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WO2023088114A1 - Procédé de récupération de faisceau, procédé de détection de défaillance de faisceau et appareil associé - Google Patents

Procédé de récupération de faisceau, procédé de détection de défaillance de faisceau et appareil associé Download PDF

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Publication number
WO2023088114A1
WO2023088114A1 PCT/CN2022/130247 CN2022130247W WO2023088114A1 WO 2023088114 A1 WO2023088114 A1 WO 2023088114A1 CN 2022130247 W CN2022130247 W CN 2022130247W WO 2023088114 A1 WO2023088114 A1 WO 2023088114A1
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resource
reference signal
terminal device
cell
neighbor cell
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Chinese (zh)
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李芳�
袁世通
樊波
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of communication technologies, and in particular to a beam restoration method, a beam failure detection method, and related devices.
  • the fifth generation mobile communication system can use high-frequency communication, that is, use ultra-high frequency (>6GHz) signals to transmit data.
  • high-frequency communication A major problem with high-frequency communication is that the signal energy drops dramatically with the transmission distance, resulting in short signal transmission distances.
  • high-frequency communication adopts analog beam technology. By weighting the antenna array, the signal energy is concentrated in a small angle range to form a signal similar to a beam (called an analog beam, or beam for short). ), thereby increasing the transmission distance.
  • the terminal device can communicate with the network device through the beam of the serving cell. When the beam is blocked, normal communication between the terminal device and the network device will fail.
  • the terminal device can identify a new beam and initiate a beam recovery request to the network device.
  • the network device may feed back a beam recovery response to the terminal device, so that the network device and the terminal device find a beam that meets the communication quality again.
  • the terminal device can also communicate with the network device through the beam of the neighbor cell.
  • the beam of a neighbor cell fails, how the terminal device restores the beam of the neighbor cell is a problem worth considering.
  • the present application provides a beam recovery method, a beam failure detection method and a related device, which are used for beam recovery and detection of a neighbor cell of a terminal device. Realize that terminal equipment supports beam failure detection and recovery of neighboring cells, and improve communication performance.
  • the first aspect of the present application provides a beam recovery method, including:
  • the terminal device determines a target PRACH resource associated with a target reference signal resource from at least one physical random access channel (PRACH) resource, and the target PRACH resource is a reference signal corresponding to a target candidate beam of a neighbor cell of the terminal device resource. Then, the terminal device initiates beam recovery of neighbor cells based on the target PRACH resource.
  • PRACH physical random access channel
  • the terminal device may determine the target PRACH resource associated with the target reference signal resource from at least one PRACH resource. If the terminal device has only one PRACH resource, the terminal device directly uses the PRACH resource as the target PRACH resource. The terminal device initiates the beam restoration of the neighbor cell based on the target PRACH resource. In this way, the terminal device initiates the beam recovery of the neighbor cell, so as to support the beam recovery of the neighbor cell and improve the communication performance.
  • the at least one PRACH resource includes: at least one non-contention-free random access (contention-free random access, CFRA) resource dedicated to beam recovery of a neighbor cell;
  • CFRA non-contention-free random access
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device may configure at least one CFRA resource dedicated to beam restoration for a neighbor cell of the terminal device. Therefore, it is convenient for the terminal device to restore the beam of the neighbor cell based on the CFRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the at least one PRACH resource includes: at least one contention-based random access (CBRA) resource of a neighboring cell;
  • CBRA contention-based random access
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device can configure CBRA resources for the neighbor cells of the terminal device. Therefore, it is convenient for the terminal device to restore the beam of the neighbor cell based on the CBRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the implementation manner of the solution is enriched, and the robustness of the beam recovery of the neighbor cells by the terminal equipment is improved.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery in the serving cell of the terminal device;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device may configure CFRA resources for the serving cell of the terminal device.
  • the CFRA resource may be associated with the reference signal resource of the neighbor cell, so that the terminal device can restore the beam of the neighbor cell based on the CFRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the CFRA resource is a CFRA resource of the serving cell, and is used to initiate random access of the serving cell.
  • the CFRA resource is also associated with reference signal resources of neighboring cells, so that the terminal device supports beam recovery for neighboring cells, improves the communication performance of the terminal device, and improves the utilization rate of PRACH resources.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell is associated with a candidate beam of the serving cell .
  • the CFRA resource of the serving cell is also associated with the reference signal resource of the serving cell, which is used for beam recovery of the serving cell. It is beneficial to improve the utilization rate of resources.
  • the method also includes:
  • the terminal device determines the target PRACH resource associated with the target reference signal resource from the PRACH resources.
  • the terminal device may first determine whether the serving beam is a beam of a neighbor cell, and if so, the terminal device performs the above-mentioned action of determining the target PRACH resource associated with the target reference signal resource from the PRACH resources. In this way, it is convenient for the terminal device to select the target PRACH resource that can be used for the beam recovery of the neighbor cell, and perform the beam recovery of the neighbor cell based on the target PRACH resource.
  • the method before the terminal device determines the target PRACH resource associated with the target reference signal resource from at least one PRACH resource, the method further includes:
  • the terminal device measures the reference signal resources in the first resource set to obtain the measurement result.
  • the first resource set includes one or more reference signal resources of the neighbor cell, and each reference signal resource corresponds to a candidate beam of the neighbor cell; the terminal device according to the measurement As a result, a target reference signal resource is determined from one or more reference signal resources of neighboring cells.
  • the terminal device may measure one or more reference signal resources of neighboring cells, and select a target reference signal resource therefrom.
  • the target reference signal resource corresponds to a target candidate beam, that is, the terminal device selects a candidate beam, so that the terminal device initiates beam restoration to a neighbor cell and requests access to the target candidate beam.
  • the target reference signal resource is one of the reference signal resources whose signal quality in the measurement result is greater than or equal to the first threshold.
  • the terminal device can select a reference signal resource with better signal quality as the target reference signal resource, so that it is convenient for the terminal device to request access to a beam with better signal quality in the process of beam restoration in a neighbor cell, so as to improve the terminal Communication quality of the device in neighboring cells.
  • the method further includes: the terminal device receives first configuration information from the network device, where the first configuration information is used to configure the first resource set for the terminal device.
  • the network device may configure the first resource set for the terminal device, so that the terminal device selects target reference signal resources. In this way, it is convenient for the terminal device to request access to a beam with better signal quality during beam restoration in the neighbor cell, so as to improve the communication quality of the terminal device in the neighbor cell.
  • the method further includes: the terminal device receives second configuration information from the network device;
  • the second configuration information is used to configure the at least one PRACH resource, each PRACH resource in the at least one PRACH resource is associated with a reference signal resource of a neighboring cell, and different PRACH resources are associated with different reference signal resources of a neighboring cell.
  • the network device may configure at least one PRACH resource for the terminal device, each PRACH resource is associated with a reference signal resource of a neighboring cell, and different PRACH resources are associated with different reference signal resources of a neighboring cell. Therefore, after selecting the corresponding target reference signal resource, the terminal device can determine the associated PRACH resource and initiate the beam recovery of the neighbor cell to the network device. In this way, the network device and the terminal device can be aligned, and the network device can know the beam that the terminal device requests to access through the target PRACH resource corresponding to the target reference signal resource. In this way, the beam recovery of the terminal equipment to the neighboring cells is realized.
  • the reference signal resources in the first resource set include synchronization signal blocks and physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB) resources of neighbor cells and/or channel state information-reference Signal (channel state information–reference signal, CSI-RS) resource.
  • SSB synchronization signal and physical broadcast channel block
  • CSI-RS channel state information-reference Signal
  • the second aspect of the present application provides a beam recovery method, including:
  • the network device determines at least one PRACH resource of the terminal device, each PRACH resource of the at least one PRACH resource is associated with a reference signal resource of a neighbor cell of the terminal device, and different PRACH resources are associated with different reference signal resources of the neighbor cell; the network device sends the terminal device
  • the second configuration information is used to configure PRACH resources for the terminal device.
  • the network device may configure at least one PRACH resource for the terminal device, each PRACH resource is associated with a reference signal resource of a neighboring cell, and different PRACH resources are associated with different reference signal resources of a neighboring cell. Therefore, after selecting the corresponding target reference signal resource, the terminal device can determine the associated PRACH resource and initiate the beam recovery of the neighbor cell to the network device. In this way, the network device and the terminal device can be aligned, and the network device can know the beam that the terminal device requests to access through the target PRACH resource corresponding to the target reference signal resource. In this way, the beam recovery of the terminal equipment to the neighboring cells is realized.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery of a neighbor cell;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device may configure at least one CFRA resource dedicated to beam recovery for a neighbor cell of the terminal device. Therefore, it is convenient for the terminal device to restore the beam of the neighbor cell based on the CFRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the at least one PRACH resource includes: at least one CBRA resource of a neighbor cell;
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device can configure CBRA resources for the neighbor cells of the terminal device. Therefore, it is convenient for the terminal device to restore the beam of the neighbor cell based on the CBRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the implementation manner of the solution is enriched, and the robustness of the beam recovery of the neighbor cells by the terminal equipment is improved.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery in the serving cell of the terminal device;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the network device may configure CFRA resources for the serving cell of the terminal device.
  • the CFRA resource may be associated with the reference signal resource of the neighbor cell, so that the terminal device can restore the beam of the neighbor cell based on the CFRA resource. Realize that the terminal device supports the beam recovery of the neighboring cells to improve the communication performance of the terminal device.
  • the CFRA resource is a CFRA resource of the serving cell, and is used to initiate random access of the serving cell.
  • the CFRA resource is also associated with reference signal resources of neighboring cells, so that the terminal device supports beam recovery for neighboring cells, improves the communication performance of the terminal device, and improves the utilization rate of PRACH resources.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell corresponds to a candidate of the serving cell beam.
  • each CFRA resource of the serving cell is also associated with a reference signal resource of the serving cell, which is used for beam recovery of the serving cell. It is beneficial to improve the utilization rate of resources.
  • the method also includes:
  • the network device sends first configuration information to the terminal device, the first configuration information is used to configure a first resource set for the terminal device, the first resource set includes one or more reference signal resources of neighboring cells, and each reference signal resource corresponds to a neighboring cell A candidate beam for .
  • the network device may configure the first resource set for the terminal device, so that the terminal device selects target reference signal resources. In this way, it is convenient for the terminal device to request access to a beam with better signal quality during beam restoration in the neighbor cell, so as to improve the communication quality of the terminal device in the neighbor cell.
  • the reference signal resources in the first resource set include SSB resources and/or CSI-RS resources of neighbor cells.
  • two possible resource types of the reference signal resources included in the first resource set are shown, which facilitates the implementation of the solution.
  • the third aspect of the present application provides a beam failure detection method, including:
  • the terminal device determines a first resource set, the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of a neighbor cell of the terminal device; if the reference signal corresponding to the serving beam of the terminal device The resource is the reference signal resource of the neighbor cell, and the terminal device uses the first reference signal resource included in the first resource set to perform beam failure detection on the serving beam.
  • the terminal device uses part or all of the first reference signal resources included in the first resource set to beam the serving beam Failed detection. Therefore, when a beam failure occurs in a serving beam of a neighboring cell, the terminal device can perform beam failure detection on the serving beam of the neighboring cell, so as to improve the communication performance of the terminal device. That is, the terminal device can complete beam failure detection of neighboring cells without performing radio resource control (radio resource control, RRC) reconfiguration, thereby improving the communication performance of the terminal device.
  • radio resource control radio resource control
  • the method also includes:
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam.
  • the second reference signal resource and the physical downlink control carried on the serving beam Resources corresponding to a channel demodulation reference signal (physical downlink control channel demodulation reference signal, PDCCH DMRS) have a QCL relationship.
  • the reference signal resource corresponding to the serving beam of the terminal device is the reference signal resource of the serving cell, or in other words, if the serving beam of the terminal device is the beam of the serving cell; or in other words, if the serving beam
  • the reference signal resource included in the corresponding QCL information is the reference signal resource of the serving cell, and the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam. Therefore, when a beam failure occurs in the serving beam of the serving cell, the terminal device can perform beam failure detection on the serving beam of the serving cell, thereby improving communication performance.
