Radio Terminal Positioning Accuracy Control for Drive-Test Minimization
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Solution Overview
Problem
Current radio communication systems face inefficiencies in drive-test minimization due to low positioning accuracy and unnecessary measurement/reporting of radio characteristics, leading to increased load on radio terminals and reduced usefulness of collected data.
Innovation Solution
A radio terminal configured with positioning accuracy calculation and reporting control mechanisms that only report measurement results meeting a required positioning accuracy, thereby optimizing measurement and reporting based on calculated positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the radio terminal performs periodic measurement and reporting of radio characteristics, then the radio network can collect drive-test substitution data, but the positioning accuracy of the collected data becomes low and unnecessary data is reported
Solution Approach 1:
The radio terminal calculates positioning accuracy in advance before reporting measurement results. The terminal determines whether positioning accuracy meets a required threshold and selectively reports only when the condition is satisfied, preventing waste of transmission resources and ensuring data quality from the outset
Solution Approach 2:
The system changes the reporting parameter from fixed periodic reporting to conditional reporting based on positioning accuracy threshold. This dynamic parameter adjustment ensures that only high-quality data with sufficient positioning accuracy is reported to the radio network
2Productivity
If the radio terminal performs frequent measurement and reporting, then more data is collected for drive-test minimization, but the load on the radio terminal increases
Solution Approach 1:
Instead of performing measurement and reporting at every predetermined interval, the radio terminal performs partial reporting only when positioning accuracy satisfies the required condition. This selective action reduces unnecessary processing, calculation, and transmission operations, thereby reducing terminal load while still collecting sufficient data for drive-test minimization
Solution Approach 2:
The radio terminal uses feedback from positioning accuracy calculation to control subsequent reporting behavior. By continuously monitoring whether positioning accuracy meets the threshold and adjusting reporting accordingly, the system optimizes the balance between data collection efficiency and terminal resource consumption
3Loss of information
If the radio terminal reports all measurement results, then complete data is provided to the radio network, but irrelevant data with low positioning accuracy increases processing overhead
Solution Approach 1:
The radio terminal extracts and reports only the measurement results that satisfy the positioning accuracy condition, separating high-quality data from low-quality data. This extraction process eliminates irrelevant information before transmission, reducing processing overhead at the radio network while maintaining data completeness for valid measurements
Solution Approach 2:
The system applies different quality standards to different measurement results based on their positioning accuracy. Instead of treating all data uniformly, the terminal identifies and reports only those measurements with sufficient local quality (positioning accuracy), enabling the radio network to process higher-quality data with reduced overhead
Data Source
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AI summary
A radio terminal, which is operative to perform a measurement on the basis of a measurement condition designated by a radio network and to report the result of the measurement, comprises: a position-determination precision calculating means for calculating a position-determination precision of the radio terminal; a required position-determination precision holding means for holding a required position-determination precision related to a condition of position-determination precision; and a measurement reporting control means for comparing the required position-determination precision with the calculated position-determination precision and for controlling the execution of at least one of the radio terminal's measurement and the radio terminal's reporting of the measurement result to the radio network.