Method and apparatus for power control of PUSCH repetition

1 . A method performed by a user equipment (UE), the method comprising:

receiving a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, the PUSCH transmission configured to be transmitted in a plurality of time intervals repeatedly, wherein the configuration of the plurality of power control parameter sets includes at least a first SRI-PUSCH-PowerControl list and a second SRI-PUSCH-PowerControl list, each SRI-PUSCH-PowerControl list including at least one power control parameter set;

receiving a downlink control information (DCI) for scheduling the PUSCH transmission, the DCI including a sounding reference signal resource indicator (SRI) field that includes two SRI values that each indicate one of a sounding reference signal (SRS) resource for codebook based transmission or an SRS resource subset for non-codebook based transmission and further including a transmission power control (TPC) command field that indicates a first TPC command that corresponds to a first closed loop index and a second TPC command that corresponds to a second closed loop index, wherein a first power control parameter set is indicated by a first SRI value mapped to the first SRI-PUSCH-PowerControl list and a second power control parameter set is indicated by a second SRI value mapped to the second SRI-PUSCH-PowerControl list, and wherein the mapping pattern indicates each PUSCH repetition associated with the SRS resource for codebook based transmission, or the SRS resource subset for non-codebook based transmission, and wherein a number of SRI-PUSCH-PowerControl lists is a same number as a number of SRI values;

determining a power of each PUSCH repetition of the PUSCH transmission based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets, and the mapping pattern; and

transmitting the PUSCH transmission in the plurality of time intervals repeatedly based on the determined power of each PUSCH repetition of the PUSCH transmission and the mapping pattern.

2 . The method of claim 1 , wherein each of the plurality of the power control parameter sets includes at least one of a power offset, a compensation factor, a pathloss reference RS, or a closed loop index.

3 . The method of claim 1 , wherein the first power control parameter set and the second power control parameter set are associated with the first TPC command and the second TPC command respectively, and the first closed loop index and the second closed loop index are included in the first power control parameter set and the second power control parameter set, respectively.

4 . The method of claim 3 , further comprising:

determining the power of each PUSCH repetition of the PUSCH transmission based on a power control parameter set associated with an SRI value which is associated with each PUSCH repetition and a corresponding TPC command of the first TPC command and the second TPC command.

5 . The method of claim 1 , wherein the configuration of the plurality of power control parameter sets includes a SRI-PUSCH-PowerControl list, wherein at least two of the plurality of power control parameter sets are configured for at least one SRI-PUSCH-PowerControl Id within the SRI-PUSCH-PowerControl list, and wherein a number of the indicated SRS resources for codebook based transmission or the indicated SRS resource subsets for non-codebook transmission is a same number as a number of configured power control parameter sets in the SRI-PUSCH-PowerControl Id where an SRI value is mapped.

6 . The method of claim 5 , wherein the SRI value indicates two SRS resources for codebook based transmission or two SRS resource subsets for non-codebook based transmission, and in the SRI-PUSCH-PowerControl list, two power control parameter sets including the first power control parameter set and the second power control parameter set are configured for the SRI-PUSCH-PowerControl Id where the SRI value is mapped.

7 . The method of claim 6 , wherein a first SRS resource of the two SRS resources for codebook based transmission or a first SRS resource subset of the two SRS resource subsets for non-codebook based transmission is associated with the first power control parameter set, and a second SRS resource of the two SRS resources for codebook based transmission or a second SRS resource subset of the two SRS resource subsets for non-codebook based transmission is associated with the second power control parameter set.

8 . The method of claim 7 , wherein the first power control parameter set and the second power control parameter set are associated with the first TPC command and the second TPC command respectively, and the first closed loop index and the second closed loop index are included in the first power control parameter set and the second power control parameter set respectively.

9 . A user equipment (UE) for wireless communication, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the UE to:

receive a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, the PUSCH transmission configured to be transmitted in a plurality of time intervals repeatedly, wherein the configuration of the plurality of power control parameter sets includes at least a first SRI-PUSCH-PowerControl list and a second SRI-PUSCH-PowerControl list, each SRI-PUSCH-PowerControl list including at least one power control parameter set;

receive a downlink control information (DCI) for scheduling the PUSCH transmission, the DCI including a sounding reference signal resource indicator (SRI) field that includes two SRI values that each indicate one of a sounding reference signal (SRS) resource for codebook based transmission or an SRS resource subset for non-codebook based transmission and further including a transmission power control (TPC) command field that indicates a first TPC command that corresponds to a first closed loop index and a second TPC command that corresponds to a second closed loop index, wherein a first power control parameter set is indicated by a first SRI value mapped to the first SRI-PUSCH-PowerControl list and a second power control parameter set is indicated by a second SRI value mapped to the second SRI-PUSCH-PowerControl list, and wherein the mapping pattern indicates each PUSCH repetition associated with the SRS resource for codebook based transmission, or the SRS resource subset for non-codebook based transmission, and wherein a number of SRI-PUSCH-PowerControl lists is a same number as a number of SRI values;

determine a power of each PUSCH repetition of the PUSCH transmission based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets, and the mapping pattern; and

transmit the PUSCH transmission in the plurality of time intervals repeatedly based on the determined power of each PUSCH repetition of the PUSCH transmission and the mapping pattern.

