Dedicated Threshold Configuration for Logged MDT Measurement Logging
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Solution Overview
Problem
Conventional Logged MDT mode in LTE systems limits neighboring cell measurement logs due to uniform and low threshold values for RSRP and RSRQ, resulting in insufficient data collection while prioritizing battery conservation.
Innovation Solution
Implementing a mobile communication method where the radio base station sets a dedicated threshold value for individual mobile stations based on their capabilities and profiles, allowing for expanded neighboring cell measurement ranges without excessive battery consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the predetermined threshold value S search is set to a low value to control battery consumption, then battery consumption is reduced, but the measurement range is limited to cell end areas resulting in insufficient log data
Solution Approach 1:
The patent applies local quality by setting different threshold values for different mobile stations. Instead of using a uniform threshold for all UEs, the base station determines individual threshold values based on each UE's capabilities, battery status, and measurement requirements. This allows the system to optimize measurement ranges locally for each device, enabling sufficient log data collection while considering individual battery constraints.
Solution Approach 2:
The patent implements dynamics by making the threshold value adaptive rather than fixed. The base station dynamically adjusts the threshold value for each mobile station based on current conditions such as battery status, device capabilities, and network requirements. This dynamic adjustment allows the system to balance between battery consumption and measurement data quality in real-time.
2Loss of information
If the predetermined threshold value S search is set to a high value to expand measurement range, then sufficient log data is obtained, but battery consumption increases excessively
Solution Approach 1:
The patent applies parameter changes by adjusting the threshold value parameter based on multiple factors including UE battery status, device capabilities, and network requirements. The base station modifies this parameter dynamically to achieve optimal balance between measurement range and power consumption, rather than using a fixed high or low value for all devices.
Solution Approach 2:
The patent implements local quality by customizing the threshold value for each individual mobile station based on its specific characteristics. Devices with better battery status or higher capabilities receive higher thresholds enabling broader measurement, while devices with limited battery receive lower thresholds to conserve power, optimizing overall system performance.
3Device complexity
If a uniform threshold value is applied to all mobile stations, then system complexity is reduced, but individual battery constraints and measurement requirements cannot be optimized
Solution Approach 1:
The patent applies segmentation by dividing the user base into individual mobile stations, each receiving customized threshold values. Instead of treating all UEs uniformly, the system segments them and applies individualized configurations based on each device's characteristics, enabling optimized performance for each user while maintaining manageable system complexity through automated determination.
Solution Approach 2:
The patent implements self-service by enabling the base station to automatically determine appropriate threshold values for each mobile station without manual configuration. The system self-adjusts parameters based on reported UE capabilities and battery status, reducing configuration complexity while achieving individualized optimization.
Data Source
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AI summary
A mobile communication method according to the present invention having a step of transmitting, by a radio base station eNB#1, to a mobile station UE that is in a connected state in a cell #1, "RRC Connection Release/Logged Measurement Configuration" including a predetermined parameter SSearch/Dedicated; and a step of determining, by the mobile station UE, whether or not a neighboring cell measurement needs to be performed, by using a radio quality of the cell #1, and the predetermined parameter SSearch/Dedicated, when the mobile station UE is in an idle state.