COLLISION PREVENTION FOR PROGRAMMING REQUIREMENTS AND UPLINK CONTROL INFORMATION

专利摘要:
the present invention relates to methods, systems, and devices for wireless communication. a user equipment (eu) can identify that a programming request (sr) must be transmitted on a first uplink control channel having a first transmission time interval duration (tti) and identify which negative confirmation / confirmation information (ack / nack) are programmed to transmit on a second uplink control channel having a second tti duration longer than the first tti duration, where the first uplink control channel and the second uplink control channel are overlap in time. the eu can determine that ack / nack information should be transmitted with mr on the first uplink control channel based on the overlap of the first uplink control channel and second uplink control channel, and can determine resources of the first channel uplink controls to be used for transmitting sr and ack / nack information. the eu can transmit the sr and ack / nack information on the given resources.
公开号:BR112020016112A2
申请号:R112020016112-8
申请日:2019-02-05
公开日:2020-12-08
发明作者:Seyedkianoush HOSSEINI；Amir Farajidana；Lai Wei；Wanshi Chen
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] This Patent Application claims the benefit of US Provisional Patent Application No. 62 / 627,620, by Hosseini et al., Entitled “Collision Avoidance for Scheduling Requests and Uplink Control Information”, filed on February 7, 2018; and US Patent Application No. 16 / 267,326, by Hosseini et al., Entitled “Collision Avoidance for Scheduling Requests and Uplink Control Information”, filed on February 4, 2019; each of which is assigned to the assignee. BACKGROUND
[0002] [0002] The following refers in general to wireless communication and, more specifically, collision prevention for a programming request (SR) and uplink control information (UCI).
[0003] [0003] Wireless communication systems are widely used to provide various types of communication content, such as voice, video, packet data, messages, broadcasting, and so on. These systems may be able to support communication with multiple users by sharing available system resources (for example, time, frequency and power). Examples of such multiple access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-Advanced systems (LTE-A) or LTE-A Pro systems, and fifth systems generation (5G) that can be referred to as New systems
[0004] [0004] In some wireless communication systems, a UE may have uplink control information to transmit simultaneously on more than one channel. UEs that do not have the capacity for simultaneous transmissions on multiple channels may experience collisions between uplink transmissions. If not resolved, such collisions can reduce the throughput on one or more of the channels. In addition, an UE may not know what resources to transmit uplink control information in the event of a collision, which can affect the UE's ability to transmit data to the base station. SUMMARY
[0005] [0005] The techniques described refer to improved methods, systems, devices or devices that support collision prevention for programming requests (SRs) and uplink control information. In general, the techniques described provide selection of physical short uplink control (sPUCCH) resources for the transmission of uplink control information (UCI) when sPUCCH is a physical uplink control channel and / or channel shared physical uplink (PUCCH / PUSCH) collide and the UE may not be capable of simultaneous transmission of sPUCCH and PUCCH / PUSCH. For example, a user device (UE) can identify a collision between an SR to be transmitted in sPUCCH and hybrid automatic repeat request feedback (HARQ) programmed for PUCCH / PUSCH transmission at the same time (for example, in which the sPUCCH and PUCCH / PUSCH overlap over time). In such cases, HARQ and SR feedback can be consolidated to be transmitted in sPUCCH, and the UE can determine which sPUCCH resources to use for the transmission of SR and HARQ feedback. In some examples, one or more resources within sPUSCH for the transmission of SR and HARQ feedback can be configured for such transmissions. The sPUCCH features to be used may depend on the number of bits in the HARQ feedback, a maximum encoding rate, the timing of a program request trigger, the logical channel used, and the like.
[0006] [0006] A wireless communication method is described. The method may include identifying that an SR should be transmitted in a first uplink control channel message having a first transmission time interval (TTI) duration, identifying which negative confirmation / confirmation information (ACK / NACK) is programmed for transmission in a second uplink control channel message having a second TTI duration that is longer than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time, determine that ACK / NACK information must be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second control channel message uplink, determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information, and transmitting the SR and the information of ACK / NACK on the resources determined from the first uplink control channel message.
[0007] [0007] A device for wireless communication is described. The apparatus may include means for identifying that an SR should be transmitted in a first uplink control channel message having a first TTI duration, means for identifying which ACK / NACK information is programmed for transmission in a second transmission channel message. uplink control having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time, means for determining that ACK / NACK information must be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message, means for determining resources the first uplink control channel message to be used for transmitting the SR and the ACK / NACK information, and means for transmitting the SR and the ACK / NACK information on the the resources determined from the first uplink control channel message.
[0008] [0008] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. The instructions can be operable to cause the processor to identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration, to identify that ACK / NACK information is programmed for transmission in a second uplink control channel having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time, determining that ACK / NACK information must be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message, determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information, and transmitting the SR and ACK / NACK information on the determined resources of the first uplink control channel message.
[0009] [0009] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium can include operable instructions to get a processor to identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration, to identify what ACK / NACK information is programmed to transmission in a second uplink control channel message having a second TTI duration that is longer than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message are overlap, determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message uplink, determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information, and transmitting the SR and the ACK / NACK information on the resources determined from the first uplink control channel message.
[0010] [0010] [Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for determining a format of the first uplink control channel message based on a size of the information ACK / NACK, where the format of the first uplink control channel message corresponds to a set of resources. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for identifying an SR configuration that indicates first resources in the set of resources to be used to transmit the SR and the information of ACK / NACK according to the format, in which the determined resources include the first resources.
[0011] [0011] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, ACK / NACK information is associated with communications using the second TTI duration. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, determining the format of the first uplink control channel message includes identifying the format based on the first TTI duration, where the first TTI duration includes one of a partition or a duration shorter than the partition, and where the format includes an sPUCCH 3 format or an sPUCCH 4 format. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, identify the SR configuration includes identifying the SR configuration from a set of configurations for transmitting the ACK / NACK information, or the SR, or a combination thereof.
[0012] [0012] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, a first configuration of the configuration set includes an indication of whether the SR may have to be transmitted in the first uplink control channel message or in the second uplink control channel message. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, a second configuration of the configuration set indicates whether the SR transmission may have to be deferred.
[0013] [0013] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, a third configuration of the configuration set indicates that the second uplink control channel message may have to be discarded. In some examples of the non-transitory, computer-readable method, apparatus and medium described in this document, a fourth configuration set indicates that the second uplink control channel message and ACK / NACK information may have to be discarded.
[0014] [0014] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, the SR configuration can be received through downlink control information (DCI), radio resource control message (RRC), or a combination of them. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, the SR configuration can be pre-configured.
[0015] [0015] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may further include processes, resources, means or instructions for determining a format of the first uplink control channel message based on a size of the ACK / NACK, where the format of the first uplink control channel message corresponds to a set of resources. Some examples of the non-transitory, computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for identifying an SR configuration that indicates two or more resources from the set of resources to be used to transmit the SR and the information of
[0016] [0016] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for identifying an encoding rate limit for the resources of the first uplink control channel message. In some examples of the non-transitory, computer-readable method, apparatus, and medium described in this document, determining the capabilities of the first uplink control channel message includes determining the capabilities of the two or more assets based on the encoding rate limit, size of the ACK / NACK information, and a number of cyclic redundancy check (CRC) bits.
[0017] [0017] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for selecting, from the two or more resources, a first resource for transmitting the SR and the ACK information / NACK, such that an encoding rate of the first resource satisfies the encoding rate limit based on a payload size of the first resource, where the first resource can be a smaller resource of the two or more resources.
[0018] [0018] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for selecting, from the two or more resources, a first resource for transmitting the SR and the ACK information / NACK. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions to determine that the first resource does not meet the encoding rate limit based on a payload size of the first resource. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for selecting, from the two or more resources, a second resource such that a coding rate for the second resource satisfies the limit encoding rate, where the second resource can be greater than the first resource.
[0019] [0019] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, each of the two or more resources can be mapped to a number of resource blocks (RBs).
[0020] [0020] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, determining the format of the first uplink control channel message includes identifying the format based on the first duration of TTI, where the first duration of TTI includes one of a partition or a duration shorter than the partition, and the format includes an sPUCCH 3 format or an sPUCCH 4 format.
[0021] [0021] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for determining a format of the first uplink control channel message based on a size of the ACK / NACK, where the format of the first uplink control channel message corresponds to a set of resources. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for identifying a more recent instance of the first uplink control channel message having the specified format that has been indicated to the UE , in which determining the features of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information can be based on the most recent instance, or on the given format, or a combination of them.
[0022] [0022] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, determining the format of the first uplink control channel message includes identifying a format configuration for resources based on the first TTI duration, the first TTI duration including a partition or duration less than the partition, and the format includes an sPUCCH 3 format or an sPUCCH 4 format.
[0023] [0023] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for determining an absence of DCI including an ACK / NACK resource indicator (ARI) for the first uplink control channel message, in which determining the capabilities of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information can be based on the absence of the DCI.
[0024] [0024] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for receiving an SR configuration that indicates that the SR may have to be transmitted in the first channel message uplink control. Some examples of the non-transitory, computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for determining that a size of ACK / NACK information can be greater than two bits.
[0025] [0025] A wireless communication method is described. The method may include receiving an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message, identifying an encoding rate limit for the uplink control message, determining a payload size of the uplink control message, select from the control channel resource set a control channel resource based on the encoding rate limit and the determined payload size of the uplink control message , and transmit the uplink control message to a base station using the selected control channel feature.
[0026] [0026] A device for wireless communication is described. The apparatus may include means for receiving an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message, means for identifying an encoding rate limit for the control message. uplink, means for determining a payload size of the uplink control message, means for selecting, from the set of control channel resources, a control channel resource based on the encoding rate limit and the load size determined usefulness of the uplink control message, and means for transmitting the uplink control message to a base station using the selected control channel feature.
[0027] [0027] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. Instructions can be operable to get the processor to receive an indication of a set of control channel features from an uplink control channel to be used for an uplink control message, identify an encoding rate limit for the message control uplink, determine a payload size of the uplink control message, select, from the control channel resource set, a control channel resource based on the encoding rate limit and the determined payload size of the uplink control message, and transmit the uplink control message to a base station using the selected control channel feature.
[0028] [0028] A non-transitory, computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include operable instructions for getting a processor to receive an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message, identifying a limit of encoding rate for the uplink control message, determining a payload size of the uplink control message, selecting a control channel resource from the control channel resource set based on the encoding rate limit, and at the determined payload size of the uplink control message, and transmit the uplink control message to a base station using the selected control channel feature.
[0029] [0029] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, selecting the control channel feature includes selecting the control channel feature based on the encoding rate limit, a size of ACK / NACK within the uplink control message, and a number of CRC bits for the uplink control message. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, selecting the control channel feature includes selecting the control channel feature such that an encoding rate of the control channel feature meets the rate limit coding, where the control channel feature may be a minor feature of the control channel feature set.
[0030] [0030] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, selecting the control channel feature includes selecting the control channel feature from the control channel feature set. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for determining that the control channel resource does not meet the encoding rate limit based on the payload size. of the uplink control message. Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for selecting, from the set of control channel resources, a second control channel resource such that a rate of encoding the second control channel feature satisfies the encoding rate limit, where the second control channel feature can be greater than the control channel feature.
[0031] [0031] Some examples of the non-transitory computer-readable method, apparatus and medium described in this document may also include processes, resources, means or instructions for receiving an indication of which of the control channel feature set to use for the control message. uplink, where the indication can be received via an DCI ARI. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, an uplink control channel format may be a sPUCCH 4 format.
[0032] [0032] A wireless communication method is described. The method may include configuring a feature set of an uplink control channel to transmit an uplink control message based on a format and an encoding rate limit of the uplink control message, where the uplink control has a first TTI duration that is less than a second TTI duration, and transmits to an UE an indication of the uplink control channel's feature set to use for the uplink control message.
[0033] [0033] A device for wireless communication is described. The apparatus may include means for configuring a feature set of an uplink control channel for transmitting an uplink control message based on a format and an encoding rate limit of the uplink control message, where the uplink control message has a first TTI duration that is less than a second TTI duration, and means to transmit to an UE an indication of the uplink control channel resource set to be used for the control message uplink.
[0034] [0034] Another device for wireless communication is described. The device can include a processor, memory in electronic communication with the processor, and instructions stored in memory. Instructions can be operable to get the processor to configure a feature set of an uplink control channel for transmitting an uplink control message based on a format and an encoding rate limit of the uplink control message , where the uplink control message has a first TTI duration that is less than a second TTI duration, and transmits to an UE an indication of the uplink control channel resource set to be used for the uplink control.
[0035] [0035] A non-transitory, computer-readable medium for wireless communication is described. The non-transient, computer-readable medium may include operable instructions for getting a processor to configure a feature set of an uplink control channel for transmitting an uplink control message based on a format and an encoding rate limit of the uplink control message, where the uplink control message has a first TTI duration that is less than a second TTI duration, and transmits to an UE an indication of the uplink control channel's feature set to use for the uplink control message.
[0036] [0036] In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, transmitting the indication includes transmitting the indication through an DCI ARI. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, each of the feature sets can be mapped to a number of RBs. In some examples of the non-transitory computer-readable method, apparatus and medium described in this document, the format includes a sPUCCH 4 format. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] [0037] Figure 1 illustrates an exemplary wireless communication system that supports collision prevention for programming requests (SRs) and uplink control information (UCI) according to aspects of this disclosure.
[0038] [0038] Figure 2 illustrates an example of a wireless communication system that supports collision prevention for SRs and UCIs according to aspects of the present disclosure.
[0039] [0039] Figure 3 illustrates an example of a timeline that supports collision prevention for SRs and UCIs according to aspects of the present disclosure.
[0040] [0040] Figure 4 illustrates an example of a process flow in a system that supports collision prevention for SRs and UCI according to aspects of the present disclosure.
[0041] [0041] Figures 5 to 7 show block diagrams of a device that supports collision prevention for SRs and UCI according to aspects of the present disclosure.
[0042] [0042] Figure 8 illustrates a block diagram of a system including user equipment (UE) that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure.
[0043] [0043] Figures 9 to 11 show block diagrams of a device that supports collision prevention for SRs and UCI according to aspects of the present disclosure.
[0044] [0044] Figure 12 illustrates a block diagram of a system including a base station that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure.
[0045] [0045] Figures 13 to 17 illustrate collision prevention methods for SRs and UCI according to aspects of the present disclosure. DETAILED DESCRIPTION
[0046] [0046] Some wireless communication systems may support the use of different transmission time interval (TTI) durations for transmissions between wireless devices. For example, a user device (UE) can be configured for both low-latency and non-low latency communication with a base station. The UE can use a first TTI for non-low latency communication and a second TTI (for example, a shortened TTI (sTTI)) for low latency communication, where sTTI has a duration less than the duration of the first TTI. The first TTI (that is, the longest lasting TTI) may have an inherited configuration - for example, the longest lasting TTI may have a numerology that is based on a standardized radio access technology (RAT), such as Long Term Evolution (LTE). The sTTI may employ a different numerology, which may be compatible with the longest lasting TTI numerology.
[0047] [0047] Wireless communications using different TTI durations can have different hybrid automatic repeat request (HARQ) feedback timing, and the UE can be programmed to overlap transmissions of uplink control (UCI) information and programming requests (SR). For example, a UE may have HARQ feedback to be transmitted on a channel having a longer TTI duration (for example, an inherited or non-low latency physical uplink control channel (PUCCH) and / or shared uplink channel physical (PUSCH) having a duration of 1 millisecond (ms) and SR to be transmitted on a channel having a shorter TTI (for example, a shortened PUCCH (sPUCCH) for an sTTI including two or three symbol periods, partition etc.). In some instances, simultaneous transmission of the HARQ and SR feedback on different channels may not be possible, and the UE may determine whether to transmit UCI in PUCCH or sPUCCH. For example, negative confirmation / confirmation (ACK / NACK) information can be transmitted together with the SR in sPUCCH, while a transmission from an overlapping PUCCH / PUSCH can be discarded to give priority to the sPUCCH.
[0048] [0048] In some cases, the number of HARQ bits can impact the sPUCCH format when used to transmit an SR and the ACK / NACK information. For example, a specific format (for example, format 1a or 1b) of TTIs can be used to transmit up to two ACK / NACK bits of HARQ and SR in sPUCCH. In another example, a different format (for example, format 4) can be used to transmit more than two ACK / NACK bits from HARQ and SR. In an example format of the sPUCCH 4 format (for example, having four resources), one of the four resources configured by Radio Resource Control (RRC) messages can be indicated to a UE through a 2-bit field in information of short downlink control (sDCI). In some examples, the UE may be provided with an SR configuration (for example, via RRC message) in which certain channels can be used for the transmission of SR. The UE can thus determine which channel (for example, PUCCH or sPUCCH), format and resources to use based on an SR setting for logical channels, the number of HARQ bits, and an SR trigger timing. However, in some cases, the UE may not receive an indication of resource configuration due to the lack of a downlink lease, downlink control information (DCI) and an ACK / NACK resource indicator (ARI). As a result, situations can occur where the UE can determine to avoid collisions by consolidating the HARQ and SR feedback on the same channel, but may not be aware of what resources to use on that channel for transmitting ACK / NACK information and an SR.
[0049] [0049] As described in this document, a UE can be configured with features for transmitting SR and ACK / NACK information to avoid collisions between HARQ feedback for a longer TTI and an SR for an sTTI. For example, a particular feature for the sPUCCH 4 format (or the sPUCCH 3 format, depending on the length of the sTTI) can be configured for combined SR and ACK / NACK transmissions. ACK / NACK transmissions can be in response to a downlink message transmitted over a longer TTI having a different length than the sTTI associated with the SR. In other examples, multiple resources can be configured for SR and ACK / NACK transmissions using sPUCCH 4 format, and the UE can select one of the multiple resources based on a smaller set of resources that does not exceed a maximum encoding rate for the size (for example, the number of bits) of the ACK / NACK information. In such cases, the encoding rate for the respective resource sets can be configured by the base station (for example, via RRC message). Additionally or alternatively, the UE may identify a more recent instance of the sPUCCH 4 format (or the sPUCCH 3 format) that has been referred to the UE. In such cases, the UE can transmit the SR and the ACK / NACK information using resources based on the most recent format indication that has been identified. In any case, the techniques described can allow the UE to consistently determine the resources to be used for combined SR transmission and HARQ feedback, and avoid ambiguity in the selection of resources for such transmissions.
[0050] [0050] Aspects of disclosure are initially described in the context of a wireless communication system. The wireless communication system can support different sPUCCH feature configurations. Additional details on resource determination for HARQ and SR in a system that supports collision prevention for SRs and UCI are described. Aspects of the disclosure are further illustrated by and described with reference to device diagrams, system diagrams and flowcharts that refer to collision prevention for SRs and UCI.
[0051] [0051] Figure 1 illustrates an example of a wireless communication system 100 that supports collision prevention for SRs and UCIs according to aspects of the present disclosure. The wireless communication system 100 includes base stations 105, UEs 115, and a core network 130. In some instances, the wireless communication system 100 may be an LTE network, an LTE-Advanced network (LTE-A), an LTE-A Pro network, or the New Radio (NR) network. In some cases, the wireless communication system 100 can support enhanced broadband communications, ultra-reliable communications (for example, mission critical), low latency communications, or communications with low cost and low complexity devices.
[0052] [0052] Base stations 105 can communicate wirelessly with UEs 115 through one or more base station antennas. The base stations 105 described in this document can include or be referred to those skilled in the art as a base transceiver station, radio base station, an access point, a radio transceiver, a Node B, an eNode B (eNB) , a next generation Node B or giga-node B (which can be referred to as gNB), a domestic Node B, a domestic eNode B, or some other suitable terminology. The wireless communication system 100 can include base stations 105 of different types (for example, small cell base stations or macrocells). The UEs 115 described in this document may be able to communicate with various types of base stations 105 and network equipment, including macro eNBs, small cell eNBs, gNBs, relay base stations and the like.
[0053] [0053] Each base station 105 can be associated with a particular geographical coverage area 110, in which communications with several UEs 115 is supported. Each base station 105 can provide communication coverage for a respective geographic coverage area 110 via communication links 125, and the communication links 125 between a base station 105 and an UE 115 can use one or more carriers. The communication links 125 shown on the wireless communication system 100 can include uplink transmissions from an UE 115 to a base station 105, or downlink transmissions from a base station 105 to an UE 115. Downlink transmissions also they can be called direct link streams, while uplink streams can also be called reverse link streams.
[0054] [0054] Geographic coverage area 110 for a base station 105 can be divided into sectors that make up only a portion of geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macrocell, small cell, hotspot or other types of cells or various combinations thereof. In some examples, a base station 105 can be mobile and therefore provide communication coverage for a mobile geographic coverage area
[0055] [0055] The term "cell" refers to a logical communication entity used to communicate with a base station 105 (for example, on a carrier), and can be associated with an identifier to distinguish adjacent cells (for example, a physical cell identifier (PCID), a virtual cell identifier (VCID) operating through the same carrier or a different carrier. In some examples, a carrier can support multiple cells, and different cells can be configured according to different types of protocol (for example, machine type communication (MTC), narrowband Internet of Things (NB-IoT), broadband enhanced mobile (eMBB), or others) that can provide access to different types of devices. In some cases, the term “cell” may refer to a portion of a geographic coverage area 110 (for example, a sector) in which the logical entity operates.
[0056] [0056] UEs 115 can be dispersed in wireless communication system 100, and each UE 115 can be stationary or mobile. A UE 115 can also be referred to as a mobile device, a wireless device, a remote device, a portable device or a subscriber device, or some other suitable terminology, where the “device” can also be referred to as a unit, station, terminal or customer. An UE 115 can also be a personal electronic device, such as a cell phone, personal digital assistant (PDA), tablet, laptop or personal computer. In some instances, an UE 115 may also refer to a local wireless circuit station (WLL), an Internet of Things (IoT) device, an Internet of Everything (IoE) device, an MTC device, or the like, which can be implemented in various articles, such as appliances, automobiles, meters or the like.
[0057] [0057] Some 115 UEs, such as devices
[0058] [0058] Some 115 UEs can be configured to employ modes of operation that reduce energy consumption, such as half-duplex communications (for example, a mode that supports unidirectional communication through transmission or reception, but not transmission and reception simultaneously) . In some instances, half-way communications
[0059] [0059] In some cases, a UE 115 may also be able to communicate directly with other UEs (for example, using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more of a group of UEs 115 using D2D communications may be within coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside coverage area 110 of a base station or, on the other way, they may be unable to receive transmissions from a base station
[0060] [0060] Base stations 105 can communicate with core network 130 and with each other. For example, base stations 105 can interface with core network 130 through back links 132 (for example, through an S1 or other interface). Base stations 105 can communicate with each other via back links 134 (for example, via an X2 or other interface) directly (for example, directly between base stations 105) or indirectly (for example, via core network 130).
[0061] [0061] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing or mobility functions. Core network 130 can be an evolved packet core (EPC), which can include at least one mobility management entity (MME), at least one service gateway (S-GW) and at least one Data Network gateway Package (PDN) (P-GW). The MME can manage non-access stratum functions (eg, control plan), such as mobility, authentication and bearer management for UEs 115 serviced by base stations 105 associated with the EPC. User IP packets can be transferred via S-GW, which can be connected to P-GW. P-GW can provide IP address allocation, as well as other functions. The P-GW can be connected to the IP services of network operators. Operator IP services may include Internet access, Intranet (s), an IP Multimedia Subsystem (IMS) or a Packet Switched (PS) Streaming Service.
[0062] [0062] At least some of the network devices, such as a base station 105, may include subcomponents, such as an access network entity,
[0063] [0063] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz region is known as the decimeter band or frequency region ultra-high (UHF), since wavelengths vary from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental resources. However, the waves can penetrate the structures sufficiently for a macrocell to provide service to the internally located UEs 115. The transmission of UHF waves may be associated with smaller antennas and shorter range (for example, less than 100 km) compared to transmission using the lower frequencies and longer waves of the high frequency (HF) portion or very high frequency ( VHF) of the spectrum below 300 MHz.
[0064] [0064] Wireless communication system 100 can also operate in a super high frequency region (SHF)
[0065] [0065] The wireless communication system 100 can also operate in an extremely high frequency (EHF) region of the spectrum (for example, from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communication system 100 can support millimeter wave (mmW) communications between UEs 115 and base stations 105, and the EHF antennas of the respective devices can be even smaller and more widely spaced than UHF antennas. In some cases, this may facilitate the use of antenna arrays within an UE 115. However, the spread of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The techniques disclosed herein may be used in broadcasts that use one or more different frequency regions, and the designated use of bands in those frequency regions may differ by country or regulatory agency.
[0066] [0066] In some cases, wireless communication system 100 may use licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ Licensed Assisted Access (LAA), LTE-unlicensed radio access technology (LTE-U) or NR technology in an unlicensed band, such as the 5 GHz ISM band. When operating in unlicensed radio spectrum bands, wireless devices, such as base stations 105 and UEs 115, can employ LBT (listen-before-speak) procedures to ensure that a frequency channel is free before to transmit data. In some cases, operations on unlicensed bands may be based on a carrier aggregation (CA) configuration in conjunction with component carriers (CCs) operating on a licensed band (for example, LAA). Unlicensed spectrum operations may include downlink transmissions, uplink transmissions, point-to-point transmissions or a combination of these. Duplexing in the unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD) or a combination of both.
[0067] [0067] In some examples, the base station 105 or UE 115 can be equipped with multiple antennas, which can be used to employ techniques such as diversity of transmission, diversity of reception, communications of multiple inputs and multiple outputs (MIMO) or beam formation. For example, wireless communication system 100 may use a transmission scheme between a transmission device (for example, a base station 105) and a receiving device (for example, a UE 115), where the The transmission is equipped with multiple antennas and the receiving devices are equipped with one or more antennas. MIMO communications can employ multipath signal propagation to increase spectral efficiency, transmitting or receiving multiple signals through different spatial layers, which can be referred to as spatial multiplexing. The multiple signals can, for example, be transmitted by the transmission device via different antennas or different combinations of antennas. Likewise, multiple signals can be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (for example, the same code word) or different data streams. Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.
[0068] [0068] Beam formation, which can also be referred to as spatial filtering, directional transmission or directional reception, is a signal processing technique that can be used on a transmission device or a receiving device (for example, a base 105 or UE 115) to shape or direct an antenna beam (e.g., a transmit beam or receive beam) along a spatial path between the transmitting device and the receiving device. Beam formation can be achieved by combining the signals communicated through antenna elements of an antenna array, such that signals that propagate in specific orientations with respect to an antenna array experience constructive interference, while others experience destructive interference. The adjustment of signals communicated through the antenna elements may include a transmitting device or a receiving device applying certain amplitude and phase deviations to signals carried through each of the antenna elements associated with the device. The adjustments associated with each of the antenna elements can be defined by a set of beamforming weights associated with a particular orientation (for example, with respect to the antenna array of the transmitting or receiving device, or with respect to some other orientation).
[0069] [0069] In one example, a base station 105 may use multiple antennas or antenna arrays to conduct beamform operations for directional communications with a UE 115. For example, some signals (for example, synchronization signals, reference, beam selection signals or other control signals) can be transmitted by a base station 105 multiple times in different directions, which can include a signal being transmitted according to different sets of beamforming weights associated with different directions transmission. Transmissions in different beam directions can be used to identify (for example, base station 105 or a receiving device, such as a UE 115) a beam direction for subsequent transmission and / or reception by base station 105. Some signals, such as data signals associated with a particular receiving device,
[0070] [0070] A receiving device (e.g. UE 115, which can be an example of a mmW receiving device) can experience multiple receiving beams when receiving various signals from base station 105, such as synchronization signals, reference signals, beam selection signals or other control signals. For example, a receiving device can experience multiple receiving directions by receiving through different antenna submatrices, processing signals received according to different antenna submatrices, receiving according to different sets of receiving beamform weight applied to signals received in a plurality of antenna elements of an antenna array, or by processing received signals according to different sets of receiving beamforming weights applied to signals received in a set of antenna elements of an antenna array, any one being able to be referred to as “listening” according to different reception beams or reception directions. In some examples, a receiving device may use a single receiving beam for receiving along a single beam direction (for example, when receiving a data signal). The single receiving beam can be aligned in a determined beam direction based on listening according to different receiving beam directions (for example, a beam direction determined to have a higher signal strength, higher signal-to-noise ratio or otherwise, acceptable signal quality based on listening according to various beam directions).
[0071] [0071] In some cases, the antennas of a 105 or UE 115 base station may be located within one or more antenna arrays, which can support MIMO operations or transmit or receive beam formation. For example, one or more base station antennas or antenna arrays may be colocalized in an antenna array, such as an antenna tower. In some cases, antennas or antenna arrays associated with a base station 105 may be located in several geographic locations. A base station 105 can have an antenna array with a number of rows and columns of antenna ports that base station 105 can use to support the beaming of communications with a UE 115. Likewise, a UE 115 it can have one or more antenna arrays that can support multiple MIMO or beam forming operations.
[0072] [0072] In some cases, the wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. At the user level, carrier communications or Packet Data Convergence Protocol (PDCP) layer can be IP based. A Radio Link Control (RLC) layer can, in some cases, perform packet segmentation and reassembly to communicate through logical channels. A Medium Access Control (MAC) layer can perform priority management and multiplexing of logical channels on transport channels. The MAC layer can also use HARQ to provide retransmission at the MAC layer to improve link efficiency. In the control plane, the RRC protocol layer can provide for the establishment, configuration and maintenance of an RRC connection between a UE 115 and a base station 105 or core network 130 supporting radio bearers for user plane data. In the Physical layer (PHY), transport channels can be mapped to physical channels.
[0073] [0073] A physical downlink control channel (PDCCH) carries DCI in control channel elements (CCEs), which can consist of nine contiguous resource element groups (REGs), where each REG contains 4 resource elements (REs ). DCI includes information on downlink scheduling assignments, uplink resource leases, transmission scheme, uplink power control, HARQ information, modulation and encoding scheme (MCS) and other information. The size and format of DCI messages may differ depending on the type and amount of information that is carried by DCI. For example, if spatial multiplexing is supported, the DCI message size can be large compared to contiguous frequency allocations. Likewise, for a system that employs MIMO, DCI can include additional signaling information. The size and format of the DCI depends on the amount of information, as well as factors such as bandwidth, number of antenna ports and duplexing mode.
