Mobile Router Session Proxy for Wireless Connectivity
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Solution Overview
Problem
Mobile end-user devices experience interruptions in wireless connectivity and performance issues due to limitations in conventional WLAN and cellular networks, particularly when moving between network cells or hotspots, leading to restricted mobility and service disruptions.
Innovation Solution
A mobile router that communicates with mobile devices via local wireless networks and acts as a gateway to backhaul networks, utilizing a session proxy module to maintain connectivity and a link monitor module to quickly reestablish connections, while also supporting serial data communication and providing enhanced mobility through integration with vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile user connects to a WLAN access point, then wireless connectivity is provided, but the user's mobility is constrained to the range of the access point
Solution Approach 1:
The patent introduces a mobile router as an intermediary device between the mobile device and the WLAN access point. The mobile router maintains a persistent connection to the access point while the mobile device communicates through the router, allowing the mobile device to move freely within the router's coverage area without being constrained by the access point's range.
Solution Approach 2:
The system segments the connection into two independent parts: a stable connection between the mobile router and the WLAN access point, and a flexible connection between the mobile device and the mobile router. This segmentation allows each part to optimize for its specific function, with the router handling connection stability and the mobile device handling mobility.
2Area of stationary object
If a mobile user moves between network cells or hot spots, then broader coverage is achieved, but service interruptions occur due to hand-off problems
Solution Approach 1:
The mobile router proactively monitors the quality of the connection to the access point and predicts potential connection failures before they occur. When degradation is detected, the router initiates reconnection procedures in advance, maintaining the TCP session and preventing service interruptions for the mobile device.
Solution Approach 2:
The system implements continuous feedback monitoring of connection quality metrics between the mobile router and the access point. This feedback loop enables real-time detection of connection degradation and triggers automated reconnection actions, ensuring service continuity during mobility transitions.
3Reliability
If the mobile router monitors connection quality and reestablishes links, then service continuity is improved, but device complexity increases
Solution Approach 1:
The mobile router implements self-service functionality by automatically monitoring connection quality, detecting failures, and reestablishing links without user intervention. The TCP session proxy automatically manages session state and coordinates reconnection actions, eliminating the need for complex user-side configuration or manual intervention.
Data Source
AI summary
A non-transitory computer readable medium with computer executable instructions stored thereon executed by a processor in a vehicle comprising a wireless local area network interface to communicate with a mobile device via a local wireless network and a backhaul network interface to wirelessly communicate with a backhaul network and to establish a layer 2 communication link and a layer 3 communication link to provide a link monitoring communication method. The method comprises: monitoring the layer 2 communication link and the layer 3 communication links over the backhaul network interface; reestablishing communications via the layer 2 communication link and the layer 3 communication link when a communications failure via the layer 2 communications link is detected; and reestablishing communications via the layer 3 communication link when a communications failure via only the layer 3 communication link is detected.