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US-20260129716-A1 - METHOD FOR WIRELESS COMMUNICATIONS, TERMINAL DEVICE, AND NETWORK DEVICE

US20260129716A1US 20260129716 A1US20260129716 A1US 20260129716A1US-20260129716-A1

Abstract

A method for wireless communications, a terminal device, and a network device are provided. One example method includes: determining second information based on first information, wherein the first information is associated with direction, and the second information indicates a reception direction of a synchronization signal block/physical broadcast channel (SS/PBCH) block (SSB).

Inventors

  • Zheng Zhao
  • Ling LYU

Assignees

  • QUECTEL WIRELESS SOLUTIONS CO., LTD.

Dates

Publication Date
20260507
Application Date
20260105

Claims (20)

  1. 1 . A method for wireless communications, comprising: determining, by a terminal device, second information based on first information, wherein the first information is associated with direction, and the second information indicates a reception direction of a synchronization signal block/physical broadcast channel (SS/PBCH) block (SSB).
  2. 2 . The method according to claim 1 , wherein the second information comprises at least one of: the reception direction of the SSB; or an SSB index of the SSB.
  3. 3 . The method according to claim 1 , wherein the first information comprises channel state information (CSI).
  4. 4 . The method according to claim 3 , wherein the second information comprises a direction corresponding to a channel having an optimal channel state as indicated by the CSI.
  5. 5 . The method according to claim 1 , wherein the first information comprises a transmission configuration indication (TCI) state.
  6. 6 . The method according to claim 5 , wherein the second information is determined based on direction information carried in the TCI state.
  7. 7 . The method according to claim 6 , wherein the direction information carried in the TCI state comprises one or more of: an SSB index; direction information of a channel state information-reference signal (CSI-RS); beam information; or antenna port information.
  8. 8 . The method according to claim 1 , further comprising: transmitting, by the terminal device, a CSI report to a network device, wherein the CSI report comprises information for determining a target SSB index, and an index of an SSB transmitted by the network device is the target SSB index.
  9. 9 . The method according to claim 8 , wherein the target SSB index is one or more indexes from candidate SSB indexes.
  10. 10 . The method according to claim 1 , further comprising: receiving, by the terminal device, information on candidate SSB indexes from a network device, wherein the reception direction corresponds to one or more indexes from the candidate SSB indexes.
  11. 11 . The method according to claim 10 , wherein the information on the candidate SSB indexes is carried in one or more of the: configuration information of an SSB from the network device; activation information of an SSB from the network device; configuration information of a secondary cell from the network device; or activation information of a secondary cell from the network device.
  12. 12 . The method according to claim 1 , further comprising: receiving, by the terminal device, a correspondence between SSB indexes and reception directions of an SSB from a network device, wherein the correspondence is used to determine an SSB index corresponding to a respective reception direction.
  13. 13 . A method for wireless communications, comprising: transmitting a synchronization signal block/physical broadcast channel (SS/PBCH) block (SSB) to a terminal device, wherein a reception direction of the SSB is indicated by second information, the second information is determined based on first information, and the first information is associated with direction.
  14. 14 . The method according to claim 13 , wherein the second information comprises at least one of: the reception direction of the SSB; or an SSB index of the SSB.
  15. 15 . The method according to claim 13 , wherein the first information comprises channel state information (CSI).
  16. 16 . The method according to claim 15 , wherein the second information comprises a direction corresponding to a channel having an optimal channel state as indicated by the CSI.
  17. 17 . The method according to claim 15 , wherein the first information comprises a transmission configuration indication (TCI) state.
  18. 18 . The method according to claim 17 , wherein the second information is determined based on direction information carried in the TCI state.
  19. 19 . The method according to claim 18 , wherein the direction information carried in the TCI state comprises one or more of: an SSB index; direction information of a channel state information-reference signal CSI-RS; beam information; or antenna port information.
  20. 20 . An apparatus, comprising: at least one processor; and one or more non-transitory computer-readable storage media coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions, when executed, cause the apparatus to perform operations comprising: determining second information based on first information, wherein the first information is associated with direction, and the second information indicates a reception direction of a synchronization signal block/physical broadcast channel (SS/PBCH) block (SSB).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/113206, filed on Aug. 19, 2024, the disclosure of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present application relates to the technical field of communications, and more specifically, to a method for wireless communications, a terminal device and a network device. BACKGROUND A synchronization signal block/physical broadcast channel block (SS/PBCH block, or SSB) is transmitted by means of beam sweeping. Typically, multiple SSBs are transmitted within a cell in order to complete one round of beam sweeping, so as to allow the SSBs to cover the entire service area of the cell. These SSBs are associated with respective SSB indexes. A terminal device can detect a SSB based on the corresponding SSB index. Therefore, how the terminal device obtains the SSB index becomes a problem to be solved. SUMMARY A method for wireless communications, a terminal device and a network device are provided in the present application. Descriptions of various aspects involved in the present application are provided below. In a first aspect, a method for wireless communications is provided. The method includes: determining, by a terminal device based on first information, second information. The first information is associated with direction, and the second information indicates a reception direction of an SSB. In a second aspect, a method for wireless communications is provided. The method comprises: transmitting, by a network device, an SSB to a terminal device. A reception direction of the SSB is indicated by second information, the second information is determined based on first information, and the first information is associated with direction. In a third aspect, a terminal device is provided. The terminal device comprises: a processing unit for determining second information based on first information. The first information is associated with direction, and the second information indicates a reception direction of an SSB. In a fourth aspect, a network device is provided. The network device comprises: a transceiver unit for transmitting an SSB to a terminal device. A reception direction of the SSB is indicated by second information, the second information is determined based on first information, and the first information is associated with direction. In a fifth aspect, a terminal device is provided. The terminal device comprises a transceiver, a memory, and a processor. The memory is configured to store a program. The processor is configured to invoke the program stored in the memory and control the transceiver to receive or transmit a signal, to cause the terminal device to perform the method as described in the first aspect. In a sixth aspect, a network device is provided. The network device comprises a transceiver, a memory, and a processor. The memory is configured to store a program. The processor is configured to invoke the program stored in the memory and control the transceiver to receive or transmit a signal, to cause the network device to perform the method as described in the second aspect. In a seventh aspect, an apparatus is provided. The apparatus comprises a processor for invoking a program from a memory, to cause the apparatus to perform the method as described in the first aspect or the second aspect. In an eighth aspect, a chip is provided. The chip comprises a processor for invoking a program from a memory, to cause a device incorporating the chip to perform the method as described in the first aspect or the second aspect. In a ninth aspect, a computer-readable storage medium is provided. The computer-readable storage medium has stored thereon a program which causes a computer to perform the method as described in the first aspect or the second aspect. In a tenth aspect, a computer program product is provided. The computer program product includes a program which causes a computer to perform the method as described in the first aspect or the second aspect. In an eleventh aspect, a computer program is provided. The computer program causes a computer to perform the method as described in the first aspect or the second aspect. In the embodiments of the present application, a terminal device can determine second information based on first information associated with direction, and further acquire a reception direction of an SSB based on the second information, to detect the SSB. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating a system architecture of a wireless communications system applied to embodiments of the present application. FIG. 2 is a schematic diagram illustrating carrier aggregation according to the embodiments of the present application. FIG. 3 is a schematic diagram illustrating a development process of the carrier aggregation according to the embodiments of the present application. FIG. 4 is a schematic structural d