Distributive wavelength reserving method

A wavelength and equipment technology, applied in the field of optical communication, can solve the problems of low network blocking rate and high network blocking rate, and achieve the effect of short average time and good network blocking rate characteristics

Inactive Publication Date: 2003-06-25
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology improves upon previous methods by making it faster than current techniques while also reducing interference between different wavelengths during signal transmission. It can be used with Optical Transport Networking systems that use Wavelength Division Multiplexed Passive Reflectors or Active Grids.

Problems solved by technology

Technological Problem addressed in this patents relating to improving the performance and reliance capacity of opaqueted networks used in telecommunications systems. Specifically, the technical problem being solved involves optimizing the allocation of bandwidth among different connections while ensuring reliable operation even during failures caused by physical limitations such as lightweight loadings and temperature fluctuations.

Method used

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Embodiment Construction

[0029] Such as figure 1 As shown, the optical node devices used in the embodiment of the present invention are optical cross-connect devices (OXC) or add-drop multiplex devices (OADM) developed by Datang Telecom Optical Communication Branch. The devices all support the link management protocol, and all include a signaling receiving module, a signaling forwarding module and a signaling processing module. The various packets sent in the embodiment of the present invention are all completed by the signaling forwarding module in the device, and the reception of various packets is completed by the signaling receiving module in the device; the processing of various packets is performed by The signaling processing module in the device is completed. The various packets sent in the embodiment of the present invention are all based on the TCP / IP protocol.

[0030] figure 2 It is the software flowchart that the optical node equipment needs to solidify for realizing the present inventi

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Abstract

A distributed wavelength preservation method relates to the setting up of distributed dynamic wavelength route in automatic exchanging light network characterizing in sending a preserve-detection packet to host node equipment direction after source node equipment receives requirement of connection, containing local used wavelength list and a w set selected from it, every middle node equipment renews the wavelength list on one hand, and preserves w set on the other, if w set can be used at each node equipment then w set matches each light node equipment, otherwise the host node equipment selects a wavail from the renewed wavelength list to send a preserved signaling packet to the source and each middle node equipment matches relates wavail to set up light channel.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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