WO2023011517A1 - 由用户设备执行的方法及用户设备 - Google Patents

由用户设备执行的方法及用户设备 Download PDF

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Publication number
WO2023011517A1
WO2023011517A1 PCT/CN2022/109928 CN2022109928W WO2023011517A1 WO 2023011517 A1 WO2023011517 A1 WO 2023011517A1 CN 2022109928 W CN2022109928 W CN 2022109928W WO 2023011517 A1 WO2023011517 A1 WO 2023011517A1
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trp
field
cell
beam failure
mac
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PCT/CN2022/109928
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English (en)
French (fr)
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张崇铭
刘仁茂
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夏普株式会社
张崇铭
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Publication of WO2023011517A1 publication Critical patent/WO2023011517A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present invention relates to the technical field of wireless communication, and more specifically, the present invention relates to a method for performing beam failure reporting by user equipment and corresponding user equipment.
  • the base station can configure a reference signal for beam failure detection and/or beam failure recovery for each serving cell of the UE.
  • the current serving beam When it is found that the current serving beam has a beam failure through detection, it can send a signal containing the beam failure to the base station. Failed cell information, and reference signals used for beam failure detection and/or beam failure recovery can be detected to obtain candidate beams, and related information is notified to the network through the beam failure recovery process.
  • Such a cell may be called a cell configured with a cell specific BFR (Cell specific BFR).
  • reference signals for beam failure detection and/or beam failure recovery can be configured for each TRP of the serving cell.
  • the reference signal used for beam failure detection and/or beam failure recovery may be detected to obtain candidate beams, and relevant information may be notified to the network through the beam failure recovery process.
  • the beam failure recovery process can be performed based on each TRP.
  • Such a cell may be called a cell configured with a TRP specific BFR (TRP specific BFR).
  • the present invention discusses how to report beam failure in a cell configured with Cell specific BFR and TRP specific BFR.
  • the present invention proposes a solution to the following problem, that is, it proposes a solution to the problem of how to report beam failure in a cell configured with Cell specific BFR and TRP specific BFR.
  • the purpose of the present invention is to provide a method performed by user equipment capable of reporting beam failure in a cell configured with Cell specific BFR and TRP specific BFR and corresponding user equipment.
  • a method performed by user equipment is provided, which is a method for user equipment UE to perform beam failure reporting, including the following steps:
  • the UE generates a MAC CE for simultaneously reporting cell-specific beam failure information and TRP-specific beam failure information;
  • the UE sends the generated MAC CE to the base station,
  • the above MAC CE exists domain Ci, TRP, AC, Candidate RS ID, R,
  • Ci This field indicates the beam failure detection of the serving cell configured with cell-specific BFR, or indicates the beam failure detection of the serving cell configured with TRP-specific BFR, where i corresponds to the serial number of the serving cell ;
  • TRP This field indicates the detection of beam failures on this TRP
  • Candidate RS ID This field is set to the serial number of the reference signal whose measured value is higher than the configured threshold
  • R This field is a reserved bit.
  • the Ci field is set to 0, if the corresponding serving cell is configured with cell-specific BFR, it means that the serving cell has not detected beam failure; if the corresponding serving cell is configured with TRP-specific BFR, then it means that in No beam failure is detected on all configured TRPs of the serving cell;
  • the Ci field When the Ci field is set to 1, if the corresponding serving cell is configured with cell-specific BFR, it means that the serving cell detects beam failure; if the corresponding serving cell is configured with TRP-specific BFR, then it means that the serving cell A beam failure is detected on at least one TRP on the cell.
  • TRP field When the TRP field is set to 0, it means that no beam failure is detected on this TRP;
  • the TRP field When the TRP field is set to 1, it indicates that a beam failure has been detected on this TRP.
  • TRP field When the TRP field is set to 0, it means that the AC field in the same byte is regarded as non-existent, or regarded as a reserved bit.
  • the byte where the Candidate RS ID field is located is regarded as a reserved bit.
  • the UE generates two different MAC CEs, the cell-specific BFR MAC CE and the TRP-specific BFR MAC CE;
  • the UE performs MAC PDU grouping
  • the UE After completing the MAC PDU package, the UE sends the MAC PDU to the base station.
  • the UE performs the operation that the grouping priority of the cell-specific BFR MAC CE is always higher than that of the TRP-specific BFR MAC CE.
  • the priority of the UE to perform the grouping of the TRP-specific BFR MAC CE is higher than that of Operation of packet priority of cell-specific BFR MAC CE.
  • a user equipment including:
  • the above-mentioned instructions when executed by the above-mentioned processor, cause the above-mentioned user equipment to perform the method according to the above-mentioned description.
  • beam failure can be reported in a cell configured with Cell specific BFR and TRP specific BFR.
  • Fig. 1 is a flowchart showing a method executed by a user equipment according to an embodiment of the present invention.
  • Fig. 2 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • UE User Equipment user equipment
  • RRC Radio Resource Control radio resource control
  • MAC Medium Access Control, medium access control
  • RRC_IDLE RRC idle state
  • RAN Radio Access Network, wireless access network
  • RSRP Reference Signal Receiving Power, reference signal receiving power
  • PDCCH Physical downlink control channel, physical downlink control channel
  • BWP Bandwidth Part, bandwidth segment
  • DCI Downlink Control Information, downlink control information
  • MAC CE MAC control element
  • MAC PDU MAC Protocol Data Unit, MAC Protocol Data Unit
  • MIB Master Information Block, master information block
  • SIB System Information Block, system information block
  • RLM Radio Link Monitoring, wireless link monitoring
  • BFD Beam Failure Detection, beam failure detection
  • RLF Radio Link Failure, wireless link failure
  • RRM Radio Resource Management, wireless resource management
  • the serving cell can be PCell, PSCell or SCell
  • SpCell Special Cell, a special cell, which can be PCell or PSCell.
  • PCell Primary Cell, main cell
  • PSCell Primary SCG Cell, main SCG cell
  • SCell Secondary Cell, auxiliary cell
  • SCG Secondary Cell Group, secondary cell group
  • C-RNTI Cell RNTI, cell RNTI
  • Radio Network Temporary Identifier Radio Network Temporary Identifier, wireless network temporary identifier
  • HARQ Hybrid Automatic Repeat Request, hybrid automatic request retransmission
  • SINR Signal to Noise and Interference Ratio, signal to noise and interference ratio
  • DRB (user) Data Radio Bearer, data radio bearer
  • MIMO Multiple-Input Multiple-Output multiple input multiple output
  • TRP Transmit/Receive Point sending/receiving port
  • TCI Transmission Configuration Indicator transmission configuration indication
  • PDSCH Physical Downlink Shared Channel Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel Physical Downlink Control Channel
  • PUSCH Physical Uplink Shared Channel Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel Physical Uplink Control Channel
  • PCI Physical Cell Identifier physical cell identification
  • UL-SCH Uplink Shared Channel uplink shared channel
  • the network, base station and RAN can be used interchangeably, and the network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or a subsequent evolution version of 3GPP Other networks defined in .
