公开(公告)号：US20180340777A1

公开(公告)日：2018-11-29

申请号：US15771770

申请日：2016-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang

IPC: G01C21/16 ,  G01S5/02 ,  H04W64/00

Abstract: A method includes obtaining a moving track shape of a second device that is presented before and after a wireless communication connection between the second device and the first device is broken, and a moving track of the second device presented before the wireless communication coupling between the second device and the first device is broken, and matching the moving track shape of the second device presented before and after the wireless communication connection between the second device and the first device is broken and the moving track of the second device presented before the wireless communication connection between the second device and the first device is broken to determine a moving track of the second device presented after the wireless communication connection between the second device and the first device is broken.

公开(公告)号：US10132914B2

公开(公告)日：2018-11-20

申请号：US15517774

申请日：2014-10-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yajun Zhang ,  Xiaoping Zhang ,  Yu Zhu

IPC: G01S5/02 ,  H04M1/725 ,  H04W4/029 ,  H04W4/02

Abstract: A target device positioning method and a mobile terminal are provided. The mobile terminal determines, according to obtained measurement signals sent by a target device from a trigger moment to a current measurement moment, azimuths of the target device relative to the mobile terminal at the moments, obtains an original motion trail of the target device from the trigger moment to the current measurement moment, determines an effective motion trail of the target device according to the original motion trail and change rates of the azimuths of the target device relative to the mobile terminal at the moments, performs matching with a map according to an azimuth of the target device relative to the mobile terminal at the current measurement moment and the effective motion trail of the target device, to determine location information of the target device, and displays the location information of the target device.

公开(公告)号：US20170238274A1

公开(公告)日：2017-08-17

申请号：US15519062

申请日：2014-10-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang

IPC: H04W64/00 ,  H04W28/10 ,  H04L12/26 ,  H04W72/00

CPC classification number: H04W64/00 ,  H04L43/16 ,  H04W28/10 ,  H04W28/18 ,  H04W48/16 ,  H04W72/005 ,  H04W72/12 ,  H04W88/02

Abstract: A method includes receiving, in at least one broadcast receiving period, a broadcast packet sent by another terminal; determining, according to the broadcast packet sent by the another terminal, a channel environment parameter of an area in which the terminal is located, where the channel environment parameter includes packet time density and/or a packet sending success rate; and determining, according to the channel environment parameter, a sending frequency for sending a broadcast packet in a broadcast sending period after the at least one broadcast receiving period by the terminal.

公开(公告)号：US20210011813A1

公开(公告)日：2021-01-14

申请号：US17036705

申请日：2020-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang ,  Yaokun Zhang ,  Quanxi Zhao

IPC: G06F11/14 ,  H04W12/00 ,  H04W24/04 ,  H04W36/30 ,  H04W84/18

Abstract: This application disclose an information backup method and a related device, to ensure continuity of a user service. The method is applied to a communications system including a primary device, a secondary device, and a cloud device, and the method is performed by the primary device. The method includes: sending a first identity notification to the cloud device, where the first identity notification is a notification indicating that the primary device has a primary device identity; and uploading obtained first user information to the cloud device when determining that a communication status of the cloud device is normal, where the first user information is stored by the cloud device and provided to the secondary device, and the first user information is to-be-backed-up information of user equipment that gets online from the primary device when the communication status of the cloud device is normal.

公开(公告)号：US20180202830A1

公开(公告)日：2018-07-19

申请号：US15745911

申请日：2016-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang ,  Yajun Zhang

IPC: G01C22/00

CPC classification number: G01C22/006 ,  G01C22/00

Abstract: A step counting method, a device, and a terminal, where the method includes obtaining, by a first device, step counting data of at least two devices carried by a same user, where the first device is one of the at least two devices, or the first device is different from the at least two devices, and determining, by the first device, a quantity of steps of the user according to the step counting data of the at least two devices. In the method, the quantity of steps of the user is determined according to the step counting data of the at least two devices of the same user in order to avoid a step counting error caused when a single device performs step counting, thereby improving step counting accuracy.

公开(公告)号：US20170332201A1

公开(公告)日：2017-11-16

申请号：US15529461

申请日：2014-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang ,  Yajun Zhang

IPC: H04W4/02 ,  H04W48/04 ,  H04L5/14

CPC classification number: H04W4/026 ,  G01S3/043 ,  G01S3/40 ,  G01S5/02 ,  H04L5/1438 ,  H04W48/04

Abstract: A method includes: determining a reference direction for orientation; when a first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value according to the received wireless signal; determining a position having greatest shadow fading of the first device according to the obtained link quality parameter value, and using a pointing direction of the position having greatest shadow fading of the first device as a first pointing direction; and determining, according to an included angle θ1 between the reference direction and the first pointing direction and an included angle θ2 between the reference direction and a second pointing direction, a direction in which the second device is located, where the second pointing direction is a pointing direction of the first device.

公开(公告)号：US20170234980A1

公开(公告)日：2017-08-17

申请号：US15502004

申请日：2014-08-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang

IPC: G01S13/46 ,  G01S5/02

CPC classification number: G01S13/46 ,  G01S5/0263 ,  G01S5/0294 ,  G01S5/12

Abstract: A positioning method and a mobile terminal in order to improve track fitting precision, eliminate erroneous track determining, improve a positioning presentation effect, and automatically set a suitable positioning frequency. The method includes determining, by the mobile terminal, an expected journey L, where the expected journey is an expected value of a distance traveled by the mobile terminal between two consecutive times of positioning, obtaining a speed value v of the mobile terminal, adjusting a positioning frequency according to the expected journey L and the speed value v of the mobile terminal such that a deviation of a distance traveled by the mobile terminal between two consecutive times of positioning from the expected journey L is less than a specified threshold, and performing positioning according to an adjusted positioning frequency.