  • the first resource set further includes at least one third reference signal resource, and at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device; the method further includes:
  • the terminal device uses the third reference signal resource included in the first resource set to perform beam failure detection on the serving beam.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device. Then if the reference signal resource corresponding to the serving beam of the terminal device is the reference signal resource of the serving cell, or in other words, if the serving beam of the terminal device is the beam of the serving cell; or in other words, if the QCL information corresponding to the serving beam.
  • the included reference signal resources are reference signal resources of the serving cell, and the terminal device uses part or all of the third reference signal resources included in the first resource set to perform beam failure detection on the serving beam.
  • the terminal device can perform beam failure detection on the serving beam of the serving cell, thereby improving communication performance. That is to say, the network device configures at least one third reference signal resource for beam failure detection for the serving cell of the terminal device, and the terminal device may preferentially use the at least one third reference signal resource for beam failure detection of the serving beam.
  • the first resource set includes a first subset and a second subset; the first subset is associated with a physical cell identifier (PCI) of a neighboring cell, and the first subset includes at least one The first reference signal resource; the second subset is associated with the PCI of the serving cell, and the second subset includes at least one third reference signal resource.
  • PCI physical cell identifier
  • the first resource set may include two subsets, respectively including reference signal resources used for beam failure detection of neighbor cells and reference signal resources used for beam failure detection of the serving cell.
  • the two subsets are respectively associated with PCIs of corresponding cells, so that the terminal device can select corresponding reference signal resources from the first resource set according to the cell to which the serving beam belongs to perform beam failure detection.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell, so that the terminal device can determine reference signal resources that can be used for beam failure detection of the neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell. In this possible implementation manner, each third reference signal resource in the first resource set is associated with the PCI of the serving cell, so as to facilitate the terminal device to determine reference signal resources that can be used for beam failure detection of the serving cell.
  • the method also includes:
  • the terminal device receives first configuration information from the network device, where the first configuration information is used to configure the first resource set.
  • the network device may configure the first resource set for the terminal device, so that the terminal device may perform beam failure detection on serving beams of neighbor cells based on the first resource set. Improve the communication performance of terminal equipment.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the at least one third reference signal resource includes SSB resources of the serving cell and/or CSI-RS resources of the serving cell. In this implementation manner, two possible resource types of the first reference signal resource and the third reference signal resource are shown, which facilitates the implementation of the solution.
  • the fourth aspect of the present application provides a beam failure detection method, including:
  • the network device determines a first resource set, the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of a neighbor cell of the terminal device; the network device sends the first configuration information to the terminal device , the first configuration information is used to configure the first resource set for the terminal device.
  • the network device can configure the first resource set for the terminal device, so that when the serving beam of the neighboring cell fails, the terminal device can perform beam failure detection on the serving beam of the neighboring cell based on the first resource set.
  • the terminal device can complete beam failure detection of neighboring cells without RRC reconfiguration, thereby improving the communication performance of the terminal device.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device. Therefore, when a beam failure occurs in the serving beam of the serving cell, the terminal device uses the third reference signal resource included in the first resource set to perform beam failure detection on the serving beam, thereby improving communication performance.
  • the first resource set includes a first subset and a second subset; the first subset is associated with the PCI of the serving cell, and the first subset includes at least one first reference signal resource; the second subset The set is associated with PCIs of neighboring cells, and the second subset includes at least one third reference signal resource.
  • the first resource set may include two subsets, respectively including reference signal resources used for beam failure detection of neighbor cells and reference signal resources used for beam failure detection of the serving cell.
  • the two subsets are respectively associated with PCIs of corresponding cells, so that the terminal device can select corresponding reference signal resources from the first resource set according to the cell to which the serving beam belongs to perform beam failure detection.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell, so that the terminal device can determine reference signal resources that can be used for beam failure detection of the neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell. In this possible implementation manner, each third reference signal resource in the first resource set is associated with the PCI of the serving cell, so as to facilitate the terminal device to determine reference signal resources that can be used for beam failure detection of the serving cell.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the at least one third reference signal resource includes SSB resources of the serving cell and/or CSI-RS resources of the serving cell. In this implementation manner, two possible resource types of the first reference signal resource and the third reference signal resource are shown, which facilitates the implementation of the solution.
  • the fifth aspect of the present application provides a beam failure detection method, including:
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device, and the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam. It can be seen from this that the terminal device realizes the beam failure detection of the neighbor cell through the technical solution of the present application.
  • the terminal device can complete beam failure detection of neighbor cells without performing RRC reconfiguration, thereby improving communication performance.
  • the method also includes:
  • the terminal device determines a first resource set, where the first resource set includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of a serving cell of the terminal device;
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device, including: if the reference signal resource corresponding to the serving beam of the terminal device is the reference signal resource of a neighbor cell accessed by the terminal device, the terminal device uses the second The second reference signal resource performs beam failure detection on the serving beam.
  • the network device configures a first resource set for the terminal device, and the first resource set includes at least one third reference signal resource, and the at least one third reference signal resource is used for the beam of the serving cell of the terminal device Failed detection. Then, if the serving beam is a beam of a neighboring cell, the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam. It realizes that the terminal equipment can complete the beam failure detection of the neighbor cell without performing RRC reconfiguration, and improves the communication performance.
  • the at least one third reference signal resource includes an SSB resource of a serving cell and/or a CSI-RS resource of a serving cell.
  • the third reference signal resource includes two possible resource types of the third reference signal resource, which facilitates the implementation of the solution.
  • the sixth aspect of the present application provides a communication device, including:
  • a processing module configured to determine a target PRACH resource associated with a target reference signal resource from at least one PRACH resource, where the target PRACH resource is a reference signal resource corresponding to a target candidate beam of a neighbor cell of the communication device;
  • the transceiver module is used for initiating beam recovery of neighboring cells based on the target PRACH resource.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery of a neighbor cell;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CBRA resource of a neighbor cell;
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam restoration in the serving cell of the communication device;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell corresponds to a candidate beam of the serving cell .
  • processing module is also used for:
  • the reference signal resource corresponding to the serving beam is a reference signal resource of a neighboring cell, perform an action of determining a target PRACH resource associated with the target reference signal resource from the at least one PRACH resource.
  • the processing module before the communication device determines the target PRACH resource associated with the target reference signal resource from the at least one PRACH resource, the processing module is further configured to:
  • the first resource set includes one or more reference signal resources of neighboring cells, and each reference signal resource corresponds to a candidate beam of neighboring cells;
  • the target reference signal resource is determined from one or more reference signal resources of neighboring cells according to the measurement result.
  • the target reference signal resource is one of the reference signal resources whose signal quality in the measurement result is greater than or equal to the first threshold.
  • the transceiver module is also used for:
  • the transceiver module is also used for:
  • the second configuration information is used to configure the at least one PRACH resource, each PRACH resource in the at least one PRACH resource is associated with a reference signal resource of a neighboring cell, and different PRACH resources are associated with different reference signal resources of a neighboring cell.
  • the reference signal resources in the first resource set include SSB resources and/or CSI-RS resources of neighbor cells.
  • the seventh aspect of the present application provides a communication device, including:
  • a processing module configured to determine at least one PRACH resource of the terminal device, where each PRACH resource of the at least one PRACH resource is associated with a reference signal resource of a neighboring cell of the terminal device, and different PRACH resources are associated with different reference signal resources of neighboring cells;
  • the transceiver module is configured to send second configuration information to the terminal device, where the second configuration information is used to configure the at least one PRACH resource for the terminal device.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery of a neighbor cell;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CBRA resource of a neighbor cell;
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery in the serving cell of the terminal device;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell corresponds to a candidate beam of the serving cell .
  • the transceiver module is also used for:
  • the first configuration information is used to configure a first resource set for the terminal device, the first resource set includes one or more reference signal resources of neighboring cells, and each reference signal resource corresponds to one of the neighboring cells candidate beams.
  • the reference signal resources in the first resource set include SSB resources and/or CSI-RS resources of neighbor cells.
  • the eighth aspect of the present application provides a communication device, including:
  • a processing module configured to determine a first resource set, where the first resource set includes at least one first reference signal resource, and at least one first reference signal resource is used for beam failure detection of a neighbor cell of the communication device; if the serving beam of the communication device corresponds to If the reference signal resource is the reference signal resource of the neighbor cell, the first reference signal resource included in the first resource set is used to perform beam failure detection on the serving beam.
  • processing module is also used to:
  • the second reference signal resource is used to perform beam failure detection on the serving beam, and the second reference signal resource is the resource corresponding to the PDCCH DMRS carried on the serving beam Has a QCL relationship.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the communication device; the processing module is further configured to:
  • the third reference signal resource included in the first resource set is used to perform beam failure detection on the serving beam.
  • the first resource set includes a first subset and a second subset; the first subset is associated with the PCI of a neighbor cell, and the first subset includes at least one first reference signal resource; the second subset The set is associated with the PCI of the serving cell, and the second subset includes at least one third reference signal resource.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell.
  • the communication device further includes a transceiver module
  • the transceiver module is configured to receive first configuration information from the network device, where the first configuration information is used to configure the first resource set.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the ninth aspect of the present application provides a communication device, including:
  • a processing module configured to determine a first resource set, where the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of a neighbor cell of the terminal device;
  • the transceiver module is configured to send first configuration information to the terminal device, and the first configuration information is used to configure the first resource set for the terminal device.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device.
  • the first resource set includes a first subset and a second subset; the first subset is associated with the PCI of the serving cell, and the first subset includes at least one first reference signal resource; the second subset The set is associated with PCIs of neighboring cells, and the second subset includes at least one third reference signal resource.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the tenth aspect of the present application provides a communication device, including:
  • the processing module is configured to use the second reference signal resource to perform beam failure detection on the serving beam of the communication device, and the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam.
  • processing module is also used to:
  • the first resource set includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of a serving cell of the communication device;
  • the processing module is used specifically for:
  • the second reference signal resource is used to perform beam failure detection on the serving beam.
  • the at least one third reference signal resource includes an SSB resource of a serving cell and/or a CSI-RS resource of a serving cell.
  • An eleventh aspect of the present application provides a communication device, where the communication device includes: a processor and a memory.
  • Computer programs or computer instructions are stored in the memory, and the processor is used to call and run the computer programs or computer instructions stored in the memory, so that the processor implements any one of the first to fifth aspects Method to realize.
  • the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.
  • a twelfth aspect of the present application provides a communication device, where the communication device includes a processor.
  • the processor is used for invoking a stored computer program or computer instruction, so that the processor realizes any one of the implementation manners of any one of the first aspect to the fifth aspect.
  • the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.
  • a thirteenth aspect of the present application provides a communication device, where the communication device includes a processor, and the processor is configured to execute any implementation manner of any one of the first aspect to the fifth aspect.
  • the fourteenth aspect of the present application provides a computer program product including instructions, which is characterized in that, when it is run on a computer, it makes the computer execute any one of any one of the first to fifth aspects. Method to realize.
  • a fifteenth aspect of the present application provides a computer-readable storage medium, including computer instructions.
  • the instructions When the instructions are run on a computer, the computer executes any of the implementation methods of any one of the first to fifth aspects. .
  • the sixteenth aspect of the present application provides a chip device, including a processor, used to call a computer program or computer instruction in the memory, so that the processor performs any of the above-mentioned aspects of the first aspect to the fifth aspect. A way of doing it.
  • the processor is coupled with the memory through an interface.
  • the terminal device determines a target PRACH resource associated with a target reference signal resource from at least one PRACH resource, and the target PRACH resource is a reference signal resource corresponding to a target candidate beam of a neighbor cell of the terminal device. Then, the terminal device initiates beam recovery of neighbor cells based on the target PRACH resource. It can be seen that the terminal device can determine the target PRACH resource associated with the target reference signal resource from at least one PRACH resource, and initiate the beam recovery of the neighbor cell based on the target PRACH resource, so as to support the beam recovery of the terminal device to the neighbor cell and improve communication performance.
