Power control method and apparatus, base station, terminal, and computer-readable storage medium
Provided are a power control method, a power control apparatus, a base station, a terminal and a computer-readable storage medium. The method includes: a second communication node configuring a power control parameter for a first communication node, where the power control parameter includes at least one transmit power offset, and the transmit power offset is determined by at least one of: a payload size of physical uplink control channel (PUCCH) transmission, a number of orthogonal frequency division multiplexing (OFDM) symbols occupied by PUCCH transmission, a number of resource blocks (RBs) occupied by PUCCH transmission, or whether a PUCCH is subjected to frequency hopping.
1. A power control method of a terminal, comprising:
determining a power control parameter of a physical uplink shared channel (PUSCH) transmission according to a power control parameter of a physical uplink control channel (PUCCH),
wherein the determining comprises determining a reference signal (RS) parameter of a pathloss (PL) of the PUSCH according to an RS parameter of a PL of the PUCCH,
wherein the PUCCH is determined by a PUCCH resource, from a plurality of PUCCH resources, having a smallest PUCCH resource index, and
wherein the PUCCH resource having the smallest PUCCH resource index and the PUSCH transmission belong to a same bandwidth part (BWP) and a same cell.
2. The method of claim 1 , wherein the PUSCH is scheduled by a DCI format 0-0.
3. The power control method of claim 1 ,
wherein the determining further comprises determining an open-loop power control parameter of the PUSCH according to an open-loop power control parameter of the PUCCH and a deviation between the open-loop power control parameter of the PUCCH and the open-loop power control parameter of the PUSCH.
4. The power control method of claim 1 , wherein the determining further comprises determining a closed-loop power control parameter of the PUSCH according to a closed-loop power control parameter of the PUCCH comprising at least one of:
whether cumulative closed-loop power control is enabled; or
determining a power control adjustment state of the PUSCH according to a power control adjustment state of the PUCCH.
5. The power control method of claim 4 , wherein the determining the power control adjustment state of the PUSCH according to the power control adjustment state of the PUCCH comprises one of:
using the power control adjustment state of the PUCCH as the power control adjustment state of the PUSCH;
at a preset moment, using the closed-loop power control parameter of the PUCCH as the closed-loop power control parameter of the PUSCH, and after the preset moment, the PUSCH using a power control adjustment state maintained independently for the PUSCH;
in response to the power control adjustment state of the PUCCH being greater than a preset threshold, determining the power control adjustment state of the PUSCH according to the power control adjustment state of the PUCCH; or
in response to the power control adjustment state of the PUCCH being greater than a preset threshold at a preset moment, using the closed-loop power control parameter of the PUCCH as the closed-loop power control parameter of the PUSCH, and after the preset moment, the PUSCH using a power control adjustment state maintained independently for the PUSCH.
6. The power control method of claim 5 , wherein the preset moment refers to one of:
a moment when the PUSCH is scheduled by downlink control information (DCI) format 0-0 for a first time;
a moment when scheduling the PUSCH by a DCI which is not DCI format 0-0 is converted into scheduling the PUSCH by DCI format 0-0;
a moment when a current spatial relationship of the PUCCH changes; or
a moment when the PUSCH is scheduled by DCI format 0-0 after the current spatial relationship of the PUCCH changes.
7. A computer-readable storage medium, comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 1 .
8. A non-transitory computer-readable storage medium, comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 2 .
9. A non-transitory computer-readable storage medium, comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 3 .
10. A non-transitory computer-readable storage medium, comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 4 .
11. A terminal, comprising a processor and a memory, wherein the processor is configured to execute a power control program stored in the memory to implement:
determining a power control parameter of a physical uplink shared channel (PUSCH) transmission according to a power control parameter of a physical uplink control channel (PUCCH),
wherein the determining comprises determining a reference signal (RS) parameter of a pathloss (PL) of the PUSCH according to an RS parameter of a PL of the PUCCH,
wherein the PUCCH is determined by a PUCCH resource, from a plurality of PUCCH resources, having a smallest PUCCH resource index, and
wherein the PUCCH resource having the smallest PUCCH resource index and the PUSCH transmission belong to a same bandwidth part (BWP) and a same cell.
12. The terminal of claim 11 , wherein the PUSCH is scheduled by a DCI format 0-0.
13. The terminal of claim 11 , wherein the determining further comprises determining an open-loop power control parameter of the PUSCH according to an open-loop power control parameter of the PUCCH and a deviation between the open-loop power control parameter of the PUCCH and the open-loop power control parameter of the PUSCH.
14. The terminal of claim 11 , wherein the determining further comprises determining a closed-loop power control parameter of the PUSCH according to a closed-loop power control parameter of the PUCCH comprising at least one of:
whether cumulative closed-loop power control is enabled; or
determining a power control adjustment state of the PUSCH according to a power control adjustment state of the PUCCH.
15. A power control apparatus, comprising
at least one processor configured to:
determine a power control parameter of a physical uplink shared channel (PUSCH) transmission according to a power control parameter of a physical uplink control channel (PUCCH) by determining a reference signal, RS, parameter of a pathloss (PL) of the PUSCH according to an RS parameter of a PL of the PUCCH, and
determine the PUCCH by a PUCCH resource, from a plurality of PUCCH resources, having a smallest PUCCH resource index,
wherein the PUCCH resource having the smallest PUCCH resource index and the PUSCH transmission belong to a same bandwidth part (BWP) and a same cell.
16. The power control apparatus of claim 15 , wherein the PUSCH is scheduled by a DCI format 0-0.
17. The power control apparatus of claim 15 , wherein the at least one processor is further configured to determine an open-loop power control parameter of the PUSCH according to an open-loop power control parameter of the PUCCH and a deviation between the open-loop power control parameter of the PUCCH and the open-loop power control parameter of the PUSCH.
18. The power control apparatus of claim 15 , wherein the at least one processor unit is further configured to determine a closed-loop power control parameter of the PUSCH according to a closed-loop power control parameter of the PUCCH, the determining comprising at least one of:
whether cumulative closed-loop power control is enabled; or
determining a power control adjustment state of the PUSCH according to a power control adjustment state of the PUCCH.
19. The power control apparatus of claim 18 , wherein the at least one processor is further configured to determine the power control adjustment state of the PUSCH according to the power control adjustment state of the PUCCH, the determining comprising one of:
using the power control adjustment state of the PUCCH as the power control adjustment state of the PUSCH;
at a preset moment, using the closed-loop power control parameter of the PUCCH as the closed-loop power control parameter of the PUSCH, and after the preset moment, the PUSCH using a power control adjustment state maintained independently for the PUSCH;
in response to the power control adjustment state of the PUCCH being greater than a preset threshold, determining the power control adjustment state of the PUSCH according to the power control adjustment state of the PUCCH; or
in response to the power control adjustment state of the PUCCH being greater than a preset threshold at a preset moment, using the closed-loop power control parameter of the PUCCH as the closed-loop power control parameter of the PUSCH, and after the preset moment, the PUSCH using a power control adjustment state maintained independently for the PUSCH.
20. The power control apparatus of claim 19 , wherein the preset moment refers to one of:
a moment when the PUSCH is scheduled by downlink control information (DCI) format 0-0 for a first time;
a moment when scheduling the PUSCH by a DCI which is not DCI format 0-0 is converted into scheduling the PUSCH by DCI format 0-0;
a moment when a current spatial relationship of the PUCCH changes; or
a moment when the PUSCH is scheduled by DCI format 0-0 after the current spatial relationship of the PUCCH changes.