US 12,255,841 B2
Uplink subband precoding via linear combination of frequency domain bases
Chenxi Hao, Beijing (CN); Yu Zhang, San Diego, CA (US); Liangming Wu, Beijing (CN); Qiaoyu Li, Beijing (CN); Chao Wei, Beijing (CN); Hao Xu, Beijing (CN); Peter Gaal, San Diego, CA (US); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/767,378
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Nov. 1, 2019, PCT No. PCT/CN2019/115010
§ 371(c)(1), (2) Date Apr. 7, 2022,
PCT Pub. No. WO2021/081981, PCT Pub. Date May 6, 2021.
Prior Publication US 2023/0155763 A1, May 18, 2023
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0048 (2013.01) [H04L 5/0053 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A method for wireless communications by a user equipment (UE), comprising:
receiving, from a network entity, information indicating at least one of one or more sets of one or more frequency domain (FD) bases and linear combination coefficients, wherein the information is signaled via at least first and second downlink control information (DCI) transmissions;
determining subband precoding based at least in part on linear combinations of the FD bases based on the linear combination coefficients, wherein the subband precoding maps physical uplink shared channel (PUSCH) layers to antenna ports; and
transmitting a PUSCH with the subband precoding.