WO2022206845A1 - 波束失败恢复方法，装置及可读存储介质 - Google Patents

波束失败恢复方法，装置及可读存储介质 Download PDF

Info

Publication number
WO2022206845A1
WO2022206845A1 PCT/CN2022/084091 CN2022084091W WO2022206845A1 WO 2022206845 A1 WO2022206845 A1 WO 2022206845A1 CN 2022084091 W CN2022084091 W CN 2022084091W WO 2022206845 A1 WO2022206845 A1 WO 2022206845A1
Authority
WO
WIPO (PCT)
Prior art keywords
access network
beam recovery
cell
network device
terminal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/084091
Other languages
English (en)
French (fr)
Inventor
顾志方
酉春华
娄崇
范强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP22779027.6A priority Critical patent/EP4301023A4/en
Priority to BR112023020148A priority patent/BR112023020148A2/pt
Publication of WO2022206845A1 publication Critical patent/WO2022206845A1/zh
Priority to US18/476,880 priority patent/US20240023184A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • 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

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a beam failure recovery method, device, readable storage medium and system for multiple transmission reception points (mTRP).
  • mTRP multiple transmission reception points
  • Beamforming technology is used to steer each signal on the best path for the end receiver, thereby increasing signal strength, avoiding signal interference, and improving communication quality.
  • beam-based transmission links are easily blocked by obstacles, so the mTRP technology in which the terminal is connected to multiple access network devices is introduced to enhance reliability and expand coverage.
  • the channel will change rapidly, and the communication quality of the originally established transceiver beam pair may drop sharply, resulting in beam failure. Therefore, the research on beam failure recovery technology is very important.
  • Embodiments of the present invention provide a beam failure recovery communication method and device.
  • a terminal communicates with one or more access network devices in a cell, and performs beam recovery on the access network device in advance before beam failure occurs on the access network device. , and combined with the beam conditions of the access network equipment that communicates with the terminal in the cell, select the appropriate access network equipment to send the beam recovery request, thereby reducing the possibility of beam failure of the access network equipment in the network and improving the reliability of the network .
  • a communication method is provided, the execution subject of the method is a terminal, and may also be a component (chip, circuit or others) configured in the terminal, including: the terminal receives a first threshold value and a second threshold The indication information of the value, the terminal performs data communication with one or more access network devices in the cell based on the beam and counts the number of beam failure instances of the one or more access network devices.
  • the beam of the access network device When the beam of the access network device When the number of failure instances is greater than or equal to the second threshold value, the beam of the access network device is in a beam failure state; when the number of beam failure instances of the access network device is greater than the first threshold value and less than When the second threshold value is set, the terminal performs beam recovery on the access network device.
  • the terminal counts the number of beam failure instances of the access network device in the cell where it is located, and when the number of beam failure instances of the access network device is greater than or equal to the first threshold and less than the second threshold, recovery is performed in order to pass.
  • beam recovery is performed in advance, thereby reducing the possibility of beam failure of the access network equipment, further reducing the possibility of beam failure of the access network equipment in the cell, and improving the network reliability. reliability and business continuity.
  • the counting the number of beam failure instances of the one or more access network devices includes: the terminal passing a beam failure instance counter and a beam failure instance counter A detection timer is used to count the number of beam failure instances for each of the one or more access network devices respectively.
  • the terminal can count beams for each access network device that communicates with the terminal The number of failure instances, and then it can be determined whether beam recovery is required for each access network device that communicates with the terminal.
  • the terminal is based on the beam state of the access network device of the first cell
  • Performing beam recovery includes: the terminal performs candidate beam search on the access network device to obtain a beam recovery request medium access control element MAC CE, where the beam recovery request MAC CE indicates beam recovery information of the access network device
  • the terminal determines the target access network equipment that sends the beam recovery request MAC CE according to one of the following contents: the reference signal received power RSRP of the one or more access network equipment, the cell received by the terminal
  • the uplink authorization, or, the number of beam failure instances of the one or more access network devices the terminal sends the beam recovery request MAC CE to the target access network device, and receives the target access network device. After the beam recovery response is obtained, it is judged that the beam recovery is completed.
  • the target access network device of the beam recovery request MAC CE can improve the success rate of beam recovery request MAC CE sending to the network side, thereby improving the success rate of beam recovery.
  • the beam recovery request MAC CE at least includes: a cell beam recovery information element of the cell, the cell
  • the beam restoration information unit is used to indicate the beam restoration information of the corresponding cell
  • the cell beam restoration information unit includes at least one of the following contents: the cell indicates the C domain, which is used to indicate the cell corresponding to the cell beam restoration information unit;
  • the N field indicating the number of beam recovery information elements of the network access equipment is used to indicate the number of access network equipment beam recovery information elements in the cell beam recovery information elements, and the access network equipment beam recovery information elements are used to indicate the access network. Beam recovery information for the device.
  • the cell beam recovery information element includes at least one beam recovery information element of the access network device
  • the The access network equipment beam recovery information unit includes at least one of the following contents: the available candidate beam indicates the AC field, which is used to indicate whether the content in the candidate reference signal index Candidate RS ID field is valid; the candidate reference signal index Candidate RS ID field, with the index of the reference signal indicating the candidate beam; the access network equipment indicates the TI field, which is used to indicate the access network equipment corresponding to the beam recovery information element of the access network equipment; or the beam failure indication BF field is used to indicate the Whether the access network equipment corresponding to the access network equipment beam recovery information unit needs to perform beam recovery.
  • the beam recovery information of the access network equipment that needs to perform beam recovery is indicated, so that the network device can be quickly instructed to perform beam recovery.
  • the method includes: the terminal receives an instruction to deactivate the access network device ; the terminal clears the beam failure instance counter corresponding to the access network device.
  • the method includes: the terminal receives an instruction to activate the access network device; The terminal starts to count the number of instances of beam failures of the access network equipment.
  • the access network device can control the communication between the access network device and the terminal according to the beam failure situation, so as to prevent the terminal from communicating with the access network device where beam failure often occurs, thereby reducing the energy consumption of the terminal .
  • a communication method may be an access network device, or a component (chip, circuit, or others) configured in the access network device, including: sending a first threshold to a terminal value and the indication information of the second threshold value, the access network device performs data communication with the terminal based on the beam, and when the number of beam failure instances of the access network device is greater than or equal to the second threshold value, the access network device performs data communication with the terminal.
  • the beam of the device is in a beam failure state; when the number of beam failure instances of the access network device is greater than the first threshold value and less than the second threshold value, the access network device receives the terminal indication beam recovery information.
  • receiving The receiving of the beam restoration information indicated by the terminal by the network access device includes: receiving the beam restoration indicated by the terminal by the access network equipment whose number of beam failure instances is greater than the first threshold and less than the second threshold or, other access network devices other than the access network device for which the number of beam failure instances is greater than the first threshold value and less than the second threshold value receives the beam recovery information indicated by the terminal.
  • the access network device receiving the beam recovery information indicated by the terminal includes: The access network device receives the beam recovery request MAC CE.
  • a third possible implementation manner of the second aspect includes: the receiving of the beam restoration information indicated by the terminal.
  • the network access device is the first access network device, and the first access network device sends a beam recovery response to the terminal; if the beam recovery request MAC CE includes the beam recovery information of the second access network device, the first access network device The network device forwards the beam recovery information, or the beam recovery request MAC CE, to the second access network device.
  • the beam recovery request MAC CE includes at least one cell beam recovery information element, the cell beam The restoration information unit is used to indicate the beam restoration information of the corresponding cell, and the cell beam restoration information unit includes at least one of the following contents: the cell indicates the C domain, which is used to indicate the cell corresponding to the cell beam restoration information unit; access The number of network equipment beam recovery information elements indicates the N field, which is used to indicate the number of access network equipment beam recovery information elements in the cell beam recovery information elements, and the access network equipment beam recovery information elements are used to indicate the access network equipment. beam recovery information.
  • the cell beam recovery information unit further includes at least one beam recovery information unit of the access network equipment
  • the The access network equipment beam recovery information unit includes at least one of the following contents: the available candidate beam indicates the AC field, which is used to indicate whether the content in the candidate reference signal index Candidate RS ID field is valid; the candidate reference signal index Candidate RS ID field, with the index of the reference signal indicating the candidate beam; the access network equipment indicates the TI field, which is used to indicate the access network equipment corresponding to the beam recovery information element of the access network equipment; or the beam failure indication BF field is used to indicate the Whether the access network equipment corresponding to the access network equipment beam recovery information unit needs to perform beam recovery.
  • the sixth possible implementation manner of the second aspect includes: sending an instruction to deactivate the access network device to the terminal; The access network device stops communicating with the terminal.
  • the seventh possible implementation manner of the second aspect includes: sending an instruction to activate the access network device to the terminal; The access network device starts data transmission with the terminal.
  • a communication method is provided.
  • the execution body of the method is a terminal, and may also be a component (chip, circuit or others) configured in the terminal, including:
  • the beam recovery request MAC CE includes at least the cell beam recovery information element of one or more cells where the terminal equipment is located, and the cell beam recovery information element is used to indicate the beam recovery information of the corresponding cell, the cell
  • the beam recovery information element includes the following:
  • a cell indication C domain used to indicate the cell corresponding to the cell beam recovery information element
  • the number of access network equipment beam recovery information elements indicates the N field, which is used to indicate the number of access network equipment beam recovery information elements in the cell beam recovery information elements, and the access network equipment beam recovery information elements are used to indicate the Beam recovery information of the access network equipment.
  • a communication method is provided, and the execution body of the method may be an access network device, such as a target access network device, or a component (chip, circuit or others) configured in the access network device, including :
  • the beam recovery request MAC CE includes at least the cell beam recovery information element of one or more cells where the terminal equipment is located, and the cell beam recovery information element is used to indicate the beam recovery information of the corresponding cell, the cell
  • the beam recovery information element includes the following:
  • a cell indication C domain used to indicate the cell corresponding to the cell beam recovery information element
  • the number of access network equipment beam recovery information elements indicates the N field, which is used to indicate the number of access network equipment beam recovery information elements in the cell beam recovery information elements, and the access network equipment beam recovery information elements are used to indicate the Beam recovery information of the access network equipment.
  • the cell beam recovery information unit further includes at least one of the access network equipment beam recovery information unit, the The access network equipment beam recovery information element includes one or more of the following:
  • the AC field can be indicated by the candidate beam, which is used to indicate whether the content in the candidate reference signal index Candidate RS ID field is valid;
  • Candidate reference signal index Candidate RS ID field used to indicate the index of the reference signal of the candidate beam
  • the access network device indicates the TI field, which is used to indicate the access network device corresponding to the beam recovery information unit of the access network device.
  • the target access network device is One of the one or more access network devices corresponding to the one or more cells in data communication with the terminal.
  • the target access network device is the location where the terminal receives the uplink authorization. Access network equipment of the corresponding cell.
  • the cell indicates the C domain indicates The cell includes the special cell SpCell.
  • the cell corresponding to the special cell SpCell indicates the C0 in the C domain bits.
  • the cell indicates that the C domain includes C0 ⁇ C7 8 bits or C0 ⁇ C31 32 bits, each bit corresponds to a cell, for each bit, if the value is 1, it indicates that the cell corresponding to the bit is in the beam recovery Beam recovery information of the access network equipment that needs to perform beam recovery is reported in the request MAC CE; if the value is 0, it indicates that the cell corresponding to the bit is not reported in the beam recovery request MAC CE and needs to perform beam recovery The beam recovery information of the access network equipment.
  • the AC field occupies 1 bit, and when the AC field value is 1, it means The terminal has found an available candidate beam for the corresponding access network device; when the AC field value is 0, it indicates that the terminal has not found an available candidate beam for the corresponding access network device.
  • the access network equipment beam recovery The number of information units indicates that the N field occupies 8 bits or 32 bits, and each bit corresponds to a cell. For each bit, if the value is 0, it indicates the beam recovery information of the access network equipment of the cell corresponding to the bit. The number of units is 1, and if the value is 1, it indicates that the number of access network equipment beam recovery information units of the cell corresponding to this bit is 2.
  • a ninth possible implementation manner of the third aspect it also includes:
  • a ninth possible implementation manner of the third aspect it also includes:
  • the tenth possible implementation manner of the third aspect it further includes:
  • the number of beam failure instances of the access network device is greater than or equal to the second threshold value, it is determined that the beam of the access network device is in a beam failure state.
  • the eleventh possible implementation manner of the third aspect it further includes:
  • Indication information of the first threshold value and the second threshold value is received.
  • the statistics of the number of beam failure instances are based on the beam failure instance counter and Beam failure detection timer.
  • a fifth aspect of the embodiments of the present application provides a communication device.
  • the device provided by the present application has a function of implementing the behavior of a base station or a terminal in the above method aspect, and includes components for performing the steps or functions described in the above method aspect. (means).
  • the steps or functions can be implemented by software, or by hardware, or by a combination of hardware and software.
  • the above-mentioned apparatus includes one or more processors, and further, may include a communication unit.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of the base station in the above method. For example, beam restoration is performed according to the indication information in the beam restoration request.
  • the communication unit is used to support the communication between the apparatus and other devices, and realize the function of receiving and/or sending. For example, a first threshold value and a second threshold value indication message are sent to the terminal.
  • the apparatus may further include one or more memories, where the memories are coupled to the processor and store necessary program instructions and/or data of the base station.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the device may be a base station, a next generation base station (Next Generation NodeB, gNB) or a transmission point (Transmitting and Receiving Point, TRP), a distributed unit (distributed unit, DU) or a centralized unit (centralized unit, CU), etc.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a chip.
  • the communication unit may be an input/output circuit or an interface of the chip.
  • the above device includes a transceiver, a processor and a memory.
  • the processor is used for controlling the transceiver to send and receive signals
  • the memory is used for storing a computer program
  • the processor is used for running the computer program in the memory, so that the apparatus executes the method performed by the base station in the second aspect or the fourth aspect.
  • the above-mentioned apparatus includes one or more processors, and further, may include a communication unit.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of the terminal in the above method. For example, count the number of beam restoration instances of the access network equipment, etc.
  • the communication unit is used to support the communication between the apparatus and other devices, and realize the function of receiving and/or sending. For example, an indication message of the first threshold value and the second threshold value is received.
  • the apparatus may further include one or more memories, which are coupled to the processor and store necessary program instructions and/or data of the apparatus.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the apparatus may be an intelligent terminal or a wearable device, etc.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a chip.
  • the communication unit may be an input/output circuit or an interface of the chip.
  • the above device includes a transceiver, a processor and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the apparatus executes the method performed by the terminal in the first aspect or the third aspect.
  • a system in a sixth aspect, includes the above-mentioned base station.
  • the system further includes the above-mentioned terminal.
  • a readable storage medium or program product for storing a program, the program comprising instructions for performing the method of any one of the first to fourth aspects.
  • a readable storage medium or program product for storing a program that, when the program is run on a computer, causes the computer to execute the instructions of the method in any one of the first to fourth aspects .
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a network architecture in which multiple DUs share one CU according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of protocol layer functions of a CU and DU provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram of an RRC state transition provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of multiple TRPs in a cell according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a possible implementation manner provided by the embodiment of the present application.
  • FIG. 7 is a flowchart of a possible implementation manner provided by the embodiment of the present application.
  • FIG. 8 is a flowchart of a possible beam recovery provided by an embodiment of the present application.
  • FIG. 9a is a flowchart of a possible candidate beam search provided by an embodiment of the present application.
  • FIG. 9b is a flowchart of a possible candidate beam search provided by an embodiment of the present application.
  • FIG. 9c is a flowchart of a possible candidate beam search provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • 15 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 16 is a flowchart of a possible implementation manner provided by this embodiment of the application.
  • 17 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 18 is a schematic diagram of a possible beam recovery request MAC CE provided by an embodiment of the present application.
  • FIG. 19 is a flowchart of a possible implementation manner provided by this embodiment of the application.
  • FIG. 20 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • words such as “first” and “second” are used to distinguish actions, devices, units or modules.
  • the first information and the second information are only for distinguishing different information, and the sequence of the first information is not limited.
  • the words “first”, “second” and the like do not limit the quantity and execution order, and the words “first”, “second” and the like are not necessarily different.
  • At least one item (one) refers to one or more, and “multiple” refers to two or more.
  • And/or which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are an “or” relationship, but may also indicate an “and/or” relationship, which can be understood with reference to the context.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5th generation (5th generation) generation 5G systems
  • NR new radio access technology
  • 6G systems 6G systems.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • different base stations may be base stations with different identities, or may be base stations with the same identity that are deployed in different geographic locations.
  • the base station does not know whether it will involve the scenario applied by the embodiments of the present application.
  • the base station or the baseband chip can support the methods provided by the embodiments of the present application before deployment. In some scenarios, the methods provided by the embodiments of the present application may also be supported by upgrading or loading after deployment. It can be understood that the foregoing base stations with different identities may correspond to base station identities, or may correspond to cell identities or other identities.
  • FIG. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application.
  • the communication system 100 includes access network equipment 101 (gNB1 and gNB2), user equipment (user equipment, UE) 102, and core network equipment (core network, CN) 103.
  • the access network device 101 may be configured with multiple antennas, and the UE 102 may also be configured with multiple antennas.
  • Access network equipment and core network equipment may be collectively referred to as network equipment, or, network side equipment, access network and core network may be collectively referred to as network side.
  • access network equipment and terminals may also include various components related to signal transmission and reception (eg, processors, modulators, multiplexers, demodulators or demultiplexers, etc.).
  • the access network device refers to a radio access network (radio access network, RAN) node (or device) that accesses the terminal to the wireless network, and may also be referred to as a base station.
  • the access network device is a device with wireless transceiver function or a chip that can be installed in the device.
  • the device can broadly cover various names in the following, or be replaced with the following names, such as: node B (nodeB), evolution type Base station (evolved nodeB, eNB), gNB, relay station, access point, transmission reception point (TRP), transmission point (TP), master station (master eNodeB, MeNB), secondary station (secondary eNodeB) , SeNB), multi-standard radio (multi-standard radio, MSR) node, home base station, network controller, access node, wireless node, access point (access point, AP), transmission node, transceiver node, baseband unit ( base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), radio head (remote radio head, RRH), centralized unit (central unit, CU) , distributed unit (DU), positioning node, etc.
  • nodeB node B
  • eNB evolution type Base station
  • TRP transmission reception point
  • TP transmission point
  • master station master eNodeB, MeNB
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used to be provided in the aforementioned equipment or apparatus.
  • the base station may also be a mobile switching center, a device that assumes the function of a base station in D2D, V2X, and M2M communications, a network-side device in a 6G network, a device that assumes the function of a base station in a future communication system, and the like.
  • Base stations can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
  • the device can be stationary or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station.
  • a helicopter or drone may be configured to function as a device that communicates with another base station.
  • access network equipment may include BBUs and RRUs. Some baseband functions, such as beamforming functions, can be implemented in the BBU or, alternatively, in the RRU.
  • the connection interface between the BBU and the RRU may be a common public radio interface (common public radio interface, CPRI), or an enhanced common public radio interface (enhance CPRI, eCPRI).
  • the access network equipment may include CUs and DUs. CU and DU can be understood as the division of the base station from the perspective of logical functions. The CU and DU can be physically separated or deployed together.
  • FIG. 2 is a schematic diagram of a network architecture in which multiple DUs share one CU according to an embodiment of the application.
  • the core network and the RAN communicate with each other, and the base stations in the RAN are separated into CUs and DUs.
  • Multiple DUs share one CU.
  • the network architecture shown in FIG. 2 can be applied to a 5G communication system, and can also share one or more components or resources with an LTE system.
  • the access network equipment including the CU node and the DU node separates the protocol layers, and the functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the CU centrally controls the DU.
  • the CU is deployed with a radio resource control (RRC) layer in the protocol stack, a packet data convergence protocol (PDCP) layer, and a service data adaptation layer. Protocol (service data adaptation protocol, SDAP) layer;
  • DU is deployed with radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer in the protocol stack, and physical layer (physical layer) , PHY).
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • SDAP service data adaptation protocol
  • DU is deployed with radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer in the protocol stack, and physical layer (physical layer) , PHY).
  • the CU has the processing capabilities of RRC, PDCP and SDAP.
  • DU has the processing capability of RLC, MAC and PHY. It can be understood that the division of the above functions is only an example, and does not constitute a limitation on the CU and the DU.
  • the functions of the CU can be implemented by one entity or by different entities.
  • the functions of the CU can be further segmented, for example, the control plane (CP) and the user plane (user plane, UP) can be separated, that is, the CU control plane (CU-CP) and the CU user plane (CU -UP).
  • the CU-CP and the CU-UP may be implemented by different functional entities, and the CU-CP and the CU-UP may be coupled with the DU to jointly complete the functions of the base station.
  • the CU-CP is responsible for the control plane function, which mainly includes the RRC and the PDCP control plane PDCP-C.
  • PDCP-C is mainly responsible for one or more of control plane data encryption and decryption, integrity protection, and data transmission.
  • CU-UP is responsible for user plane functions, mainly including SDAP and PDCP user plane PDCP-U.
  • SDAP is mainly responsible for processing the data of the core network and mapping the data flow to the bearer.
  • PDCP-U is mainly responsible for one or more of data plane encryption and decryption, integrity protection, header compression, serial number maintenance, and data transmission.
  • the CU-CP and CU-UP are connected through the E1 interface.
  • CU-CP represents that the access network equipment is connected to the core network through the Ng interface.
  • the CU-CP is connected to the DU through the F1-C (control plane).
  • the CU-UP is connected through F1-U (user plane) and DU.
  • the access network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU may be divided into devices in the radio access network RAN, and the CU may also be divided into devices in the core network CN, which is not limited herein.
  • a terminal may also be referred to as a terminal, user equipment (UE), access terminal, subscriber unit, subscriber station, mobile terminal (MT), mobile station (MS), remote station, remote terminal, Mobile equipment, user terminal, wireless communication device, user agent or user equipment.
  • UE user equipment
  • MT mobile terminal
  • MS mobile station
  • remote terminal Mobile equipment, user terminal, wireless communication device, user agent or user equipment.
  • a terminal is a device that provides voice and/or data connectivity to a user and can be used to connect people, things and machines.
  • the terminal in the embodiments of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a wearable device, a mobile internet device (mobile internet device, MID), a virtual reality (virtual reality, VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical (remote medical), intelligent Wireless terminals in the power grid (smart grid), wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the embodiments of the present application do not limit application scenarios.
  • the methods and steps implemented by the terminal in this application may also be implemented by components (eg, chips or circuits) that can be used in the terminal.
  • the aforementioned terminals and components (eg, chips or circuits) that can be provided in the aforementioned terminals are collectively referred to as terminals.
  • the terminal can also be used to act as a base station.
  • a terminal may act as a scheduling entity that provides sidelink signals between terminals in V2X or D2D or the like.
  • cell phones and automobiles communicate with each other using sidelink signals. Communication between cell phones and smart home devices without relaying communication signals through base stations.
  • the core network equipment refers to the equipment in the CN that provides service support for the terminal.
  • core network equipment is: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) Entities, etc., are not listed here.
