公开(公告)号：US20200099455A1

公开(公告)日：2020-03-26

申请号：US16695842

申请日：2019-11-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianbing SUN ,  Wei LIU ,  Zhenqing ZHAO ,  Mengying HE

IPC: H04B10/80 ,  H04Q11/00

Abstract: This application discloses an optical power compensation method and a device, and relate to the communications field. A specific solution comprises: a first node obtains a first optical power and a first timepoint, receives at least two second optical powers sent by a second node, obtains second timepoints corresponding with the at least two second optical powers, where the second timepoint is a timepoint at which the first node receives the second optical power, and determines a target timepoint from the second timepoints according to a preset delay and the first timepoint; the first node determines a variation of a span loss according to a target optical power and the first optical power, where the target optical power is a second optical power corresponding to the target timepoint, and adjusts a gain value and/or an attenuation value of the first node according to the variation of the span loss.