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Dual Homing Synchronous Data Transmission Method

A technology for synchronizing data and transmission methods, applied in the field of communication

Inactive Publication Date: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the device user capacity is huge and dynamic information changes frequently, it will occupy more bandwidth and cause a greater load on the link.

Method used

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  • Dual Homing Synchronous Data Transmission Method
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  • Dual Homing Synchronous Data Transmission Method

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Experimental program
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Embodiment Construction

[0051] The present invention provides a kind of data synchronization method using abstract syntax definition (ASN.1, Abstract Syntax NotationOne) encoding and decoding, and its realization steps are as follows:

[0052] 1. First, for the synchronous data that needs to be exchanged between the active and standby softswitch devices, define the semantics of the synchronous data according to the ASN.1 specification.

[0053] Synchronous data includes static data and dynamic data, among which static data is mostly contract data, which changes less; dynamic data is location information, etc., which changes more frequently with user activities.

[0054] In the definition, several guidelines for synchronous data ASN.1 definition are stipulated:

[0055] (1) Define the synchronization data subdivided by category, and each type of data is optional in the synchronization message, not mandatory. For example, static data can be divided into basic services, supplementary services, etc., wh...

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Abstract

The invention discloses a dual-homing synchronous data transmission method. The steps include: defining the semantics of synchronous data to be exchanged between active and standby softswitch equipment; constructing a codec processing module and assembling it on the active and standby softswitch equipment; The encoding and decoding processing module contains the encoding function and decoding function defined according to the synchronization data; when the main and standby softswitches need to be synchronized, the main softswitch calls the encoding function to generate a code stream containing the synchronization data, and passes the underlying protocol stack Send the code stream to the standby softswitch device; the standby softswitch device receives the code stream, calls the decoding function to analyze the synchronization data in the code stream, saves the synchronization data and completes its own synchronization, and completes it to the active softswitch device through the underlying protocol stack Respond synchronously. The method of the invention overcomes the compatibility and intercommunication problem of the dual-homing active and standby parties, and at the same time adapts to the situation that high-frequency data synchronization has high requirements on link resources (bandwidth).

Description

technical field [0001] The invention relates to a communication technology, in particular to a dual-homing synchronous data transmission method adopted in the synchronization of a dual-homing active and standby domain visit location register (VLR). Background technique [0002] At present, softswitch technology is widely used. In the softswitch network based on softswitch technology, the original MSC is decomposed into MSC Server (Mobile Switching Center Server) and MGW (MediaGate Way: Media Gateway). Among them, the MSC Server undertakes part of the function of call control, that is, the softswitch device, which has a wide coverage area and a large user capacity. During network operation, if the softswitch fails to work properly, a wide range of services will be interrupted. In order to ensure the reliability and stability of network operation, a large number of dual-homing methods are used in the existing network to realize remote disaster recovery of softswitches. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W56/00H04W80/02
Inventor 袁立罡
Owner ZTE CORP