in combination with a resource jump sequence and
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46/134 RS jump sequence that are configured in the RRC signaling, the UE can verify exact resource / RS allocation in each CTU.
[00203] In some other modalities, after the RRC signaling, the UE can continue to check for additional DCI messages. If there are DCIs that dynamically program the UE for concession-based transmission, the concession-free UE may still have the ability to perform concession-based transmission based on the DCI. After transmission, the concession-free UE can switch back to concession-free transmission. In some other modalities, DCIs can program an initial transmission to the UE, and also provide information, such as MCS, initial RS, initial resource that help to configure the concession-free allocation of UE in conjunction with the RRC signaling.
[00204] In some embodiments, a UE initiates free transmission of the initial concession (or first package) of a package, in which one or multiple repetitions can be included in the initial transmission based on the preconfiguration of the concession free resource to the UE. After the initial transmission, the UE will wait for an ACK, NACK or BS DCI signaling grant. If the NACK message (for example, to the UE pilot), or nothing at all, is received, the UE will use the grant-free resource for retransmissions as configured and, if the DCI signaling includes a UL grant, the UE will switch to concession-based retransmissions, where BS can optionally use another DCI-based signaling to switch concession-based retransmissions for the package to concession-free retransmissions using preconfigured resources.
[00205] In other modalities, indicated by another DCI signaling, the first retransmission of a packet uses the resource based on concession, and the second-N retransmission of the packet (when applicable) uses the resources allocated free of concession. In another modality, the first retransmission of a packet uses the concession-based resource, indicated by a DCI signal and the second N-retransmission of the packet (when applicable) uses the assigned free-of-charge resources, indicated by another DCI signaling. . These changes can also be indicated by other indicators or options. For the next transmission of a new data packet,
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47/134 the UE still uses concession-free transmissions with pre-assigned (or preconfigured) resources, which means that, in the concession-free scheme, the new data package always uses concession-free transmissions and retransmissions, until that the UE is notified by the BS to switch to concession-based transmissions for the retransmission packets.
[00206] For retransmissions of a packet, BS can use DCI signaling to switch to concession-based transmissions. In some modalities, there may be a new DCI signaling to change the retransmissions back to the concession-free transmission mode with pre-configured features. The signaling of the new DCI signaling can be a bit. For example, in the DCI format, there may be a new field, a concession-free or concession-based transmission indicator, where the value of this field equal to 0 indicates that the retransmission is a concession-based transmission and a value equal to 1 indicates that the retransmission is switching back to the concession-free transmission.
[00207] There can be at least two types of UEs that are configured by BS. The configuration can be done in RRC signaling, control channel or predefined for the UE. For the first type of UE, after the initial GF transmission, the UE only monitors an ACK / NACK message. There may be different possibilities for the UE when monitoring an ACK. In some modalities, the UE can continuously monitor an ACK / NACK and conduct consecutive transmissions until it correctly receives an ACK. There can be a maximum number of consecutive K transmissions, the K number can be configured over the network, for example, through RRC signaling or configured in DCI. In another embodiment, the UE can expect an ACK / NACK to arrive within a predefined time slot before retransmission. If the UE receives an ACK within the predefined time limit, the UE interrupts the retransmission, otherwise the UE retransmits. In some other modalities, the UE can continuously make K transmissions before checking ACK / NACK feedback. If the UE does not receive an ACK when the UE checks, the UE can perform other K transmissions. In another mode, the UE can perform continuous transmissions K times without checking for ACK / NACK and then enter
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48/134 in DRX / idle mode. ACK / NACK can be transmitted via a dedicated ACK / NACK channel, such as PHICH or a control channel, for example, in DCI.
[00208] For the second type of UE, after initial concession-free transmission, the UE can monitor both ACK / NACK and programming information. Programming information is typically transmitted in DCI. Programming information can include transmission resource blocks, a reference signal, MCS, redundancy (RV) version and other transmission parameters. In some embodiments, the UE T monitoring interval (in the subframes / TTIs unit) can be configured over the network. In some modalities, T> 1. In other modalities, T = 1.
[00209] Figure 3G illustrates another modality procedure for free UL concession transmissions that includes the use of RRC signaling with complementary DCI signaling.
[00210] The RRC signaling information, described below, can also be applicable to all other modalities and examples (Figure 3A to 3G) described in this disclosure.
[00211] RRC signaling may include information to define the concession free transmission resource that has a format that is similar to that of known semi-persistent programming (SPS), for example, RRC signaling for LTE-SPS format configuration .
[00212] The fields, in the UL configuration field, may include, but are not limited to, the following examples.
[00213] The RRC signaling may include a concession-free ID field (such as GF-RNTI) and one or more configuration fields for configuring for UL (gf-ConfigUL) or for configuring for downlink (DL) (gf -ConfigDL).
[00214] In some modalities, the concession-free ID (GF-RNTI) or group ID (group_RNTI) can be assigned so that it has a predefined mapping relationship with the resource hopping pattern. For example, the GF-RNTI may include the UE index shown in Figure 5A, which has a unique mapping with the resource jump pattern, as described in the disclosure. In some modalities, the GF-RNTI may contain both the index of
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UE (which is used to identify the resource hop pattern and RS hop pattern) as well as a UE ID (C-RNTI) which is used to decode DCI. In some embodiments, the UE index may be among the first bits of GFRNTI and the UE ID for decoding DCI may be the other few bits. In some embodiments, the EU index and the EU ID for decoding DCI can be hidden together in GF-RNTI and can be retrieved by performing an XOR function with a predefined value. In some modalities, GF-RNTI has a one-to-one mapping relationship with the resource hop pattern and the RS hop pattern. In such scenarios, the resource hop pattern and the RS hop pattern may not need to be explicitly flagged in RRC.
[00215] The fields, in the UL configuration field, may include, but are not limited to, the following examples. All fields can be optional depending on the situation.
[00216] A field that indicates a number of empty transmissions before an implicit release. The e2 value corresponds to 2 transmissions, e3 corresponds to 3 transmissions and so on. (implicitReleaseAfter) [color su te 3GPP TS 36.321: Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification. [6, 5.10.2] [00217] A field for Parameter List: ”pucch _for antenna port P0 and for antenna port P1, respectively. The n1-PUCCHAN-PersistentListP1 field is applicable only if the twoAntennaPortActivatedPUCCHFormatlalb in PUCCH-ConfigDedicated-v1020 is set to true. Otherwise, this field may not be configured. (nlPUCCHAN-PersistentList, n1PUCCH-AN-PersistentListP1) [see 3GPP TS 36.213: “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures. [23, 10.1] [00218] A field that defines a number of HARQ processes configured for Downlink Semi-Persistent Programming. (numberOfConfSPS-Processes) [see TS 36.321 [6]].
[00219] A field that defines the number of HARQ processes configured for uplink semi-persistent programming or uplink concession free transmission. This field can be
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50/134 configured for asynchronous UL HARQ. Otherwise, this field may not be configured. (numberOfConfUISPS-Processes) see TS 36.321 [6] [00220] A field that is a parameter: ^p o_nominal_pusch (°) _un jt jBm step 1. This field is applicable to persistent programming or concession-free transmission configuration only. If the definition of choice is used and pO-Persistent is absent, apply the value of pO-NominalPUSCH to pONominalPUSCH-Persistent. If uplink power control subframe sets are configured via tpcSubframeSet, this field applies to uplink power control subframe set 1. (p0-NominalPUSCH-Persistent) Consu TS TS 36.213 [23 , 5.1.1.1] [00221] A field that is a parameter: ^p o_nominal_pusch (°) _un j _t jBm step 1. This field is applicable to persistent programming only. If pOPersistentSubframeSet2-r12 is not configured, apply the value of pONominalPUSCH-SubframeSet2-r12 to pO-NominalPUSCHPersistentSubframeSet2. E-UTRAN configures this field only if the uplink power control subframe sets are configured using tpc-SubframeSet, in which case this field applies to the uplink power control subframe set 2. (p0NominalPUSCH -PersistentSubframeSet2) See TS 36.213 [23, 5.1.1.1], [00222] A field that is a parameter: 7) _ue_pusch (°) _un jt jb. ^ This field is applicable to persistent programming only. If choice definition is used and pO-Persistent is absent, apply the pO-UE-PUSCH value to pO-UE-PUSCH-Persistent. If uplink power control subframe sets are configured using tpcSubframeSet, this field applies to uplink power control subframe set 1. (pO-UE-PUSCH-Persistent) See TS 36.213 [ 23, 5.1.1.1], [00223] A field that is a parameter: 7) _ue_pusch (°) _un jt jb. ^ This field is applicable for persistent programming and concession-free transmission only. If pO-PersistentSubframeSet2-r12 is not configured, apply the value of pO-UE-PUSCH-SubframeSet2 to pO-UE-PUSCH
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PersistentSubframeSet2. E-UTRAN configures this field only if the uplink power control subframe sets are configured using tpc-SubframeSet, in which case this field applies to the uplink power control subframe set 2. (pOUE -PUSCH-PersistentSubframeSet2) Refer to TS 36.213 [23, 5.1.1.1] [00224] A field to define the Semi-Persistent Programming C-RNTI, [see TS 36.321 [6] . (SemiPersistSchedC-RNTI) and, in the case concession-free transmission, the EU-concession-free transmission ID (GF-RNTI) or a group ID for group-based concession-free transmission (Group-RNTI) [00225] A field that defines a semi-persistent programming interval downlink. Value in number of subframes. The sf10 value corresponds to 10 subframes, sf20 corresponds to 20 subframes and so on. For TDD, the UE should round this parameter down to the nearest whole number (of 10 subframes), for example, sf10 corresponds to 10 subframes, sf32 corresponds to 30 subframes, sf128 corresponds to 120 subframes. (semiPersistSchedlntervalDL), refer to TS 36.321 [6] [00226] A field that defines a semi-persistent programming interval or free-of-charge transmission interval on uplink, Value in number of subframes. The sf10 value corresponds to 10 subframes, sf20 corresponds to 20 subframes and so on. For TDD, the UE should round this parameter down to the nearest whole number (of 10 subframes), for example, sf10 corresponds to 10 subframes, sf32 corresponds to 30 subframes, sf128 corresponds to 120 subframes. (semiPersistSchedlntervalUL) [TS 36.321 [6].] [00227] A field for activating two-interval SemiPersistent Programming or two-interval uplink free transmission. If this field is present, two interval SPS is enabled for uplink. Otherwise, this field can be disabled. (twoIntervalsConfig) [See TS 36.321 [6, 5.10]].
[00228] A concession free frame interval for UL field that defines the periodicity of the resource jump pattern in terms of a
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52/134 number of subframes. It can use frame length, in which case the field can be optional (use frame length defined for the system by default).
[00229] A concession-free programming interval UL field that defines the interval between two concession-free transmission opportunities. In some deployments, the field pattern is 1 if not specified. The interval can be the time interval between two free concession resources, which is sometimes called the periodicity of the free concession resource.
[00230] There may also be fields for parameters related to power control that can serve a purpose similar to that used for LTE semi-persistent programming (SPS).
[00231] A CTU size frequency field that defines the number of RBs used by CTU in frequency domain or CTU region block size. In some modalities, the indication of the frequency domain of a concession-free resource may indicate the resource block index (physical resource block index or virtual resource block index). The resource block index can also be indicated using the initial or final RB index and the number of RBs. In some deployments, the time domain size can be standardized for a subframe or TTI, so only frequency domain is needed. The field is not necessary if it is defined in SIB or if there is signaling of complementary DCI. The time domain size of the resource (for example, TTI) can also be defined in RRC, for example, a slot, a minislot, multiple slots, an OFDM symbol or multiple OFDM symbols. There may be another field that defines the time domain location of grant-free resources. For example, there may be a deviation value in addition to the periodicity signaled in the RRC signaling. The offset value indicates the time location of a free concession resource, for example, it can indicate the time location (for example, a slot index) of the free concession resource in relation to a system frame number (SFN ) = 0. In some modalities, the deviation may not need to be signaled, it may have a default value, for example, in slot 0.
[00232] A resource jump pattern field to define the
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53/134 feature jump pattern. In some embodiments, the resource jump pattern field is defined as a sequence of frequency location indices in each frame and in each time interval with unit time equal to a UL value of the concession-free programming interval. In some embodiments, the resource hop pattern field is defined as a sequence of frequency location indices in each frame in each time interval in general. The time interval can be a TTI, a slot, a time slot, a subframe, a minislot, an OFDM symbol, a number of OFDM symbols, or any time unit. The time interval can also be the time location of the free concession resources, the location of free concession resources can be separated by the configured periodicity of the resource. For example, the resource hop pattern can be defined as a subband index or frequency partition in each slot within a frame or within a resource hop pattern periodicity. In some embodiments, the resource jump pattern field is defined by a sequence of CTU indices at each time interval in each frame. A resource hop pattern can be provided to the concession-free UE in the form of any one of 1) a single UE index defined from a predefined resource assignment rule, 2) a resource hop index sequence that indicates the frequency index of each time slot, or 3) any implicit or explicit signaling of actual physical time-frequency resources that can be used in each time slot. In this document, the resource jump pattern also includes the indication of the time-frequency resource of the concession-free resources.
[00233] An RS jump sequence field to define the RS jump sequence. The RS jump sequence field can include an RS index to be used in frame n. If the RS changes at each time interval, the RS jump sequence field can include a sequence of indices at each time interval. The RS jump sequence may not be necessary if complementary DCIs are available. An RS jump sequence can be provided to the UE free of concession in the form of any one of 1) Fixed RS and 2) an RS jump sequence in each frame. The jump sequence of RS generally refers to the indication of the reference signal
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54/134 in different resources. It can be a single RS index or different RS indexes in different time-frequency free resources. There may be multiple RS indices signaled for different transmission or retransmission states. For example, one RS index can be signaled to a UE for concession-free initial transmission and another RS index can be signaled to the UE for the rest of the repetitions / retransmissions.
[00234] An MCS field to provide MCS information, if no complementary DCI signaling is being used.
[00235] A search space field for granting additional DCI that can also be predefined by GF_ID or GroupJD.
[00236] The RRC format may include an indication that the UE is a concession-free UE or that the UE is allowed to transmit using the GF resource. The RRC format can include a concession-free EU ID (such as GF_RNTI) or a group-based ID (such as Group_RNTI) that is used to decode additional instructions using DCI.
[00237] In some embodiments, DCI signaling can be used to provide additional relevant information to the UE. In some deployments, an activation or deactivation indicator may be provided using DCI. The activation and deactivation indicators can be sent by the BS to indicate whether the UE is or is not allowed to use the concession free transmission feature defined for the UE.
[00238] In some modalities, without the activation of DCI, the UE may not obtain sufficient information for transmission free of concession with the use of RRC signaling only.
DCI Format [00239] The DCI format that is used to activate / release the UL free-grant mode or send or grant for transmission / retransmission or used to configure the grant-free resource in conjunction with RRC signaling. The DCI format can be similar to the DCI format that is used for PUSCH programming in an UL cell.
[00240] The following information can be included in the DCI format transmitted via the DCI format. The DCI format may have other new fields, some of which are described in the disclosure and all fields
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[00241] A carrier indicator field that can be 0 or 3 bits. This field is present according to the definitions in (3GPP TS 36.213: “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures. [3]) [00242] A flag for formatO / formatlA differentiation that can be 1 bit, where a value of 0 indicates format 0 and a value of 1 indicates format 1A.
[00243] A frequency hop flag that is 1 bit, as defined in section 8.4 of [3], This field is used as the most significant bit (MSB) of the corresponding resource allocation field for type 1 resource allocation.
[00244] A resource block assignment and jump resource allocation field that is ^log z ^{+1) / 2)} l bits. In the case of jumping from PUSCH to a resource allocation of type 0 only), Nuljwp MSB bits are used to obtain the value of as indicated in section 8.4 of [3], A number of ..., [Tlog2 (AS (AS + 1) / 2) 1 -A _ULh J | _.
bits equal to ^_ > bits provides the resource allocation of the first slot in the UL subframe. In case of non-PUSCH jump with allocation fflog ₂ (N ^ (N ^ +1) / 2) 1 1 of resource type ⁰ bits ⁷ bits provide resource allocation in the UL subframe, as defined in section 8.1.1 of [ 3], In the case of non-PUSCH hop with type 1 resource allocation, the concatenation of the frequency hop flag field and the resource block assignment and hop resource allocation field provides the resource allocation field in the UL subframe, as defined in section 8.1.2 of [3], [00245] A modulation and coding scheme field and redundancy version that is 5 bits, as defined in section 8.6 of [3], [00246] A new data indicator field that is 1 bit.
[00247] A TPC command for programmed PUSCH - 2 bits, as defined in section 5.1.1.1 of [3], [00248] A cyclic offset for index field OCC and DM RS that is 3 bits, as defined in section 5.5 .2.1.1 of (3GPP TS 36.211:
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56/134 “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures. [2]).
[00249] A UL index field that is 2 bits, as defined in sections 5.1.1.1,7.2.1,8 and 8.4 of [3], This field is only present for TDD operation with uplink-link configuration descending 0.
[00250] A Downlink Assignment Index (DAI) field that is 2 bits, as defined in section 7.3 of [3], This field is present only for cases with primary TDD cell and both TDD operation with configurations of uplink-downlink 1 to 6 or FDD operation. A CSI request field that is 1.2 or 3 bits, as defined in section 7.2.1 of [3], The 2 bit field applies to UEs configured with no more than five DL cells and UEs that are configured with more than one DL cell and when the corresponding DCI format is mapped over the specific UE search space provided by the C-RNTI, as defined in [3], UEs that are configured by higher layers with more than a CSI process and when the corresponding DCI format is mapped over the specific UE search space provided by CRNTI, as defined in [3] and UEs that are configured with two higher layer CSI measurement sets with the parameter csiMeasSubframeSet, and when the corresponding DCI format is mapped over the UE-specific search space provided by the C-RNTI, as defined in [3], The 3-bit field applies to UEs that are configured with more than five cells of DL and when the form corresponding DCI act is mapped over the UE-specific search space provided by the C-RNTI, as defined in [3], For scenarios not covered by the 2-bit or 3-bit fields, the 1-bit field applies.
