Method for transmitting physical uplink shared channel in wireless communication system, and device for same

1. A method for transmitting a Physical Uplink Shared Channel (PUSCH) in a wireless communication system, which is performed by a user equipment (UE), the method comprising:

receiving, from a base station, a first sounding reference signal (SRS) resource set having a codebook or non-codebook purpose;

receiving, from the base station, a second SRS resource set for a beam management purpose;

receiving, from the base station, information on a plurality of beam candidates for transmitting the PUSCH through a Sounding Reference Signal Resource Indicator (SRI) field;

determining any one beam of the plurality of beam candidates based on a predefined reference; and

transmitting the PUSCH by the determined any one beam,

wherein the any one beam determined based on the predefined reference is a beam most recently used by the UE within a specific interval among the plurality of beam candidates, and

wherein the plurality of beam candidates include: i) a beam used for transmitting the SRS using a first resource of the first SRS resource set indicated by the SRI field based on the first resource being included in the second SRS resource set, before a time point of receiving downlink control information (DCI).

2. The method of claim 1 , wherein the plurality of beam candidates further include:

ii) a beam used for the UE to transmit, to the base station, the SRS using a second resource of the first SRS resource set,

iii) a beam used for the UE to transmit, to the base station, a reference signal (RS) having a spatial relation with a third resource of the first SRS resource set indicated by the SRI field.

3. The method of claim 1 , wherein the specific interval is from a time point earlier than the time point of receiving the DCI by k slots up to the time of receiving the DCI.

4. The method of claim 1 , wherein the PUSCH is transmitted on a specific panel.

5. The method of claim 4 , wherein the specific panel is a panel having a linkage to the any one beam determined based on the predefined reference.

6. The method of claim 5 , wherein the linkage is transmitted from the base station through an MAC control element (CE).

7. A UE for transmitting a Physical Uplink Shared Channel (PUSCH) in a wireless communication system, the UE comprising:

one or more transceivers;

one or more processors; and

one or more memories storing instructions for operations executed by the one or more processors and connected to the one or more processors,

wherein the operations include:

receiving, from a base station, a first sounding reference signal (SRS) resource set having a codebook or non-codebook purpose;

receiving, from the base station, a second SRS resource set for a beam management purpose;

receiving, from the base station, information on a plurality of beam candidates for transmitting the PUSCH through a Sounding Reference Signal Resource Indicator (SRI) field;

determining any one beam of the plurality of beam candidates based on a predefined reference; and

transmitting the PUSCH by the determined any one beam, and

wherein the any one beam determined based on the predefined reference is a beam most recently used by the UE within a specific interval among the plurality of beam candidates, and

wherein the plurality of beam candidates include: i) a beam used for transmitting the SRS using a first resource of the first SRS resource set indicated by the SRI field based on the first resource being included in the second SRS resource set, before a time point of receiving downlink control information (DCI).

8. The UE of claim 7 , wherein the plurality of beam candidates further include:

ii) a beam used for the UE to transmit, to the base station, the SRS using a second resource of the first SRS resource set,

iii) a beam used for the UE to transmit, to the base station, a reference signal (RS) having a spatial relation with a third resource of the first SRS resource set indicated by the SRI field.

9. A method for receiving a Physical Uplink Shared Channel

(PUSCH) in a wireless communication system, which is performed by a base station, the method comprising:

transmitting, to a user equipment (UE), a first sounding reference signal (SRS) resource set having a codebook or non-codebook purpose;

transmitting, to the UE, a second SRS resource set for a beam management purpose;

transmitting, to the UE, information on a plurality of beam candidates for transmitting the PUSCH through a Sounding Reference Signal Resource Indicator (SRI) field; and

receiving, from the UE, the PUSCH transmitted by suing any one beam determined based on a predefined reference among the plurality of beam candidates,

wherein the any one beam determined based on the predefined reference is a beam most recently used by the UE within a specific interval among the plurality of beam candidates, and

wherein the plurality of beam candidates include: i) a beam used for transmitting the SRS using a first resource of the first SRS resource set indicated by the SRI field based on the first resource being included in the second SRS resource set, before a time point of receiving downlink control information (DCI).

10. The method of claim 9 , wherein the plurality of beam candidates further include:

ii) a beam used for the UE to transmit, to the base station, the SRS using a second resource of the first SRS resource set,

iii) a beam used for the UE to transmit, to the base station, a reference signal (RS) having a spatial relation with a third resource of the first SRS resource set indicated by the SRI field.

11. The method of claim 9 , wherein the specific interval is from a time point earlier than the time point of receiving the DCI by k slots up to the time of receiving the DCI.

12. The method of claim 9 , wherein the PUSCH is transmitted on a specific panel.

13. The method of claim 12 , wherein the specific panel is a panel having a linkage to the any one beam determined based on the predefined reference.

14. The method of claim 13 , wherein the linkage is transmitted from the base station through an MAC control element (CE).