Cell DRX/DTX Alignment for Non-Integer XR Traffic Cycles
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Solution Overview
Problem
Existing wireless communication systems face challenges in aligning cell discontinuous reception (DRX) or cell discontinuous transmission (DTX) cycles with traffic bursts having non-integer periodicities, leading to potential misalignment and increased latency in data transmission.
Innovation Solution
Configuring non-uniform or non-integer cell DRX/DTX cycles through various methods such as different periodicities, start times, and offset values to align on durations with traffic occasions, minimizing misalignment and latency without significant changes to existing parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If uniform integer periodicity is used for DRX/DTX cycles, then device complexity is reduced and ease of operation is improved, but alignment with non-integer periodicity traffic bursts deteriorates leading to increased latency
Solution Approach 1:
The patent applies parameter changes by modifying the periodicity values of DRX/DTX cycles from uniform integers to non-uniform or non-integer values. Specifically, the network entity configures different periodicities for different DRX/DTX cycles (e.g., first periodicity for first cycle, second periodicity for second cycle) or uses non-integer periodicities to match the traffic burst patterns. This parameter adjustment enables alignment between the DRX/DTX on durations and the non-integer periodicity traffic occasions, thereby reducing latency without requiring fundamental changes to the DRX/DTX mechanism itself.
2Loss of time
If non-uniform or non-integer periodicities are used for DRX/DTX cycles, then alignment with traffic bursts is improved reducing latency, but device complexity and configuration difficulty increase
Solution Approach 1:
The patent implements feedback mechanisms where the network entity monitors traffic patterns and adjusts DRX/DTX cycle configurations accordingly. The network entity receives feedback about traffic burst characteristics (including non-integer periodicities) and dynamically configures appropriate periodicities for DRX/DTX cycles. This feedback loop enables the system to automatically adapt to varying traffic patterns without requiring manual reconfiguration, thereby maintaining ease of operation while achieving alignment with non-integer periodicity traffic.
3Loss of time
If DRX/DTX cycles are continuously active, then alignment with all traffic occasions is maintained, but energy consumption increases reducing energy savings
Solution Approach 1:
The patent applies dynamics by making the DRX/DTX cycle characteristics adjustable and adaptive rather than static. The network entity dynamically configures different periodicities, on duration lengths, and offset values based on current traffic conditions. When traffic bursts are detected with specific periodicities, the system activates DRX/DTX cycles with matching parameters; when traffic is absent, the system can transition to longer cycles or deeper sleep states. This dynamic behavior maintains alignment with traffic occasions when needed while preserving energy savings during low-activity periods.
4Adaptability or versatility
If standard integer periodicity configurations are used, then compatibility with existing systems is maintained, but adaptability to non-integer periodicity traffic patterns deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the DRX/DTX configuration into multiple independent cycle definitions, each with its own periodicity parameters. Instead of using a single uniform periodicity for all cycles, the system segments the configuration into first DRX/DTX cycles with first periodicities and second DRX/DTX cycles with second periodicities. This segmentation allows each segment to be independently optimized for specific traffic patterns, including non-integer periodicities, while maintaining overall system compatibility through standardized configuration interfaces.
Data Source
AI summary
This disclosure provides methods, components, devices and systems for configuration of non-uniform or non-integer cell DRX or DTX cycles. Some aspects specifically relate to configuration of non-uniform or non-integer cell DRX or DTX cycles to align with communicated data such as XR content having a non-integer periodicity. In some examples, a UE receives from a network entity one or more configurations indicating a non-uniform or non-integer timing pattern associated with a cell DRX or DTX cycle. For example, a configuration may indicate a set of different integer periodicities, rational cycle periodicities, start times, or adjustment values to align the on durations of respective cycles with traffic occasions associated with non-integer periodicities. The UE may alternatively receive multiple configurations to this effect. Consequently, XR content or other data may respectively be communicated to or from the network entity in the traffic occasions during the on durations of these cycles.