WO2019238007A1 - Procédé et appareil de détection de faisceau - Google Patents

Procédé et appareil de détection de faisceau Download PDF

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Publication number
WO2019238007A1
WO2019238007A1 PCT/CN2019/090548 CN2019090548W WO2019238007A1 WO 2019238007 A1 WO2019238007 A1 WO 2019238007A1 CN 2019090548 W CN2019090548 W CN 2019090548W WO 2019238007 A1 WO2019238007 A1 WO 2019238007A1
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Prior art keywords
time
detection
candidate
terminal device
threshold
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PCT/CN2019/090548
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English (en)
Chinese (zh)
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王俊伟
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华为技术有限公司
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Publication of WO2019238007A1 publication Critical patent/WO2019238007A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • 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
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • Embodiments of the present application relate to the field of communications, and more specifically, to a method and apparatus for detecting a beam, a terminal device, and a network device.
  • the beamforming technology is a signal preprocessing technology based on an antenna array.
  • the beamforming technology adjusts the weight of each array element in the antenna array.
  • the coefficients produce a beam with directivity, enabling significant array gain to be obtained.
  • the beamforming technology reduces the coverage of the beam
  • the link between the base station and the terminal device based on the beam may fail, which may Will cause the data signal to be interrupted.
  • BFR beam failure recovery
  • the base station configures a candidate for the terminal device while configuring a beam used by the communication link for the terminal device (hereinafter, referred to as "current beam”).
  • current beam a beam used by the communication link for the terminal device
  • Beam the terminal device detects the current beam and the candidate beam in parallel. Therefore, when the current beam detection fails and the candidate beam detection succeeds, the terminal device can initiate a beam recovery process to request the base station to use the candidate beam to communicate with the terminal device.
  • the current beam detection process and the candidate beam detection process are independent of each other, and in order to be able to initiate the beam recovery process immediately after the current beam detection fails, the terminal device needs to take effect on the parameter configuration of the candidate beam The candidate beam is detected immediately. Therefore, when the terminal device is in a good communication environment (for example, when the terminal device is stationary or the environment of the terminal device is small), the current beam detection failure is less likely, and the candidate beam will not be used. Unnecessary power consumption due to detection of candidate beams.
  • the present application provides a method and an apparatus for detecting a beam, a terminal device, and a network device, which can reduce power consumption caused by beam detection.
  • a method for detecting a beam including: receiving configuration information sent by a network device, where the configuration information is used to indicate a detection start time of a candidate beam; and determining the detection start time of the candidate beam according to the configuration information.
  • the “beam” can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, weight of the antenna port, phase deflection of the antenna port, and amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal (CSI-RS) used for downlink channel measurement.
  • CSI-RS channel state information reference signal
  • the target beam group may refer to a beam group formed by a beam to be detected in a beam failure detection process.
  • the candidate beam may refer to a candidate beam in a beam failure detection process.
  • the candidate beam does not belong to the target beam group.
  • the beam failure detection process can also be referred to as a beam failure recovery request (beam failure recovery request process).
  • the target beam group may refer to a beam group used by the terminal device for current communication.
  • the beam currently used by the terminal device for communication belongs to the target beam group.
  • the candidate beam is a candidate beam configured by the network device for the terminal device.
  • the configuration information includes second configuration information, which is used to indicate a maximum number of detection failures N of the target beam group, where N is a positive integer and the target beam group includes at least one beam.
  • determining the detection start time of the candidate beam according to the configuration information includes: if the value of N is less than or equal to the first threshold value, starting detection of the candidate beam at the first time, the first time includes The effective moment of the parameter configuration of the candidate beam; if the value of N is greater than the first threshold, detection of the candidate beam is started at a second moment, the second moment is after the first moment.
  • the "maximum number of detection failures N of the target beam group” may indicate the number of determinations used by the terminal device when the detection of the target beam group fails.
  • the terminal device declares that the target beam group has failed after it has determined that each beam in the target beam group has failed in N detections (for example, N consecutive times).
  • announcement of detection failure of the target beam group can be understood as that the terminal device initiates the above-mentioned beam recovery process after “declaration of detection failure of the target beam group”.
  • the detection start time of the candidate beam can be understood as the starting time when the terminal device starts to detect the candidate beam (for example, detection of a reference signal sent by the base station through the candidate beam).
  • the detection start time of the candidate beam may include a start time at which the terminal device starts blindly detecting a reference signal sent by the base station through the candidate beam.
  • the “initiation time of detection of the candidate beam” may include the start time of the reference signal sent by the base station through the candidate beam determined by the terminal device according to the configuration of the network device.
  • the detection start time of the candidate beam may include the time when the terminal device starts the process of receiving the reference signal of the candidate beam and the signal quality calculation process.
  • the configuration information includes first configuration information, which is used to indicate one of the first time and the second time that is used as a detection start time of the candidate beam, and the first time includes the candidate beam
  • the effective time of the parameter configuration, the second time is after the first time.
  • a terminal device detects a candidate beam immediately after the parameter configuration of the candidate beam takes effect.
  • the candidate beam is not used, which results in the power caused by detecting the candidate beam.
  • the start time of detection of the candidate beam is associated with the detection of the target beam group, thereby , Can reduce power consumption caused by beam detection.
  • determining the time to start detection of a candidate beam according to the configuration information includes: if the value of N is less than or equal to a first threshold, After the beam parameter configuration takes effect, detection of the candidate beam is started immediately.
  • the effective parameter configuration of the beam can be understood as: the terminal device receives the parameter configuration information of the beam.
  • the parameter configuration of the beam takes effect can be understood as that the terminal device can successfully parse the parameter configuration information of the beam from the signaling sent by the network device.
  • the parameter configuration of the beam takes effect can be understood as: the terminal device feeds back to the network device confirmation information for the parameter configuration information of the beam.
  • the parameter configuration of the beam takes effect can be understood as: the terminal device can determine the latest time of the beam based on the parameter configuration information of the beam sent by the network device (for example, the beam device successfully parses the parameter of the beam from the signaling sent by the terminal device from the network device) The time when the configuration information was last) The time when the reference signal was sent.
  • the detection of a candidate beam is started immediately after the parameter configuration of the candidate beam takes effect can be understood as: the terminal device starts receiving the reference signal of the candidate beam and the signal quality from the moment when the parameter configuration of the candidate beam takes effect calculation process.
  • the detection of the candidate beam is started immediately after the parameter configuration of the candidate beam becomes effective can be understood as: the terminal device detects the reference signal transmission period of the first candidate beam after the moment when the parameter configuration of the candidate beam becomes effective The reference signal of the candidate beam.
  • the method for detecting a beam of the present application when the value of N is less than or equal to the first threshold, it can be considered that there is a greater chance of failing to declare the target beam group, or from the start of detection of the target beam group to the declared target beam
  • the time required for group failure is short.
  • by starting the detection of the candidate beam immediately after the parameter configuration of the candidate beam takes effect it can ensure that the detection of the candidate beam can be obtained when the target beam group is declared to have failed.
  • the reliability of communication can be improved, and the practicability of the present application can be improved.
  • determining the time to start detection of the candidate beam according to the configuration information includes: if the value of N is greater than the first threshold, at the second time , Starting detection of the candidate beam, and the second moment is after the moment when the parameter configuration of the candidate beam takes effect.
  • the terminal device will not start detection of the candidate beam immediately after the parameter configuration of the candidate beam becomes effective.
  • the terminal device starts to start the candidate beam at a time (that is, an example of the second time) after a specified first period of time since the parameter configuration of the candidate beam takes effect. Detection.
  • the terminal device blindly detects the reference signal of the candidate beam from the second moment.
  • the terminal device detects the reference signal of the candidate beam during the sending period of the reference signal of the first candidate beam after the second time.
  • the beam detection method of the present application when the value of N is greater than the first threshold, it can be considered that the chance of claiming that the target beam group fails is small, or that the detection from the start of the target beam group is started until the target beam group is declared to fail It takes a long time. In this case, even if the parameter configuration of the candidate beam takes effect, the detection of the candidate beam is not started immediately (or, in other words, the parameter configuration of the candidate beam takes effect after the first period of time has elapsed. For the detection of candidate beams), the detection result of the candidate beams can still be obtained when the target beam group is declared to fail, thereby reducing the power consumption waste caused by the detection of the candidate beams within the first time period.
  • the first threshold is determined according to whether a candidate beam needs to be scanned.
  • the process in which the terminal device scans the beam refers to the process in which the terminal device attempts to receive in multiple different directions in order to determine the optimal receiving beam direction.
  • the candidate beam does not need to be scanned can be understood as if the terminal device has already scanned the candidate beam at the second moment, there is no need to scan the candidate beam at the second moment.
  • the candidate beam does not need to be scanned can be understood as if the terminal device has not scanned the candidate beam, but the relevant information of the candidate beam can be obtained according to the network equipment configuration or communication protocol regulations, etc.
  • the candidate beam is scanned at the second moment.
  • the “relevant information of the candidate beam” may refer to information that needs to be obtained for the purpose of scanning, or in other words, information that needs to be obtained through scanning.
  • the candidate beam needs to be scanned can be understood as that if the terminal device has not scanned the candidate beam, the candidate beam needs to be scanned.
  • the candidate beam needs to be scanned can be understood as if the terminal device has already scanned the candidate beam at the second moment, but, for example, if the beam configuration changes, etc., it is necessary to The candidate beam is scanned.
  • the candidate beam needs to be scanned or not "may refer to whether a terminal device has obtained a detection result of a reference signal having a quasi-co-location relationship with a reference signal of the candidate beam.
  • the candidate beam can be considered as needing to be scanned.
  • the candidate beam may be considered as not requiring scanning.
  • the first threshold based on whether the candidate beam needs to be scanned, if it is determined based on the first threshold that detection of the candidate beam is started after the second moment, it is possible to ensure that there is sufficient before starting the beam recovery process.
  • the detection of candidate beams is completed in time, which can further improve the reliability and practicability of this application.
  • the first threshold is determined according to a detection period of the candidate beam.
  • the “detection period of the candidate beam” may refer to a transmission period of the reference signal of the candidate beam.
  • the first threshold is determined based on the transmission period of the reference signal of the candidate beam, and if it is determined that detection of the candidate beam is started after the second time based on the first threshold, it is possible to ensure that sufficient time is completed before starting the beam recovery process.
  • the detection of the candidate beam can further improve the reliability and practicability of the present application.
  • the first threshold is determined according to a reporting time interval of a result of detection of a beam failure.
  • the reporting interval of the result of the beam failure detection may be determined by a time interval at which the physical layer of the terminal device reports the beam detection result to the media access control layer of the terminal device.
  • the reporting interval of the detection result of the beam failure may be determined by the interval at which the terminal device sends a beam recovery request to the network device.
  • the reporting interval of the result of the beam failure detection may include a time range in which the terminal device counts the number of beam failures for a beam recovery request.
  • the first threshold is determined based on the reporting interval of the detection result of the beam failure detection. In the case where the detection of the candidate beam is started after the second time based on the first threshold, it is possible to ensure that there is sufficient time before starting the beam recovery process. The detection of the candidate beam is completed, thereby further improving the reliability and practicability of the present application.
  • INT () is a rounding function.
