BLE Peripheral Proxy for Rapid Reconnection and Power Management
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing connections between communication devices, particularly when a central device disconnects, leading to power conservation issues and delays in re-establishing connections with peripheral devices, especially in scenarios involving multiple devices and varying duty cycles.
Innovation Solution
A communication device configures peripheral devices for low duty cycle operations when disconnected from the central device and acts as a proxy to manage connections, switching to high duty cycle operations when the central device becomes available, using Bluetooth Low Energy (BLE) technology to conserve power and quickly re-establish connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a communication device disconnects from a central device and operates independently, then power consumption is reduced through low duty cycle operations, but connection re-establishment time increases when the central device becomes available
Solution Approach 1:
The communication device performs preliminary actions by maintaining a listening mode during the disconnection period, periodically checking for the central device's presence. This preliminary monitoring ensures that when the central device becomes available, the connection can be re-established immediately without requiring a full reconnection sequence, thus resolving the contradiction between power saving and quick reconnection.
2Reliability
If a communication device maintains connections with multiple peripheral devices simultaneously, then service availability is improved, but device complexity and power management difficulty increase
Solution Approach 1:
The communication device acts as an intermediary between multiple peripheral devices and the central device. It maintains independent connections with each peripheral device, allowing them to communicate even when the central device is unavailable. This intermediary role simplifies the overall system complexity by managing connections centrally rather than requiring each peripheral device to manage multiple connections simultaneously, thus improving service availability while controlling complexity.
3Reliability
If a communication device uses high duty cycle operations to quickly detect and reconnect with the central device, then connection reliability is improved, but power consumption increases
Solution Approach 1:
The communication device dynamically adjusts its duty cycle based on the connection state. When connected to the central device, it operates at a lower duty cycle to conserve power. When disconnected, it transitions to a higher duty cycle listening mode to detect the central device's availability more quickly. This dynamic adjustment allows the system to achieve reliable connection detection and reconnection while minimizing overall power consumption, resolving the contradiction between connection reliability and power usage.
Data Source
AI summary
A communication device may include a processor configured to establish a connection with one or more peripheral devices in response to a disconnection from an external communication device, determine that the external communication device is connectable based on radio communication signals received from the external communication device, and encode a message to be transmitted to the one or more peripheral devices in response to the determination that the external communication device is connectable, wherein the message is configured to cause the one or more peripheral devices to perform a high duty cycle advertising in accordance with a Bluetooth communication protocol.