WO2022257136A1 - 波束失败恢复方法、装置及存储介质 - Google Patents

波束失败恢复方法、装置及存储介质 Download PDF

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Publication number
WO2022257136A1
WO2022257136A1 PCT/CN2021/099835 CN2021099835W WO2022257136A1 WO 2022257136 A1 WO2022257136 A1 WO 2022257136A1 CN 2021099835 W CN2021099835 W CN 2021099835W WO 2022257136 A1 WO2022257136 A1 WO 2022257136A1
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WIPO (PCT)
Prior art keywords
beam failure
failure recovery
time
trp
random access
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PCT/CN2021/099835
Other languages
English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180001833.8A priority Critical patent/CN113545122B/zh
Priority to JP2023576031A priority patent/JP2024522374A/ja
Priority to KR1020247001061A priority patent/KR20240018656A/ko
Priority to EP21944643.2A priority patent/EP4354939A4/en
Priority to US18/566,794 priority patent/US20240276578A1/en
Priority to CN202410239452.9A priority patent/CN118232976A/zh
Priority to PCT/CN2021/099835 priority patent/WO2022257136A1/zh
Priority to BR112023025893A priority patent/BR112023025893A2/pt
Publication of WO2022257136A1 publication Critical patent/WO2022257136A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06964—Re-selection of one or more beams after beam failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present disclosure relates to the technical field of communications, and in particular to a beam failure recovery method, device and storage medium.
  • New Radio for example, when the communication frequency band is in frequency range 2, due to the fast attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and reception.
  • a network device is configured with multiple transmission and reception points (TRP).
  • TRP transmission and reception points
  • the network device can use the multiple TRPs to provide services for the terminal, for example, use multiple TRPs to send a physical downlink control channel (physical downlink control channel, PDCCH) to the terminal.
  • PDCCH physical downlink control channel
  • the network device uses the TRP to send the PDCCH to the terminal, and the terminal detects reference signal resources used for failure detection.
  • the terminal detects that the wireless link value of the reference signal used for failure detection is lower than the threshold, the terminal needs to initiate a beam failure recovery (beam failure recovery, BFR) request to the network device to perform BFR.
  • BFR beam failure recovery
  • cell-level BFR is defined.
  • a BFR of (Special cell, SpCell) is defined.
  • the Special cell includes a primary cell (Primary cell, Pcell) and a primary secondary cell (Primary secondary cell, PScell).
  • the BFR mechanism of the SpCell is a random access BFR mechanism.
  • BFR at the secondary cell (secondary cell, SCell) level
  • its mechanism is a physical uplink control channel (physical uplink control channel, PUCCH)-scheduling request (scheduling request, SR) mechanism, and/or a physical uplink shared channel ( Physical uplink share channel, PUSCH)-Medium Access Control (Medium Access Control, MAC) Control Element (Control Element, CE) mechanism, that is, when the terminal detects that the Scell has beam failure, it sends MAC CE information on the PUSCH resource to indicate Beam failure recovery related information.
  • the PUSCH resources may be dedicated to sending scheduling request requests on the PUCCH-SR resources of the BFR, or may be other PUSCH resources.
  • TRP-level BFR (TRP specific BFR) is proposed, that is, when a terminal is configured with Multi-TRP PDCCH transmission, when a beam failure occurs in a TRP, the terminal can send a beam failure recovery request to inform the network
  • the device has a TRP, beam failure occurs and BFR is requested.
  • the TRP specific BFR has now agreed to use SCell-based PUCCH-SR and/or PUSCH MAC CE mechanisms to implement beam failure recovery requests.
  • SCell-based PUCCH-SR and/or PUSCH MAC CE mechanisms to implement beam failure recovery requests.
  • the SpCell if multiple TRPs have beam failures, whether to trigger a beam failure recovery request based on random access, and how to trigger it, is a problem that needs to be solved.
  • the present disclosure provides a beam failure recovery method, device and storage medium.
  • a beam failure recovery method which is applied to a terminal, and the method includes:
  • the terminal In response to the terminal being configured with multiple TRPs, perform beam failure monitoring of the multiple TRPs; in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, trigger beam failure recovery based on random access .
  • the method before triggering beam failure recovery based on random access, the method further includes: determining that a trigger condition for triggering random access beam failure recovery is met.
  • determining that the trigger condition for triggering random access beam failure recovery is met includes:
  • the first time is The time when beam failure occurs in the first TRP is monitored
  • the second time is the time when a scheduling request is sent on the physical uplink control channel resource.
  • determining that the trigger condition for triggering random access beam failure recovery is met includes:
  • determining that the trigger condition for triggering random access beam failure recovery is met further includes:
  • the second time is sending the scheduled time on the physical uplink control channel resource. time of request.
  • determining that the trigger condition for triggering random access beam failure recovery is met includes:
  • the fourth time is when the first physical uplink shared
  • the time at which the MAC CE information related to the TRP with beam failure occurs is sent on the channel.
  • determining that the trigger condition for triggering random access beam failure recovery is met further includes:
  • the beam corresponding to the first physical uplink shared channel is a beam where beam failure occurs, determine that the trigger condition for triggering random access beam failure recovery is met;
  • the first physical uplink shared channel is the first downlink control information scheduling, or is a physical uplink shared channel configured with grant type 1 or type 2.
  • determining that the trigger condition for triggering random access beam failure recovery is met includes:
  • the trigger condition for triggering random access beam failure recovery is met; the fifth time is when the second downlink control is received information, the second downlink control information is used to determine that the network device has received the MAC CE information.
  • the second downlink control information is used to schedule a second physical uplink shared channel
  • the hybrid automatic repeat request identifier of the second physical uplink shared channel scheduled by the second downlink control information is the same as the hybrid automatic repeat request identifier of the first physical uplink shared channel, wherein the first physical uplink shared channel uses The physical uplink shared channel used to send the MAC CE information related to the TRP where the beam failure occurred; and/or the new data indication of the second physical uplink shared channel scheduled by the second downlink control information changes.
  • determining that the trigger condition for triggering a random access beam failure recovery request is met further includes:
  • the fourth time being the first physical uplink shared channel The time at which the MAC CE information related to the TRP where the beam failure occurs is sent.
  • determining that the trigger condition for triggering random access beam failure recovery is met includes:
  • the sixth time is updating the first TRP beam time.
  • the method further includes: triggering beam failure recovery at the TRP level in response to detecting, after the sixth time period, that there is a second TRP in which a beam failure occurs among the plurality of TRPs.
  • the triggering TRP-level beam failure recovery includes:
  • the method further includes: triggering TRP-level beam failure recovery, or not triggering TRP-level beam failure recovery.
  • the terminal is configured with multiple TRPs, including: the terminal is configured with multiple reference signal resource sets for beam failure monitoring, and/or the terminal is configured with multiple control resources Pool index value.
  • a beam failure recovery device including:
  • the monitoring unit is configured to perform beam failure monitoring of multiple TRPs when the terminal is configured with multiple TRPs; the processing unit is configured to monitor beam failures among the multiple TRPs detected by the monitoring unit. In the case of the first TRP, beam failure recovery based on random access is triggered.
  • the processing unit is further configured to: before triggering random access-based beam failure recovery, determine that a trigger condition for triggering random access beam failure recovery is satisfied.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met; the The second time is the time when the scheduling request is sent on the physical uplink control channel resource.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met; the The third time is the time when the first downlink control information for scheduling the physical uplink shared channel is received.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met, and the second time is at The time at which scheduling requests are sent on physical uplink control channel resources.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met; the The fourth time is the time when the media access control element MAC CE information related to the TRP where the beam failure occurs is sent on the first physical uplink shared channel.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met;
  • the first physical uplink shared channel is the first downlink control information scheduling, or is a physical uplink shared channel configured with grant type 1 or type 2.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met; the The fifth time is the time when the second downlink control information is received, and the second downlink control information is used to determine that the network device has received the MAC CE information.
  • the second downlink control information is used to schedule a second physical uplink shared channel
  • the hybrid automatic repeat request identifier of the second physical uplink shared channel scheduled by the second downlink control information is the same as the hybrid automatic repeat request identifier of the first physical uplink shared channel, wherein the first physical uplink shared channel uses The physical uplink shared channel used to send the MAC CE information related to the TRP where the beam failure occurred; and/or the new data indication of the second physical uplink shared channel scheduled by the second downlink control information changes.
  • the processing unit determines that a trigger condition for triggering random access beam failure recovery is met, the fourth time is at The time at which the MAC CE information related to the TRP in which the beam failure occurs is sent on the first physical uplink shared channel.
  • the sixth The time is the time for updating the beam of the first TRP.
  • the processing unit in response to the monitoring unit again monitoring that there is a second TRP in the plurality of TRPs in which beam failure occurs after the sixth time, the processing unit triggers beam failure recovery at the TRP level.
  • the triggering TRP-level beam failure recovery includes: triggering beam failure recovery based on the Physical Uplink Control Channel Scheduling Request PUCCH-SR and/or the Physical Uplink Shared Channel Media Access Control Element PUSCH MAC CE.
  • the processing unit is further configured to trigger beam failure recovery at the TRP level, or not trigger beam failure recovery at the TRP level.
  • the terminal is configured with multiple TRPs, including: the terminal is configured with multiple reference signal resource sets for beam failure monitoring, and/or the terminal is configured with multiple control resources Pool index value.
  • a beam failure recovery device including:
  • processor ; memory for storing instructions executable by the processor;
  • the processor is configured to: execute the beam failure recovery method described in the first aspect or any implementation manner of the first aspect.
  • a storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the terminal, the terminal can execute the first aspect or the first The beam failure recovery method described in any one of the implementation manners of the aspect.
  • the technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:
  • beam failure monitoring of multiple TRPs is performed.
  • beam failure recovery based on random access is triggered to implement beam failure recovery based on random access in a timely manner in multiple TRP scenarios to ensure beam failure recovery timeliness and effectiveness.
  • Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 3 is a flowchart of a BFR method according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 6 is a flowchart of a BFR method according to an exemplary embodiment.
  • Fig. 7 is a flowchart of a BFR method according to an exemplary embodiment.
  • Fig. 8 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 9 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 10 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 11 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 12 is a flow chart showing a BFR method according to an exemplary embodiment.
  • Fig. 13 is a block diagram of a BFR device according to an exemplary embodiment.
  • Fig. 14 is a block diagram showing a device for BFR according to an exemplary embodiment.
  • the wireless communication system includes a terminal and a network device.
  • the terminal is connected to the network device through wireless resources, and sends and receives data.
  • the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1.
  • the embodiment of the present disclosure does not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system in the embodiment of the present disclosure is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Multiple Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • single Carrier FDMA single Carrier FDMA
  • SC-FDMA carrier sense Multiple Access/Conflict Avoidance
  • Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network device may be: a base station, an evolved base station (evolved node B, eNB), a home base station, an access point (access point, AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay A node, a wireless backhaul node, a transmission point (transmission point, TP) or a transmission and reception point (transmission and reception point, TRP), etc., can also be a gNB in an NR system, or it can also be a component or a part of equipment that constitutes a base station Wait.
  • the network device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, no limitation is imposed on the specific technology and specific device form adopted by the network device.
  • terminals involved in this disclosure can also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • a device providing voice and/or data connectivity for example, a terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • examples of some terminals are: smart phones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), handheld computers, personal digital assistants (Personal Digital Assistant, PDA), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal.
  • data transmission is performed between a network device and a terminal based on a beam.
  • the network device can use TRP to provide services for the terminal.
  • a network device may use TRP to send a PDCCH for a terminal.
  • the terminal monitors that the radio link quality of the reference signal resource used for failure detection is lower than a threshold, the terminal will perform BFR.
  • the reference signal resource used for failure detection can be displayed and configured by the base station. If the base station does not display the configuration, it is the transmission state indication (TCI) corresponding to the control resource set (Control Resource set, CORESET) used to send the PDCCH. ) state for QCL type D reference signal resources.
  • TCI transmission state indication
  • the terminal performs BFR, which is also referred to as the terminal performing Link recovery.
  • the mechanism for the terminal to perform BFR includes cell specific BFR.
  • Cell specific BFR includes random access BFR mechanism (Spcell specific BFR), BFR mechanism based on PUCCH-SR and/or PUSCH MAC CE (Scell specific BFR).
  • the mechanism for the terminal to perform BFR also includes a TRP-level BFR mechanism (TRP specific BFR).
  • TRP specific BFR TRP-level BFR mechanism
  • the BFR mechanism based on random access includes a contention based random access method (CBRA) and a contention free random access method (CFRA).
  • CBRA contention based random access method
  • CFRA contention free random access method
  • the terminal Under the BFR mechanism based on Scell specific BFR, that is, PUCCH-SR and/or PUSCH MAC CE, the terminal performs beam failure recovery based on the PUCCH-SR and/or PUSCH MAC CE mechanism. Among them, when the terminal detects that the beam failure occurs in the secondary cell, it sends MAC CE information on the PUSCH resource to indicate information related to beam failure recovery, and the PUSCH resource can be obtained by sending a scheduling request on the PUCCH-SR dedicated to BFR, or It can be other PUSCH resources. Under the BFR mechanism based on the TRP level, the Scell specific BFR will be reused.
  • the terminal when the terminal performs beam failure monitoring, it usually monitors a reference signal (reference signal, RS) used for TRP beam failure detection.
  • RS reference signal
  • the radio link quality (radio link quality) of the corresponding RS is lower than the threshold value for N times, it is determined that the RS has failed to be monitored; when all the RSs used for the TRP failure detection fail, it is determined that the TRP has been monitored. Beam failed.
  • a Multi-TRP PDCCH scenario exists between a terminal and a network device.
  • the terminal is configured with both the random access BFR mechanism and the TRP-level BFR mechanism in the same cell.
  • the same cell will be configured with multiple reference signal sets for failure detection, wherein each reference signal in the multiple reference signal sets for failure detection
  • the set can be displayed and configured by the base station. If the base station does not display the configuration, the terminal can determine it based on the reference signal of QCL Type D in the TCI state of CORESET. In the case that beam failure occurs in two or more TRPs among multiple TRPs, whether to trigger cell-level BFR and perform random access BFR is not provided in the related art.
  • An embodiment of the present disclosure provides a BFR method, in which a BFR based on random access is triggered when a TRP with beam failure among multiple TRPs is detected.
  • one of the at least two TRPs in which beam failure occurs among multiple TRPs configured for the terminal is called a first TRP, and the other is called a second TRP.
  • Fig. 2 is a flowchart of a BFR method according to an exemplary embodiment. As shown in Fig. 2, the BFR method is used in a terminal configured with a random access BFR mechanism and a TRP level in the same cell The BFR mechanism.
  • the BFR method provided by the embodiment of the present disclosure includes the following steps.
  • step S11 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S12 in response to detecting that there is a first TRP in which beam failure occurs among the plurality of TRPs, BFR based on random access is triggered.
  • the terminal is configured with multiple TRPs, which can be understood as being configured with multiple reference signal resource sets for beam failure monitoring, and/or, the terminal is configured with multiple control resource pool index values (CORESETPoolIndex value).
  • the terminal is configured with multiple reference signal resource sets for beam failure detection, which can be understood as the terminal is displayed and configured with multiple reference signal resource sets for beam failure detection.
  • the terminal may determine one or more reference signal resource sets for failure detection based on CORESETPoolIndex or CORESETGroup.
  • the terminal determines the reference signal resource used for failure detection according to the reference signal resource of QCL Type D of the TCI state of at least one CORESET in all CORESETs.
  • the terminal determines the CORESETPoolIndex or CORESETGroup corresponding to the CORESETPoolIndex or CORESETGroup according to the reference signal resource of QCL Type D of the TCI state of at least one CORESET in all CORESETs corresponding to the same CORESETPoolIndex or CORESETGroup Reference signal resource for failed detection.
  • each CORESETPoolIndex or CORESETGroup corresponds to a reference signal resource for failure detection.
  • the terminal is configured with multiple TRPs
  • the terminal may determine multiple TRP configurations according to communication standards; or the terminal may determine multiple TRP configurations according to configuration parameters or configuration signaling sent by the base station; or the terminal may negotiate with the base station to determine multiple TRP configurations, and the Multiple TRPs are subsets or proper subsets of multiple TRPs of the base station (so there is a possibility that the base station can make different UEs correspond to different TRP sets, or some UEs correspond to the same TRP set while others corresponding to different TRP sets). The same content will not be repeated one by one later.
  • the terminal when the terminal performs beam failure monitoring of multiple TRPs, it may be that the terminal monitors respective reference signal sets corresponding to beam failure monitoring of some TRPs or all TRPs in the multiple TRPs. For example, the terminal monitors respective reference signal sets for beam failure detection of the first TRP and/or the second TRP.
  • the method of determining that there is a TRP with beam failure in the traditional method can be used. For example, for a certain TRP, for each RS in the reference signal set used for failure detection, when it is detected that the radio link quality of the corresponding RS is lower than the threshold for N times, it is determined that beam failure has occurred in the TRP.
  • beam failure recovery when it is detected that there is the first TRP with beam failure among the multiple TRPs, beam failure recovery based on random access can be triggered, so as to implement random access-based recovery in a timely manner under multiple TRP scenarios. Beam failure recovery ensures the timeliness and effectiveness of beam failure recovery.
  • the terminal can trigger the random access-based BFR when it is determined that the trigger condition for triggering the random access BFR is met.
  • Fig. 3 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 3, the BFR method is used in a terminal and includes the following steps.
  • step S21 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S22 in response to detecting that there is a first TRP with beam failure among the multiple TRPs, and a trigger condition for triggering random access BFR is met, BFR based on random access is triggered.
  • the triggering condition that needs to be satisfied to trigger the random access-based BFR may be determined during the TRP-specific BFR process after monitoring the presence of the first TRP with beam failure among the multiple TRPs.
  • the terminal when the terminal detects that there is a first TRP in which beam failure occurs among multiple TRPs, the terminal can wait for the physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource in the shortest time. Send a scheduling request.
  • PUCCH Physical Uplink Control Channel
  • the time when the terminal detects the first TRP with beam failure among multiple TRPs is called the first time (t1)
  • the time when the terminal sends the scheduling request on the PUCCH-SR resource is called is the second time (t2).
  • the terminal monitors respective reference signal sets for beam failure detection of the first TRP and/or the second TRP.
  • the terminal waits for the PUCCH-SR at the latest time t2.
  • the terminal sends a scheduling request on the PUCCH-SR resource at time t2.
  • first time and t1 involved in the embodiments of the present disclosure are sometimes used interchangeably, but those skilled in the art should understand the consistency of their meanings, and the first time/t1 involved in each embodiment has the same meaning .
  • Fig. 4 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 4, the BFR method is used in a terminal and includes the following steps.
  • step S31 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S32 in response to monitoring that there is a first TRP that has a beam failure among the multiple TRPs, and before the second time, it is detected that there is a second TRP that has a beam failure among the multiple TRPs, triggering a random access-based BFR.
  • the trigger random access beam failure recovery in response to detecting that there is a second TRP in which beam failure occurs among multiple TRPs after the first time and before the second time, it is determined that the trigger random access beam failure recovery is satisfied trigger conditions.
  • the first time is the time when beam failure of the first TRP is detected
  • the second time is the time (t2) when the scheduling request is sent on the physical uplink control channel resource.
  • the terminal detects that beam failure also occurs in the second TRP before t2, and then triggers BFR based on random access.
  • the terminal may wait for a certain period of time before receiving downlink control information (DCI) for scheduling the PUSCH.