  • the value of M is determined according to whether the candidate beam needs to be scanned.
  • P represents the detection period of the candidate beam.
  • T represents the physical layer reporting the beam to the media access control layer.
  • the time interval of the detection result, D is the preset offset.
  • the rounding function may be an upward rounding function, that is, the above formula may be
  • the rounding function can also be a rounding down function, that is, the above formula can be
  • the value of D may be pre-configured by a network device through high-level signaling, or the value of D may be specified by a communication system or communication protocol, or the value of D may be a manufacturer or The operator is pre-configured in the terminal device.
  • the value of D can be 0, a positive number, or a negative number.
  • the first value of M is smaller than the second value of M, and the first value of M is the value of M in a case where the beams in the candidate beams do not need to be scanned, and the M
  • the second value of is the value of M in a case where a beam in the candidate beam needs to be scanned.
  • the first value of M may be 1, and the second value of M may be 4 ,.
  • the second value of the M is determined according to the number of scans corresponding to the candidate beam.
  • the detection of the candidate beam can further improve the reliability and practicability of the present application.
  • the second value of M may be the same as the number of scans corresponding to the candidate beam. For example, if the number of scans corresponding to the candidate beam is 4, the second value of M may be 4.
  • the method further includes receiving, by the terminal device, third information sent by the network device, where the third information indicates the value of M.
  • the second time is determined according to the cumulative detection failure number K of the target beam group.
  • the second time is a time when a difference between the N and the K is less than or equal to a second threshold.
  • the beam detection method of the present application when the difference between the N and the K is less than or equal to the second threshold, it can be considered that there is a greater chance of claiming that the target beam group fails, or the difference between the N and the K
  • the time from the moment when it is less than or equal to the second threshold value to the time when the target beam group fails to be declared is short. Therefore, by determining the second threshold value based on the cumulative detection failure number K of the target beam group, it is possible to ensure that the determination based on the second threshold value is performed.
  • the detection of the candidate beam is started after the second moment of time, it can be determined that there is sufficient time to complete the detection of the candidate beam before the beam recovery process is started, thereby further improving the reliability and practicability of the present application. .
  • the second threshold is determined according to at least one of the following parameters: whether a beam in the candidate beam needs to be scanned, a detection period of the candidate beam, and a physical layer reporting a beam detection result to the media access control layer. Time interval.
  • the first threshold is the same as the second threshold.
  • the method further includes : Determine a target beam that needs to be received within a first time range from the first beam and the second beam according to the information of the first beam.
  • the first beam may include a beam to be detected in a beam failure detection process or a beam recovery request process.
  • the first beam includes the beam in the target beam group, or the first beam includes the candidate beam.
  • the second beam includes a beam for carrying a preset first channel.
  • the first channel includes a physical downlink data channel (physical downlink link channel, PDSCH).
  • PDSCH physical downlink link channel
  • the information about the first beam includes information about whether the first beam needs to be detected.
  • “Whether the first beam needs to be detected” can be understood as: the network device instructs the terminal device to detect the first beam, but the terminal device can decide for itself whether to detect the first beam.
  • whether the first beam needs to be detected may refer to whether the parameter configuration of the first beam has taken effect.
  • the first beam may be considered to be detected.
  • the first beam may be considered as not requiring detection.
  • whether the first beam needs to be detected may mean that the information of the first beam includes indication information whether the first beam has been detected.
  • the first beam may be considered to be detected.
  • the first beam may be considered as not requiring detection.
  • whether the first beam needs to be detected may refer to whether a terminal device has obtained a detection result of a reference signal having a quasi-co-location relationship with a reference signal of the first beam.
  • the first beam may be considered to need to be detected.
  • the first beam may be considered as not requiring detection.
  • whether the first beam needs to be detected may refer to whether the quality of the reference signal quasi co-located with the reference signal of the first beam satisfies a preset condition.
  • the first beam may be considered as not requiring detection.
  • the first beam may be considered to require detection.
  • the first time range includes a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource.
  • the first time range is a time range in which a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource are located.
  • the first time-frequency resource is a time-frequency resource used to carry a reference signal corresponding to the first beam
  • the second time-frequency resource is a time-frequency resource corresponding to the second beam
  • the second time-frequency resource is used to carry
  • the preset first channel includes the first beam or the candidate beam.
  • the non-target beam pair By determining, from the first beam and the second beam, a target beam to be received within a first time range, or to determine a non-target beam that does not need to be received within the first time range, the non-target beam pair can be avoided
  • the interference of the target beam can thus improve the accuracy, reliability and efficiency of communication.
  • the time unit may include a symbol.
  • the time unit may include a slot, a mini-slot, or a non-slot, a transmission time interval, or a short transmission time interval.
  • the information of the first beam includes information of whether the parameter configuration of the first beam has taken effect.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the parameter configuration of the first beam does not take effect , The second beam is determined as a target beam, and detection of the first beam is prohibited.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the parameters of the first beam are configured If it has taken effect, the first beam is determined as the target beam, and the second beam is prohibited from being received.
  • the terminal device does not need to detect the beam (specifically, the reference signal of the beam). For example, the terminal device does not need to receive the reference signal of the beam and does not need to Calculate the quality of the beam's reference signal.
  • the information of the first beam includes indication information of whether the first beam has been detected.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the first beam has not been detected, Determining the first beam as a target beam, and prohibiting receiving the second beam.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the first beam is detected If yes, the second beam is determined as the target beam, and the detection of the first beam is prohibited.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: If the quality of the co-located reference signal satisfies a preset condition (for example, the quality is lower than a preset quality threshold), the second beam is determined as a target beam, and the detection of the first beam is prohibited.
  • a preset condition for example, the quality is lower than a preset quality threshold
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: If the quality of the quasi-co-located reference signal does not satisfy a preset condition (for example, the quality is higher than a preset quality threshold), the first beam is determined as a target beam, and the reception of the second beam is prohibited.
  • a preset condition for example, the quality is higher than a preset quality threshold
  • a method for detecting a beam which includes: determining a detection start time of a candidate beam; and sending configuration information, where the configuration information is used to indicate the detection start time.
  • the configuration information is used to indicate one of the first time and the second time that is used as the detection start time of the candidate beam, the first time includes the effective time of the parameter configuration of the candidate beam, and the second time is located at After that first moment.
  • determining the detection start time of the candidate beam in the beam failure detection includes: if the value of the maximum number of detection failures N of the target beam group is less than or equal to a first threshold, determining that the detection start time is the first time, The first time includes the effective time of the parameter configuration of the candidate beam, where N is a positive integer and the target beam group includes at least one beam; if the value of N is greater than the first threshold, it is determined that the detection start time is the first Two moments, the second moment is after the first moment.
  • the first threshold is determined according to at least one of the following parameters: whether the candidate beam needs to be scanned, a detection period of the candidate beam, or a reporting time interval of a result of a beam failure detection.
  • the second moment is determined according to the cumulative detection failure number K of the target beam group and the maximum detection failure number N of the target beam group, where N is a positive integer and the target beam group includes at least one beam.
  • the second time is a time when a difference between the N and the K is less than or equal to a second threshold.
  • a terminal device detects a candidate beam immediately after the parameter configuration of the candidate beam takes effect.
  • the candidate beam is not used, which results in the power caused by detecting the candidate beam.
  • the start time of detection of the candidate beam is associated with the detection of the target beam group, thereby , Can reduce power consumption caused by beam detection.
  • a method for detecting a beam including: determining a detection start time of a second beam according to a maximum number of detection failures N of a first beam group, where N is a positive integer, and the first beam group includes at least One beam, the second beam does not belong to the first beam group; at the moment when the detection is started, detection for the second beam is started.
  • the “beam” can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, weight of the antenna port, phase deflection of the antenna port, and amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the “detection” may refer to detection of a beam during a beam failure detection process or a beam recovery request process.
  • the first beam group may refer to a beam group formed by a beam to be detected in a beam failure detection process.
  • the first beam group is a beam group used by the terminal device for current communication.
  • the beam currently used by the terminal device for communication belongs to the first beam group.
  • the second beam is a candidate beam configured by the network device for the terminal device.
  • the second beam may refer to a candidate beam in the beam failure detection process.
  • the "maximum number of detection failures N for the first beam group" may indicate the number of determinations used by the terminal device when the detection of the first beam group is failed.
  • the terminal device declares that the first beam group has failed after determining that each beam in the first beam group has failed in N detections (for example, N consecutive times).
  • “declaring the detection failure of the first beam group” can be understood as that the terminal device initiates the beam recovery process after “declaring the detection failure of the first beam group”.
  • the “time when the detection for the second beam is started” may be understood as the start of the terminal device detecting the second beam (for example, detecting the reference signal sent by the base station through the second beam). time.
  • the “time when the detection for the second beam is started” may include the start time when the terminal device starts to blindly detect the reference signal sent by the base station through the second beam.
  • the “time when the detection for the second beam is started” may include the start time of the reference signal sent by the base station through the second beam and determined by the terminal device according to the configuration of the network device.
  • the “time when the detection for the second beam is started” may include the time when the terminal device starts the process of receiving the reference signal of the second beam and the signal quality calculation process.
  • the detection time for starting the second beam includes a first time or a second time
  • the first time includes a valid time of parameter configuration of the second beam
  • the second time is located after the first time.
  • the terminal device detects the second beam immediately after the parameter configuration of the second beam takes effect.
  • the second beam is not used, which results in the detection of the second beam.
  • the time of detection for the second beam is determined based on the configuration information, and the start time of the detection of the second beam is compared with the first beam group.
  • the detection conditions of the X are related, so that the power consumption caused by the beam detection can be reduced.
  • determining the time to start detection for the second beam according to the configuration information includes: if the value of N is less than or equal to the first threshold, immediately after the parameter configuration of the second beam takes effect, Detection of the second beam.
  • the effective parameter configuration of the beam can be understood as: the terminal device receives the parameter configuration information of the beam.
  • the parameter configuration of the beam takes effect can be understood as that the terminal device can successfully parse the parameter configuration information of the beam from the signaling sent by the network device.
  • the parameter configuration of the beam takes effect can be understood as: the terminal device feeds back to the network device confirmation information for the parameter configuration information of the beam.
  • the parameter configuration of the beam takes effect can be understood as: the terminal device can determine the latest time of the beam based on the parameter configuration information of the beam sent by the network device (for example, the beam device successfully parses the parameter of the beam from the signaling sent by the terminal device from the network device) The time when the configuration information was last) The time when the reference signal was sent.
  • the detection of the second beam is started immediately after the parameter configuration of the second beam takes effect can be understood as: the terminal device starts the reference signal of the second beam from the moment the parameter configuration of the second beam takes effect. Receive and signal quality calculation process.
  • the detection of the second beam is started immediately after the parameter configuration of the second beam takes effect can be understood as: the reference signal of the first second beam after the moment when the parameter configuration of the second beam takes effect In the transmission period, a reference signal of the second beam is detected.
  • the beam detection method of the present application when the value of N is less than or equal to the first threshold, it can be considered that there is a greater chance of claiming failure of the first beam group, or from the start of detection of the first beam group to the claim
  • the time required for the first beam group to fail is relatively short.
