公开(公告)号：US20240153375A1

公开(公告)日：2024-05-09

申请号：US18263623

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Dong ,  Haowei Xu ,  Qingfeng Xue ,  Erli Wang

IPC: G08C17/02 ,  G06F3/0484 ,  H04L12/28

CPC classification number: G08C17/02 ,  G06F3/0484 ,  H04L12/282 ,  G08C2201/32 ,  H04L2012/2841

Abstract: A method is implemented by an electronic device to mark a position of a home device. The method includes that the electronic device receives a first operation of a user, where the first operation is used to trigger the electronic device to mark a position of a first home device in a plurality of home devices. In response to the first operation, the electronic device obtains, by using a UWB chip, spatial position-attitude information of the electronic device when the electronic device separately points to the first home device in n orientations, and calculates spatial position information of the first home device based on the spatial position-attitude information of the electronic device in the n orientations.

公开(公告)号：US20240103113A1

公开(公告)日：2024-03-28

申请号：US18283345

申请日：2022-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Qian ,  Wei Dong ,  Haowei Xu ,  Qingfeng Xue ,  Erli Wang

IPC: G01S5/02 ,  H04W64/00

CPC classification number: G01S5/021 ,  H04W64/00

Abstract: This application relates to a UWB base station anomaly detection method. The method includes: obtaining a first distance that is between each of the N UWB base stations and the UWB tag and that is obtained through measurement; obtaining an estimated value of spatial coordinates of the UWB tag in the first coordinate system based on the first distance and spatial coordinates of each UWB base station in the first coordinate system; obtaining a second distance between each UWB base station and the UWB tag based on the estimated value and the spatial coordinates of each UWB base station in the first coordinate system; and determining, based on the first distance and the second distance that correspond to each UWB base station, whether a UWB base station in the N UWB base stations is abnormal.

公开(公告)号：US11412474B2

公开(公告)日：2022-08-09

申请号：US17014098

申请日：2020-09-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Dong ,  Hua Fan ,  Xiaojie Li ,  Fei Jiao

IPC: H04W64/00 ,  H04W88/08 ,  H04W24/10 ,  H04B17/336

Abstract: A positioning method includes: sending, by a base station, indication information to a plurality of UEs, where the plurality of UEs have an MDT function in a cell covered by a to-be-positioned RRU, and the indication information is used to indicate the plurality of UEs to periodically report location information; obtaining, by the base station within each of at least one time period, time-of-arrival ToA measurement values of N UEs, where the N UEs are some UEs that report the location information in the plurality of UEs, N≥1, and N is an integer; and calculating, by the base station, a location of the to-be-positioned RRU based on M ToA measurement values obtained within the at least one time period and M pieces of location information that are in the received location information and that respectively correspond to the M ToA measurement values, where M≥3, and M is an integer.

公开(公告)号：US20180054470A1

公开(公告)日：2018-02-22

申请号：US15559816

申请日：2015-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Chen ,  Wei Dong

IPC: H04L29/08 ,  H04N21/222 ,  H04L29/06 ,  H04L5/00

CPC classification number: H04L67/06 ,  H04L5/0064 ,  H04L29/06469 ,  H04N21/2223 ,  H04N21/238 ,  H04N21/24 ,  H04N21/2402

Abstract: A streaming media resource downloading method includes: determining that a first media file is a to-be-downloaded media file according to first network bandwidth, where the first media file is included in a streaming media resource corresponding to the first network bandwidth, and the first media file includes N data blocks; and after an (n−1)th data block in the first media file is downloaded, and before an nth data block in the first media file is downloaded, determining a length of the to-be-downloaded nth data block according to network bandwidth reduction times in an executed first media file downloading process, where 1≦n≦N. Therefore, a length of a to-be-downloaded data block is adjusted according to the network bandwidth reduction times in the first media file downloading process, so that video playing can better adapt to a bandwidth change, and streaming media resource switching times are reduced.