Unified DRX Cycle for Multi-Periodicity Data Flow Alignment
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multiple data flows with different periodicities over discontinuous reception (DRX) cycles, leading to increased latency and power consumption due to misalignment of DRX cycles with data traffic periodicities.
Innovation Solution
A method and apparatus for wireless communication that allow a user equipment (UE) to receive an indication of DRX on-duration occasions associated with a combination of DRX cycles of different periodicities, enabling the UE to monitor and transmit data flows during aligned periods, thereby optimizing power conservation and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE monitors multiple data flows with different periodicities using separate DRX cycles, then each data flow can be received timely, but the UE cannot sleep continuously and power consumption increases
Solution Approach 1:
The patent combines multiple DRX cycles with different periodicities into a single unified DRX cycle. The network configures a first DRX cycle that encompasses both the first periodicity for a first data flow and the second periodicity for a second data flow. This merging allows the UE to monitor both data flows within one DRX framework while maintaining the ability to sleep during periods when no data is expected, thereby reducing power consumption while ensuring timely reception of both data flows.
2Use of energy by moving object
If the UE uses a single DRX cycle for multiple data flows, then power consumption is reduced, but data flows with different periodicities cannot be monitored accurately
Solution Approach 1:
The patent implements a dynamic DRX cycle configuration where the network can independently adjust the first periodicity and second periodicity within the unified DRX cycle based on traffic conditions. The UE monitors the first data flow at intervals matching its periodicity and the second data flow at intervals matching its periodicity, all within the same DRX cycle. This dynamic adaptability allows the system to optimize power consumption while maintaining accurate periodicity matching for multiple different data flows.
3Reliability
If the UE monitors data flows at every DRX occasion, then no data is missed, but latency increases due to continuous monitoring
Solution Approach 1:
The patent implements periodic monitoring within the DRX cycle where the UE sleeps during intervals when no data is expected and wakes only at specific occasions when data may arrive. The network configures the DRX cycle with on-duration and off-duration periods, allowing the UE to miss no data while avoiding continuous monitoring. This periodic action pattern reduces latency by having the UE available to receive data immediately when it arrives, rather than maintaining continuous monitoring state.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with a configured grant (CG) that indicates a plurality of physical uplink shared channels (PUSCHs) within each CG occasion for the UE. Accordingly, the UE may transmit a plurality of packets across the plurality of PUSCHs within at least one CG occasion for the UE. Numerous other aspects are described.