  • DCI downlink control information
  • the DCI used to schedule the PUSCH is referred to as the first DCI
  • the time for receiving the first DCI is referred to as the third time (t3).
  • Fig. 5 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 5, the BFR method is used in a terminal and includes the following steps.
  • step S41 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S42 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, and before the third time, it is detected that there is a second TRP with beam failure among the multiple TRPs, triggering a random access-based BFR.
  • the trigger in response to detecting that there is a second TRP with beam failure among the multiple TRPs at the second time, or after the second time and before the third time, it is determined that the trigger is satisfied. Trigger condition for random access beam failure recovery.
  • the second time is the time when the scheduling request is sent on the physical uplink control channel resource
  • the third time is the time when the first downlink control information for scheduling the physical uplink shared channel is received.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t2 but before t3, the terminal triggers BFR based on random access.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t1 but before t3, it triggers BFR based on random access.
  • Fig. 6 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 6, the BFR method is used in a terminal and includes the following steps.
  • step S51 in response to the terminal being configured with multiple TRPs, beam failure monitoring for multiple TRPs is performed.
  • step S52 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, and before the third time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and after the second time Within the first period of time, if any downlink control information is not received, BFR based on random access is triggered.
  • first period T1 a certain period of time
  • the trigger condition for triggering random access-based BFR is satisfied if the terminal does not receive the first DCI signaling after t2+T1, it triggers BFR based on random access.
  • the terminal does not receive the DCI (hereinafter referred to as the second DCI) for determining that the network device has received the MAC CE information after the time t2+T1, then trigger BFR based on random access.
  • the terminal receives the first DCI for scheduling the PUSCH at the third time, and may wait for a certain period of time before sending the MAC CE information related to the TRP with beam failure on the PUSCH.
  • the time of sending the MAC CE information related to the TRP with beam failure on the PUSCH is called the fourth time (t4).
  • Fig. 7 is a flowchart of a BFR method according to an exemplary embodiment. As shown in Fig. 7, the BFR method is used in a terminal and includes the following steps.
  • step S61 in response to the terminal being configured with multiple TRPs, beam failure monitoring for multiple TRPs is performed.
  • step S62 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, before the fourth time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and triggering BFR based on random access .
  • the fourth time is the time when the MAC CE information related to the TRP with beam failure occurs on the PUSCH.
  • the PUSCH used to send the MAC CE information related to the TRP with beam failure can be scheduled by the first DCI signaling, or can be configured grant Type 1 or Type 2 (configure grant Type 1 or Type 2) The push.
  • the PUSCH used to send the MAC CE information related to the TRP in which beam failure occurs is called the first PUSCH.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t3 but before t4, the terminal triggers BFR based on random access.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t1 but before t4, the terminal triggers BFR based on random access.
  • the beam corresponding to the first PUSCH is a beam with a beam failure
  • Fig. 8 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 8, the BFR method is used in a terminal and includes the following steps.
  • step S71 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S72 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, before the fourth time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and the beam corresponding to the first PUSCH is For beams where beam failure occurs, random access-based BFR is triggered.
  • the beam corresponding to the first PUSCH fails to occur If the beam fails, it may also be determined that the triggering condition for triggering the random access BFR is met.
  • the trigger condition of random access BFR when it is monitored that there is a second TRP with beam failure among the multiple TRPs, if the beam corresponding to the first PUSCH is a beam with beam failure, it can also be determined that the trigger is satisfied.
  • the trigger condition of random access BFR when it is monitored that there is a second TRP with beam failure among the multiple TRPs, if the beam corresponding to the first PUSCH is a beam with beam failure, it can also be determined that the trigger is satisfied.
  • the trigger condition of random access BFR before the fourth time, when it is monitored that there is a second TRP with beam failure among the multiple TRPs, if the beam corresponding to the first PUSCH is a beam with beam failure.
  • the terminal sends the MAC CE information related to the TRP with beam failure on the PUSCH at the fourth time, and receives the second DCI signaling after waiting for a certain period of time.
  • the time at which the second DCI is received is referred to as a fifth time (t5).
  • the fifth time is the time when the second DCI is received, and the second DCI is used to determine that the network device has received the MAC CE information.
  • Fig. 9 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 9, the BFR method is used in a terminal and includes the following steps.
  • step S81 in response to the terminal being configured with multiple TRPs, beam failure monitoring for multiple TRPs is performed.
  • step S82 in response to monitoring that there is a first TRP that has a beam failure among the multiple TRPs, before the fifth time, it is detected that there is a second TRP that has a beam failure among the multiple TRPs, and triggering BFR based on random access .
  • the fourth time is the time when the MAC CE information related to the TRP with beam failure occurs on the PUSCH.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t4 but before t5, the terminal triggers BFR based on random access.
  • the fifth time is the time when the second DCI is received, and the second DCI is used to determine that the network device has received the MAC CE information.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t1 but before t5, the terminal triggers BFR based on random access.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP before the fifth time, if the terminal fails to After receiving the second DCI signaling, it is determined that the triggering condition for triggering the BFR of the random access is met. That is, after time t4+T2, if the second DCI signaling is not received, BFR based on random access is triggered.
  • the second DCI signaling is used to determine that the network device has received the MAC CE information, and the terminal will update the beam after receiving the second DCI signaling for a certain period of time.
  • the second DCI may also be used to schedule the PUSCH.
  • the PUSCH scheduled by the second DCI is called the second PUSCH.
  • the Hybrid Automatic Repeat reQuest (HARQ) identifier (Identity, ID) of the second PUSCH is the same as the HARQ ID of the first PUSCH, but the new data indicator (new data indicator, NDI) changes (toggle) .
  • the first PUSCH is scheduled by the first DCI, or is a configure grant Type 1 or Type 2 PUSCH.
  • updating the beam includes updating at least one of the following content: quasi co-location (quasi co-location, QCL) Type-D parameter, uplink transmission spatial filter (UL TX spatial filter), spatial relationship information (spatialrelationinfo), transmission configuration indication State (transmission configuration indication state, TCI state), downlink TCI state (DL TCI state), uplink TCI state (UL TCI state).
  • quasi co-location quasi co-location
  • QCL Type-D parameter
  • uplink transmission spatial filter UL TX spatial filter
  • spatial relationship information spatial relationship information
  • transmission configuration indication State transmission configuration indication state
  • TCI state transmission configuration indication state
  • DL TCI state downlink TCI state
  • uplink TCI state UL TCI state
  • Fig. 10 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 10, the BFR method is used in a terminal and includes the following steps.
  • step S91 in response to the terminal being configured with multiple TRPs, beam failure monitoring for multiple TRPs is performed.
  • step S92 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, before the fifth time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and after the fourth time Within the second time period, if no DCI is received, the BFR based on random access is triggered.
  • the fourth time or after the fourth time and before the fifth time, it is monitored that there is a second TRP with beam failure among the multiple TRPs, and within the second time period after the fourth time , did not receive any DCI.
  • the trigger is based on random access The BFR.
  • the terminal detects that beam failure also occurs in the second TRP at or after t1 but before t5, and if the terminal does not receive the second DCI signaling after t4+T2, the trigger is based on random access The BFR.
  • the terminal may wait for a certain period of time and then update the beam of the TRP whose beam failed, that is, update the beam of the first TRP.
  • the time for updating the beam of the first TRP is referred to as the sixth time.
  • sixth time and t6 involved in the embodiments of the present disclosure are sometimes used interchangeably, but those skilled in the art should understand the consistency of their meanings, and the sixth time/t6 involved in each embodiment has the same meaning.
  • the sixth time in response to detecting that there is a second TRP in which a beam failure occurs among the multiple TRPs before the sixth time, it is determined that a trigger condition for triggering the random access BFR is met.
  • the fifth time is the time when the second DCI is received
  • the second DCI is used to determine that the network device has received the MAC CE information
  • the sixth time is the time when the beam of the first TRP is updated.
  • Fig. 11 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 11, the BFR method is used in a terminal and includes the following steps.
  • step S101 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S102 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, before the sixth time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and triggering BFR based on random access .
  • the fifth time is the time when the second DCI is received
  • the second DCI is used to determine that the network device has received the MAC CE information
  • the sixth time is the time when the beam of the first TRP is updated.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t5 but before t6, the terminal triggers BFR based on random access.
  • the terminal when the terminal detects that beam failure also occurs in the second TRP at or after t1 but before t6, it triggers BFR based on random access.
  • the present disclosure it is possible to continuously monitor the presence of a TRP with beam failure among the multiple TRPs, and trigger the BFR at the TRP level in response to detecting that there is a second TRP with beam failure among the multiple TRPs after the sixth time.
  • Fig. 12 is a flow chart showing a BFR method according to an exemplary embodiment. As shown in Fig. 12, the BFR method is used in a terminal and includes the following steps.
  • step S111 in response to the terminal being configured with multiple TRPs, beam failure monitoring of multiple TRPs is performed.
  • step S112 in response to monitoring that there is a first TRP with beam failure among the multiple TRPs, before the sixth time, it is detected that there is a second TRP with beam failure among the multiple TRPs, and triggering BFR based on random access .
  • step S113 in response to detecting that there is a second TRP with beam failure among the plurality of TRPs after the sixth time, a BFR at the TRP level is triggered.
  • triggering TRP-level BFR can be understood as triggering BFR based on PUCCH-SR and/or PUSCH MAC CE.
  • the terminal is configured with two TRPs, for example, the terminal is configured with the first TRP and the second TRP.
  • BFR based on TRP level can be understood as the following execution process:
  • the terminal monitors the respective reference signal sets used for beam failure detection of the first TRP and/or the second TRP, and when it detects that beam failure occurs in the first TRP at time t1, the terminal waits for the PUCCH-SR at the latest time t2 .
  • the terminal waits for the PUCCH-SR at the latest time t2 .
  • the traditional defined method can be reused, that is, for each RS in the reference signal set, the corresponding RS is detected N times The radiolinkquality is below a certain threshold.
