Multi-Access Session Control via Segmented Setup
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Solution Overview
Problem
Current mobile communication systems lack effective means for establishing sessions and managing user data communication across various access networks, hindering the provision of intermittent mobile services that support multiple access networks.
Innovation Solution
A terminal apparatus and communication control method that include a transmission and/or reception unit for receiving session establishment messages and a controller to establish sessions supporting Access Traffic Splitting, enabling communication through multiple access paths, and a gateway for managing session establishment requests and responses across different access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal supports various access networks for intermittent mobile communication services, then adaptability is improved, but session establishment complexity increases
Solution Approach 1:
The patent segments the session establishment process into distinct phases: initial session setup through first access network, and subsequent access network addition/modification. This segmentation allows complex multi-access sessions to be managed through standardized, modular procedures rather than requiring entirely new complex protocols.
Solution Approach 2:
The patent creates universal session management procedures that work across different access network types (3GPP and non-3GPP). The same core session establishment, modification, and release procedures are applied regardless of which access networks are involved, reducing complexity through standardized multi-functional handling.
2Adaptability or versatility
If multiple access networks are used for user data communication, then communication versatility is improved, but system architecture complexity increases
Solution Approach 1:
The patent implements dynamic access network management where the terminal can add, modify, or release access networks during an active session based on service requirements. The system dynamically adjusts the set of active access networks without requiring complete session re-establishment, allowing flexible adaptation to changing communication needs.
Solution Approach 2:
The core network acts as an intermediary that manages the terminal's connection to multiple access networks. It coordinates session establishment, modification, and release across different access networks, handling the complexity of multi-access management centrally rather than requiring complex distributed coordination between terminal and multiple networks.
3Productivity
If Access Traffic Splitting is implemented for load balancing, then communication efficiency is improved, but control complexity increases
Solution Approach 1:
The patent establishes traffic splitting rules and access network priorities during session setup and modification phases, before actual data communication begins. This preliminary configuration of traffic distribution parameters allows efficient load balancing during data transmission without requiring complex real-time control decisions during active communication.
Data Source
AI summary
To provide a communication control means for establishing a session suitable for a terminal apparatus connecting to multiple access networks of various kinds and a network apparatus, a user data communication control means suitable for a terminal apparatus that has established sessions via multiple access networks and a network apparatus, and the like. This provides a communication control means suitable for a terminal apparatus and a network apparatus that support connection to multiple access networks of various kinds.