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    • 专利摘要:
    it is an improved b-node (enb), a user equipment (eu) and a method for communicating with the use of licensed and unlicensed long term evolution bands (lte) which are generally described herein. document. enb can transmit a trigger signal to eu. the trigger signal may be transmitted in the licensed and unlicensed band of lte and inform the transmitting eu of a reference signal from enb to eu in the unlicensed band. the trigger signal may correspond to a single reference signal transmission or multiple periodic or consecutive reference signal transmissions. The trigger signal or a separate trigger signal can be used to inform the EU about a data transmission. the trigger signal may be transmitted at any point before or in the same subframe, as the reference signal and the reference signal may be transmitted before, after or in the same subframe as the data.
    公开号:BR112016026729B1
    申请号:R112016026729-0
    申请日:2015-06-04
    公开日:2019-09-24
    发明作者:Seunghee Han；Shafi Bashar；Huaning Niu；Jong-Kae Fwu
    申请人:Intel IP Corporation；
    IPC主号:
    专利说明:

    Invention Patent Descriptive Report for IMPROVED NODE B, USER EQUIPMENT, COMMUNICATION METHOD USING A LICENSED AND NON-LICENSED BAND AND STORAGE MEDIA LEGIBLE BY A NON-TRANSITIONAL COMPUTER FOR APERIODIC SIGNAL AND TRANSMISSION OF REFERENCE SIGNAL.
    CLAIM OF PRIORITY [0001] This application claims the benefit of priority of Application No. standard US 14 / 669,366, filed on March 26 , 2015, which claims the benefit of priority to Provisional Patent Application No. Serial US 62 / 016.001, entitled [RAN1] APERIODIC BEACON SIGNAL TRANSMISSION FOR LTE-U, filed on June 23, 2014, in which all of these are incorporated by reference in their entirety for reference in their entirety.
    TECHNICAL FIELD [0002] The modalities belong to the radio access networks. Some modalities refer to communication programming information for both licensed and non-licensed spectra. BACKGROUND [0003] Long Term Evolution (LTE) networks operate in a number of specific frequency bands and deliver a wide variety of information for an increasing number and type of user equipment (UE). Typically, the use of different communication techniques is limited to licensed bands regulated by the federal government. The growth in network usage has sparked an interest in expanding LTE usage beyond these licensed bands. Unlicensed LTE (LTE-U) allows UEs to make use of unlicensed spectrum in communications. Other networks, such as WiFi and Bluetooth, coexist with LTE-U in the unlicensed spectrum. This presents a problem as periodic reference signaling messages occur between the LTE network and the UEs. The messages of fate
    2/27 Reference location can include a cell specific reference signal (CRS), which is used to program transmissions to multiple UEs and for channel estimation used in coherent demodulation in the UE. Reference signaling messages may include a Channel Quality Indication (CQI) indicating a measurement of channel quality, a channel status information reference signal (CSI-RS) used for measurement purposes and a Discovery Reference (DRS) specific to an individual UE. These and other periodic messages, thus, not only provide information related to the communication channel, but also enable time and / or frequency tracking of communications with the UE. These periodic messages can cause problems in communications between WiFi and Bluetooth devices and / or cause additional interference in communications between WiFi and Bluetooth devices. In addition, due to the nature of transmissions in the unlicensed band in contrast to the transmissions requested in a licensed band, some of the periodic messages may not reach the intended UEs.
    [0004] Therefore, it would be desirable to provide an effective signaling mechanism for LTE-U devices while minimizing disturbances for other devices operating on the same unlicensed spectrum. BRIEF DESCRIPTION OF THE FIGURES [0005] In the Figures, which are not necessarily drawn to scale, similar numbers can describe similar components in different views. Similar numbers with different letter suffixes can represent different cases of similar components. The Figures generally illustrate, by way of example, but not by way of limitation, several modalities discussed in this document.
    [0006] Figure 1 shows an example of a portion of an end-to-end network architecture of an LTE network with several
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    3/27 network components according to some modalities.
    [0007] Figure 2 illustrates a functional block diagram of an eNB according to some modalities according to some modalities.
    [0008] Figure 3 illustrates a flow chart of an eNB method transmitting an aperiodic signaling signal according to some modalities.
    [0009] Figures 4A and 4B illustrate resource blocks according to some modalities.
    DETAILED DESCRIPTION OF THE INVENTION [0010] The following description and drawings sufficiently illustrate the specific modalities to allow persons skilled in the art to practice them. Other modalities may incorporate structural, logical, electrical, process changes and other changes. Portions and resources of some modalities can be included or replaced with those of other modalities. The modalities presented in the claims cover all available equivalents of those claims.
    [0011] Figure 1 shows an example of a portion of an end-to-end network architecture of a long-term evolution network (LTE) with several network components according to some modalities. Network 100 may comprise a radio access network (RAN) (for example, as shown, the evolved universal terrestrial radio access network or E-UTRAN) 101 and core network 120 (for example, shown as a core evolved packet (EPC) coupled together with an S1 115 interface. For convenience and brevity, only a portion of the core network 120, as well as RAN 101, is shown in the example.
    [0012] Core network 120 may include mobility management entity (MME) 122, server communication port
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    4/27 (server GW) 124 and packet data network communication port (PDN GW) 126. RAN 101 includes evolved B nodes (eNBs) 104 (which can operate as base stations) to communicate with equipment User (UE) 102. eNBs 104 can include macro eNBs and low power (LP) eNBs.
    [0013] MME 122 may be similar, in function, to the control plan for GPRS Support Nodes Legacy Servers (SGSN). MME 122 can manage aspects of access mobility such as port selection and tracking area list management. GW server 124 can terminate the interface in relation to RAN 101 and route data packets between RAN 101 and core network 120. In addition, GW server 124 can be a local mobility anchor point for automatic inter-change eNB and can also provide an anchorage for inter-3GPP mobility. Other responsibilities may include legal interception, downloading and some policy enforcement. Server GW 124 and MME 122 can be deployed on a separate physical node or physical nodes. The PDN GW 126 can terminate an SGi interface with respect to the packet data network (PDN). The PDN GW 126 can route data packets between the EPC 120 and the external PDN and can carry out policy enforcement and load data collection. The PDN 126 GW can also provide an anchor point for mobility devices with non-LTE access. The external PDN can be any type of IP network, as well as an IP Multimedia Subsystem (IMS) domain. PDN GW 126 and server GW 124 can be deployed on a single physical node or separate physical nodes.