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • the AMF entity may be responsible for terminal access management and mobility management
  • the SMF entity may be responsible for session management, such as user session establishment, etc.
  • the UPF entity may be a user plane functional entity, mainly responsible for connecting external network.
  • AMF entities may also be referred to as AMF network elements or AMF functional entities
  • SMF entities may also be referred to as SMF network elements or SMF functions entity etc.
  • both gNB1 and gNB2 can communicate with multiple UEs.
  • the UE communicating with gNB1 and the UE communicating with gNB2 may be the same or different.
  • the UE 102 shown in FIG. 1 can communicate with gNB1 and gNB2 at the same time, but this only shows a possible scenario. In some scenarios, the UE may only communicate with gNB1 or gNB2, which is not limited in this application. .
  • FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may also include other access network devices, terminals, or core network devices, which are not shown in FIG. 1 .
  • the radio resource control (RRC) states of the UE include a connected state (RRC_CONNECTED), an idle state (RRC_IDLE), and a deactivated state (RRC_INACTIVE, or the third state).
  • the RRC inactive (inactive) state is a newly introduced state in which the terminal is connected to the 5G core network through the base station, and the state is between the connected state and the idle state.
  • the RRC_INACTIVE state there is no RRC connection between the terminal and the access network device, but the connection between the access network device and the core network device is maintained, and the terminal saves all or part of the information necessary to establish/restore the connection. Therefore, in the RRC_INACTIVE state, when the terminal needs to establish a connection, it can quickly establish or restore an RRC connection with the access network device according to the stored relevant information.
  • the UE When the UE is in the RRC_CONNECTED state, the UE has established links with the base station and the core network. When data arrives at the network, it can be directly transmitted to the UE; when the UE is in the RRC_INACTIVE state, it means that the UE has established links with the base station and the core network before. , but the link between the UE and the base station is released, but the base station will store the context of the UE. When there is data to be transmitted, the base station can quickly restore this link; when the UE is in the RRC_IDLE state, the connection between the UE and the base station and the network There is no link. When there is data to be transmitted, a link from the UE to the base station and the core network needs to be established.
  • FIG. 4 is a schematic diagram of an RRC state transition provided by an embodiment of the present application.
  • the UE in the RRC_IDLE state, the UE can access the base station, and the UE can communicate with the base station during the access process or after accessing the base station.
  • the RRC establishment process is performed, so that the state of the UE is converted from the RRC_IDLE state to the RRC_CONNECTED state.
  • the UE may initiate an RRC establishment process, and attempt to establish an RRC connection with the base station to enter the RRC_CONNECTED state.
  • the base station can change the state of the UE from the RRC_CONNECTED state to the RRC_IDLE state or the RRC_INACTIVE state by releasing the RRC process, such as sending an RRC release (RRCRelease) message to the UE.
  • RRC_INACTIVE state the UE may enter the RRC_IDLE state by releasing the RRC connection, or the UE may enter the RRC_CONNECTED state by resuming the RRC connection.
  • a cell also known as a cell, refers to the area covered by a base station or a part of the base station (sector antenna) in a cellular mobile communication system.
  • the terminal can communicate with the access network equipment through the transmission resources allocated by the base station. to communicate.
  • the terminal may have a communication connection with multiple access network devices and send and receive data, and the multiple access network devices may serve different cells, exemplarily, with dual-connectivity (DC) and carrier aggregation (carrier aggregation) aggregation, CA) as an example for a brief introduction.
  • DC dual-connectivity
  • CA carrier aggregation
  • the terminal has a communication connection with two access network devices at the same time and can send and receive data.
  • the access network device may be called It is a master node (master node, MN), for example, the master node can be a MeNB or MgNB, but not limited to this; then another access network device can be called a secondary node (secondary node, SN), for example, a secondary node It may be SeNB or SgNB, but is not limited to this.
  • the master node is a control plane anchor point, that is, an RRC connection is established between the terminal and the master node, and a control plane connection is established between the master node and the core network.
  • multiple serving cells in the master node form a master cell group (MCG), including a primary cell (PCell) and optionally one or more secondary cells (secondary cell, SCell).
  • MCG master cell group
  • SCell secondary cell
  • SCG secondary cell group
  • the serving cell refers to a cell configured by the network for the terminal to perform uplink and downlink transmission.
  • the communication system may support aggregation between different carrier units, and aggregate 2 or more carriers together to support a larger transmission bandwidth.
  • a terminal can be configured with multiple carrier units (component carrier, CC, or component carrier, component carrier, carrier, etc.), and each CC can correspond to an independent cell, so one CC can also be equivalent to one community.
  • the primary cell PCell corresponds to the primary CC (or the primary carrier), and may be a cell for initial connection establishment for a terminal, a cell for RRC connection reestablishment, or a primary cell designated in a handover process.
  • the secondary cell SCell corresponds to a secondary CC (or a secondary carrier), which may be added during RRC reconfiguration, and is used to provide additional radio resources.
  • a secondary CC or a secondary carrier
  • the terminal For a terminal in the connected state, if carrier aggregation is not configured, the terminal has one serving cell; if carrier aggregation is configured, the terminal can have multiple serving cells (serving cells), which can be called a serving cell set.
  • the primary cell and the secondary cell described above constitute a serving cell (serving cell) set of the terminal.
  • the serving cell set includes at least one primary cell and at least one secondary cell.
  • a terminal configured with carrier aggregation can perform data transmission with one PCell and multiple SCells.
  • the PCell and the PsCell may be called a special cell (special cell, SpCell); in the CA technology, the PCell may be called the SpCell. That is, for the terminal, the serving cell consists of all SpCells and all SCells.
  • a terminal device can connect to and communicate with multiple TRPs in the same cell.
  • a base station is a radio transmitter fixed at a geographic location.
  • the multiple TRPs may be a group of antennas of a base station.
  • the architecture of the base station may be that one baseband processing unit is located in one geographic location, which connects multiple TRPs in multiple geographic locations.
  • each TRP may be composed of a radio frequency processing unit and an antenna.
  • the geographic locations where the multiple TRPs are located may each have a radio frequency processing unit and a set of antennas.
  • the baseband processing unit and the radio frequency processing unit at the transmission point can be connected by optical fiber. Communication between TRPs can be performed through ideal backhaul or non-ideal backhaul.
  • a cell may be an area covered by multiple TRPs of a base station. There are multiple TRPs in a cell, and it can also be understood that when the terminal communicates with the base station of the cell where it is located, it can communicate through multiple TRPs.
  • the division is performed according to the cells served by the TRP, that is, if the TRP serves the first cell, the TRP is called the TRP of the first cell.
  • multiple TRP transmissions can be divided into two types: multiple DCI multiple TRP transmissions, or single DCI multiple TRP transmissions.
  • the terminal can identify the transmission type of multiple TRPs according to the parameters configured by the network device. Taking the NR system as an example, it can be identified through the RRC parameter control-resource set pool index (CORESETPoolIndex).
  • CORESETPoolIndex RRC parameter control-resource set pool index
  • the scheduling information of different TRPs is carried in the physical downlink control channel (PDCCH) resources indicated by different CORESETPoolIndex, and one PDCCH schedules the physical downlink shared channel (physical downlink) of one TRP. shared channel, PDSCH).
  • the network device instructs the terminal to perform data transmission with multiple TRPs through the transmission configuration indication (TCI), time domain resource assignment (TDRA) and antenna ports in the DCI.
  • TCI transmission configuration indication
  • TDRA time domain resource assignment
  • high frequency bands are used for communication transmission.
  • a major problem with high-frequency communication is that the signal energy drops sharply with the transmission distance, resulting in short signal transmission distances.
  • high-frequency communication adopts beamforming technology, which is weighted through a large-scale antenna array to concentrate the signal energy in a smaller range to form a beam-like signal (called a beam), thereby improving the Transmission distance.
  • a beam is a communication resource.
  • the beams can be wide beams, or narrow beams, or other types of beams.
  • the beam forming technology may be beamforming technology or other technical means.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, a hybrid beamforming technology, and the like. Different beams can be considered as different resources.
  • the same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • Beams include transmit beams (which may also be referred to as transmit beams) and receive beams.
  • Sending beams may refer to the distribution of signal strengths formed in different directions in space after signals are transmitted through antennas, and receiving beams may refer to the distribution of antenna arrays that enhance or weaken the reception of wireless signals in different spatial directions.
  • Beams can be understood as spatial filters or spatial parameters.
  • the beam used to transmit the signal may be referred to as a transmission beam (transmission beam, or Tx beam), a spatial domain transmit filter, or a spatial domain transmit parameter.
  • the beam used to receive the signal may be called a reception beam (reception beam, ie Rx beam), a spatial domain receive filter or a spatial domain receive parameter.
  • the present invention provides a method, the method includes: the terminal receives the indication information of the first threshold value and the second threshold value; the terminal performs data communication with the terminal on one or more of the cells where it is located Beam failure instance statistics are carried out on the access network equipment of the The target access network device sends the beam recovery request MAC CE.
  • the possibility of beam failure of the access network equipment can be reduced, and the reliability of the network can be improved. It can also reduce the possibility that all the beams of the access network equipment of the SpCell that perform data communication with the terminal fail and need to perform beam recovery through random access with a longer time.
  • the terminal establishes a connection with one or more TRPs and performs data transmission in the cell where the terminal is located is used as an example to introduce. Not limited.
  • a possible beam recovery implementation method including:
  • S601 The terminal receives the indication information of the first threshold value and the second threshold value.
  • the terminal establishes a connection with at least one cell, and performs data communication with one or more TRPs in the cell.
  • the terminal receives the indication information of the first threshold value and the second threshold value, and the first threshold value and the second threshold value can be used to determine the beam state of the TRP, and the beam state of the TRP includes the following content: if the beam If the number of failure instances is greater than or equal to the second threshold, the beam state of the TRP is beam failure; if the number of beam failure instances is greater than or equal to the first threshold and less than the second threshold, the beam state of the TRP is Beam pre-failure; if the number of beam failure instances is less than the first threshold value, the beam state of the TRP is beam normal.
  • the network device sets the first threshold value and the second threshold value according to the requirements on transmission reliability of the service type in the cell.
  • the network device may send the first threshold value and the second threshold value to the terminal through different indication messages, or through the same indication message.
  • the indication message may be carried by one of RRC signaling, DCI, or MAC CE.
  • the indication information of the first threshold value and the second threshold value may be a specific value, or an index of the threshold value may be specified in the protocol, and the specific value may be indicated by the index.
  • Table 1 a possible index value-threshold value correspondence is provided, and the network side can indicate to the terminal that the first threshold value is "01", that is, it means that the first threshold value is 4,
  • the second threshold value is "11", which means that the second threshold value is 16.
  • the terminal may also receive other beam failure related configuration information, including the related configuration in the prior art, which will not be repeated here.
  • S602 The terminal counts the number of beam failure instances of the TRP that perform data communication with the terminal.
  • the terminal communicates data with one or more TRPs in the cell based on the beam.
  • the data communication may be communication of data services or communication of control information of non-data services.
  • the terminal side measures the link quality of the beam according to the configuration of the base station, and compares the measurement result with the measurement threshold configured by the base station for judging beam failure instances, so as to determine whether the current beam in this measurement is a beam failure instance.
  • the terminal uses the beam failure instance counter and the beam failure detection timer to count the number of beam failure instances for each TRP that performs data communication in the cell. For example, if the terminal determines that the beam of the TRP is a beam failure instance, the beam failure instance counter of the TRP is incremented by 1, and the beam failure detection timer is restarted; when the beam failure detection timer of the TRP times out, or, the terminal receives the TRP When the beam recovery response corresponding to the beam recovery request is received, the beam failure counter corresponding to the TRP is cleared, and the beam failure detection timer is restarted. It should be noted that the specific implementation of the counting of the number of beam failure instances by the terminal through the beam failure instance counter and the beam failure detection timer can be implemented according to the prior art, and will not be repeated here.
  • the terminal may determine that the beam state of the TRP is beam failure.
  • S603 The terminal performs beam recovery on the TRP whose number of beam failure instances is greater than or equal to the first threshold and less than the second threshold.
  • the terminal may first judge the beam state of the TRP. For example, the terminal compares the number of beam failure instances of the TRP for data communication with the first threshold value and the second threshold value, respectively. When the number of beam failure instances of the TRP is greater than the first threshold value and less than the second threshold value When the limit is reached, the terminal judges that the beam is in a pre-failure state, and performs beam recovery on the TRP whose beam state is beam pre-failure.
  • a possible implementation method is provided, as shown in FIG. 7 , including:
  • S701 The terminal receives the indication information of the first threshold value and the second threshold value sent by the network device.
  • S702 The terminal counts the number of beam failure instances for TRP1 and TRP2 respectively.
  • the terminal counts the number of beam failure instances of TRP1 through the first beam failure instance counter and the first beam failure detection timer, and counts the number of beam failure instances of TRP2 through the second beam failure instance counter and the second beam failure detection timer.
  • S703 The terminal performs beam recovery for TRPs whose number of beam failure instances is greater than or equal to the first threshold and less than the second threshold.
  • the terminal compares the number of beam failure instances of TRP1 with the first threshold value and the second threshold value to obtain the beam state of TRP1; and compares the number of beam failure instances of TRP2 with the first threshold value and the second threshold value.
  • the threshold value is compared to obtain the beam state of TRP2.
  • the terminal sends a beam recovery request MAC CE to perform beam recovery for the TRP whose number of beam failure instances is greater than or equal to the first threshold and less than the second threshold.
  • a beam recovery request MAC CE to perform beam recovery for the TRP whose number of beam failure instances is greater than or equal to the first threshold and less than the second threshold.
  • S801 The terminal determines a TRP that needs beam recovery, and searches for candidate beams for the TRP.
  • the terminal measures all the beams of the TRP that need beam recovery according to the configuration of the base station. If the beam measurement result is greater than or equal to the candidate beam determination threshold configured by the base station, it is determined that the beam can be used as a candidate beam. After all beams of the TRP are measured and compared with the candidate beam determination threshold, the search process for the candidate beam of the TRP is completed, and the beam recovery request MAC CE can indicate the beam recovery information of the TRP that has completed the candidate beam search. .
  • S802 The terminal selects the target TRP to send a beam recovery request MAC CE.
  • the terminal sends the beam recovery request MAC CE.
  • the first one in the received cell can send the uplink authorization information indicated in the beam restoration request MAC CE. resource, send the beam recovery request MAC CE.
  • the terminal measures the signals of the TRPs that are in communication, selects a TRP with a better signal as the target TRP sent by the beam recovery request MAC CE, and then sends the beam recovery request through the uplink resources of the target TRP MAC CE. For example, the terminal obtains TRP1 and TRP2 CSI-RS RSRP measurement values, the CSI-RS RSRP measurement value of TRP1 is greater than the CSI-RS RSRP measurement value of TRP2, and it is judged that the signal of TRP1 is better, and TRP1 is used as the target TRP.
  • the terminal device obtains the CORESET corresponding to TRP1 according to the CORESETPoolIndex value corresponding to TRP1, and after detecting the uplink grant information in the PDCCH in the obtained CORESET, sends a beam recovery request MAC CE according to the uplink resources indicated in the uplink grant information.
  • the terminal can also measure the TRP signals of other cells where the terminal is located, and select the TRPs of other cells with better signals as the target TRP sent by the beam recovery request MAC CE.
  • the terminal selects the target TRP according to the beam state of the TRP. For example, when the beam state of TRP1 is beam failure and the beam state of TRP2 is beam normal, TRP2 can be directly selected as the target TRP.
  • the target TRP receives the beam recovery request MAC CE.
  • the target TRP receives the beam recovery request MAC CE.
  • the target TRP performs beam recovery according to the indication in the beam recovery request MAC CE. If the TRP corresponding to the beam recovery information in the beam recovery request MAC CE is not the target TRP, the target TRP sends the beam recovery request MAC CE, or the beam recovery information in the beam recovery request MAC CE, through the ideal The backhaul or non-ideal backhaul is forwarded to the TRP corresponding to the beam restoration information.
  • the uplink grant indicating the new transmission sent to the terminal after the TRP receives the beam recovery request MAC CE is used as the beam recovery response, so The HARQ process indicated in the uplink grant is the same as the HARQ process in which the terminal transmits the beam recovery request MAC CE.
  • the target TRP sends a beam recovery response to the terminal; in another possible implementation, it is agreed in the protocol, or the target TRP indicates at least one TRP that needs beam recovery to the terminal
  • the target TRP forwards the beam recovery related information to the TRP sending the beam recovery response, it also needs to forward the HARQ information required for sending the beam recovery response.
  • the terminal After receiving the beam recovery response, the terminal determines that the beam recovery is complete.
  • TRP sends beam recovery request MAC CE.
  • the terminal determines a TRP that needs to be beam restored, and searches for candidate beams for the TRP, including the following possible implementations.
  • S901a The terminal determines that the number of beam failure instances of TRP1 is greater than or equal to the first threshold value and less than the second threshold value, and the number of beam failure instances of TRP2 is less than the first threshold value.
  • S902a The terminal searches for candidate beams on TRP1.
  • At least one The TRP performs beam restoration, including:
  • S901b The terminal determines that the number of beam failure instances of TRP1 and TRP2 is greater than or equal to the first threshold and less than the second threshold.
  • S902b The terminal searches for candidate beams for TRP1 and/or TRP2.
  • the terminal selects a TRP with a pre-beam failure to search for candidate beams, for example, selects a TRP with a larger number of beam failure instances to search for candidate beams according to the number of beam failure instances of the TRP.
  • the terminal performs candidate beam search for TRP1 and TRP2, and after completing the candidate beam search for at least one TRP in TRP1 or TRP2, or after completing the candidate beam search for TRP1 and TRP2, can send beam recovery Request MAC CE.
  • the beam recovery request MAC CE includes beam recovery information of all TRPs that have completed the candidate beam search process.
  • Fig. 9c in a possible implementation manner, when there are TRPs in the cell communicating with the terminal, there are TRPs whose number of beam failure instances is greater than or equal to the first threshold and less than the second threshold, and there are When the number of beam failure instances is greater than or equal to the TRP of the second threshold, beam recovery is performed on the TRP whose number of beam failure instances is greater than or equal to the second threshold. Optionally, the number of beam failure instances is greater than or equal to the first threshold. Beam restoration is performed on the TRP with the limit value and less than the second threshold value, including:
  • S901c The terminal determines that the number of beam failure instances of TRP1 is greater than or equal to the first threshold value and less than the second threshold value, and the number of beam failure instances of TRP2 is greater than or equal to the second threshold value.
  • the terminal searches for candidate beams for TRP1.
  • the terminal searches for a candidate beam for TRP1, and carries the beam recovery information of TRP1 in the beam recovery request MAC CE.
  • S903c The terminal searches for candidate beams for TRP2.
  • the terminal searches for candidate beams for TRP2, and after completing the candidate beam search for TRP2, it can send a beam recovery request MAC CE.
  • the following possible implementations are provided for the beam recovery request MAC CE in the cell described in the above-mentioned embodiment that may involve multiple TRP scenarios.
  • the MAC CE includes :
  • C field information used to indicate the cell that needs beam restoration in the beam restoration request MAC CE.
  • the C domain occupies 8 bits.
  • the C domain includes 8 bits of C0 to C7, and each bit corresponds to a cell, for example, by the index of the cell, and the index is The cell of 1 corresponds to C1.
  • the value is 1, it indicates that the cell corresponding to the bit has reported the beam recovery information of the access network equipment that needs to perform beam recovery in the beam recovery request MAC CE; if the value is 1 0, indicating that the cell corresponding to the bit does not report the beam recovery information of the access network equipment that needs to perform beam recovery in the beam recovery request MAC CE.
  • the C domain occupies 8 bits as an example, and the number of bits occupied by the C domain is not limited.
  • the C domain can be specified according to the cell index range that the terminal needs to indicate or the maximum number of connectable cells. The number of bits occupied. Exemplarily, if the cell index range that the terminal needs to indicate is 0-7, or, the maximum number of cells that the terminal can connect to is 8, then it can be agreed that the C domain occupies 8 bits; for another example, the cell index range that the terminal needs to guide is 0-31, or, if the maximum number of cells that the terminal can connect to is 32, it can be agreed that the C domain occupies 32 bits.
  • C0 can also be specially designated as the SP domain, which is used to correspond to the SpCell, and indicates whether the beam recovery request MAC CE contains the beam recovery information of the access network equipment of the SpCell.
  • the beam recovery request MAC CE correspondingly includes a TRP beam recovery information element, which is used to indicate the beam recovery information of the corresponding TRP. It should be noted that it can also be agreed in the protocol that in the random access process, if the beam recovery request MAC CE is used to indicate that the TRP in the SpCell needs to perform beam recovery, the MAC CE may not include the TRP beam of the SpCell. Restoring the information unit.
  • the TRP beam recovery information elements in the beam recovery request MAC CE are arranged according to the corresponding positions of the corresponding cells in the C domain, so that the network device can correspond to the TRP beam recovery information elements and cells when reading the content of the beam recovery request MAC CE.
  • the TRP beam recovery information unit includes at least:
  • AC field used to indicate whether the terminal has found the corresponding TRP candidate beam.
  • the AC field occupies 1 bit. When the AC field value is 1, it indicates that the terminal has found a candidate beam for the corresponding TRP; when the AC field value is 0, it indicates that the terminal has not found a candidate beam for the corresponding TRP.
  • Candidate Beam field used to indicate candidate beam information.
  • the terminal reports the available beams searched by the network device through the Candidate Beam field, for example, it can be indicated by the index of the reference signal of the candidate beam configured by the network device.
  • the indication information in the Candidate Beam field is meaningless.
  • the bits in the Candidate Beam field can be all 0; when the AC field is 1, it indicates that the terminal has found a candidate beam for the corresponding TRP, and the Candidate Beam field contains information indicating the relevant information of the candidate beam.
  • the Candidate Beam field occupies 6 bits as an example for introduction, and the number of bits occupied by the Candidate Beam field is not limited.
  • the maximum number of beam information indexes or the range of beam information indexes that need to be indicated in the protocol can be specified. Specifies the length of the Candidate Beam field. For example, if the range of candidate beam indices to be indicated is 0-63, or the maximum number of candidate beam indices is 64, the Candidate Beam field can be agreed in the protocol to occupy 6 bits.
  • TI field information used to indicate the corresponding TRP.
  • the TI field occupies 1 bit, which can indicate 2 TRPs in the cell.
  • only the TI field occupies 1 bit as an example, and the number of bits occupied by the TI field can be agreed according to the range of the index of TRPs in the allowed cell in the protocol, or the maximum number of TRPs, Not limited. For example, if the range of the TRP index in the cell is 0-7, or the maximum number of TRPs is 8, the TI field may occupy 3 bits.
  • the content in the TI field may be the index of the TRP configured and specified by the network device, or other information that can indicate the index of the TRP may be used, for example, CORESETPoolIndex.
  • the terminal can send multiple beam recovery request MAC CEs shown in Figure 11, thereby reporting beam recovery related information of different TRPs in the same cell.
  • the beam recovery request MAC CE can indicate the beam recovery information of the TRP in which the beam failure occurs.
  • the N field can be used to indicate the number of TRPs in the cell that need to perform beam recovery in the beam recovery request MAC CE, and the beam recovery request MAC CE can indicate multiple TRPs in the cell that need to perform beam recovery.
  • the beam recovery information of includes:
  • C domain you can refer to the content related to the C domain in the embodiment shown in FIG. 10 .
  • N field used to indicate the number of TRP beam recovery information elements of cells that need beam recovery in the beam recovery request MAC CE.
  • the C field occupies 8 bits and can indicate up to 8 cells.
  • the N field contains 8 quantity indication information, indicating the quantity of TRP beam recovery information units in each cell.
  • the number of TRP beam recovery information elements may be the value of the number indication information in the N field plus 1, for example, if the terminal connects at most 2 TRPs in a cell, the number indication information needs to occupy 1 bit, A value of 0 means the quantity is 1, and a value of 1 means the quantity is 2. Therefore, in this embodiment, the N field occupies a total of 8 bits.
  • the number of bits occupied by the N domain is related to the number of bits occupied by the C domain and the maximum number of TRPs that the terminal can connect to in the cell.
  • the number of bits occupied by the N domain can be agreed, and the number of bits occupied by each quantity indication information in the N domain can be agreed. number of bits. For example, if it is agreed in the protocol that the terminal can be connected to a maximum of 16 cells, and each cell can be connected to a maximum of 4 TRPs, it can be agreed that the N field contains 16 quantity indication information, each quantity indication information occupies 2 bits, and the N fields occupy 2 bits. 32 bits.
  • the MAC CE includes Ni+1 TRP beam restorations information unit. It should be noted that, optionally, in the random access process, the Ni value corresponding to the SpCell cell in the MAC CE may be 0, and the MAC CE does not contain the TRP beam recovery information element of the SpCell.
  • TRP beam recovery information element For the TRP beam recovery information element, reference may be made to the content of the TRP beam recovery information element in the embodiment shown in FIG. 10 , which will not be repeated.
  • the TRP beam recovery information elements are first arranged in the order of the corresponding cell index, so that when parsing the beam recovery request MAC CE, the number of TRP beam recovery information elements in each cell can be obtained according to the indication information of the C domain and the N domain, and then the number of TRP beam recovery information elements in each cell can be obtained.
  • the TRP beam recovery information element corresponds to a cell.
  • For the TRP beam recovery information elements in the same cell optionally, they can be arranged in the order of the TRP index.
  • the beam recovery information elements of the cell can be arranged in order according to the index of the TRP, so that the network equipment
  • the TRP beam recovery information elements may be corresponding to TRP devices according to the order of the TRP beam recovery information elements, and at this time, there may be no TI field in the beam recovery information element to indicate TRP index information.
  • the beam recovery related information of multiple TRPs with beam failures in one cell can be indicated, thereby saving the overhead of sending the beam recovery request MAC CE.
  • the beam recovery request MAC CE it can indicate whether each device connected to the terminal needs to perform beam recovery, as shown in FIG. 12 , including:
