Wireless Terminal DRX Scheduling for Non-Integer XR Traffic Cycles
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Solution Overview
Problem
The mismatch between XR traffic cycles, which are non-integer values, and the integer-based DRX cycles in existing wireless communication systems leads to increased power consumption and latency due to misalignment in active and sleep states.
Innovation Solution
Implementing a non-integer DRX cycle configuration determined by RRC signaling, which adjusts the DRX cycle to align with XR traffic patterns, using parameters such as frame per second (FPS) or quality-of-service (QoS) to optimize power consumption and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an integer-based DRX cycle is used, then the DRX configuration is simple and compatible with existing systems, but it causes mismatch with non-integer XR traffic cycles leading to increased power consumption and latency
Solution Approach 1:
The patent changes the DRX cycle parameter from integer-based to non-integer-based values to match XR traffic patterns. The network device configures non-integer DRX cycle values (e.g., 16.67ms, 33.33ms) that align with XR service intervals, allowing the UE to synchronize its active time with actual traffic generation, thereby reducing unnecessary wake-ups and power consumption.
2Productivity
If an integer-based DRX cycle is used, then the system complexity is low, but it results in latency increase due to misalignment between DRX active time and XR traffic arrival
Solution Approach 1:
The patent introduces non-integer DRX cycle parameters to precisely match XR service intervals. By configuring drx-ScheduledOffset and drx-ScheduledPeriod parameters that reflect actual XR traffic patterns (e.g., 50 FPS = 20ms period), the system achieves better latency performance while maintaining manageable configuration complexity through standardized parameter naming and network-controlled configuration.
3Duration of action of moving object
If the DRX cycle does not align with XR traffic patterns, then the DRX configuration is simple, but it causes increased active time and power consumption
Solution Approach 1:
The patent configures non-integer DRX cycle parameters (drx-ScheduledOffset, drx-ScheduledPeriod) that precisely match XR service intervals. This alignment ensures the UE's active time coincides with XR traffic arrival, minimizing the duration of active state and reducing power consumption by avoiding unnecessary wake-ups during idle periods.
4Loss of time
If the DRX cycle is mismatched with XR traffic, then the configuration is straightforward, but it results in larger latency for data transmission
Solution Approach 1:
The patent introduces non-integer DRX cycle parameters configured by the network to match XR service intervals. By setting drx-ScheduledPeriod to values like 20ms (for 50 FPS) and adjusting drx-ScheduledOffset accordingly, the system minimizes latency for XR data transmission while keeping the configuration manageable through standardized parameter structures and network-controlled configuration procedures.
Data Source
AI summary
The present disclosure provides a wireless communication method for use in a wireless terminal. The method comprises: a radio resource control (RRC) signaling associated with a discontinuous reception (DRX) cycle of a DRX configuration is received from a wireless network node, and the DRX configuration is used to perform a DRX.