Techniques for spatial division multiplexed uplink transmissions associated with sounding reference signal resource sets scheduled by a downlink control information format

A base station for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• transmit a sounding reference signal (SRS) configuration indicating a first SRS resource set that includes NSRS,0_21 SRS resources and a second SRS resource set that includes NSRS,0_22 SRS resources, the first SRS resource set and the second SRS resource set being configured for uplink transmissions scheduled by a second downlink control information (DCI) format,
• wherein the NSRS,0_21 SRS resources of the first SRS resource set are a first NSRS,0_21 resources from a third SRS resource set that includes NSRS1 resources,
• wherein the NSRS,0_22 SRS resources of the second SRS resource set are a first NSRS,0_21 resources from a fourth SRS resource set that includes NSRS2 resources,
• wherein the third SRS resource set and the fourth SRS resource set are configured for uplink transmissions scheduled by a first DCI format, and
• wherein NSRS-SDM1 SRS resources of the third SRS resource set and NSRS-SDM2 resources of the fourth SRS resource set are configured for spatial division multiplexed (SDM) uplink communications scheduled by the first DCI format;
• and
• receive an uplink transmission scheduled using the second DCI format, the uplink transmission being received based at least in part on the SRS configuration.

A method of wireless communication performed by a user equipment (UE), comprising:

• receiving a sounding reference signal (SRS) configuration indicating a first SRS resource set that includes NSRS,0_21 SRS resources and a second SRS resource set that includes NSRS,0_22 SRS resources, the first SRS resource set and the second SRS resource set being configured for uplink transmissions scheduled by a second downlink control information (DCI) format,
• wherein the NSRS,0_21 SRS resources of the first SRS resource set are a first NSRS,0_21 resources from a third SRS resource set that includes NSRS1 resources,
• wherein the NSRS,0_22 SRS resources of the second SRS resource set are a first NSRS,0_21 resources from a fourth SRS resource set that includes NSRS2 resources,
• wherein the third SRS resource set and the fourth SRS resource set are configured for uplink transmissions scheduled by a first DCI format, and
• wherein NSRS-SDM1 SRS resources of the third SRS resource set and NSRS-SDM2 resources of the fourth SRS resource set are configured for spatial division multiplexed (SDM) uplink communications scheduled by the first DCI format;
• and
• transmitting an uplink transmission scheduled using the second DCI format, the uplink transmission being transmitted based at least in part on the SRS configuration.

A method of wireless communication performed by a base station, comprising:

• transmitting a sounding reference signal (SRS) configuration indicating a first SRS resource set that includes NSRS,0_21 SRS resources and a second SRS resource set that includes NSRS,0_22 SRS resources, the first SRS resource set and the second SRS resource set being configured for uplink transmissions scheduled by a second downlink control information (DCI) format,
• wherein the NSRS,0_21 SRS resources of the first SRS resource set are a first NSRS,0_21 resources from a third SRS resource set that includes NSRS1 resources,
• wherein the NSRS,0_22 SRS resources of the second SRS resource set are a first NSRS,0_21 resources from a fourth SRS resource set that includes NSRS2 resources,
• wherein the third SRS resource set and the fourth SRS resource set are configured for uplink transmissions scheduled by a first DCI format, and
• wherein NSRS-SDM1 SRS resources of the third SRS resource set and NSRS-SDM2 resources of the fourth SRS resource set are configured for spatial division multiplexed (SDM) uplink communications scheduled by the first DCI format;
• and
• receiving an uplink transmission scheduled using the second DCI format, the uplink transmission being received based at least in part on the SRS configuration.