  • by starting the detection of the second beam immediately after the parameter configuration of the second beam takes effect it can be ensured that when the failure of the first beam group is declared, The detection result of the second beam can be obtained, thereby improving the reliability of communication and further improving the practicability of the present application.
  • determining the time to start detection for the second beam according to the configuration information includes: if the value of N is greater than the first threshold, then at the second time, start detection for the second beam, the first The second time is after the time when the parameter configuration of the second beam takes effect.
  • the terminal device will not start detection for the second beam immediately after the parameter configuration of the second beam takes effect.
  • the terminal device starts at a time (that is, an example of the second time) after a specified first time period since the parameter configuration of the second beam takes effect. Detection of two beams.
  • the terminal device blindly detects the reference signal of the second beam from the second moment.
  • the terminal device detects the reference signal of the second beam during the sending period of the reference signal of the first second beam after the second time.
  • the method for detecting a beam of the present application when the value of N is greater than the first threshold, it can be considered that the chance of claiming failure of the first beam group is small, or from the start of detection of the first beam group to the time of claiming the first It takes a long time for a beam group to fail.
  • detection of the second beam is not started immediately after the parameter configuration of the second beam takes effect (or after the parameter configuration of the second beam takes effect).
  • Detection of the second beam is started after the first duration), and the detection result of the second beam can still be obtained when the failure of the first beam group is declared, so that the detection of the second beam during the first duration can be reduced. Waste of power consumption.
  • the first threshold is determined according to a situation in which the second beam needs to be scanned.
  • the process in which the terminal device scans the beam refers to the process in which the terminal device attempts to receive in multiple different directions in order to determine the optimal receiving beam direction.
  • the second beam does not need to be scanned can be understood as if the terminal device has already scanned the second beam at the second moment, there is no need to scan the second beam at the second moment.
  • the second beam does not need to be scanned can be understood as if the terminal device has not scanned the second beam, but can obtain the relevant information of the second beam according to the configuration of the network device or the communication protocol, etc. There is no need to scan the second beam at the second moment.
  • the “relevant information of the second beam” may refer to information that needs to be obtained for the purpose of scanning, or in other words, information that needs to be obtained through scanning.
  • the second beam needs to be scanned can be understood as that if the terminal device has not scanned the second beam, the second beam needs to be scanned.
  • the second beam needs to be scanned can be understood as if the terminal device has already scanned the second beam at the second moment, but, for example, if the beam configuration changes, etc. The second beam is scanned at all times.
  • "whether the second beam needs to be scanned” may refer to whether the terminal device has obtained a detection result of a reference signal having a quasi-co-location relationship with the reference signal of the second beam.
  • the second beam may be considered to require scanning.
  • the second beam may be considered as not requiring scanning.
  • the first threshold is determined according to a detection period of the second beam.
  • the “detection period of the second beam” may refer to a transmission period of a reference signal of the second beam.
  • the first threshold is determined based on the transmission period of the reference signal of the second beam, and if it is determined based on the first threshold that detection of the second beam is started after the second moment, it is possible to ensure that there is sufficient before starting the beam recovery process.
  • the detection of the second beam is completed in time, so that the reliability and practicability of the present application can be further improved.
  • the first threshold is determined according to a time interval at which the physical layer reports a beam detection result to the media access control layer.
  • the “time interval at which the physical layer reports a beam detection result to the media access control layer” may include a time range in which the terminal device counts the number of beam failures for a beam recovery request.
  • the “time interval at which the physical layer reports a beam detection result to the media access control layer” may include a time interval at which the terminal device sends a beam recovery request to the network device.
  • the first threshold is determined based on the time interval at which the beam detection result is reported to the media access control layer by the physical layer, and in the case where it is determined that the detection for the second beam is started after the second moment based on the first threshold, it is possible to ensure that the There is sufficient time to complete the detection of the second beam before the beam recovery process, so as to further improve the reliability and practicability of this application.
  • INT () is a rounding function
  • the value of M is determined according to whether the second beam needs to be scanned
  • P represents the detection period of the second beam
  • T represents the physical layer to the media access control layer.
  • the time interval at which the beam detection result is reported, D is a preset offset.
  • the rounding function may be an upward rounding function, that is, the above formula may be
  • the rounding function can also be a rounding down function, that is, the above formula can be
  • the value of D may be pre-configured by a network device through high-level signaling, or the value of D may be specified by a communication system or communication protocol, or the value of D may be a manufacturer or The operator is pre-configured in the terminal device.
  • the value of D can be 0, a positive number, or a negative number.
  • the first value of M is smaller than the second value of M, and the first value of M is the value of M in a case where the beam in the second beam does not need to be scanned.
  • the second value of M is the value of M when the beam in the second beam needs to be scanned.
  • the first value of M may be 1, and the second value of M may be 4 ,.
  • the second value of the M is determined according to the number of scans corresponding to the second beam.
  • the first threshold By determining the first threshold based on the number of scans corresponding to the second beam, it can be ensured that if the detection based on the first threshold is to start the detection for the second beam after the second moment, it can be determined that there is sufficient before starting the beam recovery process.
  • the detection of the second beam is completed in time, so that the reliability and practicability of the present application can be further improved.
  • the second value of M may be the same as the number of scans corresponding to the second beam. For example, if the number of scans corresponding to the second beam is 4, the second value of M may be 4.
  • the method further includes receiving, by the terminal device, indication information of the value of M sent by the network device.
  • the second time is determined according to the cumulative detection failure number K of the first beam group.
  • the second time is a time when a difference between the N and the K is less than or equal to a second threshold.
  • the beam detection method of the present application when the difference between the N and the K is less than or equal to the second threshold, it can be considered that there is a greater chance of claiming the failure of the first beam group, or the difference between the N and the K
  • the time from the moment when the value is less than or equal to the second threshold to the time when the first beam group fails is declared is short. Therefore, by determining the second threshold based on the cumulative detection failure number K of the first beam group, it is possible to ensure that In the case where the detection of the second beam is started after the second moment when the two thresholds are determined, it can be determined that there is sufficient time to complete the detection of the second beam before starting the beam recovery process, thereby further improving the reliability and practicality of the present application. Sex. .
  • the second threshold is determined according to at least one of the following parameters: whether the beam in the second beam needs to be scanned, the detection period of the second beam, and the physical layer reporting the beam to the media access control layer Interval of test results.
  • the first threshold is the same as the second threshold.
  • the method further includes : According to the information of the third beam, from the third beam and the fourth beam, determine a target beam that needs to be received within a first time range.
  • the third beam includes a beam in the first beam group or the second beam.
  • the information of the third beam includes information about whether the third beam needs to be detected.
  • “Whether the third beam needs to be detected” can be understood as: the network device instructs the terminal device to detect the third beam, but the terminal device can decide whether to detect the third beam.
  • whether the third beam needs to be detected may refer to whether the parameter configuration of the third beam has taken effect.
  • the third beam may be considered to be detected.
  • the third beam may be considered as not requiring detection.
  • whether the third beam needs to be detected may mean that the information of the third beam includes indication information of whether the third beam has been detected.
  • the third beam may be considered to be detected.
  • the third beam may be considered as not requiring detection.
  • whether the third beam needs to be detected may refer to whether the terminal device has obtained a detection result of a reference signal having a quasi-co-location relationship with the reference signal of the third beam.
  • the third beam may be considered to require detection.
  • the third beam may be considered as not requiring detection.
  • whether the third beam needs to be detected may refer to whether the quality of the reference signal quasi co-located with the reference signal of the third beam satisfies a preset condition.
  • the third beam may be considered as not requiring detection.
  • the third beam may be considered to require detection.
  • the method for determining whether the third beam listed above needs to be detected is merely an exemplary description, and the present application is not limited thereto.
  • the methods and processes that enable a terminal device to decide whether to detect a certain beam fall into the present application. In the range.
  • the first time range includes a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource.
  • the first time range is a time range in which a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource are located.
  • the first time-frequency resource is a time-frequency resource used to carry a reference signal corresponding to a third beam
  • the second time-frequency resource is a time-frequency resource corresponding to a fourth beam
  • the second time-frequency resource is used to carry The preset first channel
  • the third beam includes the first beam or the second beam.
  • the non-target beam pair By determining, from the third beam and the fourth beam, a target beam to be received within a first time range, or to determine a non-target beam that does not need to be received within the first time range, the non-target beam pair can be avoided
  • the interference of the target beam can thus improve the accuracy, reliability and efficiency of communication.
  • the time unit may include a symbol.
  • the time unit may include a slot, a mini-slot, or a non-slot, a transmission time interval, or a short transmission time interval.
  • the information of the third beam includes information about whether the parameter configuration of the third beam has taken effect.
  • determining the target beam to be received within the first time range from the third beam and the fourth beam according to the information of the third beam including: if the parameter configuration of the third beam does not take effect , The fourth beam is determined as a target beam, and detection of the third beam is prohibited.
  • determining the target beam to be received within the first time range from the third beam and the fourth beam according to the information of the third beam includes: if the parameter configuration of the third beam is If it is in effect, the third beam is determined as the target beam, and the reception of the fourth beam is prohibited.
  • the terminal device does not need to detect the beam (specifically, the reference signal of the beam). For example, the terminal device does not need to receive the reference signal of the beam and does not need to Calculate the quality of the beam's reference signal.
  • the information of the third beam includes indication information of whether the third beam has been detected.
  • determining the target beam to be received within the first time range from the third beam and the fourth beam according to the information of the third beam includes: if the third beam has not been detected, The third beam is determined as the target beam, and receiving the fourth beam is prohibited.
  • determining the target beam to be received within the first time range from the third beam and the fourth beam according to the information of the third beam includes: if the third beam is detected If yes, the fourth beam is determined as the target beam, and the detection of the third beam is prohibited.
  • the target beam that needs to be received within the first time range from the third beam and the fourth beam is determined according to the information of the third beam, including: If the quality of the co-located reference signal satisfies a preset condition (for example, the quality is lower than a preset quality threshold), the fourth beam is determined as a target beam, and the detection of the third beam is prohibited.
  • a preset condition for example, the quality is lower than a preset quality threshold
  • the target beam that needs to be received within the first time range from the third beam and the fourth beam is determined according to the information of the third beam, including: If the quality of the quasi-co-located reference signal does not satisfy a preset condition (for example, the quality is higher than a preset quality threshold), the third beam is determined as a target beam, and the reception of the fourth beam is prohibited.
  • a preset condition for example, the quality is higher than a preset quality threshold
  • the first channel includes a physical downlink data channel PDSCH.
  • a method for beam selection which includes: in a case where the first time-frequency resource and the second time-frequency resource overlap, or when the first time-frequency resource and the second time-frequency resource are in time.
  • the first time-frequency resource is a time-frequency resource used to carry a reference signal corresponding to the first beam
  • the second time-frequency resource is a pre-
  • the time-frequency resource occupied by the first channel is set, and the first beam includes a beam to be detected or a candidate beam.
  • the information of the first beam it is determined from the first beam and the second beam that it needs to be in a first time range. Received target beam.
  • the information about the first beam includes information about whether the first beam needs to be detected.
  • “Whether the first beam needs to be detected” can be understood as: the network device instructs the terminal device to detect the first beam, but the terminal device can decide for itself whether to detect the first beam.
