Video Codec Aware RAN Configuration and Unequal Error Protection
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Solution Overview
Problem
Current wireless communication networks face challenges in delivering high-fidelity quality of experience (QoE) for emerging applications like augmented reality, cloud gaming, and 3D video conferencing, due to increasing video traffic and varying quantitative constraints.
Innovation Solution
The implementation of video codec aware radio access network (RAN) configuration and unequal error protection (UEP) coding, which involves detecting video coded traffic streams, determining video codec profiles, aligning protocol data units (PDUs) with physical layer transport elements, and applying forward error correction (FEC) coding based on channel coding rate allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video codec aware RAN configuration and UEP coding are implemented, then reliability of video content delivery is improved, but device complexity increases
Solution Approach 1:
The patent segments video traffic into different PDU sets based on video codec semantics and importance, applying different error protection strategies to different segments. This segmentation allows selective application of complex UEP coding only where needed, improving reliability for critical video data while limiting the overall complexity increase to manageable levels.
Solution Approach 2:
The patent applies local quality by implementing unequal error protection where different levels of forward error correction are applied to different portions of video data based on their importance. Critical video packets receive stronger error protection while less critical packets receive lighter protection, optimizing reliability for the most important content while controlling overall system complexity.
2Reliability
If video codec aware RAN configuration is implemented, then quality of experience for immersive applications is improved, but processing requirements increase
Solution Approach 1:
The patent performs preliminary action by detecting video coded traffic streams and determining video codec profiles before actual video transmission begins. This advance preparation allows the system to pre-configure appropriate error protection and transmission parameters, improving quality of experience while avoiding the need for complex real-time processing during active video delivery.
Solution Approach 2:
The patent implements feedback mechanisms where the system continuously monitors video traffic characteristics and adjusts error protection and transmission parameters accordingly. This feedback-driven approach allows the system to maintain high quality of experience by adapting to changing video content requirements while optimizing processing requirements by only applying complex processing when actually needed based on real-time conditions.
3Adaptability or versatility
If alignment of PDU sets with PHY transport elements is performed, then scalability of video delivery system is improved, but processing time increases
Solution Approach 1:
The patent applies dynamics by implementing flexible, adaptive alignment of PDU sets with PHY transport elements that can be dynamically adjusted based on video codec profile and traffic conditions. This dynamic alignment approach enables the system to scale efficiently to different video resolutions and bitrates while managing processing time by adapting the alignment complexity to match the actual video delivery requirements rather than always using maximum complexity.
Data Source
AI summary
Various aspects of the present disclosure relate to video codec aware RAN configuration and unequal error protection coding. An apparatus includes a memory and a processor coupled to the memory that is configured to cause the apparatus to detect a video coded traffic stream and a video codec profile for encoding the video coded traffic stream, determine an awareness of PDU sets of the video coded traffic stream, align, based on at least the awareness of PDU sets, each PDU set of the video coded traffic stream to PHY transport elements and channel coding element partitions for a video coded traffic aware PHY transport, determine a channel coding rate allocation of the channel coding element partitions based on the video coded traffic aware PHY transport, and apply a FEC coding to the channel coding element partitions based in part on the channel coding rate allocation.