WO2020001577A1 - Procédé et dispositif de communication pour émettre et recevoir des informations d'état de canal - Google Patents

Procédé et dispositif de communication pour émettre et recevoir des informations d'état de canal Download PDF

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Publication number
WO2020001577A1
WO2020001577A1 PCT/CN2019/093497 CN2019093497W WO2020001577A1 WO 2020001577 A1 WO2020001577 A1 WO 2020001577A1 CN 2019093497 W CN2019093497 W CN 2019093497W WO 2020001577 A1 WO2020001577 A1 WO 2020001577A1
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Prior art keywords
csi
reference signal
measurement reports
measurement
reported
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PCT/CN2019/093497
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English (en)
Chinese (zh)
Inventor
施弘哲
金黄平
毕晓艳
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华为技术有限公司
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Publication of WO2020001577A1 publication Critical patent/WO2020001577A1/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
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to the field of wireless communication, and more particularly, to a method and a communication device for transmitting and receiving channel state information.
  • the sender and receiver can obtain the gain through beamforming.
  • the transmitting end and the receiving end can obtain the pairing relationship between the transmitting beam and the receiving beam through beam training.
  • the receiving end can report a part of the reference signal resources with a larger reference signal receiving power to the transmitting end, so that the transmitting end can transmit data or information. Use the beam pairing relationship with better channel quality to send and receive signals.
  • network devices want to be able to obtain more information about beam pairing in order to perform more reasonably Beam management for greater gain in beamforming.
  • the present application provides a method and a communication device for transmitting and receiving channel state information, so as to obtain more correspondences between transmitting beams and receiving beams, so as to perform beam management more reasonably, and thereby obtain a beam forming gain to a greater extent. .
  • a method for sending channel state information includes: generating one or more CSI, each CSI includes one or more groups of measurement reports, each group of measurement reports is obtained based on a reference signal received by a spatial receiving filter, and is included in a total group of the measurement reports; When the number is multiple groups, multiple spatial receiving filters corresponding to each group of measurement reports are different from each other; and the one or more CSIs are sent.
  • the method of the first aspect may be executed by a terminal device, or may be executed by a chip configured in the terminal device, which is not limited in this application.
  • a method for receiving CSI includes: receiving one or more CSI, each CSI includes one or more groups of measurement reports, each group of measurement reports is obtained based on a reference signal measurement received by a spatial receiving filter, and each group of measurement reports corresponds to a plurality of The spatial receiving filters are different from each other; according to the one or more CSIs, it is determined that each group of measurement reports corresponds to a spatial receiving filter, and when multiple groups of measurement reports are received, the space corresponding to each group of measurement reports Receive filters are different from each other.
  • the method in the second aspect may be executed by a network device, or may be executed by a chip configured in the network device, which is not limited in this application.
  • a spatial transmission filter can be understood as a transmission beam.
  • the terminal device can perform channel measurement and reporting based on the reference signal received by each receiving beam, so that the network device can obtain more information about the pairing relationship between the transmitting beam and the receiving beam.
  • the network device can perform beam management more reasonably according to the beam pairing relationship, thereby obtaining a gain of beamforming to a greater extent.
  • the network device can select the transmission beams corresponding to different reception beams to communicate with different terminal devices according to the pairing relationship between the transmission beams and the reception beams, so that interference between multiple users can be avoided to the greatest extent, that is, the interference resistance is improved. On the whole, it helps to improve system performance.
  • each group of measurement reports may include at least one or more of the following: identification of at least one reference signal resource, and at least one reference signal reception power (RSRP) information.
  • RSRP reference signal reception power
  • the reference signal resource may be used to configure transmission attributes of the reference signal.
  • Each reference signal resource may correspond to one or more reference signals, and the one or more reference signals may be transmitted on the same time-frequency resource.
  • the reference signal received power information is used to indicate the received power of the reference signal. For example, it can be reported in an absolute value or in a differential manner. This application does not limit this.
  • the method further includes: receiving first indication information, where the first indication information is used to indicate a first reporting manner, and the first reporting manner is based on spatial reception filtering Group report.
  • the method further includes: sending the first indication information, the first indication information is used to indicate the first reporting mode, and the first reporting mode is based on Group report of the spatial receive filter.
  • the terminal device may perform channel measurement and reporting based on the received first instruction information based on the reference signal received by each spatial receiving filter, so as to report the measurement reports corresponding to one or more spatial receiving filters to the network device, so that The correspondence between the receiving beam and the transmitting beam is obtained by the network device.
  • the first indication information is carried in a CSI report configuration (CSI report setting) of a radio resource control (RRC) message, or,
  • the first indication information is carried in a packet reporting parameter configured by the CSI reporting.
  • the first indication information is carried in one or more of the following: an RRC message, a media access control (MAC) control element ( control element (CE) and downlink control information (DCI).
  • RRC message a media access control (MAC) control element ( control element (CE)
  • CE control element
  • DCI downlink control information
  • first indication information listed above are merely examples, and should not constitute any limitation to this application.
  • the first indication information may also be carried through other signaling, and this application does not do this. limited.
  • the method further includes: receiving second instruction information, where the second instruction information is used to indicate one or more of the following parameters:
  • Parameter 1 Number of measurement report groups reported by each CSI
  • Parameter 3 The number of CSIs when a measurement report is reported through multiple CSIs.
  • the method further includes: sending second instruction information, where the second instruction information is used to indicate one or more of the following parameters:
  • Parameter 1 Number of measurement report groups reported by each CSI
  • Parameter 3 The number of CSIs when a measurement report is reported through multiple CSIs.
  • the terminal device can report the CSI to the network device in the following four ways:
  • Method 1 Report a CSI, where the CSI includes a set of measurement reports;
  • Method 2 Report a CSI, which includes multiple sets of measurement reports;
  • Method 3 Report multiple CSI, each CSI includes a set of measurement reports;
  • Manner 4 Report multiple CSIs. Each CSI includes multiple sets of measurement reports.
  • the terminal device When the terminal device adopts the first or second method, it can report CSI to the network device according to parameter 1. When the terminal device adopts the third method, it can report CSI to the network device according to parameter 2 or parameter 3. When the terminal device adopts the fourth method, it can report according to the parameter 1. Any two of parameters 2 and 3 report CSI to the network device.
  • the network device can obtain a measurement report obtained based on the measurement of multiple received beams, that is, it can obtain the correspondence between multiple received beams and transmitted beams. , Can improve the robustness of the beam pairing relationship, is conducive to improving the robustness of the communication system, and is also conducive to improving the transmission efficiency and user experience.
  • parameters 1, 2, and 3 listed above may be indicated by a network device, or may be defined in advance, such as a protocol definition, which is not limited in this application.
  • the method further includes: sending second instruction information, where the second instruction information is used to indicate one or more of the following:
  • Send capability information which is used to indicate one or more of the following parameters:
  • Parameter i the number of spatial receiving filters
  • Parameter ii the maximum number of groups of measurement reports reported by each CSI
  • Parameter iii the maximum value of the total number of groups of measurement reports reported by multiple CSIs.
  • Parameter iv the maximum number of CSIs when reporting measurement reports through multiple CSIs.
  • the method further includes: receiving second instruction information, where the second instruction information is used to indicate one or more of the following:
  • Send capability information which is used to indicate one or more of the following parameters:
  • Parameter i the number of spatial receiving filters
  • Parameter ii the maximum number of groups of measurement reports reported by each CSI
  • Parameter iii the maximum value of the total number of groups of measurement reports reported by multiple CSIs.
  • Parameter iv the maximum number of CSIs when reporting measurement reports through multiple CSIs.
  • the network device may determine the parameters 1 to 3 listed above according to the capability information reported by the terminal device. In other words, when the above parameters 1 to 3 are indicated to the terminal device by the network device, the above parameters 1 to 3 may be determined according to the capabilities of the terminal device.
  • each group of measurement reports further includes a group identifier, and each group identifier corresponds to a spatial receiving filter.
  • the network device By carrying the group identifier in the measurement report, it is convenient for the network device to understand the correspondence between each group of measurement reports and the receiving beam, and it is also convenient to understand the correspondence between the transmitting beam and the receiving beam. Perform beam management in order to obtain the gain of beamforming to a greater extent, which is conducive to improving system performance.
  • the correspondence relationship of the group identifier in the spatial receiving filter does not change within a predetermined period.
  • the predetermined period is any of the following:
  • the time interval between two CSI reports the two CSI reports satisfy: reporting under the same CSI reporting configuration, or reporting under the same CSI reporting configuration with the same time domain behavior parameter;
  • the time interval between two reference signal transmissions, the two reference signal transmissions satisfy: transmission based on the same reference signal resource configuration, or transmission based on the same reference signal resource set configuration, or transmission based on the same reference signal resource configuration, Or, based on the reference signal resource configuration transmission with the same time domain behavior parameter;
  • One CSI report configures the time interval from enabling to releasing
  • a specified length after a CSI report configuration is enabled
  • a specified length after a CSI resource configuration is enabled.
  • predetermined time period may also be predetermined by a network device. This application does not limit this.
  • the method further includes: receiving fourth instruction information, where the fourth instruction information is used to indicate a start time and a length of the predetermined period.
  • the method further includes: sending fourth instruction information, where the fourth instruction information is used to indicate a start time and a length of the predetermined period.
  • the network device may further indicate the start time and length of the predetermined period to the terminal device. It should be understood that the network device may also indicate the start time and end time, or the end time and length of the predetermined period to the terminal device.
  • the terminal device knows any two items of the start time, length, and end time, it can calculate the other one. Therefore, when the network device indicates the start time and length of the predetermined period to the terminal device through the third instruction information And any of the two items shall fall within the scope of protection of this application.
  • the predetermined time period may be indicated by the network device to the terminal device, or may be predefined, such as a protocol definition, which is not limited in this application.
  • the method further includes: receiving third indication information, where the third indication information is used to indicate multiple reference signal resources, and the multiple reference signal resources are composed of at least two The above measurement report is determined.
  • the method further includes: sending third indication information, where the third indication information is used to indicate multiple reference signal resources, and the multiple reference signal resources are composed of at least two The above measurement report is determined.
  • the multiple reference signal resources indicated by the third indication information may be used for beam diversity quality monitoring.
  • the network device can configure the reference signal resources corresponding to multiple receiving beams for the terminal device based on multiple sets of measurement reports reported by the terminal device, so that the terminal device can perform beam diversity quality monitoring based on the multiple receiving beams. Therefore, when the terminal equipment is tilted or turned over, which causes the reception quality of some of the receiving beams to decrease, other receiving beams can be used to evaluate the quality of the wireless link. Thereby, frequent failure recovery from entering the beam can be avoided, which is beneficial to improving the robustness of the beam pairing relationship, thereby improving the robustness of the transmission system, and improving the user experience.
  • the multiple reference signal resources indicated by the third indication information correspond to the multiple spatial receiving filters on a one-to-one basis.
  • each reference signal resource corresponds to a spatial receiving filter.
  • the multiple reference signal resources indicated by the third indication information include a first resource group and a second resource group, where only the first resource group
  • the measurement result of the reference signal is included in the statistics of the number of failed beams.
  • the number of multiple reference signal resources indicated by the third indication information may be I (I> 0 and I is an integer), and the I reference signal resources may be equal to J (I> J> 0 and J is an integer).
  • Space receiving filters may be included in The second resource group.
  • L L ⁇ J> 0 and L is an integer reference signal resources
  • the first resource group may include I-L reference signal resources.
  • the L reference signal resources in the second resource group may correspond to J spatial receiving filters
  • the I-L reference signal resources in the first resource group may correspond to at least one of the J spatial receiving filters.
  • the method further includes: receiving fifth indication information, where the fifth indication information is used to indicate multiple reference signal resources in the second resource group.
  • the method further includes: sending fifth indication information, where the fifth indication information is used to indicate multiple reference signal resources in the second resource group.
  • the fifth indication information may be used to indicate the number of multiple reference signal resources in the second resource group, or may be used to indicate the identifiers or indexes of multiple reference signal resources in the second resource group. This application does not limit this.
  • Indicating multiple reference signal resources in the second resource group to the terminal device through the network device is convenient for the terminal device to avoid counting multiple reference signal resources in the second resource group into the number of beam failure times when performing beam failure monitoring.
  • a method for receiving a reference signal includes: receiving third indication information, where the third indication information is used to indicate multiple reference signal resources, where the multiple reference signal resources are determined by at least two groups of the above-mentioned measurement reports.
  • the method of the third aspect may be executed by a terminal device, or may be executed by a chip configured in the terminal device, which is not limited in this application.
  • a method for transmitting a reference signal includes: sending third indication information, where the third indication information is used to indicate multiple reference signal resources, and the multiple reference signal resources are determined by at least two groups of the foregoing measurement reports.
  • the method in the fourth aspect may be executed by a network device, or may be executed by a chip configured in the network device, which is not limited in this application.
  • the multiple reference signal resources indicated by the third indication information may be used for beam diversity quality monitoring.
  • the network device may configure the terminal device with reference signal resources corresponding to multiple received beams based on the multiple sets of measurement reports reported by the terminal device, so that the terminal device performs beam diversity quality monitoring based on the multiple received beams.
  • the multiple reference signal resources indicated by the third indication information correspond to the multiple spatial receiving filters on a one-to-one basis.
  • each reference signal resource corresponds to a spatial receiving filter.
  • the multiple reference signal resources indicated by the third indication information include a first resource group and a second resource group, where only the first resource group
  • the measurement result of the reference signal is included in the statistics of the number of failed beams.
  • the number of multiple reference signal resources indicated by the third indication information may be I (I> 0 and I is an integer), and the I reference signal resources may be equal to J (I> J> 0 and J is an integer).
  • Space receiving filters may be included in The second resource group.
  • L L ⁇ J> 0 and L is an integer reference signal resources
  • the first resource group may include I-L reference signal resources.
  • the L reference signal resources in the second resource group may correspond to J spatial receiving filters
  • the I-L reference signal resources in the first resource group may correspond to at least one of the J spatial receiving filters.
  • the method further includes: receiving fifth indication information, where the fifth indication information is used to indicate multiple reference signal resources in the second resource group.
  • the method further includes: sending fifth indication information, where the fifth indication information is used to indicate multiple reference signal resources in the second resource group.
  • the fifth indication information may be used to indicate the number of multiple reference signal resources in the second resource group, or may be used to indicate the identifiers or indexes of multiple reference signal resources in the second resource group. This application does not limit this.
  • Indicating multiple reference signal resources in the second resource group to the terminal device through the network device is convenient for the terminal device to avoid counting multiple reference signal resources in the second resource group into the number of beam failure times when performing beam failure monitoring.
  • a method for transmitting CSI includes: generating CSI, where the CSI includes one or more sets of measurement information, each set of measurement information is obtained based on a plurality of reference signals that can be received simultaneously, and each set of measurement information includes at least a first indication bit, the The first indication bit is used to indicate the number of spatial receiving filters that receive the multiple reference signals; and the CSI is transmitted.
