Aerial UE Measurement Report Enhancement via Prohibit Timer
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Solution Overview
Problem
Current measurement report mechanisms for aerial UEs in LTE networks are inefficient, as they do not directly address total interference and introduce delays in reporting, failing to accurately assess interference from multiple neighboring cells.
Innovation Solution
A method and device for enhanced measurement report configuration, where the UE receives a configuration with specific thresholds and conditions, performing measurements based on new triggering events, and reporting when conditions are met, including formulas for summing neighboring cell measurements and individual cell results, with a prohibit timer to prevent frequent reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multi-cell trigger mechanism is used to detect interference from multiple neighboring cells, then interference detection capability is improved, but measurement report delay increases
Solution Approach 1:
The patent introduces a timer mechanism that starts when the first triggering condition is met and continues monitoring for additional cells. This preliminary action allows the system to prepare for potential additional measurements without waiting for all cells to be fully evaluated, thereby reducing overall reporting delay while maintaining multi-cell interference detection capability.
Solution Approach 2:
The patent implements dynamic monitoring where the system adapts its measurement behavior based on real-time conditions. The timer-based mechanism dynamically determines whether to continue monitoring additional cells or proceed with reporting based on whether new triggering conditions are met within the timer period, optimizing the balance between detection accuracy and reporting speed.
2Measurement precision
If enlarged TTT value is used to await more measurement results, then measurement accuracy is improved, but additional delays are always introduced
Solution Approach 1:
The patent applies partial action by not requiring all measurement results to be collected before reporting. Instead, it reports when a sufficient number of cells meet the triggering conditions, determined by the timer mechanism. This partial approach achieves adequate measurement accuracy without the excessive delay of waiting for all possible measurements.
Solution Approach 2:
The patent changes the time parameter dynamically through the timer mechanism rather than using a fixed enlarged TTT value. The timer can be configured to different durations based on network conditions, allowing flexible adjustment of measurement accuracy versus delay trade-off without being locked into excessive delays.
3Measurement precision
If multi-cell trigger mechanism with timer is used, then interference detection is improved, but reporting frequency increases unnecessarily
Solution Approach 1:
The patent implements feedback through the timer mechanism that monitors whether additional triggering conditions are met within a specified period. This feedback loop prevents unnecessary reporting by only triggering reports when actual changes in interference conditions occur, thereby improving reporting efficiency while maintaining accurate interference detection.
Solution Approach 2:
The timer mechanism serves as a preliminary check before generating measurement reports. By requiring that additional triggering conditions be met within the timer period, it prevents premature or unnecessary reporting, thereby reducing redundant reports and improving overall reporting efficiency while maintaining detection accuracy.
Data Source
AI summary
A method of measurement report enhancement for aerial UE. A method of measurement report enhancement, the method comprising: receiving a measurement report configuration with a new measurement triggering condition and corresponding threshold from eNB; performing measurements of a cells according to the new measurement triggering condition; evaluating if a new triggering condition is satisfied according to the threshold based on the measurement result of cells; and reporting the measurement report to the eNB when the new triggering condition is satisfied.