WPAN Friendly Name Data Distribution Mechanism
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Solution Overview
Problem
Existing wireless personal area networks (WPANs) face challenges in minimizing interference and unauthorized access while efficiently distributing data between devices, particularly in scenarios where multiple devices are connected within a limited communication channel.
Innovation Solution
The system employs a 'friendly name' mechanism where a first device generates a modified message by replacing or augmenting data within the friendly name to distribute additional information to third devices via out-of-band communication, even if a direct data connection is not established between the first and third devices, using protocols like Bluetooth, ensuring secure and efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices are connected within a WPAN to enable data distribution, then data sharing capability is improved, but interference and unauthorized access increase
Solution Approach 1:
The patent segments data distribution into two distinct pathways: direct connections for authorized devices and broadcast messages for unauthorized devices. This segmentation allows the system to control access differently for different device groups, reducing interference while maintaining data distribution capability
Solution Approach 2:
The patent introduces an intermediary mechanism where broadcast messages serve as a mediator between the first device and third devices. Instead of establishing direct connections that could be intercepted, the broadcast message acts as an authorized intermediary that safely conveys data to devices that cannot form direct connections, reducing unauthorized access risks
2Reliability
If direct data connections are established between devices in a WPAN, then communication reliability is improved, but network saturation occurs when connections are limited
Solution Approach 1:
The patent makes broadcast messages multi-functional by enabling them to carry both connection request information and actual data payloads. This universality allows a single communication mechanism to serve multiple purposes: establishing connections for authorized devices and distributing data to unauthorized devices, eliminating the need for additional connection channels and preventing network saturation
3Reliability
If connection requests are evaluated and authorized before data transmission, then security is improved, but communication delay increases
Solution Approach 1:
The patent performs preliminary authorization by evaluating connection requests before establishing direct connections. Devices are pre-authorized based on their ability to form direct connections, and this authorization information is cached. When data needs to be transmitted, the system checks this pre-established authorization rather than re-evaluating, reducing communication delay while maintaining security
Data Source
AI summary
A first device may transmit a message, such as a connection request, to a second device, and the message may include a friendly name associated with the first device. A connection may be established between the first and second devices based on the message, and first data may be transmitted via the connection. The first device may generate a modified message by modifying the friendly name based on second data, and the first device may forward the modified message to a third device. The third device may evaluate the modified message to identify and extract the second data.