  • the terminal waits for the first DCI signaling for scheduling the first PUSCH at time t3.
  • the terminal receives the first DCI for scheduling the first PUSCH at time t3, and waits until time t4 to send the MAC CE information related to the TRP with beam failure on the PUSCH.
  • the terminal sends MAC CE information related to the TRP with beam failure on the first PUSCH at time t4, and waits for the second DCI signaling at time t5, which is used to determine that the base station has received the MAC CE information, the terminal will update the beam after receiving the T0 time of the second DCI signaling.
  • the second DCI signaling can also be used to schedule the second PUSCH, and the HARQ ID of the second PUSCH is the same as the HARQ ID of the first PUSCH, but the NDI field value is toggled.
  • the first PUSCH is scheduled by the first DCI, or is a configure grant Type 1 or Type 2 PUSCH.
  • updating the beam includes updating at least one of the following: quasi co-location QCL Type-D parameter, UL TX spatial filter, spatialrelationinfo, TCI state, DL TCI state, UL TCI state
  • the terminal receives the second DCI signaling at time t5. Wait for time t6 to update the beam of the TRP whose beam failed.
  • TRP-level BFR when triggering BFR for random access, TRP-level BFR may be triggered, or TRP-level BFR may not be triggered. That is, when the BFR based on random access is triggered, whether the TRP specific BFR is triggered will not affect the BFR based on random access.
  • the triggering conditions for triggering random access-based BFR may include at least one of the following situations, and trigger random access-based BFR:
  • the terminal detects that beam failure also occurs in the second TRP before t2, and then triggers BFR based on random access.
  • the terminal detects that beam failure also occurs in the second TRP before t3, and then triggers BFR based on random access.
  • the terminal At or after t2, but before t3, the terminal detects that the second TRP also has a beam failure. After t2+T1, if the terminal does not receive the first DCI signaling, it triggers BFR based on random access .
  • the terminal detects that beam failure also occurs in the second TRP before t4, and then triggers BFR based on random access.
  • the terminal detects that beam failure also occurs in the second TRP at or after t3, but before t4, and at the same time, the beam of the first PUSCH is a failed beam, and then triggers BFR based on random access.
  • the terminal detects that beam failure also occurs in the second TRP before t5, and then triggers BFR based on random access.
  • the terminal At or after t4, but before t5, the terminal detects that beam failure also occurs in the second TRP. After t4+T2, if the terminal does not receive the second DCI signaling, it triggers BFR based on random access .
  • the terminal detects that beam failure also occurs in the second TRP before t6, and then triggers BFR based on random access.
  • the terminal After t6, the terminal detects that the beam failure of the second TRP occurs again, and only triggers the TRP specific BFR.
  • the BFR method provided by the embodiments of the present disclosure determines the conditions for triggering cell specific in the Multi-TRP PDCCH scenario.
  • the conditions for triggering cell specific are determined to ensure that the beam The timeliness and effectiveness of failure recovery.
  • an embodiment of the present disclosure further provides a BFR device.
  • the BFR device provided in the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 13 is a block diagram of a BFR device according to an exemplary embodiment.
  • the BFR device 100 includes a monitoring unit 101 and a processing unit 102 .
  • the monitoring unit 101 is configured to monitor the beam failure of multiple TRPs when the terminal is configured with multiple TRPs; In the case of a TRP, BFR based on random access is triggered.
  • the processing unit 102 is further configured to: before triggering the random access-based BFR, determine that a trigger condition for triggering the random access BFR is met.
  • the processing unit 102 determines that the trigger condition for triggering the random access BFR is met; the first time is The time when beam failure occurs in the first TRP is monitored, and the second time is the time when the scheduling request is sent on the PUCCH resource.
  • the processing unit 102 determines that the trigger condition for triggering the random access BFR is met; the third time is The time at which the first DCI for scheduling the PUSCH is received.
  • the processing unit 102 determines that the trigger condition for triggering random access BFR is met, and the second time is when the scheduled time is sent on the PUCCH resource. time of request.
  • the processing unit 102 determines that the trigger condition for triggering the random access BFR is met; the fourth time is The time to send the MAC CE information related to the TRP with beam failure on the first PUSCH.
  • the processing unit 102 determines that a trigger condition for triggering random access BFR is met.
  • the processing unit 102 determines that the trigger condition for triggering the random access BFR is met; the fifth time is When the second DCI is received, the second DCI is used to determine that the network device has received the MAC CE information.
  • the second DCI is used to schedule the second PUSCH.
  • the hybrid automatic repeat request identifier of the second PUSCH scheduled by the second DCI is the same as the hybrid automatic repeat request identifier of the first PUSCH, wherein the first PUSCH is scheduled by the first DCI, or configure grant Type 1 or Type 2 PUSCH; and/or the new data indication of the second PUSCH scheduled by the second DCI changes.
  • the processing unit 102 determines that the trigger condition for triggering the random access BFR is met, and the fourth time is to send the DCI on the first PUSCH The time of the media access control control element MAC CE information related to the TRP where the beam failure occurs.
  • the sixth time is to update the first TRP beam time.
  • the processing unit 102 in response to the monitoring unit 101 detecting again that there is a second TRP in which beam failure occurs among the multiple TRPs after the sixth time, the processing unit 102 triggers a BFR at the TRP level.
  • triggering BFR at the TRP level includes: triggering BFR based on PUCCH-SR and/or PUSCH MAC CE.
  • the processing unit 102 is further configured to trigger a TRP-level BFR, or not trigger a TRP-level BFR.
  • the terminal is configured with multiple TRPs, including: the terminal is configured with multiple reference signal resource sets for beam failure monitoring, and/or the terminal is configured with multiple control resource pool index values.
  • Fig. 14 is a block diagram of a device 200 for BFR according to an exemplary embodiment.
  • the apparatus 200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 200 may include one or more of the following components: processing component 202, memory 204, power component 206, multimedia component 208, audio component 210, input/output (I/O) interface 212, sensor component 214, and communication component 216 .
  • the processing component 202 generally controls the overall operations of the device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 202 may include one or more processors 220 to execute instructions to complete all or part of the steps of the above method.
  • processing component 202 may include one or more modules that facilitate interaction between processing component 202 and other components.
  • processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202 .
  • the memory 204 is configured to store various types of data to support operations at the device 200 . Examples of such data include instructions for any application or method operating on device 200, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 204 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power component 206 provides power to various components of the device 200 .
  • Power components 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 200 .
  • the multimedia component 208 includes a screen that provides an output interface between the device 200 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action.
  • the multimedia component 208 includes a front camera and/or a rear camera. When the device 200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 210 is configured to output and/or input audio signals.
  • the audio component 210 includes a microphone (MIC), which is configured to receive external audio signals when the device 200 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 204 or sent via communication component 216 .
  • the audio component 210 also includes a speaker for outputting audio signals.
  • the I/O interface 212 provides an interface between the processing component 202 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 214 includes one or more sensors for providing various aspects of status assessment for device 200 .
  • the sensor component 214 can detect the open/closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, and the sensor component 214 can also detect a change in the position of the device 200 or a component of the device 200 , the presence or absence of user contact with the device 200 , the device 200 orientation or acceleration/deceleration and the temperature change of the device 200 .
  • the sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 214 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 216 is configured to facilitate wired or wireless communication between the apparatus 200 and other devices.
  • the device 200 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • apparatus 200 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • non-transitory computer-readable storage medium including instructions, such as the memory 204 including instructions, which can be executed by the processor 220 of the device 200 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • “plurality” in the present disclosure refers to two or more, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include the plural unless the context clearly dictates otherwise.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be called second information, and similarly, second information may also be called first information.

