Wireless Apparatus Master-Slave Role Switching for Secure Data Exchange
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting target data between wireless communication apparatuses without relying on access points, particularly in scenarios where security and user convenience are concerns, such as in ad-hoc systems with low security encryption and infrastructure systems requiring complex user settings.
Innovation Solution
A wireless communication system where the first wireless communication apparatus transitions from a master station to a slave station in a different wireless network to enable secure transmission of target data using the second wireless network, employing Wi-Fi Direct (WFD) and normal Wi-Fi systems to form separate networks, allowing secure and convenient data exchange without the need for user-set wireless settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ad-hoc wireless communication is used to enable direct communication between apparatuses without access points, then user convenience is improved, but security is worsened due to low security encryption
Solution Approach 1:
The system segments the wireless communication function into two distinct modes: infrastructure mode (with access points for security) and ad-hoc mode (for convenience). The wireless communication apparatus can dynamically switch between these segmented modes depending on the communication requirements, allowing both security and convenience to be utilized in appropriate scenarios.
Solution Approach 2:
The wireless communication apparatus dynamically changes its operational state between master and slave roles, and between infrastructure and ad-hoc modes. This dynamic adaptability allows the system to optimize for security when using infrastructure mode with access points, while maintaining convenience when using ad-hoc mode, resolving the contradiction between security and ease of operation.
2Reliability
If infrastructure wireless communication through access points is used, then security is improved, but device complexity is worsened due to complex user settings
Solution Approach 1:
The wireless communication apparatus automatically performs infrastructure mode operations including access point selection, authentication, and network joining without requiring user configuration. The system self-manages the complex settings and procedures, providing security benefits while eliminating the complexity burden from users.
Solution Approach 2:
The access point serves as an intermediary that handles the complex security infrastructure operations. Instead of requiring users to directly manage complex security settings, the apparatus communicates through the access point which manages authentication and network protocols, thereby providing security while simplifying the user interface.
3Productivity
If a wireless network with master station is formed, then data transmission capability is improved, but network adaptability is worsened when the apparatus needs to communicate with other master stations
Solution Approach 1:
The wireless communication apparatus dynamically switches between master and slave operational roles. When needing to communicate within its own network, it operates as master for optimal data transmission. When needing to communicate with apparatuses in other networks, it transitions to slave mode to join those networks, thereby adapting to different network contexts while maintaining transmission capability.
Solution Approach 2:
The apparatus is designed with multi-functionality to operate in both master and slave modes, making it universally compatible with different network configurations. This dual capability allows the single apparatus to function effectively whether it needs to transmit data in its own master network or join and communicate within another master's network as a slave device.
Data Source
AI summary
There is provided a wireless communication system including a first wireless communication apparatus and a second wireless communication apparatus. In a specific case, the first wireless communication apparatus changes a state from a first state of being a master station of a first wireless network to a second state of being a slave station of a second wireless network in which the second wireless communication apparatus is a master station, and transmits target data to the second wireless communication apparatus using the second wireless network in which the first wireless communication apparatus is the slave station and the second wireless communication apparatus is the master station. The second wireless communication apparatus receives the target data from the first wireless communication apparatus using the second wireless network.