Communication Interface Switching for Voice Quality
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Solution Overview
Problem
Current communication switching mechanisms in telecommunications networks, such as those using Wi-Fi and 4G/3G technologies, fail to maintain optimal voice quality due to shared radio frequencies and interference, as they do not account for the user's perceived quality of the communication.
Innovation Solution
A method for switching between communication interfaces based on detecting disturbances in the audio signal by counting requests for missing sample replacement, allowing for seamless switching to another network or frequency without measuring network characteristics, thereby ensuring improved audio quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Wi-Fi is used for voice communication, then network coverage and data transmission capability are improved, but voice signal quality deteriorates due to shared radio frequencies and interference
Solution Approach 1:
The patent implements dynamic interface selection by continuously monitoring audio signal quality metrics (such as packet loss rate, jitter, and MOS score) and automatically switching between Wi-Fi and cellular interfaces based on real-time conditions. This dynamic adaptation resolves the contradiction by allowing the system to leverage Wi-Fi's high bandwidth when quality is acceptable while falling back to cellular when quality degrades, thus maintaining both versatility and reliability.
Solution Approach 2:
The patent employs feedback mechanisms by continuously measuring audio signal quality parameters during communication and using these measurements to trigger interface switching decisions. The system monitors metrics such as packet loss rate, jitter, and perceived quality scores, and when thresholds are exceeded, it switches interfaces. This closed-loop feedback resolves the contradiction by ensuring that Wi-Fi is utilized when it provides good quality while automatically correcting when quality deteriorates.
2Productivity
If multiple devices share the same Wi-Fi access point, then network resource utilization is improved, but voice transmission quality deteriorates due to traffic competition
Solution Approach 1:
The patent implements dynamic interface selection that responds to real-time network conditions by monitoring voice signal quality metrics and automatically switching between Wi-Fi and cellular interfaces when quality deteriorates due to traffic competition. This dynamic behavior allows the system to maintain high resource utilization on Wi-Fi when conditions are favorable while ensuring reliable voice transmission by switching to cellular when necessary.
Solution Approach 2:
The patent employs feedback mechanisms by continuously measuring audio signal quality parameters (packet loss rate, jitter, MOS score) during communication and using these measurements to trigger interface switching decisions. This closed-loop feedback resolves the contradiction by allowing Wi-Fi to be fully utilized when it provides adequate quality while automatically correcting when voice transmission quality deteriorates due to shared resource competition.
3Area of stationary object
If Wi-Fi radio link is shared by multiple access points in the same geographic area, then coverage extension is improved, but transmitted voice quality deteriorates due to interference
Solution Approach 1:
The patent implements dynamic interface selection that monitors audio signal quality metrics and automatically switches between Wi-Fi and cellular interfaces when quality deteriorates due to interference from multiple access points. This dynamic adaptation allows the system to benefit from extended Wi-Fi coverage when signal quality is acceptable while maintaining reliable voice transmission by switching to cellular when interference degrades quality.
Solution Approach 2:
The patent employs feedback mechanisms by continuously measuring audio signal quality parameters and using these measurements to trigger interface switching decisions when quality deteriorates due to interference from multiple access points. This closed-loop feedback resolves the contradiction by allowing coverage extension through multiple Wi-Fi access points while automatically correcting when transmitted voice quality deteriorates due to interference.
4Ease of operation
If existing switching mechanisms based on network characteristics are used, then switching capability is improved, but user-perceived quality improvement is insufficient because they do not measure actual audio signal quality
Solution Approach 1:
The patent employs feedback mechanisms by continuously measuring audio signal quality parameters (packet loss rate, jitter, MOS score) at the application layer and using these measurements to trigger interface switching decisions. This approach resolves the contradiction by moving from network-layer metrics to application-layer quality metrics that directly reflect user-perceived quality, ensuring that switching decisions are based on actual audio signal quality rather than abstract network characteristics.
Solution Approach 2:
The patent replaces network-layer switching mechanisms (based on signal strength, available bandwidth, or administrative policies) with application-layer quality-driven switching (based on measured audio signal quality metrics). This substitution resolves the contradiction by replacing indirect network characteristic measurements with direct user-perceived quality measurements, ensuring that switching decisions directly improve user experience.
Data Source
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AI summary
The invention relates to a method for switching from a first communication interface to a second communication interface on a terminal in the process of communication. This method is such that it comprises the following steps: detecting (E201) a number of commands to implement a process of replacing missing samples while the audio of the communication is being decoded; switching (E203) to a second communication interface when the number of commands exceeds a threshold. The invention also relates to a device and communication terminal implementing the method as described.