Method for realizing interworking of distributed soft switching system with IMS

A distributed softswitch and message distribution technology, applied in the SIP field, can solve the problems of incomplete transparency of the SIP network, the consideration and design of the IMS system, and the impossibility of realization, so as to avoid single point failures and performance bottlenecks, improve intercommunication efficiency, achieve simple effects

Inactive Publication Date: 2013-03-20
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0011] In this scheme, the INVIT message is directly forwarded from the proxy node of the SIP network to the target node of P2PSIP through DNS query, which cannot be realized in the IMS system, and this scheme does not consider the specific scenario of the IMS system and design
At the same time, it also has the same problem as the previous solution: the intercommunication is not completely transparent to the SIP network, and the SIP network needs to be modified, which is unacceptable for the deployed network

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  • Method for realizing interworking of distributed soft switching system with IMS
  • Method for realizing interworking of distributed soft switching system with IMS
  • Method for realizing interworking of distributed soft switching system with IMS

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[0063] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0064] The inventive method is as follows:

[0065] For the IMS system, it itself has the functions and characteristics of intercommunication between multiple domains. The method of the present invention utilizes this characteristic, and the distributed softswitch system is set as a "pseudo domain", so that the intercommunication between domains of the IMS network Intercommunicate with the IMS system in the same way.

[0066] The distributed softswitch system is set as an independent "pseudo-domain", its architecture is completely transparent to the IMS network, and the intercommunication of heterogeneous networks does not require any form of modification to the IMS system.

[0067] The intercommunication node has both P2P routing and DNS domain name resolution functions, and intercommunication conversion is performed at the intercommunication node, which reduces the...

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Abstract

The invention provides a method for realizing interworking of a distributed soft switching system with an IMS (Internet Protocol Multimedia Subsystem), and belongs to the field of SIPs (Session Initiation Protocols), P2PSIPs (Peer-to-Peer Session Initiation Protocols), IMSs and VoIPs (Voice over Internet Protocols). A core network of the distributed soft switching system consists of P2P (Peer-to-Peer) nodes, and the IMS comprises a plurality of domains. The method comprises the steps that the distributed soft switching system is set as a false domain; the IMS equivalently treats the false domain according to other domains in the IMS; at least one P2P node in the distributed soft switching system is selected as an interworking node; and the distributed soft switching system interworks with the IMS by the interworking node. With the adoption of the method, interworking between domains in a heterogeneous network can be realized on the premise of making no modification to the IMS.

Description

technical field [0001] The invention belongs to the fields of SIP, P2PSIP, IMS and VoIP, and specifically relates to a method for realizing intercommunication between a distributed softswitch system and an IMS system. Background technique [0002] The distributed softswitch network is a distributed P2P core network based on SIP, which is considered to be the next-generation carrier core network architecture following the IMS network. Therefore, in the transition period from the IMS network to the distributed softswitch network, the intercommunication between the distributed softswitch network and the IMS network is very important. [0003] IP Multimedia System IP multimedia Subsystem, referred to as IMS, is a multimedia service network architecture. An IMS system includes one or more Call Session Control Functions (Call Session Control Function, CSCF), Media Gateway Control Function (Media Gateway Control Function, MGCF) , IMS media gateway, multimedia resource function pro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L29/12
Inventor 双锴徐鹏解晶王玉龙苏森
Owner BEIJING UNIV OF POSTS & TELECOMM
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