Wireless LAN Portable Internet Interworking Tunnel
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Solution Overview
Problem
Current wireless local area network (WLAN) Internet services are limited to the coverage area of the WLAN access point and do not support continuous Internet access while the terminal is in motion.
Innovation Solution
Establishing a first wireless data path with a network that supports handover operations and a second data path without handover support, using a tunnel to enable data exchange between the terminal and the Internet, allowing authentication and address allocation through respective servers, and converting data packets between protocols as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If WLAN terminal uses WLAN AP for Internet access, then high speed Internet service is provided, but service is limited to coverage area only
Solution Approach 1:
The patent introduces a portable Internet network as an intermediary system between the WLAN terminal and the Internet. When the terminal moves out of WLAN coverage, the portable Internet network acts as a mediator to maintain connectivity, allowing seamless transition without losing Internet access capability.
Solution Approach 2:
The system dynamically switches between WLAN and portable Internet networks based on the terminal's location and coverage availability. The network selection and handover mechanisms enable the terminal to adapt to changing environmental conditions, maintaining continuous high-speed Internet access regardless of position.
2Adaptability or versatility
If WLAN terminal moves out of coverage area, then mobility is achieved, but Internet service continuity is lost
Solution Approach 1:
The system performs preliminary authentication and network selection actions before the terminal actually moves out of coverage. The handover preparation and pre-establishment of alternative network paths ensure that service continuity is maintained without interruption during the transition.
Solution Approach 2:
The patent implements mechanisms to maintain continuous Internet service during network transitions. Through seamless handover protocols and persistent connection management, the useful action of Internet access continues uninterrupted even as the terminal moves between different network coverage areas.
3Adaptability or versatility
If multiple network protocols are used for interworking, then compatibility is improved, but system complexity increases
Solution Approach 1:
The patent uses protocol conversion entities and gateway systems as intermediaries to handle protocol compatibility between different networks. These intermediaries translate and adapt protocols, allowing seamless interworking between WLAN and portable Internet networks without requiring complex multi-protocol support in each terminal device.
Data Source
AI summary
The present invention relates to an interworking device for interworking with a first network and exchanging data between a second network and a terminal device. The interworking device establishes a first wireless data path with the first network, and receives a first network address from an address allocation server of the first network through the first wireless data path. In addition, the interworking device establishes a second wireless data path with the terminal device, receives a second network address from an address allocation server of the second network through the second wireless data path, and transmits the second network address to the terminal device. Subsequently, the interworking device establishes a tunnel that passes through the first network and is accessed to the second network, and exchanges data with the second network.