Multi-Service Wireless Server Using Distinct MAC Addresses
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Bluetooth low energy (BLE) systems face challenges in supporting multiple services simultaneously due to compatibility issues between service providers, leading to difficulties in managing multiple connections and ensuring security.
Innovation Solution
A wireless communication system that employs a server configured to support multi-service, multi-advertising, and multi-connection using distinct media access control (MAC) addresses for different service groups, allowing for simultaneous broadcasting of multiple service advertisements and independent database access based on security levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single Bluetooth slave device supports multiple services using the same MAC address, then device compatibility and service integration are improved, but security control and service isolation are worsened
Solution Approach 1:
The patent segments the single MAC address into multiple virtual MAC addresses, each associated with a specific service group. This allows the Bluetooth slave device to present different MAC addresses to different service providers, enabling service isolation and enhanced security control while maintaining multi-service support capability.
Solution Approach 2:
The patent introduces a service group manager as an intermediary layer between the Bluetooth slave device and multiple service providers. This manager handles MAC address selection and service group management, enabling secure service isolation while maintaining compatibility with multiple service providers.
2Reliability
If multiple advertising signals with different MAC addresses are transmitted simultaneously for different service groups, then service isolation and security are improved, but device complexity and advertising management are worsened
Solution Approach 1:
The patent implements a universal advertising manager that handles multiple advertising signals with different MAC addresses through a single management interface. This manager can selectively activate advertising for different service groups based on connection requests, reducing the operational complexity despite multiple advertising signals being available.
Solution Approach 2:
The patent makes the advertising signal transmission dynamic by enabling or disabling specific advertising signals based on service group activation status. The system adapts its advertising behavior to current service requirements, transmitting only necessary advertising signals rather than all possible signals continuously, thereby reducing management complexity.
3Device complexity
If a single MAC address is used for all services, then advertising signal simplicity is improved, but security levels and unauthorized access control are worsened
Solution Approach 1:
The patent applies different security qualities to different service groups by associating specific MAC addresses with specific security levels. Each service group can have its own MAC address with appropriate security restrictions, allowing high-security services to use dedicated MAC addresses while low-security services use others, thereby preventing unauthorized access while maintaining simple advertising structure for each individual service.
Data Source
AI summary
A wireless communication system includes a server supporting multi-service, multi-advertising, and multi-connection and a plurality of client devices simultaneously receiving a first advertising signal and a second advertising signal from the server through Bluetooth Low Energy (BLE) communication, wherein the first advertising signal includes a first media access control (MAC) address, and the second advertising signal includes a second MAC address different from the first MAC address.