Remote UE Sidelink Link Switching and Measurement Reporting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink and Uu link measurements and switching in remote user equipment (UE) for maintaining service continuity and power savings, especially in dynamic environments where sidelink signal quality degrades.
Innovation Solution
The implementation of a method where a remote UE establishes a sidelink connection with a relay UE, performs measurements, and transmits a measurement report to the relay UE and base station, switching to a direct link or reselecting a relay when the sidelink link quality falls below a predetermined threshold, allowing for continuous service and power optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the remote UE continuously monitors both sidelink and Uu link qualities, then the reliability of link switching is improved, but the power consumption increases
Solution Approach 1:
The remote UE autonomously determines link quality based on pre-configured thresholds and automatically triggers measurement reports and switching decisions without continuous network control, reducing signaling overhead and power consumption while maintaining reliable switching
Solution Approach 2:
The system changes the monitoring parameter state from continuous to event-triggered based on quality thresholds, allowing the UE to switch between active monitoring and idle states to optimize power consumption while maintaining switching reliability
2Reliability
If the remote UE performs frequent measurements and reporting, then the service continuity is improved, but the power consumption increases
Solution Approach 1:
The UE performs measurements and reporting periodically or event-triggered based on link quality thresholds rather than continuously, reducing power consumption while maintaining service continuity through timely detection of link degradation
Solution Approach 2:
The system implements feedback mechanisms where measurement reports trigger switching decisions only when quality thresholds are breached, enabling service continuity through responsive rather than continuous monitoring, thus reducing power consumption
3Reliability
If the remote UE switches to direct link when sidelink quality degrades, then the service continuity is improved, but the device complexity increases
Solution Approach 1:
The system dynamically adjusts the communication path (sidelink vs. Uu link) based on real-time quality conditions, enabling service continuity through adaptive link switching while managing complexity through pre-configured switching criteria
Solution Approach 2:
The network configures switching thresholds and parameters as intermediaries that simplify the UE's decision-making process, reducing device complexity by offloading complex switching logic to pre-configured rules while maintaining service continuity
Data Source
AI summary
An embodiment relates to a method for operation of remote UE in a wireless communication system, the method comprising: remote UE establishing a sidelink connection with relay UE; the remote UE transmitting a sidelink signal to the relay UE; the remote UE carrying out measurement; and the remote UE transmitting a measurement report to the relay UE, wherein the measurement report includes a measurement result for a Uu link and is transmitted to a base station, and the measurement report for the Uu link is carried out on the basis of a measurement result for an SL link being less than a certain threshold value.