    [0014] The GW of PDN 126 and MME 122 can also be connected to a location service 130. The UE and eNB can communicate with location service 130 through the user plane (U plane) and / or plane control (Plan C). The find service
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    5/27 tion 130 can be a physical or logical entity that can collect measurement data and other location information from UE 102 and eNB 104 and assist UE 102 with an estimate of the position of UE 102, providing a location calculation based on network, as indicated in more detail below.
    [0015] eNBs 104 (macro and micro) can end in the air interface protocol and can be the first point of contact for an UE 102. In some embodiments, an eNB 104 can perform several logical functions for RAN 101, including however, without limitation, an RNC (radio network controller functions), such as radio bearer management, dynamic uplink and downlink radio resource management, and data packet programming and mobility management. According to the modalities, UEs 102 can be configured to communicate OFDM communication signals with an eNB 104 through a multi-carrier communication channel according to an OFDMA communication technique. OFDM signals can comprise a plurality of orthogonal subcarriers.
    [0016] The S1 115 interface can be the interface that separates RAN 101 and EPC 120. It can be divided into two parts: S1-U, which can carry traffic data between eNBs 104 and GW server 124 and S1-MME, which can be a signaling interface between eNBs 104 and MME 122. The X2 interface can be the interface between eNBs 104. The X2 interface can comprise two parts, the X2-C and the X2- U. X2-C can be the control plane interface between eNBs 104, while X2-U can be the user plane interface between eNBs 104.
    [0017] With cellular networks, LP cells can typically be used to extend coverage to indoor areas where external signals do not reach well, or to add capacity to
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    6/27 network in areas with dense use. In particular, it may be desirable to improve the coverage of a wireless communication system with the use of cells of different sizes, macrocells, microcells, picocells and femtocells, to increase the system performance. Cells of different sizes can operate in the same frequency band, such as the unlicensed LTE band, or they can operate in different frequency bands where each cell operates in a different frequency band or just cells of different sizes that operate in bands different frequency. As used herein, the term low potency (LP) eNB refers to any relatively low potency eNB suitable for implanting a narrower cell (narrower than a macrocell) such as a femtocell, a picocell or a microcell. Femtocell cell eNBs can typically be provided by a mobile network operator to their residential or business customers. A femtocell can typically be the size of a residential communications port or smaller and, in general, can connect to the user's broadband line. The femtocell can connect to the mobile operator's mobile network and provide extra coverage in a range of typically 30 to 50 meters. In this way, an LP eNB can be an eNB femtocell since it is coupled via the PDN 126 GW. Similarly, a picocell can be a wireless communication system that typically covers a small area, such as internal constructions ( offices, shopping centers, train stations, etc.), or more recently in an aircraft interior. A picocell eNB can, in general, connect via the X2 link to another eNB as an eNB macro through its base station controller (BSC) functionality. In this way, LP eNB can be implanted with a picocell eNB, since it is coupled to an eNB macro through an X2 interface. Picocell eNBs
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    7/27 or other LP eNBs can incorporate some or all of the functionality of an eNB macro. In some cases, this can be referred to as an access point base station or corporate femtocell.
    [0018] Communication over an LTE network is divided into up to 10 ms frames, each containing ten 1 ms subframes. Each subframe, in turn, can contain two 0.5 ms intervals. Each range can contain 6 to 7 symbols, depending on the system used. A resource block (RB) can be the smallest unit of resources that can be allocated to a UE. A resource block can be 180 kHz wide in frequency and 1 long interval in time. In frequency, the resource blocks can be either 12 x 15 kHz subcarriers or wide 24 x 7.5 kHz subcarriers. For most channels and signals, 12 subcarriers can be used per resource block. In Frequency Division Duplexing (FDD) mode, both uplink frames and downlink frames can be 10 ms and separate frequency (full duplex) or time (half duplex). In Time Division Duplexing (TDD), downlink or downlink subframes can be transmitted on the same frequency and multiplexed in the time domain. A downlink resource grid can be used for downlink transmissions from an eNB to an UE. The grid can be a temperature-frequency grid, which is the physical resource on the downlink in each interval. Each column and row of the resource grid can correspond to an OFDM symbol and an OFDM subcarrier, respectively. The duration of the resource grid in the time domain can correspond to an interval. The smallest unit of temperature frequency in a resource grid can be represented as a resource element. Each resource grid can comprise a
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    8/27 number of resource blocks above, which describe the mapping of certain physical channels to resource elements. Each resource block can comprise 12 (subcarriers) * 14 (symbols) = 168 resource elements.
    [0019] There are several different physical downlink channels that can be conducted using such resource blocks. Two of these physical downlink channels can be the physical downlink control channel (PDCCH) and the shared physical downlink channel (PDSCH). Each subframe can be divided into PDCCH and PDSCH. The PDCCH can normally occupy the first two symbols of each subframe and carry, among other things, information about the transport format and resource allocations related to the PDSCH channel, as well as H-ARQ information related to the uplink shared channel. The PDSCH can conduct user data and upper layer signaling to a UE and occupy the rest of the subframe. Typically, downlink programming (assigning control and shared channel resource blocks to UEs within a cell) can be performed on eNB based on channel quality information provided from the UEs to eNB and then the information downlink resource assignment can be sent to each UE in the PDCCH used for (assigned to) the UE. The PDCCH can contain downlink control (DCI) information in one of several formats that tell the UE how to find and decode data, transmitted in the PDSCH in the same subframe, of the resource grid. The DCI format can provide details such as the number of resource blocks, type of resource allocation, modulation scheme, transport block, redundancy version, encoding rate, etc. Each DCI format can have a cyclic redundancy code (CRC) and be mixed with a Tem Identifier
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    9/27 Radio Network porter (RNTI) that identifies the target UE for which the PDSCH is intended. The use of UE-specific RNTI may limit the decoding of the DCI format (and, consequently, the corresponding PDSCH) to the intended UE only.
    [0020] Figure 2 illustrates a functional block diagram of a communication device according to some modalities. Communication device 200 may be a UE or eNB and may include physical layer (PHY) circuitry 202 for transmitting and receiving electrical radio frequency signals to and from the communication device, other eNBs, other UEs or other devices with use one or more antennas 201 electrically connected to the PHY circuitry. The PHY 202 circuitry may include circuitry for modulation / demodulation, upward / downward conversion, filtering, amplification, etc. Communication device 200 may also include the media access control (MAC) layer circuitry 204 for controlling access to the wireless medium and for configuring frames or packets for communication over the wireless medium. The communication device 200 can also include the processing circuitry 206 and the memory 208 arranged to configure the various elements of the cellular device to perform the operations described herein. Memory 208 can be used to store information to configure processing circuitry 206 to perform operations.
