WO2022233001A1 - Procédé de récupération après défaillance de faisceau (bfr), procédé et appareil de transmission de csi-rs apériodique - Google Patents

Procédé de récupération après défaillance de faisceau (bfr), procédé et appareil de transmission de csi-rs apériodique Download PDF

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Publication number
WO2022233001A1
WO2022233001A1 PCT/CN2021/091957 CN2021091957W WO2022233001A1 WO 2022233001 A1 WO2022233001 A1 WO 2022233001A1 CN 2021091957 W CN2021091957 W CN 2021091957W WO 2022233001 A1 WO2022233001 A1 WO 2022233001A1
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Prior art keywords
aperiodic csi
csi
counter
beam failure
current
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PCT/CN2021/091957
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English (en)
Chinese (zh)
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罗星熠
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/091957 priority Critical patent/WO2022233001A1/fr
Priority to CN202180001173.3A priority patent/CN115589792A/zh
Publication of WO2022233001A1 publication Critical patent/WO2022233001A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a beam failure recovery BFR method, a method and apparatus for sending aperiodic CSI-RS.
  • the beam failure recovery (Beam Failure Recovery, BFR) process in the related art is divided into beam failure detection, candidate beam selection, and recovery processes.
  • the terminal device detects the current beam (beam) of the terminal device according to the channel state information reference signals (Channel-state-information reference signals, CSI-RS) periodically sent by the network device.
  • the channel state information reference signals Channel-state-information reference signals, CSI-RS
  • LBT Listen before Talk
  • the reference signal can be sent only after confirming that the channel is idle, so the periodic reference signal may not be sent, making it difficult to carry out the current beam in time. It is difficult to detect the failure of the beam in time.
  • Embodiments of the present application provide a beam failure recovery BFR method, a method and apparatus for sending aperiodic CSI-RS, which can be applied to a communication system.
  • a terminal device By receiving aperiodic CSI-RS, a terminal device can perform beam failure detection in time.
  • an embodiment of the present application provides a beam failure recovery BFR method, which is applied to a terminal device, and the method includes:
  • a recovery process is initiated according to the selected target candidate beam.
  • the terminal device when the network device fails to transmit the first periodic CSI-RS, the terminal device can receive the aperiodic CSI-RS within the time interval of two first periodic CSI-RS for measurement, so as to be able to timely measure the CSI-RS. Aperiodic CSI-RS is received, so that beam failure detection can be performed in time.
  • the condition for beam failure is that the number of beam failure instance BFIs is greater than a first number threshold, and the number of non-BFIs between adjacent BFIs is less than or equal to a second number threshold;
  • the BFI indicates that the measurement result of the CSI-RS is less than the first measurement threshold corresponding to the CSI-RS;
  • the non-BFI indicates that the measurement result of the CSI-RS is greater than or equal to the second measurement threshold of the corresponding CSI-RS.
  • determining whether a beam failure occurs according to the measurement result of the aperiodic CSI-RS includes:
  • the historical beam failure instance count value BFI_COUNTER and the historical non-beam failure instance count value nonBFI_COUNTER are updated to obtain the current BFI_COUNTER and the current nonBFI_COUNTER, include:
  • the historical BFI_COUNTER is cleared to obtain the current nonBFI_COUNTER.
  • the terminal device when the network device fails to transmit the first periodic CSI-RS, the terminal device can receive aperiodic CSI-RS within a time interval of two first periodic CSI-RS for measurement, and measure according to the non-periodic CSI-RS.
  • Periodic CSI-RS measurement results update the historical beam failure instance count value BFI_COUNTER and the historical non-beam failure instance count value nonBFI_COUNTER to obtain the current BFI_COUNTER and current nonBFI_COUNTER, and then determine whether there is a beam failure, avoid using BFI_COUNTER and time thresholds to In the method of determining the beam failure, there is a situation that the beam failure detection error is caused when a certain first period CSI-RS is not successfully sent.
  • the manner of selecting the target candidate beam includes:
  • the target candidate beam is selected according to the measurement result of aperiodic CSI-RS for candidate beam selection.
  • the method before receiving the aperiodic CSI-RS for beam failure detection, the method further includes:
  • radio resource control RRC information of the network device wherein the RRC information configures aperiodic CSI-RS for beam failure detection and aperiodic CSI-RS for candidate beam selection;
  • the RRC information configures aperiodic CSI-RS for candidate beam selection
  • the first aperiodic CSI-RS table stores multiple aperiodic CSI-RS for beam failure detection -Rs information.
  • an embodiment of the present application provides a method for sending aperiodic CSI-RS, which is applied to a network device, and the method includes:
  • Aperiodic CSI-RS for beam failure detection is sent to the terminal device.
  • the network device can send aperiodic CSI-RS within a time interval of two first-period CSI-RSs without successfully sending the first-period CSI-RS, so that the terminal device can receive the non-periodic CSI-RS in time.
  • Periodic CSI-RS is measured and beam failure detection can be performed in time.
  • the method further includes: sending a second DCI to the terminal device in response to the failure to send the second periodic CSI-RS and the success of the current LBT due to historical LBT failures;
  • Aperiodic CSI-RS for candidate beam selection is sent to the terminal device.
  • the method before sending the aperiodic CSI-RS for beam failure detection to the terminal device, the method further includes:
  • radio resource control RRC information to the terminal equipment, wherein the RRC information configures aperiodic CSI-RS for beam failure detection and aperiodic CSI-RS for candidate beam selection;
  • an embodiment of the present application provides a communication device, the communication device has some or all of the functions of the terminal device in the method described in the first aspect above, for example, the function of the communication device may have some or all of the functions in the present application
  • the functions in the embodiments may also have the functions of independently implementing any one of the embodiments in this application.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver unit and a processing unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver unit is used to support communication between the communication device and other devices.
