Cellular-Wi-Fi Traffic Splitting via Modem-Application Coordination
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Solution Overview
Problem
Conventional aggregation techniques for wireless communication networks are deficient or sub-optimal in managing concurrent data transmission across multiple networks, particularly in configurations involving cellular and Wi-Fi networks.
Innovation Solution
Implementing interfaces and call-flows between a modem processor and an application processor to coordinate data transmission, with the modem processor controlling traffic splitting between cellular and Wi-Fi networks and establishing multiple access sessions, while the application processor routes traffic based on access traffic steering, switching, and splitting rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional aggregation techniques are used for managing concurrent data transmission across multiple wireless networks, then device compatibility and ease of implementation are maintained, but data transmission efficiency and network performance are deficient or sub-optimal
Solution Approach 1:
The patent introduces an intermediary coordination mechanism between the modem processor and application processor that manages data transmission across multiple wireless networks. This intermediary layer enables optimized traffic steering and network selection without requiring complex modifications to existing device architecture, thus improving data transmission efficiency while maintaining manageable system complexity.
2Stability of the object's composition
If traffic is routed based on access traffic steering, switching, and splitting rules, then data flow coordination is improved, but processing overhead and computational requirements increase
Solution Approach 1:
The patent implements preliminary action by pre-establishing access traffic steering, switching, and splitting rules before data transmission occurs. These rules are configured in advance based on network conditions and service requirements, allowing the system to make rapid routing decisions without intensive real-time computation, thus improving data flow coordination while reducing processing overhead.
3Adaptability or versatility
If multiple access sessions are established for different wireless networks, then network versatility and communication options are improved, but session management complexity and resource overhead increase
Solution Approach 1:
The patent applies segmentation by dividing the multiple access sessions into distinct, independently managed components. Each wireless network connection is treated as a separate session with its own management protocols, allowing the system to maintain multiple network connections simultaneously while simplifying the management of each individual session. This modular approach enables network versatility without proportionally increasing overall management complexity.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may coordinate and improve data flows between wireless communication networks based on messaging between a modem processor and an application processor. In a first example, the modem processor may control the splitting of traffic between a first wireless communication network (e.g., a cellular network) and a second wireless communication network (e.g., a Wi-Fi network). The modem processor may establish a multiple access session (e.g., a multiple access protocol data unit session) that includes a session for each wireless communication network, and route traffic (e.g., communications with a network entity) based on access traffic steering, switching, and splitting (ATSSS) rules. In a second example, the application processor may control the traffic splitting. The application processor may obtain the ATSSS rules from the modem processor, and route traffic accordingly.