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Method, equipment and system for passive optical network extension

A passive optical network and optical network unit technology, which is applied in the field of passive optical network extension, can solve the problems of limited number of ONUs, small optical splitting ratio, and difficult expansion of system equipment, and achieves the effect of easy expansion.

Inactive Publication Date: 2009-11-04
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the number of ONUs supported by the GPON remote equipment is limited, the splitting ratio is very small, and it is not easy to expand the system equipment

Method used

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  • Method, equipment and system for passive optical network extension
  • Method, equipment and system for passive optical network extension
  • Method, equipment and system for passive optical network extension

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Embodiment Construction

[0025] Embodiments of the present invention provide a method, device, and system for remote passive optical network, and provide a new PON remote device and optical splitter for PON, so that the remote distance of PON is longer, and the splitting ratio of PON reaches higher requirement.

[0026] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] figure 2 It shows a system structure diagram of a remote passive optical network in an embodiment of the present invention, including an optical line terminal (OLT) 20, a passive optical network remote (PON EXTENDER) device 21, and an optical network unit (ONU) 22, Wherein: the OLT 20 is used to interact with the remote ONU 22 for PON signals, and the PON signals need to be extended and split by the PON EXTENDER device 21 before entering each ONU 22 . The PON EXTENDER device 21 is provided with an optical amplifier 211, an optical control switch 21...

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Abstract

The embodiment of the invention discloses passive optical network (PON) EXTENDER which comprises an optical amplifier, an optical control switch and a regeneration device, wherein the optical amplifier is used for compensating the optical power of PON signals of a downlink channel; the optical control switch is connected to an optical network unit (ONU), extracts the overhead information of the PON signals in the downlink channel and selects one path of ONU ascending signals as the output PON signals of an uplink channel according to the extracted overhead information; and the regeneration device is used for regenerating optical signals of the PON signals controlled and output by the optical control switch of the uplink channel. The embodiment of the invention also provides a system and a method for passive optical network extension, and by applying the embodiment of the invention, the PON EXTENDER provides new PON extension equipment for the PON so as to ensure that the splitting ratio of the PON meets higher requirements.

Description

technical field [0001] The present invention relates to a communication application field, in particular to a passive optical network remote method, equipment and system. Background technique [0002] Passive Optical Network (PON), as a broadband optical access technology, is characterized by a point-to-multipoint physical topology, consisting of Optical Line Terminal (OLT), Passive Optical Distribution Network ( Optical Distribution Network, ODN) and multiple Optical Network Units (OpticalNetwork Unit, ONU), where multiple ONUs share fiber resources and OLT ports; ODN passively connects an OLT and one or more ONUs, ODN The optical branch point does not require active node equipment, only a passive optical splitter is required. Therefore, PON has the advantages of bandwidth resource sharing, saving equipment room investment, high equipment security, fast network construction speed, and comprehensive network construction costs. low merit. [0003] At present, operators have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/17H04B10/27H04B10/272H04B10/29
CPCH04Q2011/009H04Q2011/0079H04B10/272H04Q11/0067H04B10/27H04B10/29
Inventor 邹世敏
Owner HUAWEI TECH CO LTD
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