[00251] An SRS request field that is 0 or 1 bit. This field can only be present in DCI formats that program PUSCH that are mapped onto the specific EU research space provided by the C-RNTI, as defined in [3], The interpretation of this field is provided in section 8.2 of [3 ], [00252] A resource allocation type field that is 1 bit. That
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AfUL _< atDL field is present only when Rb - Rb. The interpretation of this field is provided in section 8.1 of [3], If the number of bits of information in format 0 mapped over a given search space is less than the payload size of format 1A to program the same server cell and mapped over the same search space (including any padding bits attached to the 1A format), zeros must be attached to the 0 format until the payload size is the same as that of the 1A format.
[00253] In some modalities, the activation DCI can have the following format:
Table 3 - DCI Fields and Formats
Field Value for DCI 0 Command from TPC to PlISCHProgrammed "00" DM RS of cyclic displacement "000" Modulation and Coding Scheme and Redundancy Version MSB set to “0” HARQ Process Number AT Modulation Scheme andCoding AT Redundancy version AT
[00254] In some modalities, the DCI of deactivation (or release) can have the following format:
Table 4 - DCI Fields and Formats
Field Value for DCI 0 Command from TPC to PLISCHProgrammed "00" DM RS of cyclic displacement "000" Modulation and Coding Scheme and Redundancy Version "11111" Resource block assignment and All set to “1” s
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hop resource allocation HARQ Process Number AT Modulation Scheme andCoding AT Redundancy version AT Resource block assignment AT
[00255] In some modalities, activation DCIs can have the following format:
Table 5 - DCI Fields and Formats
Field Value MCS / RV Initial MCS value, RV = 0 NDI 0 (new transmission) DMRS Cyclic Displacement Flag the first RS value in a given frame Allocation ofResource Block Flag a first resource block allocation at a first time interval
[00256] In the format above, the activation of DCI also includes some information for semistatic resource configuration or an initial programming concession. When used for semistatic resource configuration. Based on the first RS value, first resource block in combination with RS jump sequence and RS jump sequence (or just predefined RS jump rule of frames), the UE can see the particular RS / resource allocation in each CTU.
[00257] In some modalities, DCI can be used to program a continuous transmission until an ACK is received instead of a single transmission. The transmission hop pattern can be predefined, configured for the UE in RRC signaling or indicated in DCI format. The indicator for the continuous relay hop pattern can be in the existing field, for example, defined in the resource block field or in a new field, for example, a hop index that indicates the hop pattern.
[00258] In some deployments, additional information regarding the allocation of a concession-free resource can be provided by BS using DCI. For example, DCIs can be used to provide the UE with
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59/134 information, such as a feature hop pattern or a reference signal (RS) hop pattern. In this scenario, RRC signaling may not need to configure the resource hop pattern and the reference signal (RS) hop pattern. In some modalities, there may be new fields in DCI, such as the resource hop pattern or the RS hop pattern that is similar to the field, as described in relation to RRC signaling. In some scenarios, this information may be indicated in an existing DCI format. For example, the resource jump pattern can be indicated in the resource block assignment field. In some modalities, the RS hop pattern can be indicated in the cyclic displacement field of DMRS.
[00259] RRC signaling assigns a concession-free EU ID or group ID to a group of UEs. RRC signaling can also include defining the search space so that the UE knows where to search for DCI activation. Alternatively, this can be included in the system information disseminated by BS.
[00260] After receiving the RRC signaling, the UE cannot yet perform concession-free transmission until the UE receives DCI signaling. In some cases, DCI signaling can serve as the activation of concession-free transmission. In some modalities, DCI signaling serves only as a complementary semi-static signaling to help specify some concession-free resources for the UE. The UE must wait until receipt of DCI activation before making any concession-free transmissions. In this way, the UE monitors the search space for at least activation and deactivation indicators, but also possibly additional resources that can be used by the UE to help determine the transmission resource.
[00261] The concession-free UE decodes DCI using the assigned concession-free UE ID or group ID for enabling or disabling concession-free transmissions or additional information that can be used by the UE.
[00262] Referring to Figure 3G, steps 300 and 301 are the same as the steps in Figure 3F.
[00263] In step 302, the BS sends a resource allocation of
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60/134 transmission from UL to UE through RRC signaling after selecting the transmission resource to be used for the concession-free UE. The RRC flag includes a concession-free ID and other fields that may be consistent with the existing SPS flag and as described above. There may be other fields not used in LTE SPS signaling, such as the resource hop pattern fields or concession free frame interval fields described earlier in the disclosure. The RRC signaling can optionally include all of the RRC signaling fields described for Figure 3A. RRC signaling can include resource frequency, power control parameters, repetition number K, a hop flag that indicates whether or not the frequency hop is used, etc.
[00264] Step 303 includes the UE that checks if there is DCI in the research space defined in the RRC signaling. In some deployments, DCIs may include additional information to be used by the UE to determine the concession free transmission feature in combination with RRC signaling or system information. In some deployments, DCIs may include an activation indicator. The UE can search for DCIs in a search space defined in RRC signaling or possibly a combination of RRC signaling and system signaling.
[00265] In step 3021, BS sends a DCI message that can include information or an activation indicator for use in defining the resource assignment to the UE.
[00266] In step 3032, the UE obtains all transmission resources from UL. This may involve the use, by the UE, of any of the RRC signaling information, system information, DCI information or combinations thereof to determine the concession free transmission resource.
[00267] In step 3031, the first batch of data arrives at the UE free of concession for transmission to the base station.
[00268] In step 304, after the first batch of data arrives, the UE transmits the first batch of data transmission based on the assigned concession-free transmission resource. Concession-free resources can be allocated to the UE on a semi-static basis. The semi-static mode is
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61/134 used in this document, compared to the dynamic option that is operating in each time slot. For example, the semi-static mode can operate periodically over a certain period of time, for example, 200 or longer time slots. Once the concession-free UE obtains the allocated resources, it can transmit data using the allocated resources immediately after the data arrives without obtaining a concession. The UE can transmit the initial transmission of the first batch of data using the assigned UL transmission resources. In some embodiments, once the first batch of data arrives in the concession-free UE temporary storage, the UE determines the CTU regions of the next time slot or the previous opportunity that it can access from the resource assigned to the UE. The UE determines the next time slot for CTU access after data arrives, the UE searches for the CTU region in that time slot based on the assigned resource hop sequence. The UE can then transmit the initial transmission of the first batch of data using that CTU and RS region assigned to that region. The transmission may include an RS signal and a data signal.
[00269] In step 305, BS detects the data after receiving the transmission of the first batch of data. In some embodiments, when the UE sends a message to the BS, the BS first tries to detect the MA signature. The detection of the MA signature is called activity detection. Upon successfully detecting activity, BS knows that a UE has sent a concession-free uplink transmission. However, successful activity detection may or may not reveal the UE's identity to BS. If there is a predefined RS pattern between a UE and an MA signature, for example, as shown in tables 8 and 9 below, then successful activity detection reveals the identity of the UE that sent the free uplink transmission grant. In some embodiments, activity detection may additionally include obtaining the EU ID, for example, if the EU ID is encoded separately from the data.
[00270] After the activity detection is successful, the BS then tries to perform channel estimation based on the MA subscription and,
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62/134 optionally, additional reference signals multiplexed with the data message and then decode the data.
[00271] In step 306, BS sends the ACK or NACK based on the decoding result. BS tries to decode the initial transmission of the first batch of data by first performing activity detection by decoding the RS signal, by performing channel estimation using the RS signal and then trying to decode the data . If BS can successfully decode the data, BS can send an ACK to the UE to confirm successful decryption. If BS does not successfully decode the data, BS can send a NACK to the UE or does not send any feedback at all. In some modalities, after the initial transmission of the first batch of data, in step 304, the UE may choose to relay, immediately, the first batch of data using the next available resources according to the resource allocation in step 303. In some other modalities, the UE can wait for a predefined period and, if the UE receives an ACK within the predefined period, the UE will not carry out the retransmission. After activation, the UE performs concession-free transmission on allocated resources based on both RRC signaling and DCI activation.
[00272] In some modalities, the UE does not constantly check DCI after receiving DCI activation. In some modalities, the UE monitors for DCI messages if BS can use DCI to switch the UE for concession-based transmission. In some modalities, the UE monitors for DCI messages in the event of a DCI deactivation. In some modalities, the UE may transmit in a concession-based format until DCI activation is activated.
[00273] The DCI message can also be used for deactivation. When the UE receives deactivation DCI, it interrupts transmission on the concession-free resources.
[00274] DCIs for configuration or activation of a concession-free UE resource may include a first RS value, a first resource block and a first MCS value in a first subframe. With this information in combination with a resource jump sequence and a sequence of
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63/134 jump of RS that are configured in the RRC signaling, the UE can verify the exact resource / RS allocation in each CTU.
[00275] In some other modalities, after the RRC signaling, the UE can continue to check for additional DCI messages. If there are DCIs that dynamically program the UE for concession-based transmission, the concession-free UE may still have the ability to perform concession-based transmission based on the DCI. After transmission, the concession-free UE can switch back to the concession-free transmission. In some other modalities, DCIs can program an initial transmission to the UE, and also provide information, such as MCS, initial RS, initial resource that help to configure the concession-free allocation of UE in conjunction with the RRC signaling.
[00276] Figure 3H illustrates another modality procedure for free UL concession transmissions that includes the use of RRC signaling with complementary DCI signaling. A difference between Figure 3H and Figure 3G is that, in Figure 3H, DCI activation can provide only one activation signal and may not contain necessary information, such as MCS, resource block, RS for UE resource configuration . The UE may not have all the necessary information from the system or RRC information to enable initial transmission or retransmission, and therefore, the UE should be provided with additional information that defines the transmission resource for the initial transmission or subsequent transmissions. additional DCI in addition to the activation DCI. In Figure 3G, DCI activation may also have provided some complementary information for resource configuration, such as a first MCS, RS and resource block, so the UE can initiate concession-free transmission after DCI activation.
[00277] Steps 300 and 301 are the same as the steps in Figure 3G.
[00278] In step 302, the BS sends an UL transmission resource assignment to the UE through RRC signaling after selecting the transmission resource to be used for the concession-free UE. The RRC flag includes a concession-free ID and other fields that may be consistent with the existing SPS flag and as described above. There may be other fields not used in LTE SPS signaling, such as
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64/134 the resource hop pattern fields or the concession free frame interval fields described earlier in the disclosure.
[00279] Step 303 includes the UE that checks DCI in a search space defined in the RRC signaling. In some deployments, DCIs may include additional information to be used by the UE to determine the concession free transmission feature in combination with RRC signaling or system information. In some deployments, DCIs may include an activation indicator. The UE can search for DCIs in a search space defined in RRC signaling or possibly a combination of RRC signaling and system signaling.
[00280] In step 3021, BS sends a DCI message that can include an activation indicator.
[00281] In a repetition of step 303, the UE is checking, again, the research space in search of DCI.
[00282] In step 3022, BS transmits DCI for initial programming.
[00283] In step 3032, the UE obtains all transmission resources from UL. This may involve the use, by the UE, of any of the RRC signaling information, system information, DCI information or combinations thereof to determine the concession free transmission resource.
[00284] In step 3031, the first batch of data arrives at the UE free of concession for transmission to the base station.
[00285] In step 304, after the first batch of data arrives, the UE transmits the first batch of data transmission based on the assigned concession-free transmission resource. Concession-free resources can be allocated to the UE on a semi-static basis. The semi-static mode is used in this document in comparison to the dynamic option that is operating in each time slot. For example, the semi-static mode can operate periodically over a certain period of time, for example, 200 or longer time slots. Once the concession-free UE obtains the allocated resources, it can transmit data using the allocated resources immediately after the data arrives without obtaining a concession. The UE can transmit the initial transmission of the first batch of data with the
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65/134 use of assigned UL transmission resources. In some embodiments, once the first batch of data arrives in the concession-free UE temporary storage, the UE determines the CTU regions of the next time slot or the previous opportunity that the UE can access from the resource assigned to the HUH. The UE determines the next time slot for CTU access after data arrives, the UE searches for the CTU region in that time slot based on the assigned resource hop sequence. The UE can then transmit the initial transmission of the first batch of data using that CTU and RS region assigned to that region. The transmission may include an RS signal and a data signal.
[00286] In step 305, BS detects the data after receiving the first batch of data transmission. In some embodiments, when the UE sends a message to the BS, the BS first tries to detect the MA signature. The detection of the MA signature is called activity detection. Upon successfully performing activity detection, the base station knows that a UE has sent a concession-free uplink transmission. However, successful activity detection may or may not reveal the UE's identity to BS. If there is a predefined RS pattern between a UE and an MA signature, for example, as shown in Tables 8 and 9 below, then successful activity detection reveals the identity of the UE that sent the free uplink transmission grant. In some embodiments, activity detection may additionally include obtaining the EU ID, for example, if the EU ID is encoded separately from the data.
[00287] After the activity detection is successful, BS then tries to perform channel estimation based on the MA signature and, optionally, additional reference signals multiplexed with the data message and then decode the data .
[00288] In step 306, BS sends the ACK or NACK based on the decoding result. BS tries to decode the initial transmission of the first batch of data by first performing activity detection by decoding the RS signal, by performing channel estimation using the RS signal and then trying to decode the data . If BS can decode
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66/134 the data successfully, BS can send an ACK to the UE to confirm successful decryption. If BS does not successfully decode the data, BS can send a NACK to the UE or does not send any feedback at all. In some modalities, after the initial transmission of the first batch of data, in step 304, the UE may choose to relay, immediately, the first batch of data using the next available resources according to the resource allocation in step 303. In some other modalities, the UE can wait for a predefined period and, if the UE receives an ACK within the predefined period, the UE will not carry out the retransmission. After activation, the UE performs concession-free transmission on allocated resources based on both RRC signaling and DCI activation.
[00289] In step 3026, BS can transmit DCI for deactivation or release of the concession-free transmission resource. Although only a single transmission is shown prior to deactivation / release, it is understood that there may be a series of transmissions, some of which are successfully decoded and others that are not that may require retransmission, and any signaling that may cover .
DCI for continuous transmission up to ACK [00290] In some modalities, DCI can define a feature that programs a transmission resource for multiple transmissions until a trigger is reached to interrupt transmissions. For example, in a deployment, the resource can be programmed to transmit, 1 to K times, repeatedly, including the initial transmission. Upon reaching a maximum of K times, the UE will stop using that resource in an attempt to transmit that data. In another deployment, the feature can be programmed to transmit, repeatedly, until an ACK is received from the base station. Once the ACK is received, the UE will stop using that resource to attempt to transmit that data.
[00291] In order to implement the functionality, DCIs can include information to schedule an initial transmission for the data, as illustrated in step 3022 in Figure 3H. The transmission feature for
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67/134 subsequent retransmissions may be known to the UE from a predefined pattern that is provided to the UE in at least one of RRC or other DCI signaling.
[00292] In some embodiments, a UE initiates transmission free of initial concession (or first package) of a package, in which one or multiple repetitions can be included in the initial transmission based on the preconfiguration of the concession free resource to the UE. After the initial transmission, the UE will wait for ACK / NACK or a BS DCI signaling grant. If the NACK message (for example, to the UE pilot), or nothing at all, is received, the UE will use the grant-free resource for retransmissions as configured and, if the DCI signaling includes a UL grant, the UE will switch to the concession-based retransmissions, where BS can optionally use another DCI-based signaling to switch the concession-based retransmissions to the package for concession-free retransmissions using preconfigured resources.
[00293] In other modalities, indicated by another DCI signaling, the first retransmission of a packet uses the resource based on concession, and the second N retransmission of the packet (when applicable) uses the resources allocated free of concession. In another modality, the first retransmission of a packet uses the concession-based resource, indicated by a DCI signal; and the second-N retransmission of the packet (when applicable) uses the resources allocated free of concession, indicated by another DCI signaling. These changes can also be indicated by other indicators or options. For the next transmission of a new data packet, the UE still uses the concession free transmissions with a pre-assigned (or pre-configured) resource, which means that, in the free concession scheme, the new data packet always uses the transmissions and concession-free retransmissions, until the UE is notified by the BS to switch to concession-based transmissions for the retransmission packets.
[00294] For retransmissions of a packet, BS can use DCI signaling to switch to concession-based transmissions. In some modalities, there may be a new DCI signaling to change the
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68/134 retransmissions back to concession-free transmission mode with pre-configured features. The signaling of the new DCI signaling can be a bit. For example, in the DCI format, there may be a new field, a concession-free or concession-based transmission indicator, where the value of this field equal to 0 indicates that the retransmission is a concession-based transmission and a value equal to 1 indicates that the retransmission is switching back to the concession-free transmission.
[00295] There can be at least two types of UEs that are configured by BS. The configuration can be done in the RRC signaling, control channel or predefined for the UE. For the first type of UE, after the initial GF transmission, the UE only monitors an ACK / NACK message. There may be different possibilities for the UE to monitor an ACK. In some modalities, the UE can continuously monitor ACK / NACK and conduct consecutive transmissions until the UE correctly receives an ACK. There can be a maximum consecutive number of K transmissions, the K number can be configured by the network, for example, through RRC signaling or configured in DCI. In some other embodiments, the UE can continuously transmit K transmissions in which K is predefined or signaled. In another embodiment, the UE can expect an ACK / NACK to arrive within a predefined time slot before retransmission. If the UE receives an ACK within the predefined time limit, the UE interrupts the retransmission, otherwise the UE retransmits. In some other modalities, the UE can continuously make K transmissions before checking ACK / NACK feedback. If the UE does not receive an ACK when the UE checks, the UE can perform other K transmissions. In another mode, the UE can perform K continuous transmissions without checking ACK / NACK and entering a DRX / inactive mode. ACK / NACK can be transmitted via a dedicated ACK / NACK channel, such as PHICH or a control channel, for example, in DCI.
