公开(公告)号：US20210088569A1

公开(公告)日：2021-03-25

申请号：US17118221

申请日：2020-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Tang ,  Zhiwei Zhang ,  Feng Li

IPC: G01R29/08 ,  H01Q3/28 ,  H01Q3/34 ,  G01R29/10

Abstract: A measurement method for a device includes, for each antenna group other than a target antenna group in an antenna array, determining compensation values of the antenna group based on characteristic parameters of the antenna group and characteristic parameters of the target antenna group, and adjusting, based on the compensation values of the antenna group, an electromagnetic wave transmitted by each antenna unit in the antenna group such that electromagnetic waves transmitted by all antenna units in the antenna array have a same phase or amplitude when the electromagnetic waves arrive at a measurement probe of a second device, where the electromagnetic wave is used to measure an over-the-air beam parameter of the first device, and a distance between the first device and the measurement probe is less than a far-field boundary distance.

公开(公告)号：US11309977B2

公开(公告)日：2022-04-19

申请号：US17111319

申请日：2020-12-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Tang ,  Zhiwei Zhang ,  Feng Li

IPC: H04B17/12 ,  H04B17/21

Abstract: Embodiments of the present application relate to the communications field and disclose a calibration method and a communications device, capable of compensating for measured amplitude and phase results. The method includes determining a position error of each of the N antenna groups, and then determining an actual position of the antenna group based on a target position of the antenna group and the position error of the antenna group. A phase compensation value and/or an amplitude compensation value of the antenna group are determined for a target probe of the second device based on the actual position of the antenna group. Based on the phase compensation value and/or the amplitude compensation value of the antenna group, compensating is performed for a phase result and/or an amplitude result that are/is obtained by the target probe of the second device by measuring a signal transmitted by the antenna group.

公开(公告)号：US11933828B2

公开(公告)日：2024-03-19

申请号：US17118221

申请日：2020-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Tang ,  Zhiwei Zhang ,  Feng Li

IPC: G01R29/08 ,  G01R29/10 ,  H01Q3/28 ,  H01Q3/34

CPC classification number: G01R29/0892 ,  G01R29/10 ,  H01Q3/28 ,  H01Q3/34

Abstract: A measurement method for a device includes, for each antenna group other than a target antenna group in an antenna array, determining compensation values of the antenna group based on characteristic parameters of the antenna group and characteristic parameters of the target antenna group, and adjusting, based on the compensation values of the antenna group, an electromagnetic wave transmitted by each antenna unit in the antenna group such that electromagnetic waves transmitted by all antenna units in the antenna array have a same phase or amplitude when the electromagnetic waves arrive at a measurement probe of a second device, where the electromagnetic wave is used to measure an over-the-air beam parameter of the first device, and a distance between the first device and the measurement probe is less than a far-field boundary distance.