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Abstract

本公开是关于一种波束失败恢复方法、装置及存储介质。波束失败恢复方法，应用于终端，所述方法包括：响应于所述终端被配置多个TRP，进行所述多个TRP的波束失败监测；响应于监测到所述多个TRP中存在发生波束失败的第一TRP，触发基于随机接入的波束失败恢复。通过本公开，实现在多个TRP场景下，及时进行基于随机接入的波束失败恢复，保证波束失败恢复的及时性和有效性。

Description

波束失败恢复方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及波束失败恢复方法、装置及存储介质。
背景技术
在新无线技术(New Radio，NR)中，例如通信频段在frequency range 2时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。
相关技术中，网络设备配置有多个发送接收点(transmission and reception point，TRP)。当网络设备有多个TRP时，网络设备可以使用多个TRP为终端提供服务，例如使用多个TRP向终端发送物理下行控制信道(physical downlink control channel，PDCCH)。网络设备使用TRP向终端发送PDCCH，终端检测用于失败检测的参考信号资源。当终端检测到用于失败检测的参考信号的无线链路值低于阈值时，终端需要向网络设备发起波束失败恢复(beam failure recovery，BFR)请求，进行BFR。
相关技术中，定义了小区级别的BFR。例如，定义了(Special cell，SpCell)的BFR。其中，Special cell包括主小区(Primary cell，Pcell)和主辅小区(Primary secondary cell，PScell)。SpCell的BFR机制为随机接入的BFR机制，终端在检测到SpCell发生波束失败时，发起随机接入过程来请求波束恢复。再例如定义了辅小区(secondary cell，SCell)级别的BFR，其机制为物理上行控制信道(physical uplink control channel，PUCCH)-调度请求(scheduling request，SR)机制，和/或物理上行共享信道(physical uplink share channel，PUSCH)-媒体接入控制(Medium Access Control，MAC)控制单元(Control Element，CE)机制，即终端在检测到Scell发生波束失败时，在PUSCH资源上发送MAC CE信息来指示波束失败恢复相关信息。然而，PUSCH的资源可以是专门用于BFR的PUCCH-SR资源上发送scheduling request请求的，也可以是其它PUSCH资源。
相关技术中，提出了TRP级别的BFR(TRP specific的BFR)，即当终端被配置了Multi-TRP PDCCH传输时，当某个TRP发生波束失败时，终端就可以发送波束失败恢复请求，告知网络设备存在TRP发生了波束失败并请求BFR。而TRP specific的BFR目前已经同意使用基于SCell的PUCCH-SR和/或PUSCH MAC CE机制来实现波束失败恢复请求。但存在一个问题，针对SpCell，若多个TRP都发生了波束失败，那么是否该触发基于随机接入的波束失败恢复请求，以及如何触发，是需要解决的问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种波束失败恢复方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种波束失败恢复方法，应用于终端，所述方法包括：
响应于所述终端被配置多个TRP，进行所述多个TRP的波束失败监测；响应于监测到所述多个TRP中存在发生波束失败的第一TRP，触发基于随机接入的波束失败恢复。
一种实施方式中，触发基于随机接入的波束失败恢复之前，所述方法还包括：确定满足触发随机接入波束失败恢复的触发条件。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，包括：
响应于在第一时间之后且在第二时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第一时间为监测到所述第一TRP发生波束失败的时间，所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，包括：
响应于在第三时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第三时间为接收到用于调度物理上行共享信道的第一下行控制信息的时间。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，还包括：
响应于在第二时间之后的第一时长内，未接收到任一下行控制信息，确定满足触发随机接入波束失败恢复的触发条件，所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，包括：
响应于在第四时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第四时间为在第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，还包括：
响应于所述第一物理上行共享信道对应波束为发生波束失败的波束，确定满足触发随机接入波束失败恢复的触发条件；
其中，所述第一物理上行共享信道为第一下行控制信息调度，或为配置授权类型1或类型2的物理上行共享信道。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，包括：
响应于在第五时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第五时间为接收到第二下行控制信息 的时间，所述第二下行控制信息用于确定网络设备已经收到所述MAC CE信息。
一种实施方式中，所述第二下行控制信息用于调度第二物理上行共享信道；
所述第二下行控制信息调度的第二物理上行共享信道的混合自动重传请求标识，与第一物理上行共享信道的混合自动重传请求标识相同，其中，所述第一物理上行共享信道用于发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的物理上行共享信道；和/或所述第二下行控制信息调度的第二物理上行共享信道的新数据指示发生变化。
一种实施方式中，确定满足触发进行随机接入波束失败恢复请求的触发条件，还包括：
响应于在第四时间之后的第二时长内，未接收到任一下行控制信息，确定满足触发随机接入波束失败恢复的触发条件，所述第四时间为在所述第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
一种实施方式中，确定满足触发随机接入波束失败恢复的触发条件，包括：
响应于在第六时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第六时间为更新所述第一TRP的波束的时间。
一种实施方式中，所述方法还包括：响应于在所述第六时间之后，再次监测到所述多个TRP中存在发生波束失败的第二TRP，触发TRP级别的波束失败恢复。
一种实施方式中，所述触发TRP级别的波束失败恢复，包括：
触发基于物理上行控制信道调度请求PUCCH-SR和/或物理上行共享信道媒体接入控制控制单元PUSCH MAC CE进行波束失败恢复。
一种实施方式中，所述方法还包括：触发TRP级别的波束失败恢复，或者不触发TRP级别的波束失败恢复。
一种实施方式中，所述终端被配置多个TRP，包括：所述终端被配置了多个用于波束失败监测的参考信号资源集合，和/或，所述终端被配置了多个控制资源池索引值。
根据本公开实施例第二方面，提供一种波束失败恢复装置，包括：
监测单元，被配置为在终端被配置多个TRP的情况下，进行多个TRP的波束失败监测；处理单元，被配置为在所述监测单元监测到所述多个TRP中存在发生波束失败的第一TRP的情况下，触发基于随机接入的波束失败恢复。
一种实施方式中，所述处理单元还被配置为：在触发基于随机接入的波束失败恢复之前，确定满足触发随机接入波束失败恢复的触发条件。
一种实施方式中，响应于在第二时间之前，监测单元监测到所述多个TRP中存在发生 波束失败的第二TRP，处理单元确定满足触发随机接入波束失败恢复的触发条件；所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
一种实施方式中，响应于在第三时间之前，监测单元监测到所述多个TRP中存在发生波束失败的第二TRP，处理单元确定满足触发随机接入波束失败恢复的触发条件；所述第三时间为接收到用于调度物理上行共享信道的第一下行控制信息的时间。
一种实施方式中，响应于在第二时间之后的第一时长内，未接收到任一下行控制信息，处理单元确定满足触发随机接入波束失败恢复的触发条件，所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
一种实施方式中，响应于在第四时间之前，监测单元监测到所述多个TRP中存在发生波束失败的第二TRP，处理单元确定满足触发随机接入波束失败恢复的触发条件；所述第四时间为在第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
一种实施方式中，响应所述第一物理上行共享信道对应波束为发生波束失败的波束，处理单元确定满足触发随机接入波束失败恢复的触发条件；
其中，所述第一物理上行共享信道为第一下行控制信息调度，或为配置授权类型1或类型2的物理上行共享信道。
一种实施方式中，响应于在第五时间之前，监测单元监测到所述多个TRP中存在发生波束失败的第二TRP，处理单元确定满足触发随机接入波束失败恢复的触发条件；所述第五时间为接收到第二下行控制信息的时间，所述第二下行控制信息用于确定网络设备已经收到所述MAC CE信息。
一种实施方式中，所述第二下行控制信息用于调度第二物理上行共享信道；
所述第二下行控制信息调度的第二物理上行共享信道的混合自动重传请求标识，与第一物理上行共享信道的混合自动重传请求标识相同，其中，所述第一物理上行共享信道用于发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的物理上行共享信道；和/或所述第二下行控制信息调度的第二物理上行共享信道的新数据指示发生变化。
一种实施方式中，响应于在第四时间之后的第二时长内，未接收到任一下行控制信息，处理单元确定满足触发随机接入波束失败恢复的触发条件，所述第四时间为在所述第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
一种实施方式中，响应于在第六时间之前，监测单元监测到所述多个TRP中存在发生 波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；所述第六时间为更新所述第一TRP的波束的时间。
一种实施方式中，响应于在所述第六时间之后，监测单元再次监测到所述多个TRP中存在发生波束失败的第二TRP，处理单元触发TRP级别的波束失败恢复。
一种实施方式中，所述触发TRP级别的波束失败恢复，包括：触发基于物理上行控制信道调度请求PUCCH-SR和/或物理上行共享信道媒体接入控制控制单元PUSCH MAC CE进行波束失败恢复。
一种实施方式中，所述处理单元还用于触发TRP级别的波束失败恢复，或者不触发TRP级别的波束失败恢复。
一种实施方式中，所述终端被配置多个TRP，包括：所述终端被配置了多个用于波束失败监测的参考信号资源集合，和/或，所述终端被配置了多个控制资源池索引值。
根据本公开实施例第三方面，提供一种波束失败恢复装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一种实施方式中所述的波束失败恢复方法。
根据本公开实施例第四方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行第一方面或者第一方面任意一种实施方式中所述的波束失败恢复方法。
本公开的实施例提供的技术方案可以包括以下有益效果：在终端被配置多个TRP时，进行多个TRP的波束失败监测。在监测到多个TRP中存在发生波束失败的TRP的情况下，触发基于随机接入的波束失败恢复，实现在多个TRP场景下，及时进行基于随机接入的波束失败恢复，保证波束失败恢复的及时性和有效性。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信系统示意图。
图2是根据一示例性实施例示出的一种BFR方法的流程图。
图3是根据一示例性实施例示出的一种BFR方法的流程图。
图4是根据一示例性实施例示出的一种BFR方法的流程图。
图5是根据一示例性实施例示出的一种BFR方法的流程图。
图6是根据一示例性实施例示出的一种BFR方法的流程图。
图7是根据一示例性实施例示出的一种BFR方法的流程图。
图8是根据一示例性实施例示出的一种BFR方法的流程图。
图9是根据一示例性实施例示出的一种BFR方法的流程图。
图10是根据一示例性实施例示出的一种BFR方法的流程图。
图11是根据一示例性实施例示出的一种BFR方法的流程图。
图12是根据一示例性实施例示出的一种BFR方法的流程图。
图13是根据一示例性实施例示出的一种BFR装置的框图。
图14是根据一示例性实施例示出的一种用于BFR的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的波束失败恢复方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端通过无线资源与网络设备相连接，并进行数据的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数目和终端数目不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，eNB)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者传输接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