[00296] For the second type of UE, after initial concession-free transmission, the UE can monitor both ACK / NACK and programming information. Programming information is typically transmitted in DCI. Programming information can include resource blocks of
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69/134 transmission, reference signal, MCS, redundancy (RV) version and other transmission parameters. In some embodiments, the UE T monitoring interval (in the subframes / TTIs unit) can be configured over the network. In some modalities, T> 1. In other modalities, T = 1 [00297] The following description can be applied to all cases described in the disclosure. After a concession-free UE performs initial transmission, an option is for the UE to transmit, continuously, until an ACK is received, then the number of K transmissions is dynamic depending on channel conditions and ACK delay. Another option is to establish a fixed number for consecutive transmission, for example, 3, 4, which is configured in a semi-static way. The following are two options for determining the number of K transmissions. For an UL grant-free transmission occasion, K consecutive transmissions (or repetitions) are performed without waiting for you to have an ACK / NACK until K transmissions are completed. For an UL grant-free transmission occasion, up to K consecutive transmissions (or repetitions) are performed with the expectation that an ACK can arrive in any time slot for early transmission termination.
[00298] Figure 3I illustrates another modality of procedures for transmissions free of UL concession. As shown in Figure 3I, in step 300, a UE with the capacity for free concession transmissions first enters a network supported by a TRP or BS and can perform initial access, for example, by sending a preamble through a channel random access (RA) as part of a random access (RACH) procedure on an LTE network. The UE can signal to BS an indication that the UE is capable of transmission free of concession, for example, when the UE expects to transmit a large quantity of small data packets.
[00299] In step 301, the BS can receive the preamble of RACH RA and select a UL transmission resource to be used by the UE. Arrangements for providing UL transmission capabilities may include an MA jump pattern predefined in a frame. As an example, the MA hop pattern can include a time feature hop pattern
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70/134 preset frequency in a frame or a preset RS hop pattern, or both. The MA hop standard provides a universal RS and transmission resource mapping scheme that supports different amounts of UEs in uplink concession free multiple access transmissions. BS can obtain the predefined MA hop pattern from the network, as an example, to save the MA hop pattern, or BS can obtain the MA hop pattern by generating the MA hop pattern with based on a predefined pattern generation scheme or a predefined rule.
[00300] In step 302 of Figure 3I, the UE sends an UL transmission resource assignment to the UE after selecting the transmission resource to be used for the UE. In this mode, there are 3 options for allocating the transmission assignment. These will be described in more detail below.
[00301] In step 303, the UE obtains all transmission resources from UL. In some embodiments, the UE may derive transmission resources based on predefined rules described in this disclosure after receiving the transmission resource assignment. In some embodiments, the UE can refer to the tables and the predefined transmission resource hop pattern after receiving the transmission resource assignment above. The UE can save the predefined transmission resource pattern and tables, and the UE can also update the predefined transmission resource pattern and tables after receiving the signal to instruct the update information.
[00302] In step 304, when the data arrives at the UE, the UE transmits a first batch data transmission based on the assigned transmission resource. Concession-free resources can be allocated to the UE on a semi-static basis. Once the concession-free UE obtains the allocated resources, the UE can transmit data using allocated resources immediately after the data arrives without obtaining a concession. In step 304, the UE can transmit the initial transmission of the first batch of data using the assigned UL transmission resources. Before step 304, the UE found the resources it can access using any method described above. In some deployments, step 304 may include the following procedure: once the first batch of data arrives at the UE temporary storage, the UE determines the CTU regions of the
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71/134 next time slot or the oldest opportunity that can access from the resource assigned to the UE. The process can be as follows: the UE determines the next time interval for CTU access after the data arrives, the UE searches for the CTU region in that time interval based on the assigned resource hop sequence. The UE can then transmit the initial transmission of the first batch of data using that CTU and RS region assigned to that region. The transmission may include an RS signal and a data signal. In step 305, the BS detects the data after receiving the first batch of data transmission. When the UE sends a message to the BS, the BS first tries to detect the MA signature. The detection of the MA signature is called activity detection. By successfully performing activity detection, BS knows that a UE has sent a concession-free uplink transmission. However, successful activity detection may or may not reveal the UE's identity to BS. There is a predefined RS pattern between a UE and an MA signature, as shown in tables 8 and 9, so successful activity detection reveals the identity of the UE that sent the concession-free uplink transmission. In some embodiments, activity detection may additionally include obtaining the UE ID, for example, if the UE ID is encoded separately from the data, as shown in the example message 128 of the Figure. 6A described below.
[00303] After the activity detection is successful, the BS then tries to perform channel estimation based on the MA signature and, optionally, additional reference signals multiplexed with the data message and then decode the data .
[00304] In step 306, BS sends the ACK or NACK based on the result of decoding. BS tries to decode the initial transmission of the first batch of data by first performing activity detection by decoding the RS signal, by performing channel estimation using the RS signal and then trying to decode the data . If BS can successfully decode the data, BS can send an ACK to the UE to confirm successful decryption. If BS does not successfully decode the data, BS can send a NACK to the UE or does not send
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72/134 any feedback at all. In some modalities, after the initial transmission of the first batch of data, in step 304, the UE may choose to relay, immediately, the first batch of data using the next available resources according to the resource allocation in step 303. In some other modalities, the UE can wait for a predefined period, if the UE receives an ACK within the predefined period, the UE will not carry out the retransmission. Otherwise, the UE will relay the first batch of data on the next available CTU resources after the waiting period.
[00305] When the second batch of data arrives at the UE, the UE transmits the second batch of data at step 307 based on the transmission resource obtained without communicating a corresponding transmission resource assignment to the network entity that allocates the resources transmission to the UE. In step 308, the BS detects the data after receiving the second batch of data transmission. Steps 307 to 309 perform activity similar to the activity in steps 304 to 306.
[00306] Figure 3J illustrates another modality of procedure for transmissions free of UL concession. Comparing Figure 3I with Figure 3J, Figure 3J shows a retransmission process. The retransmission process can be an ARQ or HARQ process. HARQ retransmission can be implemented with the use of Combination Seek (CC) or Incremental Redundancy (IR) according to the similar HARQ process used in LTE. Steps 300, 301, 302, 303 and 304 are similar to the steps in Figure 3I. In step 305, the BS detects the data after receiving the first batch of data transmission. The decryption attempt may fail, and the BS may not send an ACK after the first transmission.
[00307] In step 3041, the UE sends the retransmission data packet based on the transmission resources obtained above based on Figures 5A to 5D, and tables 7 to 10. In step 308, BS tries to decode the data after receive the retransmission of the first batch of the signal. Decoding can involve combining signals received from the retransmission and initial transmission to decode the data signal. If the data is successfully decoded, in step 3061, the BS can send an ACK to the UE. The UE may continue to retransmit the first batch of data
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73/134 using the next available resources according to the resource allocation in step 303, after step 3061, until an ACK is received, in case an ACK is not received after the initial transmission. The resource used from the initial transmission to the retransmissions can follow the resource and jump pattern of RS or assigned sequence. When the UE receives an ACK from the BS (for example, after step 3061), in step 310, the UE can interrupt the retransmission of the first batch of data.
[00308] In some situations, the first batch of data may have been successfully decoded, but the UE may not yet have received an ACK from BS due to a delay. In this case, the UE can still retransmit the first batch of data, as per step 3041, until an ACK is received. The BS can receive redundant data since the data was decoded in previous transmissions. In this case, the BS may choose to discard the received data signal after successful decoding of the same batch of data.
[00309] Figure 3K illustrates another modality of procedures for transmissions free of UL concession. Resource regions can be allocated as concession-based only or a mixture of concession-free and concession-based. There may be no dedicated concession-free region as a BS can determine the possibility of programming anything in a concession-free region. Alternatively or additionally, resource regions can be allocated to different applications. For example, an mMTC region can be different from a URLLC region, since mMTC regions can be divided into sub-regions for different levels of coverage. URLLC can be assigned to the grant-free / grant-based mixed region only when eMBB can always be programmed or in any region. Compared to Figure 3I, in step 3001 of Figure 3K, the UE receives signaling to instruct the UE to perform the concession free mode. In this situation, BS finds that the UE has a batch of small data packets to transmit, and selects the concession-free transmission feature to indicate that the UE must transmit in concession-free mode. In some modalities, BS can inform the UE to carry out the free concession mode and allocate the free transmission resources
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74/134 of concession at the same time, for example, step 3001 and step 302 can be signaled in one step. Steps 303, 304, 305, 306, 307, 308 and 309 are similar to the same steps in Figure 3I.
RS for transmission / retransmission identification [00310] In some of the examples above, a single RS is assigned to a UE. When an RS is also used to identify initial transmission / retransmission attempt (s) and a redundancy (RV) version, multiple RSs or an RS tuple can be assigned to a single UE. Initial streams and retransmissions can use different RVs. When the data is encoded, the encoded bits can be partitioned into different sets (which possibly overlap each other). Each set is a different RV. For example, some RVs may have more parity bits than other RVs. Each RV is identified by an RV index (for example, RV 0, RV 1, RV2, ... etc.). When an uplink transmission is sent using a particular RV, then only the encoded bits that correspond to that RV are transmitted. Different channel codes can be used to generate the encoded bits, for example, turbocodes, low density parity check codes (LDPC), polar codes, etc. An error control encoder in a UE can perform channel encoding. In order to decode the data, it may be necessary for a base station to know the RV index of the data being received on a concession-free uplink transmission, unless there is only one predefined RV.
[00311] For example, when only one RS is assigned to a single UE, p1 can be assigned to UE1. When two RSs are assigned to a single UE, p11 can indicate an initial transmission attempt and p12 can indicate any retransmission attempts. When more than two RSs are assigned to a single UE, p11 can indicate an initial transmission, and each subsequent retransmission attempt can be indicated by p12 (RV2), p13 (RV3), p14 (RV1), etc.
Fixed group assignment [00312] As shown in Figure 5F, the UE grouping may not change with the fixed group assignment scheme. Different resources 402 to 408 can be assigned to each group of UEs for each time interval
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75/134 within a frame. The RS can be reused between different groups, but it can be different between UEs in the same group to avoid collisions of RS. For example, UEs 1 to 6 can be assigned six different RS sequences, but UE 1 and UE 7 can be assigned the same RS sequence. UEs can be assigned to groups via broadcast channel or RRC signaling. Group-based signaling, such as group-based multicast DCI, can be used to change the groups' resource hop pattern. If a UE is assigned a fixed ID between each group, the UE can select its RS based on its ID between groups without extra signage. RSs assigned to each UE can follow a pseudo-random jump pattern so that two UEs cannot collide with each other. A seed or sequence can represent the RS jump pattern. When the number of UEs is greater than an available number that RSs can support, a BS can signal via broadcast or RRC signaling so that the remaining UEs can randomly select physical resources and RS hop patterns.
[00313] The fixed grouping feature pattern can also be generated using the cyclic shift method. And a first cyclic displacement number between the UE set i and the UE set i-1, in the time interval index k, is equal to a second cyclic displacement number between the UE set i and the UE set i-1, in the time index k-1, where k is any value from 1 to M, and i is 2 to N. In some embodiments, the set of UE i, in the time interval index k, has a cyclic displacement relationship with the set of UE i, at the time interval index k-1. This cyclic shift procedure ensures that the same UE has different frequency location indices at different time intervals in a frame, which provides gain of frequency diversity.
[00314] The fixed grouping feature pattern can also be generated using an equation-based rule, for example, the frequency location index of an UE = (UE index + time slot index + constant) mod (number of frequency partitions Μ). The difference between the equation of the fixed group resource standard (Figure 5F) and the UE regrouping resource standard (Figure 5A), described above, is that the UE pool index is always set to 1. Similarly to the standard of
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76/134 UE regrouping resource, described in Figure 5A, the resource pattern can be fixed from frame to frame or can change from frame to frame following a predefined pattern. For example, a frame number or cell ID can be added to the equation in a similar way to the method described for the UE regrouping feature pattern (Figure 5A).
[00315] Figure 4 illustrates a method modality 400 for assigning universal resources (for example, the MA hop pattern) for UL grant-free transmissions, as can be performed by a wireless device, such as a controller (for example, base station (BS), gNB, etc.). Referring to Figure 4, method 400 begins at step 410, in which a plurality of user equipment (UEs) is grouped by the BS into a first set of groups based on a predefined rule. The plurality of UEs is grouped based on a cyclic displacement scheme or a pseudo-random scheme to generate the time-frequency resource jump pattern, the plurality of UEs is grouped based on RS collision avoidance scheme to generate the pattern of RS jump. Based on the cyclical displacement scheme or pseudo-random scheme above, UEs can be grouped differently in each concession-free resource so that the same UEs do not always collide with each other. The cyclic displacement scheme can ensure that when the number of UEs is below a certain limit, two UEs do not belong to the same group on two free concession opportunities if the number of partitions is a prime number and greater than or equal to number of concession-free resource opportunities that an UE can access in a frame.
[00316] Based on the RS collision avoidance scheme above, the RS sequence assignment can be determined based on the time-frequency resource assignment results to avoid RS collisions on the same time-frequency resources. An agglomeration of RS can gradually be expanded from orthogonal pilot sequences to non-orthogonal pilot sequences and then a random pilot sequence agglomeration when more and more concession-free UEs enter the system. A mapping scheme index can be updated based on a change in at least one of the traffic loads, a number of the pluralities of UEs,
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77/134 RS resources or time-frequency resources, and the update can be transmitted to the UEs through at least one of the system information, a broadcast channel or a common control channel or a specific EU control channel . These and other aspects are described in more detail below.
[00317] As mentioned above, RS detection can be crucial for concession-free communications and an RS collision avoidance scheme for concession-free communications is desirable. It should be noted that, although RS is described as a preferred modality in this disclosure, the modalities described in this document are also applicable to other multiple access (MA) subscriptions. An MA subscription can include (but is not limited to) at least one of the following: a codebook / codeword, a sequence, an interleaver or mapping pattern, a demodulation reference signal (for example, a reference for channel estimation), a preamble, a spatial dimension and a power dimension. The term “pilot” refers to a signal that includes at least one reference signal. In some embodiments, the pilot may include the demodulation reference signal (DMRS), possibly in conjunction with a preamble guided by channel estimation or a preamble of random access channel (RACH similar to LTE).
[00318] In some modalities, when a new concession-free UE accesses the network or a concession-free UE leaves the network and releases the MA resource, the network or BS can update the predefined MA hop pattern based on the rules above.
[00319] Method 400 proceeds to step 420, in which the plurality of UEs is regrouped into a second set of groups. Subsequently, in which time-frequency resources are reallocated based on the second set of groups for a second time interval.
[00320] To take advantage of channel diversity and user traffic imbalance between resource units, UE (re) grouping with some resource jump can be considered for different transmissions if multiple resource units are available for each transmission slot . Namely, resource units can be configured in
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78/134 different frequency locations and in different time slots following some pre-configured jump patterns. The UEs can then have transmissions in different resource units in different time slots, resulting in (re) grouping of UEs in transmission slots. In this document, the different transmissions can be initial transmissions or retransmissions from a UE. Figures 5A to 5D are examples to demonstrate the idea, in which the number of UEs sharing the same resource units is limited, and the resource units in consecutive retransmissions have different frequency locations. One of the benefits of such a resource jump with UE (re) grouping scheme is to balance resource uses between different resource units in cases where non-uniform traffic loads occur between resource units.
Semi-static update of FG resources without reconfiguring UE cluster [00321] A network or BS can update the amount of free concession resources according to traffic load, number of UEs, RS resources or physical resources. Concession-free resources can include several predefined patterns, and each pattern can represent a certain amount of concession-free resources allocated among all resources with fixed pattern (s). In one embodiment, the configuration and update of a concession-free resource may indicate only one index of the standard used. BS can notify UEs of the grant-free resource assignment update through system information, a broadcast channel or a common control channel.
[00322] When the concession-free resources increase or decrease, the sequence can be punctured to maintain the collision-free allocation of RS and controlled collision UE grouping without signaling the individual UEs. As illustrated in Figure 5G, after halving concession-free resources, the number of opportunities can be halved, but the number of maximum collisions and RS resource requirements can remain the same. As shown in Figure 5G, since half of the concession-free resources are eliminated, the automatic resource jump sequence update can be:
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79/134 [00323] UE1: 0, 0, 0, 1 => 0, 0;
[00324] UE2: 0, 1, 1, 1 => 0, 1;
[00325] UE3: 1.0, 1.0 => 1, 1; and [00326] UE4: 1, 1, 0, 0 => 1, 0, where 0, 1 denote frequency location index, and p1, p2 denote different pilot sequences for UEs assigned with the same time frequency resource. In this way, the original resource jump strings “0, 0, 0, 1”, “0, 1, 1, 1”, “1, 0, 1, 0” and “1, 1, 0, 0” are for time slots 1, 2, 3 and 4, and the updated resource jump sequences “0, 0”, “0, 1”, “1, 1” and “1, 0” are for time slots 1 and 3.