    [0021] In some embodiments, the communication device 200 may be part of a portable wireless communication device, such as a personal digital assistant (PDA), a laptop-type computer or portable computer, with wireless communication capability, a web tablet computer, cordless phone, smart phone, cordless headset, instant messenger,
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    10/27 an instant messaging device, a digital camera, an access point, a television, a medical device (for example, a heart rate monitor, a blood pressure monitor, etc.), a wearable device, a sensor or other device that can receive and / or transmit information wirelessly. In some embodiments, the communication device 200 may include one or more of a keyboard, a display, a non-volatile memory port, multiple antennas, a graphics processor, an application processor, speakers and other mobile device elements. The display can be an LCD screen that includes a touch screen.
    [0022] The one or more antennas 201 used by the communication device 200 may comprise one or more directional or omnidirectional antennas, which include, for example, dipole antennas, monopole antennas, patch-type antennas, circuit antennas, microfiche antennas or other types of antennas suitable for transmitting RF signals. In some embodiments, instead of two or more antennas, a single antenna with multiple openings can be used. In these modalities, each opening can be considered a separate antenna. In some modalities of multiple inputs, multiple outputs (MIMO), the antennas can be effectively separated to take advantage of the spatial diversity and different channel characteristics that can result between each antenna of a receiving station and each of the antennas of a broadcasting station. In some MIMO modalities, the antennas can be separated by up to 1/10 of a wavelength or more.
    [0023] Although the communication device 200 is illustrated as having several separate functional elements, one or more of the functional elements can be combined and can be deployed by combining elements configured by software, such as processing elements that include processes
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    11/27 digital signal providers (DSPs) and / or other hardware elements. For example, some elements may comprise one or more microprocessors, DSPs, application specific integrated circuit (ASICs), radio frequency integrated circuits (RFICs) and combinations of various hardware and logic circuitry to perform at least the functions described herein. document. In some embodiments, the functional elements may refer to one or more operating processes on one or more processing elements.
    [0024] The described modalities can be implemented in one or a combination of hardware, firmware and software. The modalities can also be implemented as the instructions stored in a computer-readable storage medium, which can be read and executed by at least one processor to perform the operations described in this document. A computer-readable storage medium can include any non-transitory mechanism for storing information in a machine-readable form (for example, a computer). For example, a computer-readable storage medium may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash memory devices, and other media devices and media. storage. In these modalities, one or more processors can be configured with instructions to perform the operations described in this document.
    [0025] In some embodiments, the processing circuitry 206 may be configured to receive OFDM communication signals through a multi-carrier communication channel according to an OFDMA communication technique. OFDM signals can comprise a plurality of subject
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    12/27 orthogonal tractors. In some modalities of multiple broadband carriers, the cellular device 200 can operate as part of a wireless broadband access network (BWA) communication network, as a Worldwide Interoperability for Microwave Access communication network (WiMAX) or Universal Terrestrial Radio Access network (UTRAN) Partnership Project 3 Generation (3GPP) or Evolution communication network Long Term (LTE) or an Advanced communication LTE network or a network fifth generation LTE communication (5G) or a high speed downlink / uplink access communication network (HSDPA / HSUPA), although the scope of the invention is not limited in this respect.
    [0026] Figure 3 illustrates a flow chart of an eNB method transmitting an aperiodic signaling signal according to some modalities. The aperiodic signal signal (also referred to herein as a trigger signal) can be transmitted on the licensed or unlicensed band while the aperiodic reference signal indicated by the aperiodic signal signal can be transmitted on the unlicensed band. The aperiodic reference signal indicated by the aperiodic signal signal can be transmitted in addition to the typical periodically transmitted reference signals (which can be transmitted periodically up to several hundred distant ms). In other embodiments, the aperiodic reference signal indicated by the aperiodic signal signal may be transmitted instead of the periodically transmitted reference signals. In different modalities, the timing of the different steps can be adjusted and some of the steps shown may not be present. The aperiodic reference signal may include at least one of a cell-specific reference signal (CRS), a Channel Quality Indication (CQI), an information reference signal from this
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    13/27 of the channel (CSI-RS) and a Discovery Reference Signal (DRS). The CRS can be used by the UE for cell search and initial acquisition of communication with the eNB, downlink channel quality measurements and downlink channel estimation for demodulation or coherent detection. CQI can provide eNB with channel quality information that includes carrier level received signal strength (RSSI) and bit error rate (BER) indication. CSI-RS can be used to estimate the channel and reporting channel quality information. DRS can include one or more of the above signs and can be specific to an individual UE.
    [0027] In step 302, the eNB can determine whether the transmission of a signal to one or more particular UEs is desired. For example, eNB can detect or request information from the UE or other communication devices if any WiFi device is currently transmitting in the unlicensed band. In one mode, only if eNB decides that the carrier is free, eNB may decide to transmit the trigger signal. Check that the carrier in the licensed band can be either the primary cell, in which the UE can perform the initial RRC connection establishment procedure (or initiate a reset procedure), or the carrier in the licensed band can be the secondary cell, which can provide additional features and can be configured after the RRC connection procedure is performed using the primary cell. The primary cell, for example, can be in the licensed band, while the secondary cell can be in the unlicensed band.
    [0028] If the eNB determines that the trigger signal transmission is desired, the eNB can determine whether the transmission should be a trigger signal (also referred to as an aperiodic flag) in step 304. The trigger signal can indicate to the EU that a reference signal must be transmitted in the unlicensed band. The signal
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    14/27 trigger can be sent in the primary cell on a Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), Media Access Control Element (MAC-CE) or a Radio Resource Control (RRC) message. EPDCCH, like PDCCH, can be UE specific and use PDSCH features to transmit control information. The EPDCCH can be configured using RRC signaling. Each UE can be configured with two sets of EPDCCHs, whose configurations may differ between sets. For example, one or more bits of the PDCCH or EPDCCH can be used as the trigger signal.
    [0029] If the eNB determines that the transmission must be a trigger signal in step 304, in step 306, the eNB can determine the way in which the trigger signal should be sent to the UE. In one embodiment, eNB can decide between sending the trigger signal to the UE through the licensed LTE band and through the unlicensed band (independent of the transmission of the reference signal, which will be sent through the unlicensed band) .
    [0030] In addition, the eNB can, in step 308, select a particular RNTI for the UE. As noted above, instead of using bits in the PDCCH, a new RNTI can be used. In one embodiment, a Random Access RNTI (typically used in Physical Random Access Channel Response (PRACH)) can be used to mix the PDCCH or EPDCCH. In that case, the PDCCH or EPDCCH can subsequently be transmitted in the common search space to allow the UE (which has to search for the common search space) to find the PDCCH or EPDCCH. This can also allow multiple UEs, capable of mixing the PDCCH or EPDCCH, to receive the trigger message.