  • M domain used to indicate the TRP that needs to be beam restored.
  • the M domain is a bitmap.
  • the number of bits occupied by the M domain is C*N, where C is the maximum number of cells that the terminal can connect to, and N is the number of cells in each cell that the terminal can connect to.
  • the maximum number of TRPs; in another possible implementation method, the number of bits in the M field is the sum of the numbers of TRPs in all cells to which the terminal has been connected.
  • the i-th bit Mi in the M field takes a value of 1, indicating that the beam recovery request MAC CE contains the beam recovery request of the TRP with index i; if it takes a value of 0, it indicates that the beam recovery request MAC CE does not contain an index Beam recovery request for TRP of i.
  • the index of the TRP may be obtained by configuring the indexes of all TRPs by the network device, or may be obtained according to the cell index and the index of the TRP in the cell.
  • the beam recovery request MAC CE For each bit in the M field with a value of 1, the beam recovery request MAC CE contains a corresponding TRP beam recovery information element.
  • the M field contains K bits of 1, K is greater than or equal to 1 is an integer, then the M field in the beam recovery request MAC CE contains K TRP beam recovery information elements.
  • the MAC CE of this embodiment and the value of the bit Mi corresponding to the SpCell are all set to 1.
  • the TRP of the SpCell may not be included after the M field.
  • the TRP beam recovery information element is not be included after the M field.
  • the TRP beam recovery information unit includes:
  • AC domain You can refer to the content related to the AC domain in FIG. 10 , which will not be repeated.
  • Candidate Beam field You can refer to the content related to the Candidate Beam field in Figure 10, which will not be repeated.
  • the beam recovery request MAC CE may be composed of multiple cell beam recovery information elements, and each cell beam recovery information element indicates a TRP of the corresponding cell that needs beam recovery, as shown in FIG. 13 .
  • the MAC CE includes:
  • the beam recovery request MAC CE contains one or more cell beam recovery information elements, and the cell beam recovery information element indicates the beam recovery information of a TRP of a cell that needs beam recovery. It can be understood that if there are TRPs in multiple cells that need to perform beam restoration, the beam restoration request MAC CE includes multiple cell beam restoration information elements.
  • the cell beam recovery information unit includes:
  • C field used to indicate the cell information corresponding to the cell beam recovery information unit.
  • the C domain is the index of the cell.
  • the C field occupies 6 bits, and the value ranges from 0 to 63, which can indicate 64 cells.
  • the number of bits occupied by the C domain is not limited, and the number of bits occupied by the C domain can be agreed in the protocol according to the maximum number of cells that the terminal can connect to, or according to the range of the cell index value. number. Exemplarily, if it is stipulated in the protocol that the number of cells to which the terminal is connected is at most 8, or, if the corresponding cell index range is 0-7, it may be stipulated that the C domain occupies 3 bits; for another example, the cell to which the terminal is connected is stipulated in the protocol. The maximum number is 32, or, if the corresponding cell index range is 0-31, it can be agreed that the C domain occupies 5 bits.
  • the cell beam restoration information unit further includes a TRP beam restoration information unit, and reference may be made to the content of the TRP beam restoration information unit in the embodiment shown in FIG. 10 , which will not be repeated.
  • the beam recovery information element of the cell may not include the beam recovery information of the TRP.
  • multiple cell beam recovery information elements with the same C domain value can be sent in the MAC CE, thereby indicating in one MAC CE the beam recovery information elements in the same cell.
  • the beam recovery information of multiple TRPs with beam failures reduces the resources occupied by the MAC CE.
  • the beam recovery request MAC CE may be composed of multiple cell beam recovery information elements, and each cell beam recovery information element includes an N field, which can indicate the TRP beam recovery information in the cell beam recovery information element
  • N field which can indicate the TRP beam recovery information in the cell beam recovery information element
  • the MAC CE includes:
  • the MAC CE includes one or more cell beam recovery information elements, and the cell beam recovery information element can indicate beam recovery related information of at least one TRP with beam failure in a cell that has a beam failure and completed the candidate beam search process.
  • the cell beam recovery information unit includes:
  • Domain C Reference may be made to the related content of domain C in the embodiment shown in FIG. 13 , which will not be repeated here.
  • N field used to indicate the number of TRP beam recovery information elements in the corresponding cell beam recovery information element.
  • the number of TRP beam recovery information elements indicated by the N field is the value of the N field plus 1.
  • the cell beam recovery information elements include K+1 TRP beam recovery information element. It should be noted that the value of the N field in the beam recovery information unit of different cells may be different.
  • the N field occupies 1 bit, so the cell beam restoration information unit contains at most two TRP beam restoration information units, where N is "0" to indicate that one TRP beam restoration information unit is included, and "1" indicates that it includes 2 TRP beam restoration information units.
  • TRP beam recovery information elements TRP beam recovery information elements.
  • the N domain occupies 1 bit as an example for introduction, and the number of bits occupied by the N domain is not limited.
  • the maximum number of TRPs that the terminal can connect to in a cell can be specified in the protocol. , or, the range of the TRP index specifies the number of bits occupied by the N domain. For example, the maximum number of TRPs in a cell is 8, or, when the range of the TRP index is 0-7, the N domain occupies 3 bits.
  • the cell beam recovery information element further includes the number of TRP beam recovery information elements indicated by the N field. It should be noted that, optionally, in the random access process, the N field of the cell beam recovery information element of SpCell in the beam recovery information MAC CE described in this embodiment is meaningless, and does not contain the TRP beam recovery information element.
  • TRP beam recovery information element For the TRP beam recovery information element, reference may be made to the content of the TRP beam recovery information element in the embodiment of FIG. 13 , which will not be repeated.
  • the TRP beam recovery information elements can be arranged according to the index of the TRP, and the network device can correspond to the TRPs according to the order of the TRP beam recovery information elements, and the TRP beam recovery information elements do not include the TI field.
  • each cell beam recovery information element in the beam recovery request MAC CE can indicate the information of a plurality of TRPs that need to perform beam recovery, which can reduce the overhead of the MAC CE.
  • the beam recovery request MAC CE may be composed of multiple cell beam recovery information elements, and each cell beam recovery information element includes the beam recovery information of all TRPs, as shown in FIG. 15 .
  • the MAC CEs described include:
  • the beam recovery request MAC CE includes one or more cell beam recovery information elements, and the cell beam recovery information elements include beam recovery information of all TRPs in the cell.
  • the cell beam recovery information unit includes:
  • Domain C Reference may be made to the related content of domain C in the embodiment shown in FIG. 13 , which will not be repeated here.
  • N domain You can refer to the related content of the N domain in the embodiment shown in FIG. 14 .
  • the N field indicates the total number of TRPs connected to the terminal in the cell corresponding to the cell beam recovery information unit.
  • the number of TRPs connected to the terminal is related. For example, the number of TRPs connected by the terminal in the cell is M+1, and M is an integer greater than or equal to 0, then the value of the N field is M, and the number of TRP beam recovery information elements in the cell beam recovery information element is M+1 .
  • the N field value is set to 0, and the cell beam recovery information element The TRP beam recovery information element is not included.
  • the value of the N field in the cell beam recovery information element of different cells may be different.
  • the value of the N field in one cell beam recovery information element is M
  • the value of the N field in the other cell beam recovery information element is K
  • M and K are integers greater than or equal to 0.
  • the TRP beam recovery information unit includes:
  • BF field used to indicate whether the TRP corresponding to the corresponding TRP beam recovery information unit reports beam recovery information.
  • the BF field occupies 1 bit, and when the value of the BF field is 0, it indicates that the corresponding TRP has not reported beam restoration information, and the information in the AC field and the Candidate Beam field in the TRP beam restoration information unit may be Invalid value; when the value of the BF field is 1, it indicates that the corresponding TRP reports beam restoration information, and the information in the AC field and the Candidate Beam field is valid.
  • AC domain You can refer to the content related to the AC domain in FIG. 10 , which will not be repeated.
  • Candidate Beam field You can refer to the content related to the Candidate Beam field in Figure 10, which will not be repeated.
  • the information indicating the device is not required in the MAC CE, and when the network device parses the MAC CE, the beam recovery information of the corresponding TRP can be obtained in the order of the TRP beam recovery information elements, thereby reducing the processing overhead.
  • the reserved field R field can also be added in the MAC CE as required, so that the number of bits occupied by the information in the MAC CE is an integer multiple of 8.
  • the R field of 2 bits can be added to this byte.
  • beam restoration request information of multiple cells can be indicated, and the beam restoration information of each cell can be implemented with reference to the methods described in FIGS. 10-15 , which will not be repeated.
  • the beam recovery request MAC CEs in the above embodiments can be combined with each other.
  • it can be agreed in the protocol that different formats are used according to the actual situation of the beam recovery information, and the MAC layer logical channel indication is used to distinguish them. .
  • S1601 The terminal receives the indication information of the first threshold value and the second threshold value.
  • the terminal communicates with TRP1, TPR2 and TRP3 on a beam basis.
  • TRP1, TRP2, and TRP3 belong to the same cell, and the cell ID is 1.
  • the terminal receives indication information of the first threshold value and the second threshold value from TRP1, where the indication information is carried by RRC signaling.
  • the network side indicates that the index of the first threshold value is "01", and the index of the second threshold value is "02". After the terminal receives the indication information, it can be obtained through Table 1.
  • the first threshold value is 4, and the second threshold value is 4. is 8.
  • S1602 The terminal counts the number of beam failure instances of TRP1, TRP2, and TPR3.
  • the terminal counts the number of beam failure instances of TRP1 through the first beam failure instance counter and the first beam failure detection timer, and counts the number of beam failure instances of TRP2 through the second beam failure instance counter and the second beam failure detection timer.
  • the beam failure instance counter and the third beam failure detection timer count the number of beam failure instances of the TRP3.
  • S1603 The terminal searches for candidate beams for TRP1 and TRP2.
  • the terminal side judges that the first beam failure instance counter is greater than or equal to the second threshold, and the beam state of TRP1 is beam failure; the second beam failure instance counter is greater than or equal to the first threshold and less than the second threshold, and the beam state of TRP2 is beam pre-beam. Failed; the second beam failure instance counter is less than the first threshold, and the beam state of TRP3 is that the beam is normal.
  • the terminal searches for candidate beams for TRP1 and TRP2.
  • the RS ID of the candidate beam of TRP1 is 1, and the RS ID of the candidate beam of TRP2 is 3.
  • S1604 The terminal determines that TRP3 is the target TRP.
  • the terminal compares the CSI-RS RSRPs of TRP1, TRP2, and TRP3, and determines that the CSI-RS RSRP value of TRP3 is the largest.
  • S1605 The terminal sends a beam recovery request MAC CE to TRP3.
  • the terminal device obtains the CORESET corresponding to TRP3 according to the CORESETPoolIndex value corresponding to TRP3, detects the PDCCH in the CORESET resource, and sends a beam recovery request MAC CE according to the uplink resource indicated in the uplink grant information in the PDCCH, which carries the TRP1 and beam recovery information for TRP2.
  • the beam recovery request MAC CE is shown in FIG. 17 .
  • the beam recovery request MAC CE only involves one cell, it only contains one cell beam recovery information element.
  • the first byte of the cell beam recovery information unit includes the C field/R field/N field.
  • the C field occupies 5 bits, and the value range is 0-31, so it can indicate up to 32 cells connected to the terminal;
  • the N field occupies 2 bits, and the value range is 0-3, which can indicate that the cell beam recovery information unit contains 1-4 TRP beam recovery information units; since the C domain and the N domain occupy 7 bits in total, in order to facilitate the parsing of the MAC CE, a 1-bit R domain is set between the C domain and the N domain.
  • TRP1 and TRP2 are "1", so "00001" is filled in the C field.
  • TRP1 and TRP2 need to perform beam restoration, there will be 2 TRP beam restoration information units, so fill in "01" in the N field.
  • the second byte of the cell beam restoration information unit starts with the TRP beam restoration information unit, and the TRP beam restoration information unit occupies 8 bits, including the AC field/TI field/Candidate RS ID field.
  • the AC field occupies 1 bit, the first value "1" indicates that the candidate beam is found, and the second value "0" indicates that the candidate beam is not found;
  • the TI field occupies 2 bits, and the value range is 0-3, so at most Indicates 4 TRPs;
  • the Candidate RS ID field occupies 5 bits and ranges from 0 to 31, so a maximum of 32 candidate beams can be indicated.
  • the TRP corresponding to the TRP beam recovery information unit finds a candidate beam, so fill in "1" in the AC field.
  • the TRP corresponding to the TRP beam recovery information unit is TRP1, and the ID of TRP1 is 0, so the TRI field is filled with "00".
  • the candidate beam ID index found by TRP1 is 1, so fill in "00001" in the Candidate RS ID field.
  • the TRP corresponding to the TRP beam recovery information unit finds a candidate beam, so fill in "1" in the AC field.
  • the TRP corresponding to the TRP beam recovery information unit is TRP2, and the ID of TRP2 is 1, so the TRI field is filled with "01".
  • the candidate beam ID index found by TRP2 is 3, so fill in "00011" in the Candidate RS ID field.
  • the MAC CE is shown in FIG. 18 .
  • the first byte of the beam recovery request MAC CE is the C field.
  • the C domain occupies 8 bits, including C0-C7 8 bits, so it can indicate up to 8 cells.
  • the second and third bytes of the beam recovery request MAC CE are N fields.
  • the N domain occupies 16 bits, including N0-N7, corresponding to C0-C7 respectively, N0-N7 occupies 2 bits respectively, and the value range is 0-3, which can indicate that the MAC CE contains at most 4 TRP beams of the corresponding cell Restoring the information unit.
  • the value of the second byte is "00000100", and the value of the second byte is "00000000”. The details are as follows:
  • the cell ID is 1 and the number of TRPs is 2, so N1 is filled with 01". Since the value of C0, and C2-7 is "0", it can indicate that all The corresponding cell has no TRP beam recovery information element, and the values of N0 and N2-N7 are filled in as "00".
  • each TRP beam restoration information unit occupies 8 bits, including the AC field/TI field/Candidate RS ID field.
  • the number of TRP beam recovery information elements is the sum of the number of TRP beam recovery information elements indicated in the N field, so this embodiment includes 2 TRP beam recovery information elements.
  • the description of the third byte can refer to the second byte in the MAC CE shown in FIG. 17
  • the description of the fourth byte can refer to the content of the third byte in the MAC CE shown in FIG. 17 , which will not be repeated.
  • TRP3 receives the beam recovery request MAC CE, and forwards the beam recovery information.
  • TRP3 receives the beam recovery request MAC CE, and forwards the indication information of the beam recovery request to TRP1 and TRP2 through ideal backhaul or non-ideal backhaul.
  • TRP1 and TRP2 perform beam restoration.
  • TRP1 and TRP2 respectively receive the beam recovery request indication and perform beam recovery.
  • S1608 The terminal receives the beam recovery response of TRP3.
  • TRP3 sends an uplink grant to the terminal.
  • the HARQ process in the uplink grant is the same as the HARQ process in which the terminal sends a beam recovery request MAC CE, and indicates a new transmission.
  • the beam failure instance counter is cleared.
  • a TRP control method is provided, which can be combined with the above-mentioned embodiments, including:
  • S1901 The terminal receives the indication information of the first threshold value and the second threshold value.
  • the terminal and TRP1 perform data communication based on the beam.
  • the terminal receives the indication information of the first threshold value and the second threshold value, and performs statistics on the number of beam failure instances on TRP1 through the first beam failure instance counter and the first beam failure detection timer.
  • the terminal performs beam recovery on the TRP.
  • the relevant content of the above-mentioned embodiment may be referred to, which will not be repeated.
  • the terminal may receive indication information through TRP1, where the indication information includes information indicating time domain and frequency domain resources of the PDCCH for monitoring TRP2.
  • the indication information may be carried by at least one of the following: RRC signaling, DCI, or MAC CE.
  • S1902 The terminal receives the activation TRP2 indication information, and starts to communicate with the TRP2.
  • the terminal receives the activation TRP2 indication information through TRP1.
  • the information indicating the activation of TRP2 may include information indicating time domain and frequency domain resources of the PDCCH for monitoring TRP2.
  • the activation TRP2 indication information may be carried by at least one of the following contents: RRC signaling, DCI, or MAC CE.
  • the terminal monitors the PDCCH of TRP2 according to the time domain and frequency domain resource information of the PDCCH of TRP2. Therefore, the terminal device can perform data communication with TRP1 and TRP2 based on the beam.
  • the terminal starts to count the number of beam failure instances on TRP2 through the second beam failure instance counter and the second beam failure detection timer.
  • S1903 The terminal receives the deactivation TRP1 indication information, and stops communicating with the TRP1.
  • the terminal receives deactivation TRP1 indication information, the deactivation TRP1 indication information includes deactivation TRP1 indication information, the terminal stops communicating with TRP1, and clears the first beam failure instance counter.
  • the terminal stops monitoring the PDCCH on the PDCCH time domain and frequency domain resources of TRP1, stops sending SRS, PUCCH, RACH and CSI reports to TRP1, and the network device stops sending PDCCH to the terminal through the PDCCH time domain and frequency domain resources of TRP1.
  • the network side and the terminal reserve the PDCCH time domain and frequency domain resources of TRP1, which can continue to be used after TRP1 is reactivated.
  • the network side counts the number of times the beam restoration request of TRP1 is received, and when the number of times of receiving the beam restoration request of TRP1 is greater than or equal to the threshold value of the number of times to deactivate TRP, the network side can make a judgment Deactivate TRP1, and send the deactivation TRP1 indication to the terminal.
  • the network side can also instruct TRP1 to deactivate according to service requirements. For example, when the duration of no data communication between TRP1 and the terminal is greater than or equal to the deactivation TRP duration threshold, the network side can make a judgment. Deactivate TRP1, and send the deactivation TRP1 indication to the terminal.
  • the indication information of the deactivation duration of the TRP1 may also be included.
  • the terminal stops communicating with the TRP1 after the time indicated by the deactivation duration indication, the TRP1 is reactivated, The terminal resumes communication with TRP1.
  • the indication information of the deactivation duration may be a specific duration value, or a gear with a specified duration in the protocol, and the deactivation duration is indicated by the index value of the gear.
  • the deactivation TRP1 indication information may be sent through TRP1 or TRP2, and the deactivation TRP1 indication information may be carried by at least one of the following: RRC signaling, DCI, or MAC CE.
  • the network device can determine and deactivate the TRP, thereby improving the energy saving effect of the UE.
  • FIG. 20 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • the terminal can be applied to the system shown in FIG. 1 to perform the functions of the terminal in the foregoing method embodiments.
  • FIG. 20 only shows the main components of the terminal.
  • the terminal 2000 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the entire terminal, execute software programs, and process data of the software programs, for example, to support the terminal to perform the actions described in the above method embodiments.
  • the memory is mainly used to store software programs and data.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 20 only shows one memory and one processor. In an actual terminal, there may be multiple processors and multiple memories.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, which is not limited in this embodiment of the present application.
  • the terminal may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire terminal, execute A software program that processes data from the software program.
  • the processor in FIG. 20 may integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • a terminal may include multiple baseband processors to adapt to different network standards, a terminal may include multiple central processors to enhance its processing capability, and various components of the terminal may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • an antenna and a control circuit with a transceiving function may be regarded as a transceiving unit 2001 of the terminal 2000, for example, used to support the terminal to perform a receiving function and a transmitting function.
  • the processor 2002 having the processing function is regarded as the processing unit 2002 of the terminal 2000 .
  • the terminal 2000 includes a transceiver unit 2001 and a processing unit 2002 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the device used for realizing the receiving function in the transceiver unit 2001 may be regarded as a receiving unit, and the device used for realizing the sending function in the transceiver unit 2001 may be regarded as a sending unit, that is, the transceiver unit 2001 includes a receiving unit and a sending unit,
  • the receiving unit may also be called a receiver, an input port, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter or a transmitting circuit, and the like.
  • the processor 2002 may be configured to execute the instructions stored in the memory, so as to control the transceiver unit 2001 to receive signals and/or send signals, so as to complete the functions of the terminal in the foregoing method embodiments.
  • the processor 2002 also includes an interface for implementing signal input/output functions.
  • the function of the transceiver unit 2001 can be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • FIG. 21 is a schematic structural diagram of an access network device provided by an embodiment of the present application, such as a schematic structural diagram of a base station.
  • the base station can be applied to the system shown in FIG. 1 to perform the functions of the access network equipment in the foregoing method embodiments.
  • Base station 2100 may include one or more DUs 2101 and one or more CUs 2102.
  • CU2102 can communicate with NG core (Next Generation Core Network, NC) or EPC.
  • the DU 2101 may include at least one antenna 21011 , at least one radio frequency unit 21012 , at least one processor 21013 and at least one memory 21016 .
  • the DU 2101 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing.
  • the CU 2102 may include at least one processor 21022 and at least one memory 21021 .
  • the CU2102 and the DU2101 can communicate through interfaces, wherein the control plane interface can be Fs-C, such as F1-C, and the user plan interface can be Fs-U, such as F1-U.
  • the CU2102 part is mainly used to perform baseband processing, control the base station, and so on.
  • the DU2101 and the CU2102 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the CU2102 is the control center of the base station, which may also be called a processing unit, and is mainly used to complete the baseband processing function.
  • the CU2102 may be used to control the base station to perform the operation procedures related to the access network device in the foregoing method embodiments.
  • the baseband processing on the CU and DU can be divided according to the protocol layers of the wireless network.
  • the functions of the PDCP layer and the above protocol layers are set in the CU, and the protocol layers below PDCP, such as the functions of the RLC layer, the MAC layer, and the PHY layer, etc. Set in DU.
  • the base station 2100 may include one or more radio frequency units (RUs), one or more DUs and one or more CUs.
  • the DU may include at least one processor 21013 and at least one memory 21014
  • the RU may include at least one antenna 21011 and at least one radio frequency unit 21012
  • the CU may include at least one processor 21022 and at least one memory 21021 .
  • the CU2102 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access systems of different access standards.
  • Access network (such as LTE network, 5G network or other network).
  • the memory 21021 and the processor 21022 can serve one or more single boards. That is to say, the memory and the processor can be separately provided on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • the DU2101 can be composed of one or more single boards.
  • Multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, or can support a wireless access network with different access standards (such as a 5G network). LTE network, 5G network or other network).
  • the memory 21014 and processor 21013 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • FIG. 22 is a schematic structural diagram of a communication apparatus 2200 .
  • the communication apparatus 2200 may be used to implement the methods described in the foregoing method embodiments, and reference may be made to the descriptions in the foregoing method embodiments.
  • the communication apparatus 2200 may be a chip, an access network device (such as a base station), or a terminal.
  • the communication device 2200 includes one or more processors 2201 .
  • the processor 2201 may be a general-purpose processor or a dedicated processor or the like. For example, it may be a baseband processor, or a central processing unit.
  • the baseband processor may be used to process communication protocols and communication data
  • the central processing unit may be used to control devices (eg, base stations, terminals, or chips, etc.), execute software programs, and process data of software programs.
  • the apparatus may include a transceiving unit for implementing signal input (reception) and output (transmission).
  • the device may be a chip, and the transceiver unit may be an input and/or output circuit of the chip, or a communication interface.
  • the chip can be used in a terminal or an access network device (such as a base station) or a core network device.
  • the apparatus may be a terminal or an access network device (such as a base station), and the transceiver unit may be a transceiver, a radio frequency chip, or the like.
  • the communication apparatus 2200 includes one or more processors 2201, and the one or more processors 2201 can implement the methods of the base station or the terminal in the embodiments shown in FIG. 6-FIG. 19 .
  • the communication device 2200 includes means for receiving the first threshold and the second threshold indication information from the base station, and performing data transmission (means), and for determining whether to perform beam recovery and The means (means) of the MAC CE that sends the beam recovery request.
  • the functions of the described components may be implemented by one or more processors. For example, it may be transmitted by one or more processors, by a transceiver, or by an input/output circuit, or by an interface of a chip. Reference may be made to the relevant descriptions in the foregoing method embodiments.
  • the communication apparatus 2200 includes means (means) for sending the first threshold and the second threshold indication information to the terminal and receiving the beam restoration request MAC CE, and means for performing beam restoration (means).
  • means (means) for sending the first threshold and the second threshold indication information to the terminal and receiving the beam restoration request MAC CE and means for performing beam restoration (means).
  • it may be received through a transceiver, or an input/output circuit, or an interface to a chip, through one or more processors.
  • the processor 2201 may also implement other functions.
  • the processor 2201 may also include instructions 2203, and the instructions may be executed on the processor, so that the communication apparatus 2200 executes the methods described in the foregoing method embodiments.
  • the communication apparatus 2200 may also include a circuit, and the circuit may implement the functions of the access network device or terminal in the foregoing method embodiments.
  • the communication device 2200 may include one or more memories 2202 having stored thereon instructions 2204 that are executable on the processor to cause the communication device 2200 to execute The method described in the above method embodiment.
  • data may also be stored in the memory.
  • Instructions and/or data may also be stored in the optional processor.
  • the one or more memories 2202 may store the first threshold value and the second threshold value indication information described in the foregoing embodiments, or other information involved in the foregoing embodiments.
  • the processor and the memory can be provided separately or integrated together.
  • the communication apparatus 2200 may further include a transceiver unit 2205 and an antenna 2206, or include a communication interface.
  • the transceiver unit 2205 may be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the device through the antenna 2206 .
  • the communication interface (not shown in the figure) can be used for the communication between the core network device and the access network device, or between the access network device and the access network device.
  • the communication interface may be a wired communication interface, such as an optical fiber communication interface.
  • the processor 2201 may be referred to as a processing unit, and controls a device (such as a terminal or a base station or an AMF).
  • a device such as a terminal or a base station or an AMF.
  • the present application also provides a communication system, which includes a combination of one or more of the foregoing one or more access network devices, and, one or more terminals, and, and core network devices.
  • processors in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware (eg, circuits), firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server or data center by means of wire, such as optical fiber, or wireless, such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the disclosed system, communication apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种波束失败恢复BFR方法和装置，该方法包括：终端接收第一门限值和第二门限值的指示信息，第二门限值用于判断接入网设备发生波束失败；终端对小区中与所述终端基于波束通信的一个或多个接入网设备进行波束失败实例次数统计；对波束失败实例次数大于或等于第一门限值，小于第二门限值的接入网设备进行波束恢复。采用本申请的方法和装置，可以进一步降低波束失败的可能性，提高网络的可靠性，避免小区中多个设备同时发生波束失败。

