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Rogue optical network unit mitigation in multiple-wavelength passive optical networks

An optical network unit, passive optical network technology, applied in the field of logic single, can solve problems such as PON trouble

Inactive Publication Date: 2014-06-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because multiple ONUs can share the same wavelength on the fiber, a problem with one ONU can cause problems for the rest of the PON

Method used

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  • Rogue optical network unit mitigation in multiple-wavelength passive optical networks
  • Rogue optical network unit mitigation in multiple-wavelength passive optical networks
  • Rogue optical network unit mitigation in multiple-wavelength passive optical networks

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Embodiment Construction

[0013] It should be understood at the outset that although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of currently known or available techniques. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but may be limited within the scope of the appended claims and their equivalents. Modify within the complete scope of the object.

[0014] The invention discloses a system, a method and a device for alleviating the damage of improper ONUs in a multi-wavelength PON system. A rogue ONU may be an ONU that transmits data in a manner that does not conform to the normal parameters of the PON system. Since the PON has a shared medium in the upstream direction, a rogue ONU could threaten some or all of the upstream transmissions o...

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Abstract

A method implemented in an optical line terminal (OLT) for reducing adverse effects from a rogue optical network unit (ONU) in a passive optical network (PON), comprising determining with a processor that the rogue ONU is transmitting in violation of pre-specified parameters, and sending at least one message to a plurality of ONUs to change a transmitting wavelength from a first wavelength to a second wavelength.

Description

[0001] Related Applications Cross Application [0002] This application claims prior application to U.S. Provisional Patent Application No. 61 / 514,762, filed August 3, 2011 by Luo Yuanqiu et al. priority, the content of this earlier application is incorporated by reference into this text as if reproduced in its entirety. Background technique [0003] Passive Optical Network (PON) is a point-to-multipoint, fiber-to-the-premises network architecture in which unpowered optical splitters are used to enable a single fiber to serve multiple premises. A PON can consist of an Optical Line Terminal (OLT) located at the service provider's central office and multiple Optical Network Units (ONUs) close to the end users. Compared to point-to-point architectures, PON reduces the amount of fiber and central office equipment required. However, because multiple ONUs can share the same wavelength on the fiber, a problem with one ONU can cause problems for the rest of the PON. Contents of th...

Claims

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Application Information

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IPC IPC(8): H04J14/02
CPCH04J14/0246H04J14/0267H04B10/272H04J14/0257H04J14/0252H04J14/0247H04J14/025H04B10/038H04B10/85
Inventor 罗远秋隋猛弗兰克·艾芬伯格
Owner HUAWEI TECH CO LTD