Policy Control Multiplexing for Data Sessions
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Solution Overview
Problem
Current communication systems lack a mechanism to multiplex multiple policy-controlled data sessions that use different application functions, preventing simultaneous sessions from being carried on the same data carrier.
Innovation Solution
A communication system and method that enable policy control for at least two data sessions on a data carrier by routing signalling requests to a policy controller entity, allowing sessions to be initiated and set up with shared policy control, even if they use different application functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple policy-controlled data sessions use different application functions, then service versatility is improved, but the system cannot multiplex them on the same data carrier, leading to loss of information about which policy controller to use
Solution Approach 1:
The invention introduces an intermediary mechanism (the specified format for policy control signalling) that carries policy controller identification information through the communication path. This intermediary structure enables the system to track and route multiple sessions from different application functions to their respective policy controllers without losing identification information, thereby resolving the contradiction between service versatility and information retention
2Productivity
If multiple data sessions are carried on the same data carrier, then network efficiency is improved, but the mechanism to control policy for sessions using different application functions is lacking
Solution Approach 1:
The invention creates a universal policy control mechanism that can handle multiple data sessions from different application functions through a standardized signalling format. This multi-functional approach allows the same data carrier to transport both user data and policy control information, enabling efficient multiplexing while maintaining manageable complexity through standardization
3Reliability
If policy control signalling is routed for each session, then reliable policy control is achieved, but signalling overhead increases
Solution Approach 1:
The invention merges policy control signalling with data session management by specifying that policy control information is carried within the existing data session signalling framework. This combining approach ensures reliable policy control for each session while minimizing additional signalling overhead, as the policy control information is integrated into the already-necessary session establishment and management signalling
Data Source
AI summary
A communication system configured to provide at least two policy controlled data sessions on a data carrier is disclosed. The communication system comprises means configured to provide control such that at least two data sessions on a data carrier are policy controlled by means of a policy controller entity.