IM-SSF Multi-Protocol Triggering for IMS Service Compatibility
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Solution Overview
Problem
Current Intelligent Network (IN) systems, particularly in IMS domains, face limitations in providing diverse intelligent services due to reliance on the Customized Application for Mobile network Enhanced Logic (CAMEL) Application Part (CAP) protocol, which restricts service flexibility and compatibility with various intelligent platforms.
Innovation Solution
The introduction of an IP Multimedia Service Switching Function (IM-SSF) that supports intelligent control protocols other than CAP, enabling seamless interaction with different intelligent platforms through intelligent control protocols like INAP and ANSI-41 MAP, allowing for richer service experiences and improved network operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the IM-SSF supports multiple intelligent control protocols (INAP, ANSI-41 MAP, CAP), then service compatibility and versatility improve, but device complexity increases
Solution Approach 1:
The IM-SSF is designed to support multiple intelligent control protocols (INAP, ANSI-41 MAP, and CAP) simultaneously, enabling a single device to interact with different intelligent platforms (fixed IN, ANSI-41 WIN, and mobile CAMEL platforms). This multi-functionality allows the IM-SSF to provide convergent services across diverse network domains without requiring separate switching functions for each protocol type.
2Adaptability or versatility
If the IM-SSF triggers intelligent services to multiple intelligent platforms, then service diversity improves, but system complexity increases
Solution Approach 1:
The IM-SSF acts as an intermediary entity positioned between the SIP domain and multiple intelligent platforms. It receives session establishment requests, determines the appropriate intelligent platform based on subscription information, and triggers services to the correct platform. This mediator role simplifies the overall system architecture by centralizing the intelligence required for multi-platform service triggering in a single component.
3Ease of operation
If the IM-SSF uses per-subscription-based triggering mechanism, then service customization improves, but processing complexity increases
Solution Approach 1:
The system performs preliminary action by pre-configuring subscription information for each user in the home IMS, which includes service keys, SCF addresses, and protocol type indicators. When a session establishment request is received, the IM-SSF simply retrieves and evaluates this pre-configured information to determine the appropriate intelligent platform, avoiding complex real-time decision-making and simplifying the triggering process.
Data Source
AI summary
A method and system for providing a subscriber with an intelligent service provides the subscriber of an IP Multimedia Subsystem (IMS) domain with special intelligent services of multiple intelligent platforms or convergent services. In the present invention an IP Multimedia Service Switching Function (IM-SSF) that supports an intelligent control protocol other than a Customized Application for Mobile network Enhanced Logic (CAMEL) Application Part (CAP) protocol is added into the IMS. The IM-SSF triggers the intelligent services through the protocol other than CAP to a Service Control Function (SCF) of corresponding intelligent platform according to obtained subscription information upon receipt of a session establish request related to a served subscriber; the subscription information can be pre-configured in the IM-SSF, or downloaded by the IM-SSF from a Home Subscriber Server (HSS) of the subscriber.