Adapting DRX Configuration for XR Traffic Alignment
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Solution Overview
Problem
Current DRX configurations in wireless communication are inflexible and not suited for evolving application types, particularly for XR traffic, leading to misalignment of packet arrival times and DRX ON durations, which increases energy consumption and reduces user experience.
Innovation Solution
Adapting DRX configuration by obtaining adjusted timing for ON durations based on traffic information, allowing for more flexible alignment of packet arrival times and DRX cycles, thereby reducing energy consumption and improving data reception efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional DRX configuration is used, then energy consumption is reduced, but packet arrival time alignment with ON duration is poor leading to increased energy consumption
Solution Approach 1:
The patent applies dynamics by making the DRX configuration adaptable rather than fixed. The network can dynamically adjust ON duration timing based on actual packet arrival patterns and traffic conditions, allowing the system to optimize the balance between energy saving and timing alignment precision for different scenarios.
Solution Approach 2:
The patent changes key DRX parameters including ON duration length, OFF duration length, and timing offsets based on traffic information and packet arrival characteristics. By adjusting these parameters dynamically, the system achieves better alignment between packet arrivals and ON durations while maintaining energy efficiency.
2Adaptability or versatility
If fixed DRX cycle is used, then device complexity is low, but adaptability to evolving application types is insufficient
Solution Approach 1:
The patent makes the DRX configuration universally applicable to different application types by introducing flexible parameters that can be adjusted based on traffic characteristics. The same DRX framework can serve various applications (XR, video, voice, etc.) by adapting parameters rather than requiring separate configurations for each application type.
Solution Approach 2:
The network performs preliminary analysis of traffic information and packet arrival patterns before configuring DRX parameters. By predicting traffic characteristics in advance, the system can pre-adjust DRX settings to optimize performance for specific application types without requiring complex real-time reconfiguration.
3Productivity
If ON duration is extended to capture more packets, then data reception efficiency improves, but energy consumption increases
Solution Approach 1:
The system uses feedback mechanisms where the network monitors actual packet arrival patterns and DRX performance, then adjusts ON duration and timing parameters accordingly. This feedback loop allows the system to optimize the balance between receiving sufficient packets and minimizing energy consumption based on actual traffic conditions.
Solution Approach 2:
The patent applies partial action by configuring ON durations that are just sufficient to capture expected packets rather than excessively long durations. By using traffic information to predict packet arrival, the system sets ON durations that are optimally sized - long enough to receive packets but not so long as to waste energy on empty reception periods.
Data Source
AI summary
Method carried out in an access node (121) of a wireless network (100) for managing configuration of discontinuous reception, DRX, for a user equipment, UE (10), said DRX configuration comprising ON durations repeated with a DRX cycle, wherein the method comprises: obtaining (520) adjusted timing for a next ON duration, based on traffic information of data for the UE; transmitting (540), to the UE, information (PAR) identifying the adjusted timing; and transmitting (550) the data to the UE in the next ON duration according to the adjusted timing.