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APR (Automatic Power Reduction) protection method and device

A protection device and optical power technology, which is applied in the field of communication, can solve the problems of speed limitation, low reliability, and reduced optical power, etc., and achieve the effect of improving reliability

Active Publication Date: 2010-11-10
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems of reducing optical power by means of signaling interaction in the related art, the reliability is low, and the speed is limited, the main purpose of the present invention is to provide an APR protection method and device to solve at least one of the above problems

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  • APR (Automatic Power Reduction) protection method and device
  • APR (Automatic Power Reduction) protection method and device
  • APR (Automatic Power Reduction) protection method and device

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Embodiment Construction

[0022] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0023] figure 2 is a schematic structural diagram of an APR protection device according to an embodiment of the present invention. like figure 2 As shown, the APR protection device mainly includes: an optical coupler 20 and another board 22 (which may be the aforementioned optical line amplifier).

[0024] The optical coupler 20 is used to couple a part of the optical power to another board of the destination site at the input end of the board of the destination site;

[0025] Another board 22 is used to detect whether a part of the optical power is lower than the threshold, and if so, request the source station to reduce the output optical power.

[0026] Using the above-mentioned APR protecti...

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Abstract

The invention discloses APR (Automatic Power Reduction) protection method and device. The device comprises an optical coupler used for coupling a part of optical power to another board card of a target site at an input end of one board card of the target site; and the device also comprises the another board card used for detecting whether a part of the optical power is lower than a threshold value or not, and if so, a source site is required to reduce output optical power. According to the technical scheme, the problems of lower reliability and limited speed in a correlation technique adopting a signaling interaction mode to reduce the optical power are solved, and then the reliability and the execution speed of an APR progress are improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to an optical power reduction (Automatic Power Reduction, APR for short) protection method and device. Background technique [0002] In an optical communication system, accidents such as optical cable cutoff, equipment failure, or optical connector pull-out will result in loss of optical power. For the sake of human eye safety, the loss of optical power in an optical transmission section of the main optical channel In this case, the system needs to provide an automatic optical power reduction (APR) process. In order to restore the system easily after the link is reconnected, it is necessary to consider implementing an automatic (or manual) restart process at the same time. [0003] When it is detected that the optical signals of all main optical channels are lost, the Optical Wavelength Division Multiplexing (WDM) / Optical Transport Network (OTN) system starts the APR process and sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/08H04B10/17H04B10/079
CPCH04B2210/08H04B10/07955
Inventor 张明超
Owner ZTE CORP
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