    [0031] The eNB can also determine in step 310 the timing
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    15/27 tion between the transmission of the trigger signal and the transmission of the reference signal. This timing can indicate the difference in subframes between the transmission of the trigger signal and the transmission of the reference signal. The delay can take on any value, that is, the trip signal and the reference signal can be transmitted in the same or different frames. In some embodiments, the trigger signal can be transmitted before the reference signal. In other embodiments, the trigger signal can be transmitted in the same subframe as the reference signal. Allowing the reference signal to be triggered by a trigger signal in at least one subframe beforehand can help the UE prepare to receive the reference signal on the carrier in the unlicensed band. For example, the PDCCH decoding time typically takes up to about 1 ms. This means that at least a 1 ms margin is desirable to enable a UE to receive the trigger signal on the PDCCH, decode it and prepare to receive the reference signal on the unlicensed band carrier. In addition, the typical processing time for a PDSCH is 3 ms. If MAC-CE / RRC based triggering is applied, at least a 3 ms margin is desirable. Thus, it may be desirable for the eNB to define a delay of 4 subframes between the transmission of the trigger signal and the reference signal to allow both the processing time to obtain the date in the PDSCH, as well as providing the typical confirmation in a PUCCH , which typically takes a subframe. Check that the times described above are typical and the scope of the modalities is not limited in this respect.
    [0032] eNB can then determine in step 312 whether a single reference signal should be transmitted. This means that, in several modalities, eNB can determine whether a single reference signal should be transmitted or if multiple reference signals should be transmitted.
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    16/27 be transmitted. Depending on the mode, each of the reference signals can have a corresponding trigger signal or multiple reference signals can correspond to a single trigger signal. [0033] If the eNB determines that a single reference signal must be transmitted, the eNB transmits the trigger signal in step 314. In one embodiment, the eNB can transmit the trigger signal at the moment it determines that a single trigger signal must be transmitted. In another embodiment, eNB can delay the transmission of the trigger signal to at least one subframe. The timing between transmission of the trigger and reference signals, as well as the frequency band in which the trigger signal is transmitted can vary, as determined by the eNB. In one mode, the trigger signal can be aperiodic and not programmed.
    [0034] As verified above, the trigger signal transmission can be in the licensed or unlicensed band. In step 316, the eNB can subsequently determine whether data, in addition to a reference signal, should be transmitted to the UE. The number of trigger signals may vary depending on the eNB.
    [0035] If the eNB decides that the data should not be transmitted, the reference signal can be transmitted to the UE on a carrier of the unlicensed band in step 318. In one embodiment, the reference signal can be transmitted on the same band (for example, the unlicensed band) as the trigger signal. In another embodiment, the reference signal can be transmitted on the other band (for example, the licensed band) as the trigger signal. In one embodiment, the reference signal can be transmitted in the same subframe as the trip signal. In one embodiment, the reference signal can be transmitted in a subsequent subframe as the trigger signal.
    [0036] In one mode, eNB can determine that a signal
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    17/27 of data that contains data for the UE must be transmitted to the UE. In this mode, in step 320, the eNB can determine the timing of when the data signal is to be transmitted. The timing between the transmission of the reference signal and the data signal may vary depending, as determined by the eNB.
    [0037] In step 322, the eNB can determine whether a separate trigger signal or programming information should be transmitted to the UE. In one embodiment, the separate trigger signal can be used to inform the UE of data transmission. In another embodiment, the same trigger signal that can inform the UE about the transmission of the reference signal can also inform the UE about the data transmission.
    [0038] If the eNB determines that a separate trigger signal or programming information should be transmitted to the UE, in step 324, the eNB transmits the separate trigger signal to the UE to inform the UE about the data transmission. The timing between the transmission of the trigger signal, the transmission of the separate trigger signal, the transmission of the reference signal and the data signal (and between the reference signal and the data signal) can vary independently, as determined by eNB. In one embodiment, the trigger signals can be transmitted in the same subframe. In one embodiment, the trigger signals can be transmitted in different subframes. If the trigger signals are transmitted in different subframes, in one mode, the trigger signal that indicates the transmission of the reference signal can be transmitted before the trigger signal that indicates the transmission of the data signal. Alternatively, in one embodiment, the trigger signal that indicates the transmission of the data signal can be transmitted before the trigger signal that indicates the transmission of the reference signal. In one embodiment, one or both of the trigger signals can be aperiodic and
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    18/27 not programmed.
    [0039] Regardless of whether another trigger signal is sent to the UE, in step 326, the eNB can transmit the reference signal within the time determined by the eNB. In one embodiment, the transmission delay of the reference signal can be indicated on the trigger signal. The reference signal can be transmitted in an aperiodic time. That is, in one mode, the reference signal can be transmitted at a time that is different from the programmed periodic reference signal transmissions from eNB in the licensed band. In one embodiment, the reference signal can be transmitted in the same subframe and at the same time as the programmed periodic reference signal transmissions from eNB in the licensed band. The reference signal can include at least one of a cell-specific reference signal (CRS), a Channel Quality Indication (CQI), a channel status information reference signal (CSIRS) and a Reference Status Signal. Discovery (DRS). In one embodiment, an aperiodic reference signal transmitted in the unlicensed band may differ from a reference signal transmitted in the licensed band, even if transmitted by eNB in the same subframe.
    [0040] In step 328, the eNB can send the data signal to the UE at the specified time. In one embodiment, the data signal can be transmitted in the same subframe as the reference signal. In one embodiment, the data signal and the reference signal can be transmitted in different subframes. If the data signal and the reference signal are transmitted in different subframes, in one embodiment, the data signal can be transmitted before the reference signal. Alternatively, in one embodiment, the reference signal can be transmitted before the data signal. The transmission delay can be independent of the transmission delay of the trigger signals. That is, in a modality, although the si
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    19/27 trigger signal indicating that the transmission of the reference signal is transmitted before the trigger signal indicating the transmission of the data signal, wherein the data signal can be transmitted before the reference signal. In another embodiment, although the trigger signal that indicates the transmission of the data signal is transmitted before the trigger signal that indicates the transmission of the reference signal, the reference signal can be transmitted before the data signal. In one embodiment, the trigger signal that indicates the transmission of the reference signal can be transmitted before the trigger signal that indicates the transmission of the data signal and the reference signal can be transmitted before the data signal. In one embodiment, the trigger signal that indicates the transmission of the data signal can be transmitted before the trigger signal that indicates the transmission of the reference signal and the data signal can be transmitted before the reference signal. In this way, the order in which the trigger signals are sent can be different from an order in which the reference signal and the data signal are sent.