[0074] [0074] In some cases, UEs 115 and base stations 105 can support data retransmissions to increase the likelihood that data will be received successfully. HARQ feedback is a technique to increase the likelihood that data will be received correctly over a communication link 125. HARQ may include a combination of error detection (for example, using a cyclic redundancy check (CRC)), direct error correction (FEC) and retransmission (for example, automatic repeat request (ARQ)). HARQ can improve the transfer rate at the MAC layer in poor radio conditions (for example, signal-to-noise conditions). In some cases, a wireless device can support HARQ feedback from the same partition, where the device can provide HARQ feedback (which can also be referred to as ACK / NACK information or ACK / NACK data)
[0075] [0075] PUCCH or sPUCCH can carry UCI and can be mapped to a control channel defined by a code and a number of consecutive resource blocks. Uplink control signaling may depend on the presence of time synchronization for a cell. In some cases, PUCCH resources for SR reporting and channel quality information (CQI) can be assigned (and revoked) through RRC signaling. In some cases, SR resources can be allocated after acquiring synchronization through a random access channel procedure. In other cases, an SR may not be assigned to a UE 115 via RACH (i.e., synchronized UEs 115 may or may not have a dedicated SR channel). In some cases, PUCCH / sPUCCH can be classified into several formats based on the type of information carried. For example, different formats can be used for HARQ feedback of different sizes (for example, 1-bit HARQ feedback vs. 2-bit HARQ feedback, vs. Up to 20 HARQ feedback bits, etc.). In some cases, a base station 105 may be aware of the HARQ feedback size to be provided by a UE 115, which may be based on an amount of transmitted downlink data sent by base station 105. Therefore, the base station 105 may be aware of a PUCCH or sPUCCH format to be used for HARQ feedback transmission.
[0076] [0076] The time intervals in LTE or NR can be expressed in multiples of a basic time unit, which can, for example, refer to a sampling period of Ts ＝ 1 / 30.720.000 seconds). The time intervals of a communication resource can be organized according to radio frames with a duration, each, of 10 ms, in which the frame period can be expressed as Tf = 307,200 Ts. Radio frames can be identified by a number of system frames (SFN) ranging from 0 to
[0077] [0077] In some wireless communication systems, a partition can be further divided into several mini-partitions containing one or more symbols. In some instances, a minipartition or minipartition symbol may be the smallest programming unit. Each symbol can vary in duration, depending on the spacing of the subcarrier or the operating frequency band, for example. In addition, some wireless communication systems may implement partition aggregation, where multiple partitions or mini-partitions are aggregated and used for communication between an UE 115 and a base station 105.
[0078] [0078] The term "bearer" refers to a set of radio frequency spectrum resources having a physical layer structure defined to support communications over a communication link 125. For example, a bearer of a communication link 125 may include a portion of a radio frequency spectrum band that is operated according to physical layer channels for a given radio access technology. Each physical layer channel can carry user data, control information or other signaling. A carrier can be associated with a predefined frequency channel (for example, an evolved universal terrestrial radio access absolute radio number (E-UTRA) (EARFCN)) and can be positioned according to a raster channel for discovery by UEs 115. The carriers can be downlink or uplink (for example, in an FDD mode) or be configured to carry downlink and uplink communications (for example, in a TDD mode). In some examples, the signal waveforms transmitted over a carrier can be composed of multiple subcarriers (for example, using multiport modulation (MCM) techniques, such as OFDM or DFT-s-OFDM).
[0079] [0079] The organizational structure of carriers may be different for different radio access technologies (for example, LTE, LTE-A, LTE-A Pro, NR etc.). For example, communications on a carrier can be organized according to TTIs or partitions, each of which can include user data, as well as control or signaling information to support the decoding of user data. A carrier may also include dedicated acquisition signaling (for example, synchronization signals or system information, etc.) and control signaling that coordinates the operation for the carrier. In some examples (for example, in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers.
[0080] [0080] Physical channels can be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel can be multiplexed on a downlink carrier, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques or hybrid TDM techniques -FDM. In some examples, control information transmitted over a physical control channel can be cascaded between different control regions (for example, between a common control region or common research space and one or more control regions specific to the EU or specific EU research spaces).
[0081] [0081] A carrier can be associated with a particular bandwidth of the radio frequency spectrum and, in some examples, the carrier bandwidth can be referred to as a "system bandwidth" of the carrier or the communication system without wire 100. For example, the carrier bandwidth can be one of a number of predetermined bandwidths for carriers of a particular radio access technology (for example, 1.4, 3, 5, 10, 15, 20, 40 or 80 MHz). In some instances, each serviced UE 115 can be configured to operate over parts or all of the carrier bandwidth. In other examples, some UEs 115 can be configured for operation using a type of narrowband protocol that is associated with a predefined portion or range (for example, set of subcarriers or resource blocks (RBs)) within a carrier (for example, example, “in-band” implementation of a type of narrowband protocol).
[0082] [0082] In a system that uses MCM techniques, a feature element can consist of a symbol period (for example, a modulation symbol duration) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (for example, the order of the modulation scheme). Thus, the more resource elements a UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115. In MIMO systems, a wireless communication resource can refer to a combination of a radio frequency spectrum resource, a time resource and a space resource (for example, space layers), and the use of multiple space layers can still increase the data rate for communications with a UE
[0083] [0083] Wireless communication system devices 100 (for example, base stations 105 or UEs 115) may have a hardware configuration that supports communications over a certain carrier bandwidth, or may be configurable to support communications in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include base stations 105 and / or UEs that can support simultaneous communications through associated carriers with more than a different carrier bandwidth.
[0084] [0084] Wireless communication system 100 can support communication with a UE 115 in multiple cells or carriers, a feature that can be referred to as AC or multi-port operation. A UE 115 can be configured with multiple downlink CCs and one or more uplink CCs according to a carrier aggregation configuration. Carrier aggregation can be used with both FDD and TDD CCs.
[0085] [0085] In some cases, the wireless communication system 100 may use enhanced component carriers (eCCs). An eCC can be characterized by one or more features, including higher frequency or carrier channel bandwidth, shorter symbol duration, shorter TTI duration or modified control channel configuration. In some cases, an eCC can be associated with a carrier aggregation configuration or a dual connectivity configuration (for example, when multiple service cells have a suboptimal or non-optimal return link). An eCC can also be configured for use on unlicensed or shared spectrum (for example, where more than one operator is allowed to use the spectrum). An eCC characterized by broad carrier bandwidth can include one or more segments that can be used by UEs 115 that are not able to monitor all carrier bandwidth or are otherwise configured to use a carrier bandwidth limited (for example, to save energy).
[0086] [0086] In some cases, an eCC may use a different symbol duration than other CCs, which may include the use of a reduced symbol duration compared to the symbol durations of the other CCs. A shorter symbol life can be associated with increased spacing between adjacent subcarriers. A device, such as a UE 115 or a base station 105, using eCCs can transmit broadband signals (for example, according to the frequency channel or carrier bandwidths of 20, 40, 60, 80 MHz etc. .) in reduced symbol durations (for example, 16.67 microseconds (µs)). An eCC TTI can consist of one or multiple symbol periods. In some cases, the duration of TTI (that is, the number of symbol periods in a TTI) can be variable.
[0087] [0087] Wireless communication systems, such as an NR system, can use any combination of licensed, shared and unlicensed spectrum bands, among others. The flexibility of the eCC symbol duration and subcarrier spacing can allow the use of eCC across multiple spectra. In some instances, the shared NR spectrum can increase spectrum utilization and spectral efficiency, specifically through vertical (eg frequency) and horizontal (eg time) resource sharing.
[0088] [0088] Collisions can occur between PUSCH / PUCCH and sPUCCH. For example, PUSCH / PUCCH programmed for transmission during a 1 ms TTI can collide with an SR to be transmitted using an sTTI. If simultaneous transmission is not possible (for example, conflicting transmissions in the same cell, or due to a UE 115 capability that prohibits simultaneous transmission in different cells, etc.), PUSCH / PUCCH transmission may be interrupted, and ACK / NACK PUSCH / PUCCH HARQ can be sent with the SR in the sPUCCH. In cases where the HARQ ACK / NACK information is greater than 2 bits and must be sent in the sPUCCH, the HARQ ACK / NACK information can be included in the sPUCCH in a specific format (for example, format 4). Format 4 includes a number of different options for selecting the resources on which HARQ ACK / NACK information is to be transmitted in sPUCCH. In some instances, when HARQ ACK / NACK information must be included in sPUCCH in format 4, the UE 115 may receive an indication of which format 4 resources the HARQ ACK / NACK information should be transmitted on (for example, an ARI can be received in a grant). However, in cases where transmission of the HARQ ACK / NACK in the sPUCCH is due to a collision between the sPUCCH and a PUSCH / PUCCH already programmed to transmit the HARQ ACK / NACK information, an ARI may not have been received. In such cases, the UE 115 can determine which sPUCCH resources should be used to transmit the SR and ACK / NACK information. The wireless communication system 100 can support the configuration of one or more feature sets for the UE 115 to use for transmitting an SR and ACK / NACK information in sPUCCH, for example, in the absence of a downlink lease when the ACK / NACK information is greater than 2 bits. As an example, a UE 115 can identify that a collision exists between an SR and HARQ feedback, and can identify a resource configured within an sPUCCH for a combined transmission of the SR and HARQ feedback. In other cases, multiple sPUCCH resources can be configured, and the UE 115 can select one of the resources, such that a configured maximum encoding rate is not exceeded when transmitting the SR and the HARQ feedback.
[0089] [0089] Figure 2 illustrates an example of a wireless communication system 200 that supports collision prevention for SRs and UCIs according to aspects of the present disclosure. The wireless communication system 200 can include base station 105-a and UE 115-a, which can be examples of the corresponding devices described with reference to Figure 1. Base station 105-a and UE 115-a can be communicated via a communication link 205 that includes PUCCH / PUSCH 210 and sPUCCH 215. PUCCH / PUSCH 210 and sPUCCH 215 can be on the same or different carriers, and can be TDD or FDD.
[0090] [0090] Base station 105-a can transmit using a sTTI on a downlink channel, which can be assigned or configured for low latency communication
[0091] [0091] The UE 115-a or base station 105-a can be configured to operate using both low-latency and non-low latency communications. Low-latency and non-low-latency communication can use TTIs of different lengths and downlink HARQ timing. UE 115-a or base station 105-a can transmit using a TTI that has a shorter duration than another TTI. The relatively shorter TTI can be referred to as a low latency TTI or an sTTI. Non-low latency TTI may have a longer duration than sTTI. As mentioned above, a non-low latency TTI can also be referred to as an inherited TTI. For example, some earlier versions of a wireless communication standard, such as LTE, may employ such inherited TTIs. As described in this document, non-low latency TTI or inherited TTI can be used in PUCCH / PUSCH 210. PUCCH / PUSCH 210 can also be referred to as the long channel. A low latency TTI or sTTI can be used on sPUCCH 215. Both PUCCH / PUSCH 210 and sPUCCH 215 can contain ACK / NACK of HARQ 220 and SR 225 to be transmitted to base station 105- a.
[0092] [0092] In some cases, the UE 115-a may experience collisions between programmed PUCCH / PUSCH 210 and sPUCCH 215 transmissions (for example, on the same or on different carriers). Collisions can occur between PUCCH / PUSCH 210 and sPUCCH 215 in the same subframe. That is, sPUCCH 215 can be transmitted during a sTTI that overlaps with a programmed PUCCH / PUSCH 210 transmission. If simultaneous transmission by UE 115-a is not possible, PUCCH / PUSCH 210 can be interrupted (that is, one or more bits of PUCCH / PUSCH 210 can be discarded from a transmission), and the UCI (for example, ACK / NACK HARQ 220-a) of the PUCCH / PUSCH 210 can be sent on the sPUCCH 215. Therefore, the UE 115-a can decide which sPUCCH 215 resources should be used to transmit the SR 225-a and ACK / NACK of HARQ 220- The. The SR setting for the logical channel, the number of 1 ms HARQ ACK / NACK bits, and the SR trigger timeline can be considered in the decision and can impact the resources used to transmit the SR and ACK / NACK of HARQ.
[0093] [0093] In some cases, a 1-bit HARQ ACK / NACK 220 and SR 225 can be configured for UE 115-a on two sPUCCH 215 resources based on whether an inherited physical downlink shared channel (PDSCH) is successfully decoded. One resource can be used for an SR 225 and an ACK, and the second resource can be used for an SR 225 and NACK. If ACK / NACK of HARQ 220 is not present, for example, because no downlink transmission has been sent to UE 115-a, and an SR 225 is present, the resource allocated for SR 225 and NACK can be used. The receiving base station 105-a can be aware if any ACK / NACK of HARQ 220 is expected, and determine that only SR 225 is present. If the ACK / NACK of HARQ 220 is present and an SR 225 is not present, the ACK / NACK of HARQ 220 can be transmitted on specific indicated HARQ resources. Base station 105-a can perform a two-hypothesis check for inherited HARQ ACK / NACK when sTTI SR features are configured. Base station 105-a can check both PUCCH / PUSCH 210 and sPUCCH 215 for inherited HARQ ACK / NACK 220-a (for example, since base station 105-a may not know that an SR 225 is being sent).
[0094] [0094] In some cases, a 2-bit HARQ ACK / NACK 220 and SR 225 can be configured for a UE 115-a in four sPUCCH 215 resources based on which, if any, the inherited code word is decoded with success. The four resources can be configured, such that there is the resource to transmit each of SR and ACK-ACK, SR and NACK-NACK, SR and ACK-NACK, and SR and NACK-ACK. Similar to the case of the 1-bit HARQ ACK / NACK described in this document, if the HARQ 220 ACK / NACK is not present, for example, because no downlink transmission was sent to the UE 115-a, and an SR 225 is present, the resource allocated to SR and NACK-NACK can be used. If ACK / NACK of HARQ 220 is present and an SR 225 is not present, the ACK / NACK of HARQ can be transmitted on specific indicated HARQ resources. The base station 105-a can perform a two-hypothesis check for ACK / NACK of inherited HARQ 220-a when SSTI SR features are configured. Base station 105-a can check both PUCCH / PUSCH 210 and sPUCCH for ACK / NACK of inherited HARQ 220-a (for example, since base station 105-a may not know that an SR 225 is being sent).
[0095] [0095] SRs 225 can be configured by RRC based on logical channels. For example, the SR configuration on UE 115-a can be restricted to specific logic channels (for example, sPUCCH and PUCCH). An indication, such as "sPUCCH value" can be used to indicate that the SR cannot be sent on the sPUCCH, and an indication, such as "PUCCH value" indicates that the SR cannot be sent on the PUCCH. In the event that there is no restricted SR configuration, UE 115-a may be allowed to transmit SR 225 on any SR resource on the sPUCCH or PUCCH.
[0096] [0096] If the MAC entity has resources for an SR 225 configured in one of PUCCH or sPUCCH, then these SR resources can be valid for all logical channels. If the MAC entity has resources for an SR 225 configured on both PUCCH and sPUCCH, two cases may be present. The first case may be that PUCCH features are valid if no logical channel restrictions are configured, or if a logical channel restriction allows SR 225 in PUCCH, for any of the logical channels. The second case may be that sPUCCH features are valid if no logical channel restrictions are configured, or if a logical channel restriction allows SR 225 in sPUCCH, for any of the logical channels. In summary, SR 225 for some logical channels can be sent using either PUCCH or sPUCCH, while SR 225 for some other logical channels can be sent on both PUCCH and sPUCCH, and UE 115-a can decide which SR 225 should be mapped.
[0097] [0097] When more than two ACK / NACK bits of HARQ 220-b can be sent in a subpartition TTI, sPUCCH 215 can use a specific format (for example,
[0098] [0098] However, according to various aspects of the disclosure, ACK / NACK of inherited HARQ 220-a and SR 225-a can be sent in the four most recent resources of the sPUCCH 215 as previously indicated to UE 115-a, for example, in the last sDCI received. The previous indication may not be related to the current SR 225 and ACK / NACK of HARQ 220 to be transmitted. In a second example, the sPUCCH 215 format features can be configured for the scenario when no downlink leases are sent, and more than two bits of inherited HARQ ACK / NACK 220 can be carried by the sPUCCH 215 to avoid collision. This resource configuration can allow UE 115-a to efficiently determine resources for HARQ 220-b and SR 225-b ACK / NACK transmissions using sPUCCH 215.
[0099] [0099] More than one sPUCCH 215 format can be used to transmit SR 225-b and HARQ ACK / NACK of more than two bits 220-b. For example, in format 3 and format 4 of sPUCCH, one of the four resources can be indicated to UE 115-a through a two-bit indicator in the DCI. Partition SPUCCH can refer to when a TTI encompasses an entire sPUCCH 215 partition. If both formats 3 and 4 are configured for UE 115-a, then format 3 can be used for 3-11 bits, and the format 4 can be used for 12 or more bits. If only format 3 is configured for UE 115-a, then 3-11 bits can be transmitted. If only format 4 is configured for a UE 115-a, then 3 or more bits can be transmitted.
[0100] [0100] If SR 225 is present, but no downlink lease has been received, then several options may exist for the UE 115-a. In a first option, the inherited HARQ ACK / NACK 220 and SR 225 can be sent in the latest sPUCCH 215 format (for example, format 3 or 4) indicated to UE 115-a, for example, in DCI. The format determination may depend on the number of HARQ bits and the sPUCCH 215 formats configured in the UE 115-a. In a second option, sPUCCH 215 format resources (for example, format 3 or 4) can be configured for the scenario when no downlink lease is sent, and more than two bits of inherited HARQ ACK / NACK can be carried sPUCCH 215 to avoid collision. In some cases, the resource configuration for sPUCCH 215 can be indicated to the UE 115-a via RRC message, or via DCI, or a combination of both. In other cases, sPUCCH features can be pre-configured or predetermined.
[0101] [0101] Multiple features for sPUCCH 215 formats (eg, format 4) can be configured by upper layers for both subpartition and partition sPUCCH. For example, each resource can be mapped to a specific number of resource blocks (for example, one to eight resource blocks). A maximum encoding rate can be defined (for example, configured via RRC message), and depending on the payload size (for example, ACK / NACK bits number of HARQ 220-b) and CRC bits, the UE 115-a can select one of the configured features. When a collision occurs between the PUCCH / PUSCH 210 and the SR 225-b of the sPUCCH 215, the payload size may also include one or more SR bit (s). For example, for a given payload size, if a number of resource blocks is used (for example, the least amount of resource blocks) and the encoding rate remains below the maximum value (for example, it satisfies a rate limit encoding), then the UE 115-a can select the corresponding sPUCCH 215 resources. If the encoding rate is greater than the maximum value (for example, it does not meet the limit), then a greater number of resource blocks can be used, where the greater number of resource blocks can be associated with a rate relatively higher encoding (for example, compared to fewer resource blocks). The UE 115-a can select the smallest number of resource blocks capable of remaining below the maximum encoding rate. The base station 105-a can know the number of ACK / NACK bits of HARQ, the maximum encoding rate, and the configured resources, so the base station 105-a can know, in the case of the PUCCH / PUSCH 210 be discarded as a result of the SR 225-b transmission, which sPUCCH 215 features can be used by the UE 115-a. In some cases, base station 105-a may have to perform a two-hypothesis check to determine whether ACK / NACK of HARQ 220 is present.
