Minimization drive test with reduced wireless device memory usage
First Claim
1. A mobile wireless communication device comprising:
- a memory;
a receiver configured to receive a control signal and measurement signals, the control signal comprising a minimization drive test (MDT) configuration parameter indicating at least a measurement interval;
a controller configured to;
execute a minimization drive test (MDT) comprising measuring a signal characteristic of the measurement signals in accordance with the MDT configuration parameter to generate a measurement number of measurements for a measurement period; and
log, in the memory, a log number of log values corresponding to at least some of the measurements, the log number being less than the measurement number, at least one log value corresponding to an average of two or more consecutive measurements, the average of the two or more selected measurements compared to a last log value, a new log value created from the average only when a difference between the average and the last log value is greater than or equal to a threshold.
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Abstract
A mobile wireless communication device efficiently uses memory when performing a minimization drive test (MDT) by storing less than all of the MDT measurements. The mobile wireless communication device receives a control signal comprising MDT configuration parameters indicating at least a measurement interval. When executing the MDT, the mobile wireless communication device measures a signal characteristic of measurement signals in accordance with the MDT configuration parameters to generate a number of measurements for a measurement period. Rather than storing all of the measurements, only a number of log values corresponding to the measurements are stored in memory, where the number of log values is less than the number of measurement values.
23 Citations
15 Claims
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1. A mobile wireless communication device comprising:
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a memory; a receiver configured to receive a control signal and measurement signals, the control signal comprising a minimization drive test (MDT) configuration parameter indicating at least a measurement interval; a controller configured to; execute a minimization drive test (MDT) comprising measuring a signal characteristic of the measurement signals in accordance with the MDT configuration parameter to generate a measurement number of measurements for a measurement period; and log, in the memory, a log number of log values corresponding to at least some of the measurements, the log number being less than the measurement number, at least one log value corresponding to an average of two or more consecutive measurements, the average of the two or more selected measurements compared to a last log value, a new log value created from the average only when a difference between the average and the last log value is greater than or equal to a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of performing a minimization of drive test (MDT), the method comprising:
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obtaining a number of MDT measurement values within a measurement period; applying a logging process to generate a number of log values representing the MDT measurement values, at least one log value of the number of log values based on two or more consecutive measurements of the MDT measurement values, the average of two or more selected measurements compared to a last log value, a new log value created from the average only when a difference between the average and the last log value is greater than or equal a threshold; and logging the log values in memory, the number of log values less than the number of MDT measurement values. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification