Adaptive Video Coding in Mobile Networks
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Solution Overview
Problem
The variability in maximum available throughput on packet-switched bearers in mobile communication networks can lead to unsatisfactory video reception during video-communication services, affecting user experience.
Innovation Solution
A mechanism is introduced in mobile stations to monitor the quality of the radio channel and adjust video transmission parameters, such as coding rate, based on the monitored radio channel quality, ensuring optimal video quality by adapting to changing network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video is transmitted on packet-switched connection with variable throughput, then data transfer flexibility is improved, but video reception quality deteriorates
Solution Approach 1:
The patent applies dynamics by making the video transmission system adaptive to changing network conditions. The mobile station continuously monitors radio channel quality and dynamically adjusts video transmission parameters (such as coding rate, resolution, or frame rate) based on current throughput conditions. This allows the system to maintain acceptable video quality despite variable packet-switched connection performance.
Solution Approach 2:
The patent implements feedback mechanisms where the mobile station monitors the quality of the radio channel portion of the packet-switched connection and uses this information to adjust video transmission parameters. The system receives feedback about network conditions and adapts its transmission strategy accordingly, creating a closed-loop control system that balances flexibility with video quality assurance.
2Stability of the object's composition
If video transmission parameters are adjusted based on radio channel quality, then video reception stability is improved, but system complexity increases
Solution Approach 1:
The patent applies self-service by enabling the mobile station to autonomously monitor radio channel quality and adjust video transmission parameters without requiring complex external control systems. The device performs self-diagnosis of network conditions and self-adjustment of transmission parameters, reducing the need for complicated network-side control mechanisms while maintaining video reception stability.
Data Source
AI summary
A video-communication service in a mobile communication network using a packet-switched connection, in which a monitoring of a radio channel portion is performed at the mobile stations of the users involved in the communication. Parameters of the video communication (e.g. the coding rate) are adjusted based on a result of the monitoring of the radio channel portion.