Multi-slot aperiodic sounding reference signal

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

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• receive, from a base station (BS), a sounding reference signal (SRS) configuration indicating a number of candidate slots for transmission of a multi-slot aperiodic SRS (A-SRS);
• receive, from the BS, an SRS trigger, the SRS trigger comprising an indication of an A-SRS resource set, the A-SRS resource set comprising a plurality of A-SRS resources corresponding to the number of candidate slots;
• and
• transmit, in response to the SRS trigger, the multi-slot A-SRS in one or more of a plurality of candidate slots using at least a portion of the A-SRS resource set.

A base station for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• transmit, to a user equipment (UE), a sounding reference signal (SRS) configuration indicating a number of candidate slots for transmission of a multi-slot aperiodic SRS (A-SRS);
• transmit, to the UE, a sounding reference signal (SRS) trigger, the SRS trigger comprising an indication of an A-SRS resource set, the A-SRS resource set comprising a plurality of A-SRS resources corresponding to the number of candidate slots;
• and
• receive, in response to the SRS trigger, the multi-slot A-SRS that is transmitted in one or more of a plurality of candidate slots using at least a portion of the A-SRS resource set.

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

• receiving, from a base station (BS), a sounding reference signal (SRS) configuration indicating a number of candidate slots for transmission of a multi-slot aperiodic SRS (A-SRS);
• receiving, from the BS, an SRS trigger, the SRS trigger comprising an indication of an A-SRS resource set, the A-SRS resource set comprising a plurality of A-SRS resources corresponding to the number of candidate slots;
• and
• transmitting, in response to the SRS trigger, the multi-slot A-SRS in one or more of a plurality of candidate slots using at least a portion of the A-SRS resource set.

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

• transmitting, to a user equipment (UE), a sounding reference signal (SRS) configuration indicating a number of candidate slots for transmission of a multi-slot aperiodic SRS (A-SRS);
• transmitting, to the UE, a sounding reference signal (SRS) trigger, the SRS trigger comprising an indication of an A-SRS resource set, the A-SRS resource set comprising a plurality of A-SRS resources corresponding to the number of candidate slots;
• and
• receiving, in response to the SRS trigger, the multi-slot A-SRS that is transmitted in one or more of a plurality of candidate slots using at least a portion of the A-SRS resource set.