Method for isolating long-emitting optical network units (ONU) in gigabit passive optical network (GPON)

A long-emitting, laser technology, which is applied in multiplexing system selection devices, transmission systems, electromagnetic wave transmission systems, etc., to achieve the effect of ensuring business security

Inactive Publication Date: 2013-05-01
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of how to automatically detect and isolate long-emitting ONUs in the GPON system, thereby ensuring the service security of the GPON system

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  • Method for isolating long-emitting optical network units (ONU) in gigabit passive optical network (GPON)
  • Method for isolating long-emitting optical network units (ONU) in gigabit passive optical network (GPON)
  • Method for isolating long-emitting optical network units (ONU) in gigabit passive optical network (GPON)

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Embodiment Construction

[0028] The invention provides a method for isolating long-emitting ONUs in a GPON system. The OLT inquires the serial numbers of all ONUs in the GPON system at a certain time interval, and by sending PLAOM messages, all ONUs are turned off one by one and then delayed. Turn on its laser; after the ONU's laser is turned off, the OLT starts the command to query the serial numbers of other ONUs, based on whether the OLT can receive the serial numbers replied by other ONUs when the current ONU's laser is turned off, to obtain the judgment of whether the current ONU is a long-emitting ONU As a result, when the judgment result indicates that the ONU is a long-emitting ONU, the laser of the ONU is permanently turned off by sending a PLAOM message.

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] As a preferred embodiment of the present invention, the method for isolating long-lighting ONUs in the GPON system inclu...

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Abstract

Disclosed is a method for isolating a constant optical ONU in a GPON system. By way of sending a PLAOM message, an OLT first closes and then opens after a delay the lasers of all the ONUs in the GPON system one by one; after the lasers of an ONU are closed, the OLT queries the serial numbers of the other ONUs, and acquires the judgment result of whether the current ONU is a constant optical ONU according to whether or not the OLT can receive the serial numbers replied by the other ONUs when the laser of the current ONU is closed, wherein when the judgment result indicates that the ONU is a constant optical ONU, the laser of the ONU is closed permanently by way of sending a PLAOM message until all the ONUs are completed. The present invention realizes the isolation of the constant optical ONU in the GPON system by way of the above method and ensures service safety of the GPON system.

Description

technical field [0001] The invention relates to a method for ensuring the service safety of a GPON system, in particular to a method for isolating long-emitting ONUs in the GPON system. Background technique [0002] GPON is a technology that has developed rapidly in recent years. The full name of GPON (Gigabit passive optical network) is Gigabit / Gigabit Passive Optical Network, which is also a passive passive optical network. Compared with other PON standards, the GPON standard provides unprecedented high bandwidth, the downlink rate is as high as 2.5Gbit / s, and its asymmetric characteristics are more suitable for broadband data services. It provides QoS full-service guarantee, and has a good ability to provide service levels, support QoS guarantee and full-service access. The transmission distance can reach 20 kilometers, so it has many characteristics such as high bandwidth, high speed, high-efficiency transmission, large-scale coverage, and rich user interfaces. ideal t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/03H04B10/075H04Q11/00
CPCH04Q2011/0081H04Q11/0067
Inventor 徐永国范雨晓张勇安俊峰
Owner FENGHUO COMM SCI & TECH CO LTD
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