Multimedia Transcoding Proxy Server Bandwidth Adaptation
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Solution Overview
Problem
Current wireless telecommunications systems lack control over multimedia stream encoding, leading to inefficient bandwidth management and potential service interruptions due to the lack of flexibility in adapting to user capabilities and bandwidth availability, resulting in suboptimal quality of service for users.
Innovation Solution
A communication system that includes a decoder and an encoding system capable of selecting between multiple encoding parameter sets based on system bandwidth, mobile receiver capabilities, user preferences, and quality of service requirements to dynamically re-encode multimedia streams for optimized transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multimedia streams are transmitted with high compression ratio (lower quality), then bandwidth consumption is reduced, but quality of service deteriorates
Solution Approach 1:
The system dynamically adjusts encoding parameters based on current system conditions. The encoding system selects from multiple encoding parameter sets (first set for QCIF or smaller, second set for CIF or larger) depending on real-time bandwidth availability and user capabilities, allowing the quality-compression balance to adapt continuously rather than being fixed
Solution Approach 2:
The patent changes encoding parameters (resolution, compression ratio, encoding standard) based on system conditions. The computer determines which encoding parameter set to use based on system bandwidth, user capabilities, and service requirements, transforming the static encoding process into a variable one that optimizes both bandwidth usage and quality
2Reliability
If multimedia streams are transmitted with high quality (lower compression ratio), then quality of service is improved, but bandwidth consumption increases
Solution Approach 1:
The system applies different quality levels to different users and different streams based on their specific requirements and capabilities. Each user receives multimedia streams encoded with parameters tailored to their device capabilities and service class, rather than applying a uniform encoding standard to all users
3Adaptability or versatility
If multiple encoding parameter sets are maintained, then adaptability to different user capabilities is improved, but device complexity increases
Solution Approach 1:
The system prepares multiple encoding parameter sets in advance (first set for QCIF or smaller, second set for CIF or larger) so that when a multimedia stream needs to be transmitted, the appropriate pre-prepared set can be selected and applied immediately, avoiding complex real-time encoding decisions
4Productivity
If encoding is controlled dynamically based on system conditions, then bandwidth management is improved, but control complexity increases
Solution Approach 1:
The computer determines which encoding parameter set to use based on feedback about system bandwidth, user capabilities, and service requirements. This closed-loop control allows the system to respond to changing conditions and optimize bandwidth utilization while maintaining appropriate quality levels
Data Source
AI summary
Digital multimedia is broadcast by a wireless provider by first decoding incoming multimedia streams and then encoding each stream using one of at least two encoding parameter sets as appropriate for the particular user or groups of users to receive the stream.