    [0041] Figures 4A and 4B illustrate resource blocks according to some modalities. As shown, in one embodiment, the reference signal can occupy the first two OFDM symbols in a subframe. In general, the first OFDM symbol in each sub-frequency in the resource block can be used by the UE for automatic gain control (AGC) of the received signal, while the second OFDM symbol assists in time / frequency synchronization before data decoding . This can allow the PDSCH initialization symbol to be set so that data is not lost during the operation of the UE AGC. The reference signal can be transmitted on the PDCCH in a particular resource block of a particular subframe by only one or two carrier subfrequencies (out of the 12 available), as shown in
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    20/27
    Figure 4A or can be driven by all sub-frequencies, as shown in Figure 4B. In one embodiment, if two carrier subfrequências are used to drive the reference signal, the carrier may be separated subfrequências the maximum number of carrier subfrequências, for example, 6 to 12 and the subfrequências carrier. As noted above, data trigger and reference signal trigger can be transmitted at any time between them. For example, although Figure 3 shows that the trigger signal for the reference signal is transmitted before the trigger signal / programming information for data transmission, in other embodiments, the data signal can be programmed for the UE before from the trigger signal to the reference signal to be transmitted by the eNB and can be separated by one or more subframes. In addition, the transmission of the reference signal and the data signal can occur in any order and, therefore, the relative timing of the transmission of the reference signal and the data signal can be independent of the timing in relation to the transmission of the trigger signals. for the reference signal and the data. In several embodiments, the reference signal and the data signal can be transmitted in the same subframe or can be transmitted in different subframes.
    [0042] If, in step 312, the eNB determines that more than one reference signal should be sent to the UE, in step 330, the eNB can determine if multiple trigger signals are associated with the reference signals. Thus, in one embodiment, a single trigger signal can serve to indicate to the UE the transmission of multiple reference signals. In another mode, the transmission of each reference signal can be indicated by a different trigger signal. In one embodiment, multiple trigger signals can be provided, each indicating one or more reference signals.
    Petition 870170038586, of 06/07/2017, p. 27/45
    21/27 [0043] If the eNB determines that more than one reference signal should be sent to the UE, the eNB in step 332 can select the timing for each reference signal. In one embodiment, the reference signals can be transmitted to the UE on the same unlicensed band. In one embodiment, one of the reference signals can be transmitted to the UE in the unlicensed band while another of the reference signals can be transmitted to the UE in the licensed band. In one embodiment, the reference signals can be transmitted in consecutive subframes. In one embodiment, the reference signals can be transmitted in non-continuous subframes.
    [0044] In step 334, the eNB transmits the trigger signals and the reference signals with the individual determined timings. In one embodiment, each trigger signal can correspond to a different reference signal transmission and, therefore, each trigger signal has an associated reference signal. In other embodiments, the eNB can transmit to the UE a mixture of two or more trigger signals in which a trigger signal corresponds to the transmission of a signal reference signal and a trigger signal corresponds to the transmission of multiple reference signals. The timing between the transmission of the trigger signals and the transmission of the reference signals may vary as determined by the eNB. In one embodiment, at least one of the trigger signals can be transmitted in the same subframe as at least one of the reference signals. For example, in one embodiment, at least one trigger signal and corresponding reference signal can be transmitted in the same subframe, while at least one other trigger signal and corresponding reference signal can be transmitted in different subframes. Alternatively, in one mode, the trigger signals and reference signals are transmitted in subframes without overlapping.
    Petition 870170038586, of 06/07/2017, p. 28/45
    22/27 [0045] If in step 330 the eNB determines that a single trigger signal is associated with multiple reference signals, in step 336, the eNB can transmit a single activation message to the UE to indicate transmission of a first signal multiple reference signals. The reference signals can then be transmitted in consecutive subframes or in non-consecutive subframes. For example, reference signals can be transmitted periodically (for example, every n subframes). In another embodiment, sets of reference signals can be transmitted periodically (for example, x reference signals over x consecutive subframes for each n subframes). In one mode, no activation message is transmitted, with the trigger signal indicating the number and timing of reference signals.
    [0046] In step 338, eNB determines whether the final reference signal has been transmitted. The number of reference signals transmitted can be predetermined for each transmission or set for a particular set of reference signals and indicated by the trigger signal. [0047] In step 340, the eNB transmits a deactivation message to the UE to indicate that the final reference signal has been transmitted. In one mode, no deactivation message is transmitted, as verified above with the trigger signal that indicates the number and timing of reference signals.
    [0048] In addition, the eNB may determine in step 322 that a separate trigger signal may not be sent to indicate transmission of the data signal. This means that the trigger signal transmitted in step 314 can serve to indicate transmission of both the reference signal and the data signal. As noted above, the transmission of the reference signal and data can occur in any order and, therefore, the relative timing of the transmission of the reference signal and the data signal can be independent of time.
    Petition 870170038586, of 06/07/2017, p. 29/45
    23/27 relative proportion of the transmission of the trigger signals to the reference signal and the data signal. In various embodiments, the reference signal and data can be transmitted in the same subframe or can be transmitted in different subframes.
    [0049] If, in step 304, the eNB can determine that a trigger signal should not be transmitted, the data signal can instead be programmed in the unlicensed band in step 344. In one embodiment, the data can be programmed to be aperiodic with other signals programmed in the licensed band.
    [0050] In step 348, the eNB can determine whether data signals for multiple UEs should be programmed. If the eNB determines that the data signals for multiple UEs should not be programmed, the eNB can determine that only one data signal (or multiple data signals) for only one UE should be programmed.
    [0051] In step 356, the eNB can transmit the data signal programming to the UE in the unlicensed band. In that case, the eNB can transmit the data signal to the UE in the unlicensed band separately. Alternatively, the eNB can transmit the data signal to the UE without sending a separate schedule.
    [0052] In step 348, the eNB can determine which data signals for multiple UEs should be programmed. However, certain problems can occur if the eNB transmits to multiple UEs in the unlicensed band. Due to the opportunistic nature of transmission in the unlicensed band and control of the transmission medium in the licensed band, the use of the licensed band is preferred to transmit control channel transmissions, such as programming information, while data transmission is provided over the band not licensed. This means that the licensed band can complete programming data transmissions for multiple bands. To reduce the problem of increased control channel overhead in the
    Petition 870170038586, of 06/07/2017, p. 30/45
    24/27 licensed band, as well as PDCCH blocking (ie UEs that do not seek the correct carrier for control information), group programming of multiple UEs or multiple resource blocks can be performed using a single PDCCH or EPDCCH feature. To provide this in step 350, eNB determines whether a new RNTI should be used.