[0102] [0102] In some examples, even when collisions may not occur, base station 105-a can configure multiple resources for UCI transmission. For example, base station 105-a can indicate which sPUCCH 215 format 4 resource should be used by UE 115-a via ARI, and can control the number of resource blocks. In such cases, each of the sPUCCH 4 format features configured by the RRC can be mapped to a different number of RBs.
[0103] [0103] Figure 3 illustrates an example of a timeline 300 that supports collision prevention for SRs and UCIs according to aspects of the present disclosure. In some examples, timeline 300 can implement aspects of wireless communication system 100 and 200. Arrow 305 indicates the time axis of timeline 300. A PUCCH / PUSCH 310 transmission and / or a sPUCCH transmission 315 can occur on timeline 300. PUCCH / PUSCH 310 transmission and / or sPUCCH 315 transmission can contain SR and HARQ.
[0104] [0104] As illustrated, PUCCH / PUSCH 310 transmission and sPUCCH 315 transmission can overlap in time and collide. In order to avoid collision, several examples of resource allocation for UCI between PUCCH / PUSCH 310 and sPUCCH 315 are described below. However, there may be cases where a collision cannot be avoided, and an UE 115 can use the techniques described in this document to determine resources for transmitting SR and ACK / NACK information to a 105 base station to further mitigate collisions.
[0105] [0105] If SR for a logical channel is triggered before the PUCCH / PUSCH 310 transmission starts in time
[0106] [0106] If the SR for a logical channel is triggered after the PUCCH / PUSCH 310 transmission starts at time 325, there may be a number of cases to consider. In a first case, the SR can be sent on both PUCCH and sPUCCH, such that no collision can occur if the SR is sent on the next SR resources of PUCCH unless UE 115 determines to map the SR to resource (s) of sPUCCH. In a second case, the SR can be sent on the PUCCH, for example, the SR can wait to be sent on the next SR PUCCH resource. In that case, collisions can be avoided. In a third case, the SR can be sent in sPUCCH and few alternatives can occur. In a first alternative, if sPUCCH 315 collides with an ongoing PUCCH / PUSCH 310, then the SR may not be sent and, instead, may be deferred until the next SR opportunity. In a second alternative, to avoid collision, PUCCH / PUSCH 310 can be discarded or interrupted at time 330 or before the start of the SR opportunity in sPUCCH 315. In this example, the SR and ACK / NACK of HARQ in the PUCCH / PUSCH 310 can be transmitted in an sPUCCH 315 sTTI. The UE 115 can determine the SPUCCH 315 resources to be used in this alternative. In a third alternative, PUCCH / PUSCH 310 including HARQ's ACK / NACK can be discarded or stopped prior to the start of the SR opportunity on sPUCCH 315, and the SR can be sent at its own expense.
[0107] [0107] In some examples, the UE 115 can receive various configurations that can determine how and when the SR and / or ACK / NACK of HARQ is transmitted. For example, SR transmission in PUCCH / PUSCH 310 or sPUCCH 315 can be configured (where the UE 115 can have a choice if no configuration is received). In addition, if the SR transmission can be deferred for a later SR opportunity, it can be configured for the UE 115. The ability of the UE 115 to suspend PUCCH / PUSCH 310, or ACK / NACK of HARQ, or both, can also be configured. When determining which case and alternative to transmit uplink control information, the UE 115 can also consider traffic type (e.g., mobile broadband,
[0108] [0108] As described in this document, there are cases of SR transmissions on the sPUCCH 315 that may still result in collisions with inherited PUCCH / PUSCH ACK / NACK transmission, and the UE 115 may need to determine which resources to use for combined SR and transmissions of ACK / NACK information on sPUCCH 315. For example, when the HARQ ACK / NACK is greater than 2 bits, when the UE 115 is configured for SR transmissions in sPUCCH (for example, transmission in PUCCH / PUSCH 310 can not be configured, or the UE 115 chooses to transmit on sPUCCH 315), and no DCI (or ARI) has been previously received, SR collisions and a 1 ms HARQ ACK / NACK may not be preventable in the cases mentioned above. As a result, when SR can be sent on a sPUCCH 315 sTTI and PUCCH / PUSCH 310 HARQ ACK / NACK can also be sent on sPUCCH 315 sTTI, UE 115 can determine the SPUCCH 315 resources to use. For example, the UE 115 can be configured with features for transmitting SR and ACK / NACK information to avoid collisions between HARQ feedback for a longer TTI and an SR for an sTTI. In such cases, a particular feature for sPUCCH 4 format (or sPUCCH 3 format, depending on the length of the sTTI) can be configured for combined SR and ACK / NACK transmissions. In other examples, multiple resources can be configured for SR and ACK / NACK transmissions using sPUCCH 4 format, and the UE 115 can select one of multiple resources based on a smaller set of resources that does not exceed a maximum encoding rate for the size (for example, the number of bits) of the ACK / NACK information. Additionally or alternatively, the UE 115 can identify a more recent instance of the sPUCCH 4 format (or the sPUCCH 3 format) that has been referred to the UE
[0109] [0109] Figure 4 illustrates an example of a process flow 400 in a system that supports collision prevention for SRs and UCIs according to aspects of the present disclosure. Process flow 400 includes base station 105-b and UE 115-b, which can be examples of a base station 105 and UE 115 as described with reference to Figures 1 and 2. Process flow 400 can describe techniques for collision prevention through the consistent selection of sPUCCH resources for SR transmission and HARQ feedback.
[0110] [0110] At 405, base station 105-b can transmit data to UE 115-b. For example, data may be subject to UE 115-b HARQ feedback. At 410, UE 115-b can identify uplink data (e.g., low latency data, or data associated with sTTI transmissions) ready for transmission, and can identify an SR to be transmitted in sPUCCH. The timing of when the UE 115-b detects an SR trigger can impact when and on what resources the SR is sent, as described with reference to timeline 300 in Figure 3.
[0111] [0111] In 415, UE 115-b can identify ACK / NACK information to be transmitted in PUCCH (or PUSCH), for example, consisting of HARQ feedback for data received in 405. UE 115-b can also identify that PUCCH collides with the identified SR to be transmitted in sPUCCH. For example, PUCCH and sPUCCH are sent in respective TTIs that overlap over time. If simultaneous transmission is not possible by UE 115-b, PUSCH / PUCCH can be interrupted, and the PUSCH / PUCCH HARQ ACK / NACK can be sent on the sPUCCH. UE 115-b can determine the use of sPUCCH 4 format based on the number of bits of HARQ to be transmitted with the SR (for example, when sPUCCH is sent using a TTI duration less than a partition). In other cases, and as described in this document, sPUCCH 3 can be used based on the number of HARQ bits.
[0112] [0112] At 420, UE 115-b can determine sPUCCH resources to be used for transmitting the SR and ACK / NACK information, and map the PUCCH HARQ bits and the SR to the determined sPUCCH resources. For example, to avoid collision, the SR and ACK / NACK of HARQ in the PUCCH / PUSCH can be mapped to an sPUCCH sTTI. UE 115-b can determine the sPUCCH resources to use in this alternative if no downlink, DCI or ARI leases have been received. In one example, the UE 115-b can determine an sPUCCH format (for example, format 3 or format 4) based on a size of the ACK / NACK information, and identify an SR configuration that indicates one or more resources from the set of resources to be used to transmit SR and ACK / NACK information according to the format. That is, a single sPUCCH resource or multiple sPUCCH resources can be configured for the transmission of SR and ACK / NACK information. In some cases, the one or more resources can be configured for the sPUCCH format based on the length of the sTTI with which the sPUCCH is to be transmitted. A maximum encoding rate can be considered by the UE 115-b when mapping HARQ and SR to one or more resource blocks. In this way, UE 115-b can select the smallest number of resource blocks having an encoding rate that is below the maximum encoding rate. In some instances, HARQ feedback information can be associated with communications using TTIs having a duration that is longer than sTTI. That is, there may be no HARQ feedback information for communications using sTTIs, and the HARQ feedback information included with the SR may be for longer sTTIs.
[0113] [0113] In some cases, the UE 115-b can test the resources to be used based on the maximum encoding rate. For example, UE 115-b can identify an encoding rate limit for sPUCCH resources, and can then determine the sPUCCH resources of one or more configured resources based on the encoding rate limit, the size of ACK / NACK information, and a number of CRC bits. In such cases, the UE 115-b may select, from one or more resources, a first sPUCCH resource to transmit the SR and ACK / NACK information, such that an encoding rate of the first resource satisfies the encoding rate limit. based on a payload size of the first resource, where the first resource is a minor resource of one or more resources. In other examples, the UE
[0114] [0114] In some cases, such techniques for resource selection for UCI transmissions can be performed even when there is no collision between SR and inherited ACK / NACK information. For example, UE 115-b can receive an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message, identify the encoding rate limit for the uplink control and, when determining a payload size of the uplink control message, you can select from the set of control channel features a control channel feature based on the encoding rate limit and load size determined value of the uplink control message.
[0115] [0115] Additionally or alternatively, UE 115-b can identify a more recent instance of sPUCCH having the format determined that was indicated to UE 115-b, in which to determine the resources of sPUCCH to be used for transmitting the SR and information ACK / NACK can be based on the most recent instance, or on the given format, or a combination of them.
[0116] [0116] At 425, UE 115-b can transmit SR and ACK / NACK information to base station 105-b via the configured sPUCCH resources. For example, the sPUCCH 3 or 4 format can be used when more than two bits of HARQ and SR are to be transmitted. At 430, base station 105-b can perform a two-hypothesis check for HARQ feedback. For example, base station 105-b can check both the PUCCH / PUSCH and sPUCCH for inherited HARQ ACK / NACK since base station 105-b may not know that an SR is being sent. At 435, base station 105-b can detect the SR and transmitted HARQ feedback.
[0117] [0117] Figure 5 shows a block diagram 500 of a wireless device 505 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. The wireless device 505 can be an example of aspects of an UE 115 as described in this document. The wireless device 505 may include receiver 510, UE communications manager 515, and transmitter 520. The wireless device 505 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0118] [0118] The 510 receiver can receive information such as packets, user data or control information associated with various information channels (for example, control channels, data channels and collision prevention information for SRs and UCI etc. .). The information can be passed on to other components of the device. The receiver 510 can be an example of aspects of the transceiver 835 described with reference to Figure 8. The receiver 510 can use a single antenna or a set of antennas.
[0119] [0119] The UE 515 communications manager can be an example of aspects of the UE 815 communications manager described with reference to Figure 8. The UE 515 communications manager and / or at least some of its various subcomponents can be implemented in hardware, software run by a processor, firmware, or any combination thereof. If implemented in software run by a processor, the functions of the UE 515 communications manager and / or at least some of its various subcomponents can be performed by a general purpose processor, a digital signal processor (DSP), an integrated circuit application-specific (ASIC), a field programmable gate array (FPGA) or other programmable logic device, transistor logic or discrete gate, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure .
[0120] [0120] The UE 515 communications manager and / or at least some of its various subcomponents may be physically located in various positions, including being distributed, such that portions of the functions are implemented in different physical locations by one or more physical devices. In some instances, the UE 515 communications manager and / or at least some of its various subcomponents may be a separate and distinct component according to various aspects of the present disclosure. In other examples, the UE 515 communications manager and / or at least some of its various subcomponents can be combined with one or more other hardware components, including, but not limited to, an input / output (I / O) component , a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof according to various aspects of the present disclosure.
[0121] [0121] The UE 515 communications manager can identify that an SR must be transmitted in a first uplink control channel message having a first TTI duration and identify which ACK / NACK information is programmed for transmission in a second message uplink control channel messages having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. In such cases, the UE 515 communications manager can determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message, determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information, and transmitting the SR and ACK / NACK information on the determined resources of the first uplink control channel message.
[0122] [0122] The communications manager of UE 515 can also receive an indication of a set of control channel resources from an uplink control channel message to be used for an uplink control message, to identify a rate limit of encoding for the uplink control message and determining a payload size of the uplink control message. The UE 515 communications manager can select, from the control channel resource set, a control channel resource based on the encoding rate limit and the determined payload size of the uplink control message and transmit the message uplink control system to a base station 105 using the selected control channel feature.
[0123] [0123] The transmitter 520 can transmit signals generated by other components of the device. In some instances, transmitter 520 may be colocalized with a receiver 510 on a transceiver module. For example, transmitter 520 can be an example of aspects of transceiver 835 described with reference to Figure 8. Transmitter 520 can use a single antenna or a set of antennas.
[0124] [0124] Figure 6 shows a block diagram 600 of a wireless device 605 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. The wireless device 605 can be an example of aspects of a wireless device 505 or a UE 115 as described with reference to Figure 5. The wireless device 605 can include receiver 610, EU communications manager 615, and transmitter 620. The wireless device 605 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0125] [0125] The 610 receiver can receive information, such as packets, user data or control information associated with various information channels (for example, control channels, data channels and collision prevention information for SRs and UCI etc. .). The information can be passed on to other components of the device. The receiver 610 can be an example of aspects of the transceiver 835 described with reference to Figure 8. The receiver 610 can use a single antenna or a set of antennas.
[0126] [0126] The UE 615 communications manager can be an example of aspects of the UE 815 communications manager described with reference to Figure 8. The UE 615 communications manager can also include SR 625 component, collision manager 630, resource component 635, SR 640 transmission component, 645 uplink control message component, and UCI 650 transmitter.
[0127] [0127] The SR 625 component can identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration and determine that the ACK / NACK information must be transmitted with the SR in the first message uplink control channel message based on the first uplink control channel message overlapping with a second uplink control channel message.
[0128] [0128] Collision manager 630 can identify which ACK / NACK information is programmed to transmit on the second uplink control channel message having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. In some examples, collision manager 630 may determine an absence of DCI by including an ARI for the first uplink control channel message, in which to determine the capabilities of the first uplink control channel message to be used for SR transmission and ACK / NACK information is based on the absence of DCI. In some cases, collision manager 630 may receive an SR configuration that indicates that the SR should be transmitted in the first uplink control channel message, and determine that an ACK / NACK information size is greater than two bits .
[0129] [0129] Resource component 635 can determine resources from the first uplink control channel message to be used for transmitting the SR and ACK / NACK information. In some cases, resource component 635 may select, from two or more resources, a first resource to transmit the SR and ACK / NACK information, such that an encoding rate of the first resource meets the encoding rate limit with based on a payload size of the first resource, where the first resource is a smaller resource of the two or more resources. Additionally or alternatively, resource component 635 may select, from two or more resources, a first resource to transmit SR and ACK / NACK information, and select, from two or more resources, a second resource such that a rate of encoding of the second resource satisfies the encoding rate limit (for example, when the first resource does not satisfy the encoding rate limit), where the second resource is greater than the first resource. In some cases, determining the resources of the first uplink control channel message includes determining the resources of the two or more resources based on the encoding rate limit, the size of the ACK / NACK information, and a number of CRC bits.
[0130] [0130] In some examples, resource component 635 may receive an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message. In some cases, resource component 635 may select a control channel resource from the control channel resource set based on the encoding rate limit and the determined payload size of the uplink control message. In some cases, selecting the control channel feature includes selecting the control channel feature such that an encoding rate of the control channel feature meets the encoding rate limit, where the control channel feature is a lower control channel feature set feature. Additionally or alternatively, resource component 635 may select, from the set of control channel resources, a second control channel resource such that one encoding rate of the second control channel resource satisfies the encoding rate limit, in that the second control channel feature is larger than the control channel feature.
[0131] [0131] In some examples, resource component 635 may receive an indication of which of the control channel resource set to use for an uplink control message, where the indication is received via a DCI ARI. Selecting the control channel resource may include selecting the control channel resource based on the encoding rate limit, an ACK / NACK information size within the uplink control message, and a number of CRC bits for the message uplink control. In some cases, an uplink control channel message format is sPUCCH 4 format. In some cases, each of the two or more resources is mapped to a number of RBs. In some cases, selecting the control channel feature includes selecting the control channel feature from the control channel feature set.
[0132] [0132] The SR 640 transmission component can transmit the SR and ACK / NACK information in the resources determined from the first uplink control channel message. In some cases, the SR transmission component can be coupled with a transceiver (for example, including transmitter 620) and can transmit the SR and ACK / NACK information in coordination with or using the transceiver. The uplink control message component 645 can identify an encoding rate limit for the uplink control message, determine a payload size of the uplink control message, and determine that the control channel feature does not satisfy the encoding rate limit based on the payload size of the uplink control message. The UCI 650 transmitter can transmit the uplink control message to a base station 105 using the selected control channel feature.
[0133] [0133] The transmitter 620 can transmit signals generated by other components of the device. In some examples, transmitter 620 may be colocalized with a receiver 610 on a transceiver module. For example, transmitter 620 may be an example of aspects of transceiver 835 described with reference to Figure 8. Transmitter 620 may use a single antenna or set of antennas.