The cyclic displacement scheme [00327] Grouping based on the cyclic displacement scheme is to group the time-frequency resource hop pattern, with the time-frequency resource hop pattern comprising M transmission resources allocated to N sets of UEs in the time slot index k, each set of UEs comprising M UEs, where the set of UEs i, in the time slot index k, has a cyclic displacement relationship with the set of UEs i -1, in the time interval index k. In some embodiments, the set of UE i, in the time interval index k, has a cyclical displacement relationship with the set of UE i, in the time interval index k-1, where k is any value from 1 to M, ei is 1 to N. In some embodiments, in which a first number of cyclic displacement between the set of UE i and the set of UE i-1, in the time interval index k, is different from a second number of cyclic displacement between the set of UE i and the set of UE i-1, in the time index k-1, where k is any value from 1 to M, and i is 2 to N. In some embodiments, in which a first cyclic displacement number between the set of UE i and the set of UE i-1, in the time interval index k, is equal to a second number of cyclic displacement between the set of UE ie and the set of UE i-1, in the time index k-1 , where k is any value from 1 to M, and i is 2 to N.
[00328] Figures 5A to 5D illustrate a modality of resource allocation and jump scheme based on the cyclic displacement scheme. Each block in Figures 5A to 5D, such as CTU 0 to CTU 19, represents a
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80/134 time-frequency feature. It should be noted that, although the time-frequency resources shown in Figures 5A to 5D are the same, in other modalities, the time-frequency resources allocated to each group of UEs may not be the same. The numbers 0 to 19 within each time-frequency resource block can denote UE group index. The time index 0 to 4 can represent time interval 1 to 4, the location index can have continuous time intervals or non-continuous time intervals. In one embodiment, the time location index 0 to 4 can correspond to subframes 0 to 3. In another mode, the time location index 0 to 4, can correspond to subframes 0, 2, 4 and 6, or other subframes in other modalities.
[00329] Referring to Figure 5A as an example, Figure 5A shows a predefined time-frequency location of 20 CTU regions in each frame. The 20 CTU regions can be indexed as CTU 0 to CTU 19, as shown in Figure 5A and Table 6. The size and time-frequency location of the CTU regions are known to both BS and GF UEs. If UEs know the CTU region index to access, they can see the location of time and physical frequency of the CTU region to access. Table 7 shows the predefined temperature frequency location table for different CTU regions shown in Figure 5A. Since the table is known to the UE before carrying out a concession-free transmission, the UE can see the location of the frequency of the CTU region if the CTU index is known. For example, a CTU 10 has a time-frequency location (t3, f1). The frequency time location can be an index of time slots, frequency bands or it can be a time interval with known starting and ending frequency and time bands with a known starting and ending bandwidth.
Table 6 - EU index map and transmission resource hop pattern
EU index time location index EU index time location index 0 1 2 3 0 1 2 3 1 CTU 0 CTU 6 CTU 12 CTU 18 11 CTU 0 CTU 8 CTU 11 CTU 19 2 CTU 1 CTU 7 CTU 13 CTU 19 12 CTU 1 CTU 9 CTU 12 CTU 15
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3 CTU 2 CTU 8 CTU 14 CTU 15 13 CTU 2 CTU 5 CTU 13 CTU 16 4 CTU 3 CTU 9 CTU 10 CTU 16 14 CTU 3 CTU 6 CTU 14 CTU 17 5 CTU 4 CTU 5 CTU 11 CTU 17 15 CTU 4 CTU 7 CTU 10 CTU 18 6 CTU 0 CTU 7 CTU 14 CTU 16 16 CTU 0 CTU 9 CTU 13 CTU 17 7 CTU 1 CTU 8 CTU 10 CTU 17 17 CTU 1 CTU 5 CTU 14 CTU 18 8 CTU 2 CTU 9 CTU 11 CTU 18 18 CTU 2 CTU 6 CTU 10 CTU 19 9 CTU 3 CTU 5 CTU 12 CTU 19 19 CTU 3 CTU 7 CTU 11 CTU 15 10 CTU 4 CTU 6 CTU 13 CTU 15 20 CTU 4 CTU 8 CTU 12 CTU 16
Table 7 - Example of a frequency location table for different CTU regions
Time Location Frequency locationTime Location Frequency location CTU 0 t1 f1 CTU 10 t3 f1 CTU 1 t1 f2 CTU 11 t3 f2 CTU 2 t1 f3 CTU 12 t3 f3 CTU 3 t1 f4 CTU 13 t3 f4 CTU 4 t1 f5 CTU 14 t3 f5 CTU 5 t2 f1 CTU 15 t4 f1 CTU 6 t2 f2 CTU 16 t4 f2 CTU 7 t2 f3 CTU 17 t4 f3 CTU 8 t2 f4 CTU 18 t4 f4 CTU 9 t2 f5 CTU 19 t4 f5
[00330] In some modalities, the frequency locations of CTU regions may not be predefined, but configured in a semi-persistent way. They can be signaled on the diffusion channel or common control channel. A UE can decode the information before accessing the network or at least before performing a concession-free transmission.
[00331] A subframe can typically represent a time slot for each grant-free resource, or a time slot in which a UE has at least one opportunity to access a grant-free resource. A subframe can be an LTE / 5G subframe, a time slot, a TTI, a few milliseconds, etc. The subframe or location index of
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82/134 time 0 to 3 shown in Figures 5A to 5D can be a logical index that can map to a different physical resource index. A table typically represents a period of time during which an RS resource or pattern can begin to repeat itself or change based on a predefined rule. The terms "subframe index", "time location index", "time index" and "time slot index" are used interchangeably throughout this disclosure.
[00332] A UE may have the ability to access one or more concession-free access opportunities at each time unit, for example, TTI, time slot or subframe. A physical resource or RS hop sequences that indicate the resource hop pattern and an RS index or RS hop pattern index can be assigned to a UE. The RS and resource jump patterns can include different RS and resource assignments for free concession opportunities within a frame and can be a repetitive pattern for each frame or any time / frequency unit defined in the frame structure. In mMTC, the pattern can differ within a superframe and can be repeated with each superframe. The pattern of attribution of RS and physical resource can also change in each frame / superframe, but it can follow a predefined rule that is known to both BS and UEs.
[00333] With the generation of resource jump pattern based on cyclic displacement, it is assumed that M is the number of partitions, such as frequency partitions (or the number of frequency location indices), and L is the number free concession opportunities for each UE per table (or the number of time location indices. In Figure 5A, M = 5 and L = 4. If M is a prime number and M> = L, when the number of UEs is less than or equal to M ² all UEs can be assigned to groups so that two UEs do not belong to the same group on two occasions within a frame. When the number of UEs is less than M * (M-1), all UEs can be assigned to groups so that two UEs do not belong to the same group on two occasions within a frame and also the same UE can be assigned to different frequency location indices at different time intervals in a frame.
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83/134 [00334] For the first M number of UEs or the first set of M UEs, M different permutations of EU indexes can be found, L permutations between the M different permutations can be chosen, and the L permutations chosen can be found. mapped to the M frequency locations of the L time location indexes. Different permutations can be generated by cyclically shifting a permutation pattern. For example, EU indices 1 to 5 in order can include M distinct permutations {1 2 3 4 5}, {5 1 2 3 4}, {4 5 1 2 3}, {3 4 5 1 2}, and {2 3 4 5 1}, which are generated by cyclically displacing the permutation {1 2 3 4 5} with cyclic displacement number 0, 1, 2, 3, 4, respectively. This cyclic shift procedure ensures that the same UE has different frequency location indices at different time intervals in a frame, which provides gain of frequency diversity.
[00335] In general, any L of the M permutations can be used for the generation of a concession-free resource pattern. In this example, only the first four permutations are used for the concession-free opportunities within a frame since L = 4. The first four permutations {1 2 3 4 5}, {5 1 2 3 4}, {4 5 1 2 3} and {3 4 5 1 2} can be used for time intervals 1, 2, 3 and 4, respectively. The order of the indices in each permutation corresponds to the frequency location indices. For the next M UEs or the second set of M UEs, the previous allocation of M UEs can be cyclically shifted by the subframe index or time location index in relation to the locations of the first set of M UEs in the same subframe: {67 89 10}, {9 10 6 7 8}, {7 8 9 10 6} and {10 6 7 8 9}. Similarly, the next set of M UEs for each subframe or time location can be shifted cyclically by the subframe index in relation to the previous set of M UEs {11 12 13 14 15}, {13 14 15 11 12}, { 15 11 12 13 14} and {12 13 14 15 11}. The mapping of the last M UEs or the fourth set of UEs can therefore be {16 17 18 19 20}, {17 18 19 20 16}, {18 19 20 16 17} and {19 20 16 17 18} for four time slots. It should be noted that cyclic displacement by the subframe index is used as a preferred modality in this disclosure, and another number can be used for the cyclic displacement procedure in another modality.
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84/134 [00336] UEs of the same location from the sets for a corresponding subframe can be grouped into a group and assigned to the same time-frequency resource. For example, in time slot 1, UEs 1, 6, 11 and 16, in the first location of each set, are grouped and the CTU 0 time-frequency resource is assigned. It should be noted that the terms “set” and “group” are used in this document to differentiate the permutation of UEs and groups of UEs for resource allocation. For example, UEs 1 to 5 are in the first set of UEs, but in different groups for resource allocation. Referring to time slot 1, 2, 3 and 4 in Figure 5A as an example, compared to time slot 1, the number of cyclic displacement of the first set of UEs from UEs 1 to 5, in time slot 2 , is 1; compared to time slot 2, the number of cyclic displacement of the first set of UEs from UEs 1 to 5, in time slot 3, is 1; compared to time slot 3, the number of cyclic displacement of the first set of UEs UEs 5 through 5, in time slot 4, is 1. Compared to time slot 1, the number of cyclic displacement of the second set of UEs UEs 6 to 10, in time slot 2, is 2; compared to time slot 2, the number of cyclic displacement of the second set of UEs from UEs 6 to 10, in time slot 3, is 2; compared to time interval 3, the number of cyclic displacement of the second set of UEs UEs 6 to 10, in time interval 4, is 2. In comparison to time interval 1, the number of cyclic displacement of the third set of UEs UEs from UEs 11 to 15, in time slot 2, is 3; compared to time slot 2, the number of cyclic displacement of the third set of UEs from 11 to 15 UEs, in time slot 3 is 3; compared to time interval 3, the number of cyclic displacement of the third set of UEs 11 to 15, in time interval 4, is 3. In comparison to time interval 1, the number of cyclic displacement of the fourth set of UEs from 16 to 20 UEs, in time slot 2, is 4; compared to time slot 2, the number of cyclic displacement of the fourth set of UEs from UEs 16 to 20, in time slot 3, is 4; compared to time slot 3, the fourth set of UEs from 16 to 20 UEs, in time slot 4, is 4.
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85/134 [00337] Compared to Figure 5A, the difference for Figure 5B is the first to the fourth set of UEs of clustering UEs, in time slot 4, are moved to time slot 2, the default grouping of UEs, in time slot 2 is moved to time slot 3, the pattern of grouping of UEs, in time slot 3 is moved to time slot 4. Based on this alternative design, the hop pattern of time-frequency resource in time slots 1 to 4 can still satisfy the requirement that the same CUT cannot be allocated to any two UEs in time slots 1 to 4. Figure 5B shows just one example, however, it is understood that the pattern of grouping UEs in one time slot can be moved to another time slot.
[00338] Physical resources can be assigned to an UE that provides a unique definition of concession-free resources (FG) used for each frame. The time-frequency resources in a frame can be partitioned for this purpose. For example, an entire uplink transmission bandwidth can be divided into a number of partitions for a period of time, such as each time slot in a frame, and each time-frequency resource block can be assigned to EU (s). The pattern of physical resource allocation may differ within a frame and may be repeated in each frame. The pattern of physical resource allocation may also change in each frame, but it can follow a predefined rule that is known to both BS and UEs. For example, this can be implemented by adding a frame number, as described, in more detail, later in this disclosure. In comparison to Figure 5A, the difference in Figure 5C is that the first to fourth set of UEs grouping pattern UEs in time slots 1 to 4 of frame n have the same grouping pattern in time slots 1 to 4 of table n + 1. Figure 5C provides only the example of the same grouping pattern in a different frame, in the alternative modality, the different grouping pattern in the different frame can be adopted, as an example, the frame does not adopt the grouping pattern of Figure 5A, and the Table n + 1 adopts the grouping pattern of Figure 5B.
[00339] Figure 5C also illustrates a resource allocation scheme for automatic retransmissions until an ACK is received,
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86/134 as discussed above. As shown, data arrives for UE 1 to transmit before time index 1 of frame n, and UE 1 performs an initial data transmission on time index 1 of frame n using frequency index resource 1 In time index 2 and 3 of frame n and in time index 0 of frame (n + 1), UE 1 performs the first, second and third retransmission of data using resources with a frequency index of 2 , 3 and 0, respectively. UE 1 stops retransmission after receiving an ACK at frame time index 1 (n + 1).
[00340] Similar to Figure 5C, if the UE arrives between time index 1 and time index 2, UE1 can perform an initial data transmission at time index 2 of frame n using resource with frequency index 2, UE 1 can then perform the first and second retransmission (or repetition) of the data using the resource with time index 3, frequency index 3 of frame n and time index 0, index frequency 0 of frame n + 1, respectively. The UE can interrupt retransmission / retry when the transmit / retry number reaches K or an UL grant that indicates that a retransmission is received and, optionally, the retry can be interrupted if the UE receives an ACK from BS.
[00341] There are several advantages of the UE regrouping scheme with resource jump pattern defined in Figures 5A to 5D over the fixed clustering scheme (such as the resource standard defined in Figure 5F) when combined with the retransmission scheme of EU. First, as can be seen in Figure 5C, resource units on consecutive retransmissions to the same UE have different frequency locations, this provides a gain of frequency diversity compared to the case where transmission / retransmission used the same frequency band . Second, the design in all Figures 5A to 5D and 5F has limited the number of potential collisions in each CTU to a maximum number (4 in the example in Figure 5A to 5D and 5F for 20 UEs). Third, the UE regrouping scheme can prevent the continuous transmission of two or more UEs in different transmission attempts and retransmissions of the same data. For example, UE 1 and UE 10 can perform concession-free initial transmission on the same
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CTU 6 in Figure 5C. In the next time slot, the retransmission of UE 1 jumped to CTU 12 while the retransmission of UE 10 jumped to CTU 13, thus avoiding continuous collision of the two UEs in the next time interval. For a fixed UE clustering scheme, as defined in Figure 5F, two UEs that collide in the initial transmission can continuously collide in the retransmission. Fourth, UE regrouping can better handle user traffic imbalance. For example, in Figure 5A to 5D, if EU groups at CTU 0 (EU 1, EU 6, EU 11, EU 16) all have very high data arrival rates compared to other UEs that they may collide with with high probability, in the next slot, due to the regrouping of UEs, the four UEs will be redistributed to different groups, thereby reducing the probability of collision. Therefore, cyclic displacement and other methods used to project the resource hop pattern aim to reduce the likelihood that two UEs will be grouped together in multiple locations at consecutive or close time intervals.
[00342] Figure 5C shows an example of the process of Figure 3B with the resource pattern defined in Figure 5A. In Figure 5C, two frames with a repeated feature pattern for each frame are shown. In this example, from resource allocation, UE 1 found that the resource jump sequence or pattern for UE 1 is CTU 0, CTU 6, CTU 12, CTU 18. The first batch of data for UE1 arrives between the time location index 0 and 1. Therefore, the next time slot for UE 1 is time location 1. Therefore, UE 1 performs continuous transmission / retransmission of first batch of data in CTU resource region 6 of Table n , CTU 12 of Table n, CTU 18 of Table n and CTU 0 of Table n + 1. UE 1 then receives an ACK from TRP between time location 0 and 1 in frame n + 1. As a result, UE 1 stops any additional retransmission of the first batch of data.
[00343] To generate a resource allocation pattern, such as that defined by Figure 5A, two methods are described above: a cyclic displacement method and a pseudo-random method. UEs can be grouped differently in each concession-free resource so that the same UEs do not always collide with each other. The method of
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88/134 cyclical displacement can ensure that two UEs do not belong to the same group on two free concession opportunities if the number of partitions is a prime number and greater than or equal to the number of free concession resource opportunities that a UE can access in a table when the total number of UEs is below some limit.
[00344] Figure 5D illustrates an exemplary resource group jump and regrouping of EU resources along retransmissions, compared to Figures 5A, 5B and 5C, the difference for Figure 5D is that CTU 5 occupies the resource frequency fn, and not frequency resource f1 in Figure 5A; CTU 15 occupies the frequency resource fn, and not the frequency resource f1 in Figure 5A. The use of different frequency features can provide some gain in frequency diversity when combined with the retransmission scheme.
Generation of resource jump sequence based on pseudo random method [00345] The generation of resource jump pattern can also be generated using the pseudo random scheme. The pseudo-random method means that, once determined, the grouping can be fixed later. A pseudo-random method can be generated as follows. After the first M UEs are assigned to a group using different permutations, the 2nd and following sets of UEs may collide with the first set of M UEs may be assigned in the same order as the first set of UEs to first subframe or time frame in a frame. The first set of UEs are 1-M UEs, the second set of UEs are UEs (M + 1) - (2M), the third set of UEs are UEs (2M + 1) - (3M), etc. For the second and each subsequent subframe, the frequency partition can be selected at random for one UE to avoid all other UEs that have been grouped together with the UE before. In addition, the partition that an UE has chosen must also exclude all partitions that previous UEs have selected in the same set. For example, since UE 8 and UE 3 can access the same concession-free resources in the first subframe, UE 8 will avoid selecting the same partition as UE3 in the second subframe. In addition, UE 8 may not be placed in groups with UEs 6 and 7 as
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89/134 that they are in the same set.
[00346] In another mode, the resource jump sequence based on a pseudo-random method can be generated in the following modes. For a set of M UEs as defined above. BS can list all possible permutations of the EU index. For example, for the first set of M users, in Figure 5A, where M = 5, one can have permutations {1,2,3,4,5}, {1,3,5,4,2), {2, 1, 4, 3, 5), {3,4, 5, 2, 1), {5, 1, 4, 2, 3} ... etc. Then, the BS can randomly select L permutations among all possible permutations to be mapped into the L subframes in the resource allocation pattern (for example in Figure 5A) for each time location index. The RS can be determined by the same method described above, either fixed or with jump, but with a guarantee that there is no collision of RS with other UEs in the same group. The BS can then send the resource and RS jump sequences determined from the resource cluster mapping to the UE.
