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EP-4738910-A1 - UPLINK COMMUNICATION METHOD AND APPARATUS, AND COMMUNICATION DEVICE, COMMUNICATION SYSTEM AND STORAGE MEDIUM

EP4738910A1EP 4738910 A1EP4738910 A1EP 4738910A1EP-4738910-A1

Abstract

Disclosed in the embodiments of the present disclosure are an uplink communication method and apparatus. The method comprises: receiving first information, which is sent by a network device, wherein the first information is used for configuring a terminal to perform channel state information (CSI) measurement and beam reporting; and sending second information to the network device on the basis of the first information, wherein the second information is used for indicating a plurality of beams, the second information is used by the network device to determine at least one beam pair from among the plurality of beams, the at least one beam pair is used for supporting uplink multi-panel and/or multi-transmission-and-reception-point (TRPs) transmission. Therefore, coordinated multiple point transmission under more scenarios can be supported, thereby effectively improving the uplink transmission throughput and the communication efficiency of a system, and improving the reliability of the transmission.

Inventors

  • GAO, XUEYUAN

Assignees

  • Beijing Xiaomi Mobile Software Co., Ltd.

Dates

Publication Date
20260506
Application Date
20230630

Claims (20)

  1. An uplink communication method, performed by a terminal, comprising: receiving first information sent by a network device, wherein the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; and sending second information to the network device based on the first information, wherein the second information indicates a plurality of beams, the second information is configured for the network device to determine at least one beam pair from the plurality of beams, and the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission.
  2. The method according to claim 1, wherein each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission, or for uplink multi-panel single-TRP simultaneous transmission.
  3. The method according to claim 1 or 2, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission of the terminal, and each beam pair of the at least one beam pair is further configured for the terminal to simultaneously receive downlink channels or signals sent by a plurality of TRPs, wherein each beam of each beam pair of the at least one beam pair corresponds to a different TRP, or each beam of each beam pair of the at least one beam pair corresponds to a different quasi-co-location (QCL) relationship.
  4. The method according to claim 1 or 2, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, and each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission of the terminal, wherein each beam of each beam pair of the at least one beam pair corresponds to a different TRP, or each beam of each beam pair of the at least one beam pair corresponds to a different QCL relationship.
  5. The method according to claim 1 or 2, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on non-grouped downlink beams; and the second information indicates the plurality of beams, and any two beams of the plurality of beams are configured for uplink multi-TRP non-simultaneous transmission of the terminal, wherein each beam of the any two beams corresponds to a different TRP, or each beam of the any two beams corresponds to a different QCL relationship.
  6. The method according to claim 1 or 2, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, each beam pair of the at least one beam pair is configured for uplink multi-panel single-TRP simultaneous transmission of the terminal, and each beam pair of the at least one beam pair is further configured for the terminal to simultaneously receive downlink channels or signals sent by a plurality of TRPs, wherein each beam of each beam pair of the at least one beam pair corresponds to a same TRP.
  7. The method according to claim 1 or 2, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, and each beam pair of the at least one beam pair is configured for uplink multi-panel single-TRP simultaneous transmission of the terminal, wherein each beam of each beam pair of the at least one beam pair corresponds to a same TRP.
  8. The method according to any one of claims 1-7, wherein the first information further indicates a numeric count of the plurality of beams indicated by the second information.
  9. The method according to any one of claims 1-8, wherein the second information comprises at least one of the following information: at least one channel state information reference signal resource indicator (CRI) indicating the beam; at least one synchronization signal and physical broadcast channel block resource indicator (SSBRI) indicating the beam; a reference signal receiving power (RSRP) corresponding to each beam; or a signal to interference plus noise ratio (SINR) corresponding to each beam.
  10. The method according to claim 9, wherein the second information further comprises third information, and the third information indicates capability information of a panel of at least one terminal.
  11. The method according to any one of claims 1-10, further comprising: sending fourth information to the network device, wherein the fourth information indicates CSI measurement and beam reporting supported by the terminal, and the fourth information is configured for the network device to determine the first information.
  12. An uplink communication method, performed by a network device, comprising: sending first information to a terminal, wherein the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; receiving second information sent by the terminal, wherein the second information is sent by the terminal based on the first information, and the second information indicates a plurality of beams; and determining at least one beam pair from the plurality of beams based on the second information, wherein the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission.
  13. The method according to claim 12, wherein each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission, or for uplink multi-panel single-TRP simultaneous transmission.
  14. The method according to claim 12 or 13, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; the second information indicates the at least one beam pair, each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission of the terminal, and each beam pair of the at least one beam pair is further configured for the terminal to simultaneously receive downlink channels or signals sent by a plurality of TRPs, wherein each beam of each beam pair of the at least one beam pair corresponds to a different TRP, or each beam of each beam pair of the at least one beam pair corresponds to a different quasi-co-location (QCL) relationship.
  15. The method according to claim 12 or 13, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, and each beam pair of the at least one beam pair is configured for uplink non-simultaneous transmission of the terminal, wherein each beam of each beam pair of the at least one beam pair corresponds to a different TRP, or each beam of each beam pair of the at least one beam pair corresponds to a different QCL relationship.
  16. The method according to claim 12 or 13, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on non-grouped downlink beams; and the second information indicates the plurality of beams, and any two beams of the plurality of beams are configured for uplink multi-TRP non-simultaneous transmission of the terminal, wherein each beam of the any two beams corresponds to a different TRP, or each beam of the any two beams corresponds to a different QCL relationship.
  17. The method according to claim 12 or 13, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; the second information indicates the at least one beam pair, each beam pair of the at least one beam pair is configured for uplink multi-panel single-TRP simultaneous transmission of the terminal, and each beam pair of the at least one beam pair is further configured for the terminal to simultaneously receive downlink channels or signals sent by a plurality of TRPs, wherein each beam of each beam pair of the at least one beam pair corresponds to a same TRP.
  18. The method according to claim 12 or 13, wherein the first information is used to configure the terminal to perform the CSI measurement and beam reporting based on grouped downlink beams; and the second information indicates the at least one beam pair, and each beam pair of the at least one beam pair is configured for uplink multi-panel single-TRP simultaneous transmission of the terminal, wherein each beam of each beam pair of the at least one beam pair corresponds to a same TRP.
  19. The method according to any one of claims 12-18, wherein the first information further indicates a numeric count of the plurality of beams indicated by the second information.
  20. The method according to any one of claims 12-19, wherein the second information comprises at least one of the following information: at least one channel state information reference signal resource indicator (CRI) indicating the beam; at least one synchronization signal and physical broadcast channel block resource indicator (SSBRI) indicating the beam; a reference signal receiving power (RSRP) corresponding to each beam; or a signal to interference plus noise ratio (SINR) corresponding to each beam.