  • the communication device may further include a storage unit for coupling with the transceiver unit and the processing unit, which stores computer programs and data necessary for the communication device.
  • the processing unit may be a processor
  • the transceiving unit may be a transceiver or a communication interface
  • the storage unit may be a memory
  • an embodiment of the present application provides another communication device, the communication device having some or all of the functions of the network device in the method example described in the second aspect above, for example, the function of the communication device may have some of the functions in the present application Or the functions in all the embodiments may also have the functions of independently implementing any one of the embodiments in this application.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver unit and a processing unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver unit is used to support communication between the communication device and other devices.
  • the communication device may further include a storage unit for coupling with the transceiver unit and the processing unit, which stores computer programs and data necessary for the communication device.
  • an embodiment of the present application provides a communication device, where the communication device includes a processor, and when the processor calls a computer program in a memory, the method described in the first aspect is executed.
  • an embodiment of the present application provides a communication device, the communication device includes a processor, and when the processor invokes a computer program in a memory, the method described in the second aspect above is executed.
  • an embodiment of the present application provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device is caused to execute the above-mentioned The method described in the first aspect.
  • an embodiment of the present application provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device is made to execute the above-mentioned The method described in the second aspect.
  • an embodiment of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions to enable the The apparatus performs the method described in the first aspect above.
  • an embodiment of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is configured to receive a code instruction and transmit it to the processor, and the processor is configured to run the code instruction to enable the The apparatus performs the method described in the second aspect above.
  • an embodiment of the present application provides a communication system, where the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device of the sixth aspect, or the system includes the communication device of the seventh aspect and the communication device of the eighth aspect, or the system includes the communication device of the ninth aspect and the tenth aspect. the communication device described.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions, and when the instructions are executed, the method described in the first aspect above is implemented.
  • an embodiment of the present invention provides a readable storage medium for storing instructions, and when the instructions are executed, the method described in the second aspect above is implemented.
  • the present application further provides a computer program product comprising a computer program, which, when run on a computer, causes the computer to execute the method described in the first aspect.
  • the present application further provides a computer program product comprising a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect above.
  • the present application provides a chip system
  • the chip system includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method and at least one of information.
  • the chip system further includes a memory for storing necessary computer programs and data of the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a chip system
  • the chip system includes at least one processor and an interface for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing data involved in the above method and at least one of information.
  • the chip system further includes a memory for storing necessary computer programs and data of the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a computer program that, when executed on a computer, causes the computer to execute the method described in the first aspect.
  • the present application provides a computer program that, when executed on a computer, causes the computer to execute the method described in the second aspect above.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a beam failure recovery BFR method provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for sending aperiodic CSI-RS provided by an embodiment of the present application
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and shape of the devices shown in FIG. 1 are only for examples and do not constitute limitations to the embodiments of the present application. In practical applications, two or more devices may be included.
  • network equipment two or more terminal equipment.
  • the communication system shown in FIG. 1 includes a network device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the network device 101 in this embodiment of the present application is an entity on the network side for transmitting or receiving signals.
  • the network device 101 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or a base station in other future mobile communication systems Or an access node in a wireless fidelity (WiFi) system, etc.
  • eNB evolved NodeB
  • TRP transmission reception point
  • gNB next generation base station
  • WiFi wireless fidelity
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
  • the network device provided in this embodiment of the present application may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), where the CU may also be called a control unit (control unit), and a CU-DU is adopted.
  • the structure of the network equipment such as the protocol layer of the base station, can be split, and the functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in this embodiment of the present application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • a terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (mobile station, MS), a mobile terminal device (mobile terminal, MT), and the like.
  • the terminal device can be a car with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.
  • the terminal device In the communication between the terminal device 102 and the network device 101, in order to ensure the throughput of the terminal device, the terminal device will perform a beam failure recovery (Beam Failure Recovery, BFR) process in real time.
  • BFR Beam Failure Recovery
  • the BFR process is divided into beam failure detection, candidate beam selection and recovery process.
  • the terminal device 102 detects the current physical downlink control channel (Physical Downlink Control Channel) of the terminal device according to the channel-state-information reference signals (CSI-RS) periodically sent by the network device 101 , PDCCH) beam.
  • CSI-RS channel-state-information reference signals
  • the Listen before Talk (LBT) mechanism needs to be used for channel detection, and the reference signal can be sent only after confirming that the channel is idle, so the periodic reference signal may not be sent, making it difficult to carry out the current beam in time. It is difficult to detect the failure of the beam in time.
  • LBT Listen before Talk
  • FIG. 2 is a schematic flowchart of a beam failure recovery BFR method provided by an embodiment of the present application. The method is applied to terminal equipment. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step S201 In response to receiving the first downlink control message DCI of the network device, receive aperiodic CSI-RS for beam failure detection, wherein the first DCI is used to trigger the terminal device to receive the aperiodic CSI-RS.
  • the first downlink control message (Downlink Control Information, DCI) is the failure of the network device to send the CSI-RS in the first cycle due to the historical Listen before Talk (LBT) failure and the current The message sent if the LBT is successful.
  • the network device uses the LBT mechanism to perform channel detection in real time, and only sends the first periodic CSI-RS to the terminal device when it confirms that the channel is idle and reaches the time period for sending the first periodic CSI-RS; The LBT fails and the transmission time period of the first periodic CSI-RS is reached, so that the first periodic CSI-RS cannot be sent.
  • the network device may send the first DCI to the terminal device to trigger the terminal device to receive the aperiodic CSI-RS.
  • both the first periodic CSI-RS and the aperiodic CSI-RS are used for beam failure detection of the terminal equipment.