  • FIG. 1 is a schematic diagram of a scene where the beam restoration method and the beam failure detection method of the embodiment of the present application are applicable;
  • FIG. 2 is a schematic diagram of another scenario where the beam restoration method and the beam failure detection method according to the embodiment of the present application are applicable;
  • Fig. 3 is a schematic structural diagram of a medium access control control element (medium access control control element, MAC CE) for activating the transmission configuration indicator state (transmission configuration indicator state, TCI-state) applicable to the beam usage method of the embodiment of the present application ;
  • medium access control control element medium access control control element, MAC CE
  • FIG. 4 is a schematic diagram of an embodiment of a beam restoration method in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of an embodiment of a beam failure detection method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another embodiment of a beam failure detection method according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 8 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 9 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • Embodiments of the present application provide a beam recovery method, a beam failure detection method and a related device, which are used for beam recovery and detection of a neighbor cell of a terminal device. Realize that terminal equipment supports beam failure detection and recovery of neighboring cells, and improve communication performance.
  • At least one means one or more, and “multiple” means two or more.
  • at least one PRACH resource includes one PRACH resource or includes multiple PRACH resources.
  • And/or describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A and B can be singular or plural. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (unit) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c.
  • a, b, c can be single or multiple.
  • 5G system new radio (new radio, NR) system
  • long term evolution (long term evolution, LTE) system LTE frequency division duplex (frequency division duplex, FDD) system
  • LTE time division duplex time division duplex, TDD)
  • UMTS universal mobile telecommunication system
  • 5G network for example, 6G mobile communication system
  • vehicle networking vehicle to everything, V2X
  • the communication system applicable to the present application includes terminal equipment and network equipment, and the communication transmission between the terminal equipment and the network equipment can be performed through beams.
  • the terminal equipment and network equipment of the present application are introduced below.
  • the terminal device may be a wireless terminal device capable of receiving network device scheduling and indication information.
  • a terminal device may be a device that provides voice and/or data connectivity to a user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem.
  • Terminal equipment is also called user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) and so on.
  • a terminal device is a device that includes wireless communication functionality (providing voice/data connectivity to the user). For example, a handheld device with a wireless connection function, or a vehicle-mounted device, etc.
  • examples of some terminal devices are: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, enhanced Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in Internet of Vehicles, wireless terminals in self driving, wireless terminals in remote medical surgery , a wireless terminal in a smart grid, a wireless terminal in a transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.
  • the wireless terminal in the Internet of Vehicles may be a vehicle-mounted device, a complete vehicle device, a vehicle-mounted module, a vehicle, and the like.
  • Wireless terminals in industrial control can be cameras, robots, etc.
  • Wireless terminals in a smart home can be TVs, air conditioners, sweepers, speakers, set-top boxes, etc.
  • a network device may be a device in a wireless network.
  • a network device may be a device deployed in a radio access network to provide a wireless communication function for a terminal device.
  • the network device may be a radio access network (radio access network, RAN) node that connects the terminal device to the wireless network, and may also be called an access network device.
  • RAN radio access network
  • Network equipment includes but not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WIFI) system in Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be used in the 5G mobile communication system network equipment.
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • base station for example, home evolved NodeB, or home Node B, HNB
  • next generation base station (next generation NodeB, gNB), transmission reception point (transmission reception point, TRP), TP in the NR system; or one or a group of base stations (including multiple antenna panels) in the 5G mobile communication system ) antenna panel; or, the network device may also be a network node constituting a gNB or a transmission point.
  • BBU or, distributed unit (distribute dunit, DU) and so on.
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and realizes functions of RRC and packet data convergence protocol (PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (radio link control, RLC) layer, the MAC layer, and the physical (physical, PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU may be divided into network devices in the RAN, or the CU may be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • FIG. 1 is a schematic diagram of a scenario in which a beam recovery method and a beam failure detection method according to an embodiment of the present application are applicable.
  • a terminal device resides in a cell of base station 1 , that is, the cell of base station 1 is a serving cell of the terminal device.
  • the terminal device also accesses a neighboring cell, that is, the cell of the base station 2 .
  • the terminal device communicates with neighbor cells through an uplink beam, and/or communicates with neighbor cells through a downlink beam.
  • the terminal device can implement the beam failure detection and beam recovery of the neighbor cell when the beam failure occurs in the neighbor cell through the technical solution of the present application.
  • the terminal device can implement the beam failure detection of the uplink beam through the technical solution of the application, and realize the beam recovery of the uplink beam of the neighbor cell through the technical solution of the application.
  • the terminal device can implement the beam failure detection of the downlink beam through the technical solution of the application, and realize the beam recovery of the downlink beam of the neighbor cell through the technical solution of the application.
  • FIG. 2 is a schematic diagram of another scenario where the beam restoration method and the beam failure detection method according to the embodiment of the present application are applicable.
  • the terminal equipment resides in the cell of base station 1, that is, the cell of base station 1 is the serving cell of the terminal equipment.
  • the terminal device also accesses a neighboring cell, that is, the cell of the base station 2 .
  • the terminal device may communicate with the serving cell through an uplink beam of the serving cell, and communicate with the neighbor cell through the downlink beam of the neighbor cell.
  • the terminal device can implement the beam failure detection and beam recovery of the downlink beam of the neighbor cell when the beam failure occurs in the downlink beam of the neighbor cell through the technical solution of the present application.
  • the terminal device may communicate with the serving cell through the downlink beam of the serving cell, and communicate with the neighbor cell through the uplink beam of the neighbor cell.
  • the terminal device can implement the beam failure detection and beam recovery of the uplink beam of the neighbor cell when the beam failure occurs in the uplink beam of the neighbor cell through the technical solution of the present application.
  • the base station corresponding to the serving cell and the base station corresponding to the neighbor cell may be the same base station or different base stations, which are not limited in this application.
  • a beam is a communication resource.
  • the beam may be a wide beam, or a narrow beam, or other types of beams, and the beam forming technology may be a beam forming technology or other technical means.
  • the beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, and a hybrid digital/analog beamforming technique. Different beams can be considered as different resources.
  • the beam can be called a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial domain setting, and a spatial setting (spatial setting), quasi-colocation (QCL) information, QCL assumption, or QCL indication, etc.
  • Beams can be indicated by a TCI-state parameter, or by a spatial relation parameter. Therefore, in this application, beams can be replaced by spatial filters, spatial filters, spatial parameters, spatial parameters, spatial settings, spatial settings, QCL information, QCL assumptions, QCL indications, TCI-state (including uplink TCI-state, downlink TCI-state), or spatial relationship, etc.
  • Beam can also be replaced with other terms representing beams, which is not limited in this application.
  • a beam used to transmit a signal may be referred to as a transmission beam (transmission beam, Tx beam), a spatial domain transmission filter (spatial domain transmission filter), a spatial transmission filter (spatial transmission filter), a spatial domain transmission parameter (spatial domain transmission parameter), Spatial transmission parameter, spatial domain transmission setting, or spatial transmission setting.
  • the downlink transmit beam can be indicated by TCI-state.
  • a beam used to receive a signal may be called a reception beam (reception beam, Rx beam), a spatial domain reception filter (spatial domain reception filter), a spatial reception filter (spatial reception filter), a spatial domain reception parameter (spatial domain reception parameter) or Spatial reception parameter, spatial domain reception setting, or spatial reception setting.
  • the uplink transmission beam may be indicated by any one of spatial relationship, uplink TCI-state, and sounding reference signal (sounding reference signal, SRS) resource (indicating the transmission beam using the SRS). Therefore, the uplink beams can also be replaced by SRS resources.
  • the transmitting beam may refer to the distribution of signal strength formed in different directions in space after the signal is transmitted by the antenna
  • the receiving beam may refer to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.
  • the beams may be wide beams, or narrow beams, or other types of beams.
  • the beamforming technique may be beamforming technique or other techniques.
  • the beamforming technology may be a digital beamforming technology, an analog beamforming technology, a hybrid digital beamforming technology, or a hybrid analog beamforming technology, and the like.
  • Beams generally correspond to resources. For example, when performing beam measurement, network devices use different resources to measure different beams. Terminal devices feed back the measured resource quality, and network devices know the quality of the corresponding beams. When data is transmitted, beam information is also indicated through its corresponding resource. For example, the network device indicates the information of the physical downlink shared channel (physical downlink shared channel, PDSCH) beam of the terminal device through the TCI field in the downlink control information (downlink control information, DCI).
  • PDSCH physical downlink shared channel
  • DCI downlink control information
  • multiple beams having the same or similar communication characteristics are regarded as one beam.
  • One or more antenna ports may be included in one beam, which are used to transmit data channels, control channels, sounding signals, and so on.
  • One or more antenna ports forming a beam can also be regarded as an antenna port set.
  • TCI-state is used to indicate the downlink beam.
  • Network devices can generate different beams, pointing to different transmission directions.
  • the network device uses a specific beam to send data to the terminal device, it needs to notify the terminal device of the information of the sending beam it uses, so that the terminal device can use the receiving beam corresponding to the sending beam to Receive data sent by network devices.
  • the network device indicates to the terminal device information about the transmit beam it uses through the TCI field in the DCI.
  • the size of the TCI field is 3 bits, which can specifically represent 8 different field values (code points).
  • Each value of the TCI field corresponds to a TCI-state index, and a TCI-state index can uniquely identify a TCI-state.
  • a TCI-state includes several parameters, through which the related information of the transmitting beam can be determined.
  • the TCI-state is configured by the network device to each terminal device. The structure of the TCI-state is as follows:
  • Each TCI-state includes its own index tci-State Id, and two quasi-co-location information (QCL-Info).
  • Each QCL-Info includes a cell (cell) field and bwp-Id, respectively indicating which bandwidth part (BWP) of which cell the TCI-state applies to, that is, different cells or different BWPs of the same cell can be configured differently The QCL-Info.
  • QCL-Info also includes a reference signal (reference signal), which is used to indicate which reference signal resource constitutes a quasi-colocated relationship.
  • the beam is generally replaced by other terms. For example, in data transmission and channel measurement, both beams correspond to reference signal resources, and one beam corresponds to one reference signal resource.
  • the QCL relationship means that two reference signal resources (or two antenna ports, antenna ports and reference signal resources are also in one-to-one correspondence) have some of the same spatial parameters, which specific spatial parameters are the same depends on the type of QCL-Info, That is, another field qcl-Type of QCL-Info.
  • qcl-Type can have four values ⁇ typeA, typeB, typeC, typeD ⁇ . Taking typeD as an example, typeD indicates that two reference signal resources have the same spatial receiving parameter information, that is, two beams have the same receiving beam. At most one of the two QCL-Info included in TCI-state can be TypeD.
  • the following is an example to specifically explain how a network device based on the 3GPP R15 protocol or 3GPP R16 protocol indicates to a terminal device the receiving beam information of the data transmission beam through the TCI-state, including the configuration, activation and indication of the TCI-state.
  • TCI-state configuration The network device configures multiple TCI-states to the terminal device through RRC signaling. These TCI-states all include a QCL-Info of type D.
  • the network device can also be configured with TCI-states that do not include QCL-info of type D, but these TCI-states are not indications for data transmission beams, so further elaboration will not be made here.
  • TCI-state activation After multiple TCI-states are configured on the network device, eight TCI-states need to be activated through MAC-CE.
  • the 8 TCI-states are in one-to-one correspondence with the 8 values of the TCI field in the DCI. That is, the 8 TCI-states corresponding to the 8 values of the TCI field of the DCI are determined by the MAC CE.
  • FIG. 3 is a schematic structural diagram of a MAC CE for activating the TCI state applicable to the embodiment of the present application.
  • the fields T0 to T(N-2)*8+07 correspond to the TCI-states whose indexes configured in the first step are 0 to (N-2)*8+7 respectively, and each field The size is 1 bit, and the value can be 0 or 1.
  • a value of 1 indicates that the TCI-state is activated, and a value of 0 indicates that the TCI-state is not activated.
  • Each MAC CE can theoretically have 8 activation fields with a value of 1, and the rest are all 0.