  • New RAT new radio access technology
  • eLTE enhanced long-term evolution eLTE network
  • the user equipment UE may refer to the NR device supporting multi-beam enhancement described in the background technology, or may refer to the NR device supporting multi-TRP enhancement, may also refer to the NR device supporting FeMIMO, or may refer to the NR device supporting SRS enhancement
  • the NR device may also refer to an NR device supporting enhanced CSI measurement and reporting, or may refer to other types of NR devices or LTE devices.
  • BFD Beam failure detection
  • BFR beam failure recovery
  • BFD is that UE detects beam failure and restores beam failure according to the reference signal configured by the network.
  • the BFD process can target each Serving Cell, including SpCell and SCell.
  • the BFR process also includes reporting or detecting beam failure events to the network side when beam failure occurs.
  • the configured reference signal for the BFD (or BFR) procedure may be SSB and/or CSI-RS.
  • the reference signal here is used for beam detection, so it can be called a reference beam (reference beam).
  • each TRP may be configured with a set of reference signals.
  • the physical layer reports to the MAC layer to indicate beam failure instance indication.
  • the UE can determine that beam transmission on the TRP has failed, and then trigger the BFR process.
  • the UE may also detect the reference signal set used for BFD and/or BFR corresponding to the TRP, so as to find a candidate reference signal when beam failure occurs.
  • the UE can report the information of the TRP where the beam failure occurs and possible candidate reference information to the base station. These information can be carried in the MAC CE and sent to the base station.
  • a MAC CE may be called a TRP specific BFR MAC CE.
  • the serving cell of the UE may also be configured with a cell-level reference signal set for BFD and/or BFR.
  • a cell may be called a cell configured with Cell specific BFR.
  • the physical layer reports to the MAC layer to indicate beam failure instance indication.
  • the UE can determine that the beam transmission on the cell has failed, and then trigger the BFR process.
  • the UE can also detect the reference signal set corresponding to the cell and used for BFD and/or BFR, so as to find a candidate reference signal when beam failure occurs.
  • the UE can report the information of the cell where the beam failure occurs and possible candidate reference information to the base station. These information can be carried in the MAC CE and sent to the base station.
  • a MAC CE can be called a Cell specific BFR MAC CE.
  • cells configured with cell specific BFR are usually configured with only one set of reference signals (or a set of reference signals); cells configured with TRP specific BFR At least two sets of reference signals for BFR (or multiple sets of reference signals for BFR) are configured. Therefore, cell specific BFR and TRP specific BFR can be defined according to the number of configured reference signal sets for BFR. For example, a cell configured with only one set of reference signals for BFR corresponds to a cell configured with cell specific BFR; a cell configured with at least two sets of reference signals for BFR corresponds to a cell configured with TRP specific BFR. Such terms are interchangeable.
  • cancellation, release, deletion, emptying and clearing can be replaced with each other.
  • Perform, use, adopt and apply are interchangeable.
  • Configuration and reconfiguration are interchangeable.
  • Index, indication, identification, information, serial number and number are interchangeable.
  • “Collection” and “set” are interchangeable.
  • TRP Transmission Control Protocol
  • TRP Index Reference Signal Set
  • Reference Signal Set Index Reference Signal Set
  • BFD Reference Signal Set BFR Reference Signal Set
  • BFD Reference Signal Set Index BFR Reference Signal Set Index
  • TCI Status TRP BFR MAC CE
  • TRP BFR MAC CE can also have other names, as long as it is the MAC CE used to indicate beam failure recovery of a certain TRP.
  • This embodiment provides a method performed by the user equipment, which is a method for the UE to perform a beam failure report, as shown in FIG. 1 , including the following steps:
  • S101 UE generates a MAC CE for simultaneously reporting Cell specific beam failure information and TRP specific beam failure information;
  • S102 The UE sends the generated MAC CE to the base station.
  • a MAC CE format is designed for simultaneously reporting Cell specific beam failure information and TRP specific beam failure information.
  • the field Ci indicates the beam failure detection status of the serving cell configured with cell specific BFR, or indicates the beam failure detection status of the serving cell configured with TRP specific BFR.
  • i corresponds to the serial number of the serving cell
  • C1 corresponds to the beam failure detection situation of the serving cell numbered 1.
  • Ci When Ci is set to 0, if the corresponding serving cell is configured with cell specific BFR, it means that the serving cell has not detected beam failure; if the corresponding serving cell is configured with TRP specific BFR, then it means that in the serving cell No beam failure is detected on all the configured TRPs. For example, if the cell is configured with two TRPs, it indicates that no beam failure is detected on the two TRPs.
  • Ci when Ci is configured as 0, it may also indicate that although the corresponding serving cell has detected beam failure, the evaluation of the candidate reference signal has not been completed.
  • a serving cell mainly refers to a serving cell configured with cell specific BFR.
  • any of the following information can be indicated:
  • Beam failure is detected on at least one configured TRP of the serving cell, but the evaluation of candidate reference signals has not been completed; no beam failure is detected on other TRPs;
  • Ci When Ci is set to 1, if the corresponding serving cell is configured with cell specific BFR, it means that the serving cell has detected beam failure; if the corresponding serving cell is configured with TRP specific BFR, it means that the serving cell has at least A beam failure is detected on a TRP, for example, the serving cell is configured with two TRPs, then Ci will be set to 1 in the following cases:
  • a beam failure is detected on one of the TRPs, but no beam failure is detected on the other TRP;
  • Ci when Ci is set to 1, it can also indicate that the corresponding serving cell has detected beam failure, and the evaluation of the candidate reference signal (or candidate beam) has been completed, and the AC field will appear.
  • a serving cell mainly refers to a serving cell configured with cell specific BFR.
  • TRP specific BFR when the corresponding Ci is set to 1, it may also indicate that the TRP field will appear, and may indicate that beam failure is detected on at least one configured TRP of the serving cell, and The evaluation of candidate reference signals on this TRP has been completed.
  • Ci field set to 1 there is one or more corresponding bytes (octet), which can contain the following AC field, TRP field, and/or Candidate RS ID field.
  • a serving cell configured with TRP specific BFR, if its corresponding Ci field is set to 1, then there are corresponding bytes containing at least the TRP field, and the number of bytes does not exceed (less than or equal to) the configured The number of TRPs.
  • the TRP field indicates the detection of beam failure on this TRP.
  • a serving cell configured with TRP specific BFR
  • the number of bytes of the included TRP field is determined.
  • two TRPs are configured for the UE in the serving cell, and when beam failure is detected in a certain TRP in the serving cell, there are two bytes containing the TRP field corresponding to the serving cell in the MAC CE.
  • the first byte corresponds to the first TRP
  • the second byte corresponds to the second TRP.
  • the UE can learn the correspondence between bytes and TRPs according to agreement or pre-configuration.
  • the first byte may correspond to the TRP with index 0, and the second byte may correspond to the TRP with index 1, or vice versa. If there are more than two TRPs, they can be deduced by numbering. It is also possible to configure one of them as primary TRP and the other as secondary TRP when configuring the relevant parameters of TRP specific BFR. Then the first byte can correspond to primary TRP, and the second byte can correspond to secondary TRP.
  • the TRP field contained in this byte indicates the detection of beam failure on the corresponding TRP.
