Wireless communications method and device

1. A wireless communications method, comprising:

obtaining, by a terminal device, resource or signal indication information, comprising: determining an obtaining manner of the resource or signal indication information according to a physical uplink control channel (PUCCH) format of a PUCCH, and obtaining the resource or signal indication information according to the determined obtaining manner;

determining, by the terminal device according to the resource or signal indication information, an uplink or downlink signal quasi co-located with the PUCCH, and determining, by the terminal device according to the resource or signal indication information, a power adjustment value corresponding to a transmit power control (TPC) command for the PUCCH carried in downlink control information (DCI) that is used for scheduling a PDSCH corresponding to the PUCCH, the power adjustment value being an accumulated value, wherein the resource or signal indication information is used for determining a transmit beam of the PUCCH and is further used for determining a current closed-loop power control process, including determining a closed-loop power control process in which the power adjustment value corresponding to the TPC command is accumulated; and

sending, by the terminal device, the PUCCH according to a quasi co-location relationship between the PUCCH and the uplink or downlink signal, comprising: when the signal quasi co-located with the PUCCH is an uplink signal, determining a transmit beam of the uplink signal as the transmit beam of the PUCCH, or when the signal quasi co-located with the PUCCH is a downlink signal, determining a receive beam of the downlink signal as the transmit beam of the PUCCH; and sending the PUCCH by using the determined transmit beam.

2. The method according to claim 1 , wherein the resource or signal indication information comprises at least one of:

synchronization signal block, SSB, indication information, used to indicate one SSB of at least one SSB;

channel state information-reference signal, CSI-RS, resource indication information, used to indicate one resource of at least one CSI-RS resource; and

sounding reference signal, SRS, resource indication information, used to indicate one resource of at least one SRS resource.

3. The method according to claim 2 , wherein the obtaining, by a terminal device, resource or signal indication information comprises:

determining a type of the resource or signal indication information based on an availability of a beam correspondence; and

receiving the resource or signal indication information with the determined type of the resource or signal information.

4. The method according to claim 3 , wherein the determining a type of the resource or signal indication information based on an availability of a beam correspondence comprises:

when the beam correspondence is available, determining that the resource or signal indication information comprises the CSI-RS resource indication information or the SSB indication information.

5. The method according to claim 1 , wherein the PUCCH being quasi co-located with the uplink or downlink signal comprises the PUCCH being quasi co-located with the uplink or downlink signal for a spatial reception parameter.

6. A terminal device, comprising a processor, a memory coupled to the processor and a plurality of programs stored in the memory that, when executed by the processor, cause the terminal device to perform a plurality of operations comprising:

obtaining resource or signal indication information, comprising: determining an obtaining manner of the resource or signal indication information according to a physical uplink control channel (PUCCH) format of a PUCCH, and obtaining the resource or signal indication information according to the determined obtaining manner;

determining, according to the resource or signal indication information, an uplink or downlink signal quasi co-located with the PUCCH, and determining, according to the resource or signal indication information, a power adjustment value corresponding to a transmit power control (TPC) command for the PUCCH carried in downlink control information (DCI) that is used for scheduling a PDSCH corresponding to the PUCCH, the power adjustment value being an accumulated value, wherein the resource or signal indication information is used for determining a transmit beam of the PUCCH and is further used for determining a current closed-loop power control process, including determining a closed-loop power control process in which the power adjustment value corresponding to the TPC command is accumulated, and

sending the PUCCH according to a quasi co-location relationship between the PUCCH and the uplink or downlink signal, comprising: when the signal quasi co-located with the PUCCH is an uplink signal, determining a transmit beam of the uplink signal as the transmit beam of the PUCCH, or when the signal quasi co-located with the PUCCH is a downlink signal, determining a receive beam of the downlink signal as the transmit beam of the PUCCH; and sending the PUCCH by using the determined transmit beam.

7. The terminal device according to claim 6 , wherein the resource or signal indication information comprises at least one of:

synchronization signal block, SSB, indication information, used to indicate one SSB of at least one SSB;

channel state information-reference signal, CSI-RS, resource indication information, used to indicate one resource of at least one CSI-RS resource; and

sounding reference signal, SRS, resource indication information, used to indicate one resource of at least one SRS resource.

8. The terminal device according to claim 7 , wherein the processor is further configured to: determine a type of the resource or signal indication information based on an availability of a beam correspondence; and receive the resource or signal indication information with the determined type of the resource or signal information.

9. The terminal device according to claim 8 , wherein the processor is further configured to:

when the beam correspondence is available, determine that the resource or signal indication information comprises the CSI-RS resource indication information or the SSB indication information.

10. The terminal device according to claim 6 , wherein the PUCCH being quasi co-located with the uplink or downlink signal comprises the PUCCH being quasi co-located with the uplink or downlink signal for a spatial reception parameter.

11. A non-transitory computer storage medium for storing a computer program that causes a computer to perform following operations:

obtaining resource or signal indication information, comprising: determining an obtaining manner of the resource or signal indication information according to a physical uplink control channel (PUCCH) format of a PUCCH, and obtaining the resource or signal indication information according to the determined obtaining manner;

determining, according to the resource or signal indication information, an uplink or downlink signal quasi co-located with the PUCCH, and determining, according to the resource or signal indication information, a power adjustment value corresponding to a transmit power control (TPC) command for the PUCCH carried in downlink control information (DCI) that is used for scheduling a PDSCH corresponding to the PUCCH, the power adjustment value being an accumulated value, wherein the resource or signal indication information is used for determining a transmit beam of the PUCCH and is further used for determining a current closed-loop power control process, including determining a closed-loop power control process in which the power adjustment value corresponding to the TPC command is accumulated, and

sending the PUCCH according to a quasi co-location relationship between the PUCCH and the uplink or downlink signal, comprising: when the signal quasi co-located with the PUCCH is an uplink signal, determining a transmit beam of the uplink signal as the transmit beam of the PUCCH, or when the signal quasi co-located with the PUCCH is a downlink signal, determining a receive beam of the downlink signal as the transmit beam of the PUCCH; and sending the PUCCH by using the determined transmit beam.

12. The computer storage medium according to claim 11 , wherein the resource or signal indication information comprises at least one of:

synchronization signal block, SSB, indication information, used to indicate one SSB of at least one SSB;

channel state information-reference signal, CSI-RS, resource indication information, used to indicate one resource of at least one CSI-RS resource; and

sounding reference signal, SRS, resource indication information, used to indicate one resource of at least one SRS resource.

13. The computer storage medium according to claim 12 , wherein the obtaining resource or signal indication information comprises:

determining a type of the resource or signal indication information based on an availability of a beam correspondence; and

receiving the resource or signal indication information with the determined type of the resource or signal information.

14. The computer storage medium according to claim 13 , wherein the determining a type of the resource or signal indication information based on an availability of a beam correspondence comprises:

when the beam correspondence is available, determining that the resource or signal indication information comprises the CSI-RS resource or signal indication information or the SSB indication information.

15. The computer storage medium according to claim 11 , wherein the PUCCH being quasi co-located with the uplink or downlink signal comprises the PUCCH being quasi co-located with the uplink or downlink signal for a spatial reception parameter.