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US-20260129596-A1 - WIRELESS COMMUNICATION METHOD, TERMINAL DEVICE, AND NETWORK DEVICE

US20260129596A1US 20260129596 A1US20260129596 A1US 20260129596A1US-20260129596-A1

Abstract

Disclosed are a wireless communication method, a terminal device, and a network device. One example method includes: receiving, by a terminal device, first information from a network device, wherein the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks (SSBs).

Inventors

  • Zheng Zhao
  • Ling LYU

Assignees

  • QUECTEL WIRELESS SOLUTIONS CO., LTD.

Dates

Publication Date
20260507
Application Date
20251231

Claims (20)

  1. 1 . A wireless communication method, comprising: receiving, by a terminal device, first information from a network device, wherein the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks (SSBs).
  2. 2 . The method according to claim 1 , wherein the first information is received during a cell configuration of the terminal device, and the cell configuration comprises one or more of the following: cell access, cell handover, or adding a secondary cell.
  3. 3 . The method according to claim 1 , wherein the plurality of periodicity configurations are associated with the terminal device, and wherein the first information is carried in: radio resource control (RRC) signalling; or broadcast signalling; or multicast signalling.
  4. 4 . The method according to claim 1 , wherein a periodicity for receiving an SSB is the same as a periodicity for transmitting an SSB by the network device; or there is an integral multiple relationship between a periodicity for receiving an SSB and a periodicity for transmitting an SSB by the network device.
  5. 5 . The method according to claim 1 , wherein the first information indicates a number of periodicities of continuous reception of SSBs.
  6. 6 . The method according to claim 1 , wherein each of the plurality of periodicity configurations comprises one or more periodicities.
  7. 7 . The method according to claim 1 , wherein the plurality of periodicity configurations are associated with different SSB bursts; or the plurality of periodicity configurations are associated with different SSB index groups.
  8. 8 . The method according to claim 7 , wherein periodicities in the periodicity configurations associated with the different SSB index groups are different.
  9. 9 . The method according to claim 1 , wherein different periodicity configurations in the plurality of periodicity configurations comprise periodicities having an integral multiple relationship; or a same periodicity configuration in the plurality of periodicity configurations comprises periodicities having an integral multiple relationship.
  10. 10 . The method according to claim 1 , wherein the method further comprises: receiving, by the terminal device, second information from the network device, wherein the second information indicates a target periodicity to be activated in a plurality of periodicities, and the plurality of periodicities are periodicities in different periodicity configurations, or are different periodicities in a same periodicity configuration.
  11. 11 . The method according to claim 10 , wherein the second information is received during a cell configuration of the terminal device, and the cell configuration comprises one or more of the following: cell access, cell handover, or adding a secondary cell.
  12. 12 . The method according to claim 10 , wherein the target periodicity is associated with the terminal device.
  13. 13 . The method according to claim 1 , wherein the method further comprises: receiving, by the terminal device, third information from the network device, wherein the third information is used to instruct adjustment of a periodicity for receiving an SSB, wherein a periodicity obtained after the adjustment and the periodicity before the adjustment are periodicities in different periodicity configurations, or are different periodicities in a same periodicity configuration.
  14. 14 . The method according to claim 13 , wherein the third information is carried in: a medium access control control element (MAC CE); or physical layer signalling.
  15. 15 . The method according to claim 13 , wherein the method further comprises: receiving, by the terminal device since a first instant after receiving the third information, an SSB based on the periodicity obtained after the adjustment.
  16. 16 . The method according to claim 15 , wherein a time interval between the first instant and the third information is pre-agreed; or a time interval between the first instant and the third information is equal to the periodicity obtained after the adjustment; or a time interval between the first instant and a last SSB transmitted before the third information is equal to the periodicity obtained after the adjustment; or a time interval between the first instant and a first SSB transmitted after the third information is equal to the periodicity obtained after the adjustment; or the first instant is located after a first time interval since the third information, and a time interval between the first instant and a last SSB transmitted before an end instant of the first time interval is equal to an integer multiple of the periodicity obtained after the adjustment; or the first instant is a 1 st instant after the third information among a plurality of periodic candidate instants, and a periodicity of the plurality of periodic candidate instants is the periodicity obtained after the adjustment.
  17. 17 . The method according to claim 16 , wherein locations of the plurality of candidate instants are determined based on a location of a reference instant in the plurality of candidate instants, and the reference instant is pre-agreed.
