Paging Occasion Scheduling With Positioning Reference Signal Timing
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently scheduling paging occasions based on the timing of positioning reference signal instances, leading to suboptimal power management and increased power consumption due to continuous reception modes.
Innovation Solution
A method is introduced to determine a first window of time for periodic positioning reference signal instances and a second window for paging occasions, allowing for transition between discontinuous reception (DRX) states, enabling efficient monitoring and measurement of PRS resources during specific times, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If devices continuously monitor paging occasions and PRS resources, then positioning accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic action by scheduling paging occasions to coincide with PRS instances, allowing UEs to enter DRX OFF state between these periodic events. The UE only activates to monitor paging and perform PRS measurements at these scheduled periodic intervals, rather than continuously, thereby reducing power consumption while maintaining positioning accuracy when needed.
Solution Approach 2:
The patent applies preliminary action by pre-scheduling paging occasions to align with PRS instance timing. This allows the UE to plan its wake-up periods in advance, transitioning to DRX ON state only when both paging and PRS measurements are scheduled, optimizing power usage before the measurement and monitoring events occur.
2Use of energy by moving object
If devices transition to DRX OFF state to save power, then power consumption decreases, but ability to receive paging and perform positioning measurements is compromised
Solution Approach 1:
The patent merges the paging occasion scheduling with PRS instance timing, so that a single DRX ON state transition enables both paging reception and PRS measurements to occur simultaneously. This combination ensures that the UE maintains reliable access to both functions during active periods while maximizing sleep time to reduce power consumption.
3Adaptability or versatility
If paging occasions are scheduled independently of PRS instances, then scheduling flexibility is maintained, but UE must remain in DRX ON state longer, increasing power consumption
Solution Approach 1:
The patent makes the DRX ON state multi-functional by scheduling both paging occasions and PRS instances to occur during the same active period. This universal approach allows a single wake-up event to serve dual purposes: receiving paging messages and performing positioning measurements, thereby reducing the total time the UE must remain in high-power DRX ON state while maintaining scheduling flexibility through configurable timing parameters.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, timing of a PRS instance is determined, and timing of a PO is determined based at least in part upon the timing of the PRS instance. UE transitions from DRX OFF state to DRX ON state and receives/measures the PO and PRS resource(s) of the PRS instance (e.g., without returning to DRX OFF state or sleep state until both the PO and PRS resource(s) are received/measured).