  • the aperiodic CSI-RS used for beam failure detection may be, for example, the aperiodic CSI-RS that is quasi-co-located with the beam of the current PDCCH of the terminal device.
  • the terminal device may, according to the pre-configuration, determine the downlink resource for the network device to send the aperiodic CSI-RS, and receive the aperiodic CSI-RS on the downlink resource.
  • Step S202 In response to determining that a beam failure occurs according to the measurement result of the aperiodic CSI-RS, initiate a recovery process according to the selected target candidate beam.
  • the condition for beam failures may be that the number of beam failure instances (Beam Failure Instance, BFI) is greater than the first number threshold (beamFailureInstanceMaxCount), and the time interval between adjacent BFIs is less than the time Threshold (beamFailureDetectionTimer).
  • BFI means that the measurement result of the CSI-RS is less than the first measurement threshold of the corresponding CSI-RS
  • non-BFI means that the measurement result of the CSI-RS is greater than or equal to the second measurement threshold of the corresponding CSI-RS.
  • the condition for beam failure may be that the number of beam failure instance BFIs is greater than the first number threshold, and the number of non-BFIs between adjacent BFIs is less than or equal to the second number threshold.
  • BFI indicates that the CSI-RS measurement result is smaller than the first measurement threshold corresponding to the CSI-RS; non-BFI indicates that the CSI-RS measurement result is greater than or equal to the second measurement threshold corresponding to the CSI-RS.
  • the terminal device may determine whether a beam failure occurs according to the measurement result of the aperiodic CSI-RS, the measurement results of multiple historical CSI-RSs, and the condition for the occurrence of the beam failure.
  • the multiple historical CSI-RSs are CSI-RSs received by the terminal device before receiving the aperiodic CSI-RSs.
  • the CSI-RSs in the multiple historical CSI-RSs may all be periodic CSI-RSs; some may be periodic CSI-RSs, and some may be non-periodic CSI-RSs, depending on whether there is an LBT failure before and the first periodic CSI-RS is reached The situation of the sending time period is determined.
  • the measurement thresholds may be the same or different.
  • the first measurement threshold and the second measurement threshold may be the same or different.
  • the measurement threshold can be, for example, the reference signal received power (Reference Signal Receiving Power, RSRP) threshold of the L1 layer (physical layer), and/or the signal to Interference plus Noise Ratio (SINR, SINR) of the L1 layer ) threshold.
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • the way for the terminal device to select the target candidate beam may include: receiving periodic CSI-RS for candidate beam selection; Based on the measurement results of periodic CSI-RS for beam selection, target candidate beams are selected.
  • the manner in which the terminal device selects the target candidate beam may include: in response to receiving the second DCI of the network device, receiving aperiodic CSI-RS for candidate beam selection; The measurement result of the aperiodic CSI-RS of the beam selection, the target candidate beam is selected.
  • the second DCI is used to trigger the terminal device to receive aperiodic CSI-RS for candidate beam selection.
  • the second DCI is information sent by the network device in the case that the second periodic CSI-RS is not successfully sent due to historical LBT failures and the current LBT is successful.
  • the second periodic CSI-RS and the aperiodic CSI-RS used for candidate beam selection are both used for candidate beam selection of the terminal device.
  • the aperiodic CSI-RS used for candidate beam selection may be, for example, aperiodic CSI-RS quasi-co-located with the candidate beam.
  • the terminal device may, according to the pre-configuration, determine the downlink resource for the network device to send the aperiodic CSI-RS, and receive the aperiodic CSI-RS for candidate beam selection on the downlink resource. RS.
  • the terminal device when the network device fails to transmit the first periodic CSI-RS, the terminal device can receive aperiodic CSI-RS within the time interval of two first periodic CSI-RS for measurement, so that it can measure the aperiodic CSI-RS. Use aperiodic CSI-RS for beam failure detection in time.
  • FIG. 3 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application. The method is applied to terminal equipment. As shown in Figure 3, the method may include but is not limited to the following steps:
  • Step S301 Receive radio resource control RRC information of the network device, wherein the RRC information configures aperiodic CSI-RS for beam failure detection and aperiodic CSI-RS for candidate beam selection.
  • the aperiodic CSI-RS (q0') configured by the network device for beam failure detection is determined by the network device according to the configured first aperiodic CSI-RS table (candidateDetectionAPRSList), wherein the first aperiodic CSI-RS table (candidateDetectionAPRSList)
  • the periodic CSI-RS table stores information of multiple aperiodic CSI-RSs used for beam failure detection.
  • the network device may select the information of the aperiodic CSI-RS quasi-co-located with the beam of the current PDCCH of the terminal device from the first aperiodic CSI-RS table, and then determine the aperiodic CSI-RS for beam failure detection.
  • the first aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured N first aperiodic trigger states (aperiodic trigger states).
  • each first aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state (Transmission indication configuration state corresponding to a different beam) Configuration Indication state), used to determine the quasi-co-location relationship between the beam and aperiodic CSI-RS.
  • N represents the total number of beams of the network device.
  • Each CSI-RS set includes one aperiodic CSI-RS.
  • the reportQuantity in the CSI-ReportConfig corresponding to the first aperiodic trigger state can be set to none, so as to avoid the network equipment from waiting for the feedback of the terminal equipment for the aperiodic CSI-RS used for beam failure detection.
  • the aperiodic CSI-RS (q1') configured by the network device for candidate beam selection is determined by the network device according to the configured second aperiodic CSI-RS table (candidateBeamAPRSList), wherein the second aperiodic CSI-RS list (candidateBeamAPRSList)
  • the periodic CSI-RS table stores information on a plurality of aperiodic CSI-RSs used for candidate beam selection.
  • the aperiodic CSI-RS in the second aperiodic CSI-RS table is the aperiodic CSI-RS used for candidate beam selection.