  • the method of the fifth aspect may be executed by a terminal device, or may be executed by a chip configured in the terminal device, which is not limited in this application.
  • a method for receiving CSI includes: receiving CSI, where the CSI includes one or more sets of measurement information, each set of measurement information is measured based on a plurality of reference signals that can be received simultaneously, and each set of measurement information includes at least a first indicator bit, the The first indication bit is used to indicate the number of spatial receiving filters that receive the multiple reference signals; it is determined whether the multiple reference signals indicated by each set of measurement information are received by the same spatial receiving filter according to the CSI.
  • the method of the sixth aspect may be executed by a network device, or may be executed by a chip configured in the network device, which is not limited in this application.
  • the terminal device may carry an indicator bit for indicating the number of spatial receiving filters that receive the multiple reference signals when reporting CSI based on multiple reference signals that can be received simultaneously, so that the network device can obtain more Information about the correspondence between the reference signal resource and the spatial receiving filter, that is, more information about the pairing relationship between the receiving beam and the transmitting beam can be obtained.
  • the first indicator bit may be used to indicate whether the multiple reference signals are received by the same spatial receiving filter.
  • the protocol can be defined in advance.
  • the measurement results of the multiple reference signals can be reported.
  • the multiple reference signals correspond to a spatial receiving filter.
  • a measurement result of one reference signal may be reported based on each spatial receiving filter.
  • the multiple reference signals correspond one-to-one with multiple spatial receiving filters.
  • the network device can determine the correspondence between the reference signal and the spatial receiving filter according to the measurement results of the first indicator bit and the received multiple reference signals, and can also determine the correspondence between the transmit beam and the receive beam. relationship.
  • the network device may obtain a correspondence between a plurality of transmitting beams and a receiving beam. Therefore, when the TCI state list corresponding to a certain receiving beam is invalid due to the tilting or overturning of the terminal device, it is also possible to switch to other receiving beams with better link quality, which can avoid frequently triggering the beam failure recovery process. Therefore, the robustness of the beam pairing relationship is improved, which is conducive to improving the robustness of the transmission system, improving the transmission efficiency, and at the same time improving the user experience.
  • each set of measurement information includes the above-mentioned first indication bit and multiple measurement results, where each measurement result may include one or more of the following: an identification of a reference signal resource and reference signal received power information.
  • the reference signal resource may be used to configure transmission attributes of the reference signal.
  • Each reference signal resource may correspond to one or more reference signals, and the one or more reference signals may be transmitted on the same time-frequency resource.
  • the reference signal received power information is used to indicate the received power of the reference signal. For example, it can be reported in an absolute value or in a differential manner. This application does not limit this.
  • the method further includes: receiving sixth instruction information, where the sixth instruction information is used to indicate a second reporting mode, and the second reporting mode is based on the simultaneous reporting Report the received reference signal in packets.
  • the method further includes: sending sixth instruction information, where the sixth instruction information is used to indicate a second reporting method, and the second reporting method is based on Reported by packets of reference signals that can be received simultaneously.
  • the terminal device may perform channel measurement and reporting based on the multiple reference signals received at the same time according to the received sixth instruction information, and report the number of spatial reception filters that simultaneously receive the multiple reference signals to the network device so that The correspondence between the receiving beam and the transmitting beam is obtained by the network device.
  • the sixth indication information is carried in a CSI reporting configuration of the RRC message, or the sixth indication information is carried in a packet reporting parameter configured in the CSI reporting.
  • the sixth indication information is carried in one or more of the following: RRC message, MAC CE, and DCI.
  • a communication device including each of the methods for performing the method in the first aspect, the third aspect, or the fifth aspect, and any possible implementation manner of the first aspect, the third aspect, or the fifth aspect. Module or unit.
  • a communication device including a processor.
  • the processor is coupled to the memory and can be used to execute instructions in the memory to implement the method in any one of the possible implementation manners of the first aspect, the third aspect, or the fifth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver, or an input / output interface.
  • the communication device is a chip configured in a terminal device.
  • the communication interface may be an input / output interface.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • a communication device including each of the methods for performing the method in the second aspect, the fourth aspect, or the sixth aspect, and any possible implementation manner of the second aspect, the fourth aspect, or the sixth aspect. Module or unit.
  • a communication device including a processor.
  • the processor is coupled to the memory, and can be used to execute instructions in the memory to implement the method in any one of the foregoing possible implementation manners of the second aspect, the fourth aspect, or the sixth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input / output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface may be an input / output interface.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • 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 sixth aspect and any possible implementation manner of the first aspect to the sixth 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 and transmitted by a 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 processor and a memory.
  • the processor is used to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to execute the first aspect to the sixth aspect and any possible implementation manner of the first aspect to the sixth aspect. Methods.
  • 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
  • sending instruction information may be a process of outputting instruction information from a processor
  • receiving capability information may be a process of receiving input capability information by a processor.
  • the processed output data can be output to the transmitter, and the input data received by the processor can come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the above twelfth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in a memory.
  • the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • 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 sixth aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • 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), which when executed on a computer, causes the computer to execute the first aspect to The sixth aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer program also referred to as code, or instructions
  • a communication system including the foregoing network device and terminal device.
  • FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for sending and receiving CSI according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for sending and receiving a reference signal according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for sending and receiving CSI according to another embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Global Interoperability for Microwave Access
  • 5G 5G
  • 5G new radio access technology
  • FIG. 1 shows a schematic diagram of a communication system suitable for a method and apparatus for sending and receiving according to embodiments of the present application.
  • the communication system 100 may include at least one network device, such as network device 110 shown in FIG. 1; the communication system 100 may further include at least one terminal device, such as terminal device 120 shown in FIG. 1.
  • the network device 110 and the terminal device 120 can communicate through a wireless link.
  • Each communication device, such as the network device 110 or the terminal device 120 may be configured with multiple antennas, and the multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain.
  • a transmitter chain and a receiver chain.
  • Those skilled in the art can understand that they can include multiple components related to signal transmission and reception (such as a processor, a modulator, and a multiplexer). , Demodulator, demultiplexer or antenna, etc.). Therefore, the network device 110 and the terminal device 120 can communicate through a multi-antenna technology.
  • the network device in the wireless communication system may be any device having a wireless transceiver function.
  • the device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC) , Base Transceiver Station (BTS), Home Base Station (e.g., Home NodeB, or Home Node B, HNB), Base Band Unit (BBU), Wireless Fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • eNB evolved Node B
  • RNC radio network controller
  • NB node B
  • BSC Base Station Controller
  • BBU Base Transceiver Station
  • BBU Base Band Unit
  • WIFI Wireless Fidelity
  • AP Wireless Fidelity
  • AP Wireless Fidelity
  • AP wireless relay node
  • TP transmission point
  • TRP transmission and reception point
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio frequency unit (radio unit, RU).
  • CU implements some functions of gNB and DU implements some functions of gNB.
  • CU implements radio resource control (RRC), packet data convergence layer protocol (PDCP) layer functions, and DU implements wireless chain.
  • RRC radio resource control
  • PDCP packet data convergence layer protocol
  • DU implements wireless chain.
  • RLC radio control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in an access network (RAN), or the CU can be divided into network equipment in a core network (CN), which is not limited in this application.
  • RAN access network
  • CN core network
  • the terminal equipment in the wireless communication system may also be referred to as user equipment (UE), 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.
  • the terminal device in the embodiments of the present application may be a mobile phone, a tablet, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, or an augmented reality (AR) terminal.
  • Equipment wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( wireless terminals in transportation, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the embodiment of the present application does not limit the application scenario.
  • two communication devices with communication connections may obtain gain through beamforing, respectively.
  • the transmitting end such as the network device 110
  • the receiving end such as the terminal device 120
  • 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.
  • beam and spatial filter are used alternately, for example, “transmit beam” and “space transmit filter” are used alternately, and “receive beam” and “spatial receive filter” “The device” is used interchangeably. When the difference is not emphasized, the meaning to be expressed is the same.
  • 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 through CSI.
  • 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
  • Reference signals can be used for channel measurement, channel estimation, or beam quality monitoring.
  • the reference signal resource can be used to configure the transmission attributes of the reference signal, such as the position of the time-frequency resource, the port mapping relationship, the power factor, and the scrambling code. For details, refer to the prior art.
  • the transmitting device may send the reference signal based on the reference signal resource, and the receiving device may receive the reference signal based on the reference signal resource.
  • the channel measurement involved in this application also includes beam measurement, that is, obtaining beam quality information by measuring a reference signal, and parameters for measuring beam quality include RSRP, but are not limited thereto.
  • the beam quality can also be obtained through reference signal reception quality (RSRQ), signal-noise ratio (SNR), signal to interference plus noise ratio (SINR) Noise ratio) and other parameters.
  • RSRQ reference signal reception quality
  • SNR signal-noise ratio
  • SINR signal to interference plus noise ratio
  • the channel measurement involved may be regarded as a beam measurement without a special description.
  • the beam quality monitoring involved in this application monitors beam-based link quality information.
  • Parameters used to evaluate wireless link quality include hypothetical block error rate (hyperthetical block error ratio, hypothetical BLER), but are not limited thereto.
  • link quality can also be measured by parameters such as RSRP, RSRQ, SNR, SINR.
  • the reference signals involved in the embodiments of the present application may include, for example, a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), and a sounding reference signal (sounding reference signal).
  • CSI-RS channel state information reference signal
  • SSB synchronization signal block
  • sounding reference signal sounding reference signal
  • SRS sounding reference signal
  • the reference signal resources may include CSI-RS resources (CSI-RS resources), SSB resources, and SRS resources (SRS resources).
  • the above SSB can also be called synchronization signal / physical broadcast channel block (SS / PBCH block), and the corresponding SSB resource can also be called synchronization signal / physical broadcast channel block resource.
  • (SS / PBCH block source) can be referred to as SSB source for short.
  • SSB can also refer to SSB resources.
  • the SSB can be regarded as an SS / PBCH block and the SSB resource can be regarded as an SS / PBCH block resource without a special description.
  • each reference signal resource may correspond to an identifier of a reference signal resource, such as CSI-RS resource identifier (CRI), SSB resource identifier (SSBRI) SRS resource index (SRS resource index).
  • CRI CSI-RS resource identifier
  • SSBRI SSB resource identifier
  • SRS resource index SRS resource index
  • the SSB resource identifier may also be referred to as the SSB identifier (SSB index).
  • a network device may send a CSI resource configuration (CSI resource configuration) to a terminal device through an RRC message, and each CSI resource configuration may include S (S ⁇ 1 and S is an integer) CSI-RS resources Sets (CSI-RS resources), each CSI-RS resources set may include K (K ⁇ 1, and K is an integer) NZP CSI-RS resources (NZP CSI-RS resources).
  • the terminal device can receive the CSI-RS on the K NZP CSI-RS resources indicated by the network device.
  • the terminal device when it accesses the cell, it can obtain the resource configuration information of the SSB.
  • the network device may also indicate the identity of one or more SSB resources through a special CSI-RS resource set.
  • the SSB resource may be, for example, a channel state information synchronization signal block resource set (CSI-SSB-Resource Set).
  • CSI-SSB-Resource Set channel state information synchronization signal block resource set
  • the SSB transmitted based on the one or more SSB resources may be used for channel measurement.
  • the terminal device may receive the SSB according to the SSB resource indicated by the special CSI-RS resource set, and perform channel measurement.
  • the network device may further indicate J (K ⁇ J ⁇ 1, and J is an integer) NZP CSI-RS resources currently available in K NZP CSI-RS resources through DCI.
  • Time domain behavior parameters In the reference signal resource configuration and the CSI reporting configuration, different time domain behavior parameters can be used to indicate different time domain behaviors.
  • the time domain behavior parameter of the reference signal resource configuration may be used to indicate the time domain behavior of the terminal device receiving the reference signal; the time domain behavior parameter configured by the CSI report may be used to indicate the time domain behavior of the terminal device to report the CSI.
  • the time domain behavior may include, for example, periodic, semi-persistent, and aperiodic.
  • Antenna port (referred to as port). Transmitting antennas recognized by the receiving end equipment, or transmitting antennas that are spatially distinguishable.
  • One antenna port can be configured for each virtual antenna, each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal port.
  • Quasi-co-location The signals corresponding to the antenna ports with a QCL relationship have the same parameters, or the parameters of one antenna port can be used to determine another antenna with a QCL relationship to the antenna port.
  • the parameters of the antenna ports, or the two antenna ports have the same parameters, or the parameter difference between the two antenna ports is less than a certain threshold.
  • the parameters may include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, average Gain, spatial Rx parameters.
  • the space receiving parameters may include one or more of the following: angle of arrival (AOA), average AOA, AOA extension, angle of departure (AOD), average departure angle AOD, AOD extension, reception Antenna spatial correlation parameters, transmitting antenna spatial correlation parameters, transmitting beams, receiving beams, and resource identifiers.
  • AOA angle of arrival
  • AOA extension angle of departure
  • AOD angle of departure
  • AOD extension angle of departure
  • reception Antenna spatial correlation parameters transmitting antenna spatial correlation parameters, transmitting beams, receiving beams, and resource identifiers.
  • the above-mentioned angle may be a decomposition value of different dimensions, or a combination of decomposition values of different dimensions.
  • the antenna ports are antenna ports having different antenna port numbers, and / or, antenna ports having the same antenna port number for transmitting or receiving information at different times and / or frequencies and / or code domain resources, and / or, have different
  • the antenna port number is an antenna port for transmitting or receiving information in different time and / or frequency and / or code domain resources.
  • the resource identifier may include: a CSI-RS resource identifier, or an SRS resource identifier, or an SSB resource identifier, or a resource identifier of a preamble sequence transmitted on a physical random access channel (PRACH), or a demodulation reference signal ( demodulation (reference signal, DMRS) resource identifier, used to indicate the beam on the resource.
  • CSI-RS resource identifier or an SRS resource identifier, or an SSB resource identifier, or a resource identifier of a preamble sequence transmitted on a physical random access channel (PRACH), or a demodulation reference signal ( demodulation (reference signal, DMRS) resource identifier, used to indicate the beam on the resource.
  • PRACH physical random access channel
  • DMRS demodulation reference signal
  • Type A Doppler frequency shift, Doppler spread, average delay, delay spread;
  • Type B Doppler frequency shift and Doppler spread
  • Type C Doppler shift, average delay
  • Type D space receiving parameters.
  • the QCL involved in the embodiment of the present application is a QCL of type D.
  • the QCL can be understood as a QCL of type D, that is, a QCL defined based on a spatial receiving parameter.
  • the QCL relationship refers to the QCL relationship of type D: the QCL relationship between the port of the downlink signal and the port of the downlink signal, or the port of the uplink signal and the port of the uplink signal
  • the two signals can have the same AOA or AOD , Is used to indicate that they have the same receive or transmit beam.
