Multiple DRX Configurations for XR Traffic Flow Energy Optimization
Solution Overview
Problem
Current discontinuous reception (DRX) solutions in 5G networks are inefficient for extended reality (XR) applications with multiple traffic flows, leading to high energy consumption and latency due to the inability to configure short active times that match the varying periodicities of different traffic flows.
Innovation Solution
Implementing multiple DRX cycle configurations that can operate simultaneously, each aligned with specific traffic flows, allowing for dynamic adjustment of DRX parameters such as drx-onDurationTimer and drx-InactivityTimer to match the packet transmission duration and periodicity of individual flows, thereby reducing active time and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single long DRX cycle is configured to cover multiple traffic flows with different periodicities, then all traffic flows can be monitored, but the active time becomes excessively long causing high energy consumption
Solution Approach 1:
The patent divides a single DRX configuration into multiple separate DRX configurations, each dedicated to monitoring a specific traffic flow or group of flows with similar periodicities. This segmentation allows each DRX cycle to be optimized for its specific traffic pattern, preventing the need to maintain a single long DRX cycle that covers all flows, thereby reducing overall active time and energy consumption while maintaining reliable monitoring of all traffic flows.
2Use of energy by moving object
If the DRX active time is shortened to save energy, then energy consumption is reduced, but latency increases because the UE may miss incoming packets
Solution Approach 1:
The patent applies local quality by configuring different DRX parameters (such as drx-onDurationTimer, drx-InactivityTimer, and cycle lengths) specifically tailored to the characteristics of each traffic flow. This allows the active time to be precisely matched to when each specific traffic flow is expected to arrive, ensuring low latency for each flow while minimizing unnecessary monitoring periods, thereby reducing overall energy consumption without compromising latency requirements.
3Use of energy by moving object
If multiple DRX configurations are implemented simultaneously, then energy consumption is reduced by optimizing active time for each flow, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing the DRX configuration mechanism to handle multiple configurations through a unified framework. The network can configure multiple DRX parameter sets that share common structures and management procedures, allowing the system to manage multiple DRX configurations using standardized processes rather than requiring entirely separate management systems, thereby reducing the complexity increase that would otherwise result from supporting multiple configurations.
Data Source
AI summary
A method performed by a UE for supporting multiple DRX cycle configurations. The method includes obtaining multiple DRX cycle configurations. The method also includes, for each DRX cycle configuration, identifying a set of one or more flows associated with the DRX cycle configuration.