Per-Terminal Video Quality Control in Bandwidth-Limited Calls
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Solution Overview
Problem
Existing video call and online broadcasting systems face challenges in maintaining smooth service when multiple terminals consume content in a limited network environment, leading to potential failures due to increased network load.
Innovation Solution
A method for independently controlling video quality in a video call session, including determining the video quality of video call session, including establishing one video call session between multiple terminals, analyzing characteristics such as network status, terminal specifications, and user popularity to determine and adjust video quality independently for each terminal, and a computer-readable recording medium capable of executing the method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video quality is maintained high for all terminals, then service quality is improved, but network bandwidth consumption increases causing service failure in limited network environments
Solution Approach 1:
The patent applies local quality by determining video quality independently for each terminal based on its specific characteristics (terminal type, network environment, user popularity) rather than applying a uniform quality standard to all terminals. This allows each terminal to receive video quality optimized for its local conditions, resolving the contradiction between maintaining high service quality and reducing overall bandwidth consumption.
Solution Approach 2:
The patent changes the video quality parameter dynamically for each terminal based on analyzed characteristics such as terminal specifications, network status, and user popularity. By adjusting video quality parameters individually rather than maintaining a fixed high quality for all terminals, the system resolves the contradiction between service reliability and bandwidth consumption.
2Quantity of substance
If video quality is reduced for all terminals, then network bandwidth consumption is reduced, but service quality deteriorates
Solution Approach 1:
Instead of uniformly reducing video quality for all terminals, the patent applies local quality by determining appropriate video quality for each terminal based on its specific characteristics. This ensures that terminals with good network conditions and high user popularity receive higher quality video, while only terminals with poor network conditions receive reduced quality, thus maintaining overall service quality while reducing total bandwidth consumption.
Solution Approach 2:
The patent applies partial action by reducing video quality only for specific terminals where it is necessary (those with poor network conditions or low user popularity), rather than reducing quality for all terminals. This selective approach maintains service quality for the majority of users while achieving bandwidth reduction where needed.
3Device complexity
If uniform video quality is applied to all terminals, then system complexity is reduced, but network resource utilization becomes inefficient
Solution Approach 1:
The patent implements local quality by determining video quality independently for each terminal based on analyzed characteristics including terminal type, network environment, and user popularity. This approach increases network resource utilization efficiency by matching video quality to actual terminal capabilities and network conditions, while the automated analysis and determination process keeps system complexity manageable.
Solution Approach 2:
The system performs automated analysis of terminal characteristics and automatically determines appropriate video quality for each terminal without requiring manual intervention. This self-service approach enables differentiated video quality control across multiple terminals while keeping the system relatively simple, as the server autonomously makes quality determination decisions based on received terminal information.
Data Source
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AI summary
Provided are a mediation method and a computer-readable recording medium. A mediation method according to an example embodiment of the present disclosure includes establishing one video call session between a plurality of terminals, receiving videos obtained from each of the plurality of terminals, analyzing characteristics of the video call session, and in response to the analysis result, determining respective qualities of videos to be transmitted to each of the plurality of terminals. The plurality of terminals includes one host terminal and at least one guest terminal.