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a node device

A node and wavelength selective switch technology, which is applied in the field of communication, can solve the problems of increasing equipment costs and rising costs

Active Publication Date: 2016-05-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this requires a large increase in the number of module slots in the existing equipment in order to access multiple 1×M wavelength selective switches, which increases the cost of the equipment, and with the expansion of business volume, the cost will rise sharply

Method used

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] The present invention provides a node device, such as figure 1 As shown, the node device includes a first N×N wavelength selective switch 101, a second N×N wavelength selective switch 102, a power divider 103, and a power combiner 104. The node device specifically includes:

[0048] The first N×N wavelength selective switch 101 and the second N×N wavelength selective switch 102 form a parallel structure, each of the power dividers 103 has an input terminal a...

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Abstract

The present invention provides a node device, which relates to the communication field. Two N×N wavelength selective switches are used to form a parallel structure, and the two ends of each power divider are respectively connected to the input ends of the N×N wavelength selective switches, so that The two ends of each power combiner are respectively connected to the output ends of N×N wavelength selective switches, so that the routing switching selection work originally performed before multiple 1×M wavelength selective switches is transferred to the internal implementation of N×N wavelength selective switches Compared with the original structure using discrete devices, the purpose of simplification is achieved, and when the business volume expands, there is no need to increase the number of line-side module slots, which ultimately reduces the cost of use. The invention is used for signal transmission within a node.

Description

technical field [0001] The present invention relates to the communication field, in particular to a node device. Background technique [0002] At present, Reconfiguration Optical Add / drop Multiplexer (Reconfiguration Optical Add / drop Multiplexer, ROADM) has become the main implementation technology of optical network nodes. ROADM can provide remote control and reconfiguration capabilities of nodes, and realize intelligent wavelength-level service scheduling of nodes. [0003] In current ROADM nodes, adopting discrete devices is a common implementation form. Multiple 1×M wavelength selective switches are interconnected to build nodes to realize the routing switching selection of different signals. When the network traffic increases, it is necessary to increase the number of 1×M wavelength selective switches to increase the business switching capability within the node . However, this requires a large increase in the number of module slots in the existing equipment in order ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/27
CPCH04J14/0212H04Q11/0005H04Q2011/0015H04B10/032H04J14/0297H04Q11/0066H04Q2011/0016H04Q2011/0081
Inventor 赵晗宗良佳刘宁
Owner HUAWEI TECH CO LTD
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