    [0053] If the eNB determines that a new RNTI should be used, the eNB can, in step 352, define a new group RNTI (G-RNTI) to meet the desired group of UEs. In one embodiment, eNB then mixes the CRC of the DCI message with the use of G-RNTI to serve the intended group of UEs. The CRC can be used in a modality by the corresponding UEs configured with the GRNTI for data programming.
    [0054] If the eNB determines that a new group RNTI should not be defined in step 354 the eNB can define a bit field as a part of the DCI programming transmission. In one embodiment, each bit in the bit field can represent a resource block on the unlicensed and / or UE carrier. In one embodiment, one or more additional bits can be added to the DCI format that is used, or one or more existing bits can be replaced in the existing field. Depending on the format, a 0 or 1 can be used to indicate whether the corresponding resource block or UE is programmed using DCI information.
    [0055] Whether a G-RNTI is defined or not, in step 356, the eNB can transmit the data signal programming to the UEs in the unlicensed band. The eNB can transmit the data signals to the desired UE in the unlicensed band using programming. In one mode, programming may indicate that the data signals must be transmitted in consecutive or non-consecutive subframes. For example, programming may indicate that
    Petition 870170038586, of 06/07/2017, p. 31/45
    25/27 the data signals must be transmitted periodically (for example, every n subframes). In another mode, programming can indicate which sets of data signals are to be transmitted periodically (for example, x reference signals over x consecutive subframes for each n subframes).
    [0056] Although a modality has been described with reference to specific exemplary modalities, it will be evident that several modifications and alterations can be made to these modalities without departing from the broad spirit and scope of the present revelation. Accordingly, the specification and the drawings must be related in an illustrative rather than a restrictive sense. The attached drawings that form a part of it show, by way of illustration, and not limitation, specific modalities in which the matter can be practiced. The illustrated modalities are described in sufficient detail to enable those skilled in the art to practice the teachings revealed in this document. Other modalities can be used and derived from them, so that structural and logical substitutions and changes can be made without departing from the scope of this disclosure. This Detailed Description, therefore, should not be taken in a limiting sense, and the scope of several modalities is defined only by the appended claims, over the full range of equivalents to which such claims are entitled.
    [0057] Such modalities of the inventive material can be referred to in this document, individually and / or collectively, by the term invention merely for convenience and without being intended to voluntarily limit the scope of this application to any single invention or inventive concept, if more than one is, in fact, revealed. Thus, although specific modalities have been illustrated and described in this document, it must be verified that any
    Petition 870170038586, of 06/07/2017, p. 32/45
    26/27 provision calculated to achieve the same purpose can be substituted for the specific modalities shown. This disclosure is intended to cover any and all adaptations or variations of different modalities. The combinations of the above modalities and the other modalities not specifically described in this document, will be evident to those skilled in the art upon review of the above description.
    [0058] In this document, the terms one or one are used, as is common in patent documents, to include one or more than one, regardless of any other occurrences or uses of at least one or one or more. In this document, the term is either used to refer to an exclusive or non-exclusive or, such that A or B includes A, but not B, B, but not A and A and B unless otherwise specified. In this document, the terms you include and in which (a) are used as simple English equivalents of the respective terms you understand and in which. Furthermore, in the following claims, the terms it includes and which comprises are open, that is, a system, UE, article, composition, formulation or process that includes elements in addition to those listed after such terms in a claim are still considered to be within the scope of such claim. Furthermore, in the following claims, the terms first (a), second (a) and third (a) etc. they are used merely as labels and are not intended to impose numerical requirements on your objects.
    [0059] The Disclosure Summary is provided to comply with 37 C.F.R. Section 1.72 (b), which requires a summary that will allow the reader to quickly verify the nature of the technical disclosure. It is assumed that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the aforementioned Detailed Description, it can be observed that several resources are grouped in a single modality for the purpose of simplification 870170038586, from 06/07/2017, p. 33/45
    27/27 cation of the revelation. This method of description should not be interpreted as reflecting an intention that the claimed modalities require more resources than those that are expressly cited in each claim. Instead, as the following claims reflect, the inventive matter is in no less than all the resources of a single revealed modality. In this way, the following claims are hereby incorporated into the Detailed Description, in which each of the claims may very well use itself as a separate modality.
    权利要求:
    Claims (27)
    [1]
    1/12
    1. Improved B node (eNB) (104) characterized by the fact that it comprises:
    a transceiver configured to transmit signals to and receive signals from user equipment (UE) (102) on a carrier in a licensed band and a carrier on an unlicensed band; and set of processing circuits (206) configured for:
    cause the transceiver to transmit to the UE (102) a trigger signal in one of the unlicensed or licensed band, the trigger signal configured to inform the UE (102) about the transmission of an aperture reference signal from the eNB (104 ) for UE (102) in the unlicensed band using one of a Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), Media Access Control Element (MAC- CE) or a Radio Resource Control (RRC) message in one of the unlicensed or licensed band, where the PDCCH or EPDCCH one indicating the trigger signal is mixed using a Temporary Radio Network Identifier (RNTI) that is different from an RNTI of a PDCCH or EPDCCH that does not indicate the trigger signal;
    having the transceiver transmit to the UE (102) the aperiodic reference signal in the unlicensed band, in addition to transmitting periodic reference signals in one of the unlicensed or licensed band, the aperiodic reference signal including one among a reference signal cell specific (CRS), a Channel Quality Indication (CQI), a channel status information reference signal (CSI-RS), or a Discovery Reference Signal (DRS); and make the transceiver receive measurements from the UE (102) at least
    [2]
    2/12 minus one of a channel quality and channel estimate based on the aperiodic reference signal, where when the trigger signal corresponds to multiple aperiodic reference signals, the circuitry is configured to make the transceiver use a message activation signal to trigger the start of transmission of aperiodic reference signals and use a deactivation message to trigger end of transmission of aperiodic reference signals, and multiple aperiodic reference signals are transmitted periodically over a plurality of consecutive subframes.
    2. Improved B node (eNB) (104), according to claim 1, characterized by the fact that:
    the processing circuitry (206) is configured to make the transceiver transmit the N trigger signal subframes before transmitting the aperiodic reference signal, where N is a non-negative integer.
    [3]
    3. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is configured for:
    causing the transceiver to transmit to the UE (102) a second trigger signal in one of the unlicensed or licensed band, the second trigger signal configured to inform the UE (102) about an eNB data transmission (104) for UE (102) in the unlicensed band, data transmission capable of being transmitted in a different subframe than the aperiodic reference signal; and causing the transceiver to transmit data transmission from the eNB (104) to the UE (102) in the unlicensed band to the UE (102).