本公开中网络设备与终端之间基于波束进行数据传输。网络设备与终端基于波束进行数据传输时，网络设备可以使用TRP为终端提供服务。例如，网络设备可以使用TRP为终端发送PDCCH。其中，当终端监测到用于失败检测的参考信号资源的无线链路质量低于阈值时，终端会进行BFR。而用于失败检测的参考信号资源可以是基站显示配置的，若基站没有显示配置，则为用于发送PDCCH的控制资源集合(Control Resource set，CORESET)对应的传输状态指示(Transmission state indication，TCI)state中用于QCL type D的参考信号资源。其中，终端进行BFR，也称为是终端进行Link recovery。
相关技术中，终端进行BFR的机制包括cell specific BFR。cell specific BFR包括随机接入的BFR机制(Spcell specific BFR)、基于PUCCH-SR和/或PUSCH MAC CE的BFR机制(Scell specific BFR)。终端进行BFR的机制还包括TRP级别的BFR机制(TRP specific BFR)。其中，基于随机接入的BFR机制，包括contention based的随机接入方法(CBRA)和contention free的随机接入方法(CFRA)。在Spcell specific BFR即随机接入的BFR机制下，终端发起随机接入过程请求波束恢复。基于Scell specific BFR即PUCCH-SR和/或PUSCH MAC CE的BFR机制下，终端基于PUCCH-SR和/或PUSCH MAC CE机制进行波束失败恢复。其中，终端在检测到辅小区发生波束失败时，在PUSCH资源上发送MAC CE信息来指示波束失败恢复相关信息，而PUSCH资源可以是专门用于BFR的PUCCH-SR 上发送scheduling request获得的，也可以是其它的PUSCH资源。基于TRP级别的BFR机制下，会复用基于Scell specific BFR。
相关技术中，终端进行波束失败监测时，通常监测用于TRP波束失败检测的参考信号(reference signal，RS)。当监测到N次对应的RS的无线链路质量(radio link quality)低于阈值时，确定监测到该RS失败；当所有用于该TRP失败检测的RS都失败时，确定监测到该TRP发生波束失败。相关技术中，终端与网络设备间存在Multi-TRP PDCCH场景。在Multi-TRP PDCCH场景中，终端在同一小区既配置了随机接入的BFR机制，也配置了TRP级别的BFR机制。由于多个TRP会对应多个用于失败检测的参考信号集合，同一小区会被配置多个用于失败检测的参考信号集合，其中多个用于失败检测的参考信号集合中的每个参考信号集合可以是基站显示配置的，若基站没有显示配置则终端可以基于CORESET的TCI state中QCL Type D的参考信号确定。在多个TRP中存在两个或两个以上的TRP发生波束失败的情况下，是否触发小区级别的BFR，进行随机接入的BFR，相关技术中并未给出方案。
本公开实施例提供一种BFR方法，在监测到多个TRP中存在发生波束失败的TRP情况下，触发基于随机接入的BFR。
本公开实施例中，为描述方便将终端被配置的多个TRP中发生波束失败的至少两个TRP中的一个TRP称为第一TRP，另一个称为第二TRP。
图2是根据一示例性实施例示出的一种BFR方法的流程图，如图2所示，BFR方法用于终端中，该终端在同一小区上配置了随机接入的BFR机制，以及TRP级别的BFR机制。本公开实施例提供的BFR方法包括以下步骤。
在步骤S11中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S12中，响应于监测到多个TRP中存在发生波束失败的第一TRP，触发基于随机接入的BFR。
本公开实施例中，终端被配置多个TRP，可以理解为是被配置了多个用于波束失败监测的参考信号资源集合，和/或，终端被配置了多个控制资源池索引值(CORESETPoolIndex值)。终端被配置了多个用于波束失败监测的参考信号资源集合，可以理解为终端被显示配置了多个用于失败检测的参考信号资源集合。当终端没有被显示配置用于失败检测的参考信号资源集合时，终端可以基于CORESETPoolIndex或CORESETGroup来确定一个或多个用于失败检测的参考信号资源集合。比如，若终端所有的CORESET对应同样的CORESETPoolIndex或CORESETGroup时，终端根据所有CORESET中的至少一个CORESET的TCI state的QCL Type D的参考信号资源，来确定用于失败检测的参考信号 资源。若终端所有的CORESET对应不同的CORESETPoolIndex或CORESETGroup时，终端根据对应相同CORESETPoolIndex或CORESETGroup所有CORESET中的至少一个CORESET的TCI state的QCL Type D的参考信号资源，来确定与该CORESETPoolIndex或CORESETGroup对应的用于失败检测的参考信号资源。其中，每个CORESETPoolIndex或CORESETGroup对应一个用于失败检测的参考信号资源。
在本公开的所有实施例中，“终端被配置多个TRP”是指，终端被配置与基站的多个TRP进行上下行传输。在一些实施方式中，终端可以根据通信标准确定多个TRP配置；或终端可以根据基站发送的配置参数或配置信令确定多个TRP配置；或终端可以与基站进行协商确定多个TRP，且该多个TRP是基站的多个TRP的子集或是真子集(这样就存在一种可能性，基站可以使得不同UE对应不同的TRP集合，或是一些UE对应于相同的TRP集合而另一些UE对应于不同的TRP集合)。相同的内容，随后不再一一赘述。
本公开实施例中，终端进行多个TRP的波束失败监测，可以是终端监测用于多个TRP中的部分TRP或全部TRP波束失败监测时各自所对应的参考信号集。例如，终端监测用于第一TRP和/或第二TRP波束失败检测的各自的参考信号集。
本公开实施例中，监测到存在发生波束失败的TRP，可以采用传统方法中确定监测到存在发生波束失败的TRP的方法。例如，针对某一TRP，针对用于失败检测的参考信号集内的每个RS，当监测到N次对应的RS的radio link quality低于阈值时，确定监测到该TRP发生波束失败。
本公开实施例中，监测到多个TRP中存在发生波束失败的第一TRP的情况下，可以触发基于随机接入的波束失败恢复，实现在多个TRP场景下，及时进行基于随机接入的波束失败恢复，保证波束失败恢复的及时性和有效性。
本公开实施例提供的BFR方法，终端可以在确定满足触发随机接入BFR的触发条件的情况下，触发基于随机接入的BFR。
图3是根据一示例性实施例示出的一种BFR方法的流程图，如图3所示，BFR方法用于终端中，包括以下步骤。
在步骤S21中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S22中，响应于监测到多个TRP中存在发生波束失败的第一TRP，且满足触发随机接入BFR的触发条件，触发基于随机接入的BFR。
本公开实施例中，触发基于随机接入的BFR所需满足的触发条件可以是在监测到多个TRP中存在发生波束失败的第一TRP之后，基于TRP specific的BFR过程中进行确定。
本公开实施例提供的BFR方法，终端监测到多个TRP中存在发生波束失败的第一TRP 的情况下，可以在等待最近的时间内的物理上行控制信道(Physical Uplink Control Channel，PUCCH)资源上发送调度请求。本公开实施例中为描述方便，将终端监测到多个TRP中存在发生波束失败的第一TRP的时间称为第一时间(t1)，将终端在PUCCH-SR资源上发送scheduling request的时间称为第二时间(t2)。一示例中，终端监测用于第一TRP和/或第二TRP波束失败检测的各自的参考信号集。当在第一时间监测到比如第一TRP发生波束失败时，终端等待最近的t2时间的PUCCH-SR。终端在t2时刻的PUCCH-SR资源上发送scheduling request。
可以理解的是，本公开实施例中涉及的第一时间和t1有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第一时间/t1具有相同的含义。
进一步可以理解的是，本公开实施例中涉及的第二时间和t2有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第二时间/t2具有相同的含义。
图4是根据一示例性实施例示出的一种BFR方法的流程图，如图4所示，BFR方法用于终端中，包括以下步骤。
在步骤S31中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S32中，响应于监测到多个TRP中存在发生波束失败的第一TRP，且在第二时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
一种实施方式中，本公开实施例中，响应于在第一时间之后且在第二时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件。其中，第一时间为监测到所述第一TRP发生波束失败的时间，第二时间为在物理上行控制信道资源上发送调度请求的时间(t2)。
基于上述示例，终端在t2之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
本公开实施例另一种实施方式中，终端在第二时间的PUCCH-SR资源上发送scheduling request后，可以等待一定时间后接收用于调度PUSCH的下行控制信息(Downlink Control Information，DCI)。以下为描述方便，将用于调度PUSCH的DCI称为第一DCI，将接收第一DCI的时间称为第三时间(t3)。
可以理解的是，本公开实施例中涉及的第三时间和t3有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第三时间/t3具有相同的含义。
图5是根据一示例性实施例示出的一种BFR方法的流程图，如图5所示，BFR方法用于终端中，包括以下步骤。
在步骤S41中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S42中，响应于监测到多个TRP中存在发生波束失败的第一TRP，且在第三时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
一种实施方式中，本公开实施例中，响应于在第二时间，或者在第二时间之后且在第三时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件。第二时间为在物理上行控制信道资源上发送调度请求的时间，第三时间为接收到用于调度物理上行共享信道的第一下行控制信息的时间。
基于上述示例，终端在t2时或之后，但是在t3之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
本公开实施例的又一种实施方式中，本公开实施例中，响应于在第三时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件。
基于上述示例，终端在t1时或之后，但是在t3之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
图6是根据一示例性实施例示出的一种BFR方法的流程图，如图6所示，BFR方法用于终端中，包括以下步骤。
在步骤S51中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S52中，响应于监测到多个TRP中存在发生波束失败的第一TRP，且在第三时间之前，监测到多个TRP中存在发生波束失败的第二TRP，并且在第二时间之后的第一时长内，未接收到任一下行控制信息，触发基于随机接入的BFR。
本公开实施例的一种实施方式中，若在第二时间之后的一定时长内(第一时长T1)，未收到任何DCI信令，则可确定满足触发基于随机接入的BFR的触发条件。例如，终端在t2+T1时间后，若未收到第一DCI信令，则触发基于随机接入的BFR。再例如，终端在t2+T1时间后，若未收到用于确定网络设备已经收到MAC CE信息的DCI(以下称为第二DCI)，则触发基于随机接入的BFR。
本公开实施例又一种实施方式中，终端在第三时间接收到用于调度PUSCH的第一DCI，可以等待一定时间之后，在PUSCH上发送与发生波束失败的TRP相关的MAC CE信息。以下为描述方便，将在PUSCH上发送与发生波束失败的TRP相关的MAC CE信息的时间称为第四时间(t4)。
进一步可以理解的是，本公开实施例中涉及的第四时间和t4有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第四时间/t4具有相同的含义。
图7是根据一示例性实施例示出的一种BFR方法的流程图，如图7所示，BFR方法 用于终端中，包括以下步骤。
在步骤S61中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S62中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
其中，第四时间为在PUSCH上发送与发生波束失败的TRP相关的MAC CE信息的时间。
需要说明的是，用于发送与发生波束失败的TRP相关的MAC CE信息的PUSCH可以是第一DCI信令调度的，也可以是配置授权类型1或类型2(configure grant Type 1或Type 2)的PUSCH。为了描述方便，以下各实施例中将用于发送与发生波束失败的TRP相关的MAC CE信息的PUSCH称为第一PUSCH。