  • the TCI-states corresponding to the eight fields whose value is 1 are the eight TCI-states corresponding to the eight values of the TCI field in the DCI.
  • the minimum value (000) of the TCI field corresponds to the TCI-state with the smallest active index in the MAC CE, and so on, one-to-one correspondence.
  • the network device indicates a specific TCI-state through the TCI field in the DCI.
  • the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating the TCI-state corresponding to 000 used by the data transmission beam.
  • the reference signal contained in the type D QCL-Info in this TCI-state is the CSI-RS with index #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with index #1 .
  • the receiving beam corresponding to the CSI-RS with index #1 can be determined through the beam measurement process, and is known to the terminal device.
  • the terminal device can determine the receiving beam corresponding to the data transmission beam, so as to use the corresponding receiving beam to receive data. It should be noted that the descriptions of TCI-state and TCI state in this document can be replaced with each other.
  • the sending beam for uplink transmission is indicated by spatial relation, and its function is similar to TCI-state, which is used to inform the terminal device what sending beam to use for uplink transmission.
  • the target reference signal resource (which may be any one of SRS, SSB, and CSI-RS) is used to indicate the corresponding uplink beam.
  • the uplink transmission uses spatial relation #1, and the spatial relation #1 includes a target reference signal resource #2, it means that the sending beam using the uplink transmission is the sending beam or the receiving beam of the target reference signal.
  • the target reference signal resource is an uplink resource SRS, it means that the transmission beam used for uplink transmission is the transmission beam of the SRS (the transmission beam of the SRS is known).
  • the target reference signal resource is a downlink resource such as SSB or CSI-RS, indicating that the transmit beam used for uplink transmission is the receive beam of the SSB or the receive beam of the CSI-RS (the receive beam of the SSB or the receive beam of the CSI-RS beam is known).
  • Network devices can configure multiple spatial relations for terminal devices. Then activate one of them for corresponding data transmission through MAC CE.
  • Uplink transmission includes physical uplink control channel (physical uplink control channel, PUCCH), SRS, physical uplink shared channel (physical uplink shared channel, PUSCH), etc., all need corresponding spatial relation.
  • the spatial relation of PUCCH is indicated by MACCE signaling.
  • the spatial relation of SRS is also indicated through MAC CE signaling.
  • the co-location relationship is used to indicate that multiple resources have one or more identical or similar communication features. For multiple resources with a co-location relationship, the same or similar communication configurations can be used. For example, if two antenna ports have a co-location relationship, then the large-scale properties of the channel transmitting a symbol on one port can be inferred from the large-scale properties of the channel transmitting a symbol on the other port. Large-scale properties can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receive parameters, end device receive beam number, transmit/receive channel correlation, receive angle of arrival, receiver antenna Spatial correlation, main angle of arrival (Angel-of-Arrival, AoA), average angle of arrival, extension of AoA, etc.
  • the co-location indication is used to indicate whether at least two groups of antenna ports have a co-location relationship, including: the co-location indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports come from the same transmission point, or the co-location indication is used to indicate at least two Whether the channel state information reference signals sent by the antenna ports of the group come from the same beam group.
  • having a QCL relationship between two resources means that the beams corresponding to the two resources are the same beam. Having a QCL relationship between two resources can include that both resources have the same QCL TypeD.
  • the service beam of the terminal device refers to the beam currently used by the terminal device.
  • the service cell of the terminal device refers to the cell where the terminal device resides.
  • the terminal device can communicate with the serving cell through the beam of the serving cell.
  • Neighboring cell of the terminal device refers to a cell whose PCI is different from that of the serving cell of the terminal device.
  • the terminal device can communicate with the neighbor cell through the beam of the neighbor cell.
  • the network device can configure a beam failure detection resource set q0 for the terminal device in the serving cell of the terminal device, and the beam failure detection resource set q0 includes periodic CSI-RS resources.
  • the terminal device communicates with the network device through the beam of the serving cell.
  • the terminal device can use the resources in the beam failure detection resource set q0 to perform beam failure detection.
  • the terminal device can search the TCI state information for a resource corresponding to the resource corresponding to the PDCCH carried on the beam of the serving cell and has a QCL relationship.
  • Reference signal resources For example, periodic CSI-RS resources or SSB resources
  • the terminal device performs beam failure detection of the serving cell through the beam failure detection resource.
  • the network device may also configure PRACH resources dedicated to beam recovery for the serving cell of the terminal device, each PRACH resource is associated with a candidate beam of the serving cell, and different PRACH resources are associated with different candidate beams of the serving cell.
  • the terminal device can initiate beam restoration of the serving cell through the PRACH resource.
  • the terminal device can communicate with the network device through the beam of the serving cell, and can also communicate with the network device through the beam of the neighbor cell.
  • the terminal device cannot perform beam failure detection and beam recovery of the neighbor cell.
  • the present application provides a beam restoration scheme for neighbor cells, please refer to the related introduction of the embodiment shown in FIG. 4 below for details.
  • the present application also provides a beam failure detection solution for neighbor cells, please refer to the related introduction of the embodiments shown in FIG. 5 and FIG. 6 below for details.
  • the network device may refer to the network device corresponding to the serving cell of the terminal device, or may refer to the network device corresponding to the neighbor cell.
  • the network device is a base station of a serving cell or a base station corresponding to a neighbor cell.
  • the terminal device sends a signal to the serving cell means that the terminal device sends a signal to a network device corresponding to the serving cell (for example, a base station corresponding to the serving cell), and the terminal device sends a signal to a neighbor cell means that the terminal device sends a signal to a network device corresponding to a neighbor cell (for example, a base station corresponding to the serving cell).
  • the base station corresponding to the neighbor cell transmits the signal.
  • the terminal device receiving the signal of the serving cell means that the terminal device receives the signal sent by the network device corresponding to the serving cell.
  • the terminal device receiving the signal sent by the neighbor cell means that the terminal device receives the signal sent by the network device corresponding to the neighbor cell.
  • PRACH resources may also be referred to as random access resources for short.
  • FIG. 4 is a schematic diagram of an embodiment of a beam restoration method according to an embodiment of the present application.
  • beam restoration methods include:
  • the terminal device determines a target PRACH resource associated with a target reference signal resource from at least one PRACH resource.
  • the target reference signal resource is the reference signal resource corresponding to the target candidate beam of the neighbor cell of the terminal device, and the target candidate beam is used for the terminal device to initiate beam recovery.
  • the target reference signal resources include CSI-RS resources or SSB resources.
  • the terminal device determines the target reference signal resource. Then, the terminal device selects a target PRACH resource associated with the target reference signal resource from the at least one PRACH resource. It should be noted that, if the network device configures a PRACH resource for the terminal device, the terminal device may directly use the PRACH resource as a target PRACH resource. If the network device configures multiple PRACH resources for the terminal device, the terminal device determines a target reference signal resource, and selects a target PRACH resource associated with the target reference signal resource from the multiple PRACH resources.
  • a specific implementation manner for the terminal device to determine target reference signal resources is introduced below in combination with 401a to 401b.
  • the embodiment shown in FIG. 4 further includes 401a to 401b, and 401a to 401b may be performed before 401.
  • the terminal device measures reference signal resources in the first resource set to obtain a measurement result.
  • the first resource set includes one or more reference signal resources of the neighbor cell, and each reference signal resource corresponds to a candidate beam of the neighbor cell.
  • the network device configures a candidate beam detection reference signal (candidate beam detection reference signal, CBD RS) set of neighbor cells for the terminal device.
  • the CBD RS set includes one or more reference signal resources. For example, SSB resources or CSI-RS resources.
  • the CBD RS set is associated with the PCI of the neighbor cell, and the terminal device measures the reference signal resources in the CBD RS set of the neighbor cell to obtain the measurement result.
  • the measurement result includes the signal quality of the beam corresponding to each reference signal resource in the CBD RS set of the neighbor cell. For example, reference signal received power (reference signal received power, RSRP) or reference signal received quality (reference signal received quality, RSRQ) of the beam.
  • reference signal received power reference signal received power
  • RSRQ reference signal received quality
  • the reference signal resources of the neighbor cell include: SSB resources of the neighbor cell, and/or CSI-RS resources of the neighbor cell.
  • the terminal device determines a target reference signal resource from one or more reference signal resources of neighboring cells according to the measurement result.
  • the target reference signal resource is one of the reference signal resources whose signal quality is greater than or equal to the first threshold in the measurement result.
  • the first threshold may be set according to factors such as a channel state, an expected rate of the terminal device to the network, and the like.
  • the magnitude of the first threshold may be between -80dBm (decibel milliwatt) and -90dBm.
  • the measurement result includes the signal quality of the SSB0 resource, the signal quality of the SSB1 resource, the signal quality of the CSI-RS0 resource, and the signal quality of the CSI-RS1 resource.
  • the terminal device selects an SSB0 resource greater than or equal to the first threshold from the measurement result as the target reference signal resource.
  • the network device may configure the first resource set for the terminal device.
  • the embodiment shown in FIG. 4 also includes 401c, and 401c may be executed before 401a.
  • the network device sends the first configuration information to the terminal device.
  • the first configuration information is used to configure the first resource set for the terminal device.
  • the terminal device receives the first configuration information from the network device.
  • the first configuration information is carried in RRC signaling.
  • the network device configures the CBD RS set of the neighbor cell for the terminal device through RRC signaling.
  • Each PRACH resource in the at least one PRACH resource is associated with a reference signal resource of a neighbor cell, and each reference signal resource of the neighbor cell corresponds to a candidate beam of the neighbor cell.
  • the at least one PRACH resource includes at least one CFRA resource of a neighbor cell dedicated to beam restoration.
  • Each CFRA resource of the at least one CFRA resource of the neighbor cell is associated with a reference signal resource of the neighbor cell, and different CFRA resources are associated with different reference signal resources of the neighbor cell.
  • Each reference signal resource of the neighbor cell corresponds to a candidate beam of the neighbor cell.
  • Implementation mode 1 is introduced below in combination with examples shown in Table 1.
  • each CFRA resource of a neighbor cell is associated with a reference signal resource of a neighbor cell.
  • Each CFRA resource of the neighbor cell is associated with the PCI of the neighbor cell, which is used to indicate that the CFRA resource is a random access resource of the neighbor cell.
  • the terminal device can determine that the SSB0 resource is associated with the CFRA0 resource of the neighbor cell through the above Table 1. That is, the target PRACH resource is the CFRA0 resource of the neighbor cell. That is to say, if the network device configures CFRA resources for beam restoration for neighboring cells, the terminal device preferentially uses the CFRA resources for beam restoration of neighboring cells.
  • At least one CFRA resource dedicated to beam restoration of the neighbor cell and the CFRA resource dedicated to beam restoration of the serving cell of the terminal device may be configured in the same set, or may be configured in different sets respectively. If the two are configured in the same set, each CFRA resource of the terminal device is associated with the PCI of the corresponding cell; or, each CFRA resource of the neighbor cell is associated with the PCI of the neighbor cell, and each CFRA resource of the serving cell is associated with the PCI of the neighbor cell. The PCI is not associated; or, each CFRA resource of the serving cell is associated with the PCI of the serving cell, and each CFRA resource of the neighbor cell is not associated with the PCI.
  • each set is associated with the PCI of the corresponding cell; or, the set of neighbor cells is associated with the PCI of the neighbor cell, and the set of serving cells is not associated with PCI; or, the set of serving cells is associated with the serving cell PCI, the set of neighbor cells is not associated with PCI.
  • each CFRA resource of the at least one CFRA resource of the neighbor cell is also associated with a reference signal resource of the serving cell, and different CFRA resources are associated with different reference signal resources of the serving cell.
  • Each reference signal resource of the serving cell corresponds to a candidate beam of the serving cell.
  • the network device configures at least one CFRA resource dedicated to beam recovery for a neighbor cell of the terminal device, but does not configure a CFRA resource dedicated to beam recovery for the serving cell.
  • Each CFRA resource of the at least one CFRA resource of the neighbor cell may be associated with a reference signal resource of the serving cell for beam recovery of the serving cell.
  • the at least one PRACH resource includes at least one CBRA resource of a neighbor cell.
