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    FAULT LOCATING METHOD, APPARATUS, AND SYSTEM
    1.
    发明申请
    FAULT LOCATING METHOD, APPARATUS, AND SYSTEM 有权

    公开(公告)号：US20230052962A1

    公开(公告)日：2023-02-16

    申请号：US17976558

    申请日：2022-10-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhenhua Dong ,  Xiaolong Dong

    IPC: H04B10/071 ,  H04B10/61 ,  H04B10/077

    Abstract: This application relates to the field of fiber-optic communication technologies, and provides a fault locating method, apparatus, and system. The method includes: obtaining a first correspondence between a receive time and receive power during reverse backhaul that occurs when a test optical signal that can be reflected by a reflection component disposed at each port of at least one stage of optical splitter is in downlink transmission in an ODN, where reverse backhaul includes backscatter and reflection or includes backscatter; determining, based on the first correspondence, a second correspondence between a transmission distance and receive power during reverse backhaul that occurs when a test optical signal is in downlink transmission in an optical fiber between each port of the at least one stage of optical splitter and a component connected to the port; and locating a fault in the ODN based on the second correspondence.

    Fault locating method, apparatus, and system
    2.
    发明授权
    Fault locating method, apparatus, and system 有权

    公开(公告)号：US12231162B2

    公开(公告)日：2025-02-18

    申请号：US17976558

    申请日：2022-10-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhenhua Dong ,  Xiaolong Dong

    IPC: H04B10/071 ,  H04B10/077 ,  H04B10/61

    Abstract: This application relates to the field of fiber-optic communication technologies, and provides a fault locating method, apparatus, and system. The method includes: obtaining a first correspondence between a receive time and receive power during reverse backhaul that occurs when a test optical signal that can be reflected by a reflection component disposed at each port of at least one stage of optical splitter is in downlink transmission in an ODN, where reverse backhaul includes backscatter and reflection or includes backscatter; determining, based on the first correspondence, a second correspondence between a transmission distance and receive power during reverse backhaul that occurs when a test optical signal is in downlink transmission in an optical fiber between each port of the at least one stage of optical splitter and a component connected to the port; and locating a fault in the ODN based on the second correspondence.

    Port Identification Method and Apparatus
    3.
    发明公开
    Port Identification Method and Apparatus 审中-公开

    公开(公告)号：US20230261757A1

    公开(公告)日：2023-08-17

    申请号：US18308308

    申请日：2023-04-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhenhua Dong ,  Xiaolong Dong ,  Chao Jin

    IPC: H04B10/572 ,  H04B10/294

    CPC classification number: H04B10/572 ,  H04B10/294

    Abstract: This application provides a port identification method. The method includes: obtaining reflection information of reflection peaks formed by each ONT by separately reflecting test light when the test light provided by a wavelength-tunable device is transmitted in the PON; determining, based on the reflection information of the reflection peaks, a port of a splitter corresponding to each reflection peak group, where each reflection peak group includes reflection peaks formed by a same ONT by reflecting the test light; and determining, based on first transmission information of at least one reflection peak in each reflection peak group, the port of the splitter corresponding to each reflection peak group, and second transmission information between each ONT and an OLT, a port corresponding to each ONT in the splitter. According to this application, port identification efficiency can be improved.

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