Description

FIELD The present disclosure relates to the field of communication technologies, and more particularly to an uplink communication method and device, a communication device, a communication system and a storage medium. BACKGROUND In order to improve coverage of a cell edge and provide a more balanced service quality in a service area, a coordinated multiple point transmission (CoMP) technology is still an important technical means in a new radio (NR) system. For example, cooperation among multiple transmission and reception points (TRPs) or panels may be used for transmission/reception via multiple beams from multiple angles. In the related art, transmission enhancement based on multi-panel terminals and/or multiple TRPs is considered for a physical uplink shared channel (PUSCH)/physical uplink control channel (PUCCH). SUMMARY Embodiments of a first aspect of the present disclosure provides an uplink communication method, which is performed by a terminal, and includes: receiving first information sent by a network device, where the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; and sending second information to the network device based on the first information. The second information indicates a plurality of beams, the second information is configured for the network device to determine at least one beam pair from the plurality of beams, and the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission. Embodiments of a second aspect of the present disclosure provides an uplink communication method, which is performed by a network device, and includes: sending first information to a terminal, where the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; receiving second information sent by the terminal, where the second information is sent by the terminal based on the first information, and the second information indicates a plurality of beams; and determining at least one beam pair from the plurality of beams based on the second information, where the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission. Embodiments of a third aspect of the present disclosure proposes a terminal, which includes: a transceiver module configured to: receive first information sent by a network device, where the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; and send second information to the network device based on the first information. The second information indicates a plurality of beams, the second information is configured for the network device to determine at least one beam pair from the plurality of beams, and the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission. Embodiments of a fourth aspect of the present disclosure proposes a network device, which includes: a transceiver module configured to: send first information to a terminal, where the first information is used to configure the terminal to perform channel state information (CSI) measurement and beam reporting; and receive second information sent by the terminal, where the second information is sent by the terminal based on the first information, and the second information indicates a plurality of beams; and a processing module configured to determine at least one beam pair from the plurality of beams based on the second information, where the at least one beam pair is configured to support uplink multi-panel and/or multi-transmission and reception point (TRP) transmission. According to the scheme proposed by the embodiments of the present disclosure, the first information sent by the network device is received, the first information is used to configure the terminal to perform the CSI measurement and beam reporting, and based on the first information, the second information is sent to the network device. The second information indicates the plurality of beams, and the second information is configured for the network device to determine the at least one beam pair from the plurality of beams. The at least one beam pair is configured to support the uplink multi-panel and/or multi-transmission and reception point (TRP) transmission, which may support coordinated multiple point transmission in more scenarios, thus effectively improving the uplink transmission throughput and communication efficiency of the system and improving the transmission reliability. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly explain the technical scheme in embodiments of the present disclosure or in the related art, the drawings needed in the embodiments of the present disclosure or in the related art will be explai