  • Each CBRA resource of the at least one CBRA resource of the neighbor cell is associated with a reference signal resource of the neighbor cell, and different CBRA resources are associated with different reference signal resources of the neighbor cell.
  • the reference signal resource of each neighbor cell corresponds to a candidate beam of the neighbor cell.
  • Implementation mode 2 is introduced below in combination with Table 2.
  • each CBRA resource of a neighbor cell is associated with a reference signal resource of a neighbor cell.
  • Each CBRA resource of the neighbor cell is associated with the PCI of the neighbor cell, which is used to indicate that the CBRA resource is a random access resource of the neighbor cell.
  • the terminal device can determine that the CSI-RS0 resource is associated with a CBRA2 resource of a neighbor cell through the above Table 2. That is, the target PRACH resource is the CBRA2 resource of the neighbor cell. That is to say, if the network device does not configure CFRA resources for beam restoration for neighboring cells, the terminal device may perform beam restoration for neighboring cells based on the CBRA resources configured by the network device for neighboring cells.
  • At least one CBRA resource of the neighbor cell and at least one CBRA resource of the serving cell of the terminal device may be configured in the same set, or may be respectively configured in different sets. If the two are configured in the same set, each CBRA resource of the terminal device is associated with the PCI of the corresponding cell; or, each CBRA resource of the neighbor cell is associated with the PCI of the neighbor cell, and the CBRA resource of the serving cell is not associated with the PCI; Alternatively, each CBRA resource of the serving cell is associated with the PCI of the serving cell, and each CBRA resource of the neighbor cell is not associated with the PCI.
  • each set is associated with the PCI of the corresponding cell; or, the set of neighbor cells is associated with the PCI of the neighbor cell, and the set of serving cells is not associated with PCI; or, the set of serving cells is associated with the serving cell PCI, the set of neighbor cells is not associated with PCI.
  • each CRBA resource in at least one CBRA resource of the neighbor cell is associated with one reference signal resource of the neighbor cell.
  • Each reference signal resource is associated with a candidate beam of a neighbor cell.
  • the at least one CBRA resource shown in the above implementation manner 2 is a CBRA resource of a neighbor cell that can be used for both beam restoration and random access of the neighbor cell.
  • the neighbor cell also includes other CBRA resources, which are used for random access of the neighbor cell, and are not used for beam recovery.
  • the at least one PRACH resource includes at least one CFRA resource dedicated to beam restoration in the serving cell of the terminal device.
  • Each CFRA resource of the at least one CFRA resource of the serving cell is associated with a reference signal resource of a neighbor cell, and different CFRA resources are associated with different reference signal resources of the neighbor cell.
  • the reference signal of each neighbor cell corresponds to a candidate beam of the neighbor cell.
  • each CFRA resource of the serving cell is associated with a reference signal resource of a neighbor cell.
  • Each CFRA resource of the serving cell is associated with the PCI of the serving cell, which is used to indicate that the CFRA resource is a random access resource of the serving cell.
  • the terminal device can determine that the CSI-RS1 resource is associated with the CFRA3 resource of the serving cell through the above Table 3. That is, the target PRACH resource is the CFRA3 resource of the serving cell. That is to say, if the network device does not configure CFRA resources for beam recovery for the neighbor cell, the terminal device may perform beam recovery of the neighbor cell based on the CFRA resource of the serving cell associated with the reference signal resource of the neighbor cell.
  • each CFRA resource of the serving cell is also associated with a reference signal resource of the serving cell, different CFRA resources are associated with different reference signal resources of the serving cell, and the reference signal resources of each serving cell correspond to the A candidate beam for a cell.
  • the network device configures at least one CFRA resource dedicated to beam recovery for the serving cell of the terminal device.
  • no CFRA resources dedicated to beam recovery are configured for the serving cell.
  • Each CFRA resource of the serving cell is not only associated with a reference signal resource of a neighbor cell, but also is associated with a reference signal resource of the serving cell, so as to be used for beam recovery of the neighbor cell. For example, as shown in Table 4:
  • the network device can configure two candidate beam detection reference signal (CDB RS) sets for the terminal device, one is the CDR RS set of the serving cell, and the other is the CDR RS set of the neighbor cell.
  • the CDR RS set of the serving cell includes one or more reference signal resources of the serving cell.
  • the CDR RS set of the neighbor cell includes one or more reference signal resources of the neighbor cell.
  • the at least one CFRA resource in the foregoing implementation manner 3 may also replace at least one CBRA resource of the serving cell.
  • Each CBRA resource in the at least one CBRA resource is associated with a reference signal resource of a neighboring cell, and different reference signal resources are associated with a candidate beam of a neighboring cell.
  • the above step 401 if the serving beam of the terminal device fails, and the reference signal resource corresponding to the serving beam is a reference signal resource of a neighboring cell, then the above step 401 is performed. That is, the terminal device can measure the reference signal resources in the CDB RS set of the neighbor cell to obtain the measurement results, and determine the target reference signal resources from the measurement results, and then select the target PRACH resources associated with the target reference signal resources from the PRACH resources .
  • the reference signal resource corresponding to the serving beam is a reference signal resource of a neighbor cell. It can also be described alternatively as follows: the reference signal resource included in the QCL information corresponding to the serving beam is a reference signal resource of a neighbor cell; or, the serving beam of the terminal device is Beams for this neighbor cell.
  • the reference signal resource included in the QCL information corresponding to the serving beam is a reference signal resource of a neighbor cell; or, the serving beam of the terminal device is Beams for this neighbor cell.
  • the terminal device measures the reference signal resources in the CDR RS set of the serving cell, and obtains A reference signal resource greater than the first threshold is selected.
  • the terminal device determines the CFRA resource corresponding to the reference signal resource greater than the first threshold based on the above Table 4, and initiates beam recovery of the serving cell based on the CFRA resource.
  • the reference signal resource corresponding to the serving beam is the reference signal resource of the serving cell. It can also be alternatively described as: the reference signal resource included in the QCL information corresponding to the serving beam is the reference signal resource of the serving cell; or, the serving beam is the reference signal resource of the serving cell. Cell beams.
  • At least one PRACH resource of the terminal device that there are multiple configuration modes of the at least one PRACH resource, and the terminal device can initiate beam recovery of neighbor cells based on different PRACH resource configuration modes.
  • the robustness of the beam recovery of the neighbor cells by the terminal equipment is improved.
  • the terminal device can only initiate services based on the CFRA resources of the serving cell.
  • the beam recovery of the cell cannot initiate the beam recovery of the neighbor cell.
  • the network device does not configure CFRA resources dedicated to beam recovery for the serving cell, but the network device configures other PRACH resources for the serving cell, for example, CBRA resources of the serving cell. Then the terminal device can initiate the beam restoration of the serving cell based on other PRACH resources of the serving cell, but cannot initiate the beam restoration of the neighbor cell.
  • the embodiment shown in FIG. 4 further includes 401d, and 401d may be performed before 401.
  • the network device sends the second configuration information to the terminal device.
  • the second configuration information is used to configure PRACH resources for the terminal device.
  • the network device may send the second configuration information to the terminal device through RRC signaling.
  • the foregoing 401c and 401d are implementations in which the network device configures the PRACH resource and the first resource set for the terminal device respectively through two different configuration information.
  • the network device may also configure the PRACH resource and the first resource set for the terminal device through the same configuration information, which is not limited in this application.
  • the terminal device initiates beam recovery of neighbor cells based on the target PRACH resource.
  • the terminal device may send a pilot signal to a neighbor cell on the target PRACH resource, so as to request access to a beam corresponding to a reference signal resource associated with the PRACH resource.
  • the terminal device determines a target PRACH resource associated with a target reference signal resource from the at least one PRACH resource, and the target PRACH resource is a reference signal resource corresponding to a target candidate beam of a neighbor cell of the terminal device. Then, the terminal device initiates beam recovery of neighbor cells based on the target PRACH resource. It can be known from this that the terminal device can determine the target PRACH resource associated with the target reference signal resource from at least one PRACH resource, and initiate beam recovery of the neighbor cell based on the target PRACH resource. In this way, the terminal device initiates the beam restoration of the neighbor cell, so as to support the beam restoration of the neighbor cell by the terminal device, and improve the communication performance.
  • the terminal device may first perform beam failure detection of the neighbor cell.
  • the beam failure detection determines that the beam of the neighbor cell is unavailable (for example, the signal quality of the beam is poor)
  • the terminal device may execute the solution of the embodiment shown in FIG. 4 above to enable the terminal device to initiate beam recovery of the neighbor cell.
  • the terminal device can realize the beam failure detection of the neighbor cell through the solution of the embodiment shown in Figure 5 or Figure 6 below, please refer to the related introduction of the embodiment shown in Figure 5 or Figure 6 below for details, and will not repeat them here .
  • the relationship between the terminal device, the serving cell, and the neighbor cell includes the following three possible implementation manners.
  • Implementation mode 1 The terminal device performs uplink communication with the serving cell through the uplink beam of the serving cell, and communicates with the neighbor cell through the downlink beam of the neighbor cell.
  • the serving beam of the terminal device is the downlink beam of the neighbor cell. If the beam failure occurs in the downlink beam of the neighbor cell, the terminal device may initiate beam recovery to the neighbor cell through the process of the embodiment shown in FIG. 4 above. That is, the terminal device requests the neighbor cell to access the downlink beam corresponding to the reference signal resource of the neighbor cell associated with the target PRACH resource.
  • the terminal device can also initiate the beam recovery of the neighbor cell in the following manner: after the terminal device determines the target reference signal resources, the terminal device can send The identity of the target reference signal resource is then sent by the serving cell to the neighbor cell to realize the beam recovery of the terminal equipment to the neighbor cell.
  • Implementation mode 2 The terminal device performs downlink communication with the serving cell through the downlink beam of the serving cell, and performs uplink communication with the neighbor cell through the uplink beam of the neighbor cell.
  • the serving beam of the terminal device is the uplink beam of the neighbor cell. If the uplink beam of the neighbor cell fails, the terminal device can initiate beam recovery to the neighbor cell through the process of the embodiment shown in Figure 4 above. That is, the terminal device requests the neighbor cell to access the uplink beam corresponding to the reference signal resource of the neighbor cell associated with the target PRACH resource.
  • the terminal device can measure the CDB RS set of the serving cell and determine a reference signal resource greater than or equal to the first threshold. Then, the terminal device may send the identifier of the reference signal resource greater than or equal to the first threshold to the neighbor cell through the uplink beam of the neighbor cell. The neighbor cell then sends the identifier of the reference signal resource greater than or equal to the first threshold to the serving cell, so that the terminal device initiates beam recovery of the serving cell.
  • Implementation mode 3 The terminal device performs uplink communication with the neighbor cell through the uplink beam of the neighbor cell, and performs downlink communication with the neighbor cell through the downlink beam of the neighbor cell.
  • the serving beam of the terminal device is the uplink beam of the neighbor cell or the downlink beam of the neighbor cell.
  • the terminal device may initiate beam recovery to the neighbor cell through the process of the embodiment shown in FIG. 4 above. That is, the terminal device requests the neighbor cell to access the uplink beam corresponding to the reference signal resource of the neighbor cell associated with the target PRACH resource.
  • the terminal device may initiate beam recovery to the neighbor cell through the process of the embodiment shown in FIG. 4 above. That is, the terminal device requests the neighbor cell to access the downlink beam corresponding to the reference signal resource of the neighbor cell associated with the target PRACH resource.
  • FIG. 5 is a schematic diagram of an embodiment of a beam failure detection method according to an embodiment of the present application.
  • beam failure detection methods include:
  • the terminal device determines a first resource set.
  • the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of neighbor cells of the terminal device.
  • the first resource set may also be called a first beam failure detection reference signal (BFD RS) set, and this application does not specifically limit the name of the set.
  • the first reference signal resource may also be called the BFD RS resource of the neighbor cell.
  • the at least one first reference signal resource includes SSB resources and/or CSI-RS resources of neighbor cells.
  • the first resource set includes at least one first reference signal resource.
