BLE Periodic Transmission Control for Multi-Link Audio Quality
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Solution Overview
Problem
Existing Bluetooth low energy (BLE) communication systems face challenges with limited resources leading to reduced audio quality and increased power consumption when multiple communication links are established, such as in multi-point states or when one device is not worn by the user.
Innovation Solution
An electronic device adaptively changes its periodic transmission cycle based on signals received from external devices, adjusting from a first cycle to a second cycle that consumes fewer resources, thereby maintaining audio quality and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a first periodic transmission with a first transmission cycle is performed through a first communication link, then audio quality is maintained, but power consumption increases and resource usage increases when multiple communication links are established
Solution Approach 1:
The transmission cycle is dynamically adjusted based on the communication state. When the external electronic device is in a multi-point state (connected to multiple devices), the transmission cycle is extended from the first transmission cycle to a second transmission cycle that is longer than the first. This dynamic adjustment allows the system to maintain audio quality when needed while reducing power consumption during multi-point connections where audio output may be shared or reduced.
Solution Approach 2:
The patent changes the transmission cycle parameter adaptively based on the communication state. By switching between a first transmission cycle (for normal operation) and a second transmission cycle (for multi-point state), the system optimizes the balance between audio quality and power consumption. The transmission cycle parameter is modified from a shorter duration to a longer duration when entering multi-point state, thereby reducing resource usage while maintaining acceptable audio output.
2Reliability
If a first periodic transmission with a first transmission cycle is performed, then audio quality is maintained, but resource usage increases when multiple communication links are established
Solution Approach 1:
The system dynamically adjusts the transmission cycle based on whether the external device is in a multi-point state. When multiple communication links are established, the transmission cycle is extended to the second transmission cycle, which reduces the frequency of transmissions and thereby conserves system resources such as bandwidth, processing power, and memory while maintaining sufficient audio quality for the current usage scenario.
Solution Approach 2:
The transmission cycle parameter is changed from the first transmission cycle to the second transmission cycle (which is longer) when the external device enters a multi-point state. This parameter change directly reduces resource usage by decreasing the number of transmissions required, while the system ensures that audio quality remains acceptable for the given communication context.
3Use of energy by moving object
If the transmission cycle is extended to reduce power consumption, then battery life is improved, but audio quality may be compromised
Solution Approach 1:
The transmission cycle is dynamically adjusted based on the communication state rather than being fixed. When the external device is in a multi-point state, the system transitions to the second transmission cycle (longer duration) to reduce power consumption. When in normal single-point state, the first transmission cycle (shorter duration) is used to maintain higher audio quality. This dynamic adaptation ensures that audio quality is only reduced when necessary, based on actual usage conditions.
Solution Approach 2:
The system changes the transmission cycle parameter adaptively: using the first transmission cycle for normal operation to maintain audio quality, and switching to the second transmission cycle (longer than the first) when in multi-point state to reduce power consumption. This conditional parameter change allows the system to optimize the trade-off between power consumption and audio quality based on the current communication scenario.
Data Source
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AI summary
An electronic device is provided. The electronic device may comprise communication circuitry for Bluetooth. The electronic device may comprise at least one processor comprising processing circuitry. The electronic device may comprise memory storing instructions and comprising one or more storage media. The electronic device and an external electronic device are interconnected via Bluetooth. A signal is provided from the external electronic device to the electronic device when the external electronic device established an additional connection via Bluetooth to another electronic device.