SRS design supporting multiple antennas

An apparatus for wireless communication at a user equipment (UE), comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor storing code executable by the at least one processor to cause the apparatus to:
• receive a configuration from a base station for a sounding reference signal (SRS) resource set for non-codebook-based SRS transmission, the SRS resource set comprising a plurality of SRS resources, each SRS resource in the SRS resource set being associated with a corresponding SRS port;
• and
• transmit, responsive to the received configuration, a UE capability message to the base station indicating:
• one or more supported combinations of SRS resources of the SRS resource set,
• one or more unsupported combinations of SRS resources of the SRS resource set, or
• both the one or more supported combinations of SRS resources and the one or more unsupported combinations of SRS resources.

An apparatus for wireless communication at a user equipment (UE), comprising:

• means for receiving a configuration from a base station for a sounding reference signal (SRS) resource set for non-codebook-based SRS transmission, the SRS resource set comprising a plurality of SRS resources, each SRS resource in the SRS resource set being associated with a corresponding SRS port;
• and
• means for transmitting, responsive to the received configuration, a UE capability message to the base station indicating:
• one or more supported combinations of SRS resources of the SRS resource set,
• one or more unsupported combinations of SRS resources of the SRS resource set, or
• both the one or more supported combinations of SRS resources and the one or more unsupported combinations of SRS resources.

A non-transitory, computer-readable medium storing computer-executable code for wireless communication by a user equipment (UE), the code, when executed by at least one processor, to cause the at least one processor to:

• receive a configuration from a base station for a sounding reference signal (SRS) resource set for non-codebook-based SRS transmission, the SRS resource set comprising a plurality of SRS resources, each SRS resource in the SRS resource set being associated with a corresponding SRS port;
• and
• transmit, responsive to the received configuration, a UE capability message to the base station indicating:
• one or more supported combinations of SRS resources of the SRS resource set,
• one or more unsupported combinations of SRS resources of the SRS resource set, or
• both the one or more supported combinations of SRS resources and the one or more unsupported combinations of SRS resources.