US 12,284,664 B2
Techniques for deriving a sounding reference signal-based multi-transmission and reception point downlink precoding
Wooseok Nam, San Diego, CA (US); Tao Luo, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Mostafa Khoshnevisan, San Diego, CA (US); and Jing Sun, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 30, 2021, as Appl. No. 17/491,355.
Claims priority of provisional application 63/105,194, filed on Oct. 23, 2020.
Prior Publication US 2022/0132526 A1, Apr. 28, 2022
Int. Cl. H04W 72/54 (2023.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/54 (2023.01) [H04L 5/0051 (2013.01); H04W 72/046 (2013.01); H04W 72/23 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
receiving a sounding reference signal resource configuration indicating a quantity of sounding reference signal resources, wherein the quantity of sounding reference signal resources indicated by the sounding reference signal resource configuration is based at least in part on a type of a first multi-transmission and reception point communication scheme used for downlink communications performed by two or more transmission and reception points;
transmitting one or more sounding reference signals over the quantity of sounding reference signal resources according to the sounding reference signal resource configuration; and
receiving a downlink transmission from at least one of the two or more transmission and reception points in accordance with a downlink precoding, wherein the downlink precoding of the downlink transmission is based at least in part on one or more channel quality measurements, the one or more channel quality measurements based at least in part on the one or more sounding reference signals.