  18. 18 . The method according to claim 16 , wherein when there is SSB transmission in a second time interval since the third information, a time interval between the first instant and a last SSB transmitted in the second time interval is equal to an integer multiple of the periodicity obtained after the adjustment, and the first instant is a 1 st instant that satisfies an integral multiple relationship after the second time interval; or when there is no SSB transmission within the second time interval, the first instant is an end instant of the second time interval or the first instant is located after an end instant of the second time interval, the time interval between the first instant and the last SSB transmitted before the second time interval is equal to an integer multiple of the periodicity obtained after the adjustment, and the first instant is a 1 st instant that satisfies the integral multiple relationship after the second time interval.
  19. 19 . The method according to claim 16 , wherein when the periodicity obtained after the adjustment is less than the periodicity before the adjustment, the time interval between the first instant and the last SSB transmitted before the third information is equal to an integer multiple of the periodicity obtained after the adjustment, and the first instant is a 1 st instant that satisfies an integral multiple relationship after the third information; or when the periodicity obtained after the adjustment is greater than the periodicity before the adjustment, the first instant is located after a third time interval since the third information, a time interval between the first instant and a last SSB received before an end instant of the third time interval is equal to an integer multiple of the periodicity obtained after the adjustment, and the first instant is a 1 st instant that satisfies the integral multiple relationship after the third time interval.
  20. 20 . A wireless communication method, comprising: transmitting, by a network device, first information to a terminal device, wherein the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks (SSBs).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/124835, filed on Oct. 14, 2024, the disclosure of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present application relates to the field of communications technologies, and more specifically, to a wireless communication method, a terminal device, and a network device. BACKGROUND A synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel block, SS/PBCH block, SSB) may facilitate initial synchronization and connection with a base station, but SSB transmission may affect power consumption of a system. Therefore, the SSB transmission needs to be improved to achieve energy saving without affecting SSB performance. SUMMARY The present application provides a wireless communication method, a terminal device, and a network device. Various aspects used in the present application are described below. According to a first aspect, a wireless communication method is provided. The method includes: receiving, by a terminal device, first information transmitted by a network device, where the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks SSBs. According to a second aspect, a wireless communication method is provided. The method includes: transmitting, by a network device, first information to a terminal device, where the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks SSBs. According to a third aspect, a terminal device is provided. The terminal device includes a transceiver unit, receiving first information transmitted by a network device, where the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks SSBs. According to a fourth aspect, a network device is provided. The network device includes a transceiver unit, transmitting first information to a terminal device, where the first information indicates a plurality of periodicity configurations for receiving synchronization signal/physical broadcast channel blocks SSBs. According to a fifth aspect, a terminal device is provided, and the terminal device includes a transceiver, a memory, and a processor. The memory is configured to store a program, and the processor is configured to: invoke a program in the memory, and control the transceiver to receive or transmit a signal, to cause the terminal device to perform the method according to the first aspect. According to a sixth aspect, a network device is provided, and the network device includes a transceiver, a memory, and a processor. The memory is configured to store a program, and the processor is configured to: invoke a program in the memory, and control the transceiver to receive or transmit a signal, to cause the network device to perform the method according to the second aspect. According to a seventh aspect, an apparatus is provided, including a processor, invoking a program from a memory, to cause the apparatus to perform the method according to any one of the first aspect or the second aspect. According to an eighth aspect, a chip is provided, including a processor, invoking a program from a memory to cause a device installed with the chip to perform the method according to any one of the first aspect or the second aspect. According to a ninth aspect, a computer-readable storage medium is provided, where a program is stored on the computer-readable storage medium, and the program causes a computer to perform the method according to any one of the first aspect or the second aspect. According to a tenth aspect, a computer program product is provided, where the computer program product includes a program, and the program causes a computer to perform the method according to the first aspect or the second aspect. According to an eleventh aspect, a computer program is provided, where the computer program causes a computer to perform the method according to the first aspect or the second aspect. In embodiments of the present application, a plurality of periodicities for SSB transmission are configured for the terminal device by using the first information, so that the SSB transmission is more flexible, and energy saving can be achieved without affecting SSB performance. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an example diagram of a system architecture of a wireless communications system applicable to embodiments of the present application. FIG. 2 is a schematic diagram of an SSB burst. FIG. 3 is a schematic flowchart of a wireless communication method according to an embodiment of the present application. FIG. 4 is a schematic diagram of a topological structure between a terminal device and base stations. FIG. 5 is a schematic flowchart of a wireles