  • whether the first beam needs to be detected may refer to whether the parameter configuration of the first beam has taken effect.
  • the first beam may be considered to be detected.
  • the first beam may be considered as not requiring detection.
  • whether the first beam needs to be detected may mean that the information of the first beam includes indication information whether the first beam has been detected.
  • the first beam may be considered to be detected.
  • the first beam may be considered as not requiring detection.
  • whether the first beam needs to be detected may refer to whether a terminal device has obtained a detection result of a reference signal having a quasi-co-location relationship with a reference signal of the first beam.
  • the first beam may be considered to need to be detected.
  • the first beam may be considered as not requiring detection.
  • the first time range includes a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource.
  • the first time range is a time range in which a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource are located.
  • the first time-frequency resource is a time-frequency resource used to carry a reference signal corresponding to the first beam
  • the second time-frequency resource is a time-frequency resource corresponding to the second beam
  • the second time-frequency resource is used to carry
  • the preset first channel includes the first beam or the second beam.
  • the non-target beam pair By determining, from the first beam and the second beam, a target beam to be received within a first time range, or to determine a non-target beam that does not need to be received within the first time range, the non-target beam pair can be avoided
  • the interference of the target beam can thus improve the accuracy, reliability and efficiency of communication.
  • the time unit may include a symbol.
  • the time unit may include a slot, a mini-slot, or a non-slot, a transmission time interval, or a short transmission time interval.
  • the information of the first beam includes information of whether the parameter configuration of the first beam has taken effect.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the parameter configuration of the first beam does not take effect , The second beam is determined as a target beam, and detection of the first beam is prohibited.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the parameters of the first beam are configured If it has taken effect, the first beam is determined as the target beam, and the second beam is prohibited from being received.
  • the terminal device does not need to detect the beam (specifically, the reference signal of the beam). For example, the terminal device does not need to receive the reference signal of the beam and does not need to Calculate the quality of the beam's reference signal.
  • the information of the first beam includes indication information of whether the first beam has been detected.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the first beam has not been detected, Determining the first beam as a target beam, and prohibiting receiving the second beam.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: if the first beam is detected If yes, the second beam is determined as the target beam, and the detection of the first beam is prohibited.
  • the information of the first beam includes information about whether the quality of the reference signal of the first beam satisfies a preset condition.
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: If the quality of the co-located reference signal satisfies a preset condition (for example, the quality is lower than a preset quality threshold), the second beam is determined as a target beam, and the detection of the first beam is prohibited.
  • a preset condition for example, the quality is lower than a preset quality threshold
  • determining the target beam to be received within the first time range from the first beam and the second beam according to the information of the first beam includes: If the quality of the quasi-co-located reference signal does not satisfy a preset condition (for example, the quality is higher than a preset quality threshold), the first beam is determined as a target beam, and the reception of the second beam is prohibited.
  • a preset condition for example, the quality is higher than a preset quality threshold
  • the first channel includes a physical downlink data channel PDSCH.
  • an apparatus for detecting a beam which includes a unit for performing each step of the method in any one of the first to third aspects and the implementation methods thereof.
  • the communication device is a communication chip.
  • the communication chip may include an input circuit or interface for transmitting information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (for example, a terminal device or a network device), and the communication chip may include a transmitter for transmitting information or data, and a receiver for receiving information or data.
  • an apparatus for beam selection which includes a unit for performing each step of the method in the foregoing fourth aspect and implementations thereof.
  • the communication device is a communication chip
  • the communication chip may include an input circuit or interface for transmitting information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (for example, a terminal device), and the communication chip may include a transmitter for transmitting information or data, and a receiver for receiving information or data.
  • a terminal device including a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the terminal device executes the first aspect or any possible implementation manner of the first aspect Method, or the method in the third aspect or any one of the possible implementations of the third aspect, or the method in the fourth aspect or any one of the possible implementations of the fourth aspect.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • a network device including a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the network device executes the second aspect or any possible implementation manner of the second aspect Method, or the fourth aspect or the method in any one of the possible implementations of the fourth aspect. .
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • the processor may be used to perform, for example, but not limited to, baseband related processing, and the receiver and the transmitter may be respectively used to perform, such as, but not limited to, radio frequency transceiver.
  • the above devices may be provided on separate chips, or at least partly or entirely on the same chip.
  • the receiver and the transmitter may be provided on the receiver chip and the transmitter chip which are independent of each other. It can be integrated into a transceiver and then set on the transceiver chip.
  • the processor may be further divided into an analog baseband processor and a digital baseband processor.
  • the analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on a separate chip.
  • digital baseband processors can be used with multiple application processors (such as, but not limited to, graphics processors, multimedia processors, etc.) Integrated on the same chip.
  • application processors such as, but not limited to, graphics processors, multimedia processors, etc.
  • Such a chip may be referred to as a system chip. Whether each device is independently set on a different chip or integrated on one or more chips depends on the specific needs of the product design. The embodiment of the present application does not limit the specific implementation form of the above device.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes any one of the first aspect to the fourth aspect and any possible implementation manner of the first aspect to the fourth aspect.
  • the processor may be a chip, an input circuit may be an input pin, an output circuit may be an output pin, and a processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and output
  • the circuits may be the same circuit, which are used as input circuits and output circuits respectively at different times.
  • the embodiments of the present application do not limit specific implementations of the processor and various circuits.
  • a processing device including: a memory and a processor.
  • the processor is configured to read an instruction stored in the memory, and can receive a signal through a receiver and transmit a signal through a transmitter to execute any one of the first to fourth aspects and the first to fourth aspects.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • the memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated on the same chip as the processor, or may be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the way of setting the memory and the processor.
  • ROM read-only memory
  • a chip including a processor and a memory, where the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, and the computer program is used to implement the first aspect to the first.
  • the method in the four aspects and any one of the possible implementation methods of the first to fourth aspects.
  • a computer program product includes a computer program (also referred to as code or instructions), and when the computer program is executed, causes a computer to execute the first aspect to The method in the fourth aspect and any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also referred to as code or instructions
  • a computer-readable medium stores a computer program (also referred to as code, or instructions) that when executed on a computer, causes the computer to execute the first aspect to The method in the fourth aspect and any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also referred to as code, or instructions
  • the terminal device detects the second beam immediately after the parameter configuration of the second beam takes effect.
  • the second beam is not used, which results in the detection of the second beam.
  • the time of detection for the second beam is determined based on the first information, and the start time of the detection of the second beam is compared with the first beam. The detection of the group is related, and thus the power consumption caused by the beam detection can be reduced.
  • FIG. 1 is a schematic architecture diagram of a communication system of the present application.
  • FIG. 2 is a schematic flowchart of an example of a beam detection method of the present application.
  • FIG. 3 is a schematic diagram of a measurement result reporting process of the present application.
  • FIG. 4 is a schematic flowchart of an example of a process of sending second information in the present application.
  • FIG. 5 is a schematic flowchart of an example of a beam selection method of the present application.
  • FIG. 6 is a schematic block diagram of an example of an apparatus for detecting a beam of the present application.
  • FIG. 7 is a schematic block diagram of an example of a terminal device of the present application.
  • FIG. 8 is a schematic block diagram of another example of the beam detection apparatus of the present application.
  • FIG. 9 is a schematic block diagram of an example of a network device of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device in this embodiment of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device , User terminal, terminal, wireless communication device, user agent, or user device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or public land mobile networks (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile networks
  • the terminal device may also be a wearable device.
  • Wearable devices can also be referred to as wearable smart devices, which are the general name for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a device that is worn directly on the body or is integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also powerful functions through software support, data interaction, and cloud interaction.
  • Broad-spectrum wearable smart devices include full-featured, large-sized, full or partial functions that do not rely on smart phones, such as smart watches or smart glasses, and only focus on certain types of application functions, and need to cooperate with other devices such as smart phones Use, such as smart bracelets, smart jewelry, etc. for physical signs monitoring.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • the IoT is an important part of the development of future information technology. Its main technical feature is to pass items through communication technology. It is connected to the network, so as to realize the intelligent network of human-machine interconnection and internet of things.
  • the IOT technology can implement, for example, a narrowband NB technology to achieve mass connection, deep coverage, and terminal power saving.
  • the NB includes only one resource block (resource bloc, RB), that is, the bandwidth of the NB is only 180 KB.
  • resource bloc resource block
  • the terminals must be discrete in access. According to the communication method of the embodiment of the present invention, the congestion problem of mass terminals of IOT technology when accessing the network through NB can be effectively solved.
  • the terminal device may also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (some terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to Network equipment transmits uplink data.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device.
  • the network device may be a Global System for Mobile Communication (GSM) system or a code division multiple access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA code division multiple access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB NodeB, eNB or eNodeB
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future
  • a network device in a 5G network or a network device in a future evolved PLMN network may be an access point (AP) in a WLAN, or a gNB in a new wireless system (NR) system.
  • AP access point
  • gNB new wireless system
  • NR new wireless system
  • an access network device provides services to a cell
  • a terminal device communicates with the access network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell.
  • a transmission resource for example, a frequency domain resource or a spectrum resource
  • It may be a cell corresponding to an access network device (such as a base station), and the cell may belong to a macro base station or a small cell.
  • the small cell here may include: a metro cell, a micro cell ( micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.
  • multiple carriers on the carrier in the LTE system or 5G system can work on the same frequency at the same time.
  • the above carrier and cell concepts can be considered equivalent.
  • CA carrier aggregation
  • Cell ID cell identification
  • the concept of a carrier is the same as a cell.
  • a UE accessing a carrier and accessing a cell are equivalent.
  • the core network device may be connected to multiple access network devices for controlling the access network device, and may distribute data received from the network side (for example, the Internet) to the access network device.
  • the network side for example, the Internet
  • the network device may include a base station (gNB), such as a macro station, a micro base station, an indoor hotspot, and a relay node.
  • a base station such as a macro station, a micro base station, an indoor hotspot, and a relay node.
  • the function is to send radio waves to the terminal device.
  • the aspect sends scheduling information to control uplink transmission, and receives radio waves sent by the terminal device, and receives uplink data transmission.
  • terminal equipment The functions and specific implementations of the terminal equipment, access network equipment, and core network equipment listed above are merely exemplary descriptions, and the present application is not limited thereto.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiment of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • multiple application programs can be run at the application layer.
  • the application program that executes the communication method in the embodiment of the present application and the method for controlling the receiving end device to complete the received data The application of the corresponding action may be a different application.
  • FIG. 1 is a schematic diagram of a system 100 capable of applying a communication method according to an embodiment of the present application.
  • the system 100 includes an access network device 102, and the access network device 102 may include one antenna or multiple antennas, for example, antennas 104, 106, 108, 110, 112, and 114.
  • the access network device 102 may additionally include a transmitter chain and a receiver chain.
  • Those of ordinary skill in the art can understand that each of them can include multiple components related to signal transmission and reception (such as a processor, a modulator, Router, demodulator, demultiplexer or antenna, etc.).
  • the access network device 102 may communicate with multiple terminal devices (such as the terminal device 116 and the terminal device 122). However, it can be understood that the access network device 102 can communicate with any number of terminal devices similar to the terminal device 116 or the terminal device 122.