[0134] [0134] Figure 7 shows a block diagram 700 of an EU 715 communications manager that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. The UE 715 communications manager can be an example of aspects of an UE 515 communications manager, an UE 615 communications manager or an UE 815 communications manager described with reference to Figures 5, 6 and 8. The manager EU 715 communications component can include SR 720 component, collision manager 725, resource component 730, SR 735 transmission component, uplink control message component 740, UCI transmitter 745, format manager 750, file manager configuration 755 and encoder 760. Each of these modules can communicate, directly or indirectly, with each other (for example, through one or more buses).
[0135] [0135] The SR 720 component can identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration and determine that the ACK / NACK information must be transmitted with the SR in the first message uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message.
[0136] [0136] The collision manager 725 can identify which ACK / NACK information is programmed for transmission in the second uplink control channel message having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. In some examples, collision manager 725 can determine an absence of DCI by including an ARI for the first uplink control channel message, in which to determine the capabilities of the first uplink control channel message to be used for SR transmission and ACK / NACK information is based on the absence of DCI. In some cases, collision manager 725 may receive an SR configuration that indicates that the SR should be transmitted in the first uplink control channel message, and determine that an ACK / NACK information size is greater than two bits .
[0137] [0137] Resource component 730 can determine resources from the first uplink control channel message to be used for transmitting the SR and ACK / NACK information. In some cases, resource component 730 may select, from two or more resources, a first resource to transmit the SR and the ACK / NACK information, such that an encoding rate of the first resource satisfies the encoding rate limit with based on a payload size of the first resource, where the first resource is a smaller resource of the two or more resources. In addition or alternatively, resource component 730 may select, from two or more resources, a first resource to transmit SR and ACK / NACK information, and select, from two or more resources, a second resource such that a rate of encoding of the second resource satisfies the encoding rate limit (for example, when the first resource does not satisfy the encoding rate limit), where the second resource is greater than the first resource. In some cases, determining the resources of the first uplink control channel message includes determining the resources of the two or more resources based on the encoding rate limit, the size of the ACK / NACK information, and a number of CRC bits.
[0138] [0138] In some examples, resource component 730 may receive an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message. In some cases, the 730 resource component may select, from the control channel resource set, a control channel resource based on the encoding rate limit and the determined payload size of the uplink control message. In some cases, selecting the control channel feature includes selecting the control channel feature such that an encoding rate of the control channel feature meets the encoding rate limit, where the control channel feature is a lower control channel feature set feature. Additionally or alternatively, the resource component
[0139] [0139] In some examples, resource component 730 may receive an indication of which of the control channel resource set to use for an uplink control message, where the indication is received via a DCI ARI. Selecting the control channel resource may include selecting the control channel resource based on the encoding rate limit, an ACK / NACK information size within the uplink control message, and a number of CRC bits for the message uplink control. In some cases, an uplink control channel message format is sPUCCH 4 format. In some cases, each of the two or more resources is mapped to a number of RBs. In some cases, selecting the control channel feature includes selecting the control channel feature from the control channel feature set.
[0140] [0140] The SR 735 transmission component can transmit the SR and ACK / NACK information in the resources determined from the first uplink control channel message. The uplink control message component 740 can identify an encoding rate limit for the uplink control message, determine a payload size of the uplink control message, and determine that the control channel feature does not satisfy the encoding rate limit based on the payload size of the uplink control message. The UCI transmitter 745 can transmit the uplink control message to a base station 105 using the selected control channel feature.
[0141] [0141] The format manager 750 can determine a format of the first uplink control channel message based on a size of the ACK / NACK information, where the format of the first uplink control channel message corresponds to a set of resources. In some examples, format manager 750 can identify a more recent instance of the first uplink control channel message having the given format that was assigned to UE 115, in which to determine the capabilities of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information is based on the most recent instance, or on the given format, or a combination of them. In some cases, determining the format of the first uplink control channel message includes identifying a format configuration for resources based on the first TTI duration, where the first TTI duration can include a partition or duration less than partition, and where the format includes the sPUCCH 3 format or the sPUCCH 4 format.
[0142] [0142] Configuration manager 755 can identify an SR configuration that indicates first resources in the resource set to transmit the SR and ACK / NACK information according to the format, where the determined resources include the first resources. Additionally or alternatively, the configuration manager 755 can identify an SR configuration that indicates two or more resources from the resource set to be used to transmit the SR and ACK / NACK information according to the format, in which the resources determined are selected from the two or more resources based on the SR configuration. In some cases, the SR configuration is received via DCI, RRC message, or a combination of them. In some cases, the SR configuration is pre-configured. In some cases, ACK / NACK information is associated with communications using the second TTI duration.
[0143] [0143] In some examples, the configuration manager 755 can identify the SR configuration of a set of configurations for transmitting the ACK / NACK information, or the SR, or a combination thereof. For example, a first configuration of the configuration set includes an indication of whether the SR should be transmitted in the first uplink control channel message or in the second uplink control channel message (for example, a channel restriction). In addition, a second configuration of the configuration set may indicate whether the SR transmission should be deferred (for example, for a later SR opportunity), and a third configuration of the configuration set may indicate that the second control channel message uplink can be discarded (for example, before transmission or while being transmitted based on an SR shot). In other examples, a fourth configuration of the configuration set may indicate that the second uplink control channel message and ACK / NACK information can be discarded (for example, where only SR is transmitted). The encoder 760 can identify an encoding rate limit for the resources of the first uplink control channel message and determine that the first resource does not meet the encoding rate limit based on a payload size of the first resource.
[0144] [0144] Figure 8 illustrates a diagram of a system 800 including a device 805 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. Device 805 can be an example of or include the components of wireless device 505, wireless device 605 or an UE 115, as described in this document, for example, with reference to Figures 5 and 6. Device 805 can include components for bidirectional data and voice communications including components for transmitting and receiving communications, including UE 815 communications manager, processor 820, memory 825, software 830, transceiver 835, antenna 840 and I / O controller 845. These components may be in electronic communication through one or more buses (for example, bus 810). The 805 device can communicate wirelessly with one or more base stations 105.
[0145] [0145] The 820 processor may include an intelligent hardware device, (for example, a general purpose processor, a DSP, a central processing unit (CPU), a microcontroller, an ASIC, an FPGA, a programmable logic device , a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the 820 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated into the 820 processor. The 820 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks supporting collision avoidance for SRs and UCI ).
[0146] [0146] The 825 memory can include random access memory (RAM) and read-only memory (ROM). The 825 memory can store 830 computer-readable and computer-readable software including instructions that, when executed, cause the processor to perform various functions described in this document. In some cases, the 825 memory may contain, among other things, a basic input / output system (BIOS) that can control basic hardware or software operation, such as interaction with peripheral components or devices.
[0147] [0147] The 830 software may include code to implement aspects of this disclosure, including code to support collision prevention for SRs and UCI. The 830 software can be stored on a non-transitory computer-readable medium, such as system memory or other memory. In some cases, the 830 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform functions described in this document.
[0148] [0148] The 835 transceiver can communicate bidirectionally, through one or more antennas, cable or wireless links as described in this document. For example, the 835 transceiver can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 835 transceiver may also include a modem to modulate the packets and supply the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas. In some cases, the wireless device may include a single 840 antenna. However, in some cases the device may have more than one 840 antenna, which may be able to simultaneously transmit or receive multiple wireless transmissions.
[0149] [0149] The I / O controller 845 can manage input and output signals for the 805 device. The I / O controller 845 can also manage peripherals not integrated in the 805 device. In some cases, the I / O 845 controller can represent a port or physical connection to an external peripheral. In some cases, the I / O 845 controller may use an operating system, such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system . In other cases, the I / O 845 controller can represent or interact with a modem, keyboard, mouse, touch screen or similar device. In some cases, the I / O controller 845 can be implemented as part of a processor. In some cases, a user can interact with the 805 device through the I / O controller 845 or through hardware components controlled by the I / O controller
[0150] [0150] Figure 9 shows a block diagram 900 of a wireless device 905 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. The wireless device 905 can be an example of aspects of a base station 105 as described in this document. The wireless device 905 may include receiver 910, base station communications manager 915, and transmitter 920. The wireless device 905 may also include a processor. Each of these components can be in communication with each other (for example, through one or more buses).
[0151] [0151] The 910 receiver can receive information, such as packages, user data or control information associated with various information channels (for example, control channels, data channels and collision prevention information for SRs and UCI etc. .). The information can be passed on to other components of the device. The receiver 910 can be an example of aspects of the transceiver 1235 described with reference to Figure 12. The receiver 910 can use a single antenna or a set of antennas.
[0152] [0152] The base station communications manager 915 can be an example of aspects of the base station communications manager 1215 described with reference to Figure 12. The base station communications manager 915 and / or at least some of its various subcomponents can be implemented in hardware, software run by a processor, firmware or any combination thereof. If implemented in software run by a processor, the functions of the 915 base station communications manager and / or at least some of its various subcomponents can be performed by a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic or discrete gate, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.
[0153] [0153] The base station communications manager 915 and / or at least some of its various subcomponents may be physically located in various positions, including being distributed such that portions of the functions are implemented in different physical locations by one or more physical devices . In some instances, the base station communications manager 915 and / or at least some of its various subcomponents may be a separate and distinct component according to various aspects of the present disclosure. In other examples, the base station communications manager 915 and / or at least some of its various subcomponents may be combined with one or more other hardware components, including, but not limited to, an I / O component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
[0154] [0154] The base station communications manager 915 can configure a feature set of an uplink control channel for transmitting an uplink control message based on a format and an encoding rate limit for the message. uplink control, where the uplink control message has a first TTI duration that is less than a second TTI duration, and transmits to an UE 115 an indication of the uplink control channel resource set to be used for the uplink control message.
[0155] [0155] The 920 transmitter can transmit signals generated by other components of the device. In some examples, transmitter 920 may be colocalized with a receiver 910 in a transceiver module. For example, transmitter 920 can be an example of aspects of transceiver 1235 described with reference to Figure 12. Transmitter 920 can use a single antenna or a set of antennas.
[0156] [0156] Figure 10 shows a block diagram 1000 of a wireless device 1005 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. Wireless device 1005 can be an example of aspects of a wireless device 905 or a base station 105, as described with reference to Figure
[0157] [0157] The 1010 receiver can receive information, such as packets, user data or control information associated with various information channels (for example, control channels, data channels and collision prevention information for SRs and UCI etc. .). The information can be passed on to other components of the device. The receiver 1010 can be an example of aspects of the transceiver 1235 described with reference to Figure 12. The receiver 1010 can use a single antenna or a set of antennas.
[0158] [0158] The base station communications manager 1015 can be an example of aspects of the base station communications manager 1215 described with reference to Figure 12. The base station communications manager 1015 can also include a format format component. control channel 1025, encoding rate limit component 1030, and resource configuration manager 1035.
[0159] [0159] The 1025 control channel format component can identify a format for an uplink control channel message. In some cases, the format includes sPUCCH 4 format. The 1030 encoding rate limit component can determine an encoding rate limit for the uplink control message.
[0160] [0160] The resource configuration manager 1035 can configure a set of resources from an uplink control channel to transmit the uplink control message based on a format and an encoding rate limit of the uplink control message , where the uplink control message has a first TTI duration that is less than a second TTI duration. In some cases, resource configuration manager 1035 may transmit to an UE 115 an indication of the resource set of the uplink control channel to be used for the uplink control message. In some cases, transmitting the referral includes transmitting the referral via an DCI ARI. In some cases, each of the resource sets is mapped to a number of RBs.
[0161] [0161] The 1020 transmitter can transmit signals generated by other components of the device. In some instances, transmitter 1020 may be colocalized with a receiver 1010 on a transceiver module. For example, transmitter 1020 can be an example of aspects of transceiver 1235 described with reference to Figure 12. Transmitter 1020 can use a single antenna or a set of antennas.
[0162] [0162] Figure 11 shows a block diagram 1100 of a base station communications manager 1115 that supports collision prevention for SRs and UCI in accordance with aspects of the present disclosure. The base station communications manager 1115 can be an example of aspects of a base station communications manager 1215 described with reference to Figures 9, 10 and 12. The base station communications manager 1115 may include a format component control channel 1120, encoding rate limit component 1125, and resource configuration manager 1130. Each of these modules can communicate, directly or indirectly, with each other (for example, through one or more buses).
[0163] [0163] The 1120 control channel format component can identify a format for an uplink control message. In some cases, the format includes sPUCCH 4 format. The encoding rate limit component 1125 can determine an encoding rate limit for the uplink control message. The 1130 resource configuration manager can configure a feature set of an uplink control channel to transmit the uplink control message based on the format and encoding rate limit of the uplink control message, where the uplink control message has a first TTI duration that is less than a second TTI duration. In some examples, the resource configuration manager 1130 may transmit to an UE 115 an indication of the resource set of the uplink control channel to be used for the uplink control message. In some cases, transmitting the indication includes transmitting the indication through an ARI DCI indicator. In some cases, each of the resource sets is mapped to a number of RBs.
[0164] [0164] Figure 12 shows a diagram of a system 1200 including a device 1205 that supports collision prevention for SRs and UCIs in accordance with aspects of the present disclosure. Device 1205 can be an example of or include base station components 105 as described in this document, for example, with reference to Figure 1. Device 1205 can include components for bidirectional data and voice communications including components for transmitting and receiving communications, including base station communications manager 1215, processor 1220, memory 1225, software 1230, transceiver 1235, antenna 1240, network communications manager 1245, and interstation communications manager 1250. These components can be in electronic communication via one or more buses (for example, bus 1210). The 1205 device can communicate wirelessly with one or more 115 UEs.
[0165] [0165] The 1220 processor may include an intelligent hardware device, (for example, a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a logic component) discrete transistor or gate, a discrete hardware component, or any combination thereof). In some cases, the 1220 processor can be configured to operate a memory array using a memory controller. In other cases, a memory controller can be integrated into the 1220 processor. The 1220 processor can be configured to execute computer-readable instructions stored in memory to perform various functions (for example, functions or tasks supporting collision avoidance for SRs and UCI ).
[0166] [0166] Memory 1225 can include RAM and ROM. The 1225 memory can store computer executable and computer readable software 1230 including instructions that, when executed, cause the processor to perform various functions described in this document. In some cases, the 1225 memory may contain, among other things, a BIOS that can control basic hardware or software operation, such as interaction with peripheral components or devices.
[0167] [0167] The 1230 software may include code to implement aspects of this disclosure, including code to support collision prevention for SRs and UCI. The 1230 software can be stored on a non-transitory computer-readable medium, such as system memory or other memory. In some cases, the 1230 software may not be directly executable by the processor, but it can cause a computer (for example, when compiled and run) to perform functions described in this document.
[0168] [0168] The 1235 transceiver can communicate bidirectionally, through one or more antennas, cable or wireless links, as described in this document. For example, transceiver 1235 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The 1235 transceiver may also include a modem to modulate the packets and supply the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas. In some cases, the wireless device may include a single 1240 antenna. However, in some cases, the device may have more than one 1240 antenna, which may be able to simultaneously transmit or receive multiple wireless transmissions.
[0169] [0169] The network communications manager 1245 can manage communications with the core network (for example, through one or more cable return links). For example, the network communications manager 1245 can manage the transfer of communications data to client devices, such as one or more UEs 115.
