Smart remote node optical network unit and operation method thereof

Patent metadata

Field	Value
Publication number	US-2016277102-A1
Application number	US-201615070778-A
Country	US
Kind code	A1
Filing date	Mar 15, 2016
Priority date	Mar 17, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

Disclosed is a smart remote node optical network node including an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit, an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto, and a control unit connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.

First claim

What is claimed is:

1 . A smart remote node optical network node comprising:
an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit; an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto; and a control unit connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.

2 . The smart remote node optical network node of claim 1 , further comprising an environment sensor unit configured to detect surrounding environment information of the smart remote node optical network node to provide the surrounding environment information to the control unit.

3 . The smart remote node optical network node of claim 1 , further comprising a communication module configured to provide data generated in the recognition and monitoring operation of the remote node to an optical distribution network integrated management server through a communication line.

4 . The smart remote node optical network node of claim 1 , wherein the monitoring light signal is transmitted to an indoor optical network terminal.

5 . The smart remote node optical network node of claim 1 , wherein the optical layer monitoring unit is provided with an optical time domain reflectometry (OTDR) module configured to transmit the monitoring light signal and receive a reflective monitoring light signal.

6 . An operation method in smart remote node optical network node, the operation method comprising:
installing, in a smart remote node optical network node, an optical layer monitoring unit configured to transmit a monitoring light signal to an optical network unit through an optical switch and receive a monitoring light signal reflected from the optical network unit; installing an infra recognition unit configured to recognize whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto; receiving the optical connector identification number from the infra recognition unit; and analyzing a monitoring light signal reflected from the optical layer monitoring unit to perform monitoring on an optical communication link of the remote node.

7 . The operation method of claim 6 , wherein the monitoring signal has a wavelength of 1625 nm or longer for minimizing an influence on a signal wavelength of data.

8 . The operation method of claim 6 , wherein at a time of analyzing the monitoring signal, at least one of temperature, humidity, movement detection, luminance, and GPS information is referred to.

9 . The operation method of claim 6 , wherein the data handled in the remote node operation method is at least one of resource data related to an operation of the smart remote node and basic information, actually measured data, and generated event data.

10 . A smart remote node optical network node comprising:
an optical layer monitoring unit configured to transmit a monitoring light signal to an indoor optical network terminal and receive a monitoring signal reflected by the indoor optical network terminal through an optical switch; an infra recognition unit configured to recognize, through an optical cable, whether an optical connector, which is connected to the indoor optical network terminal, is connected to an output port of the remote node and an identification number of the optical connector when the optical connector is connected thereto; and a main processor connected to the optical layer monitoring unit and the infra recognition unit and configured to control recognition and monitoring operations of the remote node according to a remote node application.

11 . The smart remote node optical network node of claim 10 , wherein optical communication data applied through an optical line terminal is transmitted to the indoor optical network terminal through an optical splitter.

12 . The smart remote node optical network node of claim 10 , wherein the monitoring light signal reflected from the indoor optical network terminal is provided to an optical line terminal, which communicates with an optical distribution network integrated management server through an optical splitter.

13 . A remote node operation method in a smart remote node optical network node, the remote node operation method comprising:
installing an infra recognition unit and an optical layer monitoring unit in a smart remote node; recognizing whether an optical connector is connected to an output port of a remote node and an identification number of the optical connector when the optical connector is connected thereto; controlling an optical switch connected to the optical layer monitoring unit to enable the monitoring light signal to be transmitted through an optical communication link on a basis of the recognized identification number of the optical connector; receiving the monitoring light signal reflected from the optical communication link through the optical layer monitoring unit and analyzing whether the optical communication link is normal; and storing the analyzed information or transmitting the analyzed information through a communication line.

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Kim Jae In
• Kim Sung Chang
• Kim Geun Yong
• Lee Dongsoo

Classifications

• H04B10/071

  using a reflected signal, e.g. using optical time domain reflectometers [OTDR] · CPC title

• H04B10/0775 Primary

  Performance monitoring and measurement of transmission parameters · CPC title

• H04B10/0779

  Monitoring line transmitter or line receiver equipment · CPC title