一种实施方式中，响应于在第三时间，或者在第三时间之后且在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。
基于上述示例，终端在t3时或之后，但是在t4之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
又一种实施方式中，响应于在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。
基于上述示例，终端在t1时或之后，但是在t4之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
进一步的，本公开实施例中，在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP的情况下，若第一PUSCH对应波束为发生波束失败的波束，则也可以确定满足触发随机接入BFR的触发条件。
图8是根据一示例性实施例示出的一种BFR方法的流程图，如图8所示，BFR方法用于终端中，包括以下步骤。
在步骤S71中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S72中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP，且第一PUSCH对应波束为发生波束失败的波束，触发基于随机接入的BFR。
一种实施方式中，在第三时间，或者在第三时间之后且在第四时间之前，监测到多个TRP中存在发生波束失败的第二TRP的情况下，若第一PUSCH对应波束为发生波束失败的波束，则也可以确定满足触发随机接入BFR的触发条件。
又一种实施方式中，在第四时间之前，监测到多个TRP中存在发生波束失败的第二 TRP的情况下，若第一PUSCH对应波束为发生波束失败的波束，则也可以确定满足触发随机接入BFR的触发条件。
本公开实施例中，终端在第四时间的PUSCH上发送与发生波束失败的TRP相关的MAC CE信息，并等待一定时间后接收第二DCI信令。以下将接收到第二DCI的时间称为第五时间(t5)。第五时间为接收到第二DCI的时间，第二DCI用于确定网络设备已经收到MAC CE信息。
进一步可以理解的是，本公开实施例中涉及的第五时间和t5有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第五时间/t5具有相同的含义。
图9是根据一示例性实施例示出的一种BFR方法的流程图，如图9所示，BFR方法用于终端中，包括以下步骤。
在步骤S81中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S82中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
一种实施方式中，响应于在第四时间，或者在第四时间之后且在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。第四时间为在PUSCH上发送与发生波束失败的TRP相关的MAC CE信息的时间。
基于上述示例，终端在t4时或之后，但是在t5之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
一种实施方式中，响应于在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。第五时间为接收到第二DCI的时间，第二DCI用于确定网络设备已经收到MAC CE信息。
基于上述示例，终端在t1时或之后，但是在t5之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
进一步的，本公开实施例中，终端在第五时间之前监测到第二TRP也发生了波束失败的情况下，若终端在第四时间之后的一定时长(以下称为第二时长T2)内未收到二DCI信令，则确定满足触发随机接入的BFR的触发条件。即，在t4+T2时间后，若未收到第二DCI信令，则触发基于随机接入的BFR。
本公开实施例中，第二DCI信令用于确定网络设备已经收到MAC CE信息，终端在收到第二DCI信令的一定时间后，将更新波束。本公开实施例中第二DCI也可以用于调度PUSCH。以下为描述方便，将第二DCI调度的PUSCH称为第二PUSCH。其中，第二PUSCH的混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)标识(Identity，ID)与 第一PUSCH的HARQ ID相同，但是新数据指示(new data indicator，NDI)发生变化(toggle)。其中，第一PUSCH由第一DCI调度，或为configure grant Type 1或Type 2的PUSCH。
其中，更新波束包括更新以下内容至少之一：准共址(quasi co-location，QCL)Type-D parameter，上行发送空间过滤器(UL TX spatial filter)，空间关系信息(spatialrelationinfo)，传输配置指示状态(transmission configuration indication state，TCI state)，下行TCI state(DL TCI state)，上行TCI state(UL TCI state)。
图10是根据一示例性实施例示出的一种BFR方法的流程图，如图10所示，BFR方法用于终端中，包括以下步骤。
在步骤S91中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S92中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，并且在第四时间之后的第二时长内，未接收到任一DCI，触发基于随机接入的BFR。
一种实施方式中，在第四时间，或者在第四时间之后且在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，并且在第四时间之后的第二时长内，未接收到任一DCI。
基于上述示例，终端在t4时或之后，但是在t5之前监测到第二TRP也发生了波束失败，终端在t4+T2时间后，若未收到第二DCI信令，则触发基于随机接入的BFR。
又一种实施方式中，在第五时间之前，监测到多个TRP中存在发生波束失败的第二TRP，并且在第四时间之后的第二时长内，未接收到任一DCI。
基于上述示例，终端在t1时或之后，但是在t5之前监测到第二TRP也发生了波束失败，终端在t4+T2时间后，若未收到第二DCI信令，则触发基于随机接入的BFR。
本公开实施例中，终端在第五时间接收到第二DCI之后，可以等待一定时长之后更新发生波束失败了的TRP的波束，即更新第一TRP的波束。本公开实施例中将更新第一TRP的波束的时间称为第六时间。
进一步可以理解的是，本公开实施例中涉及的第六时间和t6有时交替使用，但本领域技术人员应理解其含义的一致性，并且各实施例中涉及的第六时间/t6具有相同的含义。
一种实施方式中，响应于在第六时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。第五时间为接收到第二DCI的时间，第二DCI用于确定网络设备已经收到MAC CE信息，第六时间为更新第一TRP的波束的时间。
图11是根据一示例性实施例示出的一种BFR方法的流程图，如图11所示，BFR方法用于终端中，包括以下步骤。
在步骤S101中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S102中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第六时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
一种实施方式中，响应于在第五时间，或者在第五时间之后且在第六时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。第五时间为接收到第二DCI的时间，第二DCI用于确定网络设备已经收到MAC CE信息，第六时间为更新第一TRP的波束的时间。
基于上述示例，终端在t5时或之后，但是在t6之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
又一种实施方式中，响应于在第六时间之前，监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件。
基于上述示例，终端在t1时或之后，但是在t6之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
本公开实施例中，可以持续监测多个TRP中存在发生波束失败的TRP，响应于在第六时间之后，再次监测到多个TRP中存在发生波束失败的第二TRP，触发TRP级别的BFR。
图12是根据一示例性实施例示出的一种BFR方法的流程图，如图12所示，BFR方法用于终端中，包括以下步骤。
在步骤S111中，响应于终端被配置多个TRP，进行多个TRP的波束失败监测。
在步骤S112中，响应于监测到多个TRP中存在发生波束失败的第一TRP，在第六时间之前，监测到多个TRP中存在发生波束失败的第二TRP，触发基于随机接入的BFR。
在步骤S113中，响应于在第六时间之后，再次监测到多个TRP中存在发生波束失败的第二TRP，触发TRP级别的BFR。
本公开实施例中，触发TRP级别的BFR，可以理解为是触发基于PUCCH-SR和/或PUSCH MAC CE进行BFR。
本公开一示例中，以终端被配置了两个TRP为例进行说明，比如被配置了第一TRP和第二TRP为例进行说明。其中，基于TRP级别的BFR可以理解为是如下执行过程：
a)终端监测用于第一TRP和/或第二TRP波束失败检测的各自的参考信号集，当在t1时间监测到比如第一TRP发生波束失败时，终端等待最近的t2时间的PUCCH-SR。这里是假设在t1之前没有发送其它的PUCCH-SR，或假设如果在t2时间不发送PUCCH-SR 的话，接下来较近的一段时间内没有可用的PUSCH资源。
可以理解的是，本公开实施例中检测到某个TRP发生波束失败，可以复用传统的已经定义好了的方法，即针对参考信号集内的每个RS，监测到N次其对应的RS的radiolinkquality低于某个threshold。
b)终端等待t3时刻的用于调度第一PUSCH的第一DCI信令。
c)终端在t3时刻收到用于调度第一PUSCH的第一DCI，等到t4时刻在PUSCH上发送与发生波束失败的TRP相关的MAC CE信息。
d)终端在t4时刻的第一PUSCH上发送与发生波束失败的TRP相关的MAC CE信息，并等待t5时刻的第二DCI信令，该第二DCI信令用于确定基站已经收到MAC CE信息，终端在收到第二DCI信令的T0时间后，将更新波束。
可以理解的是，第二DCI信令也可以用于调度第二PUSCH，第二PUSCH的HARQ ID与第一PUSCH的HARQ ID相同，但是NDI field value发生toggle。其中，第一PUSCH由第一DCI调度，或为configure grant Type 1或Type 2的PUSCH。
进一步的，更新波束包括更新以下至少之一：quasi co-location QCL Type-D parameter，UL TX spatial filter，spatialrelationinfo，TCI state，DL TCI state，UL TCI state
e)终端在t5时刻收到第二DCI信令。等待t6时刻更新发生波束失败了的TRP的波束。
进一步的，本公开实施例中，在触发进行随机接入的BFR时，可以触发TRP级别的BFR，或者不触发TRP级别的BFR。即，触发基于随机接入的BFR时，TRP specific的BFR是否被触发将不影响基于随机接入的BFR。
基于以上实施例，本公开实施例中提供的触发基于随机接入的BFR的触发条件，可以包括以下至少一种情况，并触发基于随机接入的BFR：
a)终端在t2之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
b)终端在t3之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
c)终端在t2时或之后，但是在t3之前监测到第二TRP也发生了波束失败，终端在t2+T1时间后，若未收到第一DCI信令，则触发基于随机接入的BFR。
d)终端在t4之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
e)终端在t3时或之后，但是在t4之前监测到第二TRP也发生了波束失败，同时第一PUSCH的波束为失败了的波束，则触发基于随机接入的BFR。
f)终端在t5之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
g)终端在t4时或之后，但是在t5之前监测到第二TRP也发生了波束失败，终端在 t4+T2时间后，若未收到第二DCI信令，则触发基于随机接入的BFR。
h)终端在t6之前监测到第二TRP也发生了波束失败，则触发基于随机接入的BFR。
I)终端在t6之后，再次监测到第二TRP发生波束失败，则只触发TRP specific的BFR。
本公开实施例提供的BFR方法，确定Multi-TRP PDCCH场景下的，当同一小区上，对于同时配置了TRP specific BFR和cell specific的BFR的终端来说，确定了触发cell specific的条件，保证波束失败恢复的及时性和有效性。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种BFR装置。
可以理解的是，本公开实施例提供的BFR装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图13是根据一示例性实施例示出的一种BFR装置框图。参照图13，BFR装置100包括监测单元101和处理单元102。
