US 12,231,361 B2
Precoded sounding reference signals for partial reciprocity
Runxin Wang, San Diego, CA (US); Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US); Yu Zhang, San Diego, CA (US); Alexandros Manolakos, Escondido, CA (US); and Weimin Duan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/758,442
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 1, 2020, PCT No. PCT/CN2020/074140
§ 371(c)(1), (2) Date Jul. 6, 2022,
PCT Pub. No. WO2021/151257, PCT Pub. Date Aug. 5, 2021.
Prior Publication US 2023/0006789 A1, Jan. 5, 2023
Int. Cl. H04L 5/00 (2006.01); H04L 1/00 (2006.01); H04W 72/54 (2023.01)
CPC H04L 5/0048 (2013.01) [H04L 1/0026 (2013.01); H04L 5/0055 (2013.01); H04L 5/006 (2013.01); H04W 72/54 (2023.01)] 25 Claims
OG exemplary drawing
 
22. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
determine downlink (DL) channel state information for a DL channel; and
transmit a first sounding reference signal (SRS) and a second SRS, associated with an uplink (UL) channel, wherein the second SRS is precoded based at least in part on (i) the DL channel state information and (ii) an occurrence of a partial reciprocity scenario between the DL channel and the UL channel.