Communication Device Interface Selection for Wireless Authentication
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Solution Overview
Problem
Existing communication devices using Near Field Communication (NFC) protocols lack the ability to selectively switch between different communication interfaces, limiting flexibility in wireless communication modes and authentication processes.
Innovation Solution
A communication system that includes both NFC and Wi-Fi interfaces, allowing devices to determine the appropriate interface for communication based on authentication information, enabling selective use of either interface for wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication device uses only NFC interface for wireless communication, then authentication security is maintained through centralized control, but communication flexibility and interface selection capability are limited
Solution Approach 1:
The communication device is equipped with multiple wireless communication interfaces (NFC and Wi-Fi) that can be selectively activated based on authentication results. The system universally supports both interfaces to handle different communication scenarios, allowing the device to function as both an NFC terminal and a Wi-Fi terminal depending on the situation.
Solution Approach 2:
The communication interface selection is dynamic rather than static. The device determines whether to use NFC or Wi-Fi interface based on real-time authentication outcomes. The NFC interface is used for initial authentication, and based on the authentication result, the system dynamically switches to appropriate interface for subsequent communication.
2Reliability
If authentication information is required before Wi-Fi communication, then communication security is improved, but communication establishment time increases due to additional authentication steps
Solution Approach 1:
Authentication is performed in advance using the NFC interface before establishing Wi-Fi communication. The NFC terminal transmits authentication information through the NFC interface, and the Wi-Fi terminal performs authentication verification beforehand. This preliminary authentication ensures that only authorized devices can proceed to Wi-Fi communication, securing the subsequent data transmission.
Solution Approach 2:
The NFC interface acts as an intermediary for authentication purposes. Instead of directly establishing Wi-Fi communication, the system uses NFC as a mediator to verify authentication information first. This intermediary step ensures security while enabling the main Wi-Fi communication channel to be established only after verification.
3Adaptability or versatility
If the communication device switches between NFC and Wi-Fi interfaces based on authentication, then communication flexibility is enhanced, but interface switching complexity and potential connection instability increase
Solution Approach 1:
The communication process is segmented into distinct phases: authentication phase using NFC interface and data communication phase using Wi-Fi interface. Each interface is dedicated to specific functions, with NFC handling authentication and Wi-Fi handling bulk data transfer. This segmentation reduces interference between interfaces and maintains connection stability by assigning clear roles to each communication channel.
Solution Approach 2:
The NFC interface serves as an intermediary that validates authentication before enabling Wi-Fi communication. This mediator role ensures that interface switching occurs only under controlled conditions, preventing unstable connections by verifying authentication status before transitioning between communication modes.
Data Source
AI summary
A system and method for providing network information using a short-range wireless communication path between a communication device and a terminal device is described. In some examples, authentication information is required from the terminal device prior to communication of the network information. In some examples, the short-range wireless communication path is disconnected and reestablished in which one of the terminal device and the communication device changes operation modes of a short-range wireless interface.