  • the terminal devices 116 and 122 may be, for example, cellular phones, smartphones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and / or any other suitable devices for communicating on the wireless communication system 100. device.
  • the terminal device 116 communicates with the antennas 112 and 114, where the antennas 112 and 114 send information to the terminal device 116 through a forward link (also referred to as a downlink) 118 and through the reverse link (also (Referred to as the uplink) 120 receives information from the terminal device 116.
  • the terminal device 122 communicates with the antennas 104 and 106, where the antennas 104 and 106 send information to the terminal device 122 through the forward link 124 and receive information from the terminal device 122 through the reverse link 126.
  • forward link 118 may use a different frequency band from reverse link 120, and forward link 124 may use a different frequency band than reverse link 126.
  • the frequency band may be used in a frequency division duplex (FDD) system.
  • FDD frequency division duplex
  • the forward link 118 and the reverse link 120 may use a common frequency band
  • the link 126 may use a common frequency band.
  • Each antenna (or antenna group consisting of multiple antennas) and / or area designed for communication is called a sector of the access network device 102.
  • the antenna group may be designed to communicate with terminal devices in a sector covered by the access network device 102.
  • An access network device can send signals to all terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity.
  • the transmitting antenna of the access network device 102 can also use beamforming to improve the forward link 118 and 124. Signal to noise ratio.
  • the access network device 102 uses beamforming to randomly scattered terminal devices 116 and 122 in the relevant coverage area. When transmitting signals, mobile devices in adjacent cells experience less interference.
  • the access network device 102, the terminal device 116, or the terminal device 122 may be a wireless communication sending device and / or a wireless communication receiving device.
  • the wireless communication transmitting device may encode the data for transmission.
  • the wireless communication transmitting device may obtain (for example, generate, receive from another communication device, or save in a memory, etc.) a certain number of data bits to be transmitted to the wireless communication receiving device through a channel.
  • Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to generate a plurality of code blocks.
  • the communication system 100 may be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an IoT network, or other networks.
  • FIG. 1 is only a simplified schematic diagram of an example.
  • the network can also include other access network equipment, which is not shown in Figure 1.
  • data or information may be carried by time-frequency resources, where the time-frequency resources may include resources in the time domain and resources in the frequency domain.
  • the time-frequency resource may include one or more time units.
  • a time unit may be a symbol, or a mini-slot, or a slot, or a subframe, where the duration of a subframe in the time domain may be It is 1 millisecond (ms).
  • a time slot consists of 7 or 14 symbols.
  • a mini time slot can include at least one symbol (for example, 2 symbols or 7 symbols or 14 symbols, or less than or equal to 14 symbols). Any number of symbols).
  • two communication devices having a communication connection may respectively obtain a gain through beamforing.
  • the sending end for example, a network device
  • the receiving end for example, a terminal device
  • the sending end can obtain the pairing relationship between the transmitting beam and the receiving beam through beam training.
  • the beam can be understood as a spatial filter or a spatial parameter.
  • the beam used to send a signal can be called a transmission beam (transmission beam, Tx beam), which can be a spatial transmission filter (spatial domain transmission filter) or a spatial transmission parameter (spatial domain transmission parameter);
  • the beam used to receive the signal can be called To receive a beam (reception beam, Rx beam), it can be a spatial receive filter (spatial domain receive filter) or a spatial receive parameter (spatial domain receive parameter).
  • the beam forming technology may be a beam forming technology or other technologies.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.
  • a transmitting beam may refer to a signal intensity distribution in different directions of a space after a signal is transmitted through an antenna
  • a receiving beam may refer to a signal intensity distribution of a wireless signal received from an antenna in different directions in space.
  • the beam may be, for example, a spatial filter.
  • a spatial filter for example, a spatial filter.
  • the beam pairing relationship that is, the pairing relationship between the transmitting beam and the receiving beam, that is, the pairing relationship between the spatial transmitting filter and the spatial receiving filter. Transmitting a signal between a transmitting beam and a receiving beam having a beam pairing relationship can obtain a large beamforming gain.
  • the transmitting end may send the reference signal in a beam scanning manner, and the receiving end may also receive the reference signal in a beam scanning manner.
  • the transmitting end may form beams with different directivity in space by means of beamforming, and may poll on multiple beams with different directivity to transmit the reference signal through the beams with different directivity, so that The power of the reference signal to transmit the reference signal in the direction pointed by the transmission beam can reach the maximum.
  • the receiving end can also form beams with different directivity in the space by means of beamforming, and can poll on multiple beams with different directivity to receive the reference signal through the beams with different directivity, so that the receiving end receives The power of the reference signal can be maximized in the direction pointed by the receiving beam.
  • the receiving end can perform channel measurement based on the received reference signal, and report the measurement result to the transmitting end. For example, the receiving end may report a part of the reference signal receiving power (reference signal receiving power (RSRP)) of the larger reference signal resource to the transmitting end, such as reporting the identifier of the reference signal resource, so that the transmitting end uses the channel when transmitting data or signaling Better quality beam pairing to send and receive signals.
  • RSRP reference signal receiving power
  • the reference signal used for channel measurement in beam training may be, for example, a channel state information reference signal (CSI-RS), a synchronization signal block (SSB) used for downlink channel measurement. , May also be a sounding reference signal (SRS) for uplink channel measurement.
  • the reference signal resource can be used to configure the transmission properties of the reference signal, for example.
  • the reference signal resources in the embodiments of the present application may include CSI-RS resources (resource), SSB resources (SS / PBCH, Block Source, and SRS resources).
  • the identifiers of the reference signal resources may include CSI-RS resources, for example.
  • CSI-RS resource identifier CRI
  • SSBRI SSB resource identifier
  • SRS resource identifier SRS resource identifier
  • the method 100 for detecting a beam of the present application is described in detail below with reference to FIGS. 2 to 4.
  • FIG. 2 shows a schematic flow of an example of a method 100 for detecting a beam of the present application.
  • the terminal device #A receives the configuration information #A sent by the network device #A.
  • the configuration information #A may be periodically sent by the network device #A, or the configuration information #A may also be dynamically sent by the network device #A as needed, which is not particularly limited in this application.
  • the configuration information #A may include, but is not limited to, the following information.
  • the beam group #A may include one or more beams.
  • the beams in the beam group #A may be objects of beam failure detection performed by the terminal device #A.
  • the beam in the beam group #A may be a beam currently used by a communication link between the terminal device #A and the network device #A.
  • this information # 1 may include information of a reference signal used in the detection process of the beams in the beam group #A.
  • the information of the reference signal may include, but is not limited to, a type, a quantity, a transmission period, an offset, and the like of the reference signal.
  • the “offset” may refer to an offset of a start time of a reference signal with respect to a start time of the cycle within a period.
  • the specific content of the beam information listed above is only an exemplary description, which is not particularly limited in this application.
  • the configuration parameters of the beam of the present application may be similar to those in the prior art. Here, in order to avoid redundant description, detailed descriptions thereof are omitted.
  • the beam group #B may include one or more beams.
  • the beam in the beam group #B may be a candidate beam used by the terminal device #A when the detection of the beam group #A is failed.
  • the beam in the beam group #B may be a determination target of the process of determining the detection start time of the present application.
  • this information # 2 may include information of a reference signal used in the detection process of the beam (for example, beam #b) in the beam group #B.
  • the information # 1 or the information # 2 may be carried in the configuration information #A, or the information # 1 or the information # 2 may be independent of the configuration information #A, or in other words, the information # 1 or The information # 2 may be sent separately from the configuration information #A, which is not particularly limited in this application. That is, in the present application, the configuration information #A may also include the information # 1 or the information # 2.
  • the maximum number of detection failures N may be the number of determinations used by the terminal device #A when the detection failure of the beam group #A is declared.
  • the terminal device #A may declare that the detection of the beam group #A has failed.
  • each of the detection results of the failure detection process for the beam in the beam group #A in the middle of each detection Because: each beam in the beam group #A fails, the terminal device #A may declare that the detection of the beam group #A fails.
  • the terminal device #A may initiate the BFR process after “declaring that the detection of the beam group #A has failed”.
  • the detection failure of any beam may refer to a measurement result of a reference signal for the beam # 1 within a time interval for reporting a beam detection result as:
  • the signal quality (for example, the signal-to-noise ratio) is lower than a predetermined determination threshold.
  • the detection success of any one beam may mean that, within a time interval for reporting a beam detection result, the measurement result of the reference signal for the beam # 2 is signal quality (for example, the signal-to-noise ratio) is higher than a predetermined determination threshold.
  • the process of beam failure detection may be performed periodically, and the information # 4 may be used to indicate the beam failure detection. Cycle.
  • the information # 4 may include a transmission period of reference signals of the beams in the beam group #A.
  • the instance may be determined based on a minimum transmission period T min among reference signal transmission periods of a plurality of beams in the beam group #A.
  • the instance may be a value specified by a communication system or a communication protocol.
  • the instance of the beam failure detection process for beam group #A may be the larger of the T min and a preset value (for example, 2 ms) specified by the system.
  • the information # 4 may exist alone, or the function of the information # 4 may also be provided by the information # 1. That is, in the present application, the configuration information #A may also include the information # 4.
  • the information # 5 may include two types of values, which are recorded as a value # 1 and a value # 2.
  • the value of the information # 5 is the value # 1 (for example, 1), it may indicate that the terminal device #A needs to start detection for the beam #b after the parameter configuration of the beam #b takes effect.
  • the value of the information # 5 is the value # 1 (for example, 1)
  • the first time is the time when the parameter configuration of the beam #b takes effect.
  • the terminal device #A When the value of the information # 5 is the value # 2 (for example, 0), it may indicate that the terminal device #A does not need to start detection for the beam #b immediately after the parameter configuration of the beam #b takes effect.
  • the value of the information # 5 is a value # 2 (for example, 0)
  • the second time is after the first time.
  • the configuration information #A also includes both information # 3 and information # 5, or may include only one of information # 3 and information # 5.
  • the terminal device #A may determine the time when the detection for the beam #b is started according to the configuration information #A.
  • the “time when the detection for the beam #b is started” can be understood as the starting time when the terminal device #A detects the beam #b.
  • the “time when the detection for the beam #b is started” may include the start time of the detection by the terminal device #A of the reference signal sent by the network device #A through the beam #b.
  • the start time of detection of the reference signal sent by the terminal device #A to the network device #A through the beam #b can be understood as that the terminal device #A starts to blindly detect the network device #A through the beam #b. Start time of the transmitted reference signal.
  • the start time of the detection of the reference signal sent by the terminal device #A to the network device #A through the beam #b can be understood as the terminal device #A among the reference signals periodically transmitted by the network device #A through the beam #b.
  • the start time of the time-frequency resource carried by the first detected reference signal can be understood as the terminal device #A among the reference signals periodically transmitted by the network device #A through the beam #b.
  • the “time when the detection for the beam #b is started” may include the following two cases.
  • the detection for the beam #b is started immediately.
  • the effective time of the configuration parameter of the beam #b be time #a (that is, an example of the first time)
  • time #b that is, an example of the first time
  • the time #b and the time #a are At the same time.
  • the terminal device #A may start blindly detecting the reference signal sent by the network device #A through the beam #b immediately after the configuration parameters of the beam #b take effect. In other words, the terminal device #A may blindly detect the reference signal of the beam #b from time #b (or, time #a).