10 . The UE of claim 9 , wherein the first power control parameter set and the second power control parameter set are associated with the first TPC command and the second TPC command respectively, and the first closed loop index and the second closed loop index are included in the first power control parameter set and the second power control parameter set, respectively.

11 . The UE of claim 10 , wherein the power of each PUSCH repetition of the PUSCH transmission is determined by: determining the power of each PUSCH repetition of the PUSCH transmission based on a power control parameter set associated with an SRI value which is associated with each PUSCH repetition and a corresponding TPC command of the first TPC command and the second TPC command.

12 . The UE of claim 9 , wherein the configuration of the plurality of power control parameter sets includes a SRI-PUSCH-PowerControl list, wherein at least two of the plurality of power control parameter sets are configured for at least one SRI-PUSCH-PowerControl Id within the SRI-PUSCH-PowerControl list, and wherein a number of the indicated SRS resources for codebook based transmission or the indicated SRS resource subsets for non-codebook transmission is a same number as a number of configured power control parameter sets in the SRI-PUSCH-PowerControl Id where an SRI value is mapped.

13 . The UE of claim 12 , wherein the SRI value indicates two SRS resources for codebook based transmission or two SRS resource subsets for non-codebook based transmission, and in the SRI-PUSCH-PowerControl list, two power control parameter sets including the first power control parameter set and the second power control parameter set are configured for the SRI-PUSCH-PowerControl Id where the SRI value is mapped.

14 . The UE of claim 13 , wherein a first SRS resource of the two SRS resources for codebook based transmission or a first SRS resource subset of the two SRS resource subsets for non-codebook based transmission is associated with the first power control parameter set, and a second SRS resource of the two SRS resources for codebook based transmission or a second SRS resource subset of the two SRS resource subsets for non-codebook based transmission is associated with the second power control parameter set.

15 . The UE of claim 14 , wherein the first power control parameter set and the second power control parameter set are associated with the first TPC command and the second TPC command respectively, and the first closed loop index and the second closed loop index are included in the first power control parameter set and the second power control parameter set respectively.

16 . The UE of claim 9 , wherein each of the plurality of the power control parameter sets includes at least one of a power offset, a compensation factor, a pathloss reference RS, or a closed loop index.

17 . A base station for wireless communication, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the base station to:

transmit a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, the PUSCH transmission configured to be transmitted in a plurality of time intervals repeatedly, wherein the configuration of the plurality of power control parameter sets includes at least a first SRI-PUSCH-PowerControl list and a second SRI-PUSCH-PowerControl list, each SRI-PUSCH-PowerControl list including at least one power control parameter set;

transmit a downlink control information (DCI) for scheduling the PUSCH transmission, the DCI including a sounding reference signal resource indicator (SRI) field that includes two SRI values that each indicate one of a sounding reference signal (SRS) resource for codebook based transmission or an SRS resource subset for non-codebook based transmission and further including a transmission power control (TPC) command field that indicates a first TPC command that corresponds to a first closed loop index and a second TPC command that corresponds to a second closed loop index, wherein a first power control parameter set is indicated by a first SRI value mapped to the first SRI-PUSCH-PowerControl list and a second power control parameter set is indicated by a second SRI value mapped to the second SRI-PUSCH-PowerControl list, and wherein the mapping pattern indicates each PUSCH repetition associated with the SRS resource for codebook based transmission, or the SRS resource subset for non-codebook based transmission, and wherein a number of SRI-PUSCH-PowerControl lists is a same number as a number of SRI values; and

receive the PUSCH transmission in the plurality of time intervals repeatedly, wherein a power of each PUSCH repetition of the PUSCH transmission is determined based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets, and the mapping pattern.

18 . The base station of claim 17 , wherein each of the plurality of the power control parameter sets includes at least one of a power offset, a compensation factor, a pathloss reference RS, or a closed loop index.

19 . A method performed by a base station, the method comprising:

transmitting a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, the PUSCH transmission configured to be transmitted in a plurality of time intervals repeatedly, wherein the configuration of the plurality of power control parameter sets includes at least a first SRI-PUSCH-PowerControl list and a second SRI-PUSCH-PowerControl list, each SRI-PUSCH-PowerControl list including at least one power control parameter set;

transmitting a downlink control information (DCI) for scheduling the PUSCH transmission, the DCI including a sounding reference signal resource indicator (SRI) field that includes two SRI values that each indicate one of a sounding reference signal (SRS) resource for codebook based transmission or an SRS resource subset for non-codebook based transmission and further including a transmission power control (TPC) command field that indicates a first TPC command that corresponds to a first closed loop index and a second TPC command that corresponds to a second closed loop index, wherein a first power control parameter set is indicated by a first SRI value mapped to the first SRI-PUSCH-PowerControl list and a second power control parameter set is indicated by a second SRI value mapped to the second SRI-PUSCH-PowerControl list, and wherein the mapping pattern indicates each PUSCH repetition associated with the SRS resource for codebook based transmission, or the SRS resource subset for non-codebook based transmission, and wherein a number of the SRI-PUSCH-PowerControl lists is a same number as a number of the SRI values; and

receiving the PUSCH transmission in the plurality of time intervals repeatedly, wherein a power of each PUSCH repetition of the PUSCH transmission is determined based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets, and the mapping pattern.

20 . The method of claim 19 , wherein each of the plurality of the power control parameter sets includes at least one of a power offset, a compensation factor, a pathloss reference RS, or a closed loop index.