Description

波束失败恢复方法，装置及可读存储介质
本申请要求于2021年04月01日提交中国专利局、申请号为202110356892.9、申请名称为“波束失败恢复方法，装置及可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信技术，尤其涉及多传输点(multiple transmission reception point，mTRP)的波束失败恢复方法，装置，可读存储介质和系统。
背景技术
波束赋形技术用于将每个信号引导到终端接收器的最佳路径上，从而提高信号强度，避免信号干扰，改善通信质量。但是基于波束的传输链路比较容易被障碍物阻挡，因此引入了终端与多个接入网设备连接的mTRP技术，以增强可靠性和扩大覆盖范围。
但由于终端的移动性，或终端的姿态改变，会导致信道快速变化，原先建立的收发波束对的通信质量可能急剧下降，发生波束失败。因此对波束失败恢复技术的研究是十分重要的。
发明内容
本发明实施例提供一种波束失败恢复通信方法和装置，终端与小区中一个或多个接入网设备进行通信，通过在接入网设备发生波束失败前，对接入网设备提前进行波束恢复，并结合小区中与终端通信的接入网设备的波束情况，选择合适的发送波束恢复请求的接入网设备，从而减小网络中接入网设备波束失败的可能性，提高网络的可靠性。
第一方面，提供了一种通信方法，该方法的执行主体为终端，还可以为配置于终端的部件(芯片、电路或其它等)，包括：终端接收第一门限值和第二门限值的指示信息，所述终端与所在小区的一个或多个接入网设备基于波束进行数据通信并统计所述一个或多个接入网设备的波束失败实例次数，当接入网设备的波束失败实例次数大于或等于第二门限值时，所述接入网设备的所述波束处于波束失败状态；当所述接入网设备的波束失败实例次数大于所述第一门限值且小于所述第二门限值时，所述终端对所述接入网设备进行波束恢复。
上述实施方法中，终端对所在小区的接入网设备分别统计波束失败实例次数，当接入网设备的波束失败实例次数大于或等于第一门限且小于第二门限时，即进行恢复，以期通过在接入网设备发生波束失败之前，提前进行波束恢复，从而减小了接入网设备发生波束失败的可能性，进一步减小了小区中接入网设备发生波束失败的可能性，提高网络的可靠性和业务的连续性。
结合第一方面，在第一方面的第一种可能的实施方式中，所述统计所述一个或多个接入网设备的波束失败实例次数包括：所述终端通过波束失败实例计数器和波束失败检测计时器，分别对所述一个或多个接入网设备的每一个接入网设备统计波束失败实例次数。
通过对所述一个或多个接入网设备的每一个接入网设备设置波束失败实例计数器和波束失败检测计时器，从而使终端能够对每一个与所述终端通信的接入网设备统计波束失败实例次数，进而能够对每一个与所述终端通信的接入网设备判断是否需要进行波束恢复。
结合第一方面，或，第一方面的第一种可能的实施方式，在第一方面的第二种可能的实 施方式中，所述终端根据所述第一小区的接入网设备的波束状态进行波束恢复包括：所述终端对该接入网设备进行候选波束寻找，以获得波束恢复请求媒体接入控制元素MAC CE，所述波束恢复请求MAC CE指示所述接入网设备的波束恢复信息；所述终端根据以下内容的一项确定发送波束恢复请求MAC CE的目标接入网设备：所述一个或多个接入网设备的参考信号接收功率RSRP，所述终端收到的所述小区的上行授权，或，所述一个或多个接入网设备的波束失败实例次数；所述终端向所述目标接入网设备发送所述波束恢复请求MAC CE，并在接收目标接入网设备的波束恢复响应后，判断波束恢复完成。
通过上述实施方式，通过波束恢复请求MAC CE对接入网设备进行波束恢复，可以减少接入网设备的波束恢复所需时间，提高波束恢复的效率和网络的可靠性，并且，选择合适的发送波束恢复请求MAC CE的目标接入网设备，可以提高波束恢复请求MAC CE送达到网络侧的成功率，从而提高波束恢复的成功率。
结合第一方面的第二种可能的实施方式，在第一方面的第三种可能的实施方式中，所述波束恢复请求MAC CE至少包括：所述小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元至少包括以下内容的一项：小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示接入网设备的波束恢复信息。
结合第一方面的第三种可能的实施方式，在第一方面的第四种可能的实施方式中，所述小区波束恢复信息单元包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元至少包括以下内容的一项：可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备；或，波束失败指示BF域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备是否需要进行波束恢复。
通过上述实施方式，在波束恢复请求MAC CE中，指示需要进行波束恢复的接入网设备的波束恢复信息，从而能够快速的指示网络设备进行波束恢复。
结合第一方面，或，第一方面的第一种至第二种可能的实施方式，在第一方面第五种可能的实施方式中，包括：所述终端接收去激活接入网设备的指示；所述终端清零所述接入网设备对应的波束失败实例计数器。
结合第一方面，或，第一方面的第一种至第二种可能的实施方式，在第一方面第五种可能的实施方式中，包括：所述终端接收激活接入网设备的指示；所述终端开始统计所述接入网设备波束失败实例的次数。
通过上述实施方式，接入网设备可以根据波束失败的情况，对接入网设备和终端之间的通信进行控制，避免终端与经常发生波束失败的接入网设备通信，从而降低终端的能耗。
第二方面，提供一种通信方法，该方法的执行主体可以为接入网设备，或者配置于接入网设备中的部件(芯片、电路或其它等)，包括：向终端发送第一门限值和第二门限值的指示信息，接入网设备基于波束与所述终端进行数据通信，当接入网设备的波束失败实例次数大于或等于第二门限值时，所述接入网设备的所述波束处于波束失败状态；当所述接入网设备的波束失败实例次数大于所述第一门限值且小于所述第二门限值时，接入网设备接收所述终端指示的波束恢复信息。
结合第二方面，第二方面的第一种可能的实施方式中，当所述接入网设备的波束失败实 例次数大于所述第一门限值且小于所述第二门限值时，接入网设备接收所述终端指示的波束恢复信息包括：所述波束失败实例次数大于所述第一门限值且小于所述第二门限值的接入网设备接收所述终端指示的波束恢复信息；或，所述波束失败实例次数大于所述第一门限值且小于所述第二门限值的接入网设备以外的其他接入网设备接收所述终端指示的波束恢复信息。
结合第二方面，及第二方面的第一种可能的实施方式，在第二方面的第二种可能的实施方式中，所述接入网设备接收所述终端指示的波束恢复信息包括：所述接入网设备接收波束恢复请求MAC CE。
结合第二方面，及第二方面的第一种至第二种可能的实施方式，第二方面的第三种可能的实施方式中，包括：所述接收所述终端指示的波束恢复信息的接入网设备为第一接入网设备，第一接入网设备向终端发送波束恢复响应；若所述波束恢复请求MAC CE包含第二接入网设备的波束恢复信息，所述第一接入网设备将所述波束恢复信息，或，所述波束恢复请求MAC CE转发至所述第二接入网设备。
结合第二方面的第二种至第三种可能的实施方式，第二方面的第四种可能的实施方式中，所述波束恢复请求MAC CE包括至少一个小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元至少包括以下内容的一项：小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示接入网设备的波束恢复信息。
结合第二方面的第四种可能的实施方式，第二方面的第五种可能的实施方式中，所述小区波束恢复信息单元还包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元至少包括以下内容的一项：可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备；或，波束失败指示BF域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备是否需要进行波束恢复。
结合第二方面，及第二方面的第一种至第五种可能的实施方式，第二方面的第六种可能的实施方式，包括：向所述终端发送去激活接入网设备的指示；所述接入网设备停止与所述终端通信。
结合第二方面，及第二方面的第一种至第五种可能的实施方式，第二方面的第七种可能的实施方式，包括：向所述终端发送激活接入网设备的指示；所述接入网设备开始与所述终端进行数据传输。
第三方面，提供了一种通信方法，该方法的执行主体为终端，还可以为配置于终端的部件(芯片、电路或其它等)，包括：
确定波束恢复请求媒体接入控制控制元素MAC CE；
向目标接入网设备发送所述波束恢复请求MAC CE；
其中，所述波束恢复请求MAC CE至少包括所述终端设备所在的一个或多个小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元包括以下内容：
小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；及
接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示所述接入网 设备的波束恢复信息。
第四方面，提供一种通信方法，该方法的执行主体可以为接入网设备，比如目标接入网设备，或者配置于接入网设备中的部件(芯片、电路或其它等)，包括包括：
接收来自终端的波束恢复请求MAC CE；
其中，所述波束恢复请求MAC CE至少包括所述终端设备所在的一个或多个小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元包括以下内容：
小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；及
接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示所述接入网设备的波束恢复信息。
结合第三方面或第四方面，作为第三方面或第四方面的第一种可能的实施方式，所述小区波束恢复信息单元还包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元包括以下内容的一项或多项：
可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；
候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；或，
接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备。
结合第三方面或第四方面或第三方面或第四方面的第一种可能的实施方式，作为第三方面或第四方面的第二种可能的实施方式，所述目标接入网设备为与所述终端进行数据通信的与所述一个或多个小区对应的一个或多个接入网设备中的一个。
结合第三方面或第四方面的第二种可能的实施方式，作为第三方面或第四方面的第三种可能的实施方式，所述目标接入网设备为所述终端收到上行授权所对应的小区的接入网设备。
结合第三方面或第四方面或第三方面或第四方面的任一种可能的实施方式，作为第三方面或第四方面的第四种可能的实施方式，所述小区指示C域所指示的小区包括特殊小区SpCell。
结合第三方面或第四方面的第四种可能的实施方式，作为第三方面或第四方面的第五种可能的实施方式，对应所述特殊小区SpCell的所述小区指示C域中的C0比特位。
结合第三方面或第四方面或第三方面或第四方面的任一种可能的实施方式，作为第三方面或第四方面的第六种可能的实施方式，所述小区指示C域包括C0～C7 8个比特位或者C0～C31 32个比特位，每一个比特位分别对应一个小区，对于每一个比特位，若取值为1，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中上报了需要进行波束恢复的接入网设备的波束恢复信息；若取值为0，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中未上报需要进行波束恢复的接入网设备的波束恢复信息。
结合第三方面或第四方面的任一种可能的实施方式，作为第三方面或第四方面的第七种可能的实施方式，所述AC域占用1比特，AC域值为1时，表示终端对于对应的接入网设备已找到可用候选波束；AC域值为0时，表示终端对于对应的接入网设备未找到可用候选波束。
结合第三方面或第四方面或第三方面或第四方面的任一种可能的实施方式，作为第三方面或第四方面的第八种可能的实施方式，所述接入网设备波束恢复信息单元数量指示N域占用8比特位或32比特位，每个比特位分别对应一个小区，对于每一个比特位，若取值为0，表示该比特对应的小区的接入网设备波束恢复信息单元的数量为1，若取值为1时表示该比 特对应的小区的接入网设备波束恢复信息单元的数量为2。
结合第三方面或第三方面的任一种可能的实施方式，作为第三方面的第九种可能的实施方式，还包括：
发送所述波束恢复请求MAC CE前，对所述一个或多个小区的所述一个或多个接入网设备进行候选波束寻找，以确定所述波束恢复请求MAC CE；
发送所述波束恢复请求MAC CE，并在接收所述目标接入网设备的波束恢复响应后，判断波束恢复完成。
结合第三方面或第三方面的任一种可能的实施方式，作为第三方面的第九种可能的实施方式，还包括：
发送所述波束恢复请求MAC CE前，对所述一个或多个小区的所述一个或多个接入网设备的每一个接入网设备统计波束失败实例次数，当接入网设备的波束失败实例次数大于第一门限值且小于第二门限值时，确定对所述接入网设备进行波束恢复。
结合第三方面的第九种可能的实施方式，作为第三方面的第十种可能的实施方式，还包括：
当接入网设备的波束失败实例次数大于或等于第二门限值时，确定所述接入网设备的所述波束处于波束失败状态。
结合第三方面的第九种或第十种可能的实施方式，作为第三方面的第十一种可能的实施方式，还包括：
接收所述第一门限值和所述第二门限值的指示信息。
结合第三方面的第九种至第十一种中任一种可能的实施方式，作为第三方面的第十二种可能的实施方式，所述波束失败实例次数的统计基于波束失败实例计数器和波束失败检测计时器。
本申请实施例第五方面提供了一种通信装置，本申请提供的装置具有实现上述方法方面中基站或终端行为的功能，其包括用于执行上述方法方面所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件实现，或者通过硬件和软件结合来实现。
在一种可能的设计中，上述装置包括一个或多个处理器，进一步的，可以包括通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中基站相应的功能。例如，根据波束恢复请求中的指示信息进行波束恢复。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，向终端发送第一门限值和第二门限值指示消息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为基站，下一代基站(Next Generation NodeB，gNB)或传输点(Transmitting and Receiving Point，TRP)，分布式单元(distributed unit，DU)或集中式单元(centralized unit，CU)等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为芯片。所述通信单元可以为芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器收发信号，该存储器用于存储计算机程序，该处理器用于运行存储器中的计算机程序，使得该装置执行第二方面或第四方面中基站完成的方法。
在一种可能的设计中，上述装置包括一个或多个处理器，进一步的，可以包括通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中终端相应的功能。例如，统计接入网设备的波束恢复实例次数等。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，接收第一门限值和第二门限值的指示消息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为智能终端或可穿戴设备等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为芯片。所述通信单元可以为芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行第一方面或第三方面中终端完成的方法。
第六方面，提供了一种系统，该系统包括上述基站。
可选的，该系统进一步包括上述终端。
第七方面，提供了一种可读存储介质或程序产品，用于存储程序，该程序包括用于执行第一方面至第四方面中任一方面的方法的指令。
第八方面，提供了一种可读存储介质或程序产品，用于存储程序，当所述程序在计算机上运行时，使得计算机执行第一方面至第四方面中任一方面中的方法的指令。
应当理解的是，本申请的第二方面至第八方面与本申请的第一方面的技术方案相对应，各方面及对应的可行实施方式所取得的有益效果相似，不再赘述。
附图说明
图1为本申请实施例提供的一种通信系统的示意图；
图2为本申请实施例提供的一种多个DU共用一个CU的网络架构示意图；
图3为本申请实施例提供的一种CU和DU的协议层功能的示意图；
图4为本申请实施例提供的一种RRC状态转变示意图；
图5为本申请实施例提供的一种小区内多个TRP的示意图；
图6为本申请实施例提供的一种可能的实施方式的流程图；
图7为本申请实施例提供的一种可能的实施方式的流程图；
图8为本申请实施例提供的一种可能的波束恢复的流程图；
图9a为本申请实施例提供的一种可能的候选波束寻找的流程图；
图9b为本申请实施例提供的一种可能的候选波束寻找的流程图；
图9c为本申请实施例提供的一种可能的候选波束寻找的流程图；
图10为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图11为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图12为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图13为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图14为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图15为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图16为本申请实施例提供的一种可能的实施方式的流程图；
图17为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图18为本申请实施例提供的一种可能的波束恢复请求MAC CE的示意图；
图19为本申请实施例提供的一种可能的实施方式的流程图；
图20为本申请实施例提供的一种终端的结构示意图；
图21为本申请实施例提供的一种接入网设备的结构示意图；
图22为本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对动作、装置、单元或模块进行区分。例如，第一信息和第二信息仅仅是为了区分不同的信息，并不对其先后顺序进行限定。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例中，“至少一项(个)”是指一个或者多个，“多个”是指两个或两个以上。“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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系，但也可能表示的是一种“和/或”的关系，具体可参考前后文进行理解。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统，第五代(5th generation，5G)系统，如新一代无线接入技术(new radio access technology，NR)，多种系统融合的网络，物联网系统，车联网系统，以及未来的通信系统，如6G系统等。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例中不同基站可以为具有不同的标识的基站，也可以为具有相同的标识的被部署在不同地理位置的基站。部分场景中，在基站被部署前，基站不知道其是否会涉及本申请实施例所应用的场景，基站或基带芯片，可以在部署前支持本申请实施例所提供的方法。部分场景中，也可以通过部署后的升级或加载，来支持本申请实施例所提供的方法。可以理解的是，前述具有不同标识的基站可以对应于基站标识，也可以对应于小区标识或者其他标识。
本申请实施例中部分场景以无线通信网络中NR网络的场景为例进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
为便于理解本申请实施例，首先以图1中示出的通信系统为例详细说明适用于本申请实 施例的通信系统。图1示出了适用于本申请实施例的通信方法的通信系统的示意图。如图1所示，该通信系统100包括接入网设备101(gNB1和gNB2)，用户设备(user equipment，UE)102，核心网设备(core network，CN)103。接入网设备101可配置有多个天线，UE102也可配置有多个天线。接入网设备和核心网设备可以统称为网络设备，或，网络侧设备，接入网和核心网可以统称为网络侧。
应理解，接入网设备和终端还可包括与信号发送和接收相关的多个部件(例如，处理器、调制器、复用器、解调器或解复用器等)。
其中，接入网设备是指将终端接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)，又可以称为基站。接入网设备为具有无线收发功能的设备或可设置于该设备的芯片，该设备可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(nodeB)、演进型基站(evolved nodeB，eNB)、gNB、中继站、接入点、发送接收点(transmission reception point，TRP)、发射点(transmitting point，TP)、主站(master eNodeB，MeNB)、辅站(secondary eNodeB，SeNB)、多制式无线(multi-standard radio，MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access point，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(remote radio unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、集中式单元(central unit，CU)、分布单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及D2D、V2X、M2M通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
该设备可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中，接入网设备(例如：gNB)可以包括BBU和RRU。部分基带功能，比如波束赋形功能，可以在BBU中实现，或者，在RRU中实现。BBU和RRU之间的连接接口可以为通用公共无线接口(common public radio interface,CPRI)，或者，增强的通用公共无线接口(enhance CPRI,eCPRI)。在另一些部署中，接入网设备可以包括CU和DU。CU和DU可以理解为是对基站从逻辑功能角度的划分，CU和DU在物理上可以分离，也可以部署在一起。例如，多个DU可以共用一个CU或者一个DU也可以连接多个CU，CU和DU之间可以通过F1接口相连。示例性的，图2为本申请实施例提供的一种多个DU共用一个CU的网络架构示意图，如图2所示，核心网和RAN互连通信，RAN中的基站分离成CU和DU，多个DU共用一个CU。图2所示的网络架构可以应用于5G通信系统，也可以与LTE系统共享一个或多个部件或资源。包括CU节点和DU节点的接入网设备将协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。作为一种实现方式，如图3所示，CU部署有协议栈中的无线资源控制(radio resource control，RRC)层，分组数据汇聚层协议(packet data convergence protocol，PDCP)层，以及业务数据适应协议(service data adaptation protocol，SDAP)层；DU部署有协议栈中的无线链路控制(radio link control，RLC)层，媒体接入控制(medium access control，MAC)层，以及物理层(physical layer，PHY)。从而，CU具有RRC、PDCP和SDAP的处理能力。DU 具有RLC、MAC和PHY的处理能力。可以理解的是，上述功能的切分仅为一个示例，不构成对CU和DU的限定。
CU的功能可以由一个实体来实现也可以由不同的实体实现。例如，可以对CU的功能进行进一步切分，例如，将控制面(control plane，CP)和用户面(user plane，UP)分离，即CU的控制面(CU-CP)和CU用户面(CU-UP)。例如，CU-CP和CU-UP可以由不同的功能实体来实现，所述CU-CP和CU-UP可以与DU相耦合，共同完成基站的功能。一种可能的方式中，CU-CP负责控制面功能，主要包含RRC和PDCP控制面PDCP-C。PDCP-C主要负责控制面数据的加解密，完整性保护，数据传输等中的一项或多项。CU-UP负责用户面功能，主要包含SDAP和PDCP用户面PDCP-U。其中SDAP主要负责将核心网的数据进行处理并将数据流(flow)映射到承载。PDCP-U主要负责数据面的加解密，完整性保护，头压缩，序列号维护，数据传输等中的一项或多项。其中CU-CP和CU-UP通过E1接口连接。CU-CP代表接入网设备通过Ng接口和核心网连接。CU-CP通过F1-C(控制面)和DU连接。CU-UP通过F1-U(用户面)和DU连接。可以理解的是，接入网设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为无线接入网RAN中的设备，也可以将CU划分为核心网CN中的设备，在此不做限制。
终端也可以称为终端、用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动终端(mobile terminal，MT)、移动台(mobile station，MS)、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。终端是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机。本申请的实施例中的终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、可穿戴设备、移动互联网设备(mobile internet device，MID)、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。本申请中由终端实现的方法和步骤，也可以由可用于终端的部件(例如芯片或者电路)等实现。本申请中将前述终端及可设置于前述终端的部件(例如芯片或者电路)统称为终端。可选的，终端也可以用于充当基站。例如，终端可以充当调度实体，其在V2X或D2D等中的终端之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。
