US 12,224,822 B2
Method for indicating precoding vector, method for determining precoding vector, and communications apparatus
Xiaohan Wang, Shanghai (CN); Huangping Jin, Shanghai (CN); and Xiaoyan Bi, Ottawa (CA)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Nov. 6, 2023, as Appl. No. 18/502,785.
Application 18/502,785 is a continuation of application No. 17/900,501, filed on Aug. 31, 2022, granted, now 11,848,729.
Application 17/900,501 is a continuation of application No. 17/230,523, filed on Apr. 14, 2021, granted, now 11,456,786, issued on Sep. 27, 2022.
Application 17/230,523 is a continuation of application No. PCT/CN2019/110342, filed on Oct. 10, 2019.
Claims priority of application No. 201811205381.1 (CN), filed on Oct. 16, 2018; and application No. 201811281059.7 (CN), filed on Oct. 30, 2018.
Prior Publication US 2024/0072858 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0469 (2013.01) [H04B 7/0626 (2013.01); H04L 5/0003 (2013.01)] 43 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, from a terminal device, first indication information, wherein the first indication information indicates L1 space domain vectors in a space domain vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices, wherein a precoding vector of one or more frequency domain units is determined by a weighted sum of the T1 space-frequency component matrices, wherein the L1 space domain vectors and the K1 frequency domain vectors correspond to M1 space-frequency component matrices that comprise the T1 space-frequency component matrices, wherein each of the M1 space-frequency component matrices is determined by a different combination of one of the L1 space domain vectors and one of the K1 frequency domain vectors, and wherein M1=L1×K1, M1, L1, K1, and T1 are positive integers, and T1 is less than M1; and
determining the precoding vector of the one or more frequency domain units based on the first indication information.