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Disaster-tolerance recovery change-back method and system for serving call session control function (S-CSCF)

A technology of I-CSCF and P-CSCF, which is applied in the field of service call session control function entity disaster recovery and recovery, can solve the problems of low efficiency of S-CSCF, and achieve the effects of short operation time and simple implementation steps.

Active Publication Date: 2014-12-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method and system for service call session control function entity disaster recovery and reversion, which can solve the fault or update the function of the S-CSCF after the operation, and the user reverts to the S-CSCF inefficiency when

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  • Disaster-tolerance recovery change-back method and system for serving call session control function (S-CSCF)
  • Disaster-tolerance recovery change-back method and system for serving call session control function (S-CSCF)

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Embodiment Construction

[0035] The basic idea of ​​the present invention is that after the fault is determined or the S-CSCF of the update operation resumes its function, it is not necessary for the user to log out from the redundant S-CSCF, and it is not necessary to use the S-CSCF to notify the user of the logout, but to activate the I-CSCF The fallback function implements the logout operation of the connected users through the I-CSCF, so that the users registered to the redundant S-CSCF can re-register to the S-CSCF that recovers from the failure, thereby realizing load balancing among S-CSCFs. In the technical solution of the present invention, by adding a new revert function to the I-CSCF, after the failure is confirmed or the function of the updated S-CSCF is restored, the revert function of the I-CSCF can be activated, so that the user can revert to the fault recovery Operation of the S-CSCF.

[0036] In the present invention, firstly, the fallback function of all I-CSCFs in the domain is enab...

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Abstract

Disclosed is a method for serving call session control function disaster recovery rewinding, comprising: when receiving a registration message of a user, an interrogating call session control function (I-CSCF) with a rewinding function initiated interrogating initial configuration information of the user through an HSS; forwarding the registration message to a serving call session control function (S-CSCF) initially configured by the user; the S-CSCF performing authentication and authentication on the user through the HSS, performing registration authentication on the I-CSCF after passing the authentication and authentication, so that the user accesses the S-CSCF. Also disclosed is a system for serving call session control function disaster recovery rewinding that implements the above method. The rewinding method of the present invention does not need deregistration of the user, does not need the S-CSCF to notify the user of performing rewinding, and can implement S-CSCF rewinding automatically, thereby having advantages of simple implementation steps and short operation time.

Description

technical field [0001] The present invention relates to fallback redundancy technology in IP Multimedia Subsystem (IMS, IP Multimedia Subsystem), in particular to a method and system for disaster recovery and fallback of Serving call session control function entity (S-CSCF, Serving call sessioncontrol Function) . Background technique [0002] IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) is the standard of the next generation network defined by the 3rd Generation Partnership Organization (3GPP, 3rd Generation Partnership Project), and its notable feature is the adoption of Session Initiation Protocol (SIP, Session Initiation Protocol ) system, which has nothing to do with communication and access, and can have various capabilities such as separation of control functions and carrying capacity of various media services, separation of calls and sessions, separation of applications and services, separation of services and networks, and integration of mobile network and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/24H04L12/70
CPCH04L65/1016H04L69/40H04L65/80
Inventor 曹刚倪明
Owner ZTE CORP