  • TRP when TRP is set to 0, it means that beam failure is not detected on this TRP; otherwise, when TRP is set to 1, it means that beam failure is detected on this TRP.
  • the TRP when the TRP is set to 0, it may also indicate that although a beam failure is detected on the TRP, the evaluation of the candidate reference signal has not been completed.
  • the TRP when the TRP is set to 1, it can also indicate that a beam failure has been detected on the TRP, and the evaluation of the candidate reference signal (or candidate beam) has been completed, and the AC field will appear.
  • the TRP field in the same byte can be regarded as non-existent, or as a reserved bit, that is, the bit does not indicate any information. Therefore, the TRP field can also indirectly indicate whether there is an AC field in the current byte.
  • the value of the AC field in the byte can be set to 0, then the following Candidate RS ID field will be regarded as a reserved bit.
  • the AC field indicates whether there is a Candidate RS ID in the current byte.
  • the measured value of at least one reference signal in the candidate reference signal list is higher than the configured threshold (If at least one of the SSBs with SS-RSRP above rsrp-ThresholdBFR among the SSBs in candidateBeamRSSCellList or the CSI-RSs with CSI-RSRP above rsrp-ThresholdBFR among the CSI-RSs in candidateBeamRSSCellList is available), the AC field is set to 1, otherwise, it is set to 0.
  • the presence of the Candidate RS ID field is also indicated when the AC field is set to 1. If the AC field is set to 0, the byte where the Candidate RS ID field is located is regarded as a reserved bit.
  • Candidate RS ID This field is set to the serial number of the reference signal whose measured value is above the configured threshold. (This field is set to the index of an SSB with SS-RSRP above rsrp-ThresholdBFR among the SSBs in candidateBeamRSSCellList or to the index of a CSI-RS with CSI-RSRP above rsrp-ThresholdBFR among the In de CSI-RSS am RSSCellList of an SSB or CSI-RS is the index of an entry in candidateBeamRSSCellList corresponding to the SSB or CSI-RS).
  • the R field is a reserved bit, usually set to 0.
  • these fields are set to 0 or 1 in different situations, correspondingly, they can also be set to 1 or 0 in corresponding situations, or set to "yes" and "no", which will not be described here limit.
  • domains TRP, AC, Candidate RS ID, R will not always exist as reported.
  • the reported MAC CE at this time only contains the Ci field, and all values of the Ci field are set is "0".
  • the cell where the beam failure is detected is a cell configured with cell specific BFR
  • the MAC CE reported at this time includes not only the Ci field, but also the AC field, and possibly There is a Candidate RS ID, but the TRP field is not included.
  • Table 1 below shows the possible distribution of these fields, where 32 serving cells are taken as an example.
  • the distribution of these fields may also be as shown in Table 2 below.
  • some cells can correspond to one byte, and the byte contains at least the AC field. Some cells can correspond to multiple bytes, and the byte contains at least the TRP field. Therefore the BFR MAC CE is of variable length.
  • the first four bytes always exist, and the fifth byte appears according to the configuration of the serving cell and the detection of beam failure.
  • the fifth byte always corresponds to the index of the serving cell whose i value is set to 1 in the Ci field.
  • the next byte corresponds to the index of the serving cell that is set to 1 in the Ci field.
  • the serving cell-1 corresponding to C1 is configured with cell specific beam failure detection parameters, and the detected candidate beam ID number is 000001.
  • the serving cell-2 corresponding to C2 is configured with two sets of TRP specific beam failure detection parameters.
  • the UE detects the beam failure for the serving cell-1 and the beam failure corresponding to the first TRP of the serving cell-2, and there is no candidate beam satisfying the condition on the first TRP.
  • a value of 1 means that the serving cell corresponding to C1 detects beam failure
  • a value of 1 means that the serving cell corresponding to C2 detects beam failure
  • the fifth byte corresponds to the number of the serving cell that first detects beam failure, here it is C1.
  • the index of the candidate beam is 000001
  • the sixth byte and the seventh byte correspond to the number of the second serving cell that detects beam failure, here is C2. Since this cell is configured with two or two TRPs, there are two bytes corresponding to it.
  • a value of 1 means that the first TRP detects beam failure
  • a value of 0 means that the second TRP has not detected beam failure
  • the length of the MAC CE is 7 bytes.
  • the AC field that appears with the TRP field can also be named AC-TRP field, and such an AC-TRP field only appears when the TRP field is set to "1".
  • the TRP field in the same byte can be regarded as non-existent, or as a reserved bit, that is, this bit does not indicate any information. Therefore, the TRP field can also indirectly indicate whether there is an AC-TRP field in the current byte.
  • the value of the AC-TRP field in the byte can be set to 0, then the following Candidate RS ID field will be regarded as a reserved bit.
  • the AC-TRP field indicates whether there is a Candidate RS ID in the current byte.
  • the measured value of at least one reference signal in the candidate reference signal list is higher than the configured threshold (If at least one of the SSBs with SS-RSRP above rsrp-ThresholdBFR among the SSBs in candidateBeamRSSCellList or the CSI-RSs with CSI-RSRP above rsrp-ThresholdBFR among the CSI-RSs in candidateBeamRSSCellList is available), the AC field is set to 1, otherwise, it is set to 0.
  • the AC-TRP field When the AC-TRP field is set to 1, it also indicates the presence of the Candidate RS ID field. If the AC field is set to 0, the byte where the Candidate RS ID field is located is regarded as a reserved bit.
  • Table 4 shows the possible distribution of the AC-TRP field.
  • the UE generates two different MAC CEs, Cell specific BFR MAC CE and TRP specific BFR MAC CE.
  • the UE can first place the Cell specific BFR MAC CE in the MAC PDU, and then, if there is remaining space and the remaining space is enough to accommodate the TRP specifici BFR MAC CE, then the UE then puts the TRP specific BFR MAC CE is placed in the same MAC PDU. If there is no remaining space, or the remaining space is not enough to accommodate the TRP specifici BFR MAC CE, then the UE will no longer place the TRP specific BFR MAC CE in the same MAC PDU.
  • the UE After completing the MAC PDU assembly, the UE sends the MAC PDU to the base station.
  • Another implementation manner of the above operation may be that, in the process of performing MAC PDU grouping by the UE, the grouping priority of the Cell specific BFR MAC CE is always higher than that of the TRP specific BFR MAC CE.
  • Spcell Pcell or Pscell
  • TRP specific BFR TRP specific BFR
  • the UE can consider that in this case, the grouping priority of the TRP specific BFR MAC CE is higher than that of the Cell specific BFR MAC CE.
  • the specific operation can be that when the UE is performing MAC PDU grouping, for the Cell specific BFR MAC CE and TRP specific BFR MAC CE that are generated or need to be transmitted at the same time,
  • the UE can first place the TRP specific BFR MAC CE in the MAC PDU, and then, if there is remaining space and the remaining space is enough to accommodate the Cell specifici BFR MAC CE, then the UE places the Cell specific BFR MAC CE in the same MAC PDU.
