US 12,355,536 B2
Precoding matrix indicator feedback for multiple transmission hypotheses
Min Huang, Beijing (CN); Chao Wei, Beijing (CN); and Hao Xu, Beijing (CN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/793,364
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Jan. 23, 2020, PCT No. PCT/CN2020/073986
§ 371(c)(1), (2) Date Jul. 15, 2022,
PCT Pub. No. WO2021/147078, PCT Pub. Date Jul. 29, 2021.
Prior Publication US 2023/0058460 A1, Feb. 23, 2023
Int. Cl. H04B 7/06 (2006.01)
CPC H04B 7/0639 (2013.01) [H04B 7/0626 (2013.01)] 40 Claims
OG exemplary drawing
 
19. An apparatus for wireless communication, comprising:
one or more processors; and
one or more memories coupled to the one or more processors,
wherein the one or more processors are configured to:
measure downlink (DL) channels received from a plurality of transmission and reception points (TRPs) in a communication system;
determine a plurality of transmission hypotheses based on the measured DL channels from the plurality of TRPs; and
transmit channel state information (CSI) to a network in the communication system, the CSI including a plurality of precoding matrix indicators (PMIs) and having one common spatial domain basis matrix that is common to all of the plurality of transmission hypotheses and a plurality of coefficient matrices that are based on the common spatial domain basis matrix.