QUALCOMM Incorporated
TECHNIQUES FOR DERIVING A SOUNDING REFERENCE SIGNAL-BASED MULTI-TRANSMISSION AND RECEPTION POINT DOWNLINK PRECODING

Abstract:

Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a sounding reference signal (SRS) resource configuration indicating one or more resources over which the UE may transmit one or more SRSs to one or more transmission and reception points (TRPs) within a multi-TRP communications system applying a multi-TRP communication scheme. The SRS resource configuration may configure the one or more resources based on a type of multi-TRP communication scheme being applied by multiple TRPs within the multi-TRP communications system and the UE may support SRS-based channel state information (CSI) acquisition within the multi-TRP communication scheme based on transmitting one or more SRSs over the configured resources. The UE may also receive configurations indicating spatial relations between each configured resource, two or more downlink reference signals, and a demodulation reference signal of an associated downlink transmission.