Title:
METHOD FOR IDENTIFYING CONNECTION PORT OF OPTICAL NETWORK UNIT, RELATED APPARATUSES, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/098330
Kind Code:
A1
Abstract:
Disclosed are a method for identifying a connection port of an ONU, an optical splitter supporting port identification, related devices such as an ONU and an OLT, a PON, and a communication system. When the ONU connected to a certain port of the optical splitter sends an uplink test optical signal, the uplink test optical signal is reflected by a reflector arranged at the port connected to the ONU to form an echo optical signal. There is a correlation between the intensity of the echo optical signal and the reflectivity of the reflector, and there is also a correlation between the reflectivity of the reflector and information of the port where the reflector is located, and therefore, there is a correlation between the intensity of the echo optical signal and the information of the port connected to the ONU. Thereby, the information of the port of the optical splitter connected to the ONU is obtained. Furthermore, a topological structure of the PON can be obtained for facilitating rapid fault positioning.
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Inventors:
YANG SULIN (CN)
Application Number:
PCT/CN2020/112076
Publication Date:
May 27, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/071; H04B10/079
Foreign References:
| CN110996193A | 2020-04-10 | |||
| CN111010228A | 2020-04-14 | |||
| CN104579459A | 2015-04-29 | |||
| CN103002359A | 2013-03-27 | |||
| CN102118658A | 2011-07-06 | |||
| EP1524781B1 | 2008-11-26 |
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