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公开(公告)号：US20190297553A1
公开(公告)日：2019-09-26
申请号：US16438632
申请日：2019-06-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yungui Wang , Fuqing Sun , Ruifeng Wang , Zhijian He
Abstract: A wireless network handover method and apparatus are provided, relating to the communications field, and capable of resolving a problem of a service packet loss during a handover of a terminal. The method includes: obtaining, by a handover device, a distance between a terminal and a current access point, to determine a change trend of the distance between the terminal and the current access point; and if the handover device determines, based on a correspondence between the change trend and a neighboring access point of the current access point, a target access point to which the terminal is to be handed over, handing over, by the handover device, the terminal from the current access point to the target access point. Embodiments of the present invention are applied to a scenario in which a terminal is handed over and roams between Wi-Fi networks on a highway.
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公开(公告)号：US10917870B2
公开(公告)日：2021-02-09
申请号：US16547290
申请日：2019-08-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chun Pan , Zhijian He , Yongqian Xu , Yungui Wang
Abstract: An angle of arrival estimation method and device, where a first device: collects a first signal from a second device using a reference antenna and a first antenna group; determines first channel state information (CSI); collects a second signal from the second device using the reference antenna and a second antenna group; determines second CSI; determines a phase difference vector between the first signal and the second signal based on a vector corresponding to the reference antenna in the first CSI and a vector corresponding to the reference antenna in the second CSI; compensates for the second CSI using the phase difference vector; and estimates an angle of arrival of the second device based on the first CSI and compensated second CSI.
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Patent Agency Ranking
公开(公告)号：US20200068523A1
公开(公告)日：2020-02-27
申请号：US16547290
申请日：2019-08-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chun Pan , Zhijian He , Yongqian Xu , Yungui Wang
Abstract: An angle of arrival estimation method and device, where a first device: collects a first signal from a second device using a reference antenna and a first antenna group; determines first channel state information (CSI); collects a second signal from the second device using the reference antenna and a second antenna group; determines second CSI; determines a phase difference vector between the first signal and the second signal based on a vector corresponding to the reference antenna in the first CSI and a vector corresponding to the reference antenna in the second CSI; compensates for the second CSI using the phase difference vector; and estimates an angle of arrival of the second device based on the first CSI and compensated second CSI.
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4.发明授权公开(公告)号：US11856434B2
公开(公告)日：2023-12-26
申请号：US17126760
申请日：2020-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhijian He , Xiaoyang Xu , Fenglai Wang , Wei Song
Abstract: A signal strength measurement method includes: obtaining, by a first access point (AP), a basic service set identifier (BSSID) of a second AP and a first operating channel, where the first operating channel is an operating channel of the second AP, and a station (STA) is associated with the BSSID of the second AP through the operating channel; and sending, by the first AP, a measurement frame to the STA through the operating channel, where a BSSID value of the measurement frame is the BSSID, the measurement frame indicates the STA to send a measurement response frame of which BS SID value is the BSSID, and the measurement response frame carries a signal strength of the measurement frame measured by the STA.
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公开(公告)号：US20250009308A1
公开(公告)日：2025-01-09
申请号：US18891219
申请日：2024-09-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu Wang , Rong Sheng , Yujia Han , Runsen Wang , Zhijian He
Abstract: Embodiments of this application provide a fever alarm method based on body temperature monitoring and a related device, applied to a wearable device. The method may include: collecting a body temperature of a user in a first time period, where the first time period is time for which the wearable device is attached to skin of the user; determining a temperature monitoring mode that the user is in; and generating a fever alarm when detecting that the body temperature of the user in the first time period meets a fever condition corresponding to the body temperature monitoring mode, where different body temperature monitoring modes correspond to different fever conditions.
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公开(公告)号：US11246076B2
公开(公告)日：2022-02-08
申请号：US16438632
申请日：2019-06-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yungui Wang , Fuqing Sun , Ruifeng Wang , Zhijian He
IPC: H04W36/30 , H04L12/26 , H04W36/00 , H04W36/08 , H04W36/32 , H04W36/38 , H04W36/18 , H04B17/318 , H04W84/12
Abstract: A wireless network handover method and apparatus are provided, relating to the communications field, and capable of resolving a problem of a service packet loss during a handover of a terminal. The method includes: obtaining, by a handover device, a distance between a terminal and a current access point, to determine a change trend of the distance between the terminal and the current access point; and if the handover device determines, based on a correspondence between the change trend and a neighboring access point of the current access point, a target access point to which the terminal is to be handed over, handing over, by the handover device, the terminal from the current access point to the target access point. Forgoing solution is applied to a scenario in which a terminal is handed over and roams between Wi-Fi networks on a highway.
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7.发明申请公开(公告)号：US20210195455A1
公开(公告)日：2021-06-24
申请号：US17126760
申请日：2020-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhijian He , Xiaoyang Xu , Fenglai Wang , Wei Song
Abstract: A signal strength measurement method includes: obtaining, by a first access point (AP), a basic service set identifier (BSSID) of a second AP and a first operating channel, where the first operating channel is an operating channel of the second AP, and a station (STA) is associated with the BSSID of the second AP through the operating channel; and sending, by the first AP, a measurement frame to the STA through the operating channel, where a BSSID value of the measurement frame is the BSSID, the measurement frame indicates the STA to send a measurement response frame of which BS SID value is the BSSID, and the measurement response frame carries a signal strength of the measurement frame measured by the STA.
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