  • the second aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured M second aperiodic trigger states (aperiodic trigger states).
  • each second aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state corresponding to a different candidate beam ( Transmission Configuration Indication state), used to determine the quasi-co-location relationship between candidate beams and aperiodic CSI-RS.
  • M is 1, the CSI-RS set includes at least one aperiodic CSI-RS, and the number of aperiodic CSI-RS in the CSI-RS set is consistent with the number of candidate beams.
  • the reportQuantity in the CSI-ReportConfig corresponding to the second aperiodic trigger state can be set to none, so as to avoid the network device from waiting for the feedback of the terminal device for the aperiodic CSI-RS used for candidate beam selection.
  • Step S302 In response to receiving the first downlink control message DCI of the network device, receive an aperiodic CSI-RS for beam failure detection, where the first DCI is used to trigger the terminal device to receive the aperiodic CSI-RS.
  • Step S303 Determine whether a beam failure occurs according to the measurement result of the aperiodic CSI-RS.
  • Step S304 In response to receiving the second DCI of the network device, receive aperiodic CSI-RS for candidate beam selection.
  • the second DCI is used to trigger the terminal equipment to receive aperiodic CSI-RS for candidate beam selection.
  • the second DCI is information sent by the network device in the case that the second periodic CSI-RS is not successfully sent due to historical LBT failures and the current LBT is successful.
  • the second periodic CSI-RS and the aperiodic CSI-RS used for candidate beam selection are both used for candidate beam selection of the terminal device.
  • the aperiodic CSI-RS used for candidate beam selection may be, for example, aperiodic CSI-RS quasi-co-located with the candidate beam.
  • the terminal device may determine the downlink resource for the network device to send the aperiodic CSI-RS according to the pre-configuration, and receive the aperiodic CSI-RS used for candidate beam selection on the downlink resource .
  • Step S305 Select the target candidate beam according to the measurement result of the aperiodic CSI-RS used for candidate beam selection.
  • steps S304 and S305 may be performed simultaneously with the execution of steps S302 and S303. That is, the terminal device can perform beam failure detection and candidate beam selection at the same time.
  • Step S306 In response to determining that a beam failure occurs according to the measurement result of the aperiodic CSI-RS, initiate a recovery process according to the selected target candidate beam.
  • step S302 step S303 and step S306
  • steps S201 and S202 in the embodiment shown in FIG. Describe in detail.
  • the terminal device can send the first periodic CSI when the network device fails to successfully send the CSI-RS.
  • the aperiodic CSI-RS for beam failure detection is received within the time interval of two first periodic CSI-RSs for measurement; the terminal device can also be used when the network device fails to send the second periodic CSI-RS.
  • the aperiodic CSI-RS used for candidate beam selection is received within the time interval of two second periodic CSI-RS for measurement; thus, the aperiodic CSI-RS used for beam failure detection can be used for beam failure in time. Detection, and timely use of aperiodic CSI-RS for candidate beam selection for candidate beam selection.
  • FIG. 4 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application. The method is applied to terminal equipment. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step S401 Receive RRC information of the network device, wherein the RRC information configures aperiodic CSI-RS for candidate beam selection.
  • the aperiodic CSI-RS (q1') configured by the network device for candidate beam selection is determined by the network device according to the configured second aperiodic CSI-RS table (candidateBeamAPRSList), wherein the second aperiodic CSI-RS list (candidateBeamAPRSList)
  • the periodic CSI-RS table stores information on a plurality of aperiodic CSI-RSs used for candidate beam selection.
  • the aperiodic CSI-RS in the second aperiodic CSI-RS table is the aperiodic CSI-RS used for candidate beam selection.
  • the second aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured M second aperiodic trigger states (aperiodic trigger states).
  • each second aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state corresponding to a different candidate beam ( Transmission Configuration Indication state), used to determine the quasi-co-location relationship between candidate beams and aperiodic CSI-RS.
  • M is 1, the CSI-RS set includes at least one aperiodic CSI-RS, and the number of aperiodic CSI-RS in the CSI-RS set is consistent with the number of candidate beams.
  • the reportQuantity in the CSI-ReportConfig corresponding to the second aperiodic trigger state can be set to none, so as to avoid the network device from waiting for the feedback of the terminal device for the aperiodic CSI-RS used for candidate beam selection.
  • Step S402 Determine the aperiodic CSI-RS used for beam failure detection according to the configured first aperiodic CSI-RS table; wherein, the first aperiodic CSI-RS table stores a plurality of aperiodic CSI-RS used for beam failure detection CSI-RS information.
  • the terminal device can select the information of the aperiodic CSI-RS quasi-co-located with the beam of the current PDCCH of the terminal device from the first aperiodic CSI-RS table (candidateDetectionAPRSList), and then determine the non-periodic CSI-RS for beam failure detection.
  • the first aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured N first aperiodic trigger states (aperiodic trigger states).
  • each first aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state (Transmission indication configuration state corresponding to a different beam) Configuration Indication state), used to determine the quasi-co-location relationship between the beam and aperiodic CSI-RS.
  • N represents the total number of beams of the network device.
  • Each CSI-RS set includes one aperiodic CSI-RS.
  • the reportQuantity in the CSI-ReportConfig corresponding to the first aperiodic trigger state can be set to none, so as to avoid the network equipment from waiting for the feedback of the terminal equipment for the aperiodic CSI-RS used for beam failure detection.
  • the first aperiodic CSI-RS table may be sent by the network device to the terminal device through RRC information.
  • the first aperiodic CSI-RS table and the aperiodic CSI-RS information used for candidate beam selection can be carried in the same RRC information and sent by the network device to the terminal device; or, the first aperiodic CSI-RS table and The aperiodic CSI-RS information used for candidate beam selection may be carried in different RRC information and sent by the network device to the terminal device.