  • the AOA and AOD of the two signals have a corresponding relationship, or the AOD and AOA of the two signals have a corresponding relationship, that is, a beam can be used. Reciprocity, determining an uplink transmission beam according to a downlink reception beam, or determining a downlink reception beam according to an uplink transmission beam.
  • a signal transmitted on a port with a QCL relationship may also have a corresponding beam, and the corresponding beam includes at least one of the following: the same receiving beam, the same transmitting beam, and the transmitting beam corresponding to the receiving beam (corresponding to a scenario with reciprocity) ), The receiving beam corresponding to the transmitting beam (corresponding to a scene with reciprocity).
  • Signals transmitted on ports with a QCL relationship can also be understood as receiving or sending signals using the same spatial filter.
  • 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.
  • a signal transmitted on a port with a QCL relationship can also be understood as having a corresponding beam pair connection (BPL).
  • the corresponding BPL includes at least one of the following: the same downlink BPL, the same uplink BPL, and the downlink BPL.
  • the uplink BPL corresponds to the downlink BPL corresponding to the uplink BPL.
  • the spatial reception parameter (ie, QCL of type D) can be understood as a parameter for indicating the direction information of the received beam.
  • Transmission configuration indicator can be used to indicate the QCL relationship between two reference signals.
  • Network devices can configure TCI state (TCI state) lists for terminal devices through high-level signaling (such as radio resource control (RRC) messages), and can use high-level signaling (such as MAC CE) or physical layer signaling ( For example, DCI activates or indicates one or more TCI states.
  • RRC radio resource control
  • MAC CE physical layer signaling
  • DCI activates or indicates one or more TCI states.
  • the network device may configure a TCI status list for the terminal device through an RRC message.
  • the terminal device receives a physical downlink control channel (physical downlink control channel, PDCCH) from the network device.
  • PDCCH physical downlink control channel
  • one or more of the control channel TCI status list may be activated according to the instruction of the MAC CE, where the control channel TCI status list is a subset of the above TCI status list; the terminal device may obtain DCI from the PDCCH, and then according to the DCI Instructs selection of one or more TCI states in a data channel TCI state list, where the data channel TCI state list is a subset of the above TCI state list and is indicated to the terminal device through MAC-CE signaling.
  • the configuration information of a TCI state may include an identifier of one or two reference signal resources, and an associated QCL type.
  • the terminal device can demodulate the PDCCH or PDSCH according to the indication of the TCI state.
  • the terminal device can know which transmit beam is used by the network device to transmit the signal, and then can determine which receive beam to use to receive the signal according to the beam pairing relationship determined by the channel measurement.
  • a network device can configure a periodic reference signal resource set q 0 for a terminal device through a high-level parameter beam failure monitoring reference signal resource configuration (Beam-Failure-Detection-RS-ResourceConfig).
  • the reference signal resource set q 0 includes a set of reference signal resources.
  • the terminal device may receive a reference signal based on the reference signal resource set q 0 , and evaluate a beam-based radio link quality based on the received reference signal. It can be understood that the quality of the wireless link is based on the quality of the wireless link established by the transmitting beam and / or the receiving beam.
  • beam failure recovery BFR
  • This kind of beam-based wireless link quality monitoring can be referred to simply as beam failure monitoring.
  • the network device may configure a reference signal resource set q 1 for the terminal device through a high-level parameter candidate beam reference signal list (Candidate-Beam-RS-List), and the reference signal resource set q 1 may also include a set of reference signal resources. .
  • the reference signal resources in the reference signal resource set q 1 can be used as candidate reference signal resources for beam recovery.
  • the transmitting end may be a network device, such as the network device 110 shown in FIG. 1; the receiving end may be a terminal device, such as the terminal device 120 shown in FIG. 1.
  • the terminal device 120 may perform channel measurement based on the reference signal received by each spatial receiving filter, and report the measurement result to the network device 110 in groups.
  • the terminal device 120 may classify the results measured based on the same spatial receiving filter into a set of measurement reports.
  • the spatial receiving filters corresponding to each set of measurement reports are different from each other. Therefore, the measurement report and the spatial receiving filter in the embodiments of the present application have a one-to-one correspondence relationship.
  • the network device 110 may, based on one or more measurement reports reported by the terminal device 120, perceive the correspondence between the spatial reception filter and the reference signal resource, that is, perceive the pairing relationship between one or more receive beams and one or more transmit beams. .
  • the network device 110 can perform beam management based on more pairing relationships between the receiving beam and the transmitting beam. For example, the network device 110 may group the reference signal resource identifiers reported by the terminal device 120 according to the measurement report and store them locally. When receiving the reference signal from the network device 110, the terminal device 120 may also save the correspondence between the reference signal resource identifier corresponding to the received reference signal and the receiving beam used to receive the reference signal locally. The network device 110 may configure and notify the terminal device 120 of the identifier of the reference signal resource in the form of a TCI status list, so as to select a transmission beam corresponding to the identifier of a reference signal resource stored in the TCI status list in a subsequent communication process. Send the signal, and activate the MAC or CE or indicate the TCI status corresponding to the selected transmission beam through the DCI to help the terminal device 120 determine and select a suitable reception beam to receive the signal.
  • the network device 110 can obtain the terminal device 120 The information of the receiving beam with better quality is received, and then the network device 110 may directly switch to the transmitting beam with better quality corresponding to the receiving beam. At the same time, the terminal device 120 may also switch to the receiving beam to receive signals, which can avoid frequently triggering a beam failure recovery process. Therefore, the robustness of the beam pairing relationship can be improved, which can also improve the robustness of the communication system, which is beneficial to improving the transmission efficiency and at the same time it is beneficial to improving the user experience.
  • the network device 110 groups the reference signal resource identifiers # 1- # 4 reported by the terminal device 120 according to the measurement report and stores them locally. It is assumed that the measurement report is divided into groups # 1 and # 2, which respectively correspond to the reception of the terminal device 120. Beam # 1 and receiving beam # 2, where reference signal resource identifiers # 1 and # 2 correspond to group # 1, and reference signal resource identifiers # 3 and # 4 correspond to group # 2. On the premise that the network device 110 uses the transmission beam corresponding to the reference signal resource identifier # 4 to serve another terminal device, the network device 110 can preferentially schedule the transmission beam corresponding to the reference signal resource identifier # 1 or # 2 to be the current terminal. Device 120 services.
  • the reference signal resource identifier # 1 or # 2 and the reference signal resource identifier # 4 belong to different measurement reports and correspond to different receiving beams of the current terminal device. Therefore, if the network device 110 selects the reference signal resource identifier # 1 or # 2, The transmission beam communicates with the terminal device 120, which can avoid the interference of the transmission beam serving another terminal device (such as the transmission beam corresponding to the reference signal resource identifier # 4) to the greatest extent.
  • the terminal device 110 cannot report the measurement report based on the spatial receiving filter, only the reference signal resource identifier and the corresponding reference signal received power are reported, and the network device 110 cannot sense the reference signal resource reported by the terminal device 120. Whether the transmitted reference signal is received and measured based on the same receiving beam, or is the network device 110 unable to sense whether the reference signal corresponding to the reference signal resource reported by the terminal device 120 is received by a receiving beam of the terminal device 120 or Received by multiple receive beams. The network device 110 may not be able to obtain more information about the pairing relationship between the transmitting beam and the receiving beam, so as to perform beam management reasonably.
  • the terminal device 120 may perform channel measurement based on a reference signal received by only one receiving beam (for example, described as receiving beam # 1), and report the measurement result to the network device 110. Thereafter, the network device 110 may transmit data or signaling with the terminal device 120 according to the identifier of the reference signal resource and the received power of the reference signal reported by the terminal device 120.
  • the terminal device 120 undergoes a small tilt or rotation, the quality of the received signal of the receiving beam # 1 may be deteriorated, and the identifiers of the previously reported reference signal resources are reported based on the measurement of the receiving beam # 1. of. This means that the TCI status list configured by the network device 110 is actually based on the receiving beam # 1 of the same terminal device 120.
  • this TCI status list can be considered to be all invalid. If it is still based on this TCI status list, the network device 110 selects the corresponding transmit beam to send the signal, and the terminal device 120 selects the receive beam # 1 to receive the signal according to the TCI, which may seriously degrade the link quality and may cause the system to frequently enter the beam Failure recovery (beam failure recovery) process. Therefore, the selection of the receiving beam depends too much on the implementation of the terminal device 120, which may cause the beam pairing relationship to be not robust, which is not conducive to improving the transmission efficiency and the user experience is not good.
  • the terminal device 120 may also perform channel measurement based on reference signals received by multiple receiving beams (for example, denoted as receiving beam # 1 and receiving beam # 2), and report the measurement results to the network.
  • the network device 110 may transmit data or signaling with the terminal device 120 according to the identifier of the reference signal resource and the received power of the reference signal reported by the terminal device 120.
  • the network device 110 does not know that the measurement result reported by the terminal device is obtained based on multiple received beam measurements. If the terminal device 120 experiences a small tilt or rotation, the quality of the received signal may be deteriorated in the currently used receiving beam (for example, receiving beam # 1), and the network device 110 does not know which transmitting beam to switch to to send the signal.
  • the terminal device 120 includes multiple receiving beams, the measurement results and additional information previously reported through beam scanning cannot be fully utilized, the robustness of the transmission system cannot be improved, and the user experience is poor.
  • the network device 110 may send two different signals to the same terminal device 120 on the same OFDM symbol, for example, PDCCH and PDSCH. Since the terminal device 120 may not have two different receptions at the same time The ability of the beam to receive two signals, so the network device 110 may need to ensure that the two signals appearing on the same OFDM symbol have the same spatial receiving parameters, that is, the terminal device 120 can receive the two signals with the same receiving beam. However, if the terminal device 120 only reports the identifier of the reference signal resource to the network device 110, the network device 110 does not know whether the transmission beam corresponding to the multiple reference signal resources reported by the terminal device 120 corresponds to one reception beam of the terminal device.
  • the network device 110 can only select the same transmit beam to send the PDCCH and the PDSCH, so as to ensure that the terminal device 120 can receive using the same receive beam.
  • the PDCCH as a control signal may be suitable for using a half-power spot beam width (HPBW) larger beam to increase coverage in the angular domain and enhance robustness
  • PDSCH As a data signal, it may be suitable to use a smaller HPBW beam to improve the SNR or SINR during reception and enhance throughput. Therefore, if the PDCCH and PDSCH are transmitted simultaneously using the transmission beam of the data channel, the robustness of PDCCH detection may be reduced. If the PDCCH and PDSCH are simultaneously transmitted using the transmission beam of the control channel, the PDSCH error may increase and the throughput may decrease.
  • the network device 110 cannot know the pairing relationship between the transmitting beam and the receiving beam, it may not be able to perform beam management reasonably, which is not conducive to the robustness of the system and is not conducive to improving the system performance.
  • each group of measurement reports is measured based on the reference signal received by the same spatial receiving filter.
  • the network device 110 can perceive more pairing information of the transmitting beam and the receiving beam, so that the beam management can be performed more reasonably, which can increase the beamforming gain to a greater extent; at the same time, it is also beneficial to improve the robustness of the system It is conducive to improving transmission efficiency and improving user experience. On the whole, it helps to improve system performance.
  • the channel measurement or beam measurement in the embodiments of the present application may be based on the same bandwidth part (BWP) or the same carrier (component carrier, CC), or may be different BWP or CC.
  • BWP bandwidth part
  • CC component carrier
  • the CSI report described in the embodiment of the application may correspond to the same BSP or CC, or may correspond to different BWP or CC, which is not limited in this application.
  • the unit of "time” involved may be, for example, a slot or orthogonal frequency division multiplexing symbol, or may be seconds, milliseconds, or Microseconds, etc. This application does not limit this.
  • pre-acquisition may include indication or pre-definition by network device signaling, for example, protocol definition.
  • pre-defined can be achieved by pre-saving corresponding codes, tables, or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices), and this application does not make specific implementations thereof. limited.
  • "save" involved in the embodiments of the present application may refer to saving in one or more memories.
  • the one or more memories may be provided separately or integrated in an encoder or a decoder, a processor, or a communication device.
  • the one or more memories may also be partly provided separately and partly integrated in a decoder, a processor, or a communication device.
  • the type of the memory may be any form of storage medium, which is not limited in this application.
  • protocol in the embodiment of the present application may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and a related protocol applied in a future communication system, which is not limited in this application.
  • the technical solution of the present application can be applied to a wireless communication system, for example, the communication system 100 shown in FIG. 1.
  • a wireless communication connection relationship between two communication devices in a wireless communication system and one communication device of the two communication devices may correspond to the terminal device 120 shown in FIG. 1, for example, it may be as shown in FIG. 1.
  • the terminal device shown may also be a chip configured in the terminal device; the other communication device of the two communication devices may correspond to the network device 110 shown in FIG. 1, for example, it may be the device shown in FIG. 1.
  • the network device may also be a chip configured in the network device.
  • any terminal device in the wireless communication system or a chip configured in the terminal device can receive the reference signal and report the CSI based on the same method.
  • Any network device in the wireless communication system or configured in the network device All chips can send reference signals and receive CSI based on the same method. This application does not limit this.
  • FIG. 2 is a schematic flowchart of a method 200 for sending and receiving CSI, which is shown from the perspective of device interaction. As shown, the method 200 shown in FIG. 2 may include steps 210 to 290. The method 200 is described in detail below with reference to FIG. 2.
  • the terminal device In step 210, the terminal device generates one or more CSIs.
  • Each CSI includes one or more sets of measurement reports.
  • Each set of measurement reports is measured based on a reference signal received by a spatial receiving filter.
  • the spatial receiving filters corresponding to the measurement reports of each group are different from each other.
  • step 220 the terminal device sends the one or more CSIs.
  • the network device receives the one or more CSIs.
  • the network device determines, according to the one or more CSIs, that the spatial receiving filters corresponding to each set of measurement reports are different from each other.
  • the terminal device can perform measurement according to the reference signal received by each spatial receiving filter, and report the result obtained based on the measurement of each spatial receiving filter to the network device in the form of a measurement report.
  • Each group of measurement reports may correspond to a spatial receiving filter, or each group of measurement reports may correspond to a receiving beam.
  • the multiple measurement reports correspond one-to-one with multiple spatial reception filters, or in other words, the multiple measurement reports correspond one-to-one with multiple receive beams.
  • the network device receives the one or more CSIs described above, it can be determined that the spatial receiving filters corresponding to each set of measurement reports are different from each other.
  • the network device can perceive the correspondence between the reference signal resources corresponding to each group of measurement reports (for example, can include or be pre-appointed) and the spatial receiving filter.
  • the device can sense which several transmit beams correspond to the same receive beam.
  • the method 200 further includes step 240: the network device sends a reference signal, and the reference signal is used for channel measurement.
  • the terminal device receives a reference signal, which is used for channel measurement.