    [4]
    4. Improved Node B (eNB) (104), according to claim 3, characterized by the fact that the set of processing circuits (206) is configured to make the transceiver transmitted
    3/12 take at least one of:
    the second trigger signal before the trigger signal, the aperiodic reference signal before data transmission, or the aperiodic reference signal and data transmission in the same subframe.
    [5]
    5. Improved B node (eNB) (104), according to claim 1, characterized by the fact that:
    the trigger signal is further configured to inform the UE (102) about a data transmission from the eNB (104) to the UE (102) in the unlicensed band, the data transmission capable of being transmitted in a different subframe than the aperiodic reference signal.
    [6]
    6. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to:
    having the transceiver transmit, to a plurality of UEs (102) including the UE (102), programming information in one of the unlicensed or licensed band, the programming information configured to inform the UEs (102) about at least one transmission data from eNB (104) to UEs (102) in the unlicensed band, where the programming information includes programming for a plurality of physical resource blocks using a single PDCCH or EPDCCH resource.
    [7]
    7. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to:
    having the transceiver transmit, to a plurality of UEs (102) including the UE (102), programming information in one of the unlicensed or licensed band, the program information
    4/12 information configured to inform UEs (102) about at least one data transmission from eNB (104) to UEs (102) in the unlicensed band, where the programming information includes Downlink Control Information (DCI) ) having an M-bit field, where each bit of the M-bit field represents a physical resource block on the unlicensed carrier.
    [8]
    8. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to:
    having the transceiver transmit, to a plurality of UEs (102) including the UE (102), programming information in one of the unlicensed and licensed band, the programming information configured to inform the UEs (102) about at least one transmission of data from eNB (104) to UEs (102) in the unlicensed band, where the programming information includes Downlink Control Information (DCI) having an M-bit field, where each bit of the M field -bit represents an individual UE (102).
    [9]
    9. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to:
    having the transceiver transmit, to a plurality of UEs (102) including the UE (102), programming information in one of the unlicensed or licensed band, the programming information configured to inform the UEs (102) about at least one transmission of data from eNB (104) to UEs (102) in the unlicensed band, where programming information uses EPDCCH having Downlink Control Information (DCI) mixed using the RNTI configured to identify the plurality of UEs (102) ).
    185'2413
    5/12
    [10]
    10. Enhanced Node B (eNB) (104), according to claim 1, characterized by the fact that the trigger signal is configured to indicate for the UE transmission (102) of the aperiodic reference signal on the carrier in the non-band licensed to allow UE (102) to perform aperiodic reference signal measurements, even when UE (102) is unable to perform non-aperiodic reference signal measurements provided from eNB (104) on the carrier in the unlicensed band due to the use of the carrier in the band not licensed by the UE (102) or WiFi devices close to the UE (102) when the non-aperiodic reference signals are provided by eNB (104), to allow coexistence between the UE (102) and the WiFi devices.
    [11]
    11. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that it still comprises:
    an antenna (201) configured to transmit the trigger signal from the transceiver to the UE (102).
    [12]
    12. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that:
    transmission time of the aperiodic reference signal in relation to the trip signal is indicated in the trip signal.
    [13]
    13. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to make the transceiver:
    transmitting to the UE a mixture of trigger signals of which a first trigger signal corresponds to the transmission of a single reference signal and a second trigger signal corresponds to the transmission of multiple reference signals in different subframes to the UE (102).
    [14]
    14. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of control circuits
    6/12 processing (206) is further configured to:
    select, as the RNTI to mix the PDCCH or EPDCCH that indicates the trigger signal, a random access RNTI.
    [15]
    15. Improved Node B (eNB) (104), according to claim 1, characterized by the fact that the set of processing circuits (206) is further configured to:
    select the RNTI to mix the PDCCH or EPDCCH which indicates the trigger signal free from the use of bits in the PDCCH or EPDCCH to indicate the trigger signal.
    [16]
    16. User equipment (EU) (102) characterized by the fact that it comprises:
    a transceiver configured to transmit signals to and receive signals from an improved Node B (eNB) (104) on a carrier in a licensed band and a carrier in an unlicensed band; and set of processing circuits (206) configured for:
    cause the transceiver to receive, from the eNB (104), a trigger signal in one of the unlicensed or licensed band, the trigger signal configured to inform the UE (102) about the transmission of an aperiodic reference signal from the eNB (104) for UE (102) in the unlicensed band using one of a Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), Media Access Control Element (MAC-CE ), or a Radio Resource Control (RRC) message in one of the unlicensed or licensed band, where the PDCCH or EPDCCH one indicating the mixed trigger signal using a Temporary Radio Network Identifier (RNTI) that is different from an RNTI of a PDCCH or EPDCCH that does not indicate the trigger signal, the aperiodic reference signal in
    Petition 870180047283, of 06/06/2018, p. 10/43
    7/12 including one of a cell specific reference signal (CRS), a Channel Quality Indication (CQI), a channel status information reference signal (CSI-RS), or a Discovery Reference Signal (DRS);
    making the transceiver receive, from eNB (104), the aperiodic reference signal in the unlicensed band in addition to receiving periodic reference signals in one of the unlicensed and licensed band;
    perform measurements of at least one of a channel quality and channel estimate based on the aperiodic reference signal; and having the transceiver transmit, to the eNB (104), measurements based on the aperiodic reference signal, where when the trigger signal corresponds to multiple aperiodic reference signals, the processing circuitry (206) is configured to cause the transceiver to receive an activation message configured to indicate the start of transmission of the aperiodic reference signals and a disable message configured to indicate the end of transmission of the aperiodic reference signals, and the multiple aperiodic reference signals are transmitted periodically over a plurality of consecutive subframes.
    [17]
    17. User equipment (EU) (102), according to claim 16, characterized by the fact that:
    the processing circuitry (206) is configured to make the transceiver receive the N trigger signal subframes before receiving the aperiodic reference signal, where N is a non-negative integer.
    [18]
    18. User equipment (UE) (102), according to claim 16, characterized by the fact that the circuit set
    Petition 870180047283, of 06/06/2018, p. 18/43
    8/12 processing costs (206) is configured to:
    causing the transceiver to receive, from the eNB (104), a second trigger signal in one of the unlicensed and licensed band, the second trigger signal configured to inform the UE (102) about a data transmission from the eNB (104) for the UE (102) in the unlicensed band; and making the transceiver receive, from eNB (104), the data transmission from eNB (104) to UE (102) in the unlicensed band, the data transmission capable of being transmitted in a different subframe than the reference signal aperiodic.
    [19]
    19. User equipment (UE) (102), according to claim 18, characterized by the fact that the set of processing circuits (206) is configured to make the transceiver receive at least one of:
    the second trigger signal before the trigger signal, the aperiodic reference signal before data transmission, or the aperiodic reference signal and data transmission in the same subframe.