核心网设备，是指为终端提供业务支持的CN中的设备。目前，一些核心网设备的举例为：接入和移动性管理功能(access and mobility management function，AMF)实体、会话管理功能(session management function，SMF)实体、用户面功能(user plane function，UPF)实体等等，此处不一一列举。其中，所述AMF实体可以负责终端的接入管理和移动性管理；所述SMF实体可以负责会话管理，如用户的会话建立等；所述UPF实体可以是用户面的功能实体，主要负责连接外部网络。需要说明的是，本申请中实体也可以称为网元或功能实体，例如，AMF实体也可以称为AMF网元或AMF功能实体，又例如，SMF实体也可以称为SMF网元或SMF功能实体等。
在该通信系统100中，gNB1和gNB2均可以与多个UE通信。但应理解，与gNB1通信的UE和与gNB2通信的UE可以是相同的，也可以是不同的。图1中示出的UE 102可同时与gNB1和gNB2通信，但这仅示出了一种可能的场景，在某些场景中，UE可能仅与gNB1 或gNB2通信，本申请对此不做限定。应理解，图1仅为便于理解而示例的简化示意图，该通信系统中还可以包括其他接入网设备，终端，或者核心网设备，图1中未予以画出。在NR和LTE系统中，UE的无线资源控制(radio resource control，RRC)状态包括连接态(RRC_CONNECTED)、空闲态(RRC_IDLE)、去激活态(RRC_INACTIVE，或者称为第三态)。其中，RRC去激活(inactive)状态是终端通过基站连接到5G核心网中新引入的状态，该状态介于连接态和空闲态之间。在RRC_INACTIVE状态下，终端与接入网设备之间没有RRC连接，但保持接入网设备与核心网设备的连接，终端保存有建立/恢复连接所必须的全部或部分信息。因而在RRC_INACTIVE状态下，终端在需要建立连接时，可以根据保存的相关信息，快速地与接入网设备建立或恢复RRC连接。
当UE处于RRC_CONNECTED状态时，UE与基站以及核心网都已建立链路，当有数据到达网络时可以直接传送到UE；当UE处于RRC_INACTIVE状态时，表示UE之前和基站以及核心网建立过链路，但是UE到基站这一段链路被释放，但是基站会存储UE的上下文，当有数据需要传输时，基站可以快速恢复这段链路；当UE处于RRC_IDLE状态时，UE与基站和网络之间都没有链路，当有数据需要传输时，需要建立UE到基站及核心网的链路。
示例性的，图4为本申请实施例提供的一种RRC状态转变示意图，如图4所示，在RRC_IDLE态时，UE可以接入基站，接入过程中或接入基站后UE可以和基站进行RRC建立过程，使得UE的状态从RRC_IDLE态转换为RRC_CONNECTED态。在RRC_IDLE态时，UE从基站接收到寻呼消息后或者由UE的高层触发后，UE可以发起RRC建立过程，试图和基站建立RRC连接以进入RRC_CONNECTED态。UE是RRC_IDLE态时，没有UE和基站之间的RRC连接。当UE处于RRC_CONNECTED状态时，基站可以通过释放RRC过程，例如向UE发送RRC释放(RRCRelease)消息，使得UE的状态从RRC_CONNECTED态转变为RRC_IDLE状态或RRC_INACTIVE状态。当UE处于RRC_INACTIVE状态时，UE可以通过释放RRC连接而进入RRC_IDLE状态，或者，UE可以通过恢复RRC连接而进入RRC_CONNECTED状态。
为了便于理解，首先对本申请实施例所涉及的通信名词或术语进行解释说明，该通信名词或术语，也作为本申请发明内容的一部分。
一、多小区传输
小区，也称蜂窝小区，是指在蜂窝移动通信系统中，其中的一个基站或基站的一部分(扇形天线)所覆盖的区域，在这个区域内终端可以通过基站分配的传输资源与接入网设备进行通信。
终端可以同多个接入网设备存在通信连接并收发数据，所述多个接入网设备可以服务于不同的小区，示例性的，以双连接(dual-connectivity，DC)和载波聚合(carrier aggregation，CA)为例进行简要介绍。
在DC的一种实施方式中，终端同时与两个接入网设备存在通信连接并可收发数据。该两个接入网设备(例如基站)之中，可以有一个接入网设备负责与该终端交互无线资源控制消息，并负责和核心网控制平面实体交互，那么，该接入网设备可以称之为主节点(master node，MN)，例如，主节点可以是MeNB或者MgNB，不限定于此；则另一个接入网设备可以称之为辅节点(secondary node，SN)，例如，辅节点可以是SeNB或者SgNB，不限定于此。其中，主节点为控制面锚点，即终端与主节点建立RRC连接，且主节点与核心网之间建立控制面连接。在DC中，主节点中的多个服务小区组成主小区组(master cell group，MCG)，包括一个主小区(primary cell，PCell)和可选的一个或多个辅小区(secondary cell，SCell)。辅节点中 的多个服务小区组成辅小区组(secondary cell group，SCG)，包括一个主辅小区(primary secondary cell，PSCell)和可选的一个或多个SCell。服务小区是指网络配置给终端进行上下行传输的小区。
在CA的一种实施方式中，为了高效地利用零碎的频谱，通信系统可以支持不同载波单元之间的聚合，将2个或2个以上的载波聚合在一起以支持更大的传输带宽。CA技术中，终端可以配置多个载波单元(component carrier，CC，或者称，成员载波、组成载波、载波等)，每个CC可以对应于一个独立的小区，因此也可以将一个CC等同于一个小区。例如，主小区PCell对应主CC(或者称，主载波)，可以是为终端进行初始连接建立的小区，或进行RRC连接重建的小区，或是在切换(handover)过程中指定的主小区。辅小区SCell对应辅CC(或者称，辅载波)，可以是在RRC重配置时添加的，用于提供额外的无线资源的小区。对于处于连接态的终端来说，若未配置载波聚合，则该终端有一个服务小区；若配置了载波聚合，则该终端可以有多个服务小区(serving cell)，可以称为服务小区集合。例如，上文所述的主小区和辅小区组成了该终端的服务小区(serving cell)集合。换句话说，配置载波聚合的场景下，服务小区集合包括至少一个主小区和至少一个辅小区。或者说，配置了载波聚合的终端可与1个PCell和多个SCell进行数据传输。
在通信系统中可以同时使用DC技术和CA技术。在DC技术中，PCell和PsCell可以称为特殊小区(special cell，SpCell)；在CA技术中，PCell可以称为SpCell。即对于终端，服务小区由所有的SpCell和所有的SCell组成。
二、多TRP传输
终端设备可以同一个小区内多个TRP连接并进行通信。
基站是固定在一个地理位置的无线电发送机。所述多个TRP在物理上实质可以是一个基站的一组天线。如图5所示，基站的架构可以是一个基带处理单元在一个地理位置，它连接了多个地理位置的多个TRP。其中，每个TRP可由射频处理单元以及天线组成，例如图5所示，多个TRP所在的地理位置上可各自有一个射频处理单元以及一组天线。该基带处理单元与传输点的射频处理单元之间可以用光纤连接。TRP之间可以通过理想回传(ideal backhaul)或者非理想回传(non-ideal backhaul)进行通信。
小区可以是基站的多个TRP所覆盖的区域。小区内有多个TRP，也可以理解为，终端与所在小区的基站进行通信时，可以通过多个TRP进行通信。本申请实施例中，按照TRP所服务的小区进行划分，即若TRP服务于第一小区，则称所述TRP为第一小区的TRP。
对于多个TRP的场景，根据下行控制信息(downlink control information,DCI)，可以将多TRP传输分为两种类型：多DCI的多TRP传输，或单DCI的多TRP传输。终端可以根据网络设备配置的参数识别多TRP的传输类型，以NR系统为例，可以通过RRC参数控制资源集资源池索引(control-resource set pool index，CORESETPoolIndex)进行识别。对于多DCI的多TRP传输，不同TRP的调度信息承载在不同CORESETPoolIndex所指示的物理下行控制信道(physical downlink control channel，PDCCH)资源中，1个PDCCH调度1个TRP的物理下行共享信道(physical downlink shared channel，PDSCH)。对于单DCI的多TRP传输，网络设备通过DCI中的传输配置指示(transmission configuration indication,TCI)、时域资源分配(time domain resource assignment,TDRA)和天线端口指示终端与多个TRP进行数据传输。
三、波束(beam)
在通信系统中，会利用高频段进行通信传输。高频通信的一个主要问题是信号能量随传 输距离急剧下降，导致信号传输距离短。为了克服这个问题，高频通信采用波束成形技术，通过大规模天线阵列进行加权处理，将信号能量集中在一个较小的范围内，形成一个类似于光束一样的信号(称为波束)，从而提高传输距离。
波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束成形技术或者其他技术手段。波束成形技术可以具体为数字波束成形技术，模拟波束成形技术，混合波束成形技术等。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。
波束包括发送波束(也可以称为发射波束)和接收波束。发送波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指天线阵列对无线信号在空间不同方向上进行加强或削弱接收的分布。
波束可以理解为空间滤波器(spatial filter)或空间参数(spatial parameters)。用于发送信号的波束可以称为发送波束(transmission beam，即Tx beam)、空间发送滤波器(spatial domain transmit filter)或空间发射参数(spatial domain transmit parameter)。用于接收信号的波束可以称为接收波束(reception beam，即Rx beam)，空间接收滤波器(spatial domain receive filter)或空间接收参数(spatial domain receive parameter)。
当前，小区中存在多个接入网设备，例如TRP，的场景下，尚没有完善的波束恢复的机制。为了解决上述问题，本发明提供了一种方法，该方法包括：终端接收第一门限值和第二门限值的指示信息；终端对所在小区的一个或多个与所述终端进行数据通信的接入网设备进行波束失败实例统计；对波束失败实例次数大于或等于第一门限值并且小于第二门限值的所述接入网设备进行波束恢复；终端选择波束恢复请求MAC CE发送的目标接入网设备发送所述波束恢复请求MAC CE。通过上述方法，可以减小接入网设备发生波束失败的可能性，提高网络的可靠性。也可以减小SpCell的与终端进行数据通信的接入网设备波束全部失败而需要通过时间较长的随机接入进行波束恢复的可能性。
下面以终端在所在小区中与一个或多个TRP建立连接并进行数据传输为例进行介绍，需要说明的是，本发明中以TRP作为接入网设备进行介绍，对接入网设备的具体类型并不限定。
如图6所示，提供了一种可能的波束恢复实施方法，包括：
S601：终端接收第一门限值和第二门限值的指示信息。
所述终端至少与一个小区建立连接，并与所述小区中，一个或多个TRP进行数据通信。
终端接收第一门限值和第二门限值的指示信息，第一门限值和第二门限值可用于判定所述TRP的波束状态，所述TRP的波束状态包括以下内容：若波束失败实例次数大于或等于第二门限值，则该TRP的波束状态为波束失败；若波束失败实例次数大于或等于第一门限值，小于第二门限值，则该TRP的波束状态为波束预失败；若波束失败实例次数小于第一门限值，则该TRP的波束状态为波束正常。在一种可能的实施方式中，网络设备根据小区中的业务类型对传输可靠性的要求对第一门限值和第二门限值进行设置。
网络设备可以通过不同的指示消息，或，通过同一个指示消息向终端发送第一门限值和第二门限值。示例性的，所述指示消息可以通过RRC信令、DCI，或MAC CE中的一项携带。
第一门限值和第二门限值的指示信息，可以为具体的数值，也可以在协议中约定门限值的索引，通过索引指示具体数值。示例性的，如表1所示，提供一种可能的索引值-门限值对应关系，网络侧可以向终端指示第一门限值为“01”，即表示第一门限值为4，第二门限值为“11”，即表示第二门限值为16。
表1索引值-门限值对照表样例
索引值 门限值
00 2
01 4
10 8
11 16
可以理解的是，所述终端还可以接收其他波束失败相关的配置信息，包括现有技术中的相关配置，在此不予赘述。
S602：终端统计与该终端进行数据通信的TRP的波束失败实例的次数。
在实施例中，终端与所在小区的一个或多个TRP基于波束进行数据通信。其中，数据通信可以是数据业务的通信，也可以是非数据业务的控制信息通信。
终端侧按照基站的配置对波束的链路质量进行测量，并将测量结果与基站配置判定波束失败实例的测量门限进行比较，从而判断本次测量中当前波束是否为波束失败实例。
终端通过波束失败实例计数器和波束失败检测计时器，对小区中进行数据通信的每一个TRP进行波束失败实例次数统计。例如，若终端判断TRP的波束为波束失败实例，则该TRP的波束失败实例计数器加1，并重新启动波束失败检测计时器；当TRP的波束失败检测计时器超时时，或，终端接收到TRP的波束恢复请求所对应的波束恢复响应时，清零该TRP对应的波束失败计数器，并重新启动所述波束失败检测计时器。需要说明的是，终端通过波束失败实例计数器与波束失败检测计时器对波束失败实例次数的统计的具体实施方式，可以根据现有技术实施，在此不予赘述。
当一个TRP的波束失败实例计数器的值超过第二门限值时，终端即可判定该TRP的波束状态为波束失败。
S603：终端对波束失败实例次数大于或等于第一门限且小于第二门限的TRP进行波束恢复。
在实施例中，终端可以先判断TRP的波束状态。比如，终端将进行数据通信的TRP的波束失败实例次数分别与第一门限值和第二门限值进行比较，当TRP的波束失败实例次数大于第一门限值且小于所述第二门限值时，终端判断该波束处于预失败状态，并对波束状态为波束预失败的TRP进行波束恢复。
通过上述实施方法，通过引入第一门限值，可以对TRP波束性能较差，可能发生波束失败的TRP提前进行波束恢复，从而提高网络的可靠性。对于SpCell，可以降低波束失败导致需要进行随机接入恢复波束的可能性。
示例性的，下面以终端与小区中的TRP1和TRP2连接并通信为例，提供一种可能的实施方法，如图7所示，包括：
S701：终端接收网络设备发送的第一门限值和第二门限值的指示信息。
可参考S601中相关内容，不予赘述。
S702：终端对TRP1、TRP2分别统计波束失败实例次数。
终端通过第一波束失败实例计数器和第一波束失败检测计时器统计TRP1的波束失败实例次数，通过第二波束失败实例计数器和第二波束失败检测计时器统计TRP2的波束失败实例次数。
S703：终端对波束失败实例次数大于或等于第一门限，且小于第二门限的TRP进行波束 恢复。
可选的，终端将TRP1的波束失败实例次数与第一门限值和第二门限值进行比较，得到TRP1的波束状态；并将TRP2的波束失败实例次数与第一门限值和第二门限值进行比较，得到TRP2的波束状态。
具体的，终端对波束失败实例次数大于或等于第一门限，且小于第二门限的TRP通过发送波束恢复请求MAC CE进行波束恢复，如图8所示有如下可能的实施方式。
S801：终端判断需要进行波束恢复的TRP，对所述TRP进行候选波束寻找。
终端按照基站的配置对需要进行波束恢复的TRP的所有波束进行测量，若波束的测量结果大于或等于基站配置的候选波束判定门限值，则判断该波束可以作为候选波束。在对TRP的所有波束进行测量和与候选波束判定门限进行比较后，即完成对该TRP的候选波束的寻找过程，波束恢复请求MAC CE中可以指示所述完成候选波束寻找的TRP的波束恢复信息。
S802：终端选择目标TRP发送波束恢复请求MAC CE。
终端发送波束恢复请求MAC CE有如下可能的实施方式。
在一种可能的实施方式中，终端获得波束恢复请求MAC CE所需的信息后，通过收到的所述小区中第一个能够发送所述波束恢复请求MAC CE的上行授权信息中指示的上行资源，发送波束恢复请求MAC CE。
在一种可能的实施方式中，终端对进行通信的TRP的信号进行测量，选择信号较好的TRP作为波束恢复请求MAC CE发送的目标TRP，进而通过目标TRP的上行资源发送所述波束恢复请求MAC CE。例如，终端获得TRP1和TRP2CSI-RS RSRP测量值，TRP1的CSI-RS RSRP测量值大于TRP2的CSI-RS RSRP测量值，判断TRP1的信号较好，将TRP1作为目标TRP。终端设备根据TRP1对应的CORESETPoolIndex值，得到TRP1对应的CORESET，在获得所述CORESET里检测到PDCCH中的上行授权信息后，根据所述上行授权信息中指示的上行资源，发送波束恢复请求MAC CE。可选的，终端还可以对终端所在的其他小区的TRP信号进行测量，选择信号较好的其他小区的TRP作为波束恢复请求MAC CE发送的目标TRP。
在一种可能的实施方式中，终端根据TRP的波束状态选择目标TRP，例如，当TRP1波束状态为波束失败，TRP2波束状态为波束正常，可以直接选择TRP2作为目标TRP。
S803：目标TRP接收波束恢复请求MAC CE。
目标TRP接收波束恢复请求MAC CE。
目标TRP根据所述波束恢复请求MAC CE中的指示进行波束恢复。若波束恢复请求MAC CE中的波束恢复信息所对应的TRP不是所述目标TRP，目标TRP将所述波束恢复请求MAC CE，或，所述波束请求MAC CE中的所述波束恢复信息，通过理想回程或非理想回程转发至所述波束恢复信息所对应的TRP。
S804：向终端发送波束恢复响应。
所述波束恢复响应，在一种可能的实施方法中可以参考现有技术的实施方式，例如，将TRP接收波束恢复请求MAC CE后向终端发送的指示新传的上行授权作为波束恢复响应，所述上行授权中指示的HARQ进程和终端传输上述波束恢复请求MAC CE的HARQ进程相同。
在一种可能的实施方法中，由目标TRP向终端发送波束恢复响应；在另一种可能的实施方式中，在协议中约定，或，由目标TRP指示至少一个需要进行波束恢复的TRP向终端发送波束恢复响应，目标TRP向发送波束恢复响应的TRP转发波束恢复相关信息时，还需转发发送波束恢复响应所需的HARQ信息。
终端收到波束恢复响应后，判断波束恢复完成。
需要说明的是，若小区中所有TRP发生波束失败时，对于SpCell，通过随机接入的方式进行波束恢复；对于SCell，可以参考S801-S804的内容，通过其他小区中波束正常或波束预失败的TRP发送波束恢复请求MAC CE。
通过上述方法，对波束预失败的TRP进行波束恢复，可以防止小区中突发多个TRP或全部TRP发生波束失败的情况，从而提高业务的连续性。对于SpCell，可以减少全部TRP发生波束失败而需要通过耗时较长的随机接入方式进行波束恢复的可能性。具体的，所述终端判断需要进行波束恢复的TRP，对所述TRP进行候选波束寻找，包括如下可能的实施方式。
如图9a所示，在一种可能的实施方式中，当仅一个TRP的波束失败实例次数大于或等于第一门限值且小于第二门限值时，对该TRP进行波束恢复，包括：
S901a：终端判断TRP1的波束失败实例次数大于或等于第一门限值且小于第二门限值，TRP2的波束失败实例次数小于第一门限值。
S902a：终端对TRP1进行候选波束寻找。
如图9b所示，在一种可能的实施方式中，当小区中与终端通信的多个TRP的波束失败实例次数大于或等于第一门限值且小于第二门限值时，对至少一个所述TRP进行波束恢复，包括：
S901b：终端判断TRP1和TRP2的波束失败实例次数大于或等于第一门限值，小于第二门限。
S902b：终端对TRP1和/或TRP2进行候选波束寻找。
在一种可能的实施方式中，终端选择一个波束预失败的TRP进行候选波束寻找，例如根据TRP的波束失败实例次数选择波束失败实例次数较大的TRP进行候选波束寻找。
在一种可能的实施方式中，终端对TRP1和TRP2进行候选波束寻找，对TRP1或TRP2中至少一个TRP的完成候选波束寻找后，或，对TRP1和TRP2完成候选波束寻找后，可以发送波束恢复请求MAC CE。
所述波束恢复请求MAC CE中，包含所有完成候选波束寻找过程的TRP的波束恢复信息。
如图9c所示，在一种可能的实施方式中，当小区中与终端通信的TRP中，存在波束失败实例次数大于或等于第一门限值且小于第二门限值的TRP，并且存在波束失败实例次数大于或等于第二门限值的TRP时，对波束失败实例次数大于或等于第二门限值的TRP进行波束恢复，可选的，对波束失败实例次数大于或等于第一门限值且小于第二门限值的TRP进行波束恢复，包括：
S901c：终端判断TRP1的波束失败实例次数大于或等于第一门限值，且小于第二门限值，TRP2的波束失败实例次数大于或等于第二门限值。
S902c：可选的，终端对TRP1进行候选波束寻找。
可选的，终端对TRP1进行候选波束寻找，并在波束恢复请求MAC CE中携带TRP1的波束恢复信息。
S903c：终端对TRP2进行候选波束寻找。
终端对TRP2进行候选波束寻找，在完成TRP2的候选波束寻找后，可以发送波束恢复请求MAC CE。
下面，对上述实施例中所述的小区中可能涉及多个TRP场景下的波束恢复请求MAC CE，提供如下可能的实施方式。
在一种可能的实施方式中，可以在协议中约定，波束恢复请求MAC CE中一个小区上报 一个需要进行波束恢复的接入网设备的波束恢复信息，如图10所示，所述MAC CE包括：
C域：用于指示波束恢复请求MAC CE中的需要波束恢复的小区的信息。
在一种可能的实施方式中，C域占用8比特，示例性的，C域中包括C0～C7 8个比特位，每一个比特位分别对应一个小区，例如通过小区的索引进行对应，索引为1的小区对应C1。对于每一个比特位，若取值为1，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中上报了需要进行波束恢复的接入网设备的波束恢复信息；若取值为0，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中未上报需要进行波束恢复的接入网设备的波束恢复信息。
本实施例中，以C域占用8比特为例进行介绍，不对C域占用的比特数进行限定，在协议中可以根据终端所需要指示的小区索引范围或可连接的小区的最大数量约定C域占用的比特数。示例性的，终端需指示的小区索引范围为0-7，或，终端可连接的小区的最大数量为8，则可以约定所述C域占用8比特；又例如，终端需指引的小区索引范围为0-31，或，终端可连接的小区的最大数量为32，则可以约定所述C域占用32比特。
在一种可能的实施方式中，C0也可以特别地指定为SP域，用于对应SpCell，指示波束恢复请求MAC CE中是否包含SpCell的接入网设备的波束恢复信息。
若C域中，第i个比特位Ci＝1，则在波束恢复请求MAC CE中对应的包含一个TRP波束恢复信息单元，用于指示对应的TRP的波束恢复信息。需要说明的是，也可以在协议中约定，在随机接入过程中，若所述波束恢复请求MAC CE用于指示SpCell中的TRP需要进行波束恢复时，MAC CE中可以不包含SpCell的TRP波束恢复信息单元。
波束恢复请求MAC CE中的TRP波束恢复信息单元按照对应的小区在C域中对应的位置排列，从而网络设备可以在读取波束恢复请求MAC CE内容时将TRP波束恢复信息单元和小区进行对应。
所述TRP波束恢复信息单元中至少包括：
AC域：用于指示终端是否找到了对应的TRP的候选波束。
AC域占用1比特，AC域值为1时，表示终端对于对应的TRP已找到候选波束；AC域值为0时，表示终端对于对应的TRP未找到候选波束。
Candidate Beam域：用于指示候选波束信息。
终端通过Candidate Beam域上报网络设备寻找的可用的波束，例如，可以通过网络设备配置的候选波束的参考信号的索引进行指示。
在一种可能的实施方式中，当AC域为0时，指示终端对于对应的TRP未找到候选波束，则Candidate Beam域的指示信息无意义，示例性的，Candidate Beam域中的比特可以全为0；当AC域为1时，指示终端对于对应的TRP已找到候选波束，则Candidate Beam域中包含指示候选波束相关信息的信息。
本方法实施例中，以Candidate Beam域占用6比特为例进行介绍，不对Candidate Beam域占用的比特数进行限定，可以在协议中按照所需要指示的波束信息索引的最大数量或波束信息索引的范围约定Candidate Beam域的长度。例如，若所需要指示的候选波束索引范围为0-63，或，候选波束索引最大数量为64，则Candidate Beam域可以在协议中约定占用6比特。
TI域：用于指示对应的TRP的信息。
在一种可能的实施方式中，TI域占用1比特，可以指示小区中的2个TRP。
本方法实施例及后续的实施例中，仅以TI域占用1比特为例，TI域占用的比特数可以根据协议中允许小区中的TRP的索引的范围，或，TRP的最大数量进行约定，并不进行限定。 例如，若小区中TRP索引的范围为0-7，或，TRP的最大数量为8，则TI域可占用3个比特。
本方法实施例中，TI域中的内容，可以是由网络设备进行配置和指定的TRP的索引，也可以利用其它能够指示TRP索引的信息，例如，可以为CORESETPoolIndex。
需要说明的是，当同一小区多个TRP发生波束失败时，终端可以发送多个图11所示的波束恢复请求MAC CE，从而上报同一小区中不同的TRP的波束恢复相关信息。
通过上述实施例，在小区中包含多个TRP的场景下，波束恢复请求MAC CE可以指示发生波束失败的TRP的波束恢复信息。
在一种可能的实施方式中，可以通过N域指示波束恢复请求MAC CE中，小区内需要进行波束恢复的TRP的数量，在波束恢复请求MAC CE中指示小区中多个需要进行波束恢复的TRP的波束恢复信息，如图11所示，包括：
C域：可以参考图10所示实施例中C域相关的内容。
N域：用于指示波束恢复请求MAC CE中需要进行波束恢复的小区的TRP波束恢复信息单元的数量。
本实施例中，C域占用8比特，最多可以指示8个小区，相应的，N域包含8个数量指示信息，指示每个小区TRP波束恢复信息单元的数量。在一种可能的实施方式中，TRP波束恢复信息单元的数量可以为N域中数量指示信息的值加1，例如，终端在一个小区中最多连接2个TRP，数量指示信息需占用1比特，值为0时表示数量为1，值为1时表示数量为2。因此本实施例中N域共占用8比特。
N域所占用的比特数与C域占用的比特数和终端在小区中可连接的TRP最大数量相关。可以在协议中，根据终端可连接的小区最大数量，与，终端在小区中可连接的TRP的最大数量，约定N域所占用的比特数，并约定N域中每一个数量指示信息所占用的比特数。例如，在协议中约定终端最多可连接16个小区，每个小区可最多连接4个TRP，则可以约定N域中包含16个数量指示信息，每个数量指示信息占用2比特，N域共占用32比特。
在一种可能的实施方式中，若C域中第i个比特位Ci为1，对应的N域中的第i个数量指示信息为Ni，则在MAC CE中包含Ni+1个TRP波束恢复信息单元。需要说明的是，可选的，在随机接入过程中，所述MAC CE中SpCell小区对应的Ni值可以为0，MAC CE中不包含SpCell的TRP波束恢复信息单元。
TRP波束恢复信息单元可参考图10所示实施例中TRP波束恢复信息单元的内容，不予赘述。