  • the reference signal may be a CSI-RS or an SSB, which is not limited in this application.
  • the network device may send the resource configuration information of the reference signal to the terminal device in advance through high-level signaling, such as the CSI resource configuration and SSB resource configuration information listed above.
  • the terminal device may determine the reference signal resource according to the resource configuration information of the reference signal sent by the network device. Therefore, the terminal device can receive the reference signal based on the reference signal resource.
  • the channel measurement may be understood as a beam measurement.
  • the network device can send the reference signal by means of beam scanning, and the terminal device can also receive the reference signal by means of beam scanning.
  • the reference signals sent by the network device through different transmit beams may be associated with different reference signal resources, and the reference signals received by the terminal device through different receive beams may also be associated with different reference signal resources. Therefore, by referring to the identification of the signal resource, different transmit beams or receive beams can be distinguished.
  • the network device includes 6 transmitting beams, which may be recorded as beams # 1 to # 6, respectively.
  • the terminal equipment includes a receiving beam.
  • the resource identifiers may be # 1 to # 6, respectively.
  • the six reference signal resources may be recorded as resources # 1 to # 6, respectively.
  • the network device can send a reference signal to the terminal device based on the resources # 1 to # 6, then the 6 reference signal resources correspond to the 6 transmission beams one by one, and the network device can send one or Multiple reference signals.
  • the network device may send one or more reference signals through the beam # 1 based on the resource # 1; the network device may send one or more reference signals through the beam # 2 based on the resource # 2; and so on, no longer enumerated here .
  • the resource identifiers may be resources # 1 to # 24, respectively.
  • the 24 reference signal resources may be recorded as resources # 1 to # 24, respectively.
  • the network device can send the reference signal to the terminal device through the resources # 1 to # 24, then every 6 reference signal resources of the 24 reference signal resources correspond to the 6 transmitting beams one by one, and the network device can recycle the 6
  • the transmit beam transmits a reference signal based on the 24 reference signal resources. For example, the network device may send one or more reference signals through beam # 1 based on resource # 1, and one or more reference signals through beam # 2 based on resource # 2, and so on, until the network device passes based on resource # 6.
  • Beam # 6 sends one or more reference signals; thereafter, the network device may send one or more reference signals through beam # 1 based on resource # 7, and one or more reference signals through beam # 2 based on resource # 8.
  • the network device can send one or more reference signals through beam # 1 based on resource # 13, and pass through based on resource # 14.
  • Beam # 2 sends one or more reference signals, and so on, until the network device sends one or more reference signals through beam # 6 based on resource # 18; thereafter, the network device can send through beam # 1 based on resource # 19.
  • One or more reference signals send one or more reference signals through beam # 2 based on resource # 20, and so on, until the network device sends one through beam # 6 based on resource # 24 Or multiple reference signals.
  • the terminal device can sequentially receive the reference signals sent by different transmitting beams of the network device based on different reference signal resources through the receiving beam.
  • the network device includes 6 transmitting beams, for example, which can be referred to as transmitting beams # 1 to # 6, and the terminal device includes 2 receiving beams, which can be referred to as receiving beams # 1 and # 2, respectively.
  • the resource identifiers may be # 1 to # 6, respectively.
  • the six reference signal resources may be recorded as resources # 1 to # 6, respectively.
  • the network device can send a reference signal to the terminal device based on the resources # 1 to # 6, then the 6 reference signal resources correspond to the 6 transmission beams one by one, and the network device can send one or Multiple reference signals.
  • the terminal device may first use one of the receiving beams to receive the reference signal based on the 6 reference signal resources, and then use the other receiving beam to receive the reference signal based on the 6 reference signal resources. Therefore, the network device can repeatedly transmit the reference signal based on the 6 reference signal resources through the 6 transmit beams, so that the 2 receive beams of the terminal device can receive the reference signal for measurement based on the 6 reference signal resources. .
  • the network device may send one or more reference signals through the transmitting beam # 1 based on the resource # 1, and the terminal device may receive the one or more reference signals through the receiving beam # 1 based on the resource # 1; Sending one or more reference signals through transmit beam # 2, the terminal device may receive the one or more reference signals through receive beam # 1 based on resource # 2; and so on, until the network device passes transmit beam # 6 based on resource # 6 Send one or more reference signals, and the terminal device receives the one or more reference signals through the receiving beam # 1 based on the resource # 6. Thereafter, the network device may send the reference signals through the transmitting beams # 1 to # 6 based on the resources # 1 to # 6 in turn, and the terminal device may receive the reference signals through the receiving beam # 2 based on the resources # 1 to # 6 in turn.
  • the terminal device can fix a certain receiving beam, poll the network device's transmitting beam, and use different transmitting beams to send reference signals.
  • the terminal device uses the above-mentioned fixed receiving beam to receive the different transmitting beams sent by the network device. Reference signal for channel measurement. After that, the terminal device can switch to another receiving beam and repeat the above steps.
  • Network equipment can fix a certain transmission beam. Terminal equipment uses different reception beams to receive reference signals from the same transmission beam of network equipment. Terminal equipment can perform channel measurement based on the reference signals received by different reception beams. After that, the network device can switch to another transmit beam and repeat the above steps.
  • the number of receiving beams included in the terminal device may be greater than or equal to the total number of groups of measurement reports reported through CSI.
  • the terminal device may include 4 receiving beams, but may only report 2 sets of measurement reports. The relationship between the receiving beam of the terminal device and the number of groups of reported measurement reports will be described in detail later, and a detailed description of this content is omitted for now.
  • the terminal device may generate and report a measurement report to the network device in any of the following ways:
  • Method 1 Report a CSI, where the CSI includes a set of measurement reports;
  • Method 2 Report a CSI, which includes multiple sets of measurement reports;
  • Method 3 Report multiple CSI, each CSI includes a set of measurement reports;
  • Manner 4 Report multiple CSIs. Each CSI includes multiple sets of measurement reports.
  • the terminal device can report a group of measurement reports to the network device, and can also report multiple groups of measurement reports to the network device. If the terminal device reports multiple sets of measurement reports to the network device, the multiple sets of measurement reports may be carried in one CSI or multiple CSIs. When the protocol reports the measurement report by any one of the above methods by default, the terminal device may generate and send the CSI based on the corresponding method.
  • the spatial receiving filters (or, in other words, the receiving beams) corresponding to the respective sets of measurement reports are different from each other. That is, among the multiple sets of measurement reports reported by the terminal device, the spatial receiving filters corresponding to any two sets of measurement reports are different.
  • the multiple CSIs are configured based on a same CSI report.
  • the multiple CSIs are configured based on multiple CSI reports.
  • the multiple CSI reporting configurations have the same time domain behavior parameters.
  • the multiple CSIs configured based on multiple CSI reports may all be periodic reports, semi-persistent reports, or aperiodic reports.
  • the terminal device may generate and send one or more CSIs based on at least one of the following parameters:
  • Parameter 1 The number M of measurement reports reported by each CSI, where M is a positive integer;
  • Parameter 2 the total number of groups Q of measurement reports reported by multiple CSI, where Q is a positive integer
  • Parameter 3 The number of CSI N when reporting measurement reports through multiple CSIs, where N is a positive integer.
  • the terminal device may generate and send the CSI based on only the parameter 1.
  • the protocol defaults that each CSI report is independent.
  • one CSI report includes at least one set of measurement reports, and different sets of measurement reports correspond to different spatial reception filters of the terminal device.
  • the parameter M is the terminal device's primary CSI. Number of measurement reports allowed to be reported.
  • the terminal device may generate and send the CSI based on the parameter 2 or the parameter 3.
  • the protocol defaults that each CSI can only include a set of measurement reports.
  • the parameters Q and N are equivalent and both correspond to different spatial receiving filters of the terminal device.
  • the terminal device is only based on parameter 2 or parameter 3. Either one can determine the number of measurement reports allowed to be reported through multiple CSIs.
  • the terminal device may generate and send the CSI based on any two items of parameters 1 to 3.
  • the third term can be derived from any two of M, Q, and N.
  • parameter Q corresponds to different spatial receiving filters of the terminal device.
  • the terminal device can determine the number of measurement reports allowed to be reported through multiple CSIs, and parameter M to determine the number of measurement reports allowed to be reported per CSI.
  • the parameter N determines the total number of CSI required.
  • the number of CSIs is 1, the number of groups M of measurement reports included in each CSI and the total number Q of measurement reports reported by multiple CSIs may be equal. Similarly, when the number of measurement reports included in each CSI is 1, the total number Q of measurement reports and the number N of CSIs reported through multiple CSIs may also be equal.
  • the “reporting measurement reports through multiple CSIs” involved in parameters two and three refers to that when a terminal device performs channel measurement based on different spatial reception filters, a single CSI transmission cannot include all the measurements to be reported. In the case of a report, it needs to be sent through multiple CSIs. Therefore, the number of “multiple CSIs” involved in parameter two and parameter three may refer to the number of times of CSI transmission.
  • the number of spatial receiving filters used by the terminal device in the beam training is not necessarily the number of spatial receiving filters in the terminal device.
  • the terminal device may include eight spatial receiving filters, but It is possible to use only four spatial receive filters in training. It can be understood that the number of spatial receiving filters used by the terminal device in the beam training may be less than or equal to the number of spatial receiving filters in the terminal device.
  • the above-mentioned parameters M, Q, and N may be predefined, such as a protocol definition; or may be determined by a network device and instruct the terminal device; the above two methods may also be combined. This application does not limit this.
  • the parameter M may be predefined or may be instructed by the network device to the terminal device through signaling.
  • the parameter Q or N may be predefined or may be indicated by the network device to the terminal device through signaling. If the terminal device sends the CSI in the above manner, any two of the parameters M, Q, and N may be It is predefined, or it may be indicated by the network device to the terminal device through signaling, or one of the parameters may be defined in advance, and the network device indicates another parameter through signaling.
  • the parameter N is predefined, The network device indicates M or Q through signaling.
  • the method 200 further includes: step 250, the network device sends second instruction information, where the second instruction information is used for Indicate one or more of the above-mentioned M, Q, and N.
  • the terminal device receives the foregoing second instruction information, where the second instruction information is used to indicate one or more of M, Q, and N.
  • the network device may be determined according to the capability information reported by the terminal device.
  • the method 200 further includes: step 260, the terminal device sends capability information, where the capability information includes one or more of the following parameters:
  • Parameter i the number of spatial receiving filters, or the number of receiving beams
  • Parameter ii the maximum number of measurement reports reported by each CSI
  • Parameter iii the maximum number of total groups of measurement reports reported by multiple CSIs.
  • Parameter iv The maximum number of CSI when reporting measurement reports through multiple CSIs.
  • step 260 the network device receives the above capability information.
  • the parameter ii, the parameter iii, and the parameter iv may be determined by the parameter i, that is, the number of the spatial receiving filters determines the total number Q of the measurement reports reported.
  • the number of spatial receiving filters is P (P> 0 and an integer), that is, the total number of measurement reports that a terminal device can report may be an integer less than or equal to P. That is, the total number of groups Q of the measurement reports reported through multiple CSIs can satisfy: Q ⁇ P.
  • the terminal device when the terminal device reports the parameter i (that is, P) to the network device through the capability information, the parameter iii is equal to P by default. At this time, the terminal device does not need to report the parameter iii through the capability information; vice versa. In other words, the terminal device may report any one of the parameter i and the parameter iii to the network device through the above capability information.
  • the number of groups M of measurement reports reported by each CSI in parameter 1 above may be less than or equal to the maximum number of groups of measurement reports reported by each CSI in parameter ii;
  • the total number of groups Q may be less than or equal to the maximum value of the total number of groups reported through measurement reported by multiple CSIs in parameter iii;
  • the number N of multiple CSIs in parameter 3 above may be less than or equal to the maximum number of CSIs reported in parameter iv.
  • the capability information sent by the terminal device to the network device may include the foregoing parameter i or parameter ii.
  • the terminal device sends the CSI by using the third method the terminal device sends the CSI to the network.
  • the capability information sent by the device may include the above-mentioned parameter i, parameter iii, or parameter iv; when the terminal device sends the CSI by using the above method 4, the capability information sent by the terminal device to the network device may include the parameters ii, iii, and iv. Any two items, or the capability information may also include any two items of the parameters i, ii, and iv.
  • the number of the above-mentioned space receiving filters may be the number of the space receiving filters arranged on the same antenna panel, or may be the total number of the space receiving filters arranged on multiple antenna panels, or , Can also be the number of spatial receiving filters containing antenna panel information.
  • P panel1 can be used to indicate the number of spatial receiving filters configured on panel 1
  • P panel2 can be used to indicate the spatial receiving filters configured on panel 2.
  • the form of the parameter i can be (P panel1 , P panel2 ), or P is not only a value, but a sequence of multiple values, and the number of values included in the sequence can be equal to the antenna. The number of panels.
  • the capability of the terminal device may be used as a factor for the network device to determine the foregoing parameters M, N, or Q, and the network device may also determine the foregoing parameters based on other factors, which is not limited in this application.
  • the terminal device may perform measurement based on the reference signal received by each spatial receiving filter, and report the measurement result to the network device in groups.
  • the terminal device can obtain one or more measurement results based on the reference signal received by the same spatial receiving filter.
  • one or more measurement results obtained based on the reference signal measurement received by the same spatial receiving filter may be classified as a group of measurement reports.
  • each measurement result can include one or more of the following:
  • each measurement result may only report the identifier of the reference signal resource, or only the reference signal received power information, or the identifier of the reference signal resource and the corresponding reference signal received power information.
  • each set of measurement reports may include the identification of one or more reference signal resources, or the received power information of one or more reference signals, or the identification of one or more reference signal resources, and the reference signal corresponding to the identification of each reference signal resource. Receive power information.
  • the network device and the terminal device may agree on the conditions of the reported reference signal resource, for example, when the RSRP is greater than a preset threshold, the identifier of the reference signal resource corresponding to the reference signal is reported to the network device.
  • the terminal device can only report the identification of the reference signal resource, and the network device can directly determine the corresponding transmission beam based on the identification of the received reference signal resource.
  • the network device and the terminal device may agree to measure for a certain reference signal resource in advance, and the terminal device may report the reference signal receiving power information of receiving the reference signal on the reference signal resource to the network device. In this design, the terminal device can only report the reference signal received power information.
  • the terminal device may report the identification of one or more reference signal resources with higher reference signal received power and the corresponding reference signal received power information to the network device according to the received power of the reference signal.
  • the network device may determine the corresponding transmission beam according to the identifier of the reference signal resource reported by the terminal device and the corresponding reference signal reception power information, and select a transmission beam with a higher RSRP (for example, the RSRP is greater than a preset threshold) for transmission. signal.
  • the multiple reference signal received power information may be: multiple RSRPs, or indication information of a maximum value in multiple RSRPs and a difference value relative to the maximum value .