  • the BFD RS set of the neighbor cell is associated with the PCI of the neighbor cell, and the BFD RS set includes the BFD RS resources of the neighbor cell.
  • the BFD RS resource of the neighbor cell includes the SSB resource or the CSI-RS resource of the neighbor cell.
  • Each BFD RS resource corresponds to a candidate beam of a neighboring cell.
  • the first resource set includes the at least one first reference signal resource and at least one third reference signal resource.
  • the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device.
  • the first set of resources includes both the BFD RS resources of the neighbor cell and the BFD RS resources of the serving cell.
  • the following introduces two possible forms of the first resource set in this implementation manner.
  • the first resource set includes the at least one first reference signal resource and at least one third reference signal resource.
  • Each first reference signal resource is associated with the PCI of the neighbor cell; and/or, each third reference signal resource is associated with the PCI of the serving cell.
  • the first resource set is BFD RS set 0 shown in Table 6,
  • Each BFD RS resource in BFD RS set 0 is associated with the PCI of the corresponding cell.
  • Each reference signal resource of the serving cell in BFD RS set 0 is associated with the PCI of the serving cell.
  • the reference signal resources of the neighboring cells do not need to display the corresponding PCI, and the reference signal resources without the corresponding PCI in Table 7 are the reference signal resources of the neighboring cells.
  • Each reference signal resource of a neighbor cell in BFD RS set 0 is associated with the PCI of the neighbor cell.
  • the reference signal resources of the serving cell do not need to display the corresponding PCI, and the reference signal resources that do not carry the corresponding PCI in Table 8 are the reference signal resources of the serving cell.
  • the first resource set includes a first subset and a second subset.
  • the first subset includes the at least first reference signal resource
  • the second subset includes the at least one third reference signal resource.
  • the first subset is associated with the PCIs of neighboring cells, and/or the second subset is associated with the PCIs of the serving cell.
  • the first subset is BFD RS set 1
  • the second subset is BFD RS set 2.
  • the first resource set includes at least one first reference signal resource.
  • the network device may also configure a second resource set, where the second resource set includes at least one third reference signal resource. That is to say, the BFD RS resources of the neighbor cell and the BFD RS resources of the serving cell are configured in different sets.
  • the first resource set is associated with the PCI of the neighbor cell; and/or, the second resource set is associated with the PCI of the serving cell.
  • the embodiment shown in FIG. 5 further includes 501a, and 501a may be performed before 501.
  • the network device sends the first configuration information to the terminal device.
  • the first configuration information is used to configure the first resource set.
  • the terminal device receives the first configuration information from the network device.
  • the network device sends the first configuration information to the terminal device through RRC signaling, so as to configure the first resource set for the terminal device.
  • the terminal device uses the first reference signal resource included in the first resource set to perform beam failure detection on the serving beam.
  • the terminal device may use part or all of the first reference signal resources in the first resource set to perform beam failure detection on the serving beam .
  • the terminal device may receive reference signals from neighboring cells on the part or all of the first reference signal resources, and measure the signal quality of the reference signals. If the signal quality of the reference signal is determined to be less than the preset threshold after multiple measurements, the terminal device may determine that the serving beam is no longer available, and the terminal device may initiate beam recovery to a neighbor cell to request access to a new beam. If it is determined through multiple measurements that the signal quality of the reference signal is greater than the preset threshold, the terminal device may determine that the serving beam is available, and continue to use the serving beam to communicate with neighbor cells.
  • the above 502 can also be alternatively described as: if the reference signal resource included in the QCL information corresponding to the serving beam of the terminal device is a reference signal resource of a neighbor cell, then the terminal device uses the first reference signal resource included in the first resource set for the terminal device.
  • the serving beam performs beam failure detection; or, if the serving beam of the terminal device is a beam of a neighbor cell, the terminal device uses the first reference signal resource included in the first resource set to perform beam failure detection on the serving beam of the terminal device.
  • the terminal device determines that the reference signal resource included in the QCL information corresponding to the serving beam comes from a neighbor cell.
  • the terminal device determines the BFD RS resource corresponding to the neighbor cell, and performs beam failure detection based on the BFD RS resource of the neighbor cell.
  • the embodiment shown in FIG. 5 further includes 503. 503 may be performed after 501.
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam.
  • the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam of the terminal device. It can be understood that the beam corresponding to the second reference signal resource is the same as or similar to the beam corresponding to the resource corresponding to the PDCCH DMRS carried on the serving beam.
  • the first resource set only includes at least one first reference signal resource of a neighbor cell. If the reference signal resource corresponding to the serving beam of the terminal device is the reference signal resource of the serving cell, the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device. For example, the terminal device receives the reference signal sent by the serving cell on the second reference signal resource, and measures the signal quality of the reference signal. If it is determined after multiple measurements that the signal quality of the reference signal is less than the preset threshold, the terminal device may determine that the serving beam is no longer available, and the terminal device may initiate beam recovery to the serving cell to request access to a new beam. If it is determined after multiple measurements that the signal quality of the reference signal is greater than the preset threshold, the terminal device may determine that the serving beam is available, and continue to use the serving beam to communicate with the serving cell.
  • the above 503 can also be alternatively described as: if the serving beam of the terminal device is a beam of the serving cell, the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device; or, if the serving beam of the terminal device corresponds to The reference signal resource included in the QCL information is the reference signal resource of the serving cell, and the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the embodiment shown in FIG. 5 further includes 504.
  • 504 may be performed after 501.
  • the terminal device uses the third reference signal resource included in the first resource set to perform beam failure detection on the serving beam.
  • the first resource set includes at least one first reference signal resource and at least one third reference signal resource.
  • the terminal device uses part or all of the third reference signal resources in the first resource set to perform beam failure detection on the serving beam.
  • the terminal device receives the reference signal sent by the serving cell on part or all of the third reference signal resources in the first resource set, and measures the signal quality of the reference signal. If it is determined after multiple measurements that the signal quality of the reference signal is less than the preset threshold, the terminal device may determine that the serving beam is no longer available, and the terminal device may initiate beam recovery to the serving cell to request access to a new beam. If it is determined after multiple measurements that the signal quality of the reference signal is greater than the preset threshold, the terminal device may determine that the serving beam is available, and continue to use the serving beam to communicate with the serving cell.
  • the terminal device preferentially uses the at least one third reference signal resource for the detection of the serving cell. Beam failure detection.
  • the above 504 can also be alternatively described as: if the reference signal resource included in the QCL information corresponding to the serving beam of the terminal device is the reference signal resource of the serving cell, then the terminal device uses the third reference signal resource included in the first resource set to pair the serving beam Perform beam failure detection; or, if the serving beam of the terminal device is a beam of the serving cell, the terminal device uses the third reference signal resource included in the first resource set to perform beam failure detection on the serving beam.
  • the terminal device determines that the reference signal resource included in the QCL information corresponding to the serving beam comes from the serving cell.
  • the terminal device determines the BFD RS resource of the serving cell, and performs beam failure detection on the serving beam based on the BFD RS resource of the serving cell.
  • the relationship between the terminal device, the serving cell, and the neighbor cell includes the following three possible implementation manners.
  • Implementation mode 1 The terminal device performs uplink communication with the serving cell through the uplink beam of the serving cell, and communicates with the neighbor cell through the downlink beam of the neighbor cell.
  • the serving beam of the terminal device is the downlink beam of the neighbor cell. If a beam failure occurs in the downlink beam of the neighbor cell, the terminal device may perform beam failure detection on the downlink beam of the neighbor cell through the process of the embodiment shown in FIG. 5 above.
  • Implementation mode 2 The terminal device performs downlink communication with the serving cell through the downlink beam of the serving cell, and performs uplink communication with the neighbor cell through the uplink beam of the neighbor cell.
  • the serving beam of the terminal device is the downlink beam of the serving cell. If a beam failure occurs in the downlink beam of the serving cell, the terminal device may perform beam failure detection on the downlink beam of the serving cell through the process of the embodiment shown in FIG. 5 above.
  • Implementation mode 3 The terminal device performs uplink communication with the neighbor cell through the uplink beam of the neighbor cell, and performs downlink communication with the neighbor cell through the downlink beam of the neighbor cell.
  • the serving beam of the terminal device is the downlink beam of the neighbor cell. If a beam failure occurs in the downlink beam of the neighbor cell, the terminal device may perform beam failure detection on the downlink beam of the neighbor cell through the process of the embodiment shown in FIG. 5 above.
  • the terminal device determines the first resource set.
  • the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of neighbor cells of the terminal device. If the reference signal resource corresponding to the serving beam of the terminal device is a reference signal resource of a neighboring cell, the terminal device uses the first reference signal resource included in the first resource set to perform beam failure detection on the serving beam. It can be seen from this that the terminal device realizes the beam failure detection of the neighbor cell through the technical solution of the present application. The terminal device can complete beam failure detection of neighbor cells without performing RRC reconfiguration, thereby improving communication performance.
  • FIG. 6 is a schematic diagram of another embodiment of a beam failure detection method according to the embodiment of the present application.
  • beam failure detection methods include:
  • the terminal device uses the second reference signal resource to perform beam failure detection on a serving beam of the terminal device.
  • the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam of the terminal device. It can be understood that the beam corresponding to the second reference signal resource is the same as or similar to the beam corresponding to the resource corresponding to the PDCCH DMRS carried on the serving beam.
  • the second reference signal resources are CSI-RS resources or SSB resources.
  • the network device does not configure reference signal resources for beam failure detection for the serving cell and neighbor cells of the terminal device. Regardless of whether the serving beam is a beam of a serving cell or a beam of a neighboring cell, if a beam failure occurs on the serving beam, the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the network device configures a first resource set for the terminal device, and the first resource set is used for beam failure detection of the serving cell.
  • the first resource set includes at least one third reference signal resource.
  • the embodiment shown in FIG. 6 further includes 601a, and 601a may be executed before 601.
  • the network device sends second configuration information to the terminal device.
  • the second configuration information is used to configure the first resource set.
  • the terminal device receives the second configuration information from the network device.
  • the network device sends the second configuration information to the terminal device through RRC signaling.
  • the first resource set includes the at least one third reference signal resource set, and the at least one third reference resource is used for beam failure detection of the serving cell.
  • the first resource set is BFD RS set 0, and the BFD RS set 0 is associated with the PCI of the serving cell.
  • BFD RS set 0 includes BFD RS resources of the serving cell.
  • the above 601 specifically includes: if the reference signal resource corresponding to the serving beam of the terminal device is a reference signal resource of a neighbor cell, the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the reference signal resource included in the QCL information corresponding to the serving beam is a reference signal resource of a neighboring cell
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the embodiment shown in FIG. 6 further includes 602, which may be performed after 601.
  • the terminal device uses the first resource set to perform beam failure detection on the serving beam.
  • the above 602 can be alternatively described as: if the serving beam of the terminal device is a beam of the serving cell, the terminal device uses the first set of resources to perform beam failure detection on the serving beam; or, if the reference included in the QCL information corresponding to the serving beam of the terminal device
  • the signal resource is a reference signal resource of the serving cell, and the terminal device uses the first set of resources to perform beam failure detection on the serving beam. That is to say, in the above 602, if the network device configures at least one third reference signal resource for the beam failure detection of the serving cell for the terminal device, the terminal device preferentially uses the at least one third reference signal resource for the detection of the serving cell. Beam failure detection.
  • the terminal device uses the second reference signal resource to perform beam failure detection on the serving beam of the terminal device.
  • the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam of the terminal device. It can be seen from this that the terminal device realizes the beam failure detection of the neighbor cell through the technical solution of the present application.
  • the terminal device can complete beam failure detection of neighbor cells without performing RRC reconfiguration, thereby improving communication performance.
  • FIG. 5 and FIG. 6 show various possible implementation schemes in which the network device configures beam failure detection resources for the terminal device, and the terminal device performs beam failure detection of neighboring cells based on the beam failure detection resources configured by the network device. detection. Therefore, the terminal device can complete the beam failure detection of the neighbor cell without performing RRC reconfiguration, and the communication performance is improved.
