Session Control Entity Notification for 5G Service Integration
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Solution Overview
Problem
Current solutions for integrating service functions in 5G networks, such as RADIUS integration, become costly and complex due to the need for extensive AAA server integration with control and user plane instances, and inefficiently manage subscriber sessions, leading to suboptimal resource usage.
Innovation Solution
A method and system that allow service application entities to request and receive notifications about session-related parameters through a session control entity, enabling direct identification and communication with the appropriate session control entity for subscriber-aware service application, decoupling service function deployment from RADIUS deployment and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RADIUS integration is used for service function deployment, then service functions can be integrated with AAA servers, but the system complexity and deployment cost increase significantly
Solution Approach 1:
The patent extracts the service function deployment from the RADIUS/AAA server integration framework and establishes direct communication between service application entities and the session management function. This separation eliminates the mandatory RADIUS integration path while maintaining service function capabilities, thereby reducing deployment complexity and cost.
2Loss of information
If RADIUS integration is implemented for subscriber session management, then service functions can access subscriber information, but resource consumption increases due to managing all subscriber sessions
Solution Approach 1:
The patent enables service application entities to receive notifications only for specific subscriber sessions that are relevant to their service functionality. Instead of monitoring all subscriber sessions globally, the system provides localized information delivery tailored to each service's needs, thereby reducing processing resource consumption while maintaining information availability.
3Reliability
If service functions monitor all subscriber sessions, then complete session information is available, but resource usage becomes suboptimal
Solution Approach 1:
The patent implements a notification mechanism where service application entities receive session information selectively based on their specific service requirements and subscriptions. Rather than providing complete session information for all subscribers unconditionally, the system delivers partial but sufficient information on-demand, optimizing resource usage efficiency while maintaining reliability for subscribed services.
Data Source
AI summary
A method for operating a session control entity configured to control a data packet session for a mobile subscriber in a network, wherein at least one service is applied to the data packet session by a service application entity, the method includes at the session control entity receiving a first request from a requestor requesting application of the at least one service, in which it is requested that the requestor be informed of a current status of at least one session related parameter of the data packet session, and transmitting a notification to the requestor, the notification having the current status of the at least one session related parameter.