DTMF Voice Quality Feedback Mechanism for Telecommunication Networks
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Solution Overview
Problem
Current voice communication systems lack an effective mechanism for users to provide feedback on voice quality during calls, which hinders real-time identification and resolution of voice quality issues, such as coverage holes and signal degradation, relying on expensive drive tests and subjective or complex objective methods.
Innovation Solution
A system that allows users to initiate a feedback signal during a call using DTMF signals or other input methods, enabling the network to analyze system parameters and determine the cause of voice quality degradation, potentially resolving issues automatically or manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional drive tests and measurement methods are used to identify voice quality problems, then measurement precision is improved, but loss of time and productivity deteriorate due to expensive and time-consuming manual processes
Solution Approach 1:
The patent implements automated feedback loops where quality indicators are continuously monitored during calls, and the network automatically responds by adjusting parameters or dispatching technicians, eliminating manual drive tests and accelerating problem resolution
Solution Approach 2:
The system enables self-service quality monitoring where the network automatically performs measurements and diagnostics based on quality indicator thresholds, removing the need for manual intervention and reducing time loss while maintaining measurement precision
2Productivity
If automated quality monitoring is implemented using user feedback, then productivity is improved through faster problem identification, but device complexity increases due to additional feedback mechanisms
Solution Approach 1:
The patent leverages existing multi-functional components in mobile devices (microphone, speaker, processor) to generate quality indicators without adding dedicated hardware, thereby improving productivity while minimizing increases in device complexity
Solution Approach 2:
The system uses simple intermediary elements such as DTMF tones or basic sensor readings as quality indicators, which can be generated by existing device components without requiring complex feedback mechanisms, thus maintaining productivity gains while limiting complexity increases
3Reliability
If continuous quality monitoring is performed during calls, then reliability of voice quality management is improved, but use of energy increases due to ongoing measurements and feedback processing
Solution Approach 1:
The patent implements periodic quality monitoring at strategically selected intervals during calls rather than continuous monitoring, maintaining reliable quality management while significantly reducing energy consumption by processing measurements only when quality indicators change or at predetermined time points
Data Source
AI summary
Architecture that facilitates initiation of a user feedback signal during a telephone call when perceiving reduced voice quality. In response to receiving the feedback signal, the telephone network performs a number of measurements on the system and related to the user device that can be analyzed to determine the problem, and potentially resolve the problem. The feedback signal can be initiated by any number of user input means, including selection of a key or combination of keys on a cell phone keypad that generate signals which can be interpreted by the telephone network as the feedback signal, e.g., a DTMF signal.