The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2023

Filed:

Apr. 28, 2022
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Yuanwu Wang, Wuhan, CN;

Wei Liu, Wuhan, CN;

Fei Chen, Wuhan, CN;

Yufeng Su, Wuhan, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/293 (2013.01); H04B 10/564 (2013.01); H04J 14/02 (2006.01); H04B 10/2537 (2013.01); H04B 10/67 (2013.01);
U.S. Cl.
CPC ...
H04B 10/2933 (2013.01); H04B 10/2537 (2013.01); H04B 10/293 (2013.01); H04B 10/564 (2013.01); H04B 10/672 (2013.01); H04J 14/0221 (2013.01);
Abstract

A method for determining an optical signal power change, wherein the method includes: A first optical signal that includes a plurality of wavelength signals is obtained, where the plurality of wavelength signals are distributed in a plurality of bands. Then, an optical power of each band and a center wavelength signal of each band are detected, and a preset single-wavelength transmit power and a preset coefficient are obtained. Next, an equivalent quantity N of equivalent wavelength signals is determined, and an equivalent wavelength signal corresponding to the first optical signal is determined. Further, a target power that is used to compensate for a first power change value of the first optical signal in transmission over an optical fiber is determined based on the preset coefficient, the equivalent wavelength signal, the equivalent quantity, and the preset single-wavelength transmit power.


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