  • the network device may also send the second aperiodic CSI-RS table to the terminal device through RRC information, and the second aperiodic CSI-RS table may be sent to the terminal device through separate RRC information, or it may be combined with the first aperiodic CSI-RS table.
  • the CSI-RS table and the aperiodic CSI-RS information used for candidate beam selection are carried in the same RRC information and sent to the terminal equipment. There is no specific limitation here, and one or more RRC information can be selected according to actual needs.
  • Step S403 In response to receiving the first downlink control message DCI of the network device, receive an aperiodic CSI-RS for beam failure detection, where the first DCI is used to trigger the terminal device to receive the aperiodic CSI-RS.
  • Step S404 Determine whether a beam failure occurs according to the measurement result of the aperiodic CSI-RS.
  • Step S405 In response to receiving the second DCI of the network device, receive aperiodic CSI-RS for candidate beam selection.
  • the second DCI is used to trigger the terminal equipment to receive aperiodic CSI-RS for candidate beam selection.
  • the second DCI is information sent by the network device in the case that the second periodic CSI-RS is not successfully sent due to historical LBT failures and the current LBT is successful.
  • the second periodic CSI-RS and the aperiodic CSI-RS used for candidate beam selection are both used for candidate beam selection of the terminal device.
  • the aperiodic CSI-RS used for candidate beam selection may be, for example, aperiodic CSI-RS quasi-co-located with the candidate beam.
  • the terminal device may determine the downlink resource for the network device to send the aperiodic CSI-RS according to the pre-configuration, and receive the aperiodic CSI-RS used for candidate beam selection on the downlink resource .
  • Step S406 Select the target candidate beam according to the measurement result of the aperiodic CSI-RS used for candidate beam selection.
  • steps S405 and S406 may be performed simultaneously with the execution of steps S403 and S404. That is, the terminal device can perform beam failure detection and candidate beam selection at the same time.
  • Step S407 In response to determining that a beam failure occurs according to the measurement result of the aperiodic CSI-RS, initiate a recovery process according to the selected target candidate beam.
  • step S403, step S404, and step S407 reference may be made to any one or more embodiments in this application, for example, reference may be made to steps S201 and S202 in the embodiment shown in FIG. Describe in detail.
  • the terminal device may receive aperiodic CSI-RS for beam failure detection within the time interval of two first periodic CSI-RSs for measurement when the network device fails to send the first periodic CSI-RS; the terminal device It is also possible to receive aperiodic CSI-RS for candidate beam selection within the time interval of two second periodic CSI-RSs for measurement when the network device fails to transmit the second periodic CSI-RS; thus, it can be utilized in time.
  • the aperiodic CSI-RS for beam failure detection is used for beam failure detection
  • the aperiodic CSI-RS for candidate beam selection is used for candidate beam selection in time.
  • FIG. 5 is a schematic flowchart of another beam failure recovery BFR method provided by an embodiment of the present application. The method is applied to terminal equipment. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step S501 In response to receiving the first downlink control message DCI of the network device, receive an aperiodic CSI-RS for beam failure detection, where the first DCI is used to trigger the terminal device to receive the aperiodic CSI-RS.
  • Step S502 According to the measurement result of the aperiodic CSI-RS, update the historical beam failure instance count value BFI_COUNTER and the historical non-beam failure instance count value nonBFI_COUNTER to obtain the current BFI_COUNTER and the current nonBFI_COUNTER.
  • the historical BFI_COUNTER and the historical nonBFI_COUNTER are determined according to the historical CSI-RS received before the aperiodic CSI-RS.
  • the historical BFI_COUNTER and historical nonBFI_COUNTER can be determined as follows: after the last reset of BFI_COUNTER and nonBFI_COUNTER to zero; according to time sequence, for each historical CSI-RS, perform an update process on BFI_COUNTER and nonBFI_COUNTER to obtain historical BFI_COUNTER and historical BFI_COUNTER nonBFI_COUNTER.
  • the updating process performed on BFI_COUNTER and nonBFI_COUNTER may include: in response to the measurement result of the historical CSI-RS being less than the first measurement threshold of the historical CSI-RS, adding 1 to the BFI_COUNTER, Perform zero clearing processing on nonBFI_COUNTER to obtain updated BFI_COUNTER and nonBFI_COUNTER; or, in response to the measurement result of the historical CSI-RS being greater than or equal to the second measurement threshold of the historical CSI-RS, perform a processing of adding 1 to nonBFI_COUNTER, Obtain the updated nonBFI_COUNTER; in response to the nonBFI_COUNTER being greater than the second number threshold, clear the BFI_COUNTER to obtain the updated nonBFI_COUNTER.
  • the terminal device updates the historical beam failure instance count value BFI_COUNTER and the historical non-beam failure instance count value nonBFI_COUNTER according to the measurement result of the aperiodic CSI-RS, and the process of obtaining the current BFI_COUNTER and the current nonBFI_COUNTER may include: If the measurement result of the periodic CSI-RS is smaller than the first measurement threshold of the aperiodic CSI-RS, the historical BFI_COUNTER is incremented by 1, and the historical nonBFI_COUNTER is cleared to obtain the current BFI_COUNTER and the current nonBFI_COUNTER; or, in response to the aperiodic CSI- The measurement result of the RS is greater than or equal to the second measurement threshold of the aperiodic CSI-RS, and the historical nonBFI_COUNTER is incremented by 1 to obtain the current nonBFI_COUNTER; in response to the current nonBFI_COUNTER being greater than the second number threshold, the historical BFI
  • Step S503 In response to the current BFI_COUNTER being greater than the first number threshold, it is determined that a beam failure occurs.
