Title:
FAULT LOCATING METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/218145
Kind Code:
A1
Abstract:
Provided are a fault locating method, apparatus and system, which belong to the technical field of optical fiber communications. The method comprises: acquiring a first correlation between a receiving time and a receiving power of reverse backhaul when a test optical signal that can be reflected by a reflecting component arranged at each port of at least one stage of optical splitter is subjected to downlink transmission in an ODN, wherein the reverse backhaul comprises backscattering and being reflected, or backscattering; determining, according to the first correlation, a second correlation between a transmission distance and a receiving power during the reverse backhaul when the test optical signal is subjected to downlink transmission in an optical fiber between each port of the at least one stage of optical splitter and a device connected to each port; and locating the fault of the ODN according to the second correlation. By using the present application, the fault of an ODN can be accurately located.
Inventors:
DONG ZHENHUA (CN)
DONG XIAOLONG (CN)
DONG XIAOLONG (CN)
Application Number:
PCT/CN2020/132534
Publication Date:
November 04, 2021
Filing Date:
November 28, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q11/00; H04B10/071
Foreign References:
| CN111669221A | 2020-09-15 | |||
| CN103036615A | 2013-04-10 | |||
| CN111010228A | 2020-04-14 | |||
| US20100316372A1 | 2010-12-16 | |||
| US20070116467A1 | 2007-05-24 | |||
| CN202010357617A | 2020-04-29 |
Other References:
See also references of EP 4135219A4
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: