XR Configured Grant Pattern Adaptation for Packet Skipping
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Solution Overview
Problem
5G NR systems face challenges in efficiently managing resource allocation for extended reality (XR) applications with varying QoS demands, including high capacity and low latency requirements, while optimizing power consumption and adapting to different XR use cases.
Innovation Solution
A radio network node configures a protocol data unit skipping mechanism, allowing user equipment to report packet transmission failures, and adjusts configured grant resources based on failure indications to optimize resource patterns for XR devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If configured grant resources are allocated for XR traffic, then resource allocation efficiency is improved, but packet transmission failures occur when traffic patterns vary
Solution Approach 1:
The patent implements dynamic adaptation of configured grant resources by monitoring packet transmission failures and adjusting resource patterns accordingly. The system transitions from static resource allocation to dynamic resource adaptation, where the radio network node modifies configured grant resources based on observed transmission failures, thereby maintaining both efficiency and reliability under varying traffic conditions
Solution Approach 2:
The patent establishes a feedback mechanism where the radio network node monitors packet transmission failures reported by user equipment and uses this feedback to adjust configured grant resources. The failure indication triggers resource pattern adjustments, creating a closed-loop control system that continuously optimizes resource allocation based on actual transmission performance
2Use of energy by moving object
If protocol data unit skipping is implemented, then power consumption is reduced, but transmission reliability deteriorates
Solution Approach 1:
The patent implements partial action by allowing protocol data unit skipping only when failure indications are detected, rather than continuously skipping. The system selectively applies skipping based on monitored transmission performance, thereby reducing power consumption during problematic periods while maintaining reliability during normal operation
Solution Approach 2:
The patent changes the transmission parameter state by switching between normal transmission and skipping modes based on monitored failure rates. The system dynamically adjusts transmission behavior parameters in response to observed performance, enabling power savings when needed while preserving reliability when transmission conditions are good
3Productivity
If configured grant resources are shared among multiple user equipments, then resource utilization is improved, but resource conflicts and failures increase
Solution Approach 1:
The patent implements dynamic resource pattern adjustment for shared configured grant resources. When transmission failures are detected on shared resources, the system adapts by modifying the resource patterns, thereby maintaining high utilization while resolving conflicts that lead to failures through dynamic adaptation
Data Source
AI summary
A radio network node configures an extended reality processing unit with a packet skipping reporting criterion and a resource pattern indicative of resources, shareable among extended reality appliances, to facilitate delivery to the node of traffic associated with the appliances. The processing unit determines that one or more of the appliances has failed to transmit, according to the resource pattern, a number of traffic packets that satisfies the reporting criterion. Satisfaction of the reporting criterion triggers transmission of a packet skipping report to the node. Based on a number of appliances, indicated in the report, corresponding to satisfaction of the reporting criterion, the node updates a report count indicative of appliances with respect to which reporting corresponding to the pattern has been transmitted and indicates to the processing unit a different resources pattern, corresponding to a lower report count, to facilitate delivery of traffic with respect to the appliances.