Audio Communication Maintenance in Congested Channels
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Solution Overview
Problem
Audio communication quality deteriorates significantly due to high bit error rates or packet losses, especially in wireless networks, making it difficult to maintain calls even after network issues are identified, as traditional methods fail to adapt effectively.
Innovation Solution
The method involves monitoring the quality of service in communication channels, interrupting audio data transmission and converting it to text data when quality falls below a threshold, allowing continued communication via the signaling channel, and potentially switching back to audio when service quality improves, while maintaining encryption and user language preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speech data is transmitted over a congested payload channel, then audio communication can be maintained, but communication quality deteriorates due to high bit error rate and packet losses
Solution Approach 1:
The system dynamically changes the data format parameter from speech to text based on channel conditions. When the payload channel quality deteriorates below a threshold, the system converts speech to text data, which is more resilient to errors and can be reliably transmitted even in congested conditions, thus maintaining communication continuity while preserving information integrity
Solution Approach 2:
The system introduces text conversion as an intermediary process between the sender and receiver. Instead of directly transmitting speech over the congested channel, the speech is converted to text, transmitted through the unreliable channel, and then converted back to speech at the receiver end, acting as a mediator that protects against channel errors
2Reliability
If speech is converted to text and transmitted over the signaling channel during poor quality conditions, then communication reliability improves, but device complexity increases due to speech-to-text conversion requirements
Solution Approach 1:
The system extracts only the essential communication function from the full speech transmission system. By converting speech to text, the system removes the complex real-time audio processing requirements and transmits only the essential information content, reducing the complexity burden on communication devices while maintaining reliability
Solution Approach 2:
The system creates a textual copy of the speech information instead of transmitting the original speech signal. This text copy is more compact, easier to transmit over unreliable channels, and requires simpler processing at both ends, thereby reducing device complexity while improving communication reliability
3Loss of energy
If the payload channel is dropped during severe congestion, then resource usage is optimized, but audio communication is completely lost
Solution Approach 1:
The system dynamically adapts the communication mode based on channel conditions. Instead of statically dropping the payload channel, the system flexibly switches between speech transmission and text transmission modes, maintaining communication availability by using text as a fallback when audio transmission becomes inefficient
Solution Approach 2:
The system makes the communication channel multi-functional by enabling it to carry both speech and text data depending on conditions. The same signaling infrastructure that normally carries control messages is repurposed to carry text communications, ensuring continuous service availability without requiring separate dedicated channels
Data Source
AI summary
The invention relates to a communication system and a method of maintaining audio communication in a congested communication channel currently bearing the transmission of speech in audio communication between a sender side and a receiver side, the communication channel having at least one signaling channel and at least one payload channel having a quality of service. During the audio communication the quality of service of the payload channel is monitored. If the quality of service of the payload channel is below a threshold the speech at the respective sender side is converted to text; and transmitted over the retained communication channel to the respective receiver side. The text may be converted back to speech at the receiver side.