DRX Cycle Periodicity for Non-Uniform XR Traffic Alignment
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Solution Overview
Problem
Conventional discontinuous reception (DRX) configurations in wireless communication systems face challenges in aligning DRX cycles with non-uniform traffic patterns, particularly in low-latency applications like extended reality (XR), leading to increased latency and power consumption due to misalignment between DRX cycles and traffic periodicities.
Innovation Solution
Implementing a DRX cycle periodicity with a non-integer number selection to align with non-uniform traffic patterns, allowing for dynamic offset adjustments and flexible DRX cycle durations to minimize latency and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional integer-based DRX cycle configurations are used, then the system maintains simple configuration and operation, but the alignment between DRX cycles and non-uniform traffic patterns deteriorates, leading to increased latency and power consumption
Solution Approach 1:
The patent changes the parameter of DRX cycle periodicity from integer-based to rational number-based (non-integer), allowing precise alignment with non-uniform traffic patterns. This parameter change enables the DRX cycle to match traffic periodicity exactly, reducing latency while maintaining manageable configuration complexity through standardized rational number representations.
Solution Approach 2:
The patent introduces dynamic offset adjustments to the DRX cycle configuration, allowing the system to adaptively align DRX cycles with varying traffic patterns. This dynamic capability enables the DRX mechanism to respond to changing traffic conditions, reducing latency for time-sensitive applications while keeping the base configuration relatively simple.
2Use of energy by moving object
If DRX cycles are aligned with non-uniform traffic patterns using non-integer periodicity, then power consumption is reduced by minimizing wake-up frequency, but the configuration and synchronization complexity increases
Solution Approach 1:
By changing the DRX periodicity parameter to rational numbers, the system achieves precise alignment with traffic patterns, reducing unnecessary wake-ups and thus power consumption. The standardized approach to rational number configuration keeps the complexity increase manageable.
Solution Approach 2:
The patent implements feedback mechanisms where the network node provides indications of DRX configuration to the UE, ensuring synchronized understanding of the non-integer periodicity and offset values. This feedback loop reduces configuration errors and simplifies the overall system operation despite the increased precision requirements.
3Reliability
If non-integer DRX cycle periodicity is implemented, then alignment with traffic patterns improves, but the risk of misconfiguration and synchronization errors increases
Solution Approach 1:
The patent employs feedback mechanisms where network nodes transmit DRX configuration indications to UEs, ensuring both parties maintain synchronized understanding of the non-integer periodicity and offset values. This feedback reduces misconfiguration risks by validating the configuration exchange.
Solution Approach 2:
The system enables UEs to self-configure their DRX parameters based on received network indications, with built-in validation logic that checks for configuration consistency. This self-service approach reduces manual configuration errors while maintaining high alignment accuracy.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the indication including a selection of a non-integer number for the DRX cycle periodicity. The UE may receive one or more communications based at least in part on the configuration for the DRX cycle periodicity. Numerous other aspects are described.