  • the UE can first place the Cell specific BFR MAC CE in the MAC PDU, and then, if there is remaining space and The remaining space is enough to accommodate the TRP specifici BFR MAC CE, then the UE places the TRP specific BFR MAC CE in the same MAC PDU.
  • Embodiment 1 when configuring the relevant parameters of the TRP specific BFR, one of them can be configured as the primary TRP and the other as the secondary TRP.
  • the UE when the UE is configured with discontinuous reception (Discontinuous Reception, DRX), for the serving cell configured with at least two TRP specific BFR related parameters, especially the primary serving cell, if the UE is in the active state (active ), then the UE can perform BFR-related detection and reporting operations on all configured TRPs; if the UE is in the inactive state (inactive), then the UE can only perform BFR-related detection and reporting operations on the primary TRP .
  • DRX discontinuous Reception
  • the UE can also be operated according to the serial number corresponding to the TRP.
  • DRX Discontinuous Reception
  • the UE can Perform BFR-related detection and reporting operations on all configured TRPs; if the UE is inactive, the UE can only perform BFR-related detection and reporting operations on the TRP with the specified sequence number.
  • the TRP with the specified sequence number may be 0, or a TRP corresponding to a preconfigured or indicated sequence number.
  • Fig. 2 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • the user equipment UE200 includes a processor 201 and a memory 202 .
  • the processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 202 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories.
  • Program instructions are stored on memory 202 . When the instructions are executed by the processor 201, the above-mentioned method performed by the user equipment described in detail in the present invention can be executed.
  • the program running on the device according to the present invention may be a program that causes a computer to realize the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), nonvolatile memory (such as flash memory), or other memory systems middle.
  • a program for realizing the functions of the various embodiments of the present invention can be recorded on a computer-readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called “computer system” here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a short-term dynamic storage program is stored, or any other recording medium readable by a computer.
  • circuits for example, single-chip or multi-chip integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application-specific integrated circuits
  • FPGAs field-programmable gate arrays
  • a general-purpose processor can be a microprocessor, or it can be any existing processor, controller, microcontroller, or state machine.
  • the above-mentioned circuits may be digital circuits or analog circuits. Where advances in semiconductor technology have resulted in new integrated circuit technologies that replace existing integrated circuits, one or more embodiments of the invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

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Abstract

本发明提供一种由用户设备执行的方法及用户设备，该方法包括如下步骤：UE生成用于同时报告小区专有波束失败信息和TRP专有波束失败信息的MAC CE；和UE向基站发送该MAC CE，其中，MAC CE存在域Ci、TRP、AC、Candidate RS ID、R，Ci这个域指示了被配置了小区专有BFR或TRP专有BFR的服务小区的波束失败检测情况，i对应于服务小区的序号；TRP这个域指示了在这个TRP上波束失败的检测情况；AC这个域指示了在当前字节中是否存在Candidate RS ID；Candidate RS ID这个域被设置为测量值高于配置的门限值的参考信号的序列号；R这个域为保留比特。

Description

由用户设备执行的方法及用户设备 技术领域
本发明涉及无线通信技术领域，更具体地，本发明涉及由用户设备执行波束失败报告的方法以及相应的用户设备。
背景技术
2019年12月，在第三代合作伙伴计划(3rd Generation Partnership Project：3GPP)RAN#86次全会上，针对版本17的MIMO进一步增强(FeMIMO：Further enhancements on MIMO)的工作项目提出(参见非专利文献：RP-193133New WID：Further enhancements on MIMO for NR)，并获批准。该工作项目的最新版本参见非专利文献：RP-211586 Revised(2nd)WID proposal FeMIMO。该工作项目主要研究多波束(multi-beam)操作的增强，多TRP(multi-TRP)操作的增强，SRS的增强和CSI测量和报告的增强。对于多波束和多TRP操作的增强，包含小区内(intra-cell)的场景也包含小区间(inter-cell)的场景。
在现有技术中，基站可以为UE的每个服务小区配置用于波束失败检测和/或波束失败恢复的参考信号，当通过检测发现当前服务的波束发生波束失败时可以向基站发送包含发生波束失败的小区信息，以及可以检测用于波束失败检测和/或波束失败恢复的参考信号以得到候选波束，并将相关信息通过波束失败恢复过程通知给网络。这样的小区可以被称为是被配置了小区专有BFR(Cell specific BFR)的小区。