[00347] In another modality, the above pseudo-random method can be applied over the cyclic displacement method when the number of UEs is greater than a limit. This is due to the fact that, when the number of UEs is greater than a certain number, it may not be possible to guarantee that two UEs will not access the same concession-free resource twice within a frame. In this case, it may be better to apply the pseudo-random method when the number of UEs is greater than a limit. For example, in Figure 5A, the pseudo-random scheme can be applied when the number of UEs is greater than 20.
RS standard [00348] The RS sequence assignment can be determined based on the time-frequency resource assignment results to avoid RS collisions on the same time-frequency resources. An RS can be assigned to each set of UEs for an entire frame, as shown in Table 8, for example, RSs P1 to P6 can be assigned as: P1 for UE1 to 5, P2 for UE6 to 10, P3 for UE 11 a 15, P4 for UE16 to 20, P5 for UE21, and P6 reserved for concession-based communications (GB). Alternatively, the same RS can still be assigned to each set of
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UEs, but the RS can jump subframes within a frame, as shown in Table 9. P1 to P6 can represent the same RS, different RS jump patterns or multiple RS tuples (for example, for relay identification). Thus, for the RS index assigned to different UEs in the same physical resource, the RSs can be different, for example, using an RS index permutation for each transmission time interval (TTI). For example, the jump rates from RS 1 to 6 can mean: P1: 1,2, 3, 4; P2: 2, 3, 4, 5; P3: 3, 4, 5, 6; P4: 4, 5, 6, 1; P5: 5, 6, 1.2; P6 (reserved for GB or for an EU GF to access all opportunities): 6, 1, 2, 3.
Table 8 - RS index table (fixed RS in a frame)
EU index time location index EU index time location index 0 1 2 3 0 1 2 3 1 p1 p1 p1 p1 11 P3 P3 P3 P3 2 p1 p1 p1 p1 12 P3 P3 P3 P3 3 p1 p1 p1 p1 13 P3 P3 P3 P3 4 p1 p1 p1 p1 14 P3 P3 P3 P3 5 p1 p1 p1 p1 15 P3 P3 P3 P3 6 P2 P2 P2 P2 16 p4 p4 p4 p4 7 P2 P2 P2 P2 17 p4 p4 p4 p4 8 P2 P2 P2 P2 18 p4 p4 p4 p4 9 P2 P2 P2 P2 19 p4 p4 p4 p4 10 P2 P2 P2 P2 20 p4 p4 p4 p4
Table 9 - RS index table (with RS jump)
EU index time location index EU index time location index 0 1 2 3 0 1 2 3 1 p1 P2 P3 p4 11 P3 p4 p5 p6 2 p1 P2 P3 p4 12 P3 p4 p5 p6 3 p1 P2 P3 p4 13 P3 p4 p5 p6 4 p1 P2 P3 p4 14 P3 p4 p5 p6
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5 p1 P2 P3 p4 15 P3 p4 p5 p6 6 P2 P3 p4 p5 16 p4 p5 p6 p1 7 P2 P3 p4 p5 17 p4 p5 p6 p1 8 P2 P3 p4 p5 18 p4 p5 p6 p1 9 P2 P3 p4 p5 19 p4 p5 p6 p1 10 P2 P3 p4 p5 20 p4 p5 p6 p1
[00349] The examples above show RS assignment within a frame. RS assignment can change from frame to frame while preventing RS collisions. As an example, each UE can add a frame number mod the total number of RS to the index. As another example, the assignment of RS or RS index can skip frames, for example, RS index = index assigned to frame 0 + (frame number) + (cell ID) mod (total available RS). The terms “frame number” and “(cell ID) mod (total RS available)” are optional in this equation. The term "frame no." Denotes frame index in this document, and mod denotes a remaining operator. Alternatively, the RS index can jump subframes or time intervals within a frame, for example, to ensure that there is no RS collision at each GF opportunity. For example, RS index = index assigned to frame 0 + (frame number) + (cell ID) mod (total RS available) + (subframe number) mod (total RS available), where “no. of frame "," (cell ID) mod (total RS available) ", and" (subframe number) mod (total RS available) "are optional.
[00350] The time allocation index / subframe of the resource allocation pattern can be shuffled to optimize the use of time-frequency resources or communication efficiency, for example, to maximize frequency diversity. For example, the original temperature frequency assignment result obtained from the above method, as shown in Figure 5A can be scrambled to obtain the result shown in Figure 5B. As in the example shown in Figures 5A and 5B, allocation result in time slot 2, in Figure 5A is moved to time slot 3, in Figure 5B, and the allocation result in time slot 4, in Figure 5A, is moved to time slot 2 in Figure 5B. Alternatively or additionally, the frequency location index that corresponds to groups in the same time interval can be scrambled. For example, the
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92/134 frequency 0 and frequency index 1, in the same time interval, can be switched. Thus, in Figure 5B, the results of assigning CTLIs can be exchanged.
[00351] The above time-frequency allocation method can be represented in an equation, such as, for example, frequency location index of an UE = (UE index + (UE set index) * slot index time + constant) mod (number of frequency partitions M), where the set index of UE = floor ((index of EU-1) / M) +1, and the time location index and the index of frequency location starts at 0. For example, for UE 12 and M = 5, UE set index = 2. In time location index 2, using constant = -1, then the frequency index of UE_12 = (12 + 3 * 2 -1) mod 5 = 2, as shown in Figure 5A.
[00352] In another embodiment, the time slot or time location index may be a subframe index or some other time index. In yet another embodiment, a frame index can be added and the above equation: frequency index of a UE = (UE index + (UE set index) * time slot index + frame index + constant) mod ( number of frequency partitions M). In yet another embodiment, a cell ID can be added and the above equation can be: frequency location index of a UE = (UE index + (UE set index) * time slot index + cell ID + constant) mod (number of frequency M partitions). After the equation, the time slot or frequency index can be scrambled, as mentioned above. Signaling can be very resource-efficient as BS may only need to flag an EU index. The result of time-frequency allocation can be generated by the UE from the equation when the equation is a priori knowledge for the UE.
[00353] From the (L + 1) th concession free opportunity or time intervals, the grouping of UEs can be repeated as in the first L free concession opportunities. In one embodiment, the grouping can be reshuffled for resource mapping to achieve better frequency diversity.
[00354] Referring back to Figure 3A, in step 302, BS sends
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93/134 a UL transmission resource assignment to the UE after selecting the transmission resource to be used for the UE. In this mode, there are 3 options for allocating the transmission assignment.
[00355] Option 1: the UL transmission resource allocation includes an UE index to indicate the transmission resource hop pattern assigned to the UE. In step 301, BS selects transmission resources for the concession-free UE which may include allocating at least one of the physical and RS resources to the UE. BS can allocate transmission resources according to a resource allocation standard. The resource allocation pattern can include at least one of a physical resource allocation pattern and an RS allocation pattern. A physical resource allocation pattern can define the CTU regions that different UEs can access. Figure 5A shows an example of such a pattern of physical resource allocation. In Figure 5A, the index within a CTU region box refers to the UEs that are allowed to access that CTU region. For example, UEs with assigned index 1, 6, 11, 16 can access CTU 0. Table 8 shows an example of an RS allocation pattern. In one embodiment, in step 302, BS only assigns a UE index to a UE and the UE can see the CTU regions that the UE can access and RS to be used from the resource allocation pattern and allocation pattern of RS based on Table 10. Table 4 provides the table that defines the mapping of the UE index to the RS jump pattern and resource derived from Figure 5A and Tables 8 and 9. For example, if it is assigned to a UE an index of UE 5, the UE can access the CTU regions: CTU 4, CTU 5, CTU 11, CTU 17 and with the use of RSs p1, p1, p1, p1, respectively. Once the UE determines the CTU index that the UE can access, the UE can use the predefined or flagged CTU location table (for example, Table 7) to obtain time-frequency of the physical resources it can access. Similarly, the UE can see the RS sequence to be used based on the RS index.
Table 10 - Mapping of EU index and RS jump pattern and resource
EU index time location index EU index time location index 0 1 2 3 0 1 2 3
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1 CTU 0, p1 CTU 6, p1 CTU 12, p1 CTU 18, p1 11 CTU 0,P3 CTU 8,P3 CTU 11,P3 CTU 19,P3 2 CTU 1, p1 CTU 7, p1 CTU 13, p1 CTU 19, p1 12 CTU 1,P3 CTU 9,P3 CTU 12,P3 CTU 15,P3 3 CTU 2, p1 CTU 8, p1 CTU 14, p1 CTU 15, p1 13 CTU 2,P3 CTU 5,P3 CTU 13,P3 CTU 16,P3 4 CTU 3, p1 CTU 9, p1 CTU 10, p1 CTU 16, p1 14 CTU 3,P3 CTU 6,P3 CTU 14,P3 CTU 17,P3 5 CTU 4, p1 CTU 5, p1 CTU 11, p1 CTU 17, p1 15 CTU 4,P3 CTU 7,P3 CTU 10,P3 CTU 18,P3 6 CTU 0,P2 CTU 7,P2 CTU 14,P2 CTU 16,P2 16 CTU 0,p4 CTU 9,p4 CTU 13, p4 CTU 17, p4 7 CTU 1,P2 CTU 8,P2 CTU 10,P2 CTU 17,P2 17 CTU 1, p4 CTU 5, p4 CTU 14, p4 CTU 18, p4 8 CTU 2,P2 CTU 9,P2 CTU 11,P2 CTU 18,P2 18 CTU 2, p4 CTU 6, p4 CTU 10, p4 CTU 19, p4 9 CTU 3,P2 CTU 5,P2 CTU 12,P2 CTU 19,P2 19 CTU 3, p4 CTU 7, p4 CTU 11, p4 CTU 15, p4 10 CTU 4,P2 CTU 6,P2 CTU 13,P2 CTU 15,P2 20 CTU 4, p4 CTU 8, p4 CTU 12, p4 CTU 16, p4 [00356] Na hey slap 301, BS pod and choose allocate resources to the UE
based on the order in which the UE accesses the system. For example, the first concession-free EU accessing the system can be assigned an EU index 1 in the resource allocation pattern. The second concession-free EU that accesses the system can be assigned an EU 2 index, etc. When a concession-free UE is no longer in the connected state or no longer requires concession-free resources, BS can reassign the same index that was previously assigned to that UE to a new concession-free UE that is connected to the system. In some modalities, BS or TRP may allocate resources on the basis of other orders. For example, BS can choose, at random, an index among the UE indexes, which is below a limit and which has not been used before and assign it to a new UE connected to the system.
[00357] Option 2: the allocation of UL transmission resources includes
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95/134 a CTU index to indicate the transmission resource hop pattern assigned to the UE. In step 301, the BS selects the transmission resource for a concession-free UE, the TRP or BS can signal the index of the CTU regions that a UE can access. From the CTU index, the UE can obtain the physical location of the resources that it can access. In addition, BS can signal the RS index to the UE directly, the CTU index and the RS index can be ported in the same transmission resource assignment or be sent by separate transmission resource assignment. For example, according to the resource allocation pattern, defined in Figure 5A, instead of assigning index 5 to the UE, BS can directly signal the index of CTU regions: CTU 4, CTU 5, CTU 11 , CTU 17. The index of CTU regions that a UE can access can be termed a resource hop pattern or a resource hop sequence. Similarly in the example, the BS can also signal the real RS index p1, p1, p1, p1, see the RS index used to access the 4 CTU regions, respectively. The RS index used to access all CTU regions for a UE can be called an RS hop pattern or an RS hop sequence. In some modalities, the RS index for each EU can be fixed over the entire table. In that case, BS may choose to signal a single RS p1 index for all CTU regions for UE 5. In some embodiments, TRP may signal some parameters of the actual RS sequence to be used by the UE. For example, when a Zadoff Chu sequence is used, the BS can signal the root index and cyclic offset to be used for the Zadoff Chu sequence.
[00358] For the resource allocation pattern, CTU regions can also be indexed by two dimensional indices, which typically include frequency and time location index and partitioned based on actual time and frequency locations. For example, in Figure 5A, the 20 CTU regions can be divided into 4 sets of resource regions with time location index 0 to 3. Each time location index can contain 5 CTU regions that are additionally indexed by the frequency location index 0 to 4. The CTU 4 can correspond to a time location index 0 and a frequency location index 4, which
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96/134 correspond to a physical resource location of time slot 1 and frequency band f5. The time location index can correspond to different subframes, different time intervals, etc. In this disclosure, time location index, time slot index and subframe index can be used interchangeably. The frequency location index can correspond to different frequency bands. The time location index and the frequency location index can be logical indexes and can have different mappings for the actual physical time frequency resources.
[00359] As described above, in some modalities, CTLIs that have the same frequency location or time location indices may not necessarily be aligned with actual physical time or frequency locations. The same frequency location index at different time location indexes can correspond to different physical frequency bands. This has the advantage of providing frequency diversity gain through resource frequency hopping when the two CTU regions are assigned to the same UE.
[00360] Option 3: the allocation of UL transmission resource includes frequency location index which corresponds to each time location index of the CTU regions, which indicates the transmission resource hop pattern assigned to the UE. In step 301, the BS selects the transmission resource for a concession-free UE, the TRP can signal the frequency location index of the CTU regions that a UE can access at each time location index. For example, according to the resource allocation pattern, defined in Figure 5A, instead of assigning index 5 to the UE, the TRP can directly signal the frequency location index sequence of the CTU regions that the UE can access at each time location index: 4, 0, 1,2. The mapping between the UE index and the CTU regions frequency location index in each time location index derived from Figure 5A is shown in Tables 7 to 10. This frequency index sequence of the CTU regions that a UE can access can also be called a resource jump pattern or a resource jump sequence.
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97/134 [00361] Figure 5E illustrates a modality of space expansion scheme of RS and UE. In this example, the RS allocation space expands, gradually, based on pilot sequences or RS sequences. Specifically, the RS allocation space can expand from orthogonal pilot sequence space 506 first to non-orthogonal pilot sequence space 504 and, finally, to a random pilot sequence cluster 502.
[00362] A number of first registered UEs can be assigned to different resources so that two UEs cannot access the same concession-free resources at the same time, and this scheme in space 508 may be similar to a semi-persistent programming scheme (SPS ) free of containment. In this case, the same RS or different RSs can be assigned to each UE, and there may be no data collision or RS. The assignment of RS and resource in Figure 5A, can achieve this goal. For example, if only 5 concession-free UEs are connected to the system, BS can assign EU index 1 to 5 to the 5 UEs according to the resource allocation pattern in Figure 5A. In this situation, free concession access is free of contention since two UEs cannot access the same region. In addition, UE resources are jumping in different frequency bands, thereby providing diversity gain for retransmissions.
[00363] The RS space can expand to orthogonal RS space 206 when the total number of UEs exceeds a limit, which typically corresponds to the number of UEs that the contention-free SPS scheme can support. In this case, multiple UEs can be assigned to the same concession-free resource and the UEs that access the same concession-free region can be assigned different orthogonal RSs. The RS space can expand to non-orthogonal RS space when the total number of UEs exceeds what orthogonal pilot sequences can support. New non-orthogonal RS strings can be assigned to UEs that have just entered a connected state. The non-orthogonal RS space can still guarantee that there is no pilot collision. When the number of UEs exceeds that the non-orthogonal pilot sequence can support or when the UEs are unaware of their current RS assignment, a UE can randomly select an RS from
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98/134 of random RS space 502 and random jump between available RSs.
[00364] As an example with five frequency partitions, as shown in Figure 5A, with a contention-free SPS scheme, a maximum of five UEs can be supported with an orthogonal sequence (OS). A different frequency resource block can be assigned to each UE. All five UEs within the SPS 508 space can be assigned the same RS, a fixed RS jump index or different RSs. With six cyclic displacements (CS) and a Zadoff Chu sequence root, six orthogonal pilot sequences can be obtained, and a maximum of thirty UEs can be supported in the orthogonal RS 506 space using six orthogonal pilot sequences without RS collision , as per ultra-reliable low-latency communications (URLLC). With six orthogonal pilot sequences and thirty roots available, one hundred and eighty non-orthogonal pilot sequences can be obtained. A maximum number of nine hundred UEs can be supported in the 504 non-orthogonal RS space without RS collisions, as in URLLC or massive machine-type communications (mMTC). With a scheme in which a BS assigns RS strings to UEs, when UEs are no longer active, for example, inactive for a predefined period of time, the BS can release the assigned RS strings and jump resources to a new connected UE . The random RS 502 space can support any number of UEs, for example, for massive connections, with physical resource selection or random RS, as in mMTC. The non-orthogonal pilot sequences can be equipped with possible RS collisions. Random RS space 502 can support UEs in an unconnected state, as it can be more difficult for the BS to assign RS sequence to UEs in an unconnected state.
[00365] When a UE performs initial access, at least one of the time frequency resources and RS jump pattern indexes can be assigned to the user who provides a unique definition of RSs and concession free resources (FG) used for each frame . Frequency and time resources are examples of physical resources. Physical resources and MA signatures or RS strings can be assigned through upper layer signaling, such as RRC signaling or during initial access procedure, for example, during random access response (RAR) of
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99/134 initial access or random access procedure. A resource jump index or RS sequences can be assigned to an active UE during the initial access or radio resource control connection (RRC) stage.
[00366] The most active UEs can be kept within the orthogonal pilot sequence space. The RS assignment can jump over time-frequency resources or update based on UE activities. The RS jump pattern can be called an RS jump sequence or RS jump pattern; the physical resource jump pattern for a UE can be called a resource jump pattern or resource jump sequence. The selections of RS and UE resources can be updated, dynamically, through downlink control information (DCI) or group DCI.