  • the terminal device #A may detect the reference signal from the first reference signal located after the effective time of the configuration parameter of the beam #b among the reference signals periodically transmitted by the network device #A through the beam #b. In other words, the terminal device #A may detect the reference signal of the beam #b starting from the first reference signal after the time #b (or in other words, the time #a).
  • the detection for the beam #b is not started immediately.
  • the effective time of the configuration parameter of the beam #b is time #a
  • the time when the detection of the beam #b is started is time #c
  • the time #c is located after the time #a.
  • the preset time length #a that is, an example of the first time length
  • detection for the beam #b is started. That is, the time duration between the time #c and the time #a is the time duration #a.
  • the terminal device #A may not blindly detect the reference signal sent by the network device #A through the beam #b immediately after the configuration parameters of the beam #b take effect. That is, the terminal device #A may blindly detect the reference signal sent by the network device #A through the beam #b after the duration #a that the configuration parameter of the beam #b has taken effect. In other words, the terminal device #A can blindly detect the reference signal of the beam #b from the time #c.
  • the terminal device #A may start from the first reference signal after the preset time period #a of the reference signals periodically transmitted by the network device #A through the beam #b, beginning with the configuration parameter effective time of the beam #b, The reference signal is detected.
  • the terminal device #A may detect the reference signal of the beam #b starting from the first reference signal after the time #b.
  • At least one of the following methods may be used to determine the specific situation of the moment when the detection for the beam #b is started (that is, case 1 or case 2).
  • the terminal device #A may determine a specific case (ie, case 1 or case 2) of the moment when the detection for the beam #b is started based on the above-mentioned information # 3.
  • the terminal device #A may determine the magnitude relationship between the value of the maximum detection failure number N for the beam group #A and the preset threshold value #A.
  • the terminal device #A may determine that the time when the detection for the beam #b is started is the time of the above case 1. That is, if N is less than or equal to the threshold #A, the terminal device #A may determine to start detection for the beam #b immediately after the configuration parameters of the beam #b become effective.
  • the terminal device #A When the value of N is less than or equal to the threshold #A, the terminal device #A is more likely to claim that the beam group #A fails, or that is, from the start of detection of the beam group #A to the point where the beam group #A fails to be declared
  • the time required is relatively short. In this case, by starting the detection of beam #b immediately after the parameter configuration of the beam #b takes effect, it can be ensured that when the beam group # fails to be declared, the terminal device #A has obtained the beam #
  • the detection result of b can thereby ensure that the detection result of beam #b is carried in the beam recovery request, thereby improving the reliability of communication and further improving the practicability of the present application.
  • the terminal device #A may determine that the time when the detection for the beam #b is started is the time of the above case 2. That is, if N is greater than the threshold #A, the terminal device #A may start the detection for the beam #b after waiting for the duration #a since the configuration parameters of the beam #b take effect.
  • the terminal device #A When the value of N is greater than the threshold #A, the terminal device #A is less likely to claim that the beam group #A fails, or that it needs to go through from the start of detection for the beam group #A to the claim that the beam group #A fails. In this case, even if the parameter configuration of the beam #b does not start immediately after the parameter configuration of the beam #b takes effect (or in other words, the time #a elapses after the parameter configuration of the beam #b takes effect. For the detection of the beam #b), the detection result of the beam #b can still be obtained when the beam group failure #A is declared, thereby reducing the waste of power consumption caused by the detection of the beam #b within the time period #a.
  • the threshold #A may be determined based on at least one of the following parameters.
  • the terminal device needs to scan the beam #b to determine the direction of the beam #b.
  • the terminal device #A when the terminal device #A has multiple antennas, the terminal device #A needs to scan the beam #b through each antenna respectively, so as to determine the antenna with the best reception quality for the beam #b.
  • whether the beam #b needs to be scanned can be understood as whether the terminal device #A has determined the direction of the beam #b, or whether the terminal device #A has determined the receiving antenna of the beam #b. Receiving direction.
  • the beam #b does not need to be scanned” can be understood as that the terminal device #A has already performed a scan for the beam #b.
  • the beam #b does not need to be scanned” can be understood as that the terminal device #A has determined the receiving direction of the receiving antenna for the beam #b.
  • the terminal device #A may determine the receiving direction of the receiving antenna for the beam #b based on the instruction or history of the network device #A.
  • the beam #b needs to be scanned can be understood as that the terminal device #A has not yet performed a scan for the beam #b.
  • the beam #b needs to be scanned can be understood as that the terminal device #A needs to re-scan the love beam #b due to changes in the environment or movement.
  • the A1 may be greater than A2 Value.
  • the threshold #A By determining the threshold #A based on whether the beam #b needs to be scanned or not, if it is determined based on the threshold #A that the detection for the beam #b is started after the time #b, it is possible to ensure that there is Enough time to complete the detection of the beam #b, thereby further improving the reliability and practicability of the present application.
  • the value of the threshold #A and the size of the detection period of the beam #b may have a positive correlation, that is, the larger the detection period of the beam #b, the larger the value of the threshold #A.
  • the threshold #A By determining the threshold #A based on the detection period of the beam #b, in the case where it is determined based on the threshold #A that the detection for the beam #b is started after the time #b, it is possible to ensure that sufficient time is completed before the beam recovery process is started.
  • the detection of the beam #b can further improve the reliability and practicability of the present application.
  • the value of the threshold #A may have a negative correlation with the size of the instance, that is, the larger the instance, the smaller the value of the threshold #A.
  • the threshold #A is determined based on the time interval at which the beam detection result is reported to the media access control layer based on the physical layer of the terminal device #A. In the case where it is determined based on the threshold #A that the detection for the beam #b is started after time #b, It can ensure that sufficient time is completed to detect the beam #b before starting the beam recovery process, so that the reliability and practicability of the present application can be further improved.
  • the threshold value #A may be determined based on any one of the following formulae 1 to 4.
  • X represents the value of the threshold #A
  • INT () is a rounding function
  • M is determined according to whether the beam #b needs to be scanned
  • P represents the detection period of the beam #b
  • T Represents the time interval at which the physical layer reports the beam detection result to the media access control layer.
  • D is the preset offset.
  • the rounding function may be an upward rounding function.
  • the above formula 1 may be
  • the rounding function may be a rounding down function.
  • the above formula 1 may be
  • the value of D may be pre-configured by network equipment through high-level signaling, or the value of D may also be specified by the communication system or communication protocol, or the value of D The value can also be pre-configured in the terminal device by the manufacturer or operator.
  • the value of D may be a positive integer.
  • the value of D can be a negative integer.
  • the value of D may be zero.
  • M2 is greater than M1.
  • the value of M2 may be determined according to the number of times the terminal device #A needs to scan the beam #b.
  • the value of M2 may be the same as the number of times that the terminal device #A needs to scan the beam #b.
  • the value of M2 may be 4.
  • the method and process for determining the threshold value #A listed above is only an exemplary description, and the present invention is not limited thereto.
  • the specific value of the threshold value #A may also be predetermined by a communication system or a communication protocol, or The specific value of the threshold #A may also be determined by the network device #A and delivered to the terminal device #A.
  • the terminal device #A may determine a specific case (ie, case 1 or case 2) of the moment when the detection for the beam #b is started based on the information # 5.
  • the method 300 for determining the specific value of the information # 5 by the network device #A, or the method 300 for determining the time when the terminal device #A starts the detection for the beam #b is described in detail.
  • the network device #A may determine the magnitude relationship between the value of the maximum detection failure number N for the beam group #A and the preset threshold value #A.
  • the network device #A may determine that the time when the detection for the beam #b is started is the time of the above case 1. That is, if N is less than or equal to the threshold #A, the information # 5 may instruct the terminal device #A to start detection for the beam #b immediately after the configuration parameters of the beam #b become effective. That is, in this case, the network device #A can determine that the value of the information # 5 is "1".
  • the network device #A When the value of N is less than or equal to the threshold #A, the network device #A has a higher possibility of claiming that the beam group #A fails, or that is, from the start of detection of the beam group #A to the point where the beam group #A fails to be declared
  • the time required is relatively short. In this case, by starting the detection of beam #b immediately after the parameter configuration of the beam #b takes effect, it can be ensured that when the beam group # is declared to fail, the network device #A has obtained the beam #
  • the detection result of b can thereby ensure that the detection result of beam #b is carried in the beam recovery request, thereby improving the reliability of communication and further improving the practicability of the present application.
  • the network device #A may determine that the time when the detection for the beam #b is started is the time of the above case 2. That is, if N is greater than the threshold #A, the information # 5 may instruct the terminal device #A to start detection for the beam #b after the configuration parameter #a has begun to wait for the duration #a. That is, in this case, the network device #A can determine that the value of the information # 5 is "0".
  • the network device #A When the value of N is greater than the threshold #A, the network device #A is less likely to claim that the beam group #A fails, or that it needs to go through from the start of detection for the beam group #A to the claim that the beam group #A fails. In this case, even if the parameter configuration of the beam #b does not start immediately after the parameter configuration of the beam #b takes effect (or in other words, the time #a elapses after the parameter configuration of the beam #b takes effect. For the detection of the beam #b), the detection result of the beam #b can still be obtained when the beam group failure #A is declared, thereby reducing the waste of power consumption caused by the detection of the beam #b within the time period #a.
  • the network device #A may determine the threshold #A based on one or more of the parameters 1 to 3 described above.
  • the use method of each parameter may be similar to the use method of each parameter by the terminal device #A described in the foregoing manner 1.
  • detailed descriptions thereof are omitted.
  • the method for determining the specific value of the network device #A determining information # 5 above is merely an exemplary description, and the present application is not limited thereto.
  • the network device #A may also determine the information # according to the moving speed of the terminal device.
  • the detection of the beam #b is started immediately after the configuration parameters take effect, that is, in this case, the network device #A may determine that the value of the information # 5 is "1".
  • the network device #A declares that the probability of the failure of the beam group #A is small. Therefore, the information # 5 may indicate the terminal device #A. After waiting for the duration #a since the configuration parameters of the beam #b become effective, detection for the beam #b is started, that is, in this case, the network device #A can determine that the value of the information # 5 is “0”.
  • the terminal device #A can determine the specific situation of the moment when the detection for the beam #b is started based on the indication of the information # 4 (ie, case 1 or case 2)
  • the terminal device #A may detect the beam of the beam group #A after the parameter configuration of the beam in the beam group #A takes effect, and record the Number of consecutive detection failures K.
  • the “detection failure of the beam group #A” may mean that, within a time interval for reporting a beam detection result, the detection result of each beam in the beam group #A is a detection failure.
  • beam group #A fails K consecutive detections may mean that within a time interval of consecutive K reporting of beam detection results, beam group #A fails to detect.
  • K is an integer greater than or equal to two.
  • recording the number K of consecutive detection failures of beam group #A may refer to the following process:
  • the value of K is 0, where i is an integer
  • terminal device #A may set this K to 1;
  • the terminal device #A may set the K to 2;
  • the terminal device #A may set this K to 0.
  • the value of K is incremented by 1 every time the beam group #A fails to detect continuously.
  • the value of K is set to 0.
  • the terminal device #A may determine whether the L is less than or equal to a preset threshold #B.
