XR DRX Configuration for Jitter-Aware Wireless Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges in handling the jitter and varying frame sizes of XR services, leading to latency and inefficient power consumption due to mismatched DRX configurations and SPS/CG resources, as well as inflexible PDCCH adaption.
Innovation Solution
Implementing multiple values of drx-onDurationtimer, sliding drx-onDurationtimer, large drx-onDurationtimer with skipping, multiple active DRX configurations, additional drx-on durations, and dynamic PDCCH adaption to align with XR traffic patterns and reduce latency and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If DRX configurations are used for power saving, then power consumption is reduced, but latency increases due to mismatched drx-on durations and XR packet arrival times
Solution Approach 1:
The patent implements dynamic DRX configurations where the drx-on duration is adjusted based on XR service requirements and packet arrival patterns. The system transitions from static DRX parameters to dynamic adjustment, allowing the UE to adapt drx-on durations to match actual traffic characteristics, thereby reducing latency while maintaining power saving benefits
Solution Approach 2:
The patent changes the parameters of DRX configurations by introducing multiple drx-on duration values and selecting appropriate durations based on service type and traffic conditions. This parameter adjustment allows optimization of both power consumption and latency by matching drx-on durations to actual XR packet arrival patterns
2Device complexity
If fixed DRX configurations are used, then device complexity is reduced, but adaptability to varying XR traffic patterns deteriorates
Solution Approach 1:
The patent segments the DRX configuration into multiple drx-on duration values, each optimized for different XR service requirements and traffic patterns. By dividing the configuration space into discrete segments, the system maintains manageable complexity while providing adaptability to various traffic conditions through selective activation of appropriate segments
Solution Approach 2:
The patent creates a universal DRX configuration framework that can handle multiple XR service types (eMBB, URLLC, mMTC) and traffic patterns through a single multi-functional configuration mechanism. The system uses a set of drx-on duration values that can be selectively applied to different services, providing versatility without requiring separate configurations for each service type
3Loss of time
If drx-on duration is increased to cover jitter, then latency is reduced, but power consumption increases due to extended active reception periods
Solution Approach 1:
The patent applies partial action by using multiple drx-on duration values instead of a single excessive duration. The system selects the appropriate drx-on duration from the set based on actual traffic conditions, avoiding the need to continuously use an excessively long duration that would waste power, while still covering jitter when necessary
Solution Approach 2:
The patent implements periodic DRX cycles with varying drx-on durations within the cycle. By periodically switching between different drx-on duration values based on traffic patterns and jitter conditions, the system achieves latency reduction during high jitter periods while maintaining power saving during low traffic periods
Data Source
AI summary
A wireless communication method and related devices are provided. The method, performed by a user equipment (UE), including being configured with one or more Discontinuous Reception (DRX) configurations, each DRX configuration comprising one or more drx-on durations matching one or more services. With this method, jitters of (XR) packets can be covered by drx-on durations, facilitating XR traffic service.