公开(公告)号：US12256181B2

公开(公告)日：2025-03-18

申请号：US17859789

申请日：2022-07-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiquan Liao ,  Zhiqiang Chen

IPC: H04B10/00 ,  H04B10/25 ,  H04B10/516 ,  H04B10/564 ,  H04Q11/00 ,  H04J14/00

Abstract: Embodiments of the present application disclose an optical fiber connection detection method and a related device. A first network device obtains first label information, which indicates a target optical output interface, and the target optical output interface is one of at least one optical output interface of the first network device; the first network device generates an optical signal, where a wavelength of the optical signal is within a wavelength range corresponding to the target optical output interface; the first network device modulates the first label information onto the optical signal, to generate a modulated optical signal; and the first network device sends the modulated optical signal from the target optical output interface to a target optical input interface of a second network device, to detect an optical fiber connection relationship between the target optical output interface and the target optical input interface.

公开(公告)号：US20220345800A1

公开(公告)日：2022-10-27

申请号：US17859789

申请日：2022-07-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiquan Liao ,  Zhiqiang Chen

IPC: H04Q11/00 ,  H04B10/516 ,  H04B10/564 ,  H04B10/25

Abstract: Embodiments of the present application disclose an optical fiber connection detection method and a related device. A first network device obtains first label information, which indicates a target optical output interface, and the target optical output interface is one of at least one optical output interface of the first network device; the first network device generates an optical signal, where a wavelength of the optical signal is within a wavelength range corresponding to the target optical output interface; the first network device modulates the first label information onto the optical signal, to generate a modulated optical signal; and the first network device sends the modulated optical signal from the target optical output interface to a target optical input interface of a second network device, to detect an optical fiber connection relationship between the target optical output interface and the target optical input interface.

公开(公告)号：US10778570B2

公开(公告)日：2020-09-15

申请号：US15834683

申请日：2017-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Yan ,  Zhiquan Liao ,  Tianhai Chang ,  Hongtao Lu ,  Min Chen ,  Qian Xiong

IPC: H04L12/703 ,  H04L12/24 ,  H04W76/19 ,  H04W76/18 ,  H04W24/04

Abstract: In a network protection method, a network node, and a communications system provided in embodiments of the present disclosure, when signal degrade or signal fail occurs in a service transmission path, a communication status of a source node of a current protection segment is obtained, and whether to perform protection switching is determined according to the communication status of the source node and a communication status of a local communication path. This can avoid erroneous switching to some extent, thereby improving protection switching accuracy of a communications network.

公开(公告)号：US20180109445A1

公开(公告)日：2018-04-19

申请号：US15834683

申请日：2017-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Yan ,  Zhiquan Liao ,  Tianhai Chang ,  Hongtao Lu ,  Min Chen ,  Qian Xiong

IPC: H04L12/703 ,  H04W24/04 ,  H04L12/24

Abstract: In a network protection method, a network node, and a communications system provided in embodiments of the present disclosure, when signal degrade or signal fail occurs in a service transmission path, a communication status of a source node of a current protection segment is obtained, and whether to perform protection switching is determined according to the communication status of the source node and a communication status of a local communication path. This can avoid erroneous switching to some extent, thereby improving protection switching accuracy of a communications network.