NFC-WiFi Handover via Preliminary Connection Setup
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently switching between short-distance NFC communication and longer-range wireless LAN or WiFi Direct communication, leading to potential communication disruptions and increased processing time, especially when transferring large amounts of data.
Innovation Solution
An information processing apparatus and communication terminal equipped with both NFC and wireless LAN interfaces, which determine the optimal communication standard based on distance and data size, allowing seamless switching between NFC and wireless LAN or WiFi Direct to ensure continuous and efficient data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the communication path is switched from short-distance wireless communication to wireless communication according to wireless settings, then the communication range is improved, but the switching time causes communication disruption and increases processing time
Solution Approach 1:
The system performs preliminary actions by establishing the wireless LAN connection in advance when the communication terminal enters the communication range, while maintaining the NFC connection. This allows the wireless LAN to be ready for immediate data transfer without waiting for switching procedures, thus reducing switching time while extending communication range.
Solution Approach 2:
The NFC connection serves as an intermediary that bridges the transition between short-distance and long-distance communication. By maintaining NFC connectivity during the transition period and using it to transfer connection information for wireless LAN, the system ensures continuous communication without interruption during the range extension process.
2Quantity of substance
If data is transferred over wireless communication after switching from short-distance wireless communication, then the data transfer capacity is improved, but the processing load and switching complexity increase
Solution Approach 1:
The system dynamically adjusts the communication mode based on real-time conditions such as communication range and data transfer requirements. When the terminal is within range and large data transfer is needed, it automatically transitions to wireless LAN mode, optimizing data capacity while managing switching complexity through automated decision-making algorithms.
Solution Approach 2:
The communication system is designed with multi-functionality, supporting both NFC and wireless LAN protocols simultaneously. This universal approach allows the system to handle different data transfer scenarios using the most appropriate protocol, increasing data capacity while reducing switching complexity through a unified communication framework that manages both protocols.
Data Source
AI summary
An information processing apparatus and a communication terminal can carry out first wireless communication and second wireless communication. The first wireless communication is established when a distance between the information processing apparatus and the communication terminal is equal to or less than a first distance. The information processing apparatus determines whether data communication is to be carried out over the first wireless communication or the second wireless communication. When the data communication is to be carried out over the first wireless communication, the information processing apparatus carries out the data communication over the first wireless communication. When the data communication is to be carried out over the second wireless communication, the information processing apparatus carries out data communication of first setting information with the communication terminal over the first wireless communication to establish the second wireless communication and carries out data communication over the second wireless communication.