  • the terminal device #A may determine the time when the L is less than or equal to the preset threshold #B as the above-mentioned time #c.
  • the above-mentioned duration #a is the duration that has elapsed from the moment when the beam #b becomes effective to the moment #c.
  • the terminal device #A may start detection for the beam #b in S226.
  • the terminal device #A may return to S222 and wait for the K value to be updated.
  • the threshold #B may be determined based on at least one of the following parameters.
  • the beam #b has a predetermined direction. Therefore, when the terminal device #A has multiple antennas, the terminal device #A needs to pass through each Each antenna scans the beam #b, thereby determining the antenna with the best reception quality for the beam #b.
  • the beam #b does not need to be scanned” can be understood as that the terminal device #A has already performed a scan for the beam #b.
  • the beam #b does not need to be scanned” can be understood as that the terminal device #A has determined the receiving antenna for the beam #b.
  • the terminal device #A may determine the receiving antenna for the beam #b based on the instruction or history of the network device #A.
  • the beam #b needs to be scanned can be understood as that the terminal device #A has not yet performed a scan for the beam #b.
  • the beam #b needs to be scanned can be understood as that the terminal device #A needs to re-scan the love beam #b due to changes in the environment or movement.
  • the A1 may be greater than A2 Value.
  • the value of the threshold #B and the size of the detection period of the beam #b may have a positive correlation, that is, the larger the detection period of the beam #b, the larger the value of the threshold #B.
  • the value of the threshold #B may have a negative correlation with the size of the instance, that is, the larger the instance, the smaller the value of the threshold #B.
  • the threshold #B By determining the threshold #B based on the time interval at which the physical layer of the terminal device #A reports the beam detection result to the media access control layer, it is possible to ensure that sufficient time is available to complete the detection of the beam #b before starting the beam recovery process, which can further Improve the reliability and practicability of this application.
  • the threshold value #B may be determined based on any one of the following formulae 5 to 8.
  • Y represents the value of the threshold #B
  • INT () is a rounding function
  • M is determined according to whether the beam #b needs to be scanned
  • P represents the detection period of the beam #b
  • T Represents the time interval at which the physical layer reports the beam detection result to the media access control layer.
  • D is the preset offset.
  • the rounding function may be an upward rounding function.
  • the foregoing formula 5 may be
  • the rounding function may be a rounding down function.
  • the above formula 5 may be
  • the value of D ′ may be pre-configured by a network device through high-level signaling, or the value of D ′ may also be prescribed by a communication system or a communication protocol, or, the The value of D 'can also be pre-configured in the terminal device by the manufacturer or operator.
  • D ' may be a positive integer.
  • the value of D ' may be a negative integer.
  • the value of D ′ may be zero.
  • M2 is greater than M1.
  • the value of M2 may be determined according to the number of times the terminal device #A needs to scan the beam #b.
  • the value of M2 may be the same as the number of times that the terminal device #A needs to scan the beam #b.
  • the value of M2 may be 4.
  • the method and process for determining the threshold value #B listed above are only exemplary descriptions, and the present invention is not limited thereto.
  • the specific value of the threshold value #B may be predetermined by a communication system or a communication protocol, or The specific value of the threshold #B may also be determined by the network device #A and delivered to the terminal device #A.
  • the threshold #B may be the same as the above-mentioned threshold #A.
  • the terminal device detects the beam #b immediately after the parameter configuration of the beam #b as a candidate beam takes effect.
  • the beam is not used. #b, resulting in wasted power consumption due to detection beam #b.
  • the start time of detection is associated with the detection of the beam group #A, so that power consumption due to beam detection can be reduced.
  • time-frequency resource #A there may be a time-frequency resource (denoted as time-frequency resource #A) corresponding to a reference signal of the beam # 1 (for example, the beam in the beam group #A or the beam #b) to be detected.
  • time-frequency resource #B the time-frequency resources (denoted as time-frequency resource #B) of channel #A of beam # 2 overlap, thereby causing the transmission of the reference signal and the transmission of channel #A to interfere with each other, thereby affecting the accuracy and reliability of communication Sex and efficiency.
  • the beam # 1 and the beam # 2 are different, it may be necessary to perform switching of the receiving antenna to complete the reception conversion between the beam # 1 and the beam # 2.
  • the time-frequency resource #A and the time-frequency resource #B are adjacent in the time domain. Therefore, since there is a time delay due to antenna switching, on the later received beam, Transmission may experience packet loss.
  • FIG. 5 shows a schematic flow of a method 400 for the selection of beam # 1 and beam # 2.
  • the time-frequency resource #A corresponding to the reference signal of the beam # 1 to be detected overlaps with the time-frequency resource #B of the channel #A carried on the beam # 2.
  • the time unit corresponding to the time-frequency resource #A and the time unit corresponding to the time-frequency resource #B are adjacent in the time domain.
  • time-frequency resource #A and time-frequency resource #B may mean that time-frequency resource #A and time-frequency resource #B partially or completely overlap in the time domain, and that time-frequency resource #A and time-frequency resource #A overlap with time-frequency resource #B. Resource #B partially or completely overlaps in the frequency domain.
  • the beam # 1 may be a beam in the beam group #A or a beam in the beam group #B.
  • the channel #A may be a PDSCH.
  • the channel #A may also be a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the terminal device #A may determine the information of the beam # 1.
  • the terminal device #A may determine the target beam that needs to be received and the non-target beam that does not need to receive from the beam # 1 and the beam # 2 according to the information of the beam # 1.
  • the information of the beam # 1 may refer to whether the beam # 1 needs to be detected. That is, in this application, although the network device instructs the terminal device to detect the beam # 1, the terminal device can determine whether to detect the beam # 1 by itself.
  • the information of the beam # 1 may include at least one of the following information.
  • terminal device #A perform the beam selection process at time # 1. If information a indicates that the parameter configuration of beam # 1 has taken effect at that time # 1, terminal device #A may determine beam # 1 as the target to be detected. Beam, determine beam # 2 as a non-target beam that does not need to be received.
  • the terminal device #A may determine the beam # 2 as a target beam to be received, and determine the beam # 1 as a non-target that does not need to be detected Beam.
  • terminal device #A perform the beam selection process at time # 1. If information b indicates that beam # 1 has been detected between time # 1, terminal device #A may determine beam # 2 as the target to be received. Beam, determine beam # 1 as a non-target beam that does not need to be detected.
  • the terminal device #A may determine the beam # 2 as a target beam to be received, and determine the beam # 1 as a non-target that does not need to be detected. Beam.
  • the interference of the non-target beams with the target beams can be avoided, thereby improving the accuracy of communication, Reliability and efficiency.
  • the terminal device has obtained the information of the detection result of the reference signal #x, which is a reference signal having a quasi-co-location relationship with the reference signal of the beam # 1.
  • the terminal device #A may determine that the beam # 2 needs to be received
  • the beam # 1 is determined as a non-target beam that does not need to be detected.
  • the terminal device #A may determine the beam # 1 as a target beam to be detected, and determine the beam # 2 as a target that does not need to be received. Non-target beam.
  • the interference of the non-target beams with the target beams can be avoided, thereby improving the accuracy of communication, Reliability and efficiency.
  • the reference signal #x is a reference signal having a quasi co-location relationship with the reference signal of the beam # 1.
  • the terminal device #A may determine the beam # 2 as a target beam to be received, and Beam # 1 is determined as a non-target beam that does not need to be detected.
  • the terminal device #A may determine the beam # 1 as a target beam to be detected , And determine beam # 2 as a non-target beam that does not receive detection.
  • the interference of the non-target beams with the target beams can be avoided, thereby improving the accuracy of communication, Reliability and efficiency.
  • FIG. 6 is a first schematic diagram of a beam detection apparatus 10 according to an embodiment of the present application.
  • the beam detection apparatus 10 may be a terminal device, or may be a chip or a circuit. The chip or circuit of the end device.
  • the apparatus 10 for detecting a beam may include a processing unit 11 (that is, an example of a processing unit) and a storage unit 12.
  • the storage unit 12 is configured to store instructions
  • the processing unit 11 is configured to execute the instructions stored by the storage unit 12 so that the apparatus 10 for beam detection implements a terminal device (for example, the above-mentioned terminal device # in the corresponding method in FIG. 2).
  • the apparatus 10 for detecting a beam may further include an input port 13 (that is, an example of a communication unit) and an output port 14 (that is, another example of a communication unit).
  • the processing unit 11, the storage unit 12, the input port 13 and the output port 14 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • the storage unit 12 is used to store a computer program, and the processing unit 11 may be used to call and run the computer program from the storage unit 12 to control the input port 13 to receive signals and control the output port 14 to send signals to complete the above method. Steps for the terminal device.
  • the storage unit 12 may be integrated in the processing unit 11, or may be provided separately from the processing unit 11.
  • the input port 13 is a receiver
  • the output port 14 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 13 is an input interface
  • the output port 14 is an output interface
  • the functions of the input port 13 and the output port 14 may be considered to be implemented through a transceiver circuit or a dedicated chip for transceiver.
  • the processing unit 11 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a manner of using a general-purpose computer may be considered to implement the terminal device provided in the embodiment of the present application.
  • the program code that will realize the functions of the processing unit 11, the input port 13, and the output port 14 is stored in the storage unit 12.
  • the general processing unit implements the functions of the processing unit 11, the input port 13, and the output port 14 by executing the code in the storage unit 12. .
  • the input port 13 is configured to receive configuration information, and the configuration information is used to indicate a detection start time of a candidate beam;
  • the processing unit 11 is configured to determine a detection start time of the candidate beam according to the configuration information.
  • the configuration information includes first configuration information, and the first configuration information is used to indicate one of the first time and the second time that is used as a detection start time of the candidate beam, and the first time includes The valid time of the parameter configuration of the candidate beam, and the second time is after the first time.
  • the configuration information includes second configuration information, where the second configuration information is used to indicate a maximum detection failure number N of the target beam group, where N is a positive integer, and the target beam group includes at least one beam .
  • the processing unit 11 is configured to, if the value of N is less than or equal to the first threshold value, immediately after the parameter configuration of the candidate beam takes effect, detection of the candidate beam is started.
  • the processing unit 11 is configured to, if the value of N is greater than the first threshold, start detection of a candidate beam after a second time, the second time being at a time when the parameter configuration of the candidate beam is effective after that.
  • the first threshold is determined according to at least one of the following parameters:
  • the first threshold X is determined according to the following formula:
  • INT () is a rounding function
  • the value of M is determined according to whether the candidate beam needs to be scanned
  • P represents the detection period of the candidate beam
  • T represents the physical layer to the media access control layer.
  • the time interval at which the beam detection result is reported, D is a preset offset.
  • the first value of M is smaller than the second value of M, and the first value of M is the value of M in a case where the beam in the candidate beam does not need to be scanned.
  • the second value of M is a value of M in a case where a beam in the candidate beam needs to be scanned.
  • the second value of M is determined according to the number of scans corresponding to the candidate beam.
  • the second time is determined according to the cumulative detection failure number K of the target beam group.
  • the second time is a time when a difference between the N and the K is less than or equal to a second threshold.
  • the second threshold is determined according to at least one of the following parameters:
  • the first threshold is the same as the second threshold.
