Multimedia Information Delivery During IMS Session Termination
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Solution Overview
Problem
In the IMS service architecture, session termination processes are dull and inconvenient, particularly when users need to access information like prepaid phone balances, as they require establishing a separate session, which is not user-friendly.
Innovation Solution
A method where a server equipment requests the media resource function to reserve and play multimedia information to the disconnected party during session termination, using SIP signaling to establish a multimedia session connection and release resources appropriately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate session is established to access information like prepaid balance, then information access is enabled, but user convenience deteriorates and operation complexity increases
Solution Approach 1:
The patent merges the information access function with the session termination process. During session termination, the network automatically establishes a temporary media session to deliver information (e.g., prepaid balance) to the user without requiring the user to initiate a separate session. This combines two previously separate operations (session management and information delivery) into one unified process, eliminating the need for additional user actions.
Solution Approach 2:
The patent prepares and buffers the information to be delivered before the session termination occurs. The server equipment pre-processes the information (such as prepaid balance data) and has it ready for delivery during the termination phase. This preliminary preparation ensures that when the termination session is automatically initiated, the information can be immediately delivered without delay, maintaining both reliability and user convenience.
2Reliability
If a separate session is established for information access, then information delivery is ensured, but operation time increases
Solution Approach 1:
The patent combines the information delivery operation with the session termination operation into a single integrated process. Instead of executing them sequentially (first terminate session, then start separate information session), the system merges them so that the termination process itself becomes the vehicle for information delivery. This eliminates the time overhead of establishing and tearing down a separate session cycle.
Solution Approach 2:
The patent maintains continuous useful action by ensuring that the information delivery occurs seamlessly during the transition phase of session termination. The media session is established and information is delivered without interrupting the overall process flow, eliminating idle time between session termination and information delivery that would occur in a sequential approach.
3Ease of operation
If session termination process is simplified, then user experience improves, but information delivery capability is lost
Solution Approach 1:
The patent performs preliminary actions by pre-processing and buffering the information to be delivered before the session termination occurs. The server equipment prepares the information (such as prepaid balance data) in advance and has it ready in the network. When the termination session is automatically initiated, the pre-prepared information can be immediately delivered without requiring complex user interactions or additional processing steps, thus maintaining both simplicity and reliability.
Solution Approach 2:
The patent introduces the network infrastructure (specifically the media server and session controller) as an intermediary that automatically manages the information delivery process. This intermediary handles the complex tasks of establishing the temporary media session, delivering the information, and cleaning up resources without requiring the user to perform any complex operations. The user simply receives the information passively during session termination, while the intermediary ensures reliable delivery.
Data Source
AI summary
A method for implementing a service for playing multimedia information during a session termination process, applied in an IP multimedia subsystem, comprises the following steps: (1) when a party, referred to as a disconnecting party, in a session disconnects the session, a server equipment requesting a media resource function to reserve multimedia information resource for a party with which the session is disconnected by the disconnecting party, referred to as a disconnected party, and to play the multimedia information to the disconnected party; (2) when the disconnected party disconnects the session or the multimedia information playing is finished, the server equipment performing a corresponding disconnection flow to disconnect the session. With the present invention, it can be implemented that during a session termination process, if one party disconnects the session, the other party can receive multimedia information sent to it by the network, which updates the experience of the user.