[00367] Figure 6A shows example formats for the message that are illustrated in dotted bubble 124. In example 126, the message includes a signature of MA 152, in detail in the above modality, the signature of MA is RS, as an example , the RS index to indicate the pilot. As well as data 154 and an indication of the identity of the UE: EU ID 156 (or EU index). Data 154 and UE ID 156 are encoded together, and a corresponding cyclic redundancy check (CRC) 158 is generated and included in message 126. In some embodiments, UE ID 156 is instead embedded in the CRC 158, which can reduce the load size. In another example, the MA 152 subscription may be optional if the subscription has been previously confirmed for use. Example 128 is a variation of example 126 where EU ID 156 is encoded separately from data 154. Therefore, a separate CRC 161 is associated with EU ID 156. In some embodiments, EU ID 156 can be within one or more other headers, in which case CRC 161 is for headers where CRC 161 is located. In example 128, EU ID 156 can be transmitted with a lower modulation and coding scheme (MCS) than data 154 in order to facilitate decoding of EU ID 156. There may be situations where the EU ID 156 is successfully decoded, but data 154 is not successfully decoded.
[00368] Referring to Figure 3A, the first batch of data can
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100/134 be transmitted in a form that can contain only one MA signature which is sent followed by a normal message that includes both an MA signature and data information. Figure Figure 6B shows another group of exemplary message formats sent by UEs on a concession-free uplink transmission on an uplink channel. In example 326, the message includes EU ID 356 and a combination of data and one or more pilots 354.
[00369] In example 328, a first message includes a preamble 358 and a second message includes data and at least one pilot 354. In a particular example where the UE is using URLLC, preamble 358 can be a string assigned to the UE of URLLC for dedicated use where preamble 358 has a one-to-one mapping relationship with UE ID 356 to the URLLC UE. The first message can be transmitted separately from the data and at least one pilot 354. The BS receives the first message and identifies the UE URLLC based on the mapping relationship. The BS receives the second message, detects the pilot in the second message, performs channel estimation using the detected pilot and then decodes the data.
[00370] In another embodiment, preamble 358 can be linked to a dedicated UE connection ID in which preamble 358 has a one-to-one mapping relationship with the UE connection ID. The UE connection ID can be a dedicated Cellular Radio Network Identifier (C-RNTI) or an assigned C-RNTI.
[00371] Such a scheme can also be applicable to other services, such as eMBB.
[00372] In example 329, the EU ID 356 can be transmitted separately from the data and at least one pilot 354. A first message includes the EU ID 356 and a second message includes data and pilot 354.
[00373] BS receives the first message and identifies the EU ID. The BS then receives the second message, detects the pilot in the second message, performs channel estimation using the detected pilot and then decodes the data.
[00374] In a deployment of example 329, EU ID 356 can
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101/134 be transmitted separately from data and pilot 354 and the EU ID message is protected by a Cyclic Redundancy Code (CRC). The first message can be transmitted using a different numerology than the second message. The symbols used for the EU ID message 356 may use different numerology than the symbols used for the data and pilot 354. In a particular embodiment, the symbols used for the EU ID message 356 may use a larger Cyclic Prefix (CP) for the EU ID message 356 than the symbols used for the data and pilot 354.
[00375] In some deployments, the EU ID 356 of example 329, the preamble 358 of example 328 or the pilot, included in the examples, can also carry staging status information as well as MCS. This may allow the network to decide on an appropriate resource size when granting UL for future UE transmissions.
[00376] Figure 7 is a block diagram of a 700 computing system that can be used to deploy the devices and methods revealed in this document. For example, the computing system can be any EU entity, access node (AN), MM, SM, UPGW, AS. Specific devices can use all the components shown or only a subset of the components, and levels of integration can vary from device to device. In addition, a device can contain multiple instances of a component, such as multiple processing units, processors, memories, transmitters, receivers, etc. The computing system 700 includes a processing unit 702. The processing unit includes a central processing unit (CPU) 714, memory 708 and can additionally include a mass storage device 704, a video adapter 710 and a I / O interface 712 connected to a 720 bus.
[00377] The 720 bus can be one or more of any type among several bus architectures, including a memory bus or memory controller, a peripheral bus or a video bus. The CPU 714 can comprise any type of electronic data processor. The 708 memory can comprise any type of non-transitory system memory, such as static access memory
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102/134 random (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), read-only memory (ROM) or a combination thereof. In one embodiment, the 708 memory can include ROM for use at startup, and DRAM for program and data storage for use while executing programs.
[00378] Mass storage 704 can comprise any type of non-transitory storage device configured to store data, programs and other information and to make data, programs and other information accessible via the 720 bus. Mass storage 704 can comprise, for example, one or more of a solid state drive, hard disk drive, magnetic disk drive or optical disk drive.
[00379] The video adapter 710 and the I / O interface 712 provide interfaces for coupling external input and output devices to the processing unit 702. As illustrated, examples of input and output devices include a display 718 coupled to the video adapter video 710 and a mouse / keyboard / printer 716 coupled to the I / O interface 712. Other devices can be coupled to the processing unit 702, and more or less interface cards can be used. For example, a serial interface, such as Universal Serial Bus (USB) (not shown) can be used to provide an interface for an external device.
[00380] Processing unit 702 also includes one or more network interfaces 706, which may comprise wired links, such as an Ethernet cable or wireless links to access nodes or different networks. Network interfaces 706 allow processing unit 702 to communicate with remote units over networks. For example, 706 network interfaces can provide wireless communication through one or more transmit / transmit antennas and one or more receive / receive antennas. In one embodiment, processing unit 702 is coupled to a local area network 722 or to a wide area network for data processing and communications with remote devices, such as other processing units, the Internet or remote storage facilities.
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103/134 [00381] Figure 8 illustrates an example of a concession-free time-frequency transmission resource that can be used for multiple UEs. The numbers 1 to 20, in the blocks in Figure 8, refer to twenty separate UEs. In the time dimension, the concession-free transmission resource, in Figure 8, is a 10 ms frame containing 5 time intervals, where each time interval corresponds to 2 subframes or 2 ms. In the frequency dimension, the transmission resource occupies 5 frequency ranges. There are 5 RB in each frequency range. Therefore, there are a total of 25 resource blocks (RB). Figure 8 is just an example and, therefore, a concession-free transmission resource may have a different number of time slots and frequency intervals and resource blocks.
[00382] The system information (for example, SIB signaling) can define the concession free transmission resource by defining a concession free frequency start point in fO and an concession frequency end point in f5.
[00383] The SIB can also define a concession-free CTU frequency size equal to Af, in terms of the RB size (in the case of Figure 8, equals to 5), concession-free CTU time size equal to At , which is equal to 2 ms. In some embodiments, there may be a unit pattern for subframe = 1ms.
[00384] The information transmitted above in the SIB defines all among the size, locations, number of partitions and time slots of CTU region within a frame.
[00385] As part of the EU-specific RRC signaling, BS can transmit information in several fields.
[00386] A field can include a concession-free EU identifier.
[00387] A field can include information that defines the UL free concession frame interval equal to 10, which is equivalent to 10 subframes or 10 ms. Alternatively, the concession free frame interval for UL field can be empty since this can be, by default, the same frame defined for concession based transmission.
[00388] A field can include information that defines the range
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104/134 of grant-free programming for UL as equal to 2, which is equivalent to 2 ms per time interval.
[00389] A field can include information that defines CTU size in the frequency domain. The same can be defined in terms of the number of RBs. In some modalities, a default is equal to 5. If this is defined in the SIB, as described above, this field may not be used.
[00390] A field can include information that defines a resource jump pattern. Referring to UE 2, in Figure 8, for example, the resource assigned to UE2 is (1,2, 3, 4, 0). This means that the EU 2 appears in one frequency partition (0-4 frequency partitions, where 0 is the frequency partition at the top in Figure 8) in a first frame time slot, the second partition of frequency in a second frame time slot, the third frequency partition in a third frame time slot, the 4 frequency partition in a fourth frame of time slot and frequency partition 0 in a fifth slot frame time.
[00391] A field can include information that defines an RS jump pattern. The RS jump pattern can be an RS index or a cyclic displacement value, for example, index p1. In some embodiments, this field may be optional if the RS hop pattern can be derived from the resource hop pattern.
[00392] A field can include information that defines an MCS field. This field can also be optional since the MCS can be predefined, the UE can select the MCS itself or the MCS can be provided through complementary DCI signaling, as described above.
[00393] A field can include information that defines a research space for granting additional DCI. The search space can be defined as part of RRC signaling or predefined as previously described.
[00394] The RRC and SIB signs above are sufficient to define RS assignment and free concession resource for UE2 in Figure 8.
[00395] In some deployments, complementary DCIs can be used if, for example, RRC and SIB signaling do not define the CTU region, but RRC does define the resource hopping pattern in terms of a sequence
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105/134 index.
[00396] In relation to Figure 8, a DCI message can indicate a first transmission resource in the first interval (for example, specifying RBs or the initial and final frequency band in time interval 0), RS index p1 to be used for time interval 0 and MCS. Based on this DCI message, the UE can derive the remaining resources based on the first resource and RS in the time interval 0 and resource jump pattern defined in the RRC signaling.
[00397] Figure 9 illustrates another example of a concession-free time-frequency transmission resource that can be used for multiple UEs. The numbers 1 to 20, in the blocks in Figure 9, refer to twenty separate UEs. The size and intervals are the same as in Figure 8. However, Figure 9 is different from Figure 8 in that groups of the same four UEs occur in different frequency partitions in each time interval, that is, UEs 1,6, 11 and 16 appear in the frequency partition 0 (0-4 frequency partitions) in the first frame time slot in one frequency partition in the second frame time slot, the second frequency partition in the third time slot frame in three frequency partition on the fourth frame time slot and in the fourth ^the frequency partition in the fifth frame time slot. This allows all UEs that have been assigned a certain set of RBs to be assigned the same grant-free group ID as opposed to individual grant-free EU IDs.
[00398] In this type of fixed grouping resource assignment, the system information (SIB) can define the same concession-free CTU regions from the previous example described above referring to Figure 8.
[00399] Regarding the RRC signaling, it is possible to assign, to groups of UEs, for example, UEs 2, 7,12,17, in Figure 9, the same concession-free group identifier.
[00400] With reference to DCI messages, the DCI message can configure free grant and RS resources for a group of UEs, for example, UEs 2, 7, 12, 17, in Figure 9, or schedule retransmission for the group of UEs, as a group, using the concession-free group identifier assigned to them.
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106/134 [00401] It should be noted that one or more steps of the modality methods, provided in this document, can be performed by corresponding units or modules. For example, a signal can be transmitted by a transmission unit or a transmission module. A signal can be received by a receiving unit or a receiving module. A signal can be processed by a processing unit or a processing module. Other steps can be carried out by means of an establishment unit / module to establish a server cluster, an instance unit / module, an establishment unit / module to establish a session link, a maintenance unit / module, another unit / realization module to perform the step of the step above. The respective units / modules can be hardware, software or a combination of them. For example, one or more of the units / modules can be an integrated circuit, such as field programmable port arrangements (FPGAs) or application-specific integrated circuits (ASICs).
[00402] According to a first example, a method for transmitting uplink data is provided. The method comprises receiving, through a first user equipment (UE), a transmission resource assignment from a network entity, in which the transmission resource assignment comprises an index, the index having a relationship predefined with a transmission resource hop pattern, the transmission resource hop pattern comprises a time-frequency resource hop pattern and a reference signal (RS) pattern, with the combination of each resource time-frequency and each RS is unique for each UE. The method also comprises obtaining, through the first UE, time-frequency resources and RSs that correspond to each time frame interval based on the predefined relation. The method also comprises transmitting, through the first UE, data packets based on the time-frequency resources obtained without communicating, to the network entity, a corresponding transmission resource request that requests that the transmission resources be allocated to the first EU.
[00403] According to a second example, the method is provided
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107/134 of the first example, where the index comprises any one of the following: an UE index to indicate the first time-frequency resources allocated to the UE and the at least one RS; at least one contention transmission unit index (CTU) to indicate the frequency-frequency resources assigned to the UE: or at least one frequency location index that corresponds to each time location index in the CTU regions to indicate the resources of time-frequency allocated to the UE.
[00404] According to a third example, the method of the first example or the second example is provided, in which the index has a predefined relationship with a time-frequency resource jump pattern and a reference signal pattern (RS ) understands: each UE index has a predefined relationship with a corresponding CTU index and an RS in each time frame interval, where each CTU index indicates a unique time and frequency resource.
[00405] According to a fourth example, the method of the third example is provided, in which the time-frequency resource hop pattern comprises M transmission resources allocated to N sets of UEs in the time slot index k, being that each set of UEs comprises M UEs, where the set of UE i in the time slot index k has a cyclic displacement relationship with the set of UE i-1 in the time slot index k.
[00406] According to a fifth example, the method of the fourth example is provided, in which the set of UE i in the time slot index k has a cyclic displacement relationship with the set of UE i in the time slot index k -1.
[00407] According to a sixth example, the method of the fifth example is provided, in which the method additionally comprises: in which a first number of cyclic displacement between the set of UE ie the set of UE i-1 in the slot index of time k is different from a second cyclic displacement number between the set of UE i in the time slot index k and the set of UE i-1 in the time slot index k-1.
[00408] According to a seventh example, the method of the fifth example is provided, in which the method additionally comprises: in which a first number of cyclic displacement between the set of UE i and the set
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108/134 of UE i-1 in the time slot index k is equal to a second cyclic displacement number between the set of UE i, in the time slot index k, and the set of UE i-1, in the index time slot k-1.
[00409] According to an eighth example, a method for transmitting uplink data is provided. The method comprises transmitting, through a network entity, a transmission resource assignment to user equipment (UE), where the transmission resource assignment comprises an index, the index having a predefined relationship with a broadcast resource hop pattern, with the transmission resource hop pattern comprising a time-frequency resource hop pattern and a reference signal (RS) pattern, with the combination of each time- frequency and each RS is unique for each UE. The method also comprises receiving, through the network entity, data packets transmitted by means of a time-frequency resource based on the allocation of the transmission resource.
[00410] According to a ninth example, user equipment (UE) configured for wireless communications is provided. The UE comprises: a non-transitory memory store comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: receive a transmission resource assignment from a network entity, where the transmission resource assignment comprises an index, the index having a predefined relationship to a transmission resource hop pattern, the transmission resource hop pattern comprises a time-frequency resource hop pattern and a reference signal (RS) pattern, the combination of each resource of time frequency and each RS is unique for each UE; obtain time-frequency resources and RSs that correspond to each time frame interval based on the predefined ratio; and transmitting data packets based on the time-frequency resources obtained without communicating to the network entity a corresponding transmission resource request that requests the transmission resources to be allocated to the first UE.
[00411] According to a tenth example, an
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109/134 network entity, the network entity comprising: a non-transitory memory store comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: transmit a transmission resource assignment to a user equipment (UE), where the transmission resource assignment comprises an index , the index having a predefined relationship to a transmission resource hop pattern, the transmission resource hop pattern comprises a time-frequency resource hop pattern and a reference signal (RS) pattern , the combination of each time-frequency resource and each RS being unique for each UE; and receiving data packets transmitted using a time-frequency resource based on the allocation of the transmission resource.
[00412] According to an eleventh example, a method for data transmission is provided, which comprises: receiving, through a first user equipment (UE), a transmission resource assignment from a network entity , where the transmission resource assignment indicates transmission resources to be used for the first UE, where the transmission resources comprise a predefined relationship with a time-frequency resource hop pattern in a frame, where the pattern time-frequency resource hopper comprises M transmission resources allocated to N sets of UEs in the time slot index k, with each set of UEs comprising M UEs, where the set of UE i, in the time index k it has a cyclic displacement relationship with the set of UE i-1 in time index k; and send, through the UE, a first data transmission based on the allocated transmission resource; where k is any value from 1 to N, and i is 2 to N.
[00413] According to a twelfth example, the method of the eleventh example is provided, in which the method additionally comprises: in which the set of UE i, in the time index k, has a cyclic displacement relation with the set of UE i in the k-1 time index; where k is any value from 2 to N.
[00414] According to a thirteenth example, the method of the eleventh example or twelfth example, in which the
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The method further comprises: in which a first number of cyclic displacement between the set of UE i and the set of UE i-1, at time index k, is different from a second number of cyclic displacement between the set of UE i , in the time index k and the set of UE i-1, in the time index k-1.
[00415] According to a fourteenth example, the method of the thirteenth example is provided, in which the first data transmission comprises a data field and a reference signal field (RS).
[00416] According to a fifteenth example, the method of the fourteenth example is provided, in which each RS has a predefined relationship with each set of UEs.
[00417] According to a sixteenth example, the method of the fifteenth example is provided, in which the transmission resource allocation comprises a first index, the first index having a relation with resource resources of time- frequency.
[00418] According to a seventeenth example, the method of the eleventh example or the twelfth example is provided, in which the method further comprises: in which a first number of cyclic displacement between the set of UE i and the set of UE i -1, in the time index k, is equal to a second number of cyclic displacement between the set of UE i, in the time index k, and the set of UE i-1, in the time index k-1.
[00419] According to an eighteenth example, the method of the eleventh example is provided, in which the UEs of the same location in each set are grouped in a group and the same time-frequency resource is assigned to them.
[00420] According to a nineteenth example, the eighteenth example method is provided, in which the UEs in each set are assigned the same reference signal sequence (RS).
[00421] According to a twentieth example, the method of the nineteenth example is provided, in which the RS sequence assignment is determined based on the results of the temp frequency resource assignment to avoid RS collisions in the same time resources
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111/134 frequency.
[00422] According to an twenty-first example, the method of the twenty-first example is provided, in which a RS sequence identifies at least one among an initial transmission or a retransmission, or a redundancy version (RV).
