BLE Control Levels for Wireless Device Security
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Solution Overview
Problem
Bluetooth devices face complexity in connection management and control due to the lack of a standardized method for setting control levels and restricting operations based on security levels, especially in environments with multiple devices and varying use scenarios.
Innovation Solution
A method and device using Bluetooth Low Energy (BLE) technology to establish control levels for controlling other devices, allowing for secure and environment-specific operation restrictions by determining and assigning control priorities based on required security levels, enabling controlled operations such as audio streaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Bluetooth devices establish connections using traditional discovery and connection methods, then device connectivity is achieved, but connection management complexity increases especially in environments with multiple devices
Solution Approach 1:
The patent segments the connection management process by introducing control levels (first, second, third levels) that divide and organize device interactions. Each control level represents a distinct tier of control authority, allowing devices to be managed in structured groups rather than as individual complex connections.
Solution Approach 2:
The patent implements dynamic control levels that can be adjusted based on device roles and environmental context. The control device can transition between different control levels (first, second, third) depending on the operational scenario, allowing flexible adaptation without increasing overall system complexity.
2Adaptability or versatility
If Bluetooth devices allow broad control operations for versatility, then device functionality is enhanced, but security risks increase in shared environments
Solution Approach 1:
The patent applies local quality by assigning different control permissions to different control levels. The first control level provides full control authority, the second level provides partial control, and the third level provides minimal control. This allows security restrictions to be applied locally to specific operations based on the control level, rather than uniformly across all operations.
Solution Approach 2:
The patent changes the security parameter by introducing control levels that modify the degree of access permission. By adjusting the control level parameter, the system can dynamically change security restrictions while maintaining device functionality. The control device determines the appropriate control level based on the operational context and security requirements.
3Reliability
If Bluetooth devices implement detailed control levels for security, then security is improved, but operation complexity increases
Solution Approach 1:
The patent implements a universal control level framework that can be applied across different Bluetooth devices and operational scenarios. The same three control levels (first, second, third) serve multiple functions: they provide security classification, define operational permissions, and simplify device interaction protocols. This multi-functionality reduces operation complexity despite the detailed security classification.
4Reliability
If Bluetooth devices restrict control operations based on control levels, then security is enhanced, but device functionality is limited
Solution Approach 1:
The patent implements dynamic control levels that can be adjusted based on operational context. The control device can transition between first, second, and third control levels depending on the scenario, allowing full functionality when security permits and restricted functionality when security requires. This dynamic adjustment maintains adaptability while enhancing security.
Data Source
AI summary
There is provided a method for controlling a first device by a control device using BLE (Bluetooth Low Energy) technology in a wireless communication system, the method comprises establishing a BLE connection with the first device; opening a control channel for controlling the first device; determining the first device and a specific control level to the first device, via the control channel, wherein the specific control level indicates a control authority to control the first device by the control device, wherein the specific control level is determined based on a required security level for the first device; and controlling a controllable operation for the first device based on the determined specific control level, wherein the controllable operation is defined based on the determined specific control level.