  • the received power information of the multiple reference signals can be reported directly through the absolute value of RSRP; RSRPs other than the maximum RSRP among multiple RSRPs in each measurement report can also be reported in a differential manner. Report in a differential manner within the group.
  • the CSI may include multiple reference signal received power information.
  • the plurality of reference signal received power information may be: multiple RSRPs, or indication information of a maximum value and a difference value relative to the maximum value among the multiple RSRPs.
  • the received power of the multiple reference signals can be directly reported through the absolute value of RSRP; RSRPs other than the maximum RSRP among multiple RSRPs in multiple measurement reports can also be reported in a differential manner. Report in inter-differential mode.
  • the terminal device may first determine the maximum RSRP value from multiple RSRPs measured based on the reference signal received by the same receive beam, and then compare other RSRPs to be reported with the above. The maximum difference in RSRP is reported to the network device.
  • the terminal device may first determine the maximum RSRP value from multiple RSRPs measured based on the reference signal received by multiple receiving beams, and then compare other RSRPs to be reported with the above. The maximum difference in RSRP is reported to the network device.
  • the RSRP value gap between the groups may be large. If the differential indication method of the prior art is directly adopted, the RSRP value that needs to be indicated may exceed the value defined in the existing protocol.
  • the range that can be indicated by the difference step and the indication bit of the difference value For example, in the prior art, the difference step size is 2 dB, and the indication bit of the difference value is 4 bits, which means that the effective indication range of the difference value is at most 32 dB.
  • the difference between the absolute values of the maximum RSRP between the two sets of measurement reports may exceed 32 dB.
  • the protocol can define a larger differential step size or more indicator bits.
  • the differential step size can be set to 4dB, and the 4dB differential step size can be further limited to be used by default when packet reporting based on the spatial reception filter is turned on.
  • the indication bit of the difference value may be defined as 5 bits, and the 5 bits may be further limited to be used by default when packet reporting based on the spatial reception filter is turned on.
  • difference step size and the number of bits used to indicate the difference value are merely examples, and should not be construed as limiting in this application.
  • a protocol may define a larger or smaller differential step size, or it may define more or fewer bits to indicate a differential value.
  • each group of measurement reports further includes a group identifier, and each group identifier corresponds to a spatial receiving filter.
  • An indication field of a group identification may be included in each group of measurement reports.
  • the indication field of the group identifier may be carried by m bits, for example.
  • the group identifier may also be local, that is, the corresponding relationship between the group identifier and the spatial receiving filter in the measurement report reported by any two CSI may be different, or each time The correspondence between the group identifier in the measurement report reported by the CSI and the spatial receiving filter is independent.
  • the number of group identifiers may be determined according to the number of groups M reported by each CSI.
  • the network device may determine the correspondence between the transmit beam and the receive beam based on the group identifier carried in the same CSI report.
  • the terminal device includes 4 spatial receiving filters, for example, they can be described as spatial receiving filters # 0 to # 3, but in the CSI report, only the reference received by the spatial receiving filters # 1 and # 2 is used. Signals are measured and reported, the group identifiers can be # 1 and # 2; in the next CSI report, the terminal device may measure and report only based on the reference signals received by the spatial reception filters # 0 and # 3, and The group ID can still be # 1 and # 2, and of course it can be # 3 and # 4.
  • the network device cannot determine whether the spatial reception filter corresponding to the measurement report with the group ID # 1 in the previous CSI report and the spatial reception filter corresponding to the measurement report with the group ID # 1 in the next CSI report are the same spatial reception. It is also impossible to determine whether the spatial reception filter corresponding to the measurement report with the group ID # 2 reported by the two CSIs is the same spatial reception filter. It can be seen that when the group identifier is a local group identifier, only different group identifiers in the same CSI report can be used to distinguish different spatial receiving filters.
  • the group identifier may be global, that is, the correspondence between multiple group identifiers and multiple spatial receiving filters may be constant within a predetermined period of time, or in other words, The corresponding relationship between the group identifier in the measurement report reported by the CSI for multiple times in a predetermined period of time and the spatial receiving filter may remain unchanged.
  • the number of group identifiers may be determined by the total group number Q of a measurement report reported through CSI.
  • the total group number Q is equal to the group number M of the measurement report included in each CSI.
  • the network device may determine the correspondence between the transmit beam and the receive beam based on the group identifier carried in the multiple CSI reports.
  • the terminal device includes 4 spatial receiving filters, it can correspond to four different group identifiers.
  • the spatial receiving filter # 0 can correspond to the group identifier # 0
  • the spatial receiving filter # 1 can correspond to the group.
  • the identifier # 1 the spatial receiving filter # 2 may correspond to the group identifier # 2
  • the spatial receiving filter # 3 may correspond to the group identifier # 3.
  • the terminal device may only measure and report based on the reference signals received by the spatial receiving filters # 1 and # 2, and the group identifiers may be # 1 and # 2, respectively.
  • the terminal device may only measure and report based on the reference signals received by the spatial reception filters # 2 and # 4, and the group identifiers may be # 2 and # 4, respectively.
  • the network device can still determine that the measurement report with the group ID # 1 and the measurement report with the group ID # 4 correspond to different spatial reception filters; similarly, the CSI reports in the two groups The measurement report identified as # 2 corresponds to the same spatial receiving filter.
  • the corresponding relationship between the multiple group identifiers and multiple spatial receiving filters may remain unchanged for a predetermined period.
  • the predetermined period may be understood as an effective time window of a correspondence relationship between the multiple group identifiers and multiple spatial receiving filters.
  • the predetermined period may be any one of the following:
  • the time interval between two CSI reports, the two CSI reports satisfy: based on the same CSI report configuration or based on two CSI report configurations with the same time domain behavior parameters;
  • the time interval between two reference signal transmissions, the two reference signal transmissions satisfy: transmission based on the same reference signal resource configuration, or transmission based on the same reference signal resource set configuration, or, based on the same reference signal resource configuration Transmission, or configuration transmission based on reference signal resource having the same time domain behavior parameter;
  • the time interval between two CSI reports can be understood as the interval between the i-th CSI report time and the i + j-th CSI report time, i and j are positive integers. That is, the start time of the predetermined period may be the time of the i-th CSI report, and the end time may be the time of the i + j CSI report.
  • the time domain behavior based on the CSI report configuration based on any two CSI reports is the same.
  • the j CSI reports may all be periodic, semi-persistent, or non-periodic.
  • the j times of CSI reporting may be all based on the same CSI reporting configuration, that is, any two times of CSI reporting are based on the same CSI reporting configuration; the j times of CSI reporting may also be partially based on the same CSI reporting configuration, That is, at least two CSI reports in the j times may be based on the same CSI report configuration; the j CSI reports may also be based on different CSI report configurations, that is, the CSI report configurations based on each CSI report are different from each other . Regardless of whether the configuration is based on the same CSI report, the time domain behavior of the j CSI reports is the same.
  • the time interval between the two reference signal transmissions can be understood as the interval between the time when the p-th reference signal is sent and the time when the p + q reference signal is sent.
  • the start time of the predetermined period may be the time of sending the p-th reference signal
  • the end time may be the time of sending the p + q-th reference signal
  • the time-domain behavior of the reference signal resources used for any two reference signal transmissions is the same.
  • the q reference signal transmissions may all be periodic, semi-persistent, or non-periodic.
  • the reference signal can be CSI-RS or SSB.
  • CSI-RS can be configured by CSI-RS resource set in CSI resource setting.
  • SSB can also be used as a channel through a special CSI-SSB-ResourceSet indication. Measured SSB index.
  • all the q reference signal transmissions can be based on the same resource configuration, such as CSI resource setting; the q reference signal transmissions can also be all based on the same reference signal resource set configuration, such as CSI-RS resource qset or CSI-SSB-ResourceSet; the q times of reference signal transmission can all be based on the same reference signal resource configuration, such as CSI-RS resource or SSB resource; the q times of reference signal transmission can also be based on different resource configurations or references
  • the signal resource set configuration that is, the resource configuration based on each reference signal transmission is different from each other, and the reference resource set configuration based on each reference signal transmission is different from each other. Regardless of whether it is based on the same resource configuration or the same reference signal resource set configuration, the time domain behavior of the reference signal resource used for the q times of reference signal transmission is the same.
  • the start time of the predetermined period may be the time when the CSI reporting configuration reported by the packet is enabled, and the end time may be the time when the same CSI reporting configuration is reconfigured.
  • the CSI reporting configuration being enabled may mean that the CSI reporting configuration for enabling packet reporting is configured, and the time when the CSI reporting configuration for enabling packet reporting is enabled may be the CSI reporting for enabling packets Configure the configured time.
  • the CSI reporting configuration is enabled to distinguish between time domain behavior.
  • enabling CSI reporting configuration may be related to time domain behavior.
  • the time domain behavior configured due to CSI reporting may include periodic, semi-persistent, and non-periodic.
  • periodic CSI reporting configuration the time when the CSI reporting configuration is enabled may be the time when the CSI reporting configuration is configured, and for semi-persistent CSI reporting configuration, the time when the CSI reporting configuration is enabled It may be the time when the CSI report configuration is activated.
  • semi-persistent CSI reporting configuration the time when the CSI reporting configuration is enabled may be the time when the CSI report configuration is triggered.
  • the CSI report configuration may be configured through, for example, a high-level parameter in an RRC message.
  • the network device may indicate the configured CSI report configuration by using the CSI report configuration increase status list (csi-ReportConfigToAddModList) in the RRC message.
  • csi-ReportConfigToAddModList the CSI report configuration increase status list
  • a certain CSI report configuration appears in the above csi-ReportConfigToAddModList, it indicates that the CSI report configuration is configured.
  • the terminal device For periodic CSI reporting, when the terminal device receives the CSI reporting configuration sent by the RRC message, it can periodically report the CSI according to the CSI reporting configuration. Therefore, for periodic CSI reporting, the time when the CSI reporting configuration enabled for group reporting can be the time when the CSI reporting configuration is configured, that is, the time when the terminal device receives the CSI reporting configuration.
  • the network device may first send the CSI reporting configuration through an RRC message, and thereafter, the network device may activate the terminal device to report the CSI through MAC or CEI.
  • the network device may activate and deactivate the CSI reporting through the MAC CE.
  • the terminal device may periodically report the CSI according to the CSI reporting configuration; the terminal device may also stop reporting the CSI after receiving the MAC CE deactivation instruction.
  • the network device can activate and deactivate the CSI report through DCI.
  • the terminal device may periodically report CSI according to the CS reporting configuration; the terminal device may also stop reporting CSI after receiving the DCI deactivation instruction. Therefore, for semi-persistent CSI reporting, the time when the CSI reporting configuration with packet reporting enabled is the time when the CSI reporting configuration is activated, that is, the time when the terminal device receives the MAC CE or DCI activation instruction.
  • the network device may also first send the CSI reporting configuration via an RRC message. After that, the network device may report the CSI through a DCI trigger (trigger) terminal device. After receiving the trigger of the DCI, the terminal device can perform a CSI report according to the CSI report configuration. Therefore, for aperiodic CSI reporting, the time when the CSI reporting configuration with packet reporting enabled is the time when the CSI reporting configuration is triggered, that is, the time when the terminal device receives the DCI trigger.
  • a DCI trigger trigger
  • the CSI reporting configuration interval is enabled from re-configuration for a predetermined period of time, when the CSI reporting configuration for enabling group reporting is enabled, the correspondence between multiple group identifiers and multiple spatial receive filters takes effect, and It remains unchanged until the CSI report configuration is reconfigured.
  • the time interval from the enabling to the reconfiguration of a CSI report configuration as a predetermined period is only an example, and should not be construed as any limitation in this application.
  • the predetermined period may also be a time interval from when one CSI report configuration is enabled to another CSI report configuration is configured or reconfigured.
  • the time domain behavior of the two CSI reporting configurations is defined when the CSI reporting configuration that enables packet reporting is configured, activated, or triggered to another CSI reporting configuration being configured or reconfigured for a predetermined period of time They can be the same, for example, they can be periodic, semi-persistent, or non-periodic.
  • the start time of the predetermined period may be the time when the CSI resource configuration is enabled, and the end time may be the time when the same CSI resource configuration is reconfigured.
  • the CSI resource configuration is enabled may refer to that the CSI resource configuration is configured, and the time when the CSI resource configuration is enabled may be the time when the CSI resource configuration is configured. In this implementation, the CSI resource configuration does not distinguish between time domain behavior.
  • the CSI resource configuration is enabled may be related to time-domain behavior.
  • the time domain behavior due to CSI resource configuration can include periodic, semi-persistent, and aperiodic.
  • the time when the CSI resource configuration is enabled may be the time when the CSI resource configuration is configured; for semi-persistent CSI resource configuration, the time when the CSI resource configuration is enabled It may be the time when a CSI resource set associated with the CSI resource configuration is activated.
  • the time when the CSI resource configuration is enabled may be the time when a CSI resource set associated with the CSI resource configuration is activated. The time when it was triggered.
  • the CSI resource configuration may be configured through, for example, a high-level parameter in an RRC message.
  • the network device can indicate the configured CSI resource configuration (CSI resource configuration) through the CSI resource configuration increase status list (csi-ResourceConfigToAddModList) in the RRC message, or can add the status list through the NZP CSI-RS resource set in the RRC message (nzp-CSI-RS-ResourceSetToAddModList) indicates the configured CSI-RS resource set (CSI-RS resource set), and the status list (nzp-CSI-RS-ResourceToAddModList) can also be added through the NZP CSI-RS resource in the RRC message It indicates the configured CSI-RS resource (CSI-RS resource), and can also indicate the configured SSB resource set (SSB resource set) through the CSI-SSB resource set addition status list (CSI-SSB-ResourceSetToAddModList) in the RRC message.
  • CSI resource configuration indicates the configured CSI-RS resource (CSI-RS resource)
  • a certain CSI-RS resource configuration appears in the above csi-ResourceConfigToAddModList, it may indicate that the CSI-RS resource configuration is configured; when a certain CSI-RS resource set appears in the nzp-CSI-RS-ResourceSetToAddModList, it may indicate The CSI-RS resource set is configured; when a CSI-RS resource appears in the nzp-CSI-RS-ResourceToAddModList, it can indicate that the CSI-RS resource is configured; when a SSB resource set appears in the CSI-SSB-ResourceSetToAddModList When it is medium, it can indicate that the SSB resource set is configured.
  • the terminal device For periodic reference signal transmission, when the terminal device receives the CSI resource configuration sent by the RRC message, it can periodically receive the reference signal based on the CSI resource configuration for channel measurement. Therefore, for periodic CSI resource configuration, the time for which the CSI resource configuration reported by the enable packet is the time when the CSI resource configuration is configured, that is, the time when the terminal device receives the CSI resource configuration.
  • the network device may first send the CSI resource configuration through an RRC message, after which the network device may activate the terminal device to receive the reference signal through the MAC CE.