[00423] According to a twenty-second example, the method of the nineteenth example is provided, in which a RS sequence assigned to a UE is reassigned to a second UE when a first UE becomes inactive.
[00424] According to a twenty-third example, the method of the nineteenth example is provided, in which the RS sequence assignment results are transmitted during at least one of an initial access period or RRC connection stage.
[00425] According to a twenty-fourth example, the method of the twenty-third example is provided, in which the RS sequence assignment results include an RS index.
[00426] According to a twenty-fifth example, the method of the twenty-fourth example is provided, in which an RS sequence allocation scheme comprising the RS index is a priori knowledge of the UE.
[00427] According to a twenty-sixth example, the method of the eighteenth example is provided, in which the time-frequency resources assigned to a first group in the first time index and the second time index are different.
[00428] According to a twenty-seventh example, the method of the eighteenth example is provided, in which the results of time-frequency resource allocation are transmitted during at least one of an initial access period or control connection stage radio resource (RRC).
[00429] According to a twenty-eighth example, the method of the eighteenth example is provided, in which the results of time-frequency resource allocation include a time-frequency resource index.
[00430] According to a twenty-ninth example, the method of the twenty-eighth example is provided, in which a scheme for allocating
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112/134 resource of ρο-frequency that comprises the index of tempofrequency resource is a priori knowledge of the UE.
[00431] According to a thirtieth example, the method of the eighteenth example is provided, the results of the time-frequency resource assignment include at least one of an initial time-frequency resource assignment and a time-frequency resource jump pattern .
[00432] According to a thirty-first example, a method for data transmission is provided, which comprises: sending, through a network entity, a transmission resource assignment from a network entity, in which the transmission resource assignment indicates transmission resources to be used for the first UE, where transmission resources comprise a predefined relationship to a time-frequency resource hop pattern in a frame, where the resource hop pattern frequency-frequency comprises M transmission resources allocated to N sets of UEs in the time slot index k, with each set of UEs comprising M UEs, in which the set of UE i, in the time index k, has a relationship cyclic displacement with the set of UE i-1, in time index k; and receiving, through the network entity, a first data transmission based on the allocated transmission resource; where k is any value from 1 to N, and i is 2 to N.
[00433] According to a thirty-second example, a method of the thirty-first example is provided, in which the method additionally comprises: in which the set of UE i, in the time index k has a cyclic displacement relation with the set of UE i, in the time index k1; where k is any value from 2 to N.
[00434] According to a thirty-third example, a method of the thirty-first example or the thirty-second example is provided, in which the method further comprises: in which a first number of cyclic displacement between the set of UEs and the set of UEs i-1, in the time index k, is different from a second cyclic displacement number between the set of UE i, in the time index k, and the set of UE i-1, in the time index k-1.
[00435] According to a thirty-fourth example, a
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113/134 method, according to any one of the thirty-first example to the thirty-third example, wherein the first data transmission comprises a data field and a reference signal (RS) field.
[00436] According to a thirty-fifth example, a method is provided, according to any one of the thirty-first example to the thirty-fourth example, in which each RS has a predefined relationship with each set of UE.
[00437] According to a thirty-sixth example, a method of the thirty-fifth example is provided, which further comprises: identifying, by means of the network entity, the RS based on the predefined relationship with a set of UE comprising a UE .
[00438] According to a thirty-seventh example, a method of the thirty-sixth example is provided, which further comprises: identifying, through the network entity, the UE based on the predefined relationship between the transmission resources and the set of EU groups; and decode, through the network entity, the data based on the first data transmission.
[00439] According to a thirty-eighth example, a user equipment (UE) configured for wireless communications is provided, the UE comprising: a non-transitory memory storage comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: receive a transmission resource assignment from a network entity, where the transmission resource assignment indicates transmission resources to be used for the first UE, where the transmission resources comprise a predefined relationship with a time-frequency resource jump pattern in a frame, where the time-frequency resource jump pattern comprises M transmission resources allocated to N sets of UEs in the time slot index k, with each set of UEs comprising M UEs, where the set of UE i, in the time index k, has a cyclic displacement relationship with the set of UE i -1 in time index k; and sending a first data transmission based on the allocated transmission resource; where k is any value from 1 to N, and i is 2 to N.
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114/134 [00440] According to a thirty-ninth example, a network entity configured for wireless communications is provided, the network entity comprising: a non-transitory memory store comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: send a transmission resource assignment to a user equipment (UE), where the transmission resource assignment indicates resources of transmission to be used for the first UE, and the transmission resources have a predefined relationship to a time-frequency resource hop pattern in a frame, and the time-frequency resource hop pattern comprises M allocated broadcast resources. for N groups of cluster EU, in which group of cluster EU i in k cluster transmission resource has a cyclical displacement relationship with cluster group I-1 in k cluster transmission; and receiving a first data transmission based on the transmission resource allocated from the UE; where the value of k is 2 to Μ, the value of i is 2 to N.
[00441] According to a fortieth example, a method for assigning reference signal (RS) for free uplink concession (GF) transmissions (UL) is provided, the method comprising: assigning, by means of a base station (BS), a plurality of orthogonal RS strings for a first set of user equipment (UEs) when a number of the first set of UEs is below a first limit, a UE that uses an RS for each opportunity GF; and transmit, through the BS, RS sequence assignment results to at least one UE from the first set of UEs.
[00442] According to a forty-first example, the method of the forty-one example is provided, which further comprises: assigning, through BS, a plurality of non-orthogonal RS sequences to a second set of UEs when a total number of first set of UEs and the second set of UEs is above the first limit and below a second limit; and transmit, through the BS, RS sequence assignment results to at least one UE from the second set of UEs.
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115/134 [00443] According to a forty-second example, a method of the forty-second example is provided, which further comprises: assigning, through the BS, an agglomeration of random RS sequences to a third set of UEs total of the first set of UEs, the second set of UEs and the third set of UEs is above the second limit; and transmit, through the BS, RS sequence assignment results to at least one UE from the third set of UEs.
[00444] According to a forty-third example, a method of the forty-one example is provided, in which a RS sequence identifies at least one among an initial transmission or a retransmission, or a redundancy (RV) version.
[00445] According to a forty-fourth example, a method from the forty-one example is provided, in which a UE from the third set of UEs randomly selects an RS sequence from the cluster of random RS sequences.
[00446] According to a forty-fifth example, a method of the forty-one example is provided, in which the RS sequence assignment results are transmitted during at least one of an initial access period or resource control connection stage. radio (RRC).
[00447] According to a forty-sixth example, a method from the fortieth example is provided, in which a RS sequence, assigned to a first UE, is reassigned to a second UE when the first UE becomes inactive.
[00448] According to a forty-seventh example, a network entity configured for wireless communications is provided, the network entity comprising: a non-transitory memory storage comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: assign a plurality of orthogonal RS strings to a first set of user equipment (UEs) when a number of the first set of UEs is below a first threshold, a UE that uses an RS for each FG opportunity; and transmit results of allocation of
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116/134 RS sequence for at least one UE from the first set of UEs.
[00449] According to a forty-eighth example, a method for resource allocation and unified reference signal (RS) is provided for free uplink concession (UL) transmissions, the method comprising: transmitting, by means of a base station (BS), an index of at least one among time-frequency resources or RS strings for a plurality of user equipment (UEs); and updating a mapping scheme index based on a change in at least one of the traffic loads, a number of the pluralities of UEs, RS resources or time-frequency resources.
[00450] According to a forty-ninth example, a method of the forty-eighth example is provided, in which the mapping scheme is transmitted to the plurality of user equipment (UEs) during at least one of an initial access procedure or a random access procedure.
[00451] According to a 50th example, a method of the forty-eighth example is provided, in which the update in the mapping scheme index is transmitted to the plurality of UEs through at least one among system information, a broadcast channel or a common control channel.
[00452] According to a fifty-first example, a network entity configured for wireless communications is provided, the network entity comprising: a non-transitory memory storage comprising instructions; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: transmit an index of at least one among time-frequency resources or RS sequences to a plurality of user equipment (UEs) ; and updating a mapping scheme index based on a change in at least one of the traffic loads, a number of the pluralities of UEs, RS resources or time-frequency resources.
[00453] According to a fifty-second example, a method is provided for free uplink concession (UL) transmissions, the method comprising: receiving, by means of a
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117/134 user equipment (UE), resource assignment from a base station (BS), where the resource assignment comprises transmission resource information for each time slot; transmit, through the UE, a first data packet using the assigned resource of a first time slot; retransmit, through the UE, the first data packet using the assigned resource of a second time slot; receive a confirmation for the first data packet from the BS; and interrupt retransmission of the first data packet [00454] According to a fifty-third example, a user equipment (UE) configured for wireless communications is provided, the UE comprising: a non-transitory memory storage comprising instructions ; and one or more processors in communication with the memory, where the one or more processors execute the instructions to: receive resource assignment from a base station (BS), where the resource assignment comprises transmission resource information for each time slot; transmitting a first data packet using the assigned resource of a first time slot; retransmit the first data packet using the assigned resource of a second time slot; receive a confirmation for the first data packet from the BS; and interrupt retransmission of the first data packet.
[00455] According to a fifty-fourth example, a method is provided to configure concession-free transmission comprising: transmitting a concession-free uplink transmission resource assignment to a User Equipment (UE) using signaling Radio Resource Control (RRC).
[00456] According to a fifty-fifth example, a method of the fifty-fourth example is provided, in which the RRC signaling format includes at least one of: a concession-free EU identifier; a group identifier for a plurality of concession-free UEs; a transmission resource; a feature jump pattern; a reference signaling (RS) hop pattern; modulation and coding scheme information (MCS); and a definition of a search space for a Downlink Control Information (DCI) message
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118/134 of location.
[00457] According to a fifty-sixth example, a method of the fifty-fifth example is provided which further comprises determining the value to be transmitted to at least one of: a concession-free EU identifier; a group identifier for a plurality of concession-free UEs; a transmission resource; a feature jump pattern, a reference signaling (RS) jump pattern; modulation and coding scheme information (MCS); and a definition of a search space for a Downlink Control Information (DCI) message.
[00458] According to a fifty-seventh example, a method of the fifty-fourth example is provided which comprises: receiving a first data transmission or a subsequent retransmission in the allocation of the concession-free uplink transmission resource assigned to the UE.
[00459] According to a fifty-eighth example, a method from the fifty-seventh example is provided which comprises, in response to the receipt of the first data transmission or a subsequent retransmission, transmitting at least one of: an acknowledgment (ACK) if the first data transmission or subsequent retransmission has been successfully decoded; a negative acknowledgment (NACK) if the first data transmission or subsequent retransmission has not been successfully decoded; and a lease for retransmission if the first data transmission or subsequent retransmission has not been successfully decoded.
[00460] According to a fifty-ninth example, a method of the fifty-eighth example is provided which comprises transmitting the ACK, NAK or concession for retransmission in a Downlink Control Information (DCI) message.
[00461] According to a sixtieth example, a method of the fifty-fourth example is provided which comprises transmitting an update of transmission resources in a DCI message.
[00462] According to a sixty-first example, it is provided
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119/134 a method of the sixtieth example in which the DCI message is encoded with a grant-free group ID.
[00463] According to a sixty-second example, a method of the fifty-fourth example is provided which comprises transmitting an activation indicator in a DCI message.
[00464] According to a sixty-third example, a method of the fifty-fourth example is provided which comprises transmitting a deactivation indicator in a DCI message.
[00465] According to a sixty-fourth example, a method of the fifty-fourth example is provided which further comprises disseminating system information accessible to a plurality of UEs.
[00466] According to a sixty-fifth example, a method of the sixty-fourth example is provided in which the system information includes at least one among the information that defines the start of a concession-free frequency transmission resource (GFfrequencyStart), the end of the concession-free frequency transmission feature (GFfrequencyFinish), a concession-free CTU size and the CTU time size (GFCTUSizeTime).
[00467] According to a sixty-sixth example, a method is provided to configure concession-free transmission comprising: receiving a concession-free uplink transmission resource assignment to a User Equipment (UE) using Control Radio Resource (RRC).
[00468] According to a sixty-seventh example, a method of the sixty-sixth example is provided, in which the RRC signaling format includes at least one of: a concession-free EU identifier; a group identifier for a plurality of concession-free UEs; a transmission resource; a feature jump pattern, a reference signaling (RS) jump pattern; modulation and coding scheme information (MCS); and a definition of a search space for a Downlink Control Information (DCI) message.
[00469] According to a sixty-eighth example, it is provided
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120/134 a method of the sixty-sixth example comprising: transmitting a first data transmission or a subsequent retransmission in the allocation of the concession-free uplink transmission resource assigned to the UE.
[00470] According to a sixty-ninth example, a method from the sixty-eighth example is provided which comprises receiving at least one of: an acknowledgment (ACK) if the first data transmission or subsequent retransmission has been successfully decoded; a negative acknowledgment (NACK) if the first data transmission or subsequent retransmission has not been successfully decoded; and a lease for retransmission if the first data transmission or subsequent retransmission has not been successfully decoded.
[00471] According to a seventieth example, a method of the sixty-ninth example is provided which comprises receiving the ACK, NAK or grant for retransmission in a Downlink Control Information (DCI) message.
[00472] According to a seventy-first example, a method of the seventieth example is provided which comprises searching in a predetermined search space for the DCI message.
[00473] According to a seventy-second example, a method of the seventy-first example is provided which further comprises decoding the DCI message based on a grant-free UE identifier assigned to the grant-free UE in RRC signaling.
[00474] According to a seventy-third example, a method of the sixty-sixth example is provided which comprises receiving an update of transmission resources in a DCI message.
[00475] According to a seventy-fourth example, a method of the seventy-third example is provided in which the DCI message is encoded with a grant-free group ID.
[00476] According to a seventy-fifth example, a method of the sixty-sixth example is provided which comprises receiving
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121/134 an activation indicator in a DCI message.
[00477] According to a seventy-sixth example, a method of the sixty-sixth example is provided which comprises receiving a deactivation indicator in a DCI message.
[00478] According to a seventy-seventh example, a method of the sixty-sixth example is provided which further comprises receiving system information that defines information for a plurality of UEs.
[00479] According to a seventy-eighth example, a method of the seventy-sixth example is provided in which the system information includes at least one among the information that defines the start of a concession-free frequency transmission resource (GFfrequencyStart), the end of the concession-free frequency transmission feature (GFfrequencyFinish), a concession-free CTU size and the CTU time size (GFCTUSizeTime).
[00480] According to a seventy-ninth example, a method of the sixty-sixth example is provided in which the transmission resource to be used for concession-free transmission is determined based on RRC information and at least one among: system information ; and decoded DCI messages.
[00481] According to an eightieth example, a network device is provided which comprises: a processor; and a computer-readable storage medium that stores programming for execution through the processor, the programming including instructions for performing actions in accordance with a method in any of the fifty-fourth example to the sixty-fifth example.
[00482] According to an eighty-first example, a UE is provided which comprises: a processor; and a computer-readable storage medium that stores programming for execution by the processor, the programming including instructions for performing actions in accordance with a method in any of the sixty-sixth example to the seventy-ninth example.
[00483] Example 1 A. A method for user equipment
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122/134 (UE) for concession-free transmissions, the method comprising: receiving, from a network equipment, a radio resource control (RRC) signaling that indicates a concession-free transmission resource configuration uplink data transmission and retransmission of uplink data, the uplink concession free transmission resource configuration includes a time resource, a frequency resource, reference signal resource information (RS) and an interval between two concession-free transmission opportunities, obtain uplink concession free transmission resources based on RRC signaling, without receiving downlink control (DCI) information for an initial transmission of uplink data, and transmit the uplink data to the network equipment using the concession-free transmission resources the uplink link.
[00484] Example 2A. The method, according to Example 1A, the method further comprising: receiving, from the network equipment, a DCI message indicating a concession for an uplink data retransmission; and relay, to the network equipment, the uplink data based on the concession.
[00485] Example 3A. The method, according to Example 2A, in which the RRC signaling additionally comprises a concession-free EU identifier, the method further comprising: decoding the DCI message using the free-of-charge EU identifier concession.
[00486] Example 4A. The method, according to Example 2A, wherein the DCI message comprises a new data indicator field set to a value of 1 which indicates the concession for the uplink data retransmission.
[00487] Example 5A. The method, according to any one of Examples 1A to 4A, wherein the RRC signaling additionally comprises a number of transmission repetitions of the uplink data.
[00488] Example 6A. The method, according to any of Examples 1A to 5A, wherein the RRC signaling further comprises
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123/134 a number of configured HARQ processes.
[00489] Example 7A. The method, according to any of Examples 1A to 6A, wherein the RRC signaling additionally comprises at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[00490] Example 8A. The method, according to any of Examples 1A to 7A, which further comprises relaying the uplink data with the use of free uplink lease transmission resources if no DCI message indicating a lease for a retransmission uplink data has been received.
[00491] Example 9A. The method, according to Example 5A, which further comprises relaying the uplink data using the free uplink transmission resources until the number of transmission repetitions is reached.
[00492] Example 10A. A user equipment (UE) configured for concession-free transmissions, the UE comprising: a processor; and a computer-readable storage medium that stores programming instructions for execution through the processor, and the programming includes instructions for: receiving, from a network device, a radio resource control (RRC) signal from network equipment, wherein the RRC signaling indicates an uplink grant free transmission resource configuration for uplink data transmission and retransmission, and the uplink free transmission resource configuration ascending includes a time resource, a frequency resource, reference signal (RS) resource information and an interval between two concession-free transmission opportunities; obtain free transmission resources for uplink concession based on RRC signaling, without receiving downlink control (DCI) information for an initial transmission of uplink data; and transmit, to the
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124/134 uplink data using uplink concession free transmission resources.