[0170] [0170] Interstation 1250 communications manager can manage communications with another base station 105, and may include a controller or programmer to control communications with UEs 115 in cooperation with other 105 base stations. For example, interstation 1250 communications manager can coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques, such as beam formation or joint transmission. In some instances, the Interstation 1250 communications manager may provide an X2 interface within an LTE / LTE-A wireless network technology to provide communication between base stations 105.
[0171] [0171] Figure 13 shows a flow chart illustrating a 1300 collision prevention method for SRs and UCIs in accordance with aspects of the present disclosure. The method 1300 operations can be implemented by a UE 115 or its components, as described in this document. For example, method 1300 operations can be performed by an UE communications manager, as described with reference to Figures 5 to 8. In some examples, an UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described in this document. Additionally or alternatively, the UE 115 can perform aspects of the functions described in this document using special purpose hardware.
[0172] [0172] In 1305, UE 115 can identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration. 1305 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1305 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0173] [0173] In 1310, the UE 115 can identify which ACK / NACK information is programmed for transmission in a second uplink control channel message having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. 1310 operations can be performed according to the methods described in this document. In certain examples, aspects of 1310 operations can be performed by a collision manager, as described with reference to Figures 5 to 8.
[0174] [0174] In 1315, UE 115 can determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message. 1315 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1315 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0175] [0175] In 1320, the UE 115 can determine resources of the first uplink control channel message to be used for transmitting the SR and the ACK / NACK information. 1320 operations can be performed according to the methods described in this document. In certain examples, aspects of 1320 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0176] [0176] In 1325, the UE 115 can transmit the SR and ACK / NACK information on the resources determined from the first uplink control channel message. 1325 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1325 operations can be performed by an SR transmission component, as described with reference to Figures 5 to 8.
[0177] [0177] Figure 14 shows a flowchart illustrating a 1400 collision prevention method for SRs and UCIs in accordance with aspects of the present disclosure. The 1400 method operations can be implemented by a UE 115 or its components, as described in this document. For example, method 1400 operations can be performed by an UE communications manager, as described with reference to Figures 5 to 8. In some examples, an UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described in this document. Additionally or alternatively, the UE 115 can perform aspects of the functions described in this document using special purpose hardware.
[0178] [0178] In 1405, UE 115 can identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration. 1405 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1405 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0179] [0179] In 1410, UE 115 can identify which ACK / NACK information is programmed for transmission in a second uplink control channel message having a second TTI duration that is longer than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. 1410 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1410 operations can be performed by a collision manager, as described with reference to Figures 5 to 8.
[0180] [0180] In 1415, UE 115 can determine a format of the first uplink control channel message based on a size of the ACK / NACK information, where the format of the first uplink control channel message corresponds to a feature set. The 1415 operations can be performed according to the methods described in this document. In certain examples, aspects of 1415 operations can be performed by a format manager, as described with reference to Figures 5 to 8.
[0181] [0181] In 1420, UE 115 can determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message. 1420 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1420 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0182] [0182] In 1425, the UE 115 can optionally identify an SR configuration that indicates first resources in the resource set to be used to transmit the SR and ACK / NACK information according to the format. 1425 operations can be performed according to the methods described in this document. In certain examples, aspects of 1425 operations can be performed by a configuration manager, as described with reference to Figures 5 to 8.
[0183] [0183] In 1430, the UE 115 can determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information, where the determined resources include the first resources. 1430 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1430 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0184] [0184] In 1435, the UE 115 can transmit the SR and ACK / NACK information on the resources determined from the first uplink control channel message. 1435 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1435 operations can be performed by an SR transmission component, as described with reference to Figures 5 to 8.
[0185] [0185] In another option, in 1440, UE 115 can identify a more recent instance of the first uplink control channel message having the format determined that was assigned to UE 115. 1440 operations can be performed according to methods described in this document. In certain examples, aspects of the 1440 operations can be performed by a format manager, as described with reference to Figures 5 to 8.
[0186] [0186] In 1445, the UE 115 can determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information based on the most recent instance. 1445 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1445 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0187] [0187] In 1450, the UE 115 can transmit the SR and ACK / NACK information on the resources determined from the first uplink control channel message. 1450 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1450 operations can be performed by an SR transmission component, as described with reference to Figures 5 to 8.
[0188] [0188] Figure 15 shows a flow chart illustrating a 1500 collision prevention method for SRs and UCIs in accordance with aspects of the present disclosure. The 1500 method operations can be implemented by a UE 115 or its components, as described in this document. For example, method 1500 operations can be performed by an UE communications manager, as described with reference to Figures 5 to 8. In some examples, an UE 115 can execute a set of codes to control the functional elements of the device to perform the functions described in this document. Additionally or alternatively, the UE 115 can perform aspects of the functions described in this document using special purpose hardware.
[0189] [0189] In 1505, UE 115 can identify that an SR should be transmitted in a first uplink control channel message having a first TTI duration. 1505 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1505 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0190] [0190] In 1510, the UE 115 can identify which ACK / NACK information is programmed for transmission in a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time. The 1510 operations can be performed according to the methods described in this document. In certain examples, aspects of 1510 operations can be performed by a collision manager, as described with reference to Figures 5 to 8.
[0191] [0191] In 1515, UE 115 can determine a format of the first uplink control channel message based on a size of the ACK / NACK information, where the format of the first uplink control channel message corresponds to a feature set. 1515 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1515 operations can be performed by a format manager, as described with reference to Figures 5 to 8.
[0192] [0192] In 1520, the UE 115 can determine that ACK / NACK information must be transmitted with the SR in the first uplink control channel message based on the first uplink control channel message overlapping with the second uplink control channel message. 1520 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1520 operations can be performed by an SR component, as described with reference to Figures 5 to 8.
[0193] [0193] In 1525, the UE 115 can identify an SR configuration that indicates two or more resources from the resource set to be used to transmit the SR and ACK / NACK information according to the format, in which the resources determined are selected from the two or more resources based on the SR configuration. 1525 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1525 operations can be performed by a configuration manager, as described with reference to Figures 5 to 8.
[0194] [0194] In 1530, UE 115 can identify an encoding rate limit for the resources of the first uplink control channel message. The 1530 operations can be performed according to the methods described in this document. In certain examples,
[0195] [0195] In 1535, UE 115 can determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information. In some cases, determining the resources of the first uplink control channel message includes determining the resources of the two or more resources based on the encoding rate limit, the size of the ACK / NACK information, and a number of CRC bits. 1535 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1535 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0196] [0196] In 1540, the UE 115 can transmit the SR and ACK / NACK information on the resources determined from the first uplink control channel message. 1540 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1540 operations can be performed by an SR transmission component as described with reference to Figures 5 to 8.
[0197] [0197] Figure 16 shows a flow chart illustrating a 1600 collision prevention method for SRs and UCIs in accordance with aspects of the present disclosure. The 1600 method operations can be implemented by a UE 115 or its components as described in this document. For example, operations of method 1600 can be performed by an UE communications manager as described with reference to Figures 5 to 8. In some examples, an UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described in this document. Additionally or alternatively, the UE 115 can perform aspects of the functions described in this document using special purpose hardware.
[0198] [0198] In 1605, the UE 115 can receive an indication of a set of control channel resources from an uplink control channel to be used for an uplink control message. 1605 operations can be performed according to the methods described in this document. In certain examples, aspects of 1605 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0199] [0199] In 1610, the UE 115 can identify an encoding rate limit for the uplink control message. 1610 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1610 operations can be performed by an uplink control message component as described with reference to Figures 5 to 8.
[0200] [0200] In 1615, the UE 115 can determine a payload size of the uplink control message. 1615 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1615 operations can be performed by an uplink control message component, as described with reference to Figures 5 to 8.
[0201] [0201] In 1620, the UE 115 can select, from the control channel resource set, a control channel resource based on the encoding rate limit and the determined payload size of the uplink control message. 1620 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1620 operations can be performed by a resource component, as described with reference to Figures 5 to 8.
[0202] [0202] In 1625, the UE 115 can transmit the uplink control message to a base station 105 using the selected control channel feature. The 1625 operations can be performed according to the methods described in this document. In certain examples, aspects of the 1625 operations can be performed by a UCI transmitter, as described with reference to Figures 5 to 8.
[0203] [0203] Figure 17 shows a flow chart illustrating a 1700 collision prevention method for SRs and UCIs in accordance with aspects of the present disclosure. The 1700 method operations can be implemented by a base station 105 or its components, as described in this document. For example, method 1700 operations can be performed by a base station communications manager, as described with reference to Figures 9 to 12. In some examples, a base station 105 can execute a set of codes to control the elements functionalities of the device to perform the functions described in this document. In addition or alternatively, the base station 105 can perform aspects of the functions described in this document using special purpose hardware.
[0204] [0204] In 1705, base station 105 can configure a feature set of an uplink control channel for transmitting an uplink control message based on a format and a control message encoding rate limit uplink, where the uplink control message has a first TTI duration that is less than a second TTI duration. 1705 operations can be performed according to the methods described in this document. In certain examples, aspects of 1705 operations can be performed by a resource configuration manager as described with reference to Figures 9 to 12.
[0205] [0205] In 1710, the base station 105 can transmit, to a user equipment (UE), an indication of the set of resources of the uplink control channel to be used for the uplink control message. 1710 operations can be performed according to the methods described in this document. In certain examples, aspects of 1710 operations can be performed by a resource configuration manager as described with reference to Figures 9 to 12.
[0206] [0206] It should be noted that the methods described above describe possible implementations, and that operations and steps can be rearranged or otherwise modified and that other implementations are possible. In addition, aspects of two or more of the methods can be combined.
[0207] [0207] The techniques described in this document can be used for various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA) , orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. A CDMA system can implement radio technology, such as CDMA2000, Universal Terrestrial Radio Access (UTRA) etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be commonly referred to as CDMA2000 1X, 1X etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD) etc. UTRA includes Broadband CDMA (WCDMA) and other CDMA variants. A TDMA system can implement radio technology, such as the Global System for Mobile Communications (GSM).
[0208] [0208] An OFDMA system can implement radio technology, such as Ultra-Mobile Broadband (UMB), E-UTRA, Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20 , Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR and GSM are described in documents of the organization called “3rd Generation Partnership Project” (3GPP). CDMA2000 and UMB are described in documents from an organization called “3rd Generation Partnership Project 2” (3GPP2). The techniques described in this document can be used for the radio systems and technologies mentioned above, as well as other radio systems and technologies. Although aspects of an LTE system,
[0209] [0209] A macrocell usually covers a relatively wide geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs 115 with service subscriptions with the network provider. A small cell can be associated with a lower power base station 105, compared to a macrocell, and a small cell can operate in the same or different frequency bands (for example, licensed, unlicensed, etc.) as the macrocells . Small cells can include pico-cells, femto-cells and microcells according to several examples. A peak cell, for example, can cover a small geographical area and can allow unrestricted access by UEs 115 with service subscriptions with the network provider. A femto-cell can also cover a small geographical area (for example, domestic) and can provide access restricted by UEs 115 having an association with the femto-cell (for example, UEs 115 in a Closed Subscriber Group (CSG), UEs 115 for home users and the like). An eNB for a macrocell can be referred to as an eNB macro. A small cell eNB can be referred to as a small cell eNB, a pico-eNB, a femto-eNB or a domestic eNB. An eNB can support one or multiple (for example, two, three, four and the like) cells and can also support communications using one or multiple CCs.
[0210] [0210] The system or systems 100 described in this document may support synchronous or asynchronous operation. For synchronous operation, base stations 105 may have similar frame timings, and transmissions from different base stations 105 may be approximately time aligned. For asynchronous operation, base stations 105 may have different frame timings, and transmissions from different base stations 105 may not be time aligned. The techniques described in this document can be used for either synchronous or asynchronous operations.
[0211] [0211] The information and signals described in this document can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination of these.
[0212] [0212] The various blocks and illustrative modules described in connection with the present invention can be implemented or executed with a general purpose processor, DSP, ASIC, FPGA or other programmable logic device (PLD), discrete or logic port transistor components, discrete hardware components, or any combination thereof designed to perform the functions described here. A general purpose processor can be a microprocessor, but alternatively, the processor can be any processor, controller,
[0213] [0213] The functions described in this document can be implemented in hardware, software executed by a processor, firmware or any combination of these. If implemented in software run by a processor, the functions can be stored in or transmitted as one or more instructions or code in a computer-readable medium. Other examples and implementations are within the scope of the invention and appended claims. For example, due to the nature of the software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring or combinations of any of these. Resources implementing functions can also be physically located in various positions, including distributed, such that parts of the functions are implemented in different physical locations.
[0214] [0214] Computer-readable media includes media and non-transitory computer storage media, including any media that facilitates the transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general purpose or special purpose computer. For example, and not by way of limitation, non-transitory computer-readable media may comprise RAM, ROM, electrically erasable programmable read-only memory (EEPROM), compact disk ROM (CD-ROM) or other optical disk storage, storage on magnetic disk or other magnetic storage devices, or any other non-transitory medium that can be used to transport or store desired program code media in the form of instructions or data structures that can be accessed by a general purpose computer or special-purpose processor, or a general-purpose or special-purpose processor. In addition, any connection is appropriately called a computer-readable medium. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies, such as infrared, radio and micro- Waves, then, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies, such as infrared, radio and microwave, are included in the definition of medium. Disk and disk, as used in this document, include CD, laser disk, optical disk, digital versatile disk (DVD), floppy disks and Blu-ray disks, where disks generally reproduce data magnetically , while discs reproduce data optically with a laser. Combinations of those listed above are also included in the scope of computer-readable media.
[0215] [0215] As used in this document, including in the claims, the term "or" when used in a list of items (for example, a list of items preceded by a phrase such as "at least one of" or "one or more of ”) indicates an inclusive list, such that, for example, a list of at least one of A, B or C means A or B or C or AB or AC or BC or ABC (that is, A and B and C) . Also, as used in this document, the phrase “based on” should not be interpreted as referring to a closed set of conditions. For example, an exemplary feature that is described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present invention. In other words, as used in this document, the phrase “based on” should be interpreted in the same way as the phrase “based, at least in part, on”.
[0216] [0216] In the attached Figures, components or similar resources may have the same reference label. In addition, several components of the same type can be distinguished by adding a dash to the reference label and a second label that differentiates similar components. If only the first reference label is used in the specification, the description applies to any similar component having the same first reference label, regardless of the second reference label, or another subsequent reference label.
[0217] [0217] The description presented in this document, in connection with the attached drawings, describes exemplary configurations and does not represent all the examples that can be implemented within the scope of the claims. The term “exemplary” used in this document means “serving as an example, instance or illustration” and not,
[0218] [0218] The description presented here is provided to allow a person skilled in the art to produce or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the invention should not be limited to the examples and concepts described here, but it should be in accordance with the broader scope consistent with the new principles and characteristics disclosed here.

