公开(公告)号：US20190320403A1

公开(公告)日：2019-10-17

申请号：US16455080

申请日：2019-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Zhang ,  Feng Zhou ,  Yaxin Wu ,  Jiao He

IPC: H04W56/00 ,  H04W16/28 ,  H04W24/10 ,  H04W64/00

Abstract: A channel latency determining method, a positioning method, and device, the method including obtaining, by a communications device, device location information of a calibration user equipment (UE), calculating a propagation delay according to the device location information and prestored location information of an antenna, where the propagation delay is a time between transmitting a radio signal by the calibration UE and receiving the radio signal by the antenna, calculating a time of arrival according to the radio signal transmitted by the calibration UE to the antenna, where the time of arrival is a time obtained through calculation according to a time of arrival (TOA) estimation algorithm, and determining a channel latency according to the propagation delay and the time of arrival, where the channel latency is positively correlated with the time of arrival and is negatively correlated with the propagation delay.

公开(公告)号：US11051267B2

公开(公告)日：2021-06-29

申请号：US16455080

申请日：2019-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Zhang ,  Feng Zhou ,  Yaxin Wu ,  Jiao He

IPC: H04W56/00 ,  H04W16/28 ,  H04W24/10 ,  H04W64/00

Abstract: A channel latency determining method, a positioning method, and device, the method including obtaining, by a communications device, device location information of a calibration user equipment (UE), calculating a propagation delay according to the device location information and prestored location information of an antenna, where the propagation delay is a time between transmitting a radio signal by the calibration UE and receiving the radio signal by the antenna, calculating a time of arrival according to the radio signal transmitted by the calibration UE to the antenna, where the time of arrival is a time obtained through calculation according to a time of arrival (TOA) estimation algorithm, and determining a channel latency according to the propagation delay and the time of arrival, where the channel latency is positively correlated with the time of arrival and is negatively correlated with the propagation delay.