公开(公告)号：US20230421416A1

公开(公告)日：2023-12-28

申请号：US18340107

申请日：2023-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Songzhen Yang ,  Te Wei ,  Zixiang Ma

IPC: H04L25/03 ,  H04L5/00 ,  H04W64/00 ,  H04W72/54 ,  H04W72/1268 ,  H04B17/318

CPC classification number: H04L25/03286 ,  H04L5/0048 ,  H04W64/003 ,  H04W72/54 ,  H04W72/1268 ,  H04B17/318

Abstract: A method for determining a remote radio device and a distributed AP are provided. The method includes: A baseband device determines parameters of uplink signals received by N remote radio devices, where N is a natural number greater than 1. The baseband device selects, based on the parameters, at least one remote radio device from the N remote radio devices as a remote radio device in a target set. The baseband device performs decoding based on an uplink signal received by the remote radio device in the target set, or positions a terminal device based on an uplink signal received by the remote radio device in the target set.

公开(公告)号：US12237950B2

公开(公告)日：2025-02-25

申请号：US18340107

申请日：2023-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Songzhen Yang ,  Te Wei ,  Zixiang Ma

IPC: H04W64/00 ,  H04B17/318 ,  H04L5/00 ,  H04L25/03 ,  H04W72/1268 ,  H04W72/54

Abstract: A method for determining a remote radio device and a distributed AP are provided. The method includes: A baseband device determines parameters of uplink signals received by N remote radio devices, where N is a natural number greater than 1. The baseband device selects, based on the parameters, at least one remote radio device from the N remote radio devices as a remote radio device in a target set. The baseband device performs decoding based on an uplink signal received by the remote radio device in the target set, or positions a terminal device based on an uplink signal received by the remote radio device in the target set.

公开(公告)号：US20220295433A1

公开(公告)日：2022-09-15

申请号：US17689309

申请日：2022-03-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zixiang Ma ,  Zhihui Zhou

IPC: H04W56/00

Abstract: A time measurement method includes that a first device receives a first packet from a second device using a first antenna. The first device transmits a second packet to the second device using a second antenna. The first device receives an indication for a first transceiving delay from the second device, where the first transceiving delay is a delay from a time at which the second device transmits the first packet to a time at which the second device receives the second packet. The first device determines a round-trip time (RTT) between the first device and the second device based on a calibration delay from the second antenna to the first antenna, a recording moment at which the first device receives the first packet, a recording moment at which the first device transmits the second packet, and the first transceiving delay.

公开(公告)号：US11805490B2

公开(公告)日：2023-10-31

申请号：US17689309

申请日：2022-03-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zixiang Ma ,  Zhihui Zhou

IPC: H04W56/00

CPC classification number: H04W56/005

Abstract: A time measurement method includes that a first device receives a first packet from a second device using a first antenna. The first device transmits a second packet to the second device using a second antenna. The first device receives an indication for a first transceiving delay from the second device, where the first transceiving delay is a delay from a time at which the second device transmits the first packet to a time at which the second device receives the second packet. The first device determines a round-trip time (RTT) between the first device and the second device based on a calibration delay from the second antenna to the first antenna, a recording moment at which the first device receives the first packet, a recording moment at which the first device transmits the second packet, and the first transceiving delay.

公开(公告)号：US20230111449A1

公开(公告)日：2023-04-13

申请号：US17963348

申请日：2022-10-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le Niu ,  Zixiang Ma ,  Shuaishuai Zhang ,  Chun Pan

IPC: H04W56/00

Abstract: A time calibration method includes a first station receives a first frame from a second station; the first station stores a receiving moment of the first frame; the first station receives a second frame from the second station, where the second frame includes a sending moment at which the second station sends the first frame; and the first station obtains a clock offset between a first clock of the first station and a second clock of the second station based on the receiving moment of the first frame and the sending moment of the first frame.