公开(公告)号：US10917870B2

公开(公告)日：2021-02-09

申请号：US16547290

申请日：2019-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chun Pan ,  Zhijian He ,  Yongqian Xu ,  Yungui Wang

IPC: H04W64/00 ,  H04W72/12 ,  G01S3/50

Abstract: An angle of arrival estimation method and device, where a first device: collects a first signal from a second device using a reference antenna and a first antenna group; determines first channel state information (CSI); collects a second signal from the second device using the reference antenna and a second antenna group; determines second CSI; determines a phase difference vector between the first signal and the second signal based on a vector corresponding to the reference antenna in the first CSI and a vector corresponding to the reference antenna in the second CSI; compensates for the second CSI using the phase difference vector; and estimates an angle of arrival of the second device based on the first CSI and compensated second CSI.

公开(公告)号：US20200068523A1

公开(公告)日：2020-02-27

申请号：US16547290

申请日：2019-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chun Pan ,  Zhijian He ,  Yongqian Xu ,  Yungui Wang

IPC: H04W64/00 ,  G01S3/50 ,  H04W72/12

Abstract: An angle of arrival estimation method and device, where a first device: collects a first signal from a second device using a reference antenna and a first antenna group; determines first channel state information (CSI); collects a second signal from the second device using the reference antenna and a second antenna group; determines second CSI; determines a phase difference vector between the first signal and the second signal based on a vector corresponding to the reference antenna in the first CSI and a vector corresponding to the reference antenna in the second CSI; compensates for the second CSI using the phase difference vector; and estimates an angle of arrival of the second device based on the first CSI and compensated second CSI.