Traffic Offloading Control via Process Differentiation
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Solution Overview
Problem
Current mobile communication systems face inefficiencies and errors when simultaneously using 3GPP and non-3GPP systems for traffic offloading, as the processes can collide and lead to operational inefficiencies due to overlapping control mechanisms between terminals and provider networks.
Innovation Solution
A method and apparatus for controlling IP flow in mobile communication systems, where terminals and packet data network gateways exchange connection request and response messages to manage IP flow control, allowing for differentiated and efficient traffic offloading processes between 3GPP and non-3GPP networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traffic offloading is performed simultaneously by both terminal and provider network, then traffic offloading capability is improved, but process collision and operational errors occur
Solution Approach 1:
The patent introduces an intermediary mechanism (traffic offloading process differentiator) that mediates between the terminal-initiated and network-initiated traffic offloading processes. This intermediary identifies and distinguishes between the two process types, preventing their collision by ensuring proper sequencing and coordination, thereby maintaining reliability while preserving the dual-initiation capability.
Solution Approach 2:
The patent applies preliminary action by establishing process identification and differentiation mechanisms before traffic offloading operations begin. The system pre-configures markers or identifiers that distinguish terminal-initiated from network-initiated processes, allowing the network to anticipate and properly handle incoming offloading requests without collision, thus preventing errors before they occur.
2Productivity
If traffic offloading processes are differentiated between terminal and network initiation, then operational efficiency is improved, but process complexity increases
Solution Approach 1:
The patent segments the traffic offloading process into distinct types based on initiation source (terminal-initiated vs. network-initiated). By dividing the overall process into separable segments with unique identifiers, the system can handle each type independently and efficiently without requiring complex cross-interaction logic, thus improving operational efficiency while keeping the added complexity manageable.
Solution Approach 2:
The patent applies local quality by assigning specific characteristics or markers to different traffic offloading process types at localized points in the protocol stack. Instead of requiring global process differentiation throughout the entire system, the patent introduces differentiation markers at specific interaction points (e.g., during connection setup or handover), reducing overall system complexity while maintaining operational efficiency.
Data Source
AI summary
The present invention relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The present invention may be used for an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. According to the embodiment of the present invention, when the subject that may start the traffic offloading determination or the traffic offloading process for the terminal that may access both of the 3GPP network and the non-3GPP network is elucidated or at least two traffic offloading processes are performed in parallel, each traffic offloading process may be differentiated from each other to efficiently perform the traffic offloading.