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CN-115567173-B - Information determination method, device and terminal

CN115567173BCN 115567173 BCN115567173 BCN 115567173BCN-115567173-B

Abstract

The application discloses an information determining method, a device and a terminal, which belong to the technical field of communication, and the method comprises the steps that the terminal receives a first command, wherein the first command is used for activating or indicating or updating public beam information, the terminal receives a second command, the second command is used for activating or indicating or updating first beam information, the first beam information is beam information of a control resource set CORESET #0, and the terminal determines parameter information of a public search space of CORESET #0 on a carrier unit CC or a bandwidth part BWP configured with CORESET #0 or determines beam information used by a channel or a reference signal scheduled by downlink control information on CORESET #0 according to the public beam information or the first beam information.

Inventors

  • YANG YU

Assignees

  • 维沃移动通信有限公司

Dates

Publication Date
20260505
Application Date
20210702

Claims (20)

  1. 1. An information determination method, comprising: The terminal receives a first command, wherein the first command is used for activating, indicating or updating public beam information; The terminal receives a second command, wherein the second command is used for activating or indicating or updating first beam information, and the first beam information is beam information of a control resource set CORESET #0; the terminal determines parameter information of common search space CORESET #0 on carrier unit CC or bandwidth part BWP configured with CORESET #0 according to the first beam information, or And the terminal determines the beam information used by a downlink control information scheduling channel or a reference signal on CORESET #0 according to the public beam information, wherein the downlink control information scheduling channel comprises at least one of a physical downlink shared channel PDSCH special for the terminal, a physical uplink control channel PUCCH special for the terminal and a physical uplink shared channel PUSCH special for the terminal.
  2. 2. The method of claim 1, wherein the common beam information comprises a common transmission configuration indication, TCI, status identification, the common TCI status identification being applied to at least one channel or reference signal on a set of CCs or BWPs; The first beam information includes a first TCI state identification applied to CORESET #0 on a set of CCs or BWP.
  3. 3. The method according to claim 2, wherein the determining, by the terminal, parameter information of the common search space of CORESET #0 on the carrier element CC or the bandwidth part BWP configured with CORESET #0 according to the first beam information includes: The terminal determines a reference signal of a quasi co-located QCL type D of CORESET #0 on a CC or BWP configured with CORESET #0 according to the first TCI state identifier; The terminal determines a first reference signal according to the determined reference signal of the QCL type D; And the terminal determines parameter information of the common search space CORESET #0 on the CC or BWP configured with CORESET #0 according to the first reference signal or the synchronous signal block SSB associated with the first reference signal.
  4. 4. The method of claim 3, wherein the determining, by the terminal, the first reference signal based on the determined reference signal of QCL type D comprises: In the case that the reference signals of the QCL type D determined by the terminal comprise the reference signals of the QCL type D of each CC or BWP configured with CORESET #0 of CORESET #0, determining the same reference signals associated with the reference signals of the QCL type D as the first reference signals; Or alternatively In case that the reference signal of the QCL type D determined by the terminal includes the reference signal of the common QCL type D of all CORESET #0 on the CC or BWP configured with CORESET #0, determining the reference signal of the common QCL type D as the first reference signal.
  5. 5. The method of claim 3, wherein the determining, by the terminal, the first reference signal based on the determined reference signal of QCL type D comprises: And in the case that the reference signal of the QCL type D determined by the terminal is not SSB, determining the reference signal of the QCL type A as the first reference signal.
  6. 6. The method of claim 3, wherein the reference signal of QCL type D comprises at least one of: a synchronization signal block SSB; Channel state information reference signal CSI-RS; tracking a reference signal TRS; the sounding reference signal SRS.
  7. 7. The method of claim 4, wherein the same reference signals associated with the reference signals of each QCL type D comprise: one of the reference signals of the QCL type D of CORESET #0 on each CC or BWP of CORESET #0 is configured; Or alternatively QCL type D reference signals of the QCL type D reference signals of each of CORESET #0 on each CC or BWP of CORESET #0 are configured.
  8. 8. The method of claim 4, wherein the first reference signal is configured on a first reference CC or a first reference BWP in a corresponding set of CCs or BWPs of a common TCI state identification; Or alternatively The first reference signal is configured on a second reference CC or a second reference BWP in a corresponding set of CCs or BWPs of the first TCI state identification; Or alternatively The first reference signal is configured on a third reference CC or a third reference BWP configured with a CC or BWP of CORESET # 0.
  9. 9. The method of claim 1, wherein the parameter information of the common search space of CORESET #0 on the CC or BWP comprises at least one of: Monitoring the opportunity information; Time domain resource information; frequency domain resource information; Spatial parameter information; QCL information.
  10. 10. The method of claim 1 wherein the determining, by the terminal, beam information used by the reference signal or the channel scheduled by the downlink control information on CORESET #0 according to the common beam information includes: And when the first beam information is the same as the common beam information and the time interval between the downlink control information on CORESET #0 and the channel or the reference signal scheduled by the downlink control information is smaller than a preset threshold, determining the beam information used by the channel or the reference signal includes at least one of the following: the previous public beam information of the public beam information indicated by the first command; on the activated BWP of the cell where the channel or the reference signal is located, the terminal listens to the beam information of CORESET with the smallest ID in the most recent slot of CORESET; On the activated BWP of the cell where the channel or the reference signal is located, the terminal monitors CORESET beam information with the minimum ID in CORESET; on the reference CC or the reference BWP, the terminal listens to the beam information of CORESET having the smallest ID in the latest slot of CORESET; on the reference CC or the reference BWP, the terminal listens to the beam information of CORESET with the smallest ID in CORESET; Scheduling beam information of CORESET #0 where downlink control information of the channel or the reference signal is located; the activated BWP of the cell where the channel or the reference signal is located is applied to the activated beam information of the corresponding minimum code point in the activated beam information of the channel or the reference signal; On the reference CC or the reference BWP, the active beam information of the corresponding minimum code point in the active beam information applied to the channel or the reference signal; Wherein the reference CC or the reference BWP comprises a CC or a BWP in a set of CCs or BWP corresponding to the common beam information, or a CC or BWP in a set of CCs or BWP corresponding to the first beam information, or a CC or BWP configured with CORESET # 0.
  11. 11. The method of claim 1 wherein the determining, by the terminal, beam information used by the reference signal or the channel scheduled by the downlink control information on CORESET #0 according to the common beam information includes: And determining that the beam information used by the channel or the reference signal comprises at least one of the following items when the first beam information is different from the common beam information and the time interval between the downlink control information on CORESET #0 and the channel or the reference signal scheduled by the downlink control information is smaller than a preset threshold: the previous public beam information of the public beam information indicated by the first command; CORESET #0, one beam information used before the first beam information; Beam information indicated when the downlink control information on CORESET #0 most recently scheduled the channel or the reference signal; Among the previous common beam information of the common beam information indicated by the first command and the first beam information of CORESET #0, the beam information having a smaller time interval from the transmission time of the channel or the reference signal; Among the previous public beam information of the public beam information indicated by the first command and the beam information indicated by the downlink control information on CORESET #0 when the channel or the reference signal is scheduled last time, the beam information with smaller time interval with the transmission time of the channel or the reference signal; on the activated BWP of the cell where the channel or the reference signal is located, the terminal listens to the beam information of CORESET with the smallest ID in the most recent slot of CORESET; On the activated BWP of the cell where the channel or the reference signal is located, the terminal monitors CORESET beam information with the minimum ID in CORESET; on the reference CC or the reference BWP, the terminal listens to the beam information of CORESET having the smallest ID in the latest slot of CORESET; on the reference CC or the reference BWP, the terminal listens to the beam information of CORESET with the smallest ID in CORESET; the activated BWP of the cell where the channel or the reference signal is located is applied to the activated beam information of the corresponding minimum code point in the activated beam information of the channel or the reference signal; On the reference CC or the reference BWP, the active beam information of the corresponding minimum code point in the active beam information applied to the channel or the reference signal; Wherein the reference CC or the reference BWP comprises a CC or a BWP in a set of CCs or BWP corresponding to the common beam information, or a CC or BWP in a set of CCs or BWP corresponding to the first beam information, or a CC or BWP configured with CORESET # 0.