在FeMIMO中，为了更好地支持多TRP，可以分别为服务小区的每个TRP配置用于波束失败检测和/或波束失败恢复的参考信号，当通过检测发现当前服务的波束发生波束失败时，可以检测用于波束失败检测和/或波束失败恢复的参考信号以得到候选波束，并将相关信息通过波束失败恢复过程通知给网络。FeMIMO中，可以基于每个TRP地去进行波束失败恢复的 过程。这样的小区可以被称为是被配置了TRP专有BFR(TRP specific BFR)的小区。
本发明讨论在配置了Cell specific BFR和TRP specific BFR的小区如何报告波束失败的相关问题。
发明内容
本发明针对以下问题提出了解决方案，即，针对在配置了Cell specific BFR和TRP specific BFR的小区如何报告波束失败的问题提出了解决方案。
本发明的目的在于，提供一种能够在配置了Cell specific BFR和TRP specific BFR的小区报告波束失败的由用户设备执行的方法以及相应的用户设备。
根据本发明的一个方面，提供了一种由用户设备执行的方法，是用户设备UE执行波束失败报告的方法，包括如下步骤：
UE生成用于同时报告小区专有波束失败信息和TRP专有波束失败信息的MAC CE；和
UE向基站发送所生成的MAC CE，
其中，上述MAC CE存在域Ci、TRP、AC、Candidate RS ID、R，
Ci：这个域指示了被配置了小区专有BFR的服务小区的波束失败检测情况，或者指示了被配置了TRP专有BFR的服务小区的波束失败检测情况，其中，i对应于服务小区的序号；
TRP：这个域指示了在这个TRP上波束失败的检测情况；
AC：这个域指示了在当前字节中是否存在Candidate RS ID；
Candidate RS ID：这个域被设置为测量值高于配置的门限值的参考信号的序列号；
R：这个域为保留比特。
在上述的由用户设备执行的方法中，优选地，
当Ci这个域被设置为0时，如果对应的服务小区被配置了小区专有BFR，那么表示该服务小区没有检测到波束失败；如果对应的服务小区被配置了TRP专有BFR，那么表示在该服务小区的被配置的所有TRP上没有检测到波束失败；
当Ci这个域被设置为1时，如果对应的服务小区被配置了小区专有BFR，那么表示该服务小区检测到波束失败；如果对应的服务小区被配置了TRP专有BFR，那么表示该服务小区上至少在一个TRP上检测到波束失败。
在上述的由用户设备执行的方法中，优选地，
对于被配置了小区专有BFR的服务小区，如果其对应的Ci这个域被置为1，那么存在对应的至少包含AC这个域的字节；
对于被配置了TRP专有BFR的服务小区，如果其对应的Ci这个域被置为1，那么存在对应的至少包含TRP这个域的字节，并且该字节的个数不超过被配置的TRP的个数。
在上述的由用户设备执行的方法中，优选地，
当TRP这个域被设置为0时，表示在这个TRP上没有检测到波束失败；
当TRP这个域被设置为1时，表示在这个TRP上检测到了波束失败。
在上述的由用户设备执行的方法中，优选地，
当TRP这个域被设置为0时，表示在同一字节中的AC这个域视为不存在，或者视为保留比特。
在上述的由用户设备执行的方法中，优选地，
当AC这个域被设置为1时，还指示了存在Candidate RS ID这个域；
当AC这个域被设置为0时，Candidate RS ID这个域所在的字节被视为保留比特位。
在上述的由用户设备执行的方法中，优选地，还包括如下步骤：
UE生成小区专有BFR MAC CE和TRP专有BFR MAC CE两个不同的MAC CE；
UE进行MAC PDU组包；和
完成MAC PDU组包后，UE向基站发送该MAC PDU。
在上述的由用户设备执行的方法中，优选地，
UE在进行MAC PDU组包的过程中，执行小区专有BFR MAC CE的组包优先级总是高于TRP专有BFR MAC CE的组包优先级的操作。
在上述的由用户设备执行的方法中，优选地，
在特殊小区被配置了TRP专有BFR时，如果所生成的TRP专有BFR MAC CE中包含了特殊小区的TRP的波束失败信息，那么UE执行TRP专有BFR MAC CE的组包优先级高于小区专有BFR MAC CE的组包优先级的 操作。
根据本发明的另一个方面，提供了一种用户设备，包括：
处理器；以及
存储器，上述存储器上存储有指令，
上述指令在由上述处理器运行时，使上述用户设备执行根据上文所描述的方法。
根据本公开所涉及的由用户设备执行的方法以及相应的用户设备，能够在配置了Cell specific BFR和TRP specific BFR的小区报告波束失败。
附图说明
图1是表示本发明的一实施例涉及的由用户设备执行的方法的流程图。
图2是本发明涉及的用户设备UE的简要结构框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下面描述本发明涉及的部分术语，术语的具体含义见3GPP最新标准规范。
UE：User Equipment用户设备
NR：New Radio新一代无线技术
RRC：Radio Resource Control无线资源控制
MAC：Medium Access Control，媒质接入控制
RRC_CONNECTED：RRC连接态
RRC_INACTIVE：RRC非激活态
RRC_IDLE：RRC空闲态
RAN：Radio Access Network，无线接入网
RSRP：Reference Signal Receiving Power，参考信号接收功率
AS：Access Stratum，接入层
PDCCH：Physical downlink control channel，物理下行控制信道
BWP：Bandwidth Part，带宽片段
DCI：Downlink Control Information，下行控制信息
DL：Downlink，下行
IE：Information Element，信息元素
CE：Control Element，控制元素
MAC CE：MAC control element MAC控制元素
PDU：Protocol Data Unit协议数据单元
MAC PDU：MAC Protocol Data Unit，MAC协议数据单元
MIB：Master Information Block，主信息块
SIB：System Information Block，系统信息块
RLM：Radio Link Monitoring，无线链路监测
BFD：Beam Failure Detection，波束失败检测
RLF：Radio Link Failure，无线链路失败
BFR：Beam Failure Recovery，波束失败恢复
BLER：Block Error Rate，误块率
RRM：Radio Resource Management，无线资源管理
Serving Cell：A PCell，a PSCell，or an SCell，服务小区，可以是PCell，PSCell或者SCell
SpCell：Special Cell，特殊小区，可以是PCell或PSCell。
PCell：Primary Cell，主小区
PSCell：Primary SCG Cell，主SCG小区
SCell：Secondary Cell，辅小区
SCG：Secondary Cell Group，辅小区组
C-RNTI：Cell RNTI，小区RNTI
RNTI：Radio Network Temporary Identifier，无线网络临时标识
HARQ：Hybrid Automatic Repeat Request，混合自动请求重传
SINR：Signal to Noise and Interference Ratio，信号与噪声加干扰比
DRB：(user)Data Radio Bearer，数据无线承载
MIMO：Multiple-Input Multiple-Output多输入多输出
TRP：Transmit/Receive Point发送/接收端口
TCI：Transmission Configuration Indicator传输配置指示
SRS：Sounding Reference Signal探测参考信号
CSI：Channel-State Information信道状态信息
PDSCH：Physical Downlink Shared Channel物理下行共享信道
PDCCH：Physical Downlink Control Channel物理下行控制信道
PUSCH：Physical Uplink Shared Channel物理上行共享信道
PUCCH：Physical Uplink Control Channel物理上行控制信道
PCI：Physical Cell Identifier物理小区标识
UL-SCH：Uplink Shared Channel上行共享信道
Candidate RS ID：候选参考信号标识
本发明中，网络、基站和RAN可互换使用，所述网络可以是长期演进LTE网络、新无线访问技术(New RAT，NR)网络、增强的长期演进eLTE网络，也可以是3GPP后续演进版本中定义的其他网络。
本发明中，用户设备UE可以指背景技术中所述的支持多波束增强的NR设备，也可以指支持多TRP增强的NR设备，也可以指支持FeMIMO的NR设备，也可以指支持SRS增强的NR设备，也可以指支持CSI测量和报告增强的NR设备，也可以指其他类型的NR设备或者LTE设备。
以下，对本发明的相关技术给出说明。
