公开(公告)号：US20210175993A1

公开(公告)日：2021-06-10

申请号：US17179735

申请日：2021-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Liu ,  Li Kuang ,  Haoyu Feng ,  Lvchuan Zhang

IPC: H04J14/02 ,  H04B10/079 ,  H04B10/25 ,  H04B10/27 ,  G06N3/04 ,  G06N3/08

Abstract: A method for establishing a data model and an apparatus, where a network element may create an optical signal group that includes optical signals with different wavelengths. After selecting a first optical signal group and obtaining first data of the first optical signal group, the network element may reflect, based on a first model established based on the first data of the first optical signal group, a noise coefficient and a gain that are obtained after an optical signal in the optical signal group of different wavelength combinations passes through the network element.

公开(公告)号：US11483090B2

公开(公告)日：2022-10-25

申请号：US17179735

申请日：2021-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Liu ,  Li Kuang ,  Haoyu Feng ,  Lvchuan Zhang

IPC: H04B10/27 ,  H04J14/02 ,  G06N3/04 ,  G06N3/08 ,  H04B10/079 ,  H04B10/25

Abstract: A method for establishing a data model and an apparatus, where a network element may create an optical signal group that includes optical signals with different wavelengths. After selecting a first optical signal group and obtaining first data of the first optical signal group, the network element may reflect, based on a first model established based on the first data of the first optical signal group, a noise coefficient and a gain that are obtained after an optical signal in the optical signal group of different wavelength combinations passes through the network element.

公开(公告)号：US12261771B2

公开(公告)日：2025-03-25

申请号：US17705998

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yixiao Chen ,  Haoyu Feng ,  Kaixuan Yang ,  Gang Xie ,  Hao Li

IPC: H04L45/28 ,  H04L45/50

Abstract: The disclosed apparatuses and methods are directed to data plane restoration in a network. A method comprises receiving a label-switched path (LSP) failure notification indicating a failure in a network; generating, by a node of the network, a fast-restoration (FR) message and transmitting the FR message to a second node of the message forwarding path. The FR message comprises: a plurality of forwarding instruction objects (FIOs) having forwarding instructions for the FR message for each node of a message forwarding path; and a plurality of label-switched path objects (LSPOs) having a restoration LSP data for each node of a protection detour path. Another method comprises receiving the FR message; generating a modified FR message based on the FR message; and transmitting the modified FR message to another node of the message forwarding path based on the FIO, prior to processing the FR message by the node.