Method, equipment and system for diagnosing failure of passive optical network

A passive optical network and fault technology, applied in the field of passive optical networks, can solve the problems of not being able to find and locate the fault location in time, long troubleshooting time, affecting the quality of PON service, etc., and achieve the effect of shortening the troubleshooting time.

Inactive Publication Date: 2011-05-11
CHINA MOBILE GROUP JIANGSU +1
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  • Abstract
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Problems solved by technology

Therefore, it takes a long time to repair the fault, and the fault location cannot be found and located in time, which makes the fault detection efficiency low and affects the PON service quality

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  • Method, equipment and system for diagnosing failure of passive optical network
  • Method, equipment and system for diagnosing failure of passive optical network
  • Method, equipment and system for diagnosing failure of passive optical network

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Embodiment Construction

[0058] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] In the prior art, after the installation of each ONU, its physical location is fixed, and each ONU in the PON needs to perform a registration process in the PON before entering the on-board service operation, so as to determine that different ONUs are performing There will be no conflicts through the time division multiplexing mechanism during uplink data transmission. During the registration process of the ONU, the ONU and the OLT perform a ranging step, that is, measure the physical distance between the ONU and the OLT by logical means, and the OLT schedules the uplink transmission delay of the ONU according to the ranging result to avoid different ONUs. With the same physical distance, the conflict generated by the time division...

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Abstract

The invention discloses a method, equipment and a system for diagnosing a failure of a passive optical network (PON). The method comprises the steps of: pre-obtaining identification information of each ONU (Optical Network Unit) in the PON, optical fiber link physical distance and the corresponding peak information of the ONU when the PON is normal; establishing a correspondence table of the identification information and the corresponding peak information of each ONU according to the obtained identification information and the physical distance parameter information of each ONU and the optical fiber link physical distance and the corresponding peak information of the ONU; obtaining corresponding peak information of optical fiber links of all current ONUs in the PON according to the preset failure diagnosis measure; matching the corresponding peak information of the current optical fiber link with the pre-stored leak information, and if corresponding peak position and/or amplitude changes, obtaining the identification information of the ONU corresponding to the changed peak according to the correspondence table; and if not, executing the equipment failure diagnosis. By applying the invention, the failure position can be immediately found and positioned, the failure maintenance time is shortened and the failure detection efficiency is improved.

Description

technical field [0001] The present invention relates to passive optical network (PON, Passive Optical Network) technology, in particular to a method, equipment and system for diagnosing PON faults. Background technique [0002] Today, with the development of globalization, the diversification of people's work and life and the popularization of information exchange have made broadband Internet access an inseparable part of people's lives. This has greatly promoted the development of broadband access technology to a wider and faster direction. In recent years, as the PON with passive environmental protection and energy saving characteristics replaces the existing copper wire access technology, PON has become the most ideal broadband access technology to meet people's needs. [0003] After a large number of PON installations and deployments, operators need to consider the operation and maintenance of the PON, especially the timely detection, diagnosis and location of PON fault...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/08H04Q11/00H04B10/075
Inventor 金泓张金亮王卫东吴宇王昊冒劼张德智徐继东袁立权
Owner CHINA MOBILE GROUP JIANGSU
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