波束失败检测(BFD)和波束失败恢复(BFR)是在RRC连接态进行的。BFD是UE根据网络配置的参考信号检测波束失败和恢复波束失败。BFD流程可以针对每个Serving Cell，包括SpCell和SCell。BFR流程除了包括BFD，还包括在发生Beam failure时向网络侧报告发生或者检测beam failure事件。配置的用于BFD(或者BFR)流程的参考信号可以是SSB和/或CSI-RS。这里的参考信号用于beam的检测，因此可以称为参考beam(reference beam)。
在多TRP的场景下，一个小区内可以有多个TRP，网络可以为每个TRP配置用于BFD和/或BFR的参考信号或者参考信号集合，这些参考信号间可以有重叠或者没有重叠。每个参考信号集合可以用一个索引来表示，每个索引对应于一个TRP。这样的小区可以被称为是被配置了TRP specific BFR的小区。每一个TRP可以对应于一个参考信号合集。
当UE检测到某个TRP对应的下行链路质量过低(如上所述，或者也可能是定义了新的用于判断链路质量的门限值)，物理层向MAC层上报指示beam failure instance indication。当累计指示BFI(beam failure instance)的个数达到或者超过最大值时，UE可以判定在该TRP上发送了波束失败，进而触发BFR流程。以及，UE还可以检测所述TRP对应的用于BFD和/或BFR的参考信号集合，以便在beam failure时找到候选的参考信号。
当MAC针对所述TRP发起BFR流程中，UE可以向基站上报发生beam failure的TRP的信息，以及可能存在的候选参考信息。这些信息可以携带在MAC CE中，并被发送给基站。这样的MAC CE可以被称为TRP specific BFR MAC CE。
此外，UE的服务小区还可以被配置小区级别的、用于BFD和/或BFR的参考信号集合。这样的小区可以被称为是被配置了Cell specific BFR的小区。
当UE检测到某个小区对应的下行链路质量过低(如上所述，或者也可能是定义了新的用于判断链路质量的门限值)，物理层向MAC层上报指示beam failure instance indication。当累计指示BFI(beam failure instance)的个数达到或者超过最大值时，UE可以判定在该小区上发送了波束失败，进而触发BFR流程。以及，UE还可以检测所述小区对应的、用于BFD和/或BFR的参考信号集合，以便在beam failure时找到候选的参考信号。
在MAC针对所述小区发起BFR流程中，UE可以向基站上报发生beam failure的小区的信息，以及可能存在的候选参考信息。这些信息可以携带在MAC CE中，并被发送给基站。这样的MAC CE可以被称为Cell specific BFR MAC CE。
如果从配置的用于BFR的参考信号的合集的个数来说，被配置了cell specific BFR的小区通常只配置了一组参考信号(或者一个参考信号合集)；被配置了TRP specific BFR的小区至少被配置了两组用于BFR参考信号(或者多个用于BFR的参考信号合集)。因此可以根据被配置的用于BFR的参考信号合集的个数来定义cell specific BFR以及TRP specific BFR。例如仅被配置一组用于BFR的参考信号的小区对应于被配置了cell specific BFR的小区；被配置了至少两组用于BFR的参考信号的小区对应于被配置了TRP specific BFR的小区。这样的说法可以互相替换。
在本发明中，取消、释放、删除、清空和清除等可以互相替换。执行、使用、采用和应用可互相替换。配置和重配置可以互相替换。索引、指示、标识、信息、序号和编号可以互相替换。“集合”和“集”可以互相替换。
“UL-SCH资源”和“UL指配(grant)”可以互相替换。“TRP”、“TRP索引”、“参考信号集合”、“参考信号集合索引”、“BFD参考信号集合”、“BFR参考信号集合”、“BFD参考信号集合索引”、“BFR参考信号集合索引”、“TCI”和“TCI状态”可以互相替换。“TRP BFR MAC CE”也可以有其他名称，只要是用于指示某个TRP的beam failure recovery的MAC CE即可。
以下，详细描述本发明对于上述问题的若干实施例。
实施例1
本实施例给出了一种由用户设备执行的方法，是UE执行波束失败报告的方法，如图1所示，包括如下步骤：
S101：UE生成用于同时报告Cell specific beam failure信息和TRP specific beam failure信息的MAC CE；
S102：UE向基站发送所生成的MAC CE。
本实施例中，设计了一种MAC CE格式，用于同时报告Cell specific beam failure信息和TRP specific beam failure信息。
在该格式中，至少存在域Ci、TRP、AC、Candidate RS ID、R。
其中Ci这个域指示了被配置了cell specific BFR的服务小区的beam failure检测情况，或者指示了被配置了TRP specific BFR的服务小区的beam failure检测情况。
其中i对应于服务小区的序号，例如C1对应于编号为1的服务小区的beam failure检测情况。
当Ci被设置为0时，如果对应的服务小区被配置了cell specific BFR，那么表示该服务小区没有检测到beam failure；如果对应的服务小区被配置了TRP specific BFR，那么表示在该服务小区的被配置的所有TRP上没有检 测到beam failure，例如，如果该小区被配置了两个TRP，则指示的是在两个TRP上都没有检测到beam failure。
优选的，当Ci被配置为0时，还可以指示对应的服务小区虽然检测到了beam failure但是对于候选参考信号的评估还没有完成。这样的服务小区主要是指被配置了cell specific BFR的服务小区。
针对被配置了TRP specific BFR的服务小区，当对应的Ci被设置为0时，可以指示下述任意信息：
在该服务小区的被配置的所有TRP上没有检测到beam failure；
在该服务小区的被配置的至少一个TRP上检测到beam failure，但是对于候选参考信号的评估还没有完成；在其它TRP上没有检测到beam failure；
在该服务小区的被配置的所有TRP上都检测到beam failure，但是对于所有TRP的候选参考信号的评估都还没有完成。
当Ci被设置为1时，如果对应的服务小区被配置了cell specific BFR，那么表示该服务小区检测到beam failure；如果对应的服务小区被配置了TRP specific BFR，那么表示该服务小区上至少在一个TRP上检测到beam failure，例如，该服务小区被配置了两个TRP，那么在下述情况下Ci都会被置为1：
其中一个TRP上检测到beam failure，另外一个TRP上没有检测到beam failure；
或者是在两个TRP上都检测到了beam failure。
优选的，当Ci被设置为1时，还可以表示对应的服务小区检测到了beam failure，并且对于候选参考信号(或者候选beam)的评估已经完成，以及AC field会出现。这样的服务小区主要是指被配置了cell specific BFR的服务小区。针对被配置了TRP specific BFR的服务小区，当对应的Ci被设置为1时，还可以表示TRP field会出现，以及可以指示在该服务小区的被配置的至少一个TRP上检测到beam failure，并且在该TRP上对于候选参考信号的评估已经完成。
对于被设置为1的Ci field，存在对应的一个或者多个字节(octet)，在这样的字节中可以包含下述的AC field，以及TRP field，和/或Candidate RS ID field。
其中对于被配置了Cell specific BFR的服务小区，如果其对应的Ci field 被置为1，那么存在对应的、至少包含AC field的字节。
对于被配置了TRP specific BFR的服务小区，如果其对应的Ci field被置为1，那么存在对应的、至少包含TRP field的字节，并且该字节的个数不超过(小于等于)被配置的TRP的个数。
TRP这个域指示了在这个TRP上beam failure的检测情况。对于被配置了TRP specific BFR的服务小区，存在着包含TRP field的字节。并且根据被配置的TRP的个数，决定所包含的TRP field的字节数。例如，在该服务小区UE被配置了两个TRP，那么当该服务小区上某一个TRP被检测到beam failure时，那么在MAC CE中对应该服务小区，存在两个包含TRP field的字节。其中第一字节对应于第一TRP，第二字节对应于第二TRP。UE可以根据约定或者预先配置获知字节与TRP的对应关系。例如，第一个字节可以对应为编号(index)为0的TRP，第二个字节可以对应为编号为1的TRP，或者反之。如果TRP的个数超过两个，可以用编号的方式类推。还可以是在配置TRP specific BFR的相关参数时，配置其中一个为primay TRP，另外一个为secondary TRP。那么第一个字节可以对应为primary TRP，第二个字节可以对应为secondary TRP。
在该字节中包含的TRP field指示了其对应的TRP上的beam failure的检测情况。
其中，当TRP被设置为0时，那么表示在这个TRP上没有检测到beam failure；反之，当TRP被设置为1时，表示在这个TRP上检测到了beam failure。
优选的，当TRP被设置为0时，还可以指示在该TRP上虽然检测到了beam failure但是对于候选参考信号的评估还没有完成。
以及优选的，当TRP被设置为1时，还可以指示在该TRP上检测到了beam failure，并且对于候选参考信号(或者候选beam)的评估已经完成，以及AC field会出现。
