Prioritizing Non-Audio Data Over QoS Channels
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Solution Overview
Problem
In wireless communication systems, the concurrent transmission of voice and non-audio media, such as video, often results in an inconsistent user experience due to video packets being allocated a best effort quality of service (QoS) without prioritization, leading to packet loss, jitter, and delay.
Innovation Solution
A method is introduced where higher-priority non-audio data is identified and re-allocated from a non-QoS channel to a QoS channel, allowing it to be transmitted alongside audio data, ensuring critical packets like I-frames and decryption keys receive priority, thereby enhancing the user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video packets are allocated best effort QoS without prioritization, then network resource utilization is maximized, but video transmission reliability deteriorates leading to packet loss, jitter, and delay
Solution Approach 1:
The patent segments video packets into different priority categories: high-priority packets (I-frames, P-frames, decryption keys) and low-priority packets (B-frames). This segmentation allows differential QoS treatment where high-priority packets receive guaranteed bandwidth and low-priority packets receive best-effort service, thereby improving video transmission reliability without requiring complex QoS management for all packets.
Solution Approach 2:
The patent applies local quality by providing differentiated QoS treatment to different portions of video data based on their importance. Critical packets such as I-frames and decryption keys receive prioritized handling with guaranteed delivery, while less critical B-frames receive standard best-effort service. This localized quality enhancement improves overall video reliability without system-wide complexity.
2Reliability
If all non-audio data is transmitted over non-QoS channel, then channel capacity is efficiently utilized, but critical data packets suffer from loss and delay
Solution Approach 1:
The patent segments non-audio data into high-priority and low-priority streams. High-priority data (I-frames, P-frames, decryption keys) is transmitted over the QoS channel with guaranteed delivery, while low-priority data (B-frames) is transmitted over the non-QoS channel. This segmentation ensures critical data reliability while maintaining overall transmission efficiency by not dedicating premium QoS resources to all data types.
Solution Approach 2:
The patent introduces an intermediary mechanism at the transmitter that identifies and separates high-priority packets before transmission. This intermediary function routes critical packets through the QoS channel while allowing less critical packets to use the non-QoS channel, thereby ensuring reliable delivery of essential data without sacrificing overall transmission efficiency.
3Ease of operation
If video streams are transmitted without prioritization, then system simplicity is maintained, but user experience consistency deteriorates
Solution Approach 1:
The patent implements segmentation of video packets into priority-based groups with automated routing. High-priority packets (I-frames, P-frames, decryption keys) are automatically directed to the QoS channel while low-priority packets (B-frames) use the non-QoS channel. This segmentation provides consistent user experience through reliable delivery of critical data while maintaining system simplicity through automated, rule-based packet classification and routing.
Data Source
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AI summary
In an embodiment, a transmitting UE is engaged with a target UE in a communication session supported at least in part via a QoS channel on which audio traffic is primarily carried and a non-QoS channel on which non-audio traffic is carried. The transmitting UE obtains audio data and non-audio data for transmission to the target UE during the communication session, and identifies a subset of higher-priority non-audio data within the obtained non-audio data. The transmitting UE transmits a stream of packets including both the audio data and the subset of higher-priority audio data over the QoS channel instead of the non-QoS channel based on the identification. The target UE receives the stream of packets on the QoS channel, and the target UE identifies and extracts the audio data and the higher-priority non-audio data. After extraction, the target UE plays the audio data and processes the higher-priority non-audio data.