VoLTE Codec Management With Threshold-Based EVS Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The process of transcoding between different codecs in wireless networks is resource-intensive and can cause delays and unnecessary costs, particularly when providers favor different codecs, leading to inefficient call management.
Innovation Solution
Monitor signal quality metrics during voice calls and dynamically transition to an alternative codec, such as EVS, within the provider's network when signal quality drops below a threshold to prevent call drops and improve user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transcoding is performed between different codecs in wireless networks, then communication compatibility between different providers is improved, but resource consumption increases and processing delays occur
Solution Approach 1:
The patent implements dynamic codec selection based on real-time signal quality monitoring. The system transitions from static codec negotiation to dynamic adaptation, where the codec is selected and switched based on current network conditions (signal strength, quality metrics), allowing the system to optimize resource usage by using transcoding only when necessary while maintaining compatibility across different providers
Solution Approach 2:
The patent changes the parameter of codec selection from a fixed negotiation result to a dynamic parameter that adapts to signal quality conditions. By monitoring signal strength and quality metrics, the system adjusts the codec parameter in real-time, switching between different codecs based on current network conditions to minimize unnecessary transcoding while maintaining communication compatibility
2Adaptability or versatility
If transcoding is performed between different codecs, then communication compatibility is improved, but call quality and processing speed deteriorate due to resource-intensive operations
Solution Approach 1:
The patent performs preliminary codec negotiation during the call setup phase to establish the initial codec configuration. By completing the negotiation upfront and only performing transcoding when signal quality deteriorates, the system minimizes processing delays during critical communication periods while maintaining compatibility through the negotiated codec framework
3Device complexity
If a single codec is used throughout the call, then processing simplicity is maintained, but call quality deteriorates when signal conditions change
Solution Approach 1:
The patent introduces dynamic codec switching capability that activates only when signal quality deteriorates. The system maintains simple single-codec operation during normal conditions but can transition to multi-codec operation when needed, balancing processing simplicity with call quality reliability through condition-based activation
Solution Approach 2:
The patent implements feedback-based codec adaptation by continuously monitoring signal quality metrics and using this feedback to determine when codec switching is necessary. The feedback loop (signal quality measurement → comparison with threshold → codec switching decision) enables the system to maintain call quality without unnecessarily complex processing during normal operating conditions
Data Source
AI summary
Systems and methods are provided for managing VOLTE codecs for voice calls in wireless networks. An example method may include monitoring a signal quality metric of an originating wireless device during a voice call with a terminating wireless device. If it is determined that the signal quality metric drops below a threshold, the codec for the portion of the call between the originating wireless device and the media gateway is transitioned to an alternative codec, such as Enhance Voice Services, for example.