此外，当TRP被设置为0时，在同一字节中的AC field可以视为不存在，或者视为保留比特，即该比特位不指示任何信息。因此TRP field还可以间接指示了在当前字节中是否存在AC field。优选的，当TRP被设置为0时，可以将该字节中的AC field的取值设置为0，那么接下来的Candidate RS IDfield将被视为保留比特。
AC field指示了在当前字节中是否存在Candidate RS ID。当至少有一个在候选参考信号列表中的参考信号的测量值高于配置的门限值时(If at least one of the SSBs with SS-RSRP above rsrp-ThresholdBFR amongst the SSBs in candidateBeamRSSCellList or the CSI-RSs with CSI-RSRP above rsrp-ThresholdBFR amongst the CSI-RSs in candidateBeamRSSCellList is available)，AC field被设置为1，否则，被设置为0。
当AC field被设置为1时还指示了存在Candidate RS ID field。如果AC field被设置为0，则Candidate RS ID field所在的字节被视为保留比特位。
Candidate RS ID：这个field被设置为测量值高于配置的门限值的参考信号的序列号。(This field is set to the index of an SSB with SS-RSRP above rsrp-ThresholdBFR amongst the SSBs in candidateBeamRSSCellList or to the index of a CSI-RS with CSI-RSRP above rsrp-ThresholdBFR amongst the CSI-RSs in candidateBeamRSSCellList.Index of an SSB or CSI-RS is the index of an entry in candidateBeamRSSCellList corresponding to the SSB or CSI-RS)。
R field为保留比特，通常设置为0。
在本文中，为了举例，这些field在不同情况下被设置为0或1，相应地，在对应情况下也可以被设置为1或者0，或者被设置为“是”与“非”，这里不作限制。此外，根据报告情况，域TRP、AC、Candidate RS ID、R不会总是存在。特殊情况下，例如当UE生成该MAC CE时，被检测到beam failure的小区还没有完成候选参考信号的测量，那么此时报告的MAC CE中仅包含Ci field，并且Ci field的取值全部设置为“0”。又例如，当UE生成该MAC CE时，被检测到发生beam failure的小区是被配置了cell specific BFR的小区，那么在此时报告的MAC CE中除了包含Ci field，还包含AC field，以及可能存在Candidate RS ID，但是没有包含TRP field。
如下的表1中显示了这些field可能的分布情况，其中以32个服务小区为例。
[表1]
Figure PCTCN2022109928-appb-000001
还可以这些field的分布还可以是如下的表2所示那样的情况。
[表2]
Figure PCTCN2022109928-appb-000002
根据服务小区的配置情况，有的小区可以对应一个字节，且该字节至少包含AC field。有的小区可以对应多个字节，且该字节中至少包含了TRP field。因此该BFR MAC CE是可变长度的。在前述例子中，前四个字节总是存在的，而从第五个字节开始根据服务小区的配置情况，以及beam failure 的检测情况出现。第五字节总是对应着Ci field中被设置为1的且i值最小的那个服务小区的index。然后按照i值的升序排列，接下来的字节对应Ci field中被设置为1的那个服务小区的index。
例如：C1对应的服务小区-1被配置了cell specific beam failure检测参数，以及检测到候选beam ID的编号为000001。
C2对应的服务小区-2被配置了两组TRP specific beam failure检测参数。
在某一时刻UE检测到对于服务小区-1的beam failure，以及对应于服务小区-2的第一TRP的beam failure，并且在第一TRP上没有满足条件的候选beam。
基于该情况，该MAC CE的字节填充情况如下的表3所示。
[表3]
0 0 0 0 0 1(note 2) 1(note 1) 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
1(note 3) 0(note 4) 0 0 0 0 0 1(note 5)
1(note 6) 0(note 7) 0 0 0 0 0 0(note 8)
0(note 9) 0(note 10) 0 0 0 0 0 0(note 11)
Note 1：取值为1表示对应于C1的服务小区检测到beam failure
Note 2：取值为1表示对应于C2的服务小区检测到beam failure
第五字节对应于第一个检测到beam failure的服务小区的编号，这里为C1。
Note3：取值为1表示存在候选beam
Note 4：为保留比特
Note 5：候选beam的index为000001
第六字节和第七字节对应于第二个检测到beam failure的服务小区的编号，这里为C2，由于该小区被配置两两个TRP，因此有两个字节与之相对 应。
Note6：取值为1表示第一TRP检测到beam failure
Note 7：取值为0表示不存在候选beam
Note 8：为保留比特
Note 9：取值为0表示第二TRP没有检测到beam failure
Note 10：为保留比特，或者是被设置为0的AC field
Note 11：为保留比特
该MAC CE的长度为7个字节。
此外，为了对AC filed进行区分，对于伴随着TRP field出现的AC field还可以被命名为AC-TRP field，这样的AC-TRP field仅在TRP field被设置为“1”的时候出现。
当TRP被设置为0时，在同一字节中的AC-TRP field可以视为不存在，或者视为保留比特，即该比特位不指示任何信息。因此TRP field还可以间接指示了在当前字节中是否存在AC-TRP field。优选的，当TRP被设置为0时，可以将该字节中的AC-TRP field的取值设置为0，那么接下来的Candidate RS IDfield将被视为保留比特。
AC-TRP field指示了在当前字节中是否存在Candidate RS ID。当至少有一个在候选参考信号列表中的参考信号的测量值高于配置的门限值时(If at least one of the SSBs with SS-RSRP above rsrp-ThresholdBFR amongst the SSBs in candidateBeamRSSCellList or the CSI-RSs with CSI-RSRP above rsrp-ThresholdBFR amongst the CSI-RSs in candidateBeamRSSCellList is available)，AC field被设置为1，否则，被设置为0。
当AC-TRP field被设置为1时还指示了存在Candidate RS ID field。如果AC field被设置为0，则Candidate RS ID field所在的字节被视为保留比特位。
表4 示意了AC-TRP field的可能的分布情况。
[表4]
Figure PCTCN2022109928-appb-000003
实施例2
在本实施例中，UE生成了Cell specific BFR MAC CE和TRP specific BFR MAC CE两个不同的MAC CE。在进行MAC PDU组包时，UE可以先将Cell specific BFR MAC CE放置于MAC PDU中，然后，如果有剩余的空间且剩余空间足够容纳TRP specifici BFR MAC CE，那么UE再将该TRP specific BFR MAC CE放置于同一个MAC PDU中。如果没有剩余空间，或者是剩余空间不足够容纳TRP specifici BFR MAC CE，那么UE不再将该TRP specific BFR MAC CE放置于同一个MAC PDU中。
完成MAC PDU组装后，UE向基站发送该MAC PDU。
上述操作的又一实施方式可以是，UE在进行MAC PDU组包的过程中，执行Cell specific BFR MAC CE的组包优先级总是高于TRP specific BFR MAC CE的操作。
在特殊情况下，例如Spcell(Pcell或者是Pscell)被配置了TRP specific BFR。那么当生成的TRP specific BFR MAC CE中包含了Spcell的TRP的beam failure信息，那么UE可以认为在这样的情况下，TRP specific BFR MAC CE的组包优先级高于Cell specific BFR MAC CE。
具体操作可以是UE在进行MAC PDU组包时，对于同时生成的或者是 需要传输的Cell specific BFR MAC CE和TRP specific BFR MAC CE，
