Dynamic Priority Adjustment for XR Data Packet Delay Budgets
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing delay-dependent priority for extended reality (XR) data communications, particularly in ensuring timely delivery of XR data within specified packet delay budgets.
Innovation Solution
A network node configured to communicate XR data communications based on a physical data channel configuration, where a first XR data communication is assigned a first priority level and a second XR data communication is assigned a higher second priority level if the packet delay budget associated with the physical data channel configuration is within a specified threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed priority level is assigned to all XR data communications, then the system complexity is reduced, but the reliability of meeting packet delay budgets deteriorates
Solution Approach 1:
The patent implements dynamic priority adjustment where the priority level of XR data communications changes based on real-time conditions. Specifically, the priority is adjusted according to the remaining packet delay budget and channel conditions, allowing the system to adapt to varying requirements without fixed priority assignments. This dynamic approach resolves the contradiction by making priority levels flexible rather than static.
Solution Approach 2:
The patent changes the priority parameter based on the packet delay budget remaining time. When the remaining delay budget falls below a threshold, the priority level is automatically increased. This parameter-based adjustment mechanism allows the system to maintain reliability for time-critical transmissions while using a systematic approach that doesn't overly complicate the priority management structure.
2Reliability
If priority is dynamically adjusted based on packet delay budget, then the reliability of XR data delivery is improved, but the processing complexity increases
Solution Approach 1:
The patent uses parameter changes by monitoring the packet delay budget remaining time and adjusting priority levels based on threshold comparisons. This approach improves reliability by ensuring time-critical data receives appropriate priority treatment while maintaining manageable processing complexity through systematic threshold-based decision rules rather than complex algorithms.
Solution Approach 2:
The system implements feedback mechanisms where the remaining packet delay budget is continuously monitored and used to adjust priority levels. This feedback loop ensures that priority assignments respond to actual delivery requirements, improving reliability while the structured feedback mechanism keeps processing complexity manageable through clear decision thresholds.
3Productivity
If multiple priority levels are used for different XR data communications, then the productivity of resource allocation is improved, but the device complexity increases
Solution Approach 1:
The patent employs multiple priority levels to differentiate resource allocation for various XR data communications based on their urgency and channel conditions. This improves resource allocation productivity by ensuring critical data receives preferential treatment. The complexity is managed through systematic parameter-based rules that determine priority level assignment, avoiding arbitrary or overly complex management structures.
Solution Approach 2:
The patent implements dynamic priority level adjustments based on real-time conditions such as remaining packet delay budget and channel quality. This dynamic approach improves resource allocation productivity by adapting to changing requirements, while the structured dynamic rules prevent the system from becoming overly complex in managing multiple priority levels.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may communicate, based at least in part on a physical data channel configuration corresponding to a physical data channel, a first extended reality (XR) data communication corresponding to a first physical data channel occasion associated with the physical data channel configuration, wherein a first priority level is associated with the first XR data communication. The network node may communicate a second XR data communication corresponding to a second physical data channel occasion, wherein a second priority level is associated with the second XR data communication, and wherein the second priority level is higher than the first priority level based at least in part on a packet delay budget associated with the physical data channel configuration being within a specified threshold of packet delay. Numerous other aspects are described.