TRP波束恢复信息单元首先按照对应的小区索引顺序排列，从而在解析波束恢复请求MAC CE时，能够根据C域和N域的指示信息，获得每个小区中TRP波束恢复信息单元的数量，进而将TRP波束恢复信息单元与小区进行对应。对于同一个小区中的TRP波束恢复信息单元，可选的，可以按照TRP的索引顺序排列。在一种可能的实施方式中，若波束恢复请求MAC CE中包含小区中所有TRP的TRP波束恢复信息单元，则对于该小区的波束恢复信息单元，可以按照TRP的索引进行顺序排列，从而网络设备可以根据TRP波束恢复信息单元的顺序将TRP波束恢复信息单元与TRP设备相对应，此时，波束恢复信息单元中可以没有TI域指示TRP索引信息。
通过上述实施例，在一个波束恢复请求MAC CE中可以指示一个小区中多个发生波束失败的TRP的波束恢复相关信息，节省发送波束恢复请求MAC CE的开销。
在一种可能的实施方式中，在波束恢复请求MAC CE中，可以指示终端连接的每个设备是否需要进行波束恢复，如图12所示，包括：
M域：用于指示需要进行波束恢复的TRP。
M域为比特图，在一种可能的实施方式中，M域占用的比特数为C*N，其中，C为终端可以连接的小区的最大个数，N为每个小区中终端可以连接的TRP的最大数量；在另一种可能的实施方法中，M域的比特数为终端已连接的所有小区中TRP的数量的总和。
M域中第i个比特位Mi，取值为1，则表示波束恢复请求MAC CE中包含索引为i的TRP的波束恢复请求；取值为0，则表示波束恢复请求MAC CE中不包含索引为i的TRP的波束恢复请求。所述TRP的索引，可以由网络设备对所有TRP的索引进行配置得到，或者，可以根据小区索引和TRP在小区中的索引得到。
M域中每个取值为1的比特，波束恢复请求MAC CE中包含对应的一个TRP波束恢复信息单元，示例性的，若M域中包含K个为1的比特，K为大于或等于1的整数，则波束恢复请求MAC CE中M域后包含K个TRP波束恢复信息单元。在一种可能的实施方式中，在随机接入过程中，本实施例的MAC CE,SpCell所对应的比特位Mi的值均设置为1，可选的，M域后可以不包含SpCell的TRP的TRP波束恢复信息单元。
所述TRP波束恢复信息单元包括：
AC域：可以参考图10中AC域相关的内容，不予赘述。
Candidate Beam域：可以参考图10中Candidate Beam域相关的内容，不予赘述。
通过上述方法，可以直接指示发生波束失败并且完成候选波束寻找的TRP，从而减少网络设备解析MAC CE的开销。
在一种可能的实施方式中，波束恢复请求MAC CE可以由多个小区波束恢复信息单元构成，每个小区波束恢复信息单元中，指示对应小区的一个需要进行波束恢复的TRP，如图13所示，所述MAC CE包括：
波束恢复请求MAC CE中包含一个或多个小区波束恢复信息单元，所述小区波束恢复信息单元指示一个小区的一个需要进行波束恢复的TRP的波束恢复信息。可以理解的是，若存在多个小区中的TRP需要进行波束恢复，则波束恢复请求MAC CE包括多个小区波束恢复信息单元。
小区波束恢复信息单元中包括：
C域：用于指示所述小区波束恢复信息单元对应的小区信息。
C域中为小区的索引。本实施例中，C域占用6比特，取值范围为0-63，可以指示64个小区。需要说明的是，本实施例中对C域占用的比特数不做限定，可以在协议中根据终端可连接的小区的最大数量，或，根据小区索引值的范围，约定C域所占用的比特数。示例性的，协议中约定终端连接的小区数最多为8个，或，对应的小区索引范围为0-7，则可以约定所述C域占用3比特；又例如，协议中约定终端连接的小区数最多为32个，或，对应的小区索引范围为0-31，则可以约定所述C域占用5比特。
小区波束恢复信息单元中还包括一个TRP波束恢复信息单元，可以参考图10所示实施例中TRP波束恢复信息单元的内容，不予赘述。可选的，若C域中指示的小区为SpCell，且波束恢复请求MAC CE用于随机接入过程，则所述小区波束恢复信息单元中可以不包含TRP的波束恢复信息。
通过上述实施例中的MAC CE，若同一小区中多个TRP发生波束失败，可以在MAC CE中发送C域值相同的多个小区波束恢复信息单元，从而在一个MAC CE中指示同一小区中的多个发生波束失败的TRP的波束恢复信息，减少MAC CE占用的资源。
在一种可能的实施方式中，波束恢复请求MAC CE可以由多个小区波束恢复信息单元构 成，每个小区波束恢复信息单元中，包含N域，可以指示小区波束恢复信息单元中TRP波束恢复信息单元的数量，如图14所示，所述MAC CE包括：
MAC CE中包含一个或多个小区波束恢复信息单元，所述小区波束恢复信息单元可以指示一个发生波束失败并完成候选波束寻找过程的小区的至少一个发生波束失败的TRP的波束恢复的相关信息。小区波束恢复信息单元中包括：
C域：可以参考图13所示实施例中C域相关内容，在此不予赘述。
N域：用于指示对应的小区波束恢复信息单元中TRP波束恢复信息单元的数量。
N域所指示的TRP波束恢复信息单元的数量为N域的值加1，例如，N域的值为K时，K为大于等于0的整数，则小区波束恢复信息单元中包含K+1个TRP波束恢复信息单元。需要说明的是，不同的小区波束恢复信息单元中N域的值可以不同。
本实施例中N域占用1个比特，因此小区波束恢复信息单元中最多包含两个TRP波束恢复信息单元，其中N为“0”表示包含1个TRP波束恢复信息单元，“1”表示包含2个TRP波束恢复信息单元。需要注意的是，本方法实施例中以N域占用1比特为例进行介绍，对N域所占用的比特数不做限定，可以在协议中根据终端在一个小区中可连接的TRP的最大数量，或，TRP的索引的范围约定N域占用的比特数，例如，小区中TRP的个数最多为8，或，TRP索引的范围为0-7时，N域占用3比特。
小区波束恢复信息单元中还包括N域所指示的数量的TRP波束恢复信息单元。需要说明的是，可选的，在随机接入过程中，本实施例所述波束恢复信息MAC CE中SpCell的小区波束恢复信息单元的N域没有意义，并且不含TRP波束恢复信息单元。
TRP波束恢复信息单元可以参考图13实施例中TRP波束恢复信息单元的内容，不予赘述。
在一种可能的实施方式中，可选的，若小区波束恢复信息单元中的N域所指示的TRP波束恢复信息单元的数量，和对应小区中终端连接的TRP的数量相同，则小区波束恢复信息单元中，可以TRP波束恢复信息单元可以按照TRP的索引排列顺序，网络设备可以根据TRP波束恢复信息单元的顺序和TRP进行对应，TRP波束恢复信息单元中不包括TI域。
通过上述实施例，波束恢复请求MAC CE中每一个小区波束恢复信息单元可以指示多个需要进行波束恢复的TRP的信息，可以减少MAC CE的开销。
在一种可能的实施方式中，波束恢复请求MAC CE可以由多个小区波束恢复信息单元构成，每个小区波束恢复信息单元中，包含所有的TRP的波束恢复信息，如图15所示，所述MAC CE包括：
波束恢复请求MAC CE中包含一个或多个小区波束恢复信息单元，所述小区波束恢复信息单元包含小区中所有TRP的波束恢复信息。小区波束恢复信息单元中包括：
C域：可以参考图13所示实施例中C域相关内容，在此不予赘述。
N域：可以参考图14所示实施例中N域相关内容。
需要说明的是，本实施例中，N域指示小区波束恢复信息单元对应的小区中，终端连接的TRP的总数。终端连接的TRP的数量相关。例如，小区中终端连接的TRP个数为M+1，M为大于或等于0的整数，则N域的值为M，小区波束恢复信息单元中TRP波束恢复信息单元的个数为M+1。需要说明的是，在随机接入过程中，本实施例所述波束恢复请求MAC CE中SpCell对应的小区波束恢复信息单元中，可选的，N域值设置为0，并且小区波束恢复信息单元不包括TRP波束恢复信息单元。需要说明的是，不同小区的小区波束恢复信息单元中N域的值可以不同，例如，一个小区波束恢复信息单元中N域值为M，另一个小区波束恢 复信息单元中N域值为K，M和K为大于或等于0的整数。
本实施例中，TRP波束恢复信息单元包括：
BF域：用于指示对应的TRP波束恢复信息单元对应的TRP是否上报了波束恢复信息。
在一种可能的实施方式中，BF域占用1比特，BF域值为0时，表示对应的TRP未上报波束恢复信息，TRP波束恢复信息单元中的AC域和Candidate Beam域中的信息可以为无效值；BF域值为1时，表示对应的TRP上报了波束恢复信息，AC域和Candidate Beam域中的信息有效。
AC域：可以参考图10中AC域相关的内容，不予赘述。
Candidate Beam域：可以参考图10中Candidate Beam域相关的内容，不予赘述。
通过上述实施例，对于MAC CE中不需要指示设备的信息，同时网络设备解析MAC CE时，可以按照TRP波束恢复信息单元的顺序获取相应的TRP的波束恢复信息，从而减小处理的开销。
需要说明的是，图10-图15所示的实施例中，MAC CE中还可以根据需要增加保留字段R域，使MAC CE中的信息占用的比特数为8的整数倍，示例性的，如图14所示实施例，由于C域和N域共6比特，因此该字节可以增加2比特的R域。
可以理解的是，在一个波束恢复请求MAC CE中，可以指示多个小区的波束恢复请求信息，每个小区的波束恢复信息均可参考图10-图15所述方法实施，不予赘述。
此外，可以理解的是，上述实施例中所述波束恢复请求MAC CE可以相互结合，例如，可以在协议中约定根据波束恢复信息的实际情况使用不同的格式，并通过MAC层逻辑信道指示进行区分。
基于上述实施例，如图16，提供一种可能的实施方法，包括：
S1601：终端接收第一门限值和第二门限值的指示信息。
终端同TRP1、TPR2和TRP3基于波束进行通信。其中，TRP1、TRP2、TRP3属于同一小区，小区ID为1。
终端从TRP1接收第一门限值和第二门限值的指示信息，所述指示信息通过RRC信令承载。网络侧指示第一门限值索引为“01”，第二门限值索引为“02”，终端接收指示信息后，通过表1可以获得，第一门限值为4，第二门限值为8。
S1602：终端统计TRP1、TRP2、TPR3的波束失败实例次数。
终端通过第一波束失败实例计数器和第一波束失败检测计时器统计TRP1的波束失败实例次数，通过第二波束失败实例计数器和第二波束失败检测计时器统计TRP2的波束失败实例次数，通过第三波束失败实例计数器和第三波束失败检测计时器统计TRP3的波束失败实例次数。
S1603：终端对TRP1和TRP2进行候选波束寻找。
终端侧判断第一波束失败实例计数器大于或等于第二门限，TRP1的波束状态为波束失败；第二波束失败实例计数器大于或等于第一门限，并且小于第二门限，TRP2的波束状态为波束预失败；第二波束失败实例计数器小于第一门限，TRP3的波束状态为波束正常。
根据TRP1、TRP2、TRP3的波束状态，终端对TRP1和TRP2进行候选波束寻找，TRP1的候选波束RS ID为1，TRP2的候选波束RS ID为3。
S1604：终端确定TRP3为目标TRP。
终端比较TRP1、TRP2、TRP3的CSI-RS RSRP，判断TRP3的CSI-RS RSRP值最大，或者，终端根据TRP3的波束状态为波束正常，选择TRP3作为发送波束恢复请求MAC CE 的目标TRP。
S1605：终端向TRP3发送波束恢复请求MAC CE。
终端设备根据TRP3对应的CORESETPoolIndex值，获得TRP3对应的CORESET，在所述CORESET资源中检测PDCCH，并根据所述PDCCH中的上行授权信息中指示的上行资源，发送波束恢复请求MAC CE，其中携带TRP1和TRP2的波束恢复信息。
在一种可能的实施方式中，示例性的，基于图14所示实施例，所述波束恢复请求MAC CE如图17所示。
由于波束恢复请求MAC CE仅涉及一个小区，因此仅包含一个小区波束恢复信息单元。
在协议中约定，所述小区波束恢复信息单元的第一字节包括C域/R域/N域。其中，C域占用5比特，取值范围为0-31，因此最多可以指示终端连接的32个小区；N域占用2比特，取值范围为0-3，可以指示小区波束恢复信息单元中包含1-4个TRP波束恢复信息单元；由于C域和N域共占用7比特，为了便于解析MAC CE，在C域和N域中间设置1比特R域。
第一字节值为“00001001”，具体说明如下：
TRP1和TRP2的小区ID为“1”，因此C域中填写“00001”。
由于TRP1和TRP2需要进行波束恢复，因此会有2个TRP波束恢复信息单元，因此N域中填写“01”。
R域填写“0”。
在协议中约定，小区波束恢复信息单元的第二字节开始为TRP波束恢复信息单元，TRP波束恢复信息单元占用8比特，包括AC域/TI域/Candidate RS ID域。其中，AC域占用1比特，第一取值“1”表示找到候选波束，第二取值“0”表示未找到候选波束；TI域占用2比特，取值范围为0-3，因此最多可以指示4个TRP；Candidate RS ID域占用5比特，取值范围为0-31，因此最多可以指示32个候选波束。
第二字节值为“10000001”，具体说明如下：
TRP波束恢复信息单元对应的TRP找到候选波束，因此AC域填写“1”。
TRP波束恢复信息单元对应的TRP为TRP1，TRP1的ID为0，因此TRI域填写“00”。
对于TRP1找到的候选波束ID索引为1，因此Candidate RS ID域填写“00001”。
第三字节值为“10100011”，具体说明如下：
TRP波束恢复信息单元对应的TRP找到候选波束，因此AC域填写“1”。
TRP波束恢复信息单元对应的TRP为TRP2，TRP2的ID为1，因此TRI域填写“01”。
对于TRP2找到的候选波束ID索引为3，因此Candidate RS ID域填写“00011”。
在另一种可能的实施方式中，示例性的，基于图11所示实施例，所述MAC CE如图18所示。
在协议中约定，所述波束恢复请求MAC CE的第一字节为C域。C域占用8比特，包括C0-C7 8个比特位，因此最多可以指示8个小区。
第一字节的值为“00000010”，具体说明如下：
仅TRP1和TRP2对应的小区中TRP需要进行波束恢复，小区ID为1，因此C1中填写“1”，其余比特位填写“0”。
在协议中约定，所述波束恢复请求MAC CE的第二、第三字节为N域。N域占用16比特，包括N0-N7，分别于C0-C7对应，N0-N7分别占用2比特，取值范围为0-3，最多可以指示所述MAC CE中包含对应小区的4个TRP波束恢复信息单元。
第二字节的值为“00000100”，第二字节的值为“00000000”，具体说明如下：
仅TRP1和TRP2对应的小区中TRP需要进行波束恢复，小区ID为1，TRP数量为2，因此N1中填写01”。由于C0，及，C2-7的值为“0”，因此可以表示所对应小区无TRP波束恢复信息单元，N0及N2-N7的值填写为“00”。
在协议中约定，第三字节开始，后续为TRP波束恢复信息单元，每个TRP波束恢复信息单元占用8比特，包括AC域/TI域/Candidate RS ID域。TRP波束恢复信息单元的数量为N域中所指示的TRP波束恢复信息单元数量的总和，因此本实施例中包含2个TRP波束恢复信息单元。
第三字节的说明可参考图17所示MAC CE中第二字节，第四字节的说明可参考图17所示MAC CE中第三字节的内容，不予赘述。
S1606：TRP3接收波束恢复请求MAC CE，并转发波束恢复信息。
TRP3接收波束恢复请求MAC CE，并通过理想回程或非理想回程，将所述波束恢复请求的指示信息转发至TRP1和TRP2。
S1607：TRP1和TRP2进行波束恢复。
TRP1和TRP2分别接收所述波束恢复请求指示，进行波束恢复。
S1608：终端接收TRP3的波束恢复响应。
TRP3向终端发送上行授权，所述上行授权中HARQ进程与终端发送波束恢复请求MAC CE的HARQ进程相同，并且指示新传，终端接收后判断波束恢复完成，将第一波束失败实例计数器和第二波束失败实例计数器清零。
通过上述方法，详细介绍了波束恢复的整体流程。下面，如图19所示，提供了一种TRP的控制方法，可以和上述实施例结合，包括：
S1901：终端接收第一门限值和第二门限值的指示信息。
终端与TRP1基于波束进行数据通信。
终端接收第一门限值和第二门限值的指示信息，对TRP1通过第一波束失败实例计数器和第一波束失败检测计时器进行波束失败实例次数的统计。当TRP的波束失败实例次数大于或等于第一门限值，小于第二门限值时，或，当波束失败实例次数大于或等于第二门限值时，终端对所述TRP进行波束恢复。可以参考上述实施例相关内容，不予赘述。
可选的，终端可以通过TRP1接收指示信息，所述指示信息中，包含指示监听TRP2的PDCCH的时域及频域资源的信息。所述指示信息可以通过以下内容的至少一项承载：RRC信令、DCI，或，MAC CE。
S1902：终端接收激活TRP2指示信息，开始与TRP2进行通信。
终端通过TRP1接收激活TRP2指示信息。可选的，在激活TRP2指示信息信息中可以包含指示监听TRP2的PDCCH的时域及频域资源的信息。所述激活TRP2指示信息可以通过以下内容的至少一项承载：RRC信令、DCI，或，MAC CE。
终端根据TRP2的PDCCH的时域及频域资源信息，监听TRP2的PDCCH。从而，终端设备可以同TRP1和TRP2基于波束进行数据通信。
终端开始对TRP2通过第二波束失败实例计数器和第二波束失败检测计时器进行波束失败实例次数的统计。
S1903：终端接收去激活TRP1指示信息，停止与TRP1进行通信。
终端接收去激活TRP1指示信息，所述去激活TRP1指示信息中，包含去激活TRP1的指示信息，终端停止与TRP1进行通信，将第一波束失败实例计数器清零。终端停止在TRP1的PDCCH时域及频域资源监听PDCCH，停止向TRP1发送SRS、PUCCH、RACH和CSI 报告，网络设备停止通过TRP1的PDCCH时域及频域资源向终端发送PDCCH。可选的，网络侧和终端保留TRP1的PDCCH时域及频域资源，可以在TRP1重新激活后继续使用。
在一种可能的实施方式中，网络侧统计接收到TRP1的波束恢复请求的次数，当接收到TRP1的波束恢复请求的次数，大于或等于去激活TRP次数门限值时，网络侧可以进行判断去激活TRP1，向终端发送所述去激活TRP1指示。
在一种可能的实施方式中，网络侧也可以根据业务需要指示TRP1去激活，例如，TRP1未与终端进行数据通信的持续时长大于或等于去激活TRP时长门限值时，网络侧可以进行判断去激活TRP1，向终端发送所述去激活TRP1指示。
可选的，在去激活TRP1指示信息中，还可以包括TRP1的去激活时长的指示信息，所述终端与TRP1停止通信后，在所述去激活时长指示所指示的时间之后，重新激活TRP1，终端与TRP1重新开始通信。所述去激活时长的指示信息可以为具体的时间长度数值，或者，在协议中约定时长的档位，通过档位的索引值指示去激活的时间长度。
去激活TRP1指示信息可以通过TRP1或TRP2发送，所述去激活TRP1指示信息可以通过以下内容的至少一项承载：RRC信令、DCI，或，MAC CE。
通过上述实施方法，当TRP的波束频繁发生波束失败时，网络设备可以判断并去激活所述TRP，从而提升UE节能效果。
可以理解的是，以上实施例中各个具体流程中的细节描述可以相互借鉴或结合，在此不予赘述。
以上结合图6-图19详细说明了本申请实施例的通信方法。以下结合图20-图22详细说明本申请实施例的通信装置。
图20是本申请实施例提供的一种终端的结构示意图。该终端可适用于图1所示出的系统中，执行上述方法实施例中终端的功能。为了便于说明，图20仅示出了终端的主要部件。如图20所示，终端2000包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端执行上述方法实施例中所描述的动作。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端开机后，处理器可以读取存储器的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图20仅示出了一个存储器和一个处理器。在实际的终端中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以为与处理器处于同一芯片上的存储元件，即片内存储元件，或者为独立的存储元件，本申请实施例对此不做限定。
作为一种可选的实现方式，所述终端可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端进行控制，执行软件程序，处理软件程序的数据。图20中的处理器可以集成基带处理器和中央处理器的功能， 本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储器中，由处理器执行软件程序以实现基带处理功能。
在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端2000的收发单元2001，例如，用于支持终端执行接收功能和发送功能。将具有处理功能的处理器2002视为终端2000的处理单元2002。如图20所示，终端2000包括收发单元2001和处理单元2002。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元2001中用于实现接收功能的器件视为接收单元，将收发单元2001中用于实现发送功能的器件视为发送单元，即收发单元2001包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
处理器2002可用于执行该存储器存储的指令，以控制收发单元2001接收信号和/或发送信号，完成上述方法实施例中终端的功能。所述处理器2002还包括接口，用以实现信号的输入/输出功能。作为一种实现方式，收发单元2001的功能可以考虑通过收发电路或者收发的专用芯片实现。
图21是本申请实施例提供的一种接入网设备的结构示意图，如可以为基站的结构示意图。如图21所示，该基站可应用于如图1所示的系统中，执行上述方法实施例中接入网设备的功能。基站2100可包括一个或多个DU2101和一个或多个CU 2102。CU2102可以与NG core(下一代核心网，NC)或EPC通信。所述DU2101可以包括至少一个天线21011，至少一个射频单元21012，至少一个处理器21013和至少一个存储器21016。所述DU 2101部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU2102可以包括至少一个处理器21022和至少一个存储器21021。CU2102和DU2101之间可以通过接口进行通信，其中，控制面(Control plan)接口可以为Fs-C，比如F1-C，用户面(User Plan)接口可以为Fs-U，比如F1-U。
所述CU2102部分主要用于进行基带处理，对基站进行控制等。所述DU2101与CU2102可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU2102为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU2102可以用于控制基站执行上述方法实施例中关于接入网设备的操作流程。
具体的，CU和DU上的基带处理可以根据无线网络的协议层划分，例如PDCP层及以上协议层的功能设置在CU，PDCP以下的协议层，例如RLC层，MAC层和PHY层等的功能设置在DU。
此外，可选的，基站2100可以包括一个或多个射频单元(RU)，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器21013和至少一个存储器21014，RU可以包括至少一个天线21011和至少一个射频单元21012，CU可以包括至少一个处理器21022和至少一个存储器21021。
在一个实例中，所述CU2102可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器21021和处理器21022可以服务于一个或多个单板。也就是说， 可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。所述DU2101可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器21014和处理器21013可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
图22给出了一种通信装置2200的结构示意图。通信装置2200可用于实现上述方法实施例中描述的方法，可以参见上述方法实施例中的说明。所述通信装置2200可以是芯片，接入网设备(如基站)，或，终端等。
所述通信装置2200包括一个或多个处理器2201。所述处理器2201可以是通用处理器或者专用处理器等。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对装置(如，基站、终端、或芯片等)进行控制，执行软件程序，处理软件程序的数据。所述装置可以包括收发单元，用以实现信号的输入(接收)和输出(发送)。例如，装置可以为芯片，所述收发单元可以是芯片的输入和/或输出电路，或者通信接口。所述芯片可以用于终端或接入网设备(比如基站)或核心网设备。又如，装置可以为终端或接入网设备(比如基站)，所述收发单元可以为收发器，射频芯片等。
所述通信装置2200包括一个或多个所述处理器2201，所述一个或多个处理器2201可实现图6-图19所示的实施例中基站或者终端的方法。
在一种可能的设计中，所述通信装置2200包括用于接收来自基站的第一门限和第二门限指示信息，并进行数据传输的部件(means)，以及用于判断对TRP进行波束恢复和发送波束恢复请求MAC CE的部件(means)。可以通过一个或多个处理器来实现所述的部件的功能。例如可以通过一个或多个处理器，通过收发器、或输入/输出电路、或芯片的接口发送。可以参见上述方法实施例中的相关描述。
在一种可能的设计中，所述通信装置2200包括用于向终端发送第一门限和第二门限指示信息，并接收波束恢复请求MAC CE的部件(means)，以及用于进行波束恢复的部件(means)。所述可以参见上述方法实施例中的相关描述。例如可以通过收发器、或输入/输出电路、或芯片的接口接收，通过一个或多个处理器。
可选的，处理器2201除了实现图6-图19所示的实施例的方法，还可以实现其他功能。
可选的，一种设计中，处理器2201也可以包括指令2203，所述指令可以在所述处理器上被运行，使得所述通信装置2200执行上述方法实施例中描述的方法。
在又一种可能的设计中，通信装置2200也可以包括电路，所述电路可以实现前述方法实施例中接入网设备或终端的功能。
在又一种可能的设计中所述通信装置2200中可以包括一个或多个存储器2202，其上存有指令2204，所述指令可在所述处理器上被运行，使得所述通信装置2200执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。可选的处理器中也可以存储指令和/或数据。例如，所述一个或多个存储器2202可以存储上述实施例中所描述的第一门限值和第二门限值指示信息，或者上述实施例中所涉及的其他信息。所述处理器和存储器可以单独设置，也可以集成在一起。
在又一种可能的设计中，所述通信装置2200还可以包括收发单元2205以及天线2206，或者，包括通信接口。所述收发单元2205可以称为收发机、收发电路、或者收发器等，用于通过天线2206实现装置的收发功能。所述通信接口(图中未示出)，可以用于核心网设备和 接入网设备，或是，接入网设备和接入网设备之间的通信。可选的，该通信接口可以为有线通信的接口，比如光纤通信的接口。
所述处理器2201可以称为处理单元，对装置(比如终端或者基站或者AMF)进行控制。
本申请还提供一种通信系统，其包括前述的一个或多个接入网设备，和，一个或多个终端，和，核心网设备中的一项或多项的组合。
应理解，在本申请实施例中的处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，RAM)可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件(如电路)、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线，例如光纤，或是无线，例如红外、无线、微波等，方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、通信装置和方法，可以 通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (43)