-如果TRP specific BFR MAC CE中包含了Spcell的TRP的beam failure信息，那么UE可以先将TRP specific BFR MAC CE放置于MAC PDU中，然后，如果有剩余的空间且剩余空间足够容纳Cell specifici BFR MAC CE，那么UE再将该Cell specific BFR MAC CE放置于同一个MAC PDU中。
-如果TRP specific BFR MAC CE中没有包含Spcell的TRP的beam failure信息，那么在进行MAC PDU组包时，UE可以先将Cell specific BFR MAC CE放置于MAC PDU中，然后，如果有剩余的空间且剩余空间足够容纳TRP specifici BFR MAC CE，那么UE再将该TRP specific BFR MAC CE放置于同一个MAC PDU中。
实施例3
在实施例1中提到了在配置TRP specific BFR的相关参数时，可以配置其中一个为primay TRP，另外一个为secondary TRP。为了实现UE节能，当UE被配置了不连续接收(Discontinuous Reception，DRX)时，对于被配置了至少2个TRP specific BFR相关参数的服务小区，特别是主服务小区，如果UE处于激活态(active)，那么UE可以在被配置的、所有TRP上执行BFR的相关检测、报告等操作；如果UE处于去激活态(inactive)，那么UE可以仅在primary TRP上执行BFR的相关检测、报告等操作。
还可以是根据TRP对应的序号来操作。当UE被配置了不连续接收(Discontinuous Reception，DRX)时，对于被配置了至少2个TRP specific BFR相关参数的服务小区，特别是主服务小区，如果UE处于激活态(active)，那么UE可以在被配置的、所有TRP上执行BFR的相关检测、报告等操作；如果UE处于去激活态(inactive)，那么UE可以仅在指定序号的TRP上执行BFR的相关检测、报告等操作。这个指定序号的TRP可以是序号为0，或者是被预先配置或指示的序号对应的TRP。
图2是本发明涉及的用户设备UE的简要结构框图。如图2所示，所述用户设备UE200包括处理器201和存储器202。处理器201例如可以包括 微处理器、微控制器、嵌入式处理器等。存储器202例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器202上存储有程序指令。所述指令在由处理器201运行时，可以执行本发明详细描述的由用户设备执行的上述方法。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。所述程序或由所述程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器系统中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机系统读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机系统”可以是嵌入在所述设备中的计算机系统，可以包括操作系统或硬件(如外围设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体 的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设计改动。另外，可以在权利要求的范围内对本发明进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (10)

  1. 一种由用户设备执行的方法，是用户设备UE执行波束失败报告的方法，包括如下步骤：
    UE生成用于同时报告小区专有波束失败信息和TRP专有波束失败信息的MAC CE；和
    UE向基站发送所生成的MAC CE，
    其中，上述MAC CE存在域Ci、TRP、AC、Candidate RS ID、R，
    Ci：这个域指示了被配置了小区专有BFR的服务小区的波束失败检测情况，或者指示了被配置了TRP专有BFR的服务小区的波束失败检测情况，其中，i对应于服务小区的序号；
    TRP：这个域指示了在这个TRP上波束失败的检测情况；
    AC：这个域指示了在当前字节中是否存在Candidate RS ID；
    Candidate RS ID：这个域被设置为测量值高于配置的门限值的参考信号的序列号；
    R：这个域为保留比特。
  2. 根据权利要求1所述的由用户设备执行的方法，其中，
    当Ci这个域被设置为0时，如果对应的服务小区被配置了小区专有BFR，那么表示该服务小区没有检测到波束失败；如果对应的服务小区被配置了TRP专有BFR，那么表示在该服务小区的被配置的所有TRP上没有检测到波束失败；
    当Ci这个域被设置为1时，如果对应的服务小区被配置了小区专有BFR，那么表示该服务小区检测到波束失败；如果对应的服务小区被配置了TRP专有BFR，那么表示该服务小区上至少在一个TRP上检测到波束失败。
  3. 根据权利要求2所述的由用户设备执行的方法，其中，
    对于被配置了小区专有BFR的服务小区，如果其对应的Ci这个域被置为1，那么存在对应的至少包含AC这个域的字节；
    对于被配置了TRP专有BFR的服务小区，如果其对应的Ci这个域被置为1，那么存在对应的至少包含TRP这个域的字节，并且该字节的个数不超过被配置的TRP的个数。
  4. 根据权利要求1至3中任一项所述的由用户设备执行的方法，其中，
    当TRP这个域被设置为0时，表示在这个TRP上没有检测到波束失败；
    当TRP这个域被设置为1时，表示在这个TRP上检测到了波束失败。
  5. 根据权利要求1至3中任一项所述的由用户设备执行的方法，其中，
    当TRP这个域被设置为0时，表示在同一字节中的AC这个域视为不存在，或者视为保留比特。
  6. 根据权利要求1至3中任一项所述的由用户设备执行的方法，其中，
    当AC这个域被设置为1时，还指示了存在Candidate RS ID这个域；
    当AC这个域被设置为0时，Candidate RS ID这个域所在的字节被视为保留比特位。
  7. 根据权利要求1至3中任一项所述的由用户设备执行的方法，其中，还包括如下步骤：
    UE生成小区专有BFR MAC CE和TRP专有BFR MAC CE两个不同的MAC CE；
    UE进行MAC PDU组包；和
    完成MAC PDU组包后，UE向基站发送该MAC PDU。
  8. 根据权利要求7所述的由用户设备执行的方法，其中，
    UE在进行MAC PDU组包的过程中，执行小区专有BFR MAC CE的组包优先级总是高于TRP专有BFR MAC CE的组包优先级的操作。
  9. 根据权利要求8所述的由用户设备执行的方法，其中，
    在特殊小区被配置了TRP专有BFR时，如果所生成的TRP专有BFRMAC CE中包含了特殊小区的TRP的波束失败信息，那么UE执行TRP专有BFR MAC CE的组包优先级高于小区专有BFR MAC CE的组包优先级的操作。
  10. 一种用户设备，包括：
    处理器；以及
    存储器，存储有指令，
    上述指令在由上述处理器运行时，使上述用户设备执行根据权利要求1-9中任一项所述的方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110418357A (zh) * 2018-04-26 2019-11-05 华为技术有限公司 通信方法和装置
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备
WO2021089202A1 (en) * 2019-11-05 2021-05-14 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for indicating a failure event
WO2021114743A1 (zh) * 2019-12-10 2021-06-17 夏普株式会社 由用户设备执行的方法及用户设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110418357A (zh) * 2018-04-26 2019-11-05 华为技术有限公司 通信方法和装置
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备
WO2021089202A1 (en) * 2019-11-05 2021-05-14 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for indicating a failure event
WO2021114743A1 (zh) * 2019-12-10 2021-06-17 夏普株式会社 由用户设备执行的方法及用户设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NOKIA, NOKIA SHANGHAI BELL: "Beam failure with mTRP", 3GPP DRAFT; R2-2105870, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic; 20210519 - 20210527, 11 May 2021 (2021-05-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052007336 *

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