UE EMR Measurement Continuation Across RRC State Transitions
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Solution Overview
Problem
Insufficient EMR measurements during transitions to idle or inactive mode can lead to incomplete measurement results, which continue even after transitioning to connected mode in 3GPP LTE systems, affecting the accuracy and reliability of wireless communication.
Innovation Solution
Implementing a method to ensure sufficient EMR measurements are performed before transitioning to idle or inactive mode, and continuing measurements if necessary, to maintain accurate measurement results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal transitions to idle mode/inactive mode to perform EMR measurements, then measurement capability is improved, but measurement completeness deteriorates when measurements are insufficient
Solution Approach 1:
The terminal performs EMR measurements in advance during idle mode or inactive mode before transitioning to connected mode, ensuring that measurements are completed beforehand. This preliminary action allows the terminal to have sufficient measurement results ready when needed, resolving the contradiction between having measurement capability and ensuring measurement completeness.
Solution Approach 2:
The terminal continues performing EMR measurements even after transitioning to connected mode if the measurements were insufficient during idle/inactive mode. This continuous measurement approach ensures that the terminal always has complete and reliable measurement results, maintaining measurement completeness while preserving the measurement capability gained from idle mode operations.
2Reliability
If EMR measurements continue after transitioning to connected mode, then measurement completeness is improved, but system complexity increases
Solution Approach 1:
The measurement continuation behavior is made dynamic based on the sufficiency of measurements performed during idle/inactive mode. The terminal dynamically decides whether to continue measurements in connected mode by evaluating whether the initial measurements were sufficient, thereby adapting the measurement strategy to actual needs and reducing unnecessary complexity while ensuring completeness when required.
Data Source
AI summary
An embodiment of the present disclosure provides a method by which a UE performs communication. The method comprises the steps of: performing n measurements on a specific cell in an idle mode or an inactive mode, wherein, on the basis of the measurements being performed a reference number of times, results of the measurements are valid, and n is less than the reference number of times; performing radio resource control (RRC) state transition to a connected mode; receiving a cell list from a base station; discarding results of the n measurements, wherein, on the basis of the specific cell belonging to the cell list, the UE skips the discarding of the results of the n measurements; and on the basis of the specific cell belonging to the cell list, performing additional measurement on the specific cell.