公开(公告)号：US20230044018A1

公开(公告)日：2023-02-09

申请号：US17970880

申请日：2022-10-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiezuo Zhu ,  Shutian Yuan ,  Wei Ye

IPC: G01S13/32

Abstract: In a distance detection method, a target apparatus receives a first transmit signal from a detection apparatus. The target apparatus generates a first echo signal by modulating some of reflected signals of the first transmit signal to cause a first Doppler shift between the first echo signal and the first transmit signal. The target apparatus emits the first echo signal to the detection apparatus, which derives its distance from the target apparatus based on the first echo signal.

公开(公告)号：US10708087B2

公开(公告)日：2020-07-07

申请号：US16010161

申请日：2018-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Ye ,  Xuzhen Wang ,  Wei Chen ,  Guangsheng Lei

IPC: H04L25/02 ,  H04B10/25 ,  H04L5/00 ,  H04W88/08 ,  H04W92/12

Abstract: Embodiments of the present invention disclose a sounding reference symbol SRS transmission method and a radio remote unit. The method, performed by a radio remote unit, includes: receiving a plurality of pieces of sampled data in a first period by using each antenna of an antenna array; if all of the plurality of pieces of sampled data are the SRS sampled data, buffering the plurality of pieces of sampled data; and reading the plurality of pieces of sampled data from the buffer in a second period, and sending the read plurality of pieces of sampled data to a baseband processing unit, where duration of the second period is longer than duration of the first period. Thus according the embodiments of the present invention, a time for transmitting the SRS sampled data is prolonged, so that bandwidth required for transmitting the SRS sampled data can be reduced.