[00493] Example 11A. The UE, according to Example 10A, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the UE: to receive, from the network equipment, a DCI message indicating a concession for a retransmission of the uplink data; and retransmit, to the network equipment, the uplink data based on the concession.
[00494] Example 12A. The UE, according to Example 11A, in which the RRC signaling additionally comprises a concession-free UE identifier, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the UE: to decode the DCI message using the grant-free UE identifier.
[00495] Example 13A. The UE, according to Example 11A, wherein the DCI message comprises a new data indicator field set to a value of 1 that indicates the concession for the uplink data retransmission.
[00496] Example 14A. The UE, according to any of Examples 10A to 13A, wherein the RRC signaling additionally comprises a number of uplink data transmission repetitions.
[00497] Example 15A. The UE, according to any of Examples 10A to 14A, wherein the RRC signaling further comprises a number of configured HARQ processes.
[00498] Example 16A. The UE, according to any of Examples 10A to 15A, wherein the RRC signaling additionally comprises at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[00499] Example 17A. The UE, according to any of the
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125/134
Examples 10A to 16A, where the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the UE: to retransmit the uplink data using the free transmission resources uplink lease if no DCI message indicating a lease for a uplink data retransmission has been received.
[00500] Example 18A. The UE, according to Example 14A, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the UE: to relay the uplink data using the free uplink concession resources until the number of transmission repetitions is reached.
[00501] Example 19A. A method for network equipment for concession-free transmissions, the method comprising: transmitting, to a user equipment (UE), a radio resource control (RRC) signaling that indicates a free transmission resource configuration uplink grant transmission for uplink data transmission and retransmission, wherein the uplink grant free transmission resource configuration includes a time resource, a frequency resource, reference signal resource information (RS ), and an interval between two concession-free transmission opportunities, and receiving, from the UE, uplink data transmitted using the uplink concession free transmission resources allocated based on RRC signaling, without transmitting downlink control (DCI) information for an initial transmission of the uplink data.
[00502] Example 20A. The method, according to Example 19A, the method further comprising: transmitting to the UE a DCI message indicating a concession for a retransmission of the uplink data; and receiving, from the UE, the uplink data retransmitted based on the concession.
[00503] Example 21 A. The method, according to Example 19A or the
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126/134
Example 20A, wherein the RRC signaling additionally includes a concession-free UE identifier.
[00504] Example 22A. The method, according to Example 20A, wherein the DCI message comprises a new data indicator field set to a value of 1 which indicates the concession for the uplink data retransmission.
[00505] Example 23A. The method, according to any of Examples 19A to 22A, wherein the RRC signaling additionally comprises a number of transmission repetitions of the uplink data.
[00506] Example 24A. The method, according to any of Examples 19A to 23A, wherein the RRC signaling further comprises a number of configured HARQ processes.
[00507] Example 25A. The method, according to any of Examples 19A to 24A, wherein the RRC signaling additionally comprises at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[00508] Example 26A. The method, according to any of Examples 19A to 25A, which further comprises receiving a retransmission of the uplink data using the free uplink grant transmission resources.
[00509] Example 27A. The method, according to Example 23A, which further comprises receiving a retransmission of the uplink data using the free uplink transmission resources until the number of transmission repetitions is reached.
[00510] Example 28A. A network equipment configured for concession-free transmissions, the network equipment comprising: a processor; and a computer-readable storage medium that stores programming instructions for execution through the processor, the programming including instructions for: transmitting, for
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127/134 a user equipment (UE), a radio resource control (RRC) signaling that indicates an uplink grant free transmission resource configuration for uplink data transmission and retransmission, where the uplink concession free transmission resource configuration includes a time resource, frequency resource, reference signal resource information (RS) and an interval between two concession free transmission opportunities, and receiving from the UE, uplink data transmitted using free uplink grant transmission resources allocated based on RRC signaling, without transmitting downlink control (DCI) information for an initial transmission of uplink data.
[00511] Example 29A. The network equipment, according to Example 28A, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment: to transmit, to the UE, a DCI message indicating a grant for a retransmission of the uplink data; and receiving, from the UE, the uplink data based on the concession.
[00512] Example 30A. The network equipment, according to Example 28A or Example 29A, wherein the RRC signaling additionally comprises a concession-free UE identifier.
[00513] Example 31A. The network equipment, according to Example 29A, in which the DCI message comprises a new data indicator field set to a value of 1 which indicates the concession for the uplink data retransmission.
[00514] Example 32A. The network equipment, according to any of Examples 28A to 31A, wherein the RRC signaling additionally comprises a number of uplink data transmission repetitions.
[00515] Example 33A. The network equipment, according to any of Examples 28A to 32A, wherein the RRC signaling additionally comprises a number of configured HARQ processes.
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128/134 [00516] Example 34A. The network equipment, according to any of Examples 28A to 33A, wherein the RRC signaling additionally comprises at least one of the following: power control parameters; a group identifier for a plurality of concession-free UEs; a feature jump pattern; a RS jump pattern; and modulation and coding scheme (MCS) information.
[00517] Example 35A. The network equipment, according to any of Examples 28A to 34A, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, make the network equipment: receive a uplink data retransmission using uplink concession free transmission resources.
[00518] Example 36A. The network equipment, according to Example 32A, and the computer-readable media has, stored in it, instructions executable on a computer that, when executed by the processor, cause the network equipment: to receive a retransmission of data from uplink with the use of free uplink concession resources until the number of transmission repetitions is reached.
[00519] Example 37A. A method for user equipment (UE) for concession-free transmissions, the method comprising: receiving, from network equipment, a radio resource control (RRC) signaling that indicates a radio resource configuration. uplink concession free transmission, the uplink concession free transmission resource configuration including a number of K transmission repetitions, receiving, from the network equipment, a first downlink control information message (DCI), where the first DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession data transmissions and a reference signal (RS) value for the UE assigned from of a group of RS values, obtain free uplink grant transmission resources based on the transmission resource configuration not free of link concession
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129/134 uplink indicated in the RRC signaling and the first DCI message, and transmit uplink data to the network equipment using the uplink concession free transmission resources.
[00520] Example 38A. The method, according to Example 37A, the method further comprising: receiving, from the network equipment, a second DCI message, wherein the second DCI message includes a deactivation indication that indicates that the UE is not permitted to perform free uplink concession transmissions, and to interrupt transmissions using uplink concession free transmission resources.
[00521] Example 39A. The method, according to Example 37A, wherein the first DCI message further comprises resource block information and modulation and coding scheme (MCS) information.
[00522] Example 40A. The method according to Example 37A, the method further comprising: receiving a third DCI message from the network equipment, wherein the third DCI message indicates an uplink grant for a retransmission of the data from uplink.
[00523] Example 41 A. The method, according to Example 37A, in which the RRC signaling includes at least one among an interval between two concession-free transmission opportunities, parameters related to power control, a number of processes configured HARQ and a grant-free EU identifier.
[00524] Example 42A. The method, according to Example 37A, in which the RS value for the UE is different from an RS value for another UE.
[00525] Example 43A. The method, according to Example 37A, in which the RS values assigned from the group of RS values are generated from orthogonal RS sequences.
[00526] Example 44A. A user equipment (UE) configured for concession-free transmissions, the UE comprising: a processor; and a computer-readable storage medium that stores programming instructions for execution by the processor, and the programming includes instructions for: receiving from a device
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130/134 network, a radio resource control (RRC) signaling indicating an uplink grant free transmission resource configuration, the uplink grant free transmission resource configuration including a number of transmission repetitions K, receive, from the network equipment, a first downlink control information (DCI) message, in which the first DCI message includes an activation indication that indicates that the UE is allowed to perform transmissions free uplink grant data and reference signal (RS) information indicative of an allocated RS for the UE, obtain uplink grant free transmission resources based on uplink grant free transmission resource configuration indicated in the RRC signaling and in the first DCI message, and transmit link data to the network equipment upward with the use of free uplink transmission resources.
[00527] Example 45A. The UE, according to Example 44A, the programming additionally includes instructions for: receiving, from the network equipment, a second DCI message, in which the second DCI message includes a deactivation indication that indicates that the UE is not permitted to perform free uplink concession transmissions, and to interrupt transmissions using the uplink concession free transmission resources.
[00528] Example 46A. The UE, according to Example 44A, wherein the first DCI message further comprises resource block information and modulation and coding scheme (MCS) information.
[00529] Example 47A. The UE, according to Example 44A, the programming additionally includes instructions for: receiving a third DCI message from the network equipment, where the third DCI message indicates an uplink lease for a data retransmission uplink.
[00530] Example 48A. The UE, according to Example 44A, in which the RRC signaling includes at least one of the interval between two concession-free transmission opportunities, parameters related to
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131/134 power control, a number of configured HARQ processes and a concession-free UE identifier.
[00531] Example 49A. The UE, according to Example 44A, where the RS value for the UE is different from an RS value for another UE.
[00532] Example 50A. The UE, according to Example 44A, in which the RS values assigned from the group of RS values are generated from orthogonal RS sequences.
[00533] Example 51 A. A method for network equipment for concession-free transmissions, the method comprising: transmitting, to a user equipment (UE), a radio resource control (RRC) signal indicating an uplink concession free transmission resource configuration, the uplink concession free transmission resource configuration including a number of K transmission repetitions, transmitting a first control information information message to the UE. downlink (DCI), where the first DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession transmissions and reference signal (RS) information indicative of an RS allocated to the UE, receive, from the UE, uplink data transmitted using the free uplink concession resources based on the RRC signaling and the first DCI message.
[00534] Example 52A. The method, according to Example 51 A, the method further comprising: transmitting a second DCI message to the UE, in which the second DCI message includes a deactivation indication that indicates that the UE has no permission to perform free uplink concession transmissions.
[00535] Example 53A. The method, according to Example 51 A, wherein the first DCI message further comprises resource block information and modulation and coding scheme (MCS) information.
[00536] Example 54A. The method according to Example 51 A, the method further comprising: transmitting a third DCI message to the UE, wherein the third DCI message indicates an uplink grant for a retransmission of the link data
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Ascending 132/134.
[00537] Example 55A. The method, according to Example 51 A, in which the RRC signaling includes at least one among an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and an identifier concession-free EU
[00538] Example 56A. The method, according to Example 51 A, in which the RS value for the UE is different from an RS value for another UE.
[00539] Example 57A. The method, according to Example 51 A, in which the RS values assigned from the group of RS values are generated from orthogonal RS sequences.
[00540] Example 58A. A network equipment configured for concession-free transmissions, the network equipment comprising: a processor; and a computer-readable storage medium that stores programming instructions for execution through the processor, the programming including instructions for: transmitting a radio resource control (RRC) signal to a user equipment (UE) indicating an uplink grant free transmission resource configuration, the uplink grant free transmission resource configuration including a number of K transmission repetitions, transmitting a first information message to the UE. downlink control (DCI), where the first DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession transmissions and reference signal (RS) information indicative of an allocated RS to the UE, and receive, from the UE, uplink data transmitted using the resources of transmission free of uplink concession allocated based on the RRC signaling and the first DCI message.
[00541] Example 59A. The network equipment, according to Example 58A, the method further comprising: transmitting a second DCI message to the UE, wherein the second DCI message includes a deactivation indication that indicates that the UE is not is allowed to perform free uplink concession transmissions.
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133/134 [00542] Example 60A. The network equipment, according to ο Example 58Α, in which the first DCI message further comprises resource block information and modulation and coding scheme (MCS) information.
[00543] Example 61 A. The network equipment, according to Example 58A, the method further comprising: transmitting a third DCI message to the UE, where the third DCI message indicates an uplink lease for a retransmission of the uplink data.
[00544] Example 62A. The network equipment, according to Example 58A, in which the RRC signaling includes at least one within an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes and one concession-free EU identifier.
[00545] Example 63A. The network equipment, according to Example 58A, in which the RS value for the UE is different from an RS value for another UE.
[00546] Example 64A. The network equipment, according to Example 58A, in which the RS values assigned from the group of RS values are generated from orthogonal RS sequences.
[00547] Example 65A. A user equipment (UE) for concession-free transmissions, comprising: means for receiving, from network equipment, a radio resource control (RRC) signaling that indicates a concession-free transmission resource configuration uplink transmission configuration, the uplink concession free transmission resource configuration including a number of K transmission repeats, means for receiving, from the network equipment, a first downlink control information message (DCI) ), where the first DCI message includes an activation indication that indicates that the UE is allowed to carry out uplink concession free data transmissions and a reference signal value (RS) to the UE assigned from a group of RS values means to obtain free uplink concession transmission resources
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134/134 based on the uplink concession free transmission resource configuration indicated in the RRC signaling and the first DCI message, and means for transmitting uplink data to the network equipment using the transmission resources free from uplink concession.
[00548] Example 66A. A network equipment for concession-free transmissions, the network equipment comprising: means for transmitting, to a user equipment (UE), a radio resource control signaling (RRC) indicating a transmission resource configuration uplink concession free, the uplink concession free transmission resource configuration including a number of transmission repeats K, means for transmitting a first downlink control information (DCI) message to the UE , where the first DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession transmissions and reference signal (RS) information indicative of an RS allocated to the UE, and means for receive, from the UE, uplink data transmitted using free uplink transmission resources to based on the RRC signaling and the first DCI message.
[00549] Although this disclosure has been described with reference to illustrative modalities, this description is not intended to be interpreted in a limiting sense. Various modifications and combinations of the illustrative modalities, as well as other modalities of disclosure, will be evident to persons skilled in the art by reference to the description. It is therefore intended that the attached claims cover any such modifications or modalities.

权利要求:
Claims (15)
[1]
1. Method for user equipment, UE, for concession-free transmissions, the method CHARACTERIZED by:
receive, from a network device, a radio resource control signaling, RRC, (302) indicating an uplink grant free transmission resource configuration, the link free grant transmission resource configuration upstream including a number of K transmission repeats, receiving, from the network equipment, a first downlink control information message, DCI, (3021), where the first DCI message includes an activation indication that indicates that the UE is allowed to perform free uplink concession data transmissions and a reference signal value, RS, for the UE assigned from a group of RS values, to obtain uplink concession free transmission resources (3032) based on the uplink concession free transmission resource configuration indicated in the RRC signaling and the first DCI message, and transmitting (304), to the network equipment, uplink data using the uplink concession free transmission resources.
[2]
2. Method, according to claim 1, CHARACTERIZED by the fact that the method additionally comprises:
receive, from the network equipment, a second DCI message, in which the second DCI message includes a deactivation indication that indicates that the UE is not allowed to perform free uplink concession transmissions, and interrupt the transmissions with the use of transmission resources free of uplink concession.
[3]
3. Method, according to claim 1, CHARACTERIZED by the fact that the first DCI message additionally comprises resource block information and modulation and coding scheme information, MCS.
Petition 870190072139, of 7/29/2019, p. 141/145
[4]
4/4
4. Method, according to claim 1, CHARACTERIZED by the fact that the method additionally comprises:
receiving a third DCI message from the network equipment, wherein the third DCI message indicates an uplink lease for a retransmission of uplink data.
[5]
5. Method, according to claim 1, CHARACTERIZED by the fact that the RRC signaling includes at least one among an interval between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes , and a grant-free EU identifier.
[6]
6. Method, according to claim 1, CHARACTERIZED by the fact that the RS value for the UE is different from a RS value for another UE.
[7]
7. Method, according to claim 1, CHARACTERIZED by the fact that the RS values assigned from the group of RS values are generated from orthogonal RS sequences.
[8]
8. User equipment, UE, configured for concession-free transmissions, UE FEATURED by:
a processor; and a computer-readable storage medium that stores programming instructions for execution by the processor, programming including instructions for performing the method as defined in any one of claims 1 to 7.
[9]
9. Method for network equipment for transmission free of concession, the method CHARACTERIZED by:
transmit, to a user equipment, UE, a radio resource control signaling, RRC, (302) indicating an uplink grant free transmission resource configuration, the link grant free transmission resource configuration upstream including a number of K transmission repeats, transmitting to the UE a first downlink control information message, DCI, (3021), wherein the first DCI message includes an activation indication that indicates that the UE has permission to
Petition 870190072139, of 7/29/2019, p. 142/145
ΑΙΑ carry out free uplink concession transmissions and reference signal information, RS, indicative of an RS allocated to the UE, receive, from the UE, uplink data (304) transmitted using free transmission resources uplink concession allocated based on the RRC signaling and the first DCI message.
[10]
10. Method, according to claim 9, CHARACTERIZED by the fact that the method additionally comprises:
transmitting a second DCI message to the UE, wherein the second DCI message includes a deactivation indication that indicates that the UE is not permitted to perform free uplink grant transmissions.
[11]
11. Method according to claim 9, CHARACTERIZED by the fact that the first DCI message additionally comprises resource block information and modulation and coding scheme information, MCS.
[12]
12. Method, according to claim 9, CHARACTERIZED by the fact that the method additionally comprises:
transmitting a third DCI message to the UE, wherein the third DCI message indicates an uplink lease for a retransmission of the uplink data.
[13]
13. Method, according to claim 9, CHARACTERIZED by the fact that the RRC signaling includes at least one of two intervals between two concession-free transmission opportunities, parameters related to power control, a number of configured HARQ processes , and a grant-free EU identifier.
[14]
14. Method, according to claim 9, CHARACTERIZED by the fact that the RS value for the UE is different from a RS value for another UE.
[15]
15. Network equipment configured for concession-free transmissions, network equipment CHARACTERIZED by:
a processor; and a computer-readable storage medium that stores
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4/4 programming instructions for execution by the processor, programming including instructions for performing the method as defined in any of claims 9 to 14.

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法律状态:
2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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US201762444210P| true| 2017-01-09|2017-01-09|

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US62/444,210|2017-01-09|

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US201762447437P| true| 2017-01-17|2017-01-17|

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US201762447906P| true| 2017-01-18|2017-01-18|

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