Video Call Link Degradation Identification via Network Quality Metrics
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Solution Overview
Problem
Video calling systems face challenges in identifying the source of quality problems in multi-link connections, making it difficult to isolate and address issues such as packet loss, bit rate inadequacies, and visual artifacts across different links and devices.
Innovation Solution
A system that calculates network and quality metrics of a video call stream across multiple links, determining the presence of network and quality problems to identify degraded links, allowing for targeted issue resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple links are used between endpoints for video calls, then system versatility and routing flexibility are improved, but difficulty of detecting and measuring the source of quality problems worsens
Solution Approach 1:
The patent segments the video stream transmission path into multiple measurable sections by inserting network elements between endpoints. Each network element independently calculates network metrics and quality metrics for the stream segment it receives, allowing the system to divide the complex multi-link transmission into manageable segments that can be individually diagnosed for quality issues.
Solution Approach 2:
The patent implements a feedback mechanism where each network element continuously monitors and calculates metrics of the video stream passing through it, then reports these metrics back to the system. This feedback loop enables real-time identification of which specific link or network element is introducing quality problems, allowing for precise localization of issues in the multi-link transmission path.
2Measurement precision
If network metrics and quality metrics are calculated for each link, then measurement precision is improved, but use of energy and computational resources worsens
Solution Approach 1:
The patent combines multiple metric calculation functions into integrated network elements that simultaneously perform both network metrics calculation and quality metrics calculation. By merging these functions into single network elements positioned at strategic points in the transmission path, the system avoids redundant calculations across multiple separate devices, reducing overall computational resource consumption while maintaining precise quality problem localization.
Data Source
AI summary
Systems, methods, and media for identifying degraded video call links are provided. In some embodiments, systems for identifying degraded video call links are provided, the systems comprising: at least one hardware processor that: calculates network metrics and quality metrics of a video call stream received at a device through a first link and then through a second link; determines whether a network problem is present in the video call stream based on the network metrics; determines whether a quality problem is present in the video call stream based on the quality metrics; and determines that the second link is degraded if both a network problem and a quality problem are determined to be present, and determines that the first link is degraded if a quality problem is determined to be present but a network problem is not determined to be present.