Optical CDMA access metwork with shared light source

An optical code division multiple access and access network technology, applied in the field of communication networks, can solve problems such as a sharp increase in the amount of social information and cannot meet the requirements for multi-service services, and achieve the effect of low-cost, high-bandwidth access

Inactive Publication Date: 2006-12-06
杨淑雯 +1
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  • Description
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Problems solved by technology

[0027] In order to overcome the shortcomings that the existing access network technology cannot meet the rapid increase in the amount of information in the real society and the requirements for multi-service services, the present invention proposes a common light source optical code division

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  • Optical CDMA access metwork with shared light source
  • Optical CDMA access metwork with shared light source
  • Optical CDMA access metwork with shared light source

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specific Embodiment approach

[0042] [Description of Embodiments] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] see Figure 5 .

[0044] An optical code division multiple access network with a common light source, including an optical line terminal 2; the feature is that the optical line terminal 2 is an optical line terminal with a common light source.

[0045] The common light source optical line terminal 2 includes a multi-wavelength light source 23 and an optical multiplexer 22 connected thereto.

[0046] The common source optical line terminal 2 includes an optical decoder 24;

[0047] The input terminal of the optical multiplexer 22 is connected with a downlink 21 .

[0048] The common light source optical code division multiple access network also includes an optical splitter 31 connected to the optical multiplexer 22; the output end of the optical splitter is at least connected to the input end of a group of optical ...

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Abstract

The optical CDMA access network with common light source includes optical line terminal (OLT). Characters of OLT are that OLT uses common light source. The invention solves technique of common light source in broadband and technique of OLT in high performance so as to meet requirements on explosive social information quantity, and multiple services of operation. Beneficial effects of the invention are: using WDM technique to realize multimedia service for whole operation; optical network terminal (ONU) for each user does not contains laser light source since common light source is adopted so as to realize low cost; OLT realizes functions of resources configuration and network management of access network effectively.

Description

【Technical field】 [0001] The invention relates to a communication network, in particular to an optical code division multiple access network structure for communication. 【Background technique】 [0002] Optical Access Network (OAN) is a standard formulated by ITU-T. ITU-T recommends G.982 to define OAN as sharing the same network side interface and supported by the optical access transmission system. access link. An Optical Access Network OAN may contain a large number of Optical Distribution Networks (ODNs) connected to the same Optical Line Terminal (OLT). The characteristics of the optical access network are: a point-to-multipoint optical distribution network (Optical Distribution Network, ODN) based on passive optical branching devices; it has the ability to transmit interactive services between user-network and network-network; based on 64kbit / s capacity, including ISDN primary rate services; based on time division multiple access protocol. [0003] Regarding the str...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04J14/02H04B10/25
Inventor 杨淑雯马君显蒲涛张志朋吉建华徐铭吴迪严新民周建华王可
Owner 杨淑雯
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