BLE Peripheral Advertise Signal Customization for Multi-Device Discovery
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Solution Overview
Problem
In Bluetooth Low Energy (BLE) communication systems, when multiple central devices are present around a peripheral device, the existing technologies struggle to efficiently manage and differentiate advertise signals, leading to inefficient communication and power consumption, as the same advertise signal is broadcasted to all devices without adaptation.
Innovation Solution
The implementation of an electronic device capable of broadcasting customized advertise signals to multiple central devices, with a control circuit that modifies the advertise data based on each device, allowing for tailored communication requests and optimized power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same advertise signal is broadcasted to all devices, then the peripheral device can be discovered by multiple central devices, but the communication efficiency deteriorates and power consumption increases
Solution Approach 1:
The advertise signal is segmented into multiple instances, each tailored for a specific central device. The peripheral device transmits different advertise signals to different central devices based on device information exchanged during connection establishment, enabling targeted discovery and communication optimization.
Solution Approach 2:
Each advertise signal is customized with local quality specific to the target central device. The advertise data includes device-specific information that allows the peripheral to be optimally discovered and connected by each central device individually, rather than using a uniform approach for all devices.
2Adaptability or versatility
If the same advertise signal is broadcasted to all devices, then the peripheral device can be discovered by multiple central devices, but power consumption increases
Solution Approach 1:
The advertising process is segmented into initial connection establishment and subsequent optimized advertising. After the first connection is established and device information is exchanged, the peripheral device segments its advertising strategy to transmit customized signals only to connected centrals, reducing redundant transmissions and power consumption.
Solution Approach 2:
Device information exchange is performed preliminarily during the initial connection establishment phase. This preliminary action enables the peripheral device to subsequently optimize its advertise signals with actual device information, avoiding the need for continuous generic advertising and reducing overall power consumption.
3Productivity
If customized advertise signals are transmitted to each central device, then communication efficiency improves, but device complexity increases
Solution Approach 1:
The system implements feedback through device information exchange during connection establishment. The peripheral device receives device information from each central device and uses this feedback to dynamically generate and transmit customized advertise signals, automatically adapting to each central's characteristics without requiring complex manual configuration.
Solution Approach 2:
The peripheral device performs self-service by automatically managing its own advertise signal customization. It autonomously exchanges device information with each central device and generates appropriate advertise data without external intervention, simplifying the overall system architecture despite the customized signaling.
Data Source
AI summary
An electronic device is capable of executing wireless communication. The electronic device includes a communication circuit and a control circuit. The communication circuit broadcast-transmits an advertise signal for causing the electronic device to be discovered by a plurality of other devices in the wireless communication. The control circuit changes advertise data included in the advertise signal in accordance with each of the other devices.