  12. 12. The method of claim 11, wherein CORESET of the terminal listening comprises: a terminal monitored special CORESET; Or alternatively Non-terminal specific CORESET for terminal listening.
  13. 13. The method of claim 10 or 11, wherein CORESET with the smallest ID corresponds to the same CORESET Chi Suoyin as CORESET #0; And/or the number of the groups of groups, The active beam information applied to the channel or reference signal corresponds to the same CORESET pool index as CORESET # 0.
  14. 14. The method of claim 10 or 11, wherein the active beam information corresponding to the minimum code point comprises beam information corresponding to the minimum TCI code point of TCI code points corresponding to a plurality of different beam information among active beam information of a channel or reference signal.
  15. 15. The method according to claim 10 or 11, wherein the channel or reference signal comprises at least one of: A Physical Downlink Shared Channel (PDSCH) special for a non-terminal; PDSCH dedicated for terminal; CORESET # 0-associated PDSCH; PDSCH scheduled by downlink control information on CORESET # 0; a Physical Uplink Shared Channel (PUSCH) special for a non-terminal; terminal-specific PUSCH; CORESET # 0-associated PUSCH; PUSCH scheduled for downlink control information on CORESET # 0.
  16. 16. An information determining apparatus, comprising: The first receiving module is used for receiving a first command, wherein the first command is used for activating or indicating or updating the public beam information; The second receiving module is configured to receive a second command, where the second command is used to activate, instruct, or update first beam information, where the first beam information is beam information of control resource set CORESET #0; A determining module, configured to determine, according to the first beam information, parameter information of a common search space of CORESET #0 on a carrier unit CC or a bandwidth part BWP configured with CORESET #0, or determine, according to the common beam information, beam information used by a channel or a reference signal scheduled by downlink control information on CORESET #0, where the channel scheduled by downlink control information includes at least one of a physical downlink shared channel PDSCH dedicated for a terminal, a physical uplink control channel PUCCH dedicated for the terminal, and a physical uplink shared channel PUSCH dedicated for the terminal.
  17. 17. The apparatus of claim 16, wherein the common beam information comprises a common transmission configuration indication, TCI, status identification, the common TCI status identification applied to at least one channel or reference signal on a set of CCs or BWPs; The first beam information includes a first TCI state identification applied to CORESET #0 on a set of CCs or BWP.
  18. 18. The apparatus of claim 17, wherein the means for determining comprises: A first determining submodule, configured to determine, according to the first TCI state identifier, a reference signal of a quasi co-located QCL type D of CORESET #0 on a CC or BWP configured with CORESET #0; The second determining submodule is used for determining a first reference signal according to the determined reference signal of the QCL type D; And a third determining submodule, configured to determine parameter information of a common search space of CORESET #0 on CC or BWP configured with CORESET #0 according to the first reference signal or a synchronization signal block SSB associated with the first reference signal.
  19. 19. The apparatus of claim 18, wherein the second determination submodule comprises: A third determining unit, configured to determine, in a case where the reference signals of QCL type D determined by the terminal include the reference signals of QCL type D of CORESET #0 on each CC or BWP of CORESET #0 configured, that the same reference signal associated with the reference signal of each QCL type D is the first reference signal; Or alternatively A fourth determining unit, configured to determine, in a case where the reference signal of the QCL type D determined by the terminal includes reference signals of common QCL type D of all CORESET #0 on the CC or BWP configured with CORESET #0, that the reference signal of the common QCL type D is the first reference signal.
  20. 20. The apparatus of claim 18, wherein the second determination submodule comprises: And a fifth determining unit, configured to determine, when the reference signal of the QCL type D determined by the terminal is not SSB, that the reference signal of the QCL type a is the first reference signal.