  • the terminal device can periodically receive the reference signal based on the CSI resource configuration activated CSI resource set; the network device can also deactivate the terminal device to receive the reference signal through the MAC CE.
  • the terminal device is receiving After receiving the deactivation instruction of MAC CE, it stops receiving the reference signal. Therefore, for semi-continuous reference signal transmission, the time to enable CSI resource configuration can be the time when a CSI resource set associated with the CSI resource configuration is activated, that is, the time when the terminal device receives the MAC CE activation command. .
  • the network device may also first send the CSI resource configuration through an RRC message. After that, the network device may receive the reference signal through a DCI trigger terminal device. After receiving the DCI trigger, the terminal device Then, the reference signal can be received based on the triggered CSI resource set based on the CSI resource configuration. Therefore, for aperiodic reference signal transmission, the time when the CSI resource configuration is enabled may be the time when a CSI resource set associated with the CSI resource configuration is triggered, that is, the time when the terminal device receives the trigger of the DCI.
  • the CSI resource set described above may be, for example, a CSI-RS resource set or an SSB resource set.
  • the predetermined period is a time interval from a CSI resource to being reconfigured
  • the correspondence between multiple group identifiers and multiple spatial receiving filters takes effect and remains unchanged until the The CSI resource configuration is reconfigured.
  • the time interval from the enabling to the reconfiguration of a CSI resource configuration as a predetermined period is only an example, and should not constitute any limitation to the present application.
  • the predetermined period may also be a time interval from when one CSI report configuration is enabled to another CSI report configuration is configured or reconfigured.
  • the time domain behavior of the two CSI reporting configurations is defined when the CSI reporting configuration that enables packet reporting is configured, activated, or triggered to another CSI reporting configuration being configured or reconfigured for a predetermined period of time They can be the same, for example, they can be periodic, semi-persistent, or non-periodic.
  • a CSI report configures the time interval from enabling to releasing:
  • the start time of the predetermined period may be the time when the CSI report configuration is enabled, and the end time may be the time when the same CSI report configuration is released.
  • the CSI report release can be configured through high-level parameters in the RRC message, for example.
  • the network device may indicate the released CSI report configuration through the CSI report configuration release list (csi-ReportConfigToReleaseList) in the RRC message.
  • csi-ReportConfigToReleaseList the CSI report configuration release list
  • a certain CSI report configuration appears in the csi-ReportConfigToReleaseList, it means that the CSI report configuration is released.
  • the start time of the predetermined period may be the time when the CSI resource configuration is enabled, and the end time may be the time when the same CSI resource configuration is released.
  • the CSI resource release can be configured through, for example, high-level parameters in the RRC message.
  • the network device may indicate the released CSI resources through the CSI resource configuration release list (csi-ResourceConfigToReleaseList) in the RRC message, or may use the NZP CSI-RS resource set release list (nzp-CSI-RS-RS- ResourceSetToReleaseList) indicates the released CSI-RS resource set. It can also indicate the released CSI-RS resources through the NZP CSI-RS resource release list (nzp-CSI-RS-ResourceReleaseList) in the RRC message.
  • the CSI-SSB-ResourceSetToReleaseList indicates the released SSB resource set.
  • a certain CSI-RS resource configuration appears in the above csi-ResourceConfigToReleaseList, it may indicate that the CSI-RS resource configuration is released; when a certain CSI-RS resource set appears in the nzp-CSI-RS-ResourceSetToReleaseList, it may indicate The CSI-RS resource set is released; when a CSI-RS resource appears in the nzp-CSI-RS-ResourceToReleaseList, it can indicate that the CSI-RS resource is released; when an SSB resource set appears in the CSI-SSB-ResourceSetToReleaseList When it is medium, it can indicate that the SSB resource is released.
  • the start time of the predetermined period may be a time configured to enable CSI reporting, and the length of the predetermined period may be indicated by a network device or may be defined by a protocol.
  • the specified length may be measured in absolute time, for example, one or more time slots, one or more symbols, or one or more seconds, one millisecond or more, one microsecond or more. Microseconds, etc .; the specified length may also be the number of CSI reports, such as one or more CSI reports. This application does not limit this. The understanding of the CSI reporting configuration is enabled has been described in detail above, for the sake of brevity, it will not be repeated here.
  • the start time of the predetermined period may be the time when the CSI resource configuration is enabled, and the length of the predetermined period may be indicated by a network device or may be defined by a protocol.
  • the specified length may be measured in absolute time, for example, one or more time slots, one or more symbols, or one or more seconds, one millisecond or more, one microsecond or more. Microseconds, etc .; the specified length may also be the number of reference signal transmissions, such as one or more reference signal transmissions.
  • This application does not limit this.
  • the understanding of the CSI resource configuration is enabled has been described in detail above, for the sake of brevity, it will not be repeated here. It should be understood that the several possible definitions of the specified time periods listed above are merely examples, and should not be construed as limiting this application in any way.
  • the predetermined time period may be any one of the items a) to h) listed above, and the predetermined time period may specifically be any one of the items a) to h) listed above may be defined by an agreement.
  • the terminal device may be instructed in advance by the network device. For example, a bitmap may be used to indicate which of the above a) to h) the predetermined period is.
  • the terminal device After the terminal device determines which of the above a) to h) the predetermined period of time, the terminal device can further determine specific parameters.
  • specific parameters of the predetermined period may be predefined, such as a protocol definition.
  • the specific parameters of any of a) to h) above are defined as defined in the protocol.
  • the start time of the predetermined period may be the time of the i-th CSI report, and the end time may be the time of the i + j CSI report.
  • the protocol may define the above i and j Value; when the predetermined period is b), the start time of the predetermined period can be the time of the p-th reference signal transmission, and the end time can be the time of the p + q reference signal transmission.
  • the protocol can define the above-mentioned p and The value of q; when the predetermined period is any one of c) to f), specific parameters may not be further defined; when the predetermined period is g) or h), the protocol may define a specified length, for example, it may be defined by absolute time
  • the specified length such as x (x> 0) timeslots or symbols, y (y> 0) seconds, milliseconds, or microseconds, or the specified length can also be defined by the number of CSI reports or the number of reference signal transmissions, such as , Z (z> 0 and an integer) CSI reports or z reference signal transmissions.
  • the method 200 further includes: the network device receives fourth indication information, where the fourth indication information is used to indicate a start time and a length of the predetermined period.
  • the terminal device receives the fourth instruction information.
  • the start time of the predetermined period may be the time of the i-th CSI report, and the end time may be the time of the i + j CSI report
  • the network device may pass the fourth instruction
  • the information indicates i and j to the terminal device; when the predetermined period is b), the start time of the predetermined period may be the time of the p-th reference signal transmission, and the end time may be the time of the p + q reference signal transmission, Then the network device may indicate p and q to the terminal device through the fourth instruction information; when the predetermined period is any one of c) to f), the network device may not indicate specific parameters; when the predetermined period is g) or h) The network device may indicate the specified duration of the predetermined time period to the terminal device through the fourth instruction information.
  • the protocol may define the definition method and timing unit of the specified duration in advance.
  • the absolute duration may be used for the protocol definition.
  • the network device may indicate a specific value through the fourth instruction information, such as the above x or y; for another example, it may be defined by the number of CSI reports or the number of reference signal transmissions.
  • the protocol may be defined in advance. CSI is reported the number of the reference signal is defined based on the number of transmissions, the network device may indicate information specific numerical values indicated by the fourth, as described above z.
  • the end time can be calculated from the start time and length. Therefore, the network device can indicate any two items of the start time, length, and end time of the predetermined period to the terminal device.
  • the terminal device can Term infers another term. Therefore, when the network device indicates to the terminal device any of the start time, length, and end time of the predetermined period by the fourth instruction information, it should fall within the protection scope of this application.
  • the method for defining the predetermined period is not limited to the above.
  • the predetermined period may also be determined through a combination of a protocol definition and a network device indication.
  • the start time of the predetermined period may also be the time when the terminal device receives the fourth instruction information.
  • the fourth instruction information may further indicate the duration of the predetermined period.
  • the method for the terminal device to determine the predetermined time period includes, but is not limited to, the foregoing list. For the sake of brevity, no further examples are given here.
  • the network device by carrying the group identifier in the measurement report, it is convenient for the network device to obtain the correspondence between the transmitting beam and the receiving beam. However, it should be understood that this is not the only way to determine the correspondence between the transmit beam and the receive beam. For example, when a terminal device reports multiple sets of measurement reports through multiple CSIs, the terminal device may also use a one-bit indication field to indicate the spatial reception filter corresponding to the current CSI report and the previous CSI report each time the CSI reports The device is the same. For example, "0" means different, and "1" means the same.
  • the results obtained based on the measurement of the reference signal received by a spatial receiving filter may be classified into a group of measurement reports, and thus one or more spatial filtering may be obtained.
  • the terminal device can report the measurement results to the network device in groups by CSI.
  • This method of group report CSI based on spatial reception filter is called group report based on spatial reception filter.
  • UE Rx beam based a packet reporting based on a receiving beam
  • simultaneous reporting Simultaneous reception based packet reporting
  • group reporting based group reporting for short.
  • the CSI reporting method may also include non-packet reporting.
  • the method 200 further includes: step 270, the network device sends first indication information, where the first indication information is used to indicate a first reporting mode, and the first reporting mode is based on a spatial reception filter Reported in groups.
  • step 270 the terminal device receives the first indication information.
  • the first indication information may be carried in a CSI report configuration (CSI report setting) of the RRC message.
  • the first indication information may be used to indicate one of a plurality of reporting methods, and the multiple reporting methods at least include group reporting based on a spatial receiving filter.
  • the indication field of the first indication information may be carried in an information element (CSI-ReportConfig), which is used to notify the terminal.
  • future protocols may support more than one reporting method.
  • first reporting method that is, a group reporting method based on a spatial reception filter
  • second and third reporting methods and even more. Way of reporting.
  • the second reporting method may be, for example, packet reporting based on simultaneous reception
  • the third reporting method may be, for example, non-packet reporting. This application does not limit this.
  • the first indication information may be carried in a packet reporting parameter of the above-mentioned CSI reporting configuration.
  • the first reporting method can be understood as the first packet reporting method, and the first indication information can be used to indicate one of multiple packet reporting methods.
  • the multiple packet reporting methods at least include packet reporting based on a spatial receiving filter. .
  • the first indication information is carried in the packet reporting parameters configured in the CSI reporting, for example, the first indication information may be configured in a beam based reporting field in the CSI reporting configuration information element, or a beam in the CSI reporting configuration information element.
  • the packet is reported in the enabled state in the parameter field.
  • future protocols may support more than one reporting method.
  • first reporting method group-based reporting method based on the spatial reception filter
  • second and fourth reporting methods and even more.
  • Reporting method may be, for example, packet reporting based on simultaneous reception
  • fourth reporting method may be, for example, packet reporting based on interference measurement. This application does not limit this.
  • the information element or field carrying the first indication information may be enumerated in a form of enumeration, for example, the first indication information may indicate Reporting method based on the spatial receiving filter; the index or identification of a certain reporting method may also be indicated by an indication bit, for example, the first indication information may indicate the index or identification corresponding to the reporting method based on the spatial receiving filter Wait.
  • the time domain behavior based on the CSI reporting configuration is different, and the first indication information may also be carried in different signaling.
  • the first indication information may be carried in one or more of an RRC message, a MAC CE, and a DCI.
  • the time domain behavior of the CSI reporting configuration may be periodic reporting, and the first indication information may be carried in an RRC message.
  • the network device may send a CSI report configuration and a CSI resource configuration through an RRC message, and the first indication information may be carried in the CSI report configuration or the CSI resource configuration.
  • the time domain behavior of the CSI reporting configuration may be semi-continuous reporting, and the first indication information may be carried in the MAC CE.
  • the network device may send a CSI report configuration and a CSI resource configuration through an RRC message in advance.
  • the network device can activate the CSI reporting configuration through MAC CE or DCI or can also connect with CSI resource configuration through MAC CE.
  • the first indication information may be carried in an activation instruction of the MAC CE or DCI.
  • the terminal device may perform CSI reporting according to the reporting manner indicated by the first instruction information.
  • the time domain behavior configured by the CSI report may be aperiodic reporting
  • the first indication information may be jointly indicated by an RRC message and a DCI.
  • the network device may send a CSI report configuration and a CSI resource configuration through an RRC message in advance. After that, the network device can trigger the CSI report and / or receive the reference signal through DCI.
  • the first indication information may be carried in the DCI. That is, the terminal device can perform CSI reporting according to the CSI reporting mode indicated by the DCI.
  • the terminal device can perform channel measurement and reporting based on the reference signal received by each receiving beam, so that the network device can obtain more information about the pairing relationship between the transmitting beam and the receiving beam.
  • the network device can perform more reasonable beam management according to the beam pairing relationship, so as to obtain a beam forming gain to a greater extent, which is beneficial to improving system performance.
  • the terminal device can perform channel measurement and reporting based on the reference signals received by multiple receiving beams, so that the network device can obtain the pairing relationship between multiple receiving beams and transmitting beams, and a tilting or flipping of the terminal device results in a corresponding receiving beam
  • the network device can also switch to the transmit beam corresponding to another wireless link with better quality, so that the terminal device switches to the corresponding receive beam to receive the signal, which can avoid frequent triggering of the beam failure recovery process. . Therefore, the robustness of the beam pairing relationship can be improved, which can also improve the robustness of the communication system, which is beneficial to improving the transmission efficiency and at the same time it is beneficial to improving the user experience.
  • network equipment should try to monitor the quality of the wireless link based on the different receiving beams of the terminal equipment, so that even if the terminal equipment tilts or rolls over, the receiving quality of the currently used receiving beam is reduced, and other chains are being monitored.
  • the terminal device can switch the receive beam, thereby avoiding frequent triggering of beam failure recovery procedures.
  • this application further proposes a beam diversity quality monitoring mechanism.
  • the beam diversity quality monitoring mechanism aims to monitor the radio link quality based on different receiving beams of the terminal equipment.
  • the quality of multiple wireless links based on multiple beams or beam pairs can be maintained between the network equipment and the terminal equipment.
  • the terminal device can receive the configuration information of the network device, measure and obtain the quality of the multiple wireless links corresponding to multiple beams or beam pairs (that is, measure the quality of multiple beams), and measure the quality according to the configuration of the network device. The obtained results are reported, so that the network device can obtain the quality monitoring results of multiple wireless links.
  • the network device may further determine a reference signal resource set for beam diversity quality monitoring.
  • the reference signal sent based on the reference signal resource set can be used to detect the quality of multiple wireless links corresponding to multiple beams or beam pairs.
  • the method 200 further includes: step 280, the terminal device receives third indication information, where the third indication information is used to indicate multiple reference signal resources, and the multiple reference signal resources are composed of at least two groups Measurement report confirmed.
  • the network device sends the third instruction information, where the third instruction information is used to indicate multiple reference signal resources, where the multiple reference signal resources are determined by at least two sets of measurement reports.
