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Title:
METHOD, DEVICE, AND SYSTEM FOR PORT IDENTIFICATION
Document Type and Number:
WIPO Patent Application WO/2021/253878
Kind Code:
A1
Abstract:
The present application belongs to the technical field of optical communication, and provides a method, device and system for port identification. The method comprises: obtaining a first wavelength that respectively corresponds to at least one beam splitter in an ODN, for each beam splitter, the first wavelength being the wavelength of a test optical signal having the maximum receiving power after being reflected by a reflective part of a target port of the beam splitter during transmission in the ODN; according to the first wavelength corresponding to the beam splitter and a calibrated center wavelength of the reflective part of the target port of the beam splitter, determining the offset of the center wavelength of the reflective part of each port of the beam splitter; according to the offset corresponding to each port of the beam splitter, determining the current center wavelength of the reflective part of each port of the beam splitter; and according to the current center wavelength of the reflective part of each port of the beam splitter, determining a port that is connected by a target ONT in the ODN. By using the present application, the connection relationship between ONTs and beam splitters and the connection relationship between ONTs and ports of a beam splitter can be accurately identified.

Inventors:
DONG ZHENHUA (CN)
DONG XIAOLONG (CN)
QI BIAO (CN)
Application Number:
PCT/CN2021/079724
Publication Date:
December 23, 2021
Filing Date:
March 09, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q11/00
Foreign References:
CN111885434A2020-11-03
CN110996193A2020-04-10
CN110933531A2020-03-27
CN104579459A2015-04-29
CN103002359A2013-03-27
US20150318930A12015-11-05
CN202010559502A2020-06-18
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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