IMS (IP multimedia subsystem)-based service triggering method and IMS-based service triggering system

Abstract

The invention provides an IMS-based service triggering method, which comprises the following steps: firstly, downloading user subscription data from an HSS (home subscriber server) by an S-CSCF (serving-call-session control function) when UE (user equipment) logins and saving locally, wherein iFC (initial filter criteria) information of subscription contains application server information which needs to be triggered and SPT (service point trigger) conditions for triggering application servers, and SPT contains user service information; secondly, subscribing for the specific service of a user from specific application servers by the S-CSCF after the UE logins successfully, and saving locally the user service information returned by the specific application servers; finally, deciding whether the logics of the application servers are triggered or not according to the matched user service information and SPT conditions after a call request is received by the S-CSCF. The invention also discloses an IMS-based service triggering system. According to the IMS-based service triggering method and the IMS-based service triggering system provided by the invention, the application servers are triggered in a matching manner according to services subscribed by the user, and therefore service triggered logics are enriched, and different demands of operators are met; moreover, the IMS-based service triggering method and the IMS-based service triggering system have no dependency on terminals.

Description

technical field [0001] The present invention relates to the communication field, and more particularly relates to a method and system for IMS (IP Multimedia Subsystem) service triggering. Background technique [0002] IP Multimedia subsystem (IP Multimedia subsystem, IMS) is the standard of the next generation network defined by 3GPP (3rd Generation Partnership Project, the third generation partnership organization), and its notable feature is the adoption of SIP (Session Initiation Protocol, Session Initiation Protocol ) protocol, with multiple capabilities such as separation of business control and bearer capacity, separation of call and session, separation of application and service, separation of business and network, and integration of mobile network and Internet services. [0003] figure 1 It is a diagram of the IMS system architecture, mainly composed of UE (User Equipment, user equipment) (101), and the IMS core network includes proxy CSCF (Proxy Call Session Contro...

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Problems solved by technology

[0013] The technical problem to be solved by the present invention is to overcome that in the prior art, the SPT structure cannot match and trigger the application server according to the service signed by the user, and at the same time, the S-CSCF does not know whether the user has signed some service, so it cannot meet the requirements of some networks and Insufficient requirements of operators provide an IMS system-based service triggering method and system, which realize matching and triggering application servers according to the services subscribed by users

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