Dynamic HFP Connection Control for Wearable Bluetooth Calls
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Solution Overview
Problem
Existing Bluetooth communication methods in wearable devices cause user inconvenience and delays when processing call services like short message voice chats or video calls, as users need to operate both the electronic device and wearable device simultaneously, and the process of establishing and disconnecting extended synchronous connection oriented links introduces unnecessary delays.
Innovation Solution
A method where the electronic device automatically disconnects the HFP connection when a preset condition is met, such as not receiving an incoming or outgoing call, and sends notifications to the wearable device to reestablish the connection as needed, allowing the electronic device to process audio without delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic device maintains HFP connection to the wearable device for call services, then the wearable device can process audio data, but unnecessary delays occur when processing non-call audio services
Solution Approach 1:
The HFP connection state is made dynamic rather than static. The electronic device automatically establishes HFP connection when call services are detected and automatically disconnects when non-call audio services are detected, allowing the system to adapt its connection state based on the current service type being processed
Solution Approach 2:
The electronic device monitors the type of audio service being processed and provides feedback by automatically controlling the HFP connection state. When the service type changes from call service to non-call audio service, the device detects this change and automatically disconnects the HFP connection to eliminate delays
2Ease of operation
If the wearable device processes all call services, then Bluetooth calling convenience is improved, but user experience deteriorates when operating both devices simultaneously
Solution Approach 1:
The system dynamically determines which device processes the audio service based on the service type. For call services, the wearable device processes audio through HFP connection providing Bluetooth calling convenience. For non-call audio services, the electronic device processes audio directly, simplifying the operation to a single device and improving user experience
3Productivity
If the electronic device establishes eSco link for audio transmission, then audio data can be transmitted to wearable device, but unnecessary delays are introduced for non-call services
Solution Approach 1:
The electronic device monitors the service type and uses this feedback to control eSco link establishment. When non-call audio services are detected, the device determines that HFP connection should be disconnected, preventing eSco link establishment and eliminating the delay associated with link setup and teardown cycles
Data Source
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AI summary
This application relates to the field of terminal technologies, and provides a Bluetooth communication method, a wearable device, and a system, to avoid always maintaining an HFP connection, so as to avoid an unnecessary delay or a call error caused when an electronic device processes a voice message. The Bluetooth communications system includes an electronic device and a wearable device, and an HFP connection is established between the electronic device and the wearable device. When the electronic device meets a preset condition, the HFP connection is automatically disconnected. The electronic device sends a first notification to the wearable device after receiving an incoming call, to reestablish the HFP connection. In this case, the electronic device may answer the incoming call by using the wearable device.