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A method and system for implementing an optical tag

An implementation method and a technology for realizing a system, which are applied in the field of optical communication networks, can solve the problems of unfavorable receiving end demodulating tag signals and identifying tag signal information, etc., and achieve the effect of being beneficial to extracting and reducing the requirements of tag frequencies

Inactive Publication Date: 2015-08-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a method and system for implementing an optical tag, which can solve the problem that the receiving end is not conducive to demodulating the tag signal and identifying tag signal information due to the use of more tag signal frequencies.

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  • A method and system for implementing an optical tag
  • A method and system for implementing an optical tag
  • A method and system for implementing an optical tag

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Embodiment Construction

[0033] The realization method of the optical label of the present invention mainly makes multiple wavelengths in the optical network use the frequency of the label signal in time-division and in turn to transmit the relevant information of the wavelength. Such as figure 1 shown, including:

[0034] Step 101, divide the optical network into domains according to ROADM nodes, and assign one or more tag signal frequencies to each domain.

[0035] Step 102 , in each domain, transfer the assigned tag signal frequency between ROADM nodes and / or among wavelengths within the ROADM node according to a preset time-sharing rule.

[0036] Step 103, the wavelength sends the tag signal using the transmitted tag signal frequency.

[0037] Combine below figure 2 and image 3 The scheme of the present invention is described.

[0038] Such as figure 2 As shown, the optical network is divided into domains according to ROADM nodes, and the division method can be based on the IP addresses o...

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Abstract

The disclosure provides a method for implementing an optical label, including that: an optical network is domain-partitioned according to Reconfigurable Optical Add-Drop Multiplexer (ROADM) nodes, and one or more frequencies of label signal are allocated for each domain; in each domain, an allocated frequency of label signal is circulated among ROADM nodes and / or among carriers within an ROADM node according to a preset time-division rule; a label signal is sent on a carrier or an optical channel using a circulated frequency of label signal. The disclosure further provides a system for implementing optical label. With the solution of the disclosure, label-signal transmission may be implemented on more carriers or optical channels with less frequencies of label signal, thereby not only reducing demand of the system for the number of label frequencies, but also facilitate label-signal extraction.

Description

technical field [0001] The invention relates to an optical communication network, in particular to a method and system for realizing an optical label. Background technique [0002] With the development of wavelength division multiplexing (WDM, Wavelength Division Multiplex), the current optical communication network can simultaneously transmit multiple optical signals or optical channels of different wavelengths in the same optical fiber, and based on reconfigurable optical add-drop multiplexing The ROADM (Reconfigurable Optical Add-Drop Multiplexer) technology facilitates the on-demand configuration of each wavelength in optical communication, so that the wavelength in the optical network does not always go through the same path between two sites, or a certain wavelength does not always go through the same path. Always assigned to a constant two sites. [0003] In order to carry out network topology identification and optical channel detection, a low-frequency label signal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J14/00H04Q11/00H04L45/50
CPCH04J14/0276H04Q2213/1301H04J14/021H04J14/0267H04Q2213/13367H04J14/0212H04J14/0275H04J14/0258H04J14/02H04J14/08
Inventor 尚迎春华锋陈勋余进
Owner ZTE CORP
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