  • the first time-frequency resource overlaps with the second time-frequency resource, or the first time-frequency resource and the second time-frequency resource are adjacent in the time domain, where the first time-frequency resource is Time-frequency resources for carrying reference signals corresponding to the first beam, the second time-frequency resources being time-frequency resources corresponding to the second beam, and the second time-frequency resources being used to carry a preset first channel,
  • the first beam includes the target beam or the candidate beam.
  • the processing unit 11 is configured to determine a target beam to be received within a first time range from the first beam and the second beam according to the information of the first beam, and the first beam
  • the information of the beam includes indication information of whether the parameter configuration of the first beam has taken effect, and / or the information of the first beam includes indication information of whether the first beam has been detected, and the first time range Including a time unit corresponding to the first time-frequency resource and a time unit corresponding to the second time-frequency resource.
  • the processing unit 11 is configured to: if the parameter configuration of the first beam does not take effect, The second beam is determined as the target beam and the detection of the first beam is prohibited; if the parameter configuration of the first beam has taken effect, the first beam is determined as the target beam and the reception of the second beam is prohibited.
  • the processing unit 11 is configured to: if the first beam has not been detected, The first beam is determined as the target beam and the reception of the second beam is prohibited; if the first beam has been detected, the second beam is determined as the target beam and the detection of the first beam is prohibited.
  • the first channel includes a physical downlink data channel PDSCH.
  • each module or unit in the beam detection apparatus 10 listed above are only exemplary descriptions, and each module or unit in the beam detection apparatus 10 may be used to perform each action performed by the terminal device in the above method or Processing process, here, in order to avoid redundant description, its detailed description is omitted.
  • FIG. 7 is a schematic structural diagram of a terminal device 20 provided in this application.
  • the terminal device 20 includes a processor, a memory, a control circuit, an antenna, and an input / output device.
  • the processor is mainly used to process the communication protocol and communication data, and control the entire terminal device, execute a software program, and process the data of the software program.
  • the processor is used to support the terminal device to execute the foregoing method for transmitting a precoding matrix.
  • the memory is mainly used to store software programs and data, such as the codebook described in the foregoing embodiment.
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit and the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input / output devices such as a touch screen, a display screen, and a keyboard, are mainly used to receive data input by the user and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. After the radio frequency circuit processes the baseband signal, the radio frequency signal is sent out in the form of electromagnetic waves through the antenna.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • FIG. 7 shows only one memory and a processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processor is mainly used to control and execute the entire terminal device.
  • the processor in FIG. 7 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, which are interconnected through technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit may also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data may be built in the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having a transmitting and receiving function may be regarded as the transmitting and receiving unit 201 of the terminal device 20, and the processor having the processing function may be regarded as the processing unit 202 of the terminal device 20.
  • the terminal device 20 includes a transceiver unit 201 and a processing unit 202.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like.
  • the device for implementing the receiving function in the transceiver unit 201 can be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 201 can be regarded as a transmitting unit, that is, the transceiver unit 201 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, and the like
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit and the like.
  • FIG. 8 is a second schematic diagram of a beam detection apparatus 30 according to an embodiment of the present application.
  • the apparatus 30 may be a network device (for example, network device #A), or a chip or a circuit. , Such as a chip or circuit that can be set in a network device.
  • the device 30 may include a processing unit 31 and a storage unit 32.
  • the storage unit 32 is configured to store instructions
  • the processing unit 31 is configured to execute the instructions stored by the storage unit 32 to enable the apparatus 30 to implement the steps performed by the network device in the foregoing method.
  • the device 30 may further include an input port 33 (that is, an example of a communication unit) and an output port 33 (that is, another example of a processing unit).
  • an input port 33 that is, an example of a communication unit
  • an output port 33 that is, another example of a processing unit.
  • processing unit 31, the storage unit 32, the input port 33 and the output port 34 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • a manner of using a general-purpose computer may be considered to implement the network device provided in the embodiment of the present application.
  • the program code that implements the functions of the processing unit 31, the input port 33, and the output port 34 is stored in a storage unit, and the general-purpose processing unit implements the functions of the processing unit 31, input port 33, and output port 34 by executing the code in the storage unit.
  • the storage unit 32 is used to store a computer program, and the processing unit 31 may be used to call and run the calculation program from the storage unit 32 to determine the second information according to the maximum number of detection failures N for the target beam group, N Is a positive integer, the target beam group includes at least one beam, and the second information is used to indicate whether the terminal device starts detection of the candidate beam immediately after the parameter configuration of the candidate beam takes effect;
  • the output port 34 is configured to send the second information to a terminal device.
  • the target beam group is a beam group used by the terminal device for current communication.
  • the beam currently used by the terminal device for communication belongs to the target beam group.
  • the candidate beam is a candidate beam configured by the network device for the terminal device.
  • the processing unit 31 may be configured to: if the value of N is less than or equal to the first threshold, determine that the second information instructs the terminal device to start detection of the candidate beam immediately after the parameter configuration of the candidate beam takes effect.
  • the processing unit 31 may be configured to: if the value of N is greater than the first threshold, determine that the second information instructs the terminal device to start detection of a candidate beam after a second time, where the second time is located in the After the moment when the parameter configuration of the candidate beam takes effect.
  • the first threshold is determined according to whether a candidate beam needs to be scanned.
  • the first threshold is determined according to a detection period of the candidate beam.
  • the first threshold is determined according to a time interval at which the physical layer reports a beam detection result to the media access control layer.
  • INT () is a rounding function.
  • the value of M is determined according to whether the candidate beam needs to be scanned.
  • P represents the detection period of the candidate beam.
  • T represents the physical layer reporting the beam to the media access control layer.
  • the time interval of the detection result, D is the preset offset.
  • the rounding function may be an upward rounding function, that is, the above formula may be
  • the rounding function can also be a rounding down function, that is, the above formula can be
  • the value of D may be pre-configured by a network device through high-level signaling, or the value of D may be specified by a communication system or communication protocol, or the value of D may be a manufacturer or The operator is pre-configured in the terminal device.
  • the first value of M is smaller than the second value of M, and the first value of M is the value of M in a case where the beams in the candidate beams do not need to be scanned, and the M
  • the second value of is the value of M in a case where a beam in the candidate beam needs to be scanned.
  • the first value of M may be 1, and the second value of M may be 4 ,.
  • the second value of the M is determined according to the number of scans corresponding to the candidate beam.
  • the second value of M may be the same as the number of scans corresponding to the candidate beam. For example, if the number of scans corresponding to the candidate beam is 4, the second value of M may be 4.
  • the second time is determined according to the cumulative detection failure number K of the target beam group.
  • the second time is a time when a difference between the N and the K is less than or equal to a second threshold.
  • the second threshold is determined according to at least one of the following parameters: whether a beam in the candidate beam needs to be scanned, a detection period of the candidate beam, and a physical layer reporting a beam detection result to the media access control layer. Time interval.
  • the first threshold is the same as the second threshold.
  • modules or units in the device 30 listed above are only exemplary descriptions, and the modules or units in the device 30 may be used to perform the functions performed by the network device (for example, the network device #A) in the above method. Action or processing procedure, here, in order to avoid redundant description, detailed description is omitted.
  • FIG. 9 is a schematic structural diagram of a network device 40 according to an embodiment of the present application, which may be used to implement functions of a network device (for example, an access network device #A or a core network device # ⁇ ) in the foregoing method.
  • the network device 40 includes one or more radio frequency units, such as a remote radio unit (RRU) 401 and one or more baseband units (BBUs) (also known as digital units, DUs). 402.
  • RRU 401 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and may include at least one antenna 4011 and a radio frequency unit 4012.
  • the RRU 401 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending a signaling message described in the foregoing embodiment to a terminal device.
  • the BBU 402 part is mainly used for baseband processing and controlling base stations.
  • the RRU 401 and the BBU 402 may be physically located together, or may be physically separated from each other, that is, a distributed base station.
  • the BBU 402 is a control center of a base station, and may also be referred to as a processing unit, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on.
  • the BBU (Processing Unit) 402 may be used to control the base station 40 to execute the operation procedure on the network device in the foregoing method embodiment.
  • the BBU 402 may be composed of one or more single boards, and multiple single boards may jointly support a single access system wireless access network (such as an LTE system or a 5G system), or may separately support different Access standard wireless access network.
  • the BBU 402 further includes a memory 4021 and a processor 4022.
  • the memory 4021 is used to store necessary instructions and data.
  • the memory 4021 stores the codebook and the like in the foregoing embodiment.
  • the processor 4022 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 4021 and the processor 4022 may serve one or more single boards. That is, the memory and processor can be set separately on each board. It may also be that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • SoC system-on-chip
  • all or part of the functions of part 402 and part 401 may be implemented by SoC technology, for example, a base station function chip
  • the base station function chip integrates a processor, a memory, an antenna interface and other devices.
  • a program of the base station related functions is stored in the memory, and the processor executes the program to realize the base station related functions.
  • the base station function chip can also read a memory external to the chip to implement related functions of the base station.
  • FIG. 9 the structure of the network device illustrated in FIG. 9 is only one possible form, and should not be construed as any limitation in the embodiments of the present application. This application does not exclude the possibility of other forms of base station structures that may appear in the future.
  • the embodiment of the present application further provides a communication system including the foregoing network device and one or more terminal devices.
  • the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and special-purpose integrations.
  • Circuit application specific integrated circuit, ASIC
  • ready-made programmable gate array field programmable gate array, FPGA
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), or Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access Access memory
  • SDRAM synchronous dynamic random access Access memory
  • double SDRAM double SDRAM
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct RAMbus RAM direct RAMbus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, a computer, a server, or a data center.
  • 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, a data center, and the like, including one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic.
  • the implementation process constitutes any limitation.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil de détection d'un faisceau. Le procédé consiste à : recevoir des informations de configuration envoyées par un dispositif de réseau, les informations de configuration étant utilisées pour indiquer un moment de début de détection d'un faisceau candidat ; selon les informations de configuration, déterminer le moment de début de détection du faisceau candidat. Dans l'état de la technique, après qu'une configuration de paramètre du faisceau candidat prend effet, un dispositif terminal détecte immédiatement le faisceau candidat ; dans le cas où aucune défaillance de détection ne se produit dans un groupe de faisceaux à détecter, le faisceau candidat n'est pas utilisé, de sorte qu'il en résulte un gaspillage de consommation d'énergie en raison de la détection d'un faisceau candidat. Par contre, selon le procédé de détection du faisceau dans la présente demande, en déterminant le moment de la détection du faisceau candidat sur la base de la configuration, le moment de début de détection du faisceau candidat est associé à une condition de détection d'un groupe de faisceaux cible à détecter, de sorte que la consommation d'énergie provoquée par une détection de faisceau puisse être réduite.
PCT/CN2019/090548 2018-06-15 2019-06-10 Procédé et appareil de détection de faisceau WO2019238007A1 (fr)

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CN114079940B (zh) * 2020-08-14 2024-02-13 维沃移动通信有限公司 候选波束的测量方法、装置及终端
CN112491454B (zh) * 2020-11-27 2023-05-23 惠州Tcl移动通信有限公司 通信恢复方法、装置、终端设备及存储介质

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