  • the multiple reference signal resources indicated by the third indication information are reference signal resources used for the foregoing beam diversity quality monitoring.
  • the above measurement reports may be the measurement reports described in steps 210 and 220 above.
  • Each group of measurement reports may correspond to one spatial reception filter, and different groups of measurement reports correspond to different spatial reception filters.
  • the third indication information includes identifiers of multiple reference signal resources, and the identifiers of the multiple reference signal resources are from at least two groups of the foregoing measurement reports.
  • the multiple reference signal resources indicated by the third indication information may correspond to at least two spatial receiving filters. It should be understood that the identifier of the reference signal resource is only an example of the third indication information and should not be construed as any limitation in this application.
  • the third indication information may also be other information used to indicate the reference signal resource.
  • the plurality of reference signal resources indicated by the third indication information correspond to the plurality of spatial receiving filters on a one-to-one basis.
  • each reference signal resource may correspond to a spatial receiving filter, or each reference signal resource may be determined by a set of measurement reports described above.
  • the multiple reference signal resources may be configured by the network device to the terminal device to perform beam diversity quality monitoring.
  • the multiple reference signal resources indicated by the third indication information may be configured through high-level signaling, for example, a reference signal resource set is configured through an RRC message, for example, denoted as q A , the reference signal resource.
  • the set q A may include the plurality of reference signal resources corresponding to the plurality of spatial receiving filters on a one-to-one basis.
  • the multiple reference signal resources indicated by the third indication information may correspond to multiple spatial receiving filters.
  • I reference signal resources may correspond to J spatial receiving filters (I> J> 1, I and J are integers).
  • the L reference signal resources of the I reference signal resources may correspond to J spatial receiving filters, and the remaining I-J reference signal resources may correspond to at least one of the J spatial receiving filters.
  • the multiple reference signal resources indicated by the third indication information can be divided into a first resource group and a second resource group.
  • the reference signal resources in the first resource group may correspond to, for example, the above-mentioned IL reference signal resources, and may be used for beam failure monitoring defined in the existing protocol; the reference signal resources in the second resource group may correspond to the above-mentioned L references. Signal resources can be used for beam diversity quality monitoring.
  • the measurement result when a measurement result obtained by performing beam quality measurement based on a reference signal resource (ie, a reference signal resource in a first resource group) used for beam failure monitoring satisfies a preset condition, the measurement result may be counted into a beam Failure count.
  • the first resource group may be the reference signal resource set q 0 configured in Beam-Failure-Detection-RS-ResourceConfig introduced above.
  • the number of beam failures is greater than the beamFailureInstanceMaxCount, a beam failure recovery process may be triggered.
  • the specific process and method of beam failure detection can refer to the prior art. For brevity, detailed description of the specific process and method is omitted here.
  • the measurement results obtained are not included in the beam failure count.
  • the network device may also notify the terminal device of the L reference signal resources by using the additional instruction information. Therefore, after step 230, optionally, the method 200 further includes step 290: the network device sends fifth indication information, where the fifth indication information is used to indicate L reference signal resources.
  • step 290 the terminal device receives the foregoing fifth instruction information.
  • the reference signal resources in the second resource group indicated by the fifth indication information may be the aforementioned L reference signal resources.
  • the fifth indication information may specifically be an identifier of the L reference signal resources, or an identification sequence, or an index of the L reference signal resources in the I reference signal resource, or an index sequence.
  • the fifth indication information may also indicate the number L of reference signal resources. For example, it may be agreed through the protocol that the above-mentioned L reference signal resources are always placed at the beginning or end of the I reference signals in order. L, you can know which reference signal resources are not counted in the beam failure count.
  • the method 200 further includes: the network device sends a reference signal based on the multiple reference signal resources.
  • the terminal device receives a reference signal based on the plurality of reference signal resources.
  • the terminal device may receive the reference signal sent by the network device based on the third reference information received in step 280, based on the multiple reference signal resources, to evaluate the radio link quality.
  • the specific method for the terminal device to perform beam quality measurement based on the configured reference signal resource may refer to the specific method for beam quality measurement based on the reference signal resource in the prior art for beam failure monitoring.
  • a detailed description of the specific method is omitted here.
  • the reference signal resources configured by the network device may correspond to multiple receive beams of the terminal device, so multiple wireless chains corresponding to multiple receive beams may be used. Road for quality monitoring.
  • the terminal device After the network device obtains the measurement report of the terminal device based on the spatial reception filter through the packet reporting method based on the spatial reception filter, and configures a reference signal resource for beam diversity quality monitoring, the terminal device can use the beam diversity quality monitoring
  • the mechanism obtains beam quality based on different spatial receive filters.
  • the terminal device will obtain the indication information of a spatial reception filter indicated by the network device through signaling, such as the TCI status list described above.
  • the specific indication method please refer to the current There are technologies, which are not repeated here.
  • the terminal device may find that the beam quality corresponding to the currently used spatial receiving filter decreases, and The quality of the beams corresponding to other spatial receiving filters has risen or maintained at a better level.
  • the better level may be a threshold, for example. At this time, the terminal device can avoid the failure to recover from entering the beam through the following implementation methods.
  • the terminal device may first adjust the spatial receiving filter by itself, and may report the adjustment information to the network device after the adjustment.
  • the beneficial effect of this implementation mode is that the terminal device directly adjusts the spatial reception filter, the current link communication is not easy to be interrupted, and the link quality after adjusting the spatial reception filter may be restored to above the threshold, which can ensure normality.
  • Communication The terminal device can report the adjustment information of the spatial receiving filter (that is, the adjustment information of the received beam) to the network device on the premise of ensuring normal communication, to help the network device adjust the transmit beam.
  • the terminal device may report adjustment information of the spatial receiving filter through a physical random access channel (physical random access channel (PRACH)).
  • PRACH physical random access channel
  • the terminal device may report the adjustment information of the spatial receiving filter through a physical uplink control channel (PUCCH).
  • PUCCH physical uplink control channel
  • the adjustment information of the spatial reception filter is an identifier corresponding to the spatial reception filter selected by the terminal device, and the identifier may be indication information of a reference signal resource corresponding to the spatial reception filter, and the indication information of the reference signal resource.
  • the reference signal resource is a certain reference signal resource configured in a reference signal resource set used for beam diversity quality monitoring.
  • the network device notifies the terminal device of the adjustment information of the transmission beam.
  • the notification information may be carried in RRC, MAC-CE, or dynamic signaling, for example.
  • the adjustment information may be an indication, an acknowlegeement, or a response.
  • the network device does not need to notify the terminal device of the adjustment information of the transmission beam.
  • the terminal device may default the network device to adjust the transmit beam according to the adjustment information of the spatial receiving filter.
  • the terminal device may report a better spatial receiving filter to the network device according to the monitoring result of the beam diversity quality, and then the network device selects and instructs the corresponding spatial receiving filter to the terminal device.
  • the network device can configure the terminal device with reference signal resources corresponding to different receiving beams. Therefore, when the terminal device's tilt or rollover causes the reception quality of some of the receiving beams to decrease, other receiving beams can be used to evaluate the wireless link quality . Thereby, frequent failure recovery from entering the beam can be avoided, which is beneficial to improving the robustness of the beam pairing relationship, thereby improving the robustness of the transmission system, and improving the user experience.
  • This application also provides a method for receiving and sending reference signals, which is beneficial to improving the robustness and user experience of the transmission system.
  • FIG. 3 is a schematic flowchart of a method 300 for receiving and sending a reference signal according to another embodiment of the present application, which is shown from the perspective of device interaction. As shown, the method 300 shown in FIG. 3 includes steps 310 to 330. The method 300 is described in detail below with reference to FIG. 3.
  • step 310 the network device sends third indication information, where the third indication information is used to indicate multiple reference signal resources, and the multiple reference signal resources correspond to at least two spatial receiving filters.
  • the terminal device receives third indication information, where the third indication information is used to indicate multiple reference signal resources that correspond to at least two spatial receiving filters.
  • the multiple reference signal resources indicated by the third indication information may be used for beam diversity quality monitoring.
  • the multiple reference signal resources may correspond to at least two spatial receiving filters. Any one of the spatial receiving filters may correspond to one or more reference signal resources. If the terminal device reports in groups based on the spatial receiving filter, each group of measurement reports is measured based on a reference signal received by a spatial receiving filter.
  • the measurement report may be a measurement report reported based on the spatial receiving filter packet described in the method 200 above.
  • step 310 in method 300 is the same as step 280 in method 200 above. Since step 280 has been described in detail with reference to FIG. 2 above, for the sake of brevity, it will not be repeated here.
  • step 320 the network device sends a reference signal on the multiple reference signal resources.
  • the terminal device receives a reference signal on the multiple reference signal resources.
  • the plurality of reference signal resources indicated by the third indication information correspond to the plurality of spatial receiving filters on a one-to-one basis.
  • the multiple reference signal resources indicated by the third indication information may correspond to multiple spatial receiving filters.
  • I reference signal resources correspond to J spatial receiving filters, I> J> 1, and I and J are integers.
  • the multiple reference signal resources include a first resource group and a second resource group.
  • the second resource group includes L (L ⁇ J) reference signal resources corresponding to the J spatial receiving filters.
  • the first resource group includes IL reference signal resources corresponding to at least one of the three spatial receiving filters. Among them, only the beam quality monitoring results of the reference signal resources in the first resource group can be counted into the number of beam failures.
  • the reference signal resources in the first resource group can be the Beam-Failure- Q 0 in Detection-RS-ResourceConfig.
  • the method 300 further includes: Step 330: The network device sends fifth indication information, where the fifth indication information indicates a reference signal resource in the second resource group.
  • step 330 the terminal device receives the foregoing fifth instruction information.
  • step 330 in method 300 is the same as step 290 in method 200 above. Since step 290 has been described in detail in conjunction with FIG. 2 above, for the sake of brevity, it will not be repeated here.
  • the network device can configure the terminal device with reference signal resources corresponding to different receiving beams. Therefore, when the terminal device is tilted or flipped and the receiving quality of some receiving beams is degraded, other receiving beams can be used to evaluate the quality of the wireless link. . Thus, frequent failure recovery of beams can be avoided, which is beneficial to improving the robustness of the transmission system and to improving the user experience.
  • This application also provides a method for receiving and sending CSI, which is beneficial to improve the robustness of the system.
  • FIG. 4 is a schematic flowchart of a method for receiving and sending CSI according to another embodiment of the present application, which is shown from the perspective of device interaction. As shown, the method 400 shown in FIG. 4 includes steps 410 to 450. The method 400 is described in detail below with reference to FIG. 4.
  • the terminal device In step 410, the terminal device generates CSI, where the CSI includes one or more sets of measurement information, each set of measurement information is obtained based on multiple reference signal measurements that can be received simultaneously, and each set of measurement information includes at least a first indication bit, The first indication bit is used to indicate the number of spatial receiving filters that receive the multiple reference signals.
  • step 420 the terminal device sends the CSI.
  • step 420 the network device receives the CSI.
  • step 430 the network device determines whether multiple reference signals corresponding to each set of measurement information are received by the same spatial receiving filter according to the CSI.
  • the terminal device can measure based on multiple reference signals that can be received simultaneously, and report the results obtained based on the multiple reference signals that can be received simultaneously to the network device in the form of measurement information.
  • Each group of measurement information may correspond to multiple reference signal resources.
  • each group of measurement information may include identifiers of multiple reference signal resources, or each group of measurement information may include measurements obtained according to multiple predetermined reference signal resources.
  • RSRP reference signal resource
  • the measurement information may further include an indication bit for indicating the number of spatial receiving filters that receive the multiple reference signals, so that the network device learns whether the multiple reference signals corresponding to each set of measurement information can be composed of one or more spaces. Receive filter received. Therefore, it is beneficial for the network device to obtain more information about the correspondence between the receiving beam and the transmitting beam.
  • the network device may directly determine that multiple reference signal resources in the measurement information correspond to the same spatial reception.
  • the filter can also determine that the transmit beam corresponding to the multiple reference signal resources corresponds to a receive beam.
  • the method 400 further includes: step 440, the network device sends a reference signal, where the reference signal is used for channel measurement.
  • the terminal device receives a reference signal, which is used for channel measurement.
  • step 440 is the same as step 240 in method 200 described above. For brevity, details are not described herein again.
  • “can be received simultaneously” here means that the terminal device has the ability to receive multiple reference signals at the same time, and does not mean that the multiple reference signals must be received by the terminal device at the same time. Whether it can be received simultaneously is related to the capabilities of the terminal device.
  • the terminal device has the ability to receive through two receiving beams at the same time, which are called receiving beam # 1 and receiving beam # 2, and the transmitting beams # 1- # 8 of the network device are sent by polling.
  • receiving beam # 1 the channel quality of transmitting beam # 1 is the best
  • receiving beam # 2 the channel quality of transmitting beam # 6 is the best.
  • the terminal device can also receive at the same time. If the terminal equipment can only be received by one receiving beam at the same time, the transmitting beams # 1 and # 6 in the above example can be considered to be simultaneously received by the terminal equipment only when they are received by the same receiving beam.
  • a terminal device can report two reference signal resource identifiers, and the two reference signal resource identifiers can be received by the terminal device at the same time, but the prior art does not distinguish between these two reference signal resource identifiers. Received by the same spatial reception filter, or received by multiple spatial reception filters.
  • the terminal device may report in groups according to the measurement results of multiple reference signals that can be received at the same time, and further indicate the reported multiple signals that can be received at the same time through the first indication bit while reporting the measurement results. Whether the two reference signals are received by the same receiving beam at the same time or by multiple receiving beams at the same time.
  • multiple measurement results obtained based on multiple reference signal measurements that can be received simultaneously can be classified as a set of measurement information. .
  • each measurement result can include one or more of the following:
  • each reference signal received power information may be obtained by receiving a reference signal based on a reference signal resource indicated by an identifier of a reference signal resource and performing measurement.
  • the measurement result may include only the identifier of the reference signal resource, or only the reference signal received power information, or the identifier and reference of the reference signal resource.
  • the signal received power information may even include information other than the identification of the reference signal resource or the reference signal received power information.
  • a set of measurement information may further include a first indication bit, which is used to indicate whether multiple reference signals corresponding to the multiple measurement results in the set of measurement information are received by the same spatial receiving filter. .
  • the protocol may define a new report quantity in advance, and the report quantity may be indicated by a high-level parameter.
  • the protocol can further configure the format corresponding to the report through CSI reporting settings, such as "CRI-RSRP-nrofReceivedBeam”, or “CRI-nrofReceivedBeam”, or “RSRP-nrofReceivedBeam”, or "SSBRI-RSRP-nrofReceivedBeam”, or "SSBRI-RSRP-nrofReceivedBeam”, or SSBRI-nrofReceivedBeam "and so on.
