Invention Grant
- Patent Title: Systems and methods for updating beamforming codebooks for angle-of-arrival estimation using compressive sensing in wireless communications
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Application No.: US17538290Application Date: 2021-11-30
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Publication No.: US11804890B2Publication Date: 2023-10-31
- Inventor: Yanru Tang , Hongbing Cheng , Kee-Bong Song
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Main IPC: H04B7/08
- IPC: H04B7/08

Abstract:
A wireless communication device includes: a processing circuit configured to: receive, from an antenna array during a previous period, a first directional electromagnetic signal including beam sweeping reference symbols of a previous beam sweeping period; compute an estimated combined channel; estimate a dominant angle-of-arrival (AoA) of the first directional electromagnetic signal based on the estimated combined channel and a previous beamforming codebook including two or more beamforming vectors corresponding to different AoAs; construct an updated beamforming codebook based on the estimated dominant AoA and one or more remaining AoAs spaced apart from the estimated dominant AoA; receive, at the antenna array during a current period, a second directional electromagnetic signal including data symbols; determine a beamforming vector for data reception of the second directional electromagnetic signal based on the updated beamforming codebook; and detect the data symbols in the second directional electromagnetic signal based on the determined beamforming vector.
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