Method for mutual protection of adjacent ONU

An interface and user technology, applied in the communication field, can solve problems such as unresolved issues, and achieve the effects of reducing construction costs and shortening protection switching time

Inactive Publication Date: 2009-05-13
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the prior art, there is no solution to the above problems

Method used

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  • Method for mutual protection of adjacent ONU
  • Method for mutual protection of adjacent ONU
  • Method for mutual protection of adjacent ONU

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Embodiment Construction

[0041] The present invention provides a method for mutual protection of adjacent ONUs in a passive optical network. The core of the present invention is: the ONU performs real-time monitoring on the state of the branch optical fiber link. When a fault occurs, the affected ONU1 automatically Switch and connect to its adjacent ONU2 to continue communication. When the fault is repaired, normal communication is restored.

[0042] Describe the present invention in detail below in conjunction with accompanying drawing, the structure of the concrete realization mode of ONU described in the present invention is as follows figure 2 As shown, it includes a fault processing module, an optical interface module, a plurality of wired interface modules, a wireless interface module, an adjacent ONU interface module, a storage module and a central control module. The central control module is composed of protocol processing module and transmission control module.

[0043] The processing flo...

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Abstract

The invention discloses a method for protecting adjacent optical network unit ONU of a passive optical network. The method mainly includes: an optical module and a fault processing module of ONU1 monitor link fault in real time; when fault occurs, adjacent ONU interface is opened and establishes wireless connection between an adjacent ONU2; ONU1 is used as a wireless terminal for connecting with adjacent ONU2, next connected user of ONU1 communicates with OLT through ONU2; when fault is repaired, adjacent ONU interface of ONU1 is closed and normal communication is recovered. The invention discloses an improvement method for ONU, makes ONU having wireless access and automatic protection functions, can detect and process branch / stem fiber fault at the same time user is wireless accessed. The invention provides system protection using wireless access mode between adjacent ONU, does not use fiber backup, increases viability of passive optical network, and reduces building cost simultaneously.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for mutual protection of adjacent ONUs (Optical Network Units). Background technique [0002] With the rapid development of the Internet and the rapid growth of new data services represented by IP services, network services are developing in the direction of multimedia video image services and real-time teleconferencing services, which poses a challenge to network bandwidth and network equipment capacity. The requirements are getting higher and higher, but the traditional network cannot break through the so-called "bandwidth bottleneck" of the electronic age, and obviously cannot meet these requirements. The optical network with optical fiber as the transmission medium has a huge transmission capacity and excellent transmission quality, which breaks through the electronic bottleneck and improves the utilization rate of bandwidth. At present, although the optical n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/08H04B10/032H04B10/07
Inventor 李慧金莎莎纪越峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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