  • CSI reporting settings such as "CRI-RSRP-nrofReceivedBeam", or "CRI-nrofReceivedBeam”, or “RSRP-nrofReceivedBeam”, or "SSBRI-RSRP-nrofReceivedBeam”, or SSBRI-nrofReceivedBeam "and so on.
  • CSI reporting settings
  • the terminal device may set the bit to "0" when reporting the CSI according to the actual measurement result, indicating that the reported reference signal resource identifier may be Received by a spatial receiving filter at the same time, otherwise set to "1" indicates that the reported reference signal resource identifier can be received by multiple spatial receiving filters at the same time.
  • the protocol defaults that when the first indication bit is set to "1", there is a one-to-one correspondence between the reported reference signal resource identifier and the spatial reception filter, for example, when two CRIs are reported The two CRIs are received by two spatial receiving filters simultaneously, which is also equivalent to the default terminal device having the capability of receiving through two spatial receiving filters at the same time.
  • the network device may determine the number of spatial receiving filters used by the terminal device to receive the multiple reference signals according to the first indication bit, and may further determine the reference signal resources in each set of measurement information and the spatial receiving filters of the terminal device.
  • the corresponding relationship that is, the pairing relationship between the transmission beam and the reception beam can be determined.
  • the network device may ignore the first indication bit in the CSI, or the terminal device may ignore the The reporting requirement of the first indication bit in the report quantity.
  • the terminal device can report one or more sets of measurement information in one CSI. This application does not limit this.
  • a terminal device may be configured with a radio frequency (RF) chain, and each radio frequency channel can only receive signals through one receiving beam at the same time. Therefore, regardless of whether the network device sends multiple transmit beams at the same time or polls multiple transmit beams, the terminal device is classified into a set of measurement information based on the measurement results of multiple reference signals that can be simultaneously received by one receive beam.
  • the CSI may include a set of measurement information, and reference signals corresponding to multiple measurement results in the set of measurement information are received by a same receiving beam.
  • the terminal device may be configured with multiple radio frequency channels. Because each radio frequency channel can only receive signals through one receiving beam at the same time, the multiple radio frequency channels can receive signals through multiple receiving beams at the same time. Assume that the terminal equipment is configured with radio frequency channels # 1 and # 2. Radio frequency channel # 1 can use the receiving beams # 1 to # 4 to receive signals in turn, and radio frequency channel # 2 can use the receiving beam # in turn. 5 to # 8 receive signals. When the network device sends multiple transmission beams, it is recorded as transmission beams # 1 to # 8, for example. At the same time, the RF channels # 1 and # 2 can use one receiving beam to receive signals, respectively.
  • receiving beams # 1 and # 5 can simultaneously receive transmitting beams # 2 and # 7
  • receiving beams # 2 and # 6 can simultaneously receive transmitting beams # 3 and # 5
  • receiving beams # 3 and # 7 can simultaneously receive
  • receive beams # 4 and # 8 can receive transmit beams # 3 and # 6 at the same time.
  • the CSI may include four sets of measurement information, each set of measurement information includes two measurement results, and the reference signals corresponding to the two measurement results in each set of measurement information are received by different two receiving beams.
  • the method 400 further includes: Step 450, the network device sends sixth indication information, where the sixth indication information is used to indicate a second reporting mode, and the second reporting mode is a packet based on a reference signal that can be received simultaneously. Escalation.
  • step 450 the terminal device receives the foregoing sixth instruction information.
  • the CSI reporting method may include packet reporting based on a spatial reception filter, may also include packet reporting based on a reference signal that can be simultaneously received, and may also include non-packet reporting. Therefore, the network device can indicate the reporting mode to the terminal device in advance.
  • the sixth instruction information used to indicate the second reporting mode may be carried in the RRC message.
  • it may be carried in the CSI reporting configuration carried in the RRC message, or it may be carried in the packet reporting parameters of the CSI reporting configuration.
  • the specific method for carrying the sixth indication information through the RRC message may be similar to the specific method for carrying the first indication information through the RRC message in step 270 in the method 200. For brevity, a detailed description of the specific method is omitted here.
  • the sixth indication information may be carried in one or more of the following: an RRC message, a MAC CE, and a DCI.
  • a specific method for carrying the sixth instruction information through different signaling may be similar to the specific method for carrying the first instruction information through different signaling in step 270 in the method 200. For the sake of brevity, a detailed description of the specific method is omitted here.
  • the terminal device when the terminal device reports the CSI based on the multiple reference signals received at the same time, the terminal device carries indication bits for indicating the number of spatial receiving filters that receive the multiple reference signals, so that the network device can obtain the reference signal resources and The corresponding relationship of the spatial receiving filter, that is, the pairing relationship between multiple receiving beams and transmitting beams can be obtained.
  • the TCI status list corresponding to a certain receiving beam is invalid due to the tilting or overturning of the terminal device, it can also switch to other receiving beams with better link quality, which can avoid frequent triggering of the beam failure recovery process. Therefore, the robustness of the beam pairing relationship is improved, which is conducive to improving the robustness of the transmission system, improving the transmission efficiency, and at the same time improving the user experience.
  • transmission beams corresponding to different reception beams can be selected to communicate with different terminal devices, which can avoid interference between multiple users to the greatest extent, that is, improve the interference resistance. Overall, system performance is improved.
  • the size of the sequence numbers of the processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. .
  • FIG. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • the communication device 500 may include a processing unit 510 and a transceiver unit 520.
  • the communication device 500 may correspond to the terminal device in the foregoing method embodiment.
  • the communication device 500 may be a terminal device or a chip configured in the terminal device.
  • the communication device 500 may correspond to the terminal device in the method 200, 300, or 400 according to the embodiment of the present application.
  • the communication device 500 may include a method for performing the method 200 in FIG. 2, the method 300 in FIG. 3, or Elements of the method performed by the terminal device in the method 400 in FIG. 4.
  • each unit in the communication device 500 and the other operations and / or functions described above are respectively used to implement a corresponding process of the method 200 in FIG. 2, the method 300 in FIG. 3, or the method 400 in FIG. 4.
  • the processing unit 510 may be used to perform step 210 in the method 200, and the transceiver unit 520 may be used to perform steps 220 and 240 to step 290 in the method 200.
  • the transceiver unit 510 may be used to execute steps 310 to 330 in the method 300.
  • the processing unit 510 may be used to execute step 410 in the method 400, and the transceiver unit 510 may be used to execute steps 420, 440, and 450 in the method 400.
  • the processing unit 510 may correspond to the processor 601 in the terminal device 600 shown in FIG. 6, and the transceiver unit 520 may correspond to the transceiver in the terminal device 600 shown in FIG. 602.
  • the communication device 500 may correspond to the network device in the foregoing method embodiment.
  • the communication device 500 may be a network device or a chip configured in the network device.
  • the communication device 500 may correspond to the network device in the method 200, 300, or 400 according to the embodiment of the present application.
  • the communication device 500 may include a method for performing the method 200 in FIG. 2, the method 300 in FIG. 3, or The elements of the method performed by the network device in the method 400 in FIG. 4.
  • each unit in the communication device 500 and the other operations and / or functions described above are respectively used to implement a corresponding process of the method 200 in FIG. 2, the method 300 in FIG. 3, or the method 400 in FIG. 4.
  • the transceiver unit 520 may be used to execute step 220 and steps 240 to 290 in the method 200, and the processing unit 510 may be used to execute step 230 in the method 200.
  • the transceiver unit 520 may be used to execute steps 310 to 330 in the method 300.
  • the transceiver unit 520 may be used to execute steps 420, 440, and 450 in the method 400, and the processing unit 510 may be used to execute step 430 in the method 400.
  • processing unit 510 in the communication device 500 may correspond to the processor 710 in the network device 700 shown in FIG. 7, and the transceiver unit 520 may correspond to the transceiver in the network device 700 shown in FIG. 7. 720.
  • FIG. 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application.
  • the terminal device 600 includes a processor 601 and a transceiver 602.
  • the terminal device 500 further includes a memory 603.
  • the processor 601, the transceiver 602, and the memory 603 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • the memory 603 is used to store a computer program
  • the processor 601 is used to store the computer program from the memory 603.
  • the computer program is called and executed to control the transceiver 602 to send and receive signals.
  • the terminal device 500 may further include an antenna 504 for sending uplink data or uplink control signaling output by the transceiver 602 through a wireless signal.
  • the processor 601 and the memory 603 may be combined into a processing device, and the processor 601 is configured to execute program codes stored in the memory 603 to implement the foregoing functions. It should be understood that the processing devices shown in the figures are merely examples. In specific implementation, the memory 603 may also be integrated in the processor 601 or independent of the processor 601. This application does not limit this.
  • the above-mentioned terminal device 600 further includes an antenna 610 for sending uplink data or uplink control signaling output by the transceiver 602 through a wireless signal.
  • the processor 601 When the program instructions stored in the memory 603 are executed by the processor 601, the processor 601 is configured to generate one or more CSIs, and control the transceiver 602 to send one or more CSIs.
  • Each CSI includes one or more sets of measurement reports, and each set of measurement reports is obtained based on a reference signal measurement received by a spatial receiving filter, and each group of measurements is performed when the total number of measurement reports is multiple.
  • the spatial receiving filters corresponding to the report are different from each other.
  • the terminal device 600 may correspond to the terminal device in the method 200, 300, or 400 according to the embodiment of the present application, and the terminal device 600 may include a method for performing the method 200 in FIG. 2, the method 300 in FIG. 3, or Elements of the method performed by the terminal device in the method 400 in FIG. 4.
  • each unit in the terminal device 600 and the other operations and / or functions described above respectively implement the corresponding processes of the method 200 in FIG. 2, the method 300 in FIG. 3, or the method 400 in FIG. 4.
  • the foregoing processor 601 may be used to execute the actions implemented in the terminal device described in the foregoing method embodiment, and the transceiver 602 may be used to execute the terminal device described in the foregoing method embodiment that is sent to or received from the network device by the terminal device. action.
  • the transceiver 602 may be used to execute the terminal device described in the foregoing method embodiment that is sent to or received from the network device by the terminal device. action.
  • the above-mentioned terminal device 600 may further include a power source 605 for supplying power to various devices or circuits in the terminal device.
  • the terminal device 600 may further include one or more of an input unit 606, a display unit 607, an audio circuit 608, a camera 609, and a sensor 622, and the audio circuit It may also include a speaker 6082, a microphone 6084, and the like.
  • FIG. 7 is a schematic structural diagram of a network device 700 according to an embodiment of the present application.
  • the network device 700 includes a processor 710 and a transceiver 720.
  • the network device 700 further includes a memory 730.
  • the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path to transfer control and / or data signals.
  • the memory 730 is used to store a computer program, and the processor 710 is used to call from the memory 730.
  • the computer program is run to control the transceiver 720 to send and receive signals.
  • the processor 710 and the memory 730 may be combined into a processing device, and the processor 710 is configured to execute program codes stored in the memory 730 to implement the foregoing functions.
  • the memory 730 may also be integrated in the processor 710 or independent of the processor 710.
  • the above-mentioned network device 700 may further include an antenna 740 for sending downlink data or downlink control signaling output by the transceiver 720 through a wireless signal.
  • the processor 710 When the program instructions stored in the memory 730 are executed by the processor 710, the processor 710 is used to control the transceiver 720 to receive one or more CSIs, and is used to determine that each set of measurement reports corresponds to one space reception according to the one or more CSIs Filters, and when multiple sets of measurement reports are received, the spatial receiving filters corresponding to each set of measurement reports are different from each other.
  • the network device 700 may correspond to the network device in the method 200, 300, or 400 according to the embodiment of the present application, and the network device 700 may include a method for performing the method 200 in FIG. 2, the method 300 in FIG. 3, or The elements of the method performed by the network device in the method 400 in FIG. 4.
  • each unit in the network device 700 and the other operations and / or functions described above respectively implement the corresponding processes of the method 200 in FIG. 2, the method 300 in FIG. 3, or the method 400 in FIG. 4, and each unit executes the corresponding operations.
  • the specific process of the steps has been described in detail in the foregoing method embodiments, and for the sake of brevity, they are not repeated here.
  • the foregoing processor 710 may be configured to perform the actions implemented by the network device described in the foregoing method embodiment, and the transceiver 720 may be configured to execute the network device described in the foregoing method embodiment to send or receive from the terminal device to the terminal device. action.
  • the transceiver 720 may be configured to execute the network device described in the foregoing method embodiment to send or receive from the terminal device to the terminal device. action.
  • processors in the embodiment of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and application-specific integrated circuits.
  • DSPs digital signal processors
  • application-specific integrated circuits application specific integrated circuit, ASIC
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • other programmable logic devices discrete gate or transistor logic devices, discrete hardware components, etc.
  • 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), and an electrically erasable programmable ROM.
  • ROM read-only memory
  • PROM programmable read-only memory
  • EPROM erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • electrically erasable programmable ROM electrically erasable programmable ROM.
  • Read memory electrically EPROM, EEPROM
  • 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 Fetch memory
  • direct RAMbus RAM direct RAMbus RAM, DR RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer executes FIG. 2, FIG. 3, or The method in the embodiment shown in FIG. 4.
  • the present application further provides a computer-readable medium, where the computer-readable medium stores program code, and when the program code runs on the computer, the computer executes FIG. 2, FIG. 3, or The method in the embodiment shown in FIG. 4.
  • the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.
  • 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.
  • 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 digital versatile disc (DVD)), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • 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.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • 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 (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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Abstract

La présente invention concerne un procédé et un dispositif de communication permettant d'émettre et de recevoir des informations d'état de canal (CSI). Le procédé comprend les étapes suivantes : un dispositif terminal génère et envoie un ou plusieurs éléments de CSI à un dispositif de réseau, chaque CSI comprenant un ou plusieurs groupes de rapports de mesure, chaque groupe de rapports de mesure étant mesuré sur la base de signaux de référence reçus par un filtre de réception spatial, et lorsque le nombre total de groupes de rapports de mesure équivaut à une pluralité de groupes, les filtres de réception spatiale correspondant à chaque groupe de rapports de mesure sont différents les uns des autres. Comme le dispositif terminal peut rapporter un rapport de mesure sur la base de différents filtres de réception spatiale, le dispositif de réseau peut obtenir davantage d'informations concernant la correspondance entre un faisceau d'émission et un faisceau de réception, et peut ainsi mieux gérer les faisceaux, ce qui permet d'améliorer les performances du système. Lorsque le dispositif terminal rapporte un rapport de mesure sur la base d'une pluralité de filtres de réception spatiaux, le dispositif de réseau peut obtenir davantage de correspondances entre le faisceau d'émission et le faisceau de réception, ce qui améliore la robustesse de la relation de correspondance de faisceaux et améliore la contre-interférence.
PCT/CN2019/093497 2018-06-29 2019-06-28 Procédé et dispositif de communication pour émettre et recevoir des informations d'état de canal WO2020001577A1 (fr)

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