权利要求:
Claims (65)
[1]
1. Method for wireless communication on user equipment (UE), comprising: identifying that a programming request (SR) must be transmitted in a first uplink control channel message having a first transmission time interval duration (TTI); identify which acknowledgment / negative acknowledgment (ACK / NACK) is programmed to transmit in a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, where the first uplink control channel and the second uplink control channel message overlap in time; determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based, at least in part, on the first uplink control channel message overlapping with the second uplink control channel message uplink control; determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information; and transmitting the SR and ACK / NACK information on the resources determined from the first uplink control channel message.
[2]
2. Method according to claim 1, further comprising: determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information, on which the format of the first uplink control channel message corresponds to a plurality of resources; and identifying an SR configuration that indicates first resources of the plurality of resources to transmit the SR and the ACK / NACK information according to the format, in which the determined resources comprise the first resources.
[3]
A method according to claim 2, wherein the ACK / NACK information is associated with communications using the second TTI duration.
[4]
A method according to claim 2, in which determining the format of the first uplink control channel message comprises: identifying the format based, at least in part, on the first duration of TTI, wherein the first duration of TTI comprises one of a partition or a duration less than the partition, and in which the format comprises a short uplink control physical channel format (sPUCCH) 3 or a format of sPUCCH 4.
[5]
5. Method according to claim 2, in which identifying the SR configuration comprises: identifying the SR configuration of a set of configurations for transmitting the ACK / NACK information, or the SR, or a combination thereof.
[6]
A method according to claim 5, wherein a first configuration of the configuration set comprises an indication of whether the SR should be transmitted in the first uplink control channel message or in the second uplink control channel message.
[7]
7. Method according to claim 5, wherein a second configuration of the configuration set indicates whether the SR transmission should be deferred.
[8]
8. The method of claim 5, wherein a third configuration of the configuration set indicates that the second uplink control channel message is to be discarded.
[9]
9. Method according to claim 5, in which a fourth configuration set indicates that the second uplink control channel message and the ACK / NACK information must be discarded.
[10]
10. Method according to claim 2, in which the SR configuration is received via downlink control information (DCI), radio resource control message (RRC), or a combination thereof.
[11]
11. Method according to claim 2, wherein the SR configuration is pre-configured.
[12]
12. The method of claim 1, further comprising: determining that a size of the ACK / NACK information is greater than two bits.
[13]
13. The method of claim 1, further comprising: determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information, on which the format of the first uplink control channel message corresponds to a plurality of resources; and identifying an SR configuration that indicates two or more resources from the plurality of resources to be used to transmit the SR and ACK / NACK information according to the format, in which the determined resources are selected from the two or more resources based on in the SR configuration.
[14]
14. The method of claim 13, further comprising: identifying an encoding rate limit for the resources of the first uplink control channel message, in which determining the resources of the first uplink control channel message comprises: determine the resources of the two or more resources based, at least in part, on the encoding rate limit, the size of the ACK / NACK information, and a number of cyclic redundancy check (CRC) bits.
[15]
15. Method, according to claim 14, further comprising: selecting, from the two or more resources, a first resource to transmit the SR and the ACK / NACK information, such that a coding rate of the first resource satisfies the limit of encoding rate based on a payload size of the first resource, where the first resource is a smaller resource of the two or more resources.
[16]
16. Method, according to claim 14, further comprising: selecting, from the two or more resources, a first resource to transmit the SR and the ACK / NACK information; determine that the first resource does not meet the encoding rate limit based on a payload size of the first resource; and selecting, from the two or more resources, a second resource, such that an encoding rate of the second resource satisfies the encoding rate limit, where the second resource is greater than the first resource.
[17]
17. The method of claim 16, wherein each of the two or more resources is mapped to a number of resource blocks (RBs).
[18]
18. The method of claim 16, wherein determining the format of the first uplink control channel message comprises: identifying the format based, at least in part, on the first duration of TTI, wherein the first duration of TTI comprises one of a partition or a duration less than the partition, and in which the format comprises a short uplink control physical channel format (sPUCCH) 3 or a format of sPUCCH 4.
[19]
19. The method of claim 1, further comprising: determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information, on which the format of the first uplink control channel message corresponds to a plurality of resources; and identifying a more recent instance of the first uplink control channel message having the given format that has been indicated to the UE, in which to determine the resources of the first uplink control channel message to be used for transmitting the SR and the information from ACK / NACK is based, at least in part, on the most recent instance, or on the given format, or a combination of them.
[20]
20. The method of claim 19, wherein determining the format of the first uplink control channel message comprises: identifying a format configuration for the resources based, at least in part, on the first TTI duration, the first duration of TTI comprising a partition or duration shorter than the partition, and wherein the format comprises a short uplink control physical channel format (sPUCCH) 3 or an sPUCCH 4 format.
[21]
21. The method of claim 1, further comprising: determining an absence of downlink control information (DCI) comprising an ACK / NACK (ARI) resource indicator for the first uplink control channel message, in that determining the capabilities of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information is based on the absence of the DCI.
[22]
22. The method of claim 1, further comprising: receiving an SR configuration that indicates that the SR should be transmitted in the first uplink control channel message.
[23]
23. Method for wireless communication in a user equipment (UE), comprising: receiving an indication of a plurality of control channel resources from an uplink control channel to be used for an uplink control message; identify an encoding rate limit for the uplink control message; determine a payload size of the uplink control message; selecting, from the plurality of control channel resources, a control channel resource based, at least in part, on the encoding rate limit and the determined payload size of the uplink control message; and transmit the uplink control message to a base station using the selected control channel feature.
[24]
24. The method of claim 23, wherein selecting the control channel resource comprises: selecting the control channel resource based, at least in part, on the encoding rate limit, a size of confirmation information / negative acknowledgment (ACK / NACK) within the uplink control message, and a number of cyclic redundancy check (CRC) bits for the uplink control message.
[25]
25. The method of claim 23, wherein selecting the control channel resource comprises: selecting the control channel resource such that an encoding rate of the control channel resource satisfies the encoding rate limit, in that the control channel feature is a minor feature of the plurality of control channel features.
[26]
26. The method of claim 23, wherein selecting the control channel resource comprises: selecting the control channel resource from the plurality of control channel resources; determine that the control channel feature does not meet the encoding rate limit based on the payload size of the uplink control message; and selecting, from the plurality of control channel resources, a second control channel resource, such that a coding rate of the second control channel resource satisfies the encoding rate limit, wherein the second control channel resource is larger than the control channel feature.
[27]
27. The method of claim 23, further comprising: receiving an indication of which of the plurality of control channel resources to use for the uplink control message, wherein the indication is received via a confirmation resource indicator (ACK / NACK) of downlink control information (DCI).
[28]
28. The method of claim 23, wherein a uplink control message format is a short uplink control physical channel format (sPUCCH)
4.
[29]
29. A method for wireless communication at a base station, comprising: configuring a plurality of resources from an uplink control channel to transmit an uplink control message based, at least in part, on a format and a encoding rate limit of the uplink control message, wherein the uplink control message has a first transmission time interval (TTI) duration that is less than a second TTI duration; and transmitting, to a user equipment (UE), an indication of the plurality of resources of the uplink control channel to be used for the uplink control message.
[30]
30. The method of claim 29, wherein transmitting the indication comprises: transmitting the indication through a negative confirmation / confirmation feature indicator (ACK / NACK) of downlink control information (DCI).
[31]
31. The method of claim 29, wherein each of the plurality of resources is mapped to a number of resource blocks (RBs).
[32]
32. The method of claim 29, wherein the format comprises a short uplink control physical channel format (sPUCCH) 4.
[33]
33. Apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory and executable by the processor to take the device to: identify that a programming request (SR) must be transmitted in a first uplink control channel message having a first transmission time interval (TTI) duration ; identify which acknowledgment / negative acknowledgment (ACK / NACK) is programmed to transmit in a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, where the first uplink control channel and the second uplink control channel message overlap in time; determine that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based, at least in part, on the first uplink control channel message overlapping with the second uplink control channel message uplink control; determine resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information; and transmitting the SR and ACK / NACK information on the resources determined from the first uplink control channel message.
[34]
34. Apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory and executable by the processor to cause the device to: receive an indication of a plurality of control channel resources from an uplink control channel to be used for an uplink control message;
identify an encoding rate limit for the uplink control message; determine a payload size of the uplink control message; selecting, from the plurality of control channel resources, a control channel resource based, at least in part, on the encoding rate limit and the determined payload size of the uplink control message; and transmit the uplink control message to a base station using the selected control channel feature.
[35]
35. Apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in memory and executable by the processor to take the device to: identify a format of an uplink control channel, the uplink control channel having a first transmission time interval (TTI) duration that is less than one second duration of TTI; determine an encoding rate limit for an uplink control message; configuring a plurality of uplink control channel resources for transmitting the uplink control message based, at least in part, on the format and the encoding rate limit; and transmitting, to a user equipment (UE), an indication of the plurality of resources of the uplink control channel to be used for the uplink control message.
[36]
36. An apparatus for wireless communication, comprising: means for identifying that a programming request (SR) must be transmitted in a first uplink control channel message having a first transmission time interval (TTI) duration; means for identifying which negative confirmation / confirmation (ACK / NACK) information is programmed for transmission in a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, where the first uplink control channel message and the second uplink control channel message overlap in time; means for determining that ACK / NACK information should be transmitted with the SR in the first uplink control channel message based, at least in part, on the first uplink control channel message overlapping with the second uplink control message. uplink control channel; means for determining resources of the first uplink control channel message to be used for transmitting the SR and ACK / NACK information; and means for transmitting the SR and ACK / NACK information on the resources determined from the first uplink control channel message.
[37]
37. The apparatus of claim 36, further comprising:
means for determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and means for identifying an SR configuration that indicates first resources of the plurality of resources to be used to transmit the SR and ACK / NACK information according to the format, in which the determined resources comprise the first resources.
[38]
38. Apparatus according to claim 37, wherein the means for determining the format of the first uplink control channel message further comprises: means for identifying the format based, at least in part, on the first duration of TTI, wherein the first TTI duration comprises one of a partition or a duration less than the partition, and where the format comprises a short uplink control physical channel format (sPUCCH) 3 or an sPUCCH 4 format.
[39]
39. The apparatus of claim 37, wherein the means for identifying the SR configuration further comprises: means for identifying the SR configuration of a set of configurations for transmitting ACK / NACK information, or the SR, or a combination of them.
[40]
40. Apparatus according to claim 39, wherein a first configuration of the configuration set comprises an indication of whether the SR is to be transmitted in the first uplink control channel message or the second uplink control channel message.
[41]
41. Apparatus according to claim 39, wherein a second configuration of the configuration set indicates whether the SR transmission is to be granted.
[42]
42. The apparatus of claim 39, wherein a third configuration of the configuration set indicates that the second uplink control channel message must be discarded.
[43]
43. Apparatus according to claim 39, wherein a fourth configuration set indicates that the second uplink control channel message and the ACK / NACK information must be discarded.
[44]
44. Apparatus according to claim 37, wherein the SR configuration is received via downlink control information (DCI), radio resource control message (RRC), or a combination thereof.
[45]
45. Apparatus according to claim 37, wherein the SR configuration is pre-configured.
[46]
46. The apparatus of claim 36, further comprising: means for determining that a size of the ACK / NACK information is greater than two bits.
[47]
47. The apparatus of claim 36, further comprising: means for determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information,
wherein the format of the first uplink control channel message corresponds to a plurality of resources; and means for identifying an SR configuration that indicates two or more resources from the plurality of resources to be used to transmit the SR and ACK / NACK information according to the format, in which the determined resources are selected from the two or more resources based on the SR configuration.
[48]
48. An apparatus according to claim 47, further comprising: means for identifying an encoding rate limit for the resources of the first uplink control channel message, wherein the instruction for determining the resources of the first uplink channel message uplink controls are executable by the processor to take the device to: means to determine the resources of the two or more resources based, at least in part, on the encoding rate limit, the size of the ACK / NACK information and a number cyclic redundancy check (CRC) bits.
[49]
49. The apparatus according to claim 48, further comprising: means for selecting, from the two or more resources, a first resource for transmitting the SR and the ACK / NACK information, such that a coding rate of the first resource satisfies the encoding rate limit based on a payload size of the first resource, where the first resource is a smaller resource of the two or more resources.
[50]
50. Apparatus according to claim 48, further comprising: means for selecting, from the two or more resources, a first resource for transmitting the SR and the ACK / NACK information; means for determining that the first resource does not meet the encoding rate limit based on a payload size of the first resource; and means for selecting, from the two or more resources, a second resource such that an encoding rate of the second resource satisfies the encoding rate limit, where the second resource is greater than the first resource.
[51]
51. Apparatus according to claim 47, wherein each of the two or more resources is mapped to a number of resource blocks (RBs).
[52]
52. Apparatus according to claim 47, wherein the means for determining the format of the first uplink control channel message further comprises: means for identifying the format based, at least in part, on the first TTI duration, wherein the first TTI duration comprises one of a partition or a duration less than the partition, and where the format comprises a short uplink control physical channel format (sPUCCH) 3 or an sPUCCH 4 format.
[53]
53. The apparatus of claim 36, further comprising: means for determining a format of the first uplink control channel message based, at least in part, on a size of the ACK / NACK information, wherein the format the first uplink control channel message corresponds to a plurality of resources; and means for identifying a more recent instance of the first uplink control channel message having the given format that was indicated to the UE, in which to determine the resources of the first uplink control channel message to be used for transmitting the SR and the ACK / NACK information is based, at least in part, on the most recent instance, or on the given format, or a combination of them.
[54]
54. Apparatus according to claim 53, wherein the means for determining the format of the first uplink control channel message further comprises: means for identifying a format configuration for the resources based, at least in part, on the first TTI duration, the first TTI duration comprising a partition or duration less than the partition, and the format comprising a short uplink control physical channel format (sPUCCH) 3 or a sPUCCH 4 format.
[55]
55. Apparatus according to claim 36, further comprising: means for determining an absence of downlink control information (DCI) comprising an ACK / NACK (ARI) resource indicator for the first uplink control channel message , in which determining the capabilities of the first uplink control channel message to be used for transmitting the SR and the ACK / NACK information is based on the absence of the DCI.
[56]
56. Apparatus according to claim 36, further comprising:
means for receiving an SR configuration that indicates that the SR should be transmitted in the first uplink control channel message.
[57]
57. An apparatus for wireless communication, comprising: means for receiving an indication of a plurality of control channel resources from an uplink control channel to be used for an uplink control message; means for identifying an encoding rate limit for the uplink control message; means for determining a payload size of the uplink control message; means for selecting, from the plurality of control channel resources, a control channel resource based, at least in part, on the encoding rate limit and the determined payload size of the uplink control message; and means for transmitting the uplink control message to a base station using the selected control channel feature.
[58]
58. Apparatus according to claim 57, wherein the means for selecting the control channel resource further comprises: means for selecting the control channel resource based, at least in part, on the encoding rate limit, a size of acknowledgment / negative acknowledgment (ACK / NACK) within the uplink control message, and a number of cyclic redundancy check bits (CRC) for the uplink control message.
[59]
59. Apparatus according to claim 57, wherein the means for selecting the control channel resource further comprises: means for selecting the control channel resource such that an encoding rate of the control channel resource satisfies the limit encoding rate, where the control channel feature is a minor feature of the plurality of control channel features.
[60]
60. An apparatus according to claim 57, wherein the means for selecting the control channel resource further comprises: means for selecting the control channel resource from the plurality of control channel resources; means for determining that the control channel resource does not meet the encoding rate limit based on the payload size of the uplink control message; and means for selecting, from the plurality of control channel resources, a second control channel resource, such that a coding rate of the second control channel resource satisfies the encoding rate limit, wherein the second channel resource control is greater than the control channel feature.
[61]
61. Apparatus according to claim 57, further comprising: means for receiving an indication of which of the plurality of control channel resources to use for the uplink control message, wherein the indication is received via a resource indicator negative confirmation / confirmation (ACK / NACK) of downlink control information (DCI).
[62]
62. The apparatus of claim 57, wherein a uplink control channel format is a short uplink control physical channel format (sPUCCH)
4.
[63]
63. An apparatus for wireless communication, comprising: means for configuring a plurality of resources of an uplink control channel for the transmission of an uplink control message based, at least in part, on a format and a rate limit encoding the uplink control message, wherein the uplink control message has a first transmission time interval (TTI) duration that is less than a second TTI duration; and means for transmitting, to a user equipment (UE), an indication of the plurality of resources of the uplink control channel to be used for the uplink control message.
[64]
64. Apparatus according to claim 63, wherein the means for transmitting the indication further comprises: means for transmitting the indication via a negative confirmation / confirmation feature indicator (ACK / NACK) of downlink control information ( DCI).
[65]
65. Apparatus according to claim 63, wherein each of the plurality of resources is mapped to a number of resource blocks (RBs).

