公开(公告)号：US20190293807A1

公开(公告)日：2019-09-26

申请号：US16440957

申请日：2019-06-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi ZHANG ,  Guoqing ZHANG ,  Feng ZHOU ,  Quanfeng ZHANG

IPC: G01S19/48 ,  H04W64/00 ,  H04L5/00 ,  H04B17/27

Abstract: Embodiments provide a positioning method, an assistant site, and a system, to improve positioning accuracy of a mobile terminal. The method according to the embodiments of the present invention includes: generating, by an assistant site, a downlink assisted positioning signal; and sending, by the assistant site, the downlink assisted positioning signal to a mobile terminal. The downlink assisted positioning signal can enable a base station to determine position information of the mobile terminal based on a measurement result obtained by the mobile terminal by measuring the downlink assisted positioning signal.

公开(公告)号：US20190313546A1

公开(公告)日：2019-10-10

申请号：US16448296

申请日：2019-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guoqing ZHANG ,  Jiangtao WANG ,  Liang GAO

IPC: H05K7/14

Abstract: An alternating current/direct current input device includes an appliance input socket and an information and communications technology (ICT) device. The ICT device is powered by the appliance input socket. The appliance input socket includes a ground contact, a positive electrode contact, a negative electrode contact, and a signal switch. A contact depth of the signal switch in the appliance input socket is less than a contact depth of the positive electrode contact or the negative electrode contact in the appliance input socket. The signal switch is configured to generate a control signal when a direct current connector is separated from the appliance input socket. The control signal can be used to enable the ICT device to disconnect the appliance input socket from a conductive electrode of the direct current connector after the ICT device enters a no load state.

公开(公告)号：US20210345508A1

公开(公告)日：2021-11-04

申请号：US17373313

申请日：2021-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guoqing ZHANG ,  Jiangtao WANG ,  Liang GAO

IPC: H05K7/14 ,  H01R13/10 ,  H01R13/04 ,  H01R13/71 ,  H02M3/335

Abstract: An alternating current/direct current input device includes an appliance input socket and an information and communications technology (ICT) device. The ICT device is powered by the appliance input socket. The appliance input socket includes a ground contact, a positive electrode contact, a negative electrode contact, and a signal switch. A contact depth of the signal switch in the appliance input socket is less than a contact depth of the positive electrode contact or the negative electrode contact in the appliance input socket. The signal switch is configured to generate a control signal when a direct current connector is separated from the appliance input socket. The control signal can be used to enable the ICT device to disconnect the appliance input socket from a conductive electrode of the direct current connector after the ICT device enters a no load state.