  • Step S504 In response to the current BFI_COUNTER being less than or equal to the first number threshold, it is determined that no beam failure occurs.
  • Step S505 In response to determining that a beam failure occurs according to the measurement result of the aperiodic CSI-RS, initiate a recovery process according to the selected target candidate beam.
  • step S501 and step S505 reference may be made to any one or more embodiments in this application.
  • step S201 and step S202 in the embodiment shown in FIG. 2 , which will not be described in detail here. describe.
  • the above-mentioned method of judging whether a beam failure occurs in the present application is compared with the method for judging whether a beam failure occurs as specified in the existing protocol.
  • the method for judging the occurrence of beam failure is to determine that the time interval between two adjacent BFIs is greater than the time threshold, so it will be misjudged as not meeting the conditions for beam failure; and the method for judging whether beam failure occurs in this application is based on aperiodicity.
  • the measurement result of the CSI-RS is determined. If the measurement result of the aperiodic CSI-RS is less than the first measurement threshold of the aperiodic CSI-RS, the opposite result may be obtained, that is, the condition for beam failure occurs. Therefore, the above-mentioned method for judging whether a beam failure occurs in the present application has higher judgment accuracy than the method for judging whether a beam failure occurs as specified in the existing protocol, and can detect the beam failure situation in a more timely manner.
  • the terminal device can receive aperiodic CSI-RS within a time interval of two first periodic CSI-RSs for measurement when the network device fails to transmit the first periodic CSI-RS, and measure according to the For the measurement results of aperiodic CSI-RS, update the historical beam failure instance count value BFI_COUNTER and the historical non-beam failure instance count value nonBFI_COUNTER to obtain the current BFI_COUNTER and the current nonBFI_COUNTER, and then determine whether there is a beam failure, avoiding the use of BFI_COUNTER and time thresholds In the method for determining beam failure, when there is a situation in which beam failure detection error occurs when a certain first period of CSI-RS is not successfully sent.
  • FIG. 6 is a schematic flowchart of a method for sending aperiodic CSI-RS provided by an embodiment of the present application. The method is applied to network equipment. As shown in Figure 6, the method may include but is not limited to the following steps:
  • Step S601 In response to the failure to send the first periodic CSI-RS caused by the failure of the historical LBT and the success of the current LBT, send a first downlink control message DCI to the terminal device, wherein the first DCI is used to trigger the terminal device to receive Periodic CSI-RS.
  • the network device uses the Listen before Talk (LBT) mechanism to perform channel detection in real time, and only when it confirms that the channel is idle and reaches the transmission time period of the first cycle of CSI-RS, will the terminal be sent to the terminal.
  • the device sends the first periodic CSI-RS; if the LBT fails and the time period for sending the first periodic CSI-RS is reached, the first periodic CSI-RS cannot be sent. In this case, when the next LBT succeeds, the network device may send the first DCI to the terminal device to trigger the terminal device to receive the aperiodic CSI-RS.
  • LBT Listen before Talk
  • both the first periodic CSI-RS and the aperiodic CSI-RS are used for beam failure detection of the terminal equipment.
  • the aperiodic CSI-RS used for beam failure detection may be, for example, the aperiodic CSI-RS that is quasi-co-located with the beam of the current PDCCH of the terminal device.
  • Step S602 Send the aperiodic CSI-RS for beam failure detection to the terminal device.
  • the network device may also perform the following process when performing steps S601 and S602 at the same time or at different times: in response to the failure of the historical LBT failure to send the second period CSI-RS and the current LBT is successful, sending the second DCI to the terminal device; sending the aperiodic CSI-RS for candidate beam selection to the terminal device.
  • the second DCI is used to trigger the terminal equipment to receive aperiodic CSI-RS for candidate beam selection.
  • the second periodic CSI-RS and the aperiodic CSI-RS used for candidate beam selection are both used for candidate beam selection of the terminal device.
  • the aperiodic CSI-RS used for candidate beam selection may be, for example, aperiodic CSI-RS quasi-co-located with the candidate beam.
  • the network device may also perform the following process: send radio resource control RRC information to the terminal device, wherein the RRC information configures aperiodic CSI-RS for beam failure detection, and uses aperiodic CSI-RS for candidate beam selection; or, sending RRC information to the terminal equipment, wherein the RRC information configures aperiodic CSI-RS for candidate beam selection.
  • the aperiodic CSI-RS used for beam failure detection configured by the network device is determined and obtained by the network device according to the configured first aperiodic CSI-RS table, wherein, in the first aperiodic CSI-RS table Stores information of multiple aperiodic CSI-RSs for beam failure detection.
  • the network device may select the information of the aperiodic CSI-RS quasi-co-located with the beam of the current PDCCH of the terminal device from the first aperiodic CSI-RS table, and then determine the aperiodic CSI-RS for beam failure detection.
  • the first aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured N first aperiodic trigger states (aperiodic trigger states).
  • each first aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state (Transmission indication configuration state corresponding to a different beam) Configuration Indication state), used to determine the quasi-co-location relationship between the beam and aperiodic CSI-RS.
  • N represents the total number of beams of the network device.
  • Each CSI-RS set includes one aperiodic CSI-RS.
  • the aperiodic CSI-RS used for candidate beam selection configured by the network device is determined and obtained by the network device according to the configured second aperiodic CSI-RS table, wherein the second aperiodic CSI-RS table
  • the information of multiple aperiodic CSI-RSs for candidate beam selection is stored in .
  • the aperiodic CSI-RS in the second aperiodic CSI-RS table is the aperiodic CSI-RS used for candidate beam selection.
  • the second aperiodic CSI-RS table is a table determined and obtained by the network device according to the configured M second aperiodic trigger states (aperiodic trigger states).