Description

Information determination method, device and terminal Technical Field The application belongs to the technical field of communication, and particularly relates to an information determining method, an information determining device and a terminal. Background The current technology introduces a new transmission configuration indication (Transmission Configuration Indication, TCI) structure that uses the same beam for multiple channels, which may be referred to as a common beam. The network indicates that beam may be used for multiple channel transmission using a medium access control layer control unit (MEDIA ACCESS Control Control Element, MAC CE) or downlink control information (Downlink Control Information, DCI). The control resource set CORESET (i.e., CORESET # 0) with ID 0 is configured by the physical broadcast channel (Physical Broadcast Channel, PBCH) (configured by the master information block (Master Information Block, MIB)) for the terminal to receive the system information (System Information, SI). For broadcast physical downlink control channel (Physical Downlink Control Channel, PDCCH), the terminal determines which Synchronization signal/physical broadcast channel signal block (SSB) corresponds to a common search space (common SEARCH SPACE) to receive. For a unicast physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH), it may be scheduled by DCI associated with CORESET # 0. In a carrier aggregation (Carrier Aggregation, CA) scenario, for a set of carrier elements (Component Carrier, CC) or Bandwidth parts (BWP), the network may indicate a common TCI STATE ID, which common TCI state ID is used to determine common quasi co-sited information of at least terminal-specific PDCCHs or PDSCHs and/or to determine common uplink transmit spatial filter (SPATIAL FILTER) information of at least terminal-specific PUCCHs or PUSCHs. Wherein a source reference signal (source RS) in the common TCI STATE ID indicated for the target CC may be configured on the target CC or other CCs. For the source reference signal in common TCI STATE ID, there are the following features: (A) One source RS in common TCI STATE ID is cross-CC, i.e., for all target CCs; (B) The source RS in common TCI STATE ID is based on each CC, and the respective CC-specific source RS is further associated to an RS of the same quasi-co-located QCL-TypeD. Since CORESET #0 belongs to CORESET which is not terminal-specific (non-UE-specific or non-UE-specific), it has not been determined whether or not the TCI state is used for CORESET #0 in the current technology. Therefore, the prior art has the following problems: When common beam is not used for CORESET #0, it is not clear how to determine beam information of a DCI scheduled channel or reference signal on CORESET #0. In the CA scenario, however, if the source RS in the above-mentioned common TCI STATE ID is applied, it is not clear how to determine the relevant information of CORESET #0 on a certain CC. Disclosure of Invention The embodiment of the application provides an information determining method, an information determining device and a terminal, which can solve the problem of how to determine beam information of a PDSCH (physical downlink shared channel) scheduled by DCI (physical downlink shared channel) on CORESET #0 or how to determine relevant information of CORESET #0 on a certain CC (common carrier) in a CA (CA) scene in the prior art. In a first aspect, there is provided an information determining method, including: The terminal receives a first command, wherein the first command is used for activating, indicating or updating public beam information; The terminal receives a second command, wherein the second command is used for activating or indicating or updating first beam information, and the first beam information is beam information of a control resource set CORESET #0; The terminal determines parameter information of the common search space of CORESET #0 on carrier element CC or bandwidth part BWP configured with CORESET #0 or determines beam information used by a channel or reference signal scheduled by downlink control information on CORESET #0 according to the common beam information or the first beam information. In a second aspect, there is provided an information determining apparatus including: The first receiving module is used for receiving a first command, wherein the first command is used for activating or indicating or updating the public beam information; The second receiving module is configured to receive a second command, where the second command is used to activate, instruct, or update first beam information, where the first beam information is beam information of control resource set CORESET #0; a determining module, configured to determine parameter information of the common search space of CORESET #0 on the carrier unit CC or the bandwidth part BWP configured with CORESET #0 or determine beam information used by a channel or a referenc