    [20]
    20. User equipment (EU) (102), according to claim 18, characterized by the fact that:
    the trigger signal is further configured to inform the UE (102) about a data transmission from the eNB (104) to the UE (102) in the unlicensed band, the data transmission capable of being transmitted in a different subframe than the aperiodic reference signal.
    [21]
    21. Communication method using a licensed and unlicensed band, the method characterized by the fact that it comprises:
    transmit a trigger signal from an improved Node B (eNB) (104) to at least one user equipment (UE) (102) on a
    Petition 870180047273, of 06/06/2018, p. 12 43
    9/12 carrier in one of the licensed or unlicensed band, the trigger signal configured to inform at least one UE (102) about transmission of at least one of an aperiodic reference signal or eNB data transmission (104 ) for at least one UE (102) in the unlicensed band using one of a Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), Media Access Control Control Element (MAC-CE), or a Radio Resource Control (RRC) message in one of the unlicensed or licensed band, in which the PDCCH or EPDCCH one indicating the trigger signal is mixed using a Temporary Network Identifier. Radio (RNTI) that is different from an RNTI of a PDCCH or EPDCCH that does not indicate the trigger signal, the aperiodic reference signal including one among a cell specific reference signal (CRS), a Channel Quality Indication (C IQ), a channel status information reference signal (CSI-RS) and a Discovery Reference Signal (DRS);
    transmit to at least one UE (102), at least one of the aperiodic reference signal or data transmission from eNB (104) to at least one UE (102) in the unlicensed band at the time indicated on the signal firing; and in response to the transmission to the at least one UE (102) of the aperiodic reference signal, receiving measurements of at least one of a channel quality and channel estimate based on the aperiodic reference signal, where when the signal trip corresponds to the multiple aperiodic reference signals, the method also comprises transmitting an activation message configured to indicate the start of transmission of the aperiodic reference signals and a deactivation message configured to indicate the end of transmission of the signals.
    Petition 87018004728J, of 06/06/2018, p. 20 21
    10/12 aperiodic reference signals, and multiple aperiodic reference signals are transmitted over a plurality of consecutive subframes.
    [22]
    22. Method according to claim 21, characterized by the fact that the trigger signal is configured to inform the at least one UE (102) about transmission of both the aperiodic reference signal and data transmission, the data transmission capable of being transmitted in a different subframe than the aperiodic reference signal.
    [23]
    23. Method, according to claim 21, characterized by the fact that:
    the trigger signal is configured to inform at least one UE (102) about transmission of the aperture reference signal from eNB (104) to at least one UE (102) in the unlicensed band, and the method further comprises:
    transmit a second trigger signal from the eNB (104) to the at least one UE (102) on the carrier in the licensed band, the second trigger signal configured to inform the at least one UE (102) about transmission of the data transmission from the eNB (104) for at least one UE (102) in the unlicensed band, the data transmission capable of being transmitted in a different subframe than the aperiodic reference signal; and transmitting data transmission from eNB (104) to at least one UE (102) in the unlicensed band to the at least one UE (102) in the time indicated in the second trigger signal.
    [24]
    24. Method according to claim 23, characterized in that the relative transmission time of the aperiodic reference signal and data transmission is independent of the relative time of the trigger signal and the second trigger signal.
    Petition 870180048283, of 06/06/2018, p. 24 43
    12/11
    [25]
    25. Method, according to claim 21, characterized by the fact that it still comprises:
    identify, using RNTI, a plurality of UEs (102) to which to transmit, through the unlicensed band, data transmissions using the EPDCCH;
    mix programming information for data transmissions using RNTI; and transmit the programming information to the UEs (102) using the licensed band.
    [26]
    26. Non-transitory computer-readable storage medium characterized by the fact that it stores instructions for execution by one or more processors of an improved B-node (eNB) (104), the one or more processors to configure an eNB transceiver (104) to communicate with a License Assisted Access (LAA) user equipment (UE) (102) operating in an unlicensed band, eNB (104) to:
    transmit a trigger signal to the UE (102) on a carrier in the licensed band, the trigger signal configured to inform the UE (102) about transmission of at least one of an aperiodic reference signal or eNB data transmission ( 104) for at least one UE (102) in the unlicensed band using one of a Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), Access Control Control Element of Media (MACCE), or a Radio Resource Control (RRC) message, in which the PDCCH or EPDCCH one indicating the trigger signal is mixed using a Temporary Radio Network Identifier (RNTI) that is different from an RNTI of a PDCCH or EPDCCH that does not indicate the trigger signal, transmit to the UE (102) the at least one of the signal
    Petition 870180048283, of 06/06/2018, p. 22/43
    12/12 aperiodic reference or eNB data transmission (104) in the unlicensed band in the time indicated in the trigger signal, the aperiodic reference signal including one among a cell specific reference signal (CRS), a Quality Indication Channel (CQI), a channel status information reference signal (CSI-RS) and a Discovery Reference Signal (DRS); and in response to the transmission, to the UE (102), of the aperiodic reference signal, to receive measurements of at least one among a channel quality and channel estimate based on the aperiodic reference signal, where when the trigger signal corresponds to multiple aperiodic reference signals, the one or more processors still configure the transceiver to transmit an activation message configured to indicate the start of transmission of aperiodic reference signals and a disable message configured to indicate end of transmission of aperiodic reference signals. , and the multiple aperiodic reference signals are transmitted over a plurality of consecutive subframes.
    [27]
    27. Non-transitory computer-readable storage medium according to claim 26, characterized by the fact that the trigger signal is configured to inform the UE (102) about transmission of both the aperiodic reference signal and data transmission, the data transmission capable of being transmitted in a different subframe than the aperiodic reference signal.
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    同族专利:
    公开号 | 公开日
    EP3158663A1|2017-04-26|
    EP3158663A4|2018-02-14|
    US20150373674A1|2015-12-24|
    CN106464351A|2017-02-22|
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    WO2015199932A1|2015-12-30|
    US10064064B2|2018-08-28|
    KR20160147907A|2016-12-23|
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    法律状态:
    2019-02-19| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2019-07-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-08-18| B25C| Requirement related to requested transfer of rights|Owner name: INTEL CORPORATION (US) |
    2020-11-10| B25A| Requested transfer of rights approved|Owner name: INTEL CORPORATION (US) |
    2020-12-01| B25A| Requested transfer of rights approved|Owner name: APPLE INC. (US) |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462016001P| true| 2014-06-23|2014-06-23|
    US62/016,001|2014-06-23|
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    PCT/US2015/034141|WO2015199932A1|2014-06-23|2015-06-04|Lte-u communication devices and methods for aperiodic beacon and reference signal transmission|
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