Link Decision Device for VoIP Quality Assessment
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Solution Overview
Problem
VoIP links face instability and reliability issues due to the limitations of direct connection and transit methods, which lack comprehensive quality assurance for audio data transmission.
Innovation Solution
A link decision-making method and device assess audio service quality data to determine the best link for VoIP communication between user equipment, dynamically switching between direct and transit connections based on link quality scores and historical data to ensure high-quality service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If direct connection is used for VoIP transmission, then simplicity and transmission efficiency are improved, but stability and controllability deteriorate
Solution Approach 1:
The system dynamically switches between direct connection and transit connection modes based on real-time link quality assessment. The decision-making device continuously monitors audio service quality data and automatically transitions between connection types, making the system adaptive rather than static. This resolves the contradiction by allowing the system to operate in direct mode for efficiency when conditions permit, while switching to transit mode for stability when needed.
Solution Approach 2:
The system changes the connection mode parameter based on assessed link quality. When link quality scores fall below thresholds or degradation is detected, the system transitions from direct connection to transit connection. This parameter change allows the system to optimize between efficiency (direct mode) and reliability (transit mode) based on actual network conditions.
2Reliability
If transit connection is used for VoIP transmission, then stability and controllability are improved, but server resource and bandwidth resource requirements increase
Solution Approach 1:
The system dynamically adjusts connection mode based on assessed quality, transitioning to transit connection only when necessary. This dynamic approach ensures that transit connections (which consume server resources) are established only when link quality degradation is detected or predicted, rather than being permanently active. This resolves the contradiction by minimizing resource consumption while maintaining stability when needed.
Solution Approach 2:
The decision-making device autonomously assesses link quality and determines when transit connection is necessary, eliminating the need for continuous server intervention or manual configuration. The system self-regulates resource usage by automatically switching modes based on real-time conditions, optimizing the balance between stability and resource consumption.
3Reliability
If link decision-making is performed frequently, then link quality is improved, but system overhead and complexity increase
Solution Approach 1:
The system performs link quality assessment and decision-making at periodic intervals rather than continuously. The decision-making device evaluates audio service quality data at defined intervals and only triggers link switching when quality thresholds are breached. This periodic approach maintains link quality through regular monitoring while avoiding the excessive overhead and complexity of continuous real-time decision-making.
Solution Approach 2:
The system uses feedback from audio service quality data to trigger decision-making only when necessary. Rather than constantly evaluating all parameters, the system monitors quality metrics and initiates link switching decisions only when feedback indicates degradation or threshold violations. This feedback-driven approach maintains quality while reducing unnecessary decision-making complexity.
Data Source
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AI summary
Disclosed in the present application is a link decision method, applied to a link decision system. The link decision system comprises a first user equipment and a second user equipment in a VoIP call state, and comprises a transit server and a decision device. A directly-connected first link and a second link for performing transit by means of the transit server exist between the first user equipment and the second user equipment. The method comprises: a decision device receives audio service quality data reported by a first user equipment; determining a link quality score of a current sending link of the first user equipment according to the audio service quality data, the current sending link being the first link or the second link; and according to the link quality score of the current sending link, make a decision to decide that the first link or the second link is used as a subsequent sending link of the first user equipment. The link decision method provided in the present application can ensure that a better link is selected to transmit a VoIP data stream, thereby improving VoIP service quality.