Synchronous digital cross connecting self-routing method and system

A cross-connection and synchronous digital technology, which is applied in the direction of digital transmission system, selection device of multiplexing system, transmission system, etc., can solve the problem of occupying processor system resources, and achieve less system resource occupation, easy implementation and reliability sex high effect

Inactive Publication Date: 2009-03-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to occupy processor system resources. In the application environment where the cross-connect capacity is large and the cross-connect matrix of the chip needs to be updated quickly, the method of self-routing configuration using the processor will not meet the requirements.

Method used

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  • Synchronous digital cross connecting self-routing method and system
  • Synchronous digital cross connecting self-routing method and system
  • Synchronous digital cross connecting self-routing method and system

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Embodiment Construction

[0049] The present invention will be described in detail below by taking VC-4 space-division cross-connect as an example and in conjunction with the accompanying drawings.

[0050] figure 1 It is a block diagram of the self-routing system of synchronous digital cross-connect in the present invention, including: a service board 101 and a cross-connect chip 102, wherein the service board 101 includes a transmission terminal function module 1011 and a self-routing sending module 1012, and the cross-connect chip 102 includes a self-routing receiving module 1021 and a cross-connect matrix module 1022 , the self-routing receiving module 1021 includes a self-routing extracting module 10211 and a cross-connect control memory 10212 .

[0051] After the service board 101 completes the processing of the transmission terminal function module 1011, when the system control needs to configure the self-routing mode, the self-routing sending module 1012 sets the starting address of the self-rout...

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PUM

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Abstract

The invention discloses a self-routing method for synchronous digital cross connect equipment, which comprises the following steps: a self-routing transmitting module inserts controller memory (CM) data into a STM-N data stream in accordance with a frame header marker and a self-routing start address signal; and a self-routing receiving module extracts the CM data from the STM-N data stream in accordance with the frame header marker and the self-routing start address signal, and writes the CM data into a cross connect control memory. The invention also discloses a self-routing system for synchronous digital cross connect equipment, which comprises a self-routing transmitting module and a self-routing receiving module; wherein the self-routing transmitting module comprises a self-routing transmitting control unit, a first cyclic redundancy check (CRC) unit, and an insert data generating unit; and the self-routing receiving module comprises a self-routing extraction control unit, a second CRC unit and a cross connect control memory. The invention provides a self-routing solution for users, has the advantages of easy implementation, low occupied system resources and high reliability, and is suitable for high-capacity synchronous digital cross connect equipment.

Description

technical field [0001] The invention mainly relates to the field of digital communication, in particular to a self-routing method and system for a synchronous digital cross-connect. Background technique [0002] The cross-connect device is an important part of the optical synchronous digital transmission (SDH, Synchronous Digital Hierarchy) system, and the synchronous digital cross-connect realizes the transparent connection between multiple virtual containers (VC, Virtual Container) constituted according to the standard G.709 and reconnection, the transparent connection and reconnection are controllable between any port. In addition to supporting the SDH rate defined by the standard G.707 and the Plesiochronous Digital Hierarchy (PDH, Plesiochronous Digital Hierarchy) rate defined by the standard G.702, these ports also support the control and management functions defined by the SDH management standard G.784. [0003] It is an important aspect of cross-connect device manag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/00H04Q11/00
CPCH04Q2213/13216H04Q2213/1329H04Q2213/13109H04Q11/04H04Q2213/1338H04Q2213/13352H04Q2213/13367H04Q2213/13174H04Q2213/13141H04Q2213/13103H04Q2213/13215
Inventor 王静张志伟邓春松
Owner ZTE CORP
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