  • the communication device provided by the embodiment of the present application is described below.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication apparatus 700 may be configured to execute the process performed by the terminal device in the above embodiment shown in FIG. 4 .
  • the relevant introduction in the above embodiment shown in FIG. 4 please refer to the relevant introduction in the above embodiment shown in FIG. 4 .
  • the communication device 700 includes a processing module 701 and a transceiver module 702 .
  • the processing module 701 is used for data or signal processing.
  • the transceiver module 702 is used to implement corresponding communication functions, and the transceiver module 702 may also be called a communication interface or a communication module.
  • the communication device 700 may further include a storage module, which may be used to store instructions and/or data, and the processing module 701 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 4 shows the example.
  • a storage module which may be used to store instructions and/or data
  • the processing module 701 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 4 shows the example.
  • the communication apparatus 700 may be used to perform the actions performed by the terminal device in the embodiment shown in FIG. 4 above.
  • the communication apparatus 700 may be a terminal device or a component configurable in a terminal device.
  • the processing module 701 is configured to perform processing-related operations on the terminal device side in the embodiment shown in FIG. 4 above.
  • the transceiver module 702 is configured to perform reception-related operations on the terminal device side in the embodiment shown in FIG. 4 above.
  • the transceiver module 702 may include a sending module and a receiving module.
  • the sending module is configured to perform the sending operation in the above embodiment shown in FIG. 4 .
  • the receiving module is configured to perform the receiving operation in the above embodiment shown in FIG. 4 .
  • the communication device 700 may include a sending module instead of a receiving module.
  • the communication device 700 may include a receiving module instead of a sending module. Specifically, it may depend on whether the above solution executed by the communication device 700 includes a sending action and a receiving action.
  • the communication device 700 can be used in the following scenarios:
  • a processing module 701 configured to determine a target PRACH resource associated with a target reference signal resource from at least one PRACH resource, where the target PRACH resource is a reference signal resource corresponding to a target candidate beam of a neighbor cell of the communication device 700;
  • the transceiver module 702 is configured to initiate beam recovery of neighboring cells based on the target PRACH resource.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery of a neighbor cell;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CBRA resource of a neighbor cell;
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery in the serving cell of the communication device 700;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell corresponds to a candidate beam of the serving cell .
  • processing module 701 is also used to:
  • the reference signal resource corresponding to the serving beam is a reference signal resource of a neighboring cell, perform an action of determining a target PRACH resource associated with the target reference signal resource from the at least one PRACH resource.
  • the processing module 701 before the communication device 700 determines the target PRACH resource associated with the target reference signal resource from the at least one PRACH resource, the processing module 701 is further configured to:
  • the first resource set includes one or more reference signal resources of neighboring cells, and each reference signal resource corresponds to a candidate beam of neighboring cells;
  • the target reference signal resource is determined from one or more reference signal resources of neighboring cells according to the measurement result.
  • the target reference signal resource is one of the reference signal resources whose signal quality in the measurement result is greater than or equal to the first threshold.
  • the transceiver module 702 is also used to:
  • First configuration information from the network device is received, where the first configuration information is used to configure a first resource set for the communication apparatus 700 .
  • the transceiver module 702 is also used to:
  • the second configuration information is used to configure the at least one PRACH resource, each PRACH resource in the at least one PRACH resource is associated with a reference signal resource of a neighboring cell, and different PRACH resources are associated with different reference signal resources of a neighboring cell.
  • the reference signal resources in the first resource set include SSB resources and/or CSI-RS resources of neighbor cells.
  • the processing module 701 in the foregoing embodiments may be implemented by at least one processor or processor-related circuits.
  • the transceiver module 702 may be implemented by a transceiver or transceiver-related circuits.
  • the transceiver module 702 may also be referred to as a communication module or a communication interface.
  • the storage module can be realized by at least one memory.
  • FIG. 8 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 may be configured to execute the process performed by the network device in the above-mentioned embodiment shown in FIG. 4 .
  • the relevant introduction in the above-mentioned embodiment shown in FIG. 4 please refer to the relevant introduction in the above-mentioned embodiment shown in FIG. 4 .
  • the communication device 800 includes a processing module 801 and a transceiver module 802 .
  • the processing module 801 is used for data or signal processing.
  • the transceiver module 802 is used to implement corresponding communication functions, and the transceiver module 802 may also be called a communication interface or a communication module.
  • the communication device 800 may further include a storage module, which may be used to store instructions and/or data, and the processing module 801 may read the instructions and/or data in the storage module, so that the communication device implements the preceding figure. 4 shows the example.
  • the communication apparatus 800 may be used to perform the actions performed by the network device in the embodiment shown in FIG. 4 above.
  • the communication apparatus 800 may be a network device or a component configurable in the network device.
  • the processing module 801 is configured to perform processing-related operations on the network device side in the embodiment shown in FIG. 4 above.
  • the transceiver module 802 is configured to perform reception-related operations on the network device side in the embodiment shown in FIG. 4 above.
  • the transceiver module 802 may include a sending module and a receiving module.
  • the sending module is configured to perform the sending operation in the above embodiment shown in FIG. 4 .
  • the receiving module is configured to perform the receiving operation in the above embodiment shown in FIG. 4 .
  • the communication device 800 may include a sending module instead of a receiving module.
  • the communication device 800 may include a receiving module instead of a sending module. Specifically, it may depend on whether the above solution executed by the communication device 800 includes a sending action and a receiving action.
  • the communication device 800 can be used to perform the following schemes:
  • the processing module 801 is configured to determine at least one PRACH resource of the terminal device, each PRACH resource of the at least one PRACH resource is associated with a reference signal resource of a neighboring cell of the terminal device, and different PRACH resources are associated with different reference signal resources of neighboring cells;
  • the transceiver module 802 is configured to send second configuration information to the terminal device, where the second configuration information is used to configure the multiple PRACH resources for the terminal device.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery of a neighbor cell;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell
  • different CFRA resources are associated with different reference signal resources of a neighboring cell
  • each reference signal resource of a neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CBRA resource of a neighbor cell;
  • Each CBRA resource is associated with a reference signal resource of a neighboring cell
  • different CBRA resources are associated with different reference signal resources of a neighboring cell
  • the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • the at least one PRACH resource includes: at least one CFRA resource dedicated to beam recovery in the serving cell of the terminal device;
  • Each CFRA resource is associated with a reference signal resource of a neighboring cell, different CFRA resources are associated with different reference signal resources of a neighboring cell, and the reference signal resource of each neighboring cell corresponds to a candidate beam of a neighboring cell.
  • each CFRA resource is also associated with a reference signal resource of the serving cell
  • different CFRA resources are associated with different reference signal resources of the serving cell
  • each reference signal resource of the serving cell corresponds to a candidate beam of the serving cell .
  • the transceiver module 802 is also used to:
  • the first configuration information is used to configure a first resource set for the terminal device, the first resource set includes one or more reference signal resources of neighboring cells, and each reference signal resource corresponds to one of the neighboring cells candidate beams.
  • the reference signal resources in the first resource set include SSB resources and/or CSI-RS resources of neighbor cells.
  • the processing module 801 in the foregoing embodiments may be implemented by at least one processor or processor-related circuits.
  • the transceiver module 802 may be implemented by a transceiver or transceiver-related circuits.
  • the transceiver module 802 may also be referred to as a communication module or a communication interface.
  • the storage module can be realized by at least one memory.
  • FIG. 9 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication apparatus 900 may be configured to execute the process performed by the terminal device in the above embodiment shown in FIG. 5 .
  • the relevant introduction in the above embodiment shown in FIG. 5 please refer to the relevant introduction in the above embodiment shown in FIG. 5 .
  • the communication device 900 includes a processing module 901 .
  • the communication device 900 also includes a transceiver module 902 .
  • the processing module 901 is used for data or signal processing.
  • the transceiver module 902 is used to implement corresponding communication functions, and the transceiver module 902 may also be called a communication interface or a communication module.
  • the communication device 900 may further include a storage module, which may be used to store instructions and/or data, and the processing module 901 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 5 shows the embodiment.
  • a storage module which may be used to store instructions and/or data
  • the processing module 901 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 5 shows the embodiment.
  • the communication apparatus 900 may be used to perform the actions performed by the terminal device in the embodiment shown in FIG. 5 above.
  • the communication device 900 may be a terminal device or a component configurable in a terminal device.
  • the processing module 901 is configured to perform processing-related operations on the terminal device side in the embodiment shown in FIG. 5 above.
  • the transceiver module 902 is configured to perform reception-related operations on the terminal device side in the embodiment shown in FIG. 5 above.
  • the transceiver module 902 may include a sending module and a receiving module.
  • the sending module is configured to perform the sending operation in the above embodiment shown in FIG. 5 .
  • the receiving module is configured to perform the receiving operation in the above embodiment shown in FIG. 5 .
  • the communication device 900 may include a sending module instead of a receiving module.
  • the communication device 900 may include a receiving module instead of a sending module. Specifically, it may depend on whether the above solution executed by the communication device 900 includes a sending action and a receiving action.
  • the communication device 900 can be used to perform the following solutions:
  • the processing module 901 is configured to determine a first resource set, where the first resource set includes at least one first reference signal resource, and at least one first reference signal resource is used for beam failure detection of a neighbor cell of the communication device; if the serving beam of the communication device The corresponding reference signal resource is the reference signal resource of the neighbor cell, and the first reference signal resource included in the first resource set is used to perform beam failure detection on the serving beam.
  • processing module 901 is also used to:
  • the second reference signal resource is used to perform beam failure detection on the serving beam, and the second reference signal resource is the resource corresponding to the PDCCH DMRS carried on the serving beam Has a QCL relationship.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the communication device; the processing module 901 is further configured to:
  • the third reference signal resource included in the first resource set is used to perform beam failure detection on the serving beam.
  • the first resource set includes a first subset and a second subset; the first subset is associated with the PCI of a neighbor cell, and the first subset includes at least one first reference signal resource; the second subset The set is associated with the PCI of the serving cell, and the second subset includes at least one third reference signal resource.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell.
  • the communication device further includes a transceiver module 902;
  • the transceiver module 902 is configured to receive first configuration information from a network device, where the first configuration information is used to configure a first resource set.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the processing module 901 in the foregoing embodiments may be implemented by at least one processor or processor-related circuits.
  • the transceiver module 902 may be implemented by a transceiver or transceiver-related circuits.
  • the transceiver module 902 may also be referred to as a communication module or a communication interface.
  • the storage module can be realized by at least one memory.
  • the communication apparatus 900 shown in FIG. 9 may also be used to execute the steps performed by the terminal device in the embodiment shown in FIG. 6 .
  • the communication device 900 may also be used to perform the following solutions:
  • the processing module 901 is configured to use the second reference signal resource to perform beam failure detection on the serving beam of the communication device 900, and the second reference signal resource has a QCL relationship with the resource corresponding to the PDCCH DMRS carried on the serving beam.
  • processing module 901 is also used to:
  • the first resource set includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of a serving cell of the communication device 900;
  • the processing module 901 is specifically used for:
  • the second reference signal resource is used to perform beam failure detection on the serving beam.
  • the at least one third reference signal resource includes an SSB resource of a serving cell and/or a CSI-RS resource of a serving cell.
  • FIG. 10 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 1000 may be used to execute the process performed by the network device in the above embodiment shown in FIG. 5 .
  • the relevant introduction in the above embodiment shown in FIG. 5 please refer to the relevant introduction in the above embodiment shown in FIG. 5 .
  • the communication device 1000 includes a processing module 1001 and a transceiver module 1002 .
  • the processing module 1001 is used for data or signal processing.
  • the transceiver module 1002 is used to implement corresponding communication functions, and the transceiver module 1002 may also be called a communication interface or a communication module.
  • the communication device 1000 may further include a storage module, which may be used to store instructions and/or data, and the processing module 1001 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 5 shows the embodiment.
  • a storage module which may be used to store instructions and/or data
  • the processing module 1001 may read instructions and/or data in the storage module, so that the communication device implements the aforementioned 5 shows the embodiment.
  • the communication apparatus 1000 may be used to perform the actions performed by the network device in the embodiment shown in FIG. 5 above.