  • each second aperiodic trigger state includes a CSI-RS set, and each aperiodic CSI-RS in the CSI-RS set is configured with a transmission indication configuration state corresponding to a different candidate beam ( Transmission Configuration Indication state), used to determine the quasi-co-location relationship between candidate beams and aperiodic CSI-RS.
  • M is 1, the CSI-RS set includes at least one aperiodic CSI-RS, and the number of aperiodic CSI-RS in the CSI-RS set is consistent with the number of candidate beams.
  • the network device can send aperiodic CSI-RS within a time interval of two first-period CSI-RSs when the first-period CSI-RS is not successfully sent, so that the terminal device can receive the CSI-RS in time Aperiodic CSI-RS is measured and beam failure detection can be performed in time.
  • the methods provided by the embodiments of the present application are respectively introduced from the perspectives of a terminal device and a network device.
  • the terminal device and the network device may include a hardware structure and a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 7 is a schematic structural diagram of a communication apparatus 70 according to an embodiment of the present application.
  • the communication device 70 shown in FIG. 7 may include a transceiver unit 701 and a processing unit 702 .
  • the transceiver unit 701 may include a sending unit and/or a receiving unit, the sending unit is used to implement the sending function, the receiving unit is used to implement the receiving function, and the transceiver unit 701 may implement the sending function and/or the receiving function.
  • the communication device 70 may be a terminal device, or a device in the terminal device, for example, a BFR device for beam failure recovery, or a device that can be matched with the terminal device.
  • the communication apparatus 70 may be a network device, or may be a device in the network device, for example, may be an aperiodic CSI-RS sending device, or may be a device that can be matched with the network device.
  • the communication device 70 is a terminal device, including:
  • a transceiver unit configured to receive aperiodic CSI-RS for beam failure detection in response to receiving a first downlink control message DCI of the network device, wherein the first DCI is used to trigger the terminal device to receive the aperiodic CSI-RS;
  • a processing unit configured to initiate a recovery process according to the selected target candidate beam in response to determining that a beam failure occurs according to the measurement result of the aperiodic CSI-RS.
  • the condition for beam failure is that the number of beam failure instance BFIs is greater than a first number threshold, and the number of non-BFIs between adjacent BFIs is less than or equal to a second number threshold;
  • the BFI indicates that the measurement result of the CSI-RS is less than the first measurement threshold corresponding to the CSI-RS;
  • the non-BFI indicates that the measurement result of the CSI-RS is greater than or equal to the second measurement threshold of the corresponding CSI-RS.
  • the processing unit is specifically configured to:
  • the processing unit is specifically configured to:
  • the historical BFI_COUNTER is cleared to obtain the current nonBFI_COUNTER.
  • the processing unit is specifically configured to:
  • the target candidate beam is selected according to the measurement result of aperiodic CSI-RS for candidate beam selection.
  • the transceiver unit is further configured to receive radio resource control RRC information of the network device, wherein the RRC information configures aperiodic CSI-RS for beam failure detection, and aperiodic CSI-RS for candidate beam selection;
  • the transceiver unit is further configured to receive RRC information of the network device, wherein the RRC information configures aperiodic CSI-RS used for candidate beam selection;
  • the processing unit is further configured to determine the aperiodic CSI-RS used for beam failure detection according to the configured first aperiodic CSI-RS table; wherein, the first aperiodic CSI-RS table stores a plurality of Information on aperiodic CSI-RS for beam failure detection.
  • the communication device 70 is a network device, including:
  • a transceiver unit configured to send a first downlink control message DCI to the terminal device in response to the failure to send the first periodic CSI-RS caused by the historical LBT failure and the current LBT is successful, wherein the first DCI is used to trigger receiving, by the terminal equipment, the aperiodic CSI-RS;
  • the transceiver unit is further configured to send aperiodic CSI-RS for beam failure detection to the terminal device.
  • the transceiver unit is further configured to send the second DCI to the terminal device in response to the failure to send the second periodic CSI-RS caused by the failure of the historical LBT and the success of the current LBT;
  • the transceiver unit is further configured to send aperiodic CSI-RS for candidate beam selection to the terminal device.
  • the transceiver unit is further configured to send radio resource control RRC information to the terminal device, wherein the RRC information configures aperiodic CSI-RS for beam failure detection, and aperiodic CSI-RS for candidate beam selection;
  • the transceiver unit is further configured to send RRC information to the terminal equipment, wherein the RRC information configures aperiodic CSI-RS for candidate beam selection.
  • FIG. 8 is a schematic structural diagram of another communication apparatus 80 provided by an embodiment of the present application.
  • the communication device 80 may be a network device, a terminal device, a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. processor etc.
  • the apparatus can be used to implement the methods described in the foregoing method embodiments, and for details, reference may be made to the descriptions in the foregoing method embodiments.
  • the Communication device 80 may include one or more processors 801 .
  • the processor 801 may be a general-purpose processor or a special-purpose processor, or the like.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.), execute computer programs, etc. , which processes data from computer programs.
  • the communication device 80 may further include one or more memories 802 on which a computer program 804 may be stored.
  • the processor 801 executes the computer program 804, so that the communication device 80 executes the methods described in the foregoing method embodiments. method.
  • the memory 802 may also store data.
  • the communication device 80 and the memory 802 can be provided separately or integrated together.
  • the communication device 80 may further include a transceiver 805 and an antenna 806 .
  • the transceiver 805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 805 may include a receiver and a transmitter, the receiver may be called a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be called a transmitter or a transmitting circuit, etc., for implementing a transmitting function.
  • the communication device 80 may further include one or more interface circuits 807 .
  • the interface circuit 807 is used to receive code instructions and transmit them to the processor 801 .
  • the processor 801 executes the code instructions to cause the communication device 80 to perform the methods described in the above method embodiments.
