Service triggering method based on application server packet for IMS network

Abstract

The invention relates to a service triggering method which is used for IMS network and is based on the applied server packet. The operation steps include that firstly a new SIP joint is defined according to the international communication standard. Trigger-Rule is used to realize and support various related functions of the follow-up filtration criterion sFC. The second step is to packet the applied servers according to set rules. When the packet of the applied servers is finished, S-CSCF controls the applied servers through the joint field of routing information. And every applied server group is on the occasion of being triggered to be called or not being triggered to be called when performing business. The third step is that S-CSCF performs a service triggering method which is based on the applied server packet through making use of the SIP joint and Trigger-Rule and basing on sFC. The method is realized basing on the follow-up filtration criterion sFC. The signaling traffic of S-CSCF and AS is effectively lowered. The throughput of the whole system is increased. At the same time, the conversation establishment delay is obviously reduced and the service quality of the IMS network is improved.

Description

technical field [0001] The invention relates to a service triggering method based on application server grouping for IMS network, which belongs to the technical field of communication. Background technique [0002] The IP Multimedia Subsystem IMS (IP Multimedia Subsystem) is a new core network domain of an all-IP architecture proposed by the 3GPP (3rd Generation Partnership Project). The difference between the IMS service provision method and the service provision method of the traditional public switched telephone network PSTN and the public land mobile network PLMN circuit domain is that in the IMS network, the control layer and the service layer are completely separated, and the control layer does not provide services. Only the necessary triggering, routing, billing and other functions of the business layer are provided, and the business is completely provided by the business layer. In the IMS network, the home network provides service execution, that is, when the user r...

AI Technical Summary

Problems solved by technology

[0019] Studying the ATA-based call establishment process in the above-mentioned IMS, it can be found that the existing technology has the following defects: the existing service trigger method based on the initial filtering criterion iFC greatly increases the end-to-end session establishment delay and reduces the system throughput amount, reducing the service quality of the IMS network

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