  • the communication apparatus 1000 may be a network device or a component configurable in the network device.
  • the processing module 1001 is configured to perform processing-related operations on the network device side in the embodiment shown in FIG. 5 above.
  • the transceiver module 1002 is configured to perform reception-related operations on the network device side in the embodiment shown in FIG. 5 above.
  • the transceiver module 1002 may include a sending module and a receiving module.
  • the sending module is configured to perform the sending operation in the above embodiment shown in FIG. 5 .
  • the receiving module is configured to perform the receiving operation in the above embodiment shown in FIG. 5 .
  • the communication device 1000 may include a sending module instead of a receiving module.
  • the communication device 1000 may include a receiving module instead of a sending module. Specifically, it may depend on whether the above solution executed by the communication device 1000 includes a sending action and a receiving action.
  • the communication device 1000 can be used to implement the following solutions:
  • the processing module 1001 is configured to determine a first resource set, where the first resource set includes at least one first reference signal resource, and the at least one first reference signal resource is used for beam failure detection of a neighbor cell of the terminal device;
  • the transceiver module 1002 is configured to send first configuration information to the terminal device, where the first configuration information is used to configure the first resource set for the terminal device.
  • the first resource set further includes at least one third reference signal resource, and the at least one third reference signal resource is used for beam failure detection of the serving cell of the terminal device.
  • the first resource set includes a first subset and a second subset; the first subset is associated with the PCI of the serving cell, and the first subset includes at least one first reference signal resource; the second subset The set is associated with PCIs of neighboring cells, and the second subset includes at least one third reference signal resource.
  • each first reference signal resource in the first resource set is associated with a PCI of a neighbor cell.
  • each third reference signal resource in the first resource set is associated with the PCI of the serving cell.
  • the at least one first reference signal resource includes an SSB resource of a neighbor cell and/or a CSI-RS resource of a neighbor cell.
  • the embodiment of the present application also provides a communication device 1100 .
  • the communication device 1100 includes a processor 1110, the processor 1110 is coupled to a memory 1120, the memory 1120 is used to store computer programs or instructions and/or data, and the processor 1110 is used to execute the computer programs or instructions and/or data stored in the memory 1120, The methods in the above method embodiments are executed.
  • the communication device 1100 includes one or more processors 1110 .
  • the communication device 1100 may further include a memory 1120 .
  • the communication device 1100 may include one or more memories 1120 .
  • the memory 1120 may be integrated with the processor 1110, or set separately.
  • the communication device 1100 may further include a transceiver 1130, and the transceiver 1130 is used for receiving and/or sending signals.
  • the processor 1110 is configured to control the transceiver 1130 to receive and/or send signals.
  • the communications apparatus 1100 is configured to implement the operations performed by the terminal device in the above method embodiments.
  • the processor 1110 is configured to implement processing-related operations performed by the terminal device in the above method embodiments
  • the transceiver 1130 is configured to implement transceiving-related operations performed by the terminal device in the above method embodiments.
  • the communication apparatus 1100 is used to implement the operations performed by the network device in the above method embodiments.
  • the processor 1110 is configured to implement the processing-related operations performed by the network device in the above method embodiments
  • the transceiver 1130 is configured to implement the transceiving-related operations performed by the network device in the above method embodiments.
  • the present application also provides a communication apparatus 1200, where the communication apparatus 1200 may be a terminal device, a processor of the terminal device, or a chip.
  • the communication apparatus 1200 may be configured to perform the operations performed by the terminal device in the foregoing method embodiments.
  • FIG. 12 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device includes a processor, a memory, and a transceiver.
  • the memory can store computer program codes
  • the transceiver includes a transmitter 1231, a receiver 1232, a radio frequency circuit (not shown in the figure), an antenna 1233, and an input and output device (not shown in the figure).
  • the processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, process data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices For example, touch screens, display screens, keyboards, etc. are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • 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, and the processor converts the baseband signal into data and processes the data.
  • a memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function may be regarded as the transceiver module of the terminal device, and the processor with the processing function may be regarded as the processing module of the terminal device.
  • the terminal device includes a processor 1210 , a memory 1220 and a transceiver 1230 .
  • the processor 1210 may also be called a processing unit, a processing board, a processing module, a processing device, etc.
  • the transceiver 1230 may also be called a transceiver unit, a transceiver, a transceiver device, and the like.
  • the device in the transceiver 1230 for realizing the receiving function may be regarded as a receiving module
  • the device in the transceiver 1230 for realizing the sending function may be regarded as a sending module
  • the transceiver 1230 includes a receiver and a transmitter.
  • a transceiver may sometimes be called a transceiver, a transceiver module, or a transceiver circuit, etc.
  • a receiver may sometimes be called a receiver, a receiving module, or a receiving circuit, etc.
  • the transmitter can sometimes be called a transmitter, a transmitting module, or a transmitting circuit, etc.
  • the processor 1210 is configured to execute the processing actions on the terminal device side of the embodiment shown in FIG. 4
  • the transceiver 1230 is configured to execute the transceiving actions on the terminal device side in FIG. 4 .
  • the processor 1210 is configured to execute the processing operation of 401 in the embodiment shown in FIG. 4 .
  • the transceiver 1230 is used to execute the process of 402 in the embodiment shown in FIG. 4 .
  • the transceiver 1230 is also used to execute 401c and 401d in the embodiment shown in FIG. 4 .
  • the processor 1210 is also configured to execute the processing operations of 401a and 401b in the embodiment shown in FIG. 4 .
  • the processor 1210 is configured to execute the processing actions on the terminal device side of the embodiment shown in FIG. 5
  • the transceiver 1230 is configured to execute the transceiving actions on the terminal device side in FIG. 5 .
  • the processor 1210 is configured to execute the processing operations of 501 and 502 in the embodiment shown in FIG. 5
  • the transceiver 1230 is configured to execute the process of 501a in the embodiment shown in FIG. 5
  • the processor 1210 is also configured to execute the processing operation of 503 or 504 in the embodiment shown in FIG. 5 .
  • the processor 1210 is configured to execute the processing actions on the terminal device side of the embodiment shown in FIG. 6
  • the transceiver 1230 is configured to execute the transceiving actions on the terminal device side in FIG. 6 .
  • the processor 1210 is configured to execute the processing operation of 601 in the embodiment shown in FIG. 6
  • the transceiver 1230 is configured to execute the process of 601a in the embodiment shown in FIG. 6
  • the processor 1210 is also configured to execute the processing operation of 602 in the embodiment shown in FIG. 6 .
  • FIG. 12 is only an example rather than a limitation, and the foregoing terminal device including a transceiver module and a processing module may not depend on the structure shown in FIG. 7 or FIG. 9 .
  • the chip When the communication device 1200 is a chip, the chip includes a processor, a memory and a transceiver.
  • the transceiver may be an input-output circuit or a communication interface;
  • the processor may be a processing module or a microprocessor or an integrated circuit integrated on the chip.
  • the present application also provides a communication device 1300, and the communication device 1300 may be a network device or a chip.
  • the communication apparatus 1300 may be used to perform the operations performed by the network device in the above method embodiments shown in FIG. 4 , FIG. 5 and FIG. 6 .
  • Fig. 13 shows a simplified structure diagram of a base station.
  • the base station includes 1310 part, 1320 part and 1330 part.
  • Part 1310 is mainly used for baseband processing, controlling the base station, etc.; part 1310 is usually the control center of the base station, which can usually be called a processor, and is used to control the base station to perform processing operations on the network device side in the above method embodiments.
  • Section 1320 is primarily used to store computer program code and data.
  • Part 1330 is mainly used for transmitting and receiving radio frequency signals and conversion between radio frequency signals and baseband signals; part 1330 can generally be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver.
  • the transceiver module in part 1330 may also be referred to as a transceiver or transceiver, etc., and includes an antenna 1333 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing.
  • the device used to implement the receiving function in part 1330 can be regarded as a receiver, and the device used to realize the sending function can be regarded as a transmitter, that is, part 1330 includes a receiver 1332 and a transmitter 1331 .
  • the receiver may also be called a receiving module, a receiver, or a receiving circuit, etc.
  • the transmitter may be called a transmitting module, a transmitter, or a transmitting circuit, etc.
  • Part 1310 and part 1320 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to realize baseband processing functions and control the base station. If there are multiple single boards, each single board can be interconnected to enhance the processing capability. As an optional implementation, it is also possible that multiple single boards share one or more processors, or that multiple single boards share one or more memories, or that multiple single boards share one or more processors at the same time. device.
  • the transceiving module in part 1330 is configured to perform transceiving-related processes performed by the terminal device in the embodiments shown in FIG. 4 to FIG. 6 .
  • the processor in part 1310 is configured to execute processing-related procedures executed by the terminal device in the embodiments shown in FIG. 4 to FIG. 6 .
  • FIG. 13 is only an example rather than a limitation, and the foregoing network device including a processor, a memory, and a transceiver may not depend on the structure shown in FIG. 8 or FIG. 10 .
  • the chip When the communication device 1300 is a chip, the chip includes a transceiver, a memory and a processor.
  • the transceiver may be an input-output circuit or a communication interface;
  • the processor may be a processor integrated on the chip, or a microprocessor, or an integrated circuit.
  • the sending operation of the network device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the network device in the above method embodiment can be understood as the input of the chip.
  • the embodiment of the present application also provides a computer-readable storage medium, on which computer instructions for implementing the method executed by the terminal device or the network device in the foregoing method embodiments are stored.
  • the embodiment of the present application also provides a computer program product including instructions, and when the instructions are executed by a computer, the computer implements the method executed by the terminal device or the network device in the above method embodiments.
  • An embodiment of the present application further provides a communication system, where the communication system includes the terminal device and the network device in the foregoing embodiments.
  • the embodiment of the present application also provides a chip device, including a processor, configured to call a computer program or a computer instruction stored in a memory, so that the processor executes the method of the above-mentioned embodiments shown in FIG. 4 to FIG. 6 .
  • the input of the chip device corresponds to the receiving operation in the above-mentioned embodiments shown in Figures 4 to 6
  • the output of the chip device corresponds to the sending operation in the above-mentioned embodiments shown in Figures 4 to 6 operate.
  • the processor is coupled to the memory through an interface.
  • the chip device further includes a memory in which computer programs or computer instructions are stored.
  • the processor mentioned in any of the above can be a general-purpose central processing unit, a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more for controlling the above-mentioned Fig. 4 to An integrated circuit for program execution of the method of the embodiment shown in FIG. 6 .
  • the memory mentioned in any of the above can be read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc.
  • a terminal device or a network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer may include hardware such as a central processing unit (central processing unit, CPU), a memory management module (memory management unit, MMU), and memory (also called main memory).
  • the operating system of the operating system layer can be any one or more computer operating systems that realize business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer may include applications such as browsers, address books, word processing software, and instant messaging software.
  • the disclosed system, device and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.
  • the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional module in each embodiment of the present application may be integrated into one processing module, each module may exist separately physically, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the integrated modules are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application that contributes substantially or all or part of the technical solution may be embodied in the form of a software product
  • the computer software product is stored in a storage medium, including several instructions for Make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the processes of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes various media that can store program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Est divulgué dans des modes de réalisation de la présente demande un procédé de récupération de faisceau, utilisé pour la récupération de faisceau d'une cellule voisine d'un dispositif terminal et l'amélioration de la performance de communication. Le procédé des modes de réalisation de la présente demande consiste en ce que : un dispositif terminal détermine, à partir d'au moins une ressource de canal physique à accès aléatoire (PRACH), une ressource de PRACH cible associée à une ressource de signal de référence cible, la ressource de signal de référence cible étant une ressource de signal de référence correspondant à un faisceau candidat cible d'une cellule voisine du dispositif terminal ; le dispositif terminal déclenche une récupération de faisceau de la cellule voisine sur la base de la ressource de PRACH cible.
PCT/CN2022/130247 2021-11-17 2022-11-07 Procédé de récupération de faisceau, procédé de détection de défaillance de faisceau et appareil associé Ceased WO2023088114A1 (fr)

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