  1. 一种波束失败恢复BFR方法，其特征在于，由终端或配置用于终端的芯片执行，包括：
    确定波束恢复请求媒体接入控制控制元素MAC CE；
    向目标接入网设备发送所述波束恢复请求MAC CE；
    其中，所述波束恢复请求MAC CE至少包括所述终端设备所在的一个或多个小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元包括以下内容：
    小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；及
    接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示所述接入网设备的波束恢复信息。
  2. 一种波束失败恢复BFR方法，其特征在于，由目标接入网设备或配置用于目标接入网设备的芯片执行，包括：
    接收来自终端的波束恢复请求MAC CE；
    其中，所述波束恢复请求MAC CE至少包括所述终端设备所在的一个或多个小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元包括以下内容：
    小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；及
    接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示所述接入网设备的波束恢复信息。
  3. 如权利要求1或2所述方法，其特征在于，所述小区波束恢复信息单元还包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元包括以下内容的一项或多项：
    可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；
    候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；或，
    接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述目标接入网设备为与所述终端进行数据通信的与所述一个或多个小区对应的一个或多个接入网设备中的一个。
  5. 如权利要求4所述的方法，其特征在于，所述目标接入网设备为所述终端收到上行授权所对应的小区的接入网设备。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述小区指示C域所指示的小区包括特殊小区SpCell。
  7. 如权利要求6所述的方法，其特征在于，对应所述特殊小区SpCell的所述小区指示C域中的C0比特位。
  8. 如权利要求1-7任一项所述的方法，其特征在于，所述小区指示C域包括C0～C7 8个 比特位或者C0～C31 32个比特位，每一个比特位分别对应一个小区，对于每一个比特位，若取值为1，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中上报了需要进行波束恢复的接入网设备的波束恢复信息；若取值为0，指示与所述比特位对应的小区在所述波束恢复请求MAC CE中未上报需要进行波束恢复的接入网设备的波束恢复信息。
  9. 如权利要求3-8任一项所述的方法，其特征在于，所述AC域占用1比特，AC域值为1时，表示终端对于对应的接入网设备已找到可用候选波束；AC域值为0时，表示终端对于对应的接入网设备未找到可用候选波束。
  10. 如权利要求1-9任一项所述的方法，其特征在于，所述接入网设备波束恢复信息单元数量指示N域占用8比特位或32比特位，每个比特位分别对应一个小区，对于每一个比特位，若取值为0，表示该比特对应的小区的接入网设备波束恢复信息单元的数量为1，若取值为1时表示该比特对应的小区的接入网设备波束恢复信息单元的数量为2。
  11. 如权利要求1或3-10任一项所述的方法，其特征在于，还包括：
    发送所述波束恢复请求MAC CE前，对所述一个或多个小区的所述一个或多个接入网设备进行候选波束寻找，以确定所述波束恢复请求MAC CE；
    发送所述波束恢复请求MAC CE，并在接收所述目标接入网设备的波束恢复响应后，判断波束恢复完成。
  12. 如权利要求1或3-11任一项所述的方法，其特征在于，还包括：
    发送所述波束恢复请求MAC CE前，对所述一个或多个小区的所述一个或多个接入网设备的每一个接入网设备统计波束失败实例次数，当接入网设备的波束失败实例次数大于第一门限值且小于第二门限值时，确定对所述接入网设备进行波束恢复。
  13. 如权利要求12所述的方法，其特征在于，还包括：
    当接入网设备的波束失败实例次数大于或等于第二门限值时，确定所述接入网设备的所述波束处于波束失败状态。
  14. 如权利要求12或13所述的方法，其特征在于，还包括：
    接收所述第一门限值和所述第二门限值的指示信息。
  15. 如权利要求12-14任一项所述的方法，其特征在于，所述波束失败实例次数的统计基于波束失败实例计数器和波束失败检测计时器。
  16. 一种通信装置，其特征在于，包括用于执行权利要求1-15任一项所述的方法的模块。
  17. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1，或，3-15中任一项所述的方法。
  18. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求2-10中任一项所述的方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现权利要求1-15任一项所述的方法。
  20. 一种计算机程序产品，其特征在于，当所述计算机程序产品被通信装置执行时，权利要求1-15任一项所述的方法得以实现。
  21. 一种通信系统，包括如下中一个或多个：如权利要求17所述的通信装置，或，如权利要求18所述的通信装置。
  22. 一种波束失败恢复BFR方法，其特征在于，包括：
    终端接收第一门限值和第二门限值的指示信息，所述终端与所在小区的一个或多个接入网设备基于波束进行数据通信并统计所述一个或多个接入网设备的波束失败实例次数，当接入网设备的波束失败实例次数大于或等于第二门限值时，所述接入网设备的所述波束处于波束失败状态；
    当所述接入网设备的波束失败实例次数大于所述第一门限值且小于所述第二门限值时，所述终端对所述接入网设备进行波束恢复。
  23. 如权利要求22所述的方法，其特征在于，所述统计所述一个或多个接入网设备的波束失败实例次数包括：
    所述终端通过波束失败实例计数器和波束失败检测计时器，分别对所述一个或多个接入网设备的每一个接入网设备统计波束失败实例次数。
  24. 如权利要求22-23任一项所述方法，其特征在于，所述终端对所述接入网设备进行波束恢复包括：
    所述终端对所述接入网设备进行候选波束寻找，以获得波束恢复请求媒体接入控制控制元素MAC CE的内容，所述波束恢复请求MAC CE指示所述接入网设备的波束恢复信息；
    所述终端根据以下内容的一项确定发送波束恢复请求MAC CE的目标接入网设备：所述一个或多个接入网设备的参考信号接收功率RSRP；所述终端收到的所述小区的上行授权；或，所述一个或多个接入网设备的波束失败实例次数；
    所述终端向所述目标接入网设备发送所述波束恢复请求MAC CE，并在接收目标接入网设备的波束恢复响应后，判断波束恢复完成。
  25. 如权利要求24所述的方法，其特征在于，所述波束恢复请求MAC CE至少包括所述小区的小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元至少包括以下内容的一项：
    小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；
    接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示接入网设备的波束恢复信息。
  26. 如权利要求25所述方法，其特征在于，所述小区波束恢复信息单元包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元至少包括以下内容的一项：
    可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；
    候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；
    接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备；或，
    波束失败指示BF域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备是否需要进行波束恢复。
  27. 如权利要求22-26所述的方法，其特征在于，所述方法还包括：
    所述终端接收去激活接入网设备的指示；
    所述终端清零所述接入网设备对应的波束失败实例计数器。
  28. 如权利要求22-26所述的方法，其特征在于，所述方法还包括：
    所述终端接收激活接入网设备的指示；
    所述终端开始统计所述接入网设备波束失败实例的次数。
  29. 一种波束失败恢复BFR方法，其特征在于，包括：
    向终端发送第一门限值和第二门限值的指示信息，接入网设备基于波束与所述终端进行数据通信，当接入网设备的波束失败实例次数大于或等于第二门限值时，所述接入网设备的所述波束处于波束失败状态；
    当所述接入网设备的波束失败实例次数大于所述第一门限值且小于所述第二门限值时，接入网设备接收所述终端指示的波束恢复信息。
  30. 如权利要求29所述方法，其特征在于，当所述接入网设备的波束失败实例次数大于所述第一门限值且小于所述第二门限值时，接入网设备接收所述终端指示的波束恢复信息包括：
    所述波束失败实例次数大于所述第一门限值且小于所述第二门限值的接入网设备接收所述终端指示的波束恢复信息；或，
    所述波束失败实例次数大于所述第一门限值且小于所述第二门限值的接入网设备以外的其他接入网设备接收所述终端指示的波束恢复信息。
  31. 如权利要求29-30任一项所述方法，其特征在于，所述接入网设备接收所述终端指示的波束恢复信息包括：
    所述接入网设备接收波束恢复请求MAC CE。
  32. 如权利要求29-31任一项所述方法，其特征在于，所述方法还包括：
    所述接收所述终端指示的波束恢复信息的接入网设备为第一接入网设备，所述第一接入网设备向终端发送波束恢复响应；
    若所述波束恢复请求MAC CE包含第二接入网设备的波束恢复信息，所述第一接入网设备将所述波束恢复信息，或，所述波束恢复请求MAC CE转发至所述第二接入网设备。
  33. 如权利要求31或32所述的方法，其特征在于，所述波束恢复请求MAC CE包括至少一个小区波束恢复信息单元，所述小区波束恢复信息单元用于指示对应的小区的波束恢复信息，所述小区波束恢复信息单元至少包括以下内容的一项：
    小区指示C域，用于指示所述小区波束恢复信息单元对应的小区；
    接入网设备波束恢复信息单元数量指示N域，用于指示所述小区波束恢复信息单元中接入网设备波束恢复信息单元的数量，所述接入网设备波束恢复信息单元用于指示接入网设备的波束恢复信息。
  34. 如权利要求33所述方法，其特征在于，所述小区波束恢复信息单元还包括至少一个所述接入网设备波束恢复信息单元，所述接入网设备波束恢复信息单元至少包括以下内容的一项：
    可用候选波束指示AC域，用于指示候选参考信号索引Candidate RS ID域中的内容是否有效；
    候选参考信号索引Candidate RS ID域，用于指示候选波束的参考信号的索引；
    接入网设备指示TI域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备；或，
    波束失败指示BF域，用于指示所述接入网设备波束恢复信息单元对应的接入网设备是 否需要进行波束恢复。
  35. 如权利要求29-34所述的方法，其特征在于，所述方法还包括：
    向所述终端发送去激活接入网设备的指示；
    所述接入网设备停止与所述终端通信。
  36. 如权利要求29-34所述的方法，其特征在于，所述方法还包括：
    向所述终端发送激活接入网设备的指示；
    所述接入网设备开始与所述终端进行数据传输。
  37. 一种通信装置，其特征在于，包括用于执行权利要求22-28任一项所述的方法的模块。
  38. 一种通信装置，其特征在于，包括用于执行权利要求29-36任一项所述的方法的模块。
  39. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求22-28中任一项所述的方法。
  40. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求29-36中任一项所述的方法。
  41. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现权利要求22-28任一项所述的方法，或实现权利要求29-36任一项所述的方法。
  42. 一种计算机程序产品，其特征在于，当所述计算机程序产品被通信装置执行时，权利要求22-28任一项所述的方法得以实现，或权利要求29-36任一项所述的方法得以实现。
  43. 一种通信系统，包括如下中一个或多个：如权利要求37-40中任一项所述的通信装置。
PCT/CN2022/084091 2021-04-01 2022-03-30 波束失败恢复方法，装置及可读存储介质 Ceased WO2022206845A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22779027.6A EP4301023A4 (en) 2021-04-01 2022-03-30 METHOD AND DEVICE FOR RECOVERING A BEAM FAILURE AND READABLE STORAGE MEDIUM
BR112023020148A BR112023020148A2 (pt) 2021-04-01 2022-03-30 Aparelho, método de comunicação, aparelho de comunicação, e meio de armazenamento legível por computador
US18/476,880 US20240023184A1 (en) 2021-04-01 2023-09-28 Beam failure recovery method, apparatus, and readable storage medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110356892.9 2021-04-01
CN202110356892.9A CN115190497A (zh) 2021-04-01 2021-04-01 波束失败恢复方法，装置及可读存储介质

