DualSteer Traffic Steering Across Multiple Wireless Networks
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Solution Overview
Problem
Existing communication systems struggle to efficiently manage traffic steering, switching, and duplication for DualSteer capable devices across multiple wireless networks, leading to suboptimal performance and resource utilization.
Innovation Solution
A method and apparatus for a WTRU with DualSteer capability that registers with multiple wireless networks based on evaluation criteria, transmits PDU session establishment requests, and receives steering mode configurations to determine how to steer, switch, or duplicate traffic based on triggers and assistance information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traffic steering, switching, and duplication is implemented for DualSteer capable devices across multiple wireless networks, then performance and resource utilization is optimized, but system complexity and difficulty of managing multiple network registrations increases
Solution Approach 1:
The patent introduces a network controller as an intermediary that centralizes the management of traffic steering, switching, and duplication across multiple wireless networks. The controller receives registration information from DualSteer capable devices and coordinates the complex operations of managing multiple PDU sessions and traffic flows, thereby reducing the burden on individual devices and simplifying the overall system architecture while maintaining optimized traffic management
2Adaptability or versatility
If multiple PDU sessions are established with different wireless networks based on evaluation criteria, then adaptability to network conditions is improved, but the time and signaling overhead for session establishment increases
Solution Approach 1:
The patent implements preliminary action by establishing multiple PDU sessions with different wireless networks in advance, before actual traffic needs arise. The device pre-registers with multiple networks and establishes PDU sessions based on evaluation criteria, so that when traffic steering is needed, the sessions are already in place and can be activated quickly without time-consuming establishment delays
Solution Approach 2:
The patent applies dynamics by making the PDU session establishment process adaptive and flexible. The system dynamically evaluates network conditions using predefined criteria and automatically adjusts which networks to register with and which PDU sessions to establish, allowing the system to adapt to changing network conditions while managing session establishment efficiently based on current state
3Measurement precision
If steering mode configuration and assistance information are received from multiple networks, then traffic steering precision is improved, but information processing complexity and signaling overhead increases
Solution Approach 1:
The patent extracts and separates the processing of steering mode configuration and assistance information from the device into the network controller. The network controller receives steering information from multiple wireless networks, processes it centrally, and generates coordinated traffic steering decisions. This extraction reduces the information processing burden on the device while maintaining precise traffic steering through centralized intelligence
Data Source
AI summary
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for a WTRU with DualSteer capability that includes a first user UE and a second UE. The method includes registering each of the first UE and second UE with wireless networks based on first evaluation criteria and on second evaluation criteria, respectively, and transmitting a PDU session establishment request to the wireless networks. The method further includes receiving, from the wireless networks, information indicative of an acceptance of the PDU session establishment request, a steering mode configuration generated based on the first evaluation criteria and the second evaluation criteria, and steering mode assistance information, determining how to steer, switch, split, or duplicate over each PDU session based on: a respective trigger, the respective steering mode assistance information, and respective steering mode configuration, and communicating over the PDU sessions based on the determination.