Dynamic Audio Data Rate Control for Wireless Channel Congestion
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Solution Overview
Problem
In wireless communication systems, multiple devices competing for shared resources can lead to insufficient channel resources, resulting in adverse user experiences such as video interruptions or audio stuttering, due to unequal airtime usage by different technologies like Wi-Fi and Bluetooth.
Innovation Solution
Implementing a system that dynamically adjusts the audio data rate of devices based on channel airtime availability and congestion, by determining threshold values from channel status data and modifying parameters like sampling frequency, bit depth, and compression ratio to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices communicate using a single communication channel, then device connectivity and communication capability are improved, but channel resource availability deteriorates due to unequal airtime usage
Solution Approach 1:
The system dynamically adjusts the audio data rate of Bluetooth devices based on real-time channel conditions and airtime usage. The controller continuously monitors channel status and modifies communication parameters to balance resource allocation across multiple devices, transforming a static resource allocation problem into a dynamic adaptation process that resolves the contradiction between maintaining connectivity and preserving channel availability
Solution Approach 2:
The invention changes the audio data rate parameter of Bluetooth communication based on channel conditions. By adjusting this parameter dynamically, the system can reduce airtime consumption when channel resources are scarce while maintaining connectivity, thus resolving the contradiction between device versatility and resource availability
2Quantity of substance
If audio data rate is reduced to free up channel resources, then channel resource availability is improved, but audio quality deteriorates
Solution Approach 1:
The system dynamically adjusts audio data rate based on real-time channel conditions rather than using a fixed reduction. This allows the audio quality to be maintained at the highest possible level while still freeing up sufficient channel resources when needed, resolving the contradiction between resource availability and quality through adaptive control
Solution Approach 2:
The invention changes audio data rate parameters (such as sampling frequency, bit depth, or compression ratio) based on channel conditions. These parameter adjustments are optimized to minimize impact on perceived audio quality while achieving the necessary resource release, thus resolving the quality-resource tradeoff
3Quantity of substance
If audio data rate is dynamically adjusted based on channel conditions, then channel resource allocation is improved, but system complexity increases
Solution Approach 1:
The system implements a feedback mechanism where the controller monitors channel status and airtime usage, then adjusts audio data rate accordingly. This closed-loop control automates the resource allocation process, improving channel utilization while managing complexity through systematic decision-making rather than ad-hoc adjustments
Solution Approach 2:
The controller automatically monitors channel conditions and adjusts audio data rates without requiring manual intervention or complex external coordination. This self-service approach resolves the resource allocation problem while keeping system complexity manageable by distributing the control intelligence to the devices themselves
Data Source
AI summary
Described are techniques for improving the performance of a first device that uses a first communication protocol by modifying the audio data rate associated with a second device that uses a second communication protocol. Data indicative of access and use of a communication channel by the first device may indicate a level of use associated with a communication channel or a level of channel resources used by the first device. If the parameters determined from the access data deviate from one or more threshold values, the audio data rate of the second device may be modified to change the quantity of resources used by the second device.