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/476,880 Continuation US20240023184A1 (en) 2021-04-01 2023-09-28 Beam failure recovery method, apparatus, and readable storage medium

Publications (1)

Publication Number Publication Date
WO2022206845A1 true WO2022206845A1 (zh) 2022-10-06

Family

ID=83457984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/084091 Ceased WO2022206845A1 (zh) 2021-04-01 2022-03-30 波束失败恢复方法，装置及可读存储介质

Country Status (5)

Country Link
US (1) US20240023184A1 (zh)
EP (1) EP4301023A4 (zh)
CN (1) CN115190497A (zh)
BR (1) BR112023020148A2 (zh)
WO (1) WO2022206845A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025035308A1 (en) * 2023-08-11 2025-02-20 Mediatek Inc. A method of sidelink beam-based rlf detection

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12395866B2 (en) * 2021-08-06 2025-08-19 Qualcomm Incorporated Determining a beam failure instance count for beam failure detection
WO2023195821A1 (en) * 2022-04-08 2023-10-12 Samsung Electronics Co., Ltd. Method and apparatus for downlink control information interpretation in wireless communication system
CN116830671B (zh) * 2023-05-06 2024-05-07 北京小米移动软件有限公司 Trp选择方法及装置、通信设备、通信系统及存储介质
WO2025166144A1 (en) * 2024-02-02 2025-08-07 Interdigital Patent Holdings, Inc. Beam failure detection and recovery associated with nes cells

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110896546A (zh) * 2018-09-13 2020-03-20 展讯通信（上海）有限公司 波束失败恢复方法及装置、存储介质、用户设备
CN111866959A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 波束失败上报的方法和装置
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110475353B (zh) * 2018-05-11 2022-06-28 华为技术有限公司 链路恢复的方法和装置
US11012137B2 (en) * 2018-08-09 2021-05-18 Comcast Cable Communications, Llc Resource management for beam failure recovery procedures
US11211990B2 (en) * 2019-05-01 2021-12-28 Ofinno, Llc Beam failure recovery in multi-TRP scenarios
US11362722B2 (en) * 2019-10-03 2022-06-14 Mediatek Inc. Beam failure recovery procedure for secondary cell in mobile communications
CN113647168A (zh) * 2019-12-17 2021-11-12 Oppo广东移动通信有限公司 激活或去激活传输配置指示状态的方法和装置
EP4104490A1 (en) * 2020-02-12 2022-12-21 IDAC Holdings, Inc. Power efficient measurements at higher frequencies
CN113810958A (zh) * 2020-06-12 2021-12-17 索尼公司 用于无线通信的电子设备和方法、计算机可读存储介质
US11979756B2 (en) * 2020-08-05 2024-05-07 Samsung Electronics Co., Ltd. Method and apparatus for handling beam failure recovery in a wireless communication system
JP7642075B2 (ja) * 2021-01-04 2025-03-07 北京小米移動軟件有限公司 デフォルトビームの決定方法、装置、ユーザ機器及びネットワーク機器
US20240073710A1 (en) * 2021-01-18 2024-02-29 JRD Communication (Shenzhen) Ltd. Beam recovery method for multi-trp system, communication device, and readable storage medium
US12413290B2 (en) * 2021-05-26 2025-09-09 Qualcomm Incorporated Techniques for interference-based beam failure detection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110896546A (zh) * 2018-09-13 2020-03-20 展讯通信（上海）有限公司 波束失败恢复方法及装置、存储介质、用户设备
CN111866959A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 波束失败上报的方法和装置
CN112351452A (zh) * 2019-08-09 2021-02-09 夏普株式会社 由用户设备执行的方法以及用户设备

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CONVIDA WIRELESS: "On Per-TRP Beam Failure Recovery", 3GPP DRAFT; R1-2101416, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971581 *
See also references of EP4301023A4
VIVO: "Further discussion on MTRP multibeam enhancement", 3GPP DRAFT; R1-2007647, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 24 October 2020 (2020-10-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051946456 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025035308A1 (en) * 2023-08-11 2025-02-20 Mediatek Inc. A method of sidelink beam-based rlf detection

Also Published As

Publication number Publication date
BR112023020148A2 (pt) 2023-11-28
US20240023184A1 (en) 2024-01-18
EP4301023A1 (en) 2024-01-03
CN115190497A (zh) 2022-10-14
EP4301023A4 (en) 2024-08-14

Similar Documents

Publication Publication Date Title
EP3607770B1 (en) Methods for reporting a secondary node failure in dual connectivity networks, user equipment and base station
US10785824B2 (en) Information processing method and related apparatus
WO2022206845A1 (zh) 波束失败恢复方法，装置及可读存储介质
US9743329B2 (en) Base station handover method, X2 interface setup method, base station, user equipment and system
WO2021018283A1 (zh) 通信方法和通信装置
JP2022534992A (ja) 拡張メークビフォアブレークハンドオーバ中の拡張ユーザ機器能力交換
US20230362750A1 (en) Data transmission method and apparatus
WO2020143692A1 (zh) 通信方法和通信装置
KR20250012649A (ko) 랜덤 액세스 채널리스 계층 1/계층 2 트리거된 이동성의 실현
US20220386196A1 (en) Method and device for handing over terminal in wireless communication system using artificial intelligence
US20240334273A1 (en) Wireless communication method, terminal device and network device
US12574776B2 (en) Information transmission method and related device
JP2023514077A (ja) マスタノード、セカンダリノード、ユーザ装置及び通信ネットワークで実行される方法
WO2021204022A1 (zh) 一种测量方法和装置
US20240267109A1 (en) Beam failure recovery method and communication apparatus
KR20250033273A (ko) 계층 1/계층 2 트리거된 이동성에 대한 구성 선택 강화들
US10212609B2 (en) Method and apparatus for constructing multi-cell network in mobile communication system
KR20250075685A (ko) 기지국 내 중앙 집중형 유닛 사용자 평면 재배치를 위한 계층 1/계층 2 트리거된 이동성
US20240365185A1 (en) Information configuration method and apparatus, and related device
US20240357691A1 (en) Method and apparatus for transceiving information, and communication system
US20240276318A1 (en) Communication method and communication apparatus
WO2021032007A1 (zh) 链路失败报告传输的方法和装置
CN115380558B (zh) 主节点和辅节点之间的测量标识协调
US20240292313A1 (en) Information transmission method, information reception method and apparatuses thereof and system
US20230262561A1 (en) Communication method and communication apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22779027

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022779027

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022779027

Country of ref document: EP

Effective date: 20230929

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112023020148

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112023020148

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20231002