类似技术:

---

公开号 | 公开日 | 专利标题

---

JP2020511068A|2020-04-09|Signaling for multiplexing low latency and side link communications

---

US10993254B2|2021-04-27|Downlink control information signaling schemes for bandwidth part switching

---

BR112020016112A2|2020-12-08|COLLISION PREVENTION FOR PROGRAMMING REQUIREMENTS AND UPLINK CONTROL INFORMATION

---

JP2021501513A|2021-01-14|Semi-persistent scheduling management in New Radio

---

BR112020010379A2|2020-10-20|reference signal and collision handling of preemptable resources

---

BR112020020200A2|2021-01-05|SIGNALING ALTERNATIVE MODULATION CODING SCHEMES USING A SCALE SCHEDULING FACTOR

---

BR112020016594A2|2020-12-15|UPLINK BEAM ASSIGNMENT

---

BR112020010368A2|2020-11-24|reference signal timing and timing window considerations

---

BR112020014795A2|2020-12-08|TRANSMISSION ENERGY CONTROL COMMAND HANDLING THROUGH MULTIPLE DOWNLINK CONTROL INFORMATION

---

KR20210003130A|2021-01-11|Rate matching across downlink transmission repetitions in wireless communications

---

BR112020005322A2|2020-09-24|listen before speaking and channel reservation for millimeter wave systems

---

JP6894581B2|2021-06-30|Uplink control channel resource allocation for new radio |

---

US20190349137A1|2019-11-14|Repetition-based transmission

---

EP3776954A1|2021-02-17|Transport block repetition handling for downlink and uplink transmissions

---

BR112020008785A2|2020-10-20|power control in directional beam environments

---

BR112020005616A2|2020-09-29|user equipment-specific schedule request retries

---

BR112020019040A2|2021-01-05|POWER CONTROL TECHNIQUES FOR TRANSMISSION OF UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATIONS

---

BR112020005187A2|2020-09-15|common research space design to improve wireless coverage

---

JP2021507631A|2021-02-22|Carrier aggregation for improved downlink throughput in shortened transmit time interval operation

---

BR112020015785A2|2020-12-15|DETERMINATION OF MODULATION TABLE AND CHANNEL QUALITY INDICATOR REPORT FOR SHORT TRANSMISSION TIME INTERVALS

---

KR20220004049A|2022-01-11|Techniques for Wireless Communication Using Preconfigured Downlink Resources

---

KR20210129047A|2021-10-27|out-of-order processing

---

KR20210040046A|2021-04-12|Retransmission and fallback for autonomous uplink transmission

---

KR20200092327A|2020-08-03|User equipment shift randomization for uplink control channel transmission

---

BR112021008623A2|2021-08-03|control search space overlap indication

同族专利:

---

公开号 | 公开日

---

KR20200118035A|2020-10-14|

---

AU2019217447A1|2020-07-30|

---

TW201935979A|2019-09-01|

---

WO2019156969A1|2019-08-15|

---

CN111684748A|2020-09-18|

---

US20190246432A1|2019-08-08|

---

US10939470B2|2021-03-02|

---

JP2021513258A|2021-05-20|

---

SG11202006438RA|2020-08-28|

---

EP3750266A1|2020-12-16|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

CN108886778A|2016-03-30|2018-11-23|交互数字专利控股公司|Reduce the time delay of the physical channel in LTE network|

---

US10069613B2|2016-04-01|2018-09-04|Motorola Mobility Llc|Method and apparatus for scheduling uplink transmissions with reduced latency|

---

WO2018088415A1|2016-11-09|2018-05-17|株式会社Ｎｔｔドコモ|User terminal and wireless communication method|WO2018182383A1|2017-04-01|2018-10-04|엘지전자 주식회사|Method for transmitting or receiving uplink signal for terminal supporting short transmission time interval in wireless communication system, and apparatus therefor|

---

KR102356912B1|2017-06-16|2022-01-28|삼성전자 주식회사|Method and apparatus for transmitting a TCP ACK in a communication system|

---

WO2020030982A1|2018-08-09|2020-02-13|LenovoPte. Ltd.|Uplink transmission power allocation|

---

CN110536464A|2019-08-14|2019-12-03|中兴通讯股份有限公司|A kind of transmission method, device, communication node and medium|

---

WO2021068159A1|2019-10-10|2021-04-15|Qualcomm Incorporated|Systems and methods for handling sidelink feedback signaling|

---

WO2021096960A1|2019-11-15|2021-05-20|Qualcomm Incorporated|Determining priorities for overlapping channels|

---

KR20210128477A|2019-12-31|2021-10-26|지티이 코포레이션|Systems and methods for determining information indicative of cancellation|

---

WO2021142636A1|2020-01-14|2021-07-22|Oppo广东移动通信有限公司|Uplink transmission method and terminal device|

---

US20210243786A1|2020-01-31|2021-08-05|Qualcomm Incorporated|Uplink control information piggyback restrictions for ultra-reliable/low-latency communications|

---

WO2021185315A1|2020-03-18|2021-09-23|Shanghai Langbo Communication Technology Company Limited|Method and device in ue and base station used for wireless communication|

---

CN111585738B|2020-05-07|2021-08-24|四川创智联恒科技有限公司|Method for simultaneously transmitting scheduling request and HARQ feedback|

---

WO2021258385A1|2020-06-26|2021-12-30|Qualcomm Incorporated|Dynamic uplink control multiplexing between physical uplink channels|

法律状态:
2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

---

申请号 | 申请日 | 专利标题

---

US201862627620P| true| 2018-02-07|2018-02-07|

---

US62/627,620|2018-02-07|

---

US16/267,326|US10939470B2|2018-02-07|2019-02-04|Collision avoidance for scheduling requests and uplink control information|

---

US16/267,326|2019-02-04|

---

PCT/US2019/016641|WO2019156969A1|2018-02-07|2019-02-05|Collision avoidance for scheduling requests and uplink control information|

---