监测单元101，被配置为在终端被配置多个TRP的情况下，进行多个TRP的波束失败监测；处理单元102，被配置为在监测单元101监测到多个TRP中存在发生波束失败的第一TRP的情况下，触发基于随机接入的BFR。
一种实施方式中，处理单元102还被配置为：在触发基于随机接入的BFR之前，确定满足触发随机接入BFR的触发条件。
一种实施方式中，响应于在第二时间之前，监测单元101监测到多个TRP中存在发生波束失败的第二TRP，处理单元102确定满足触发随机接入BFR的触发条件；第一时间为监测到第一TRP发生波束失败的时间，第二时间为在PUCCH资源上发送调度请求的时间。
一种实施方式中，响应于在第三时间之前，监测单元101监测到多个TRP中存在发生波束失败的第二TRP，处理单元102确定满足触发随机接入BFR的触发条件；第三时间为接收到用于调度PUSCH的第一DCI的时间。
一种实施方式中，响应于在第二时间之后的第一时长内，未接收到任一DCI，处理单元102确定满足触发随机接入BFR的触发条件，第二时间为在PUCCH资源上发送调度请求的时间。
一种实施方式中，响应于在第四时间之前，监测单元101监测到多个TRP中存在发生波束失败的第二TRP，处理单元102确定满足触发随机接入BFR的触发条件；第四时间为在第一PUSCH上发送与发生波束失败的TRP相关的MAC CE信息的时间。
一种实施方式中，响应于第一PUSCH对应波束为发生波束失败的波束，处理单元102确定满足触发随机接入BFR的触发条件。
一种实施方式中，响应于在第五时间之前，监测单元101监测到多个TRP中存在发生波束失败的第二TRP，处理单元102确定满足触发随机接入BFR的触发条件；第五时间为接收到第二DCI的时间，第二DCI用于确定网络设备已经收到MAC CE信息。
一种实施方式中，第二DCI用于调度第二PUSCH。
其中，第二DCI调度的第二PUSCH的混合自动重传请求标识，与第一PUSCH的混合自动重传请求标识相同，其中，所述第一PUSCH为第一DCI调度，或为configure grant Type 1或Type 2的PUSCH；和/或第二DCI调度的第二PUSCH的新数据指示发生变化。
一种实施方式中，响应于在第四时间之后的第二时长内，未接收到任一DCI，处理单元102确定满足触发随机接入BFR的触发条件，第四时间为在第一PUSCH上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
一种实施方式中，响应于在第六时间之前，监测单元101监测到多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入BFR的触发条件；第六时间为更新第一TRP的波束的时间。
一种实施方式中，响应于在第六时间之后，监测单元101再次监测到多个TRP中存在发生波束失败的第二TRP，处理单元102触发TRP级别的BFR。
一种实施方式中，触发TRP级别的BFR，包括：触发基于PUCCH-SR和/或PUSCH MAC CE进行BFR。
一种实施方式中，处理单元102还用于触发TRP级别的BFR，或者不触发TRP级别的BFR。
一种实施方式中，终端被配置多个TRP，包括：终端被配置了多个用于波束失败监测的参考信号资源集合，和/或，终端被配置了多个控制资源池索引值。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图14是根据一示例性实施例示出的一种用于BFR的装置200的框图。例如，装置200可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图14，装置200可以包括以下一个或多个组件：处理组件202，存储器204，电力组件206，多媒体组件208，音频组件210，输入/输出(I/O)接口212，传感器组件214，以及通信组件216。
处理组件202通常控制装置200的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件202可以包括一个或多个处理器220来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件202可以包括一个或多个模块，便于处理组件202和其他组件之间的交互。例如，处理组件202可以包括多媒体模块，以方便多媒体组件208和处理组件202之间的交互。
存储器204被配置为存储各种类型的数据以支持在装置200的操作。这些数据的示例包括用于在装置200上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器204可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件206为装置200的各种组件提供电力。电力组件206可以包括电源管理系统，一个或多个电源，及其他与为装置200生成、管理和分配电力相关联的组件。
多媒体组件208包括在所述装置200和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件208包括一个前置摄像头和/或后置摄像头。当装置200处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件210被配置为输出和/或输入音频信号。例如，音频组件210包括一个麦克风(MIC)，当装置200处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器204或经由通信组件216发送。在一些实施例中，音频组件210还包括一个扬声器，用于输出音频信号。
I/O接口212为处理组件202和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件214包括一个或多个传感器，用于为装置200提供各个方面的状态评估。例如，传感器组件214可以检测到装置200的打开/关闭状态，组件的相对定位，例如所述组件为装置200的显示器和小键盘，传感器组件214还可以检测装置200或装置200一个组件的位置改变，用户与装置200接触的存在或不存在，装置200方位或加速/减速和装置200的温度变化。传感器组件214可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件214还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件214还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件216被配置为便于装置200和其他设备之间有线或无线方式的通信。装置200可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件216经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件216还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置200可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器204，上述指令可由装置200的处理器220执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者 重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (19)

  1. 一种波束失败恢复方法，其特征在于，应用于终端，所述方法包括：
    响应于所述终端被配置多个TRP，进行所述多个TRP的波束失败监测；
    响应于监测到所述多个TRP中存在发生波束失败的第一TRP，触发基于随机接入的波束失败恢复。
  2. 根据权利要求1所述的波束失败恢复方法，其特征在于，触发基于随机接入的波束失败恢复之前，所述方法还包括：
    确定满足触发随机接入波束失败恢复的触发条件。
  3. 根据权利要求2所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，包括：
    响应于在第一时间之后且在第二时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；
    所述第一时间为监测到所述第一TRP发生波束失败的时间，所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
  4. 根据权利要求2所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，包括：
    响应于在第三时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；
    所述第三时间为接收到用于调度物理上行共享信道的第一下行控制信息的时间。
  5. 根据权利要求4所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，还包括：
    响应于在第二时间之后的第一时长内，未接收到任一下行控制信息，确定满足触发随机接入波束失败恢复的触发条件，所述第二时间为在物理上行控制信道资源上发送调度请求的时间。
  6. 根据权利要求2所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，包括：
    响应于在第四时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；
    所述第四时间为在第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
  7. 根据权利要求6所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，还包括：
    响应于所述第一物理上行共享信道对应波束为发生波束失败的波束，确定满足触发随机接入波束失败恢复的触发条件；
    其中，所述第一物理上行共享信道为第一下行控制信息调度，或为配置授权的类型1或类型2的物理上行共享信道。
  8. 根据权利要求2所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，包括：
    响应于在第五时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；
    所述第五时间为接收到第二下行控制信息的时间，所述第二下行控制信息用于确定网络设备已经收到MAC CE信息。
  9. 根据权利要求8所述的波束失败恢复方法，其特征在于，所述第二下行控制信息用于调度第二物理上行共享信道；
    所述第二下行控制信息调度的第二物理上行共享信道的混合自动重传请求标识，与第一物理上行共享信道的混合自动重传请求标识相同，其中，所述第一物理上行共享信道用于发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息；和/或
    所述第二下行控制信息调度的第二物理上行共享信道的新数据指示发生变化。
  10. 根据权利要求8所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，还包括：
    响应于在第四时间之后的第二时长内，未接收到任一下行控制信息，确定满足触发随机接入波束失败恢复的触发条件，所述第四时间为在第一物理上行共享信道上发送与发生波束失败的TRP相关的媒体接入控制控制单元MAC CE信息的时间。
  11. 根据权利要求2所述的波束失败恢复方法，其特征在于，确定满足触发随机接入波束失败恢复的触发条件，包括：
    响应于在第六时间之前，监测到所述多个TRP中存在发生波束失败的第二TRP，确定满足触发随机接入波束失败恢复的触发条件；
    所述第六时间为更新所述第一TRP的波束的时间。
  12. 根据权利要求11所述的波束失败恢复方法，其特征在于，所述方法还包括：
    响应于在所述第六时间之后，再次监测到所述多个TRP中存在发生波束失败的第二TRP，触发TRP级别的波束失败恢复。
  13. 根据权利要求12所述的波束失败恢复方法，其特征在于，所述触发TRP级别的波束失败恢复，包括：
    触发基于PUCCH-SR和/或PUSCH MAC CE进行波束失败恢复。
  14. 根据权利要求1至13中任意一项所述的波束失败恢复方法，其特征在于，所述方法还包括：
    触发TRP级别的波束失败恢复，或者不触发TRP级别的波束失败恢复。
  15. 根据权利要求1所述的波束失败恢复方法，其特征在于，所述终端被配置多个TRP，包括：
    所述终端被配置了多个用于波束失败监测的参考信号资源集合，和/或，所述终端被配置了多个控制资源池索引值。
  16. 一种波束失败恢复装置，其特征在于，包括：
    监测单元，被配置为在终端被配置多个TRP的情况下，进行多个TRP的波束失败监测；
    处理单元，被配置为在所述监测单元监测到所述多个TRP中存在发生波束失败的第一TRP的情况下，触发基于随机接入的波束失败恢复。
  17. 根据权利要求16所述的波束失败恢复装置，其特征在于，所述处理单元还被配置为：
    在触发基于随机接入的波束失败恢复之前，确定满足触发随机接入波束失败恢复的触发条件。
  18. 一种波束失败恢复装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至15中任意一项所述的波束失败恢复方法。
  19. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行权利要求1至15中任意一项所述的波束失败恢复方法。
PCT/CN2021/099835 2021-06-11 2021-06-11 波束失败恢复方法、装置及存储介质 WO2022257136A1 (zh)

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