METHOD OF PERFORMING NON-CODEBOOK BASED PHYSICAL UPLINK SHARED CHANNEL TRANSMISSION AND RELATED DEVICE
A method of performing a non-codebook based physical uplink shared channel (PUSCH) transmission by a user equipment (UE) is provided. The method includes receiving, from a base station (BS), first downlink control information (DCI) including a transmission configuration indication (TCI) field that indicates a source reference signal (RS) for providing transmission beam information to the UE, receiving, from the BS, second DCI including a sounding reference signal (SRS) resource indication (SRI) field that indicates an SRS resource in an SRS resource set with usage set to non-codebook (SRS-nCB) resource set for providing precoding information to the UE, and performing the non-codebook based PUSCH transmission according to the transmission beam information and the precoding information.
1 . A method of performing a non-codebook based physical uplink shared channel (PUSCH) transmission by a user equipment (UE), the method comprising:
receiving, from a base station (BS), first downlink control information (DCI) including a transmission configuration indication (TCI) field that indicates a source reference signal (RS) for providing transmission beam information to the UE;
receiving, from the BS, second DCI including a sounding reference signal (SRS) resource indication (SRI) field that indicates an SRS resource in an SRS resource set with usage set to non-codebook (SRS-nCB) resource set for providing precoding information to the UE; and
performing the non-codebook based PUSCH transmission according to the transmission beam information and the precoding information.
2 . The method of claim 1 , wherein the first DCI and the second DCI are different DCIs.
3 . The method of claim 1 , wherein transmission beam information associated with the SRS-nCB resource set is the same as the transmission beam information provided by the source RS.
4 . The method of claim 3 , wherein the transmission beam information associated with the SRS-nCB resource set is determined based on a channel state information reference signal (CSI-RS) resource configured by the BS.
5 . The method of claim 3 , wherein the SRS resource is configured with spatial relation information for deriving the transmission beam information for a transmission of the SRS resource.
6 . The method of claim 1 , wherein the source RS is an SRS resource of an SRS resource set with usage set to a beamManagement (SRS-bM) resource set, a channel state information reference signal (CSI-RS) resource, or a synchronization signal block (SSB).
7 . The method of claim 1 , wherein the source RS is configured with a spatial relation information for deriving the transmission beam information.
8 . The method of claim 1 , further comprising:
deriving panel information for the non-codebook based PUSCH transmission according to the source RS, wherein the derived panel information is used for at least one of a transmission of the SRS resource and the non-codebook based PUSCH transmission.
9 . A user equipment (UE) for performing a non-codebook based physical uplink shared channel (PUSCH) transmission, the UE comprising:
at least one processor; and
at least one memory coupled to the at least one processor, the at least one memory storing computer-executable instructions that, when executed by the at least one processor, cause the UE to:
receive, from a base station (BS), first downlink control information (DCI) including a transmission configuration indication (TCI) field that indicates a source reference signal (RS) for providing transmission beam information to the UE;
receive, from the BS, second DCI including a sounding reference signal (SRS) resource indication (SRI) field that indicates an SRS resource in an SRS resource set with usage set to non-codebook (SRS-nCB) resource set for providing precoding information to the UE; and
perform the non-codebook based PUSCH transmission according to the transmission beam information and the precoding information.
10 . The UE of claim 9 , wherein the first DCI and the second DCI are different DCIs.
11 . The UE of claim 9 , wherein transmission beam information associated with the SRS-nCB resource set is the same as the transmission beam information provided by the source RS.
12 . The UE of claim 11 , wherein the transmission beam information associated with the SRS-nCB resource set is determined based on a channel state information reference signal (CSI-RS) resource configured by the BS.
13 . The UE of claim 11 , wherein the SRS resource is configured with spatial relation information for deriving the transmission beam information for a transmission of the SRS resource.
14 . The UE of claim 9 , wherein the source RS is an SRS resource of an SRS resource set with usage set to a beamManagement (SRS-bM) resource set, a channel state information reference signal (CSI-RS) resource, or a synchronization signal block (SSB).
15 . The UE of claim 9 , wherein the source RS is configured with a spatial relation information for deriving the transmission beam information.
16 . The UE of claim 9 , wherein the computer-executable instructions, when executed by the at least one processor, further cause the UE to:
derive panel information for the non-codebook based PUSCH transmission according to the source RS, wherein the derived panel information is used for at least one of a transmission of the SRS resource and the non-codebook based PUSCH transmission.