  • the communication device 80 is a terminal device: the processor 801 is configured to execute step S202 in FIG. 2 ; execute steps S303 , S305 and S306 in FIG. 3 ; steps S402 , S404 , S406 and S407 in FIG. 4 ; steps S502, S503, S504 and S505.
  • the transceiver 805 is configured to perform step S201 in FIG. 2 ; perform steps S301 , S302 and S304 in FIG. 3 ; steps S401 , S403 and S405 in FIG. 4 ; and step S501 in FIG. 5 .
  • the communication apparatus 80 is a network device: the transceiver 805 is configured to perform steps S601 and S602 in FIG. 6 .
  • the processor 801 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • Transceiver circuits, interfaces or interface circuits used to implement receiving and transmitting functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transmission.
  • the processor 801 may store a computer program 803, and the computer program 803 runs on the processor 801 to cause the communication device 80 to execute the methods described in the above method embodiments.
  • the computer program 803 may be embodied in the processor 801, in which case the processor 801 may be implemented by hardware.
  • the communication apparatus 80 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the first terminal device in the foregoing method embodiments), but the scope of the communication device described in this application is not limited to this, and the structure of the communication device may be Not limited by Figure 8.
  • the communication apparatus may be a stand-alone device or may be part of a larger device.
  • the communication means may be:
  • the IC set can also include a storage component for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the communication device may be a chip or a chip system
  • the chip shown in FIG. 9 includes a processor 901 and an interface 902 .
  • the number of processors 901 may be one or more, and the number of interfaces 902 may be multiple.
  • the chip further includes a memory 903 for storing necessary computer programs and data.
  • An embodiment of the present application further provides a communication system, where the system includes the communication device as the terminal device and the communication device as the network device in the foregoing embodiment in FIG. 7 , or the system includes the communication device as the terminal device in the foregoing embodiment in FIG. 8 .
  • Devices and communication devices as network equipment.
  • the present application further provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, implement the functions of any of the foregoing method embodiments.
  • the present application further provides a computer program product, which implements the functions of any of the above method embodiments when the computer program product is executed by a computer.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer program may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks, SSD)) etc.
  • At least one in this application may also be described as one or more, and the multiple may be two, three, four or more, which is not limited in this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” described technical features in no order or order of magnitude.
  • the corresponding relationships shown in each table in this application may be configured or predefined.
  • the values of the information in each table are only examples, and can be configured with other values, which are not limited in this application.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, for example, splitting, merging, and so on.
  • the names of the parameters shown in the headings in the above tables may also adopt other names that can be understood by the communication device, and the values or representations of the parameters may also be other values or representations that the communication device can understand.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.
  • Predefined in this application may be understood as defining, predefining, storing, pre-storing, pre-negotiating, pre-configuring, curing, or pre-firing.

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Abstract

Des modes de réalisation de la présente demande concernent un procédé de récupération après défaillance de faisceau (BFR), ainsi qu'un procédé et un appareil de transmission de CSI-RS apériodique, qui peuvent être appliqués à un système de communication. Le procédé consiste à : en réponse à la réception d'un premier message de commande de liaison descendante DCI d'un dispositif de réseau, recevoir un CSI-RS apériodique pour une détection de défaillance de faisceau, les premières DCI étant utilisées pour déclencher un dispositif terminal pour recevoir le CSI-RS apériodique ; et en réponse à la détermination, en fonction d'un résultat de mesure du CSI-RS apériodique, qu'une défaillance de faisceau s'est produite, déclencher un processus de récupération en fonction d'un faisceau candidat cible sélectionné. Au moyen de la mise en œuvre des modes de réalisation de la présente demande, lorsqu'un dispositif de réseau ne peut pas envoyer avec succès un premier CSI-RS périodique, un dispositif terminal peut recevoir, dans un intervalle de temps de deux premiers CSI-RS périodiques, un CSI-RS apériodique pour la mesure, de sorte que la détection de défaillance de faisceau puisse être effectuée en utilisant rapidement le CSI-RS apériodique.
PCT/CN2021/091957 2021-05-06 2021-05-06 Procédé de récupération après défaillance de faisceau (bfr), procédé et appareil de transmission de csi-rs apériodique WO2022233001A1 (fr)

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PCT/CN2021/091957 WO2022233001A1 (fr) 2021-05-06 2021-05-06 Procédé de récupération après défaillance de faisceau (bfr), procédé et appareil de transmission de csi-rs apériodique
CN202180001173.3A CN115589792A (zh) 2021-05-06 2021-05-06 波束失败恢复bfr方法、非周期csi-rs的发送方法及装置

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109152054A (zh) * 2017-06-16 2019-01-04 华硕电脑股份有限公司 无线通信系统中用于非授权频谱的波束管理的方法和设备
WO2020033406A2 (fr) * 2018-08-08 2020-02-13 Babaei Alireza Récupération de défaillance de faisceau dans des cellules sans licence

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109152054A (zh) * 2017-06-16 2019-01-04 华硕电脑股份有限公司 无线通信系统中用于非授权频谱的波束管理的方法和设备
WO2020033406A2 (fr) * 2018-08-08 2020-02-13 Babaei Alireza Récupération de défaillance de faisceau dans des cellules sans licence

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "Discussion on the beam management procedures for 52-71GHz band", 3GPP DRAFT; R1-2100203, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. E-meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051970835 *
SONY: "Beam management enhancement for NR from 52.6GHz to 71GHz", 3GPP DRAFT; R1-2103297, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. E-meeting; 20210412 - 20210420, 7 April 2021 (2021-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052178064 *
XIAOMI: "Discussion on beam management in NR from 52.6 GHz to 71GHz", 3GPP DRAFT; R1-2102979, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 6 April 2021 (2021-04-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051993330 *

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