Technical data

Chapter 13 193
GSM/EDGE Programming Commands
EDGE Error Vector Magnitude (EVM)
GSM/EDGE Programming Commands
EDGE EVM results
General Results
Index Result Parameter
0 Overall pass/fail result shows the mask test result (0.0 = pass, 1.0 = fail, -1.0 not
tested).
1 RMS EVM pass/fail result (0.0 = pass, 1.0 = fail)
2 Peak EVM pass/fail result (0.0 = pass, 1.0 = fail)
3 95%ile EVM pass/fail result (0.0 = pass, 1.0 = fail)
4 I/Q origin offset pass/fail result (0.0 = pass, 1.0 = fail)
5 Frequency error pass/fail result (0.0 = pass, 1.0 = fail)
6 RMS 95th %ile EVM pass/fail result (0.0 = pass, 1.0 = fail)
7 Average RMS EVM – a floating point number (in percent) of EVM over the
entire measurement area.
8 Maximum RMS EVM – a floating point number (in percent) of highest EVM
over the entire measurement area.
9 Average Peak EVM - a floating point number (in percent) of the average of the
peak EVMs. Take the peak EVMs from each burst and average them together. If
only one burst in measurement interval, then it returns the peak for the
measurement interval
10 Maximum Peak EVM - a floating point number (in percent) of the maximum
peak EVM. Take the peak EVMs from each burst and identify the highest peak.
If only one burst in measurement interval, then it returns the peak for the
measurement interval.
11 Symbol position of the peak EVM – an integer number of the symbol position
where the peak EVM error is detected.
12 Average Magnitude error – a floating point number (in percent) of average
magnitude error over the entire measurement area. If there is only one burst in
the measurement interval, then it will return the error for the measurement
interval.
13 Maximum Magnitude error – a floating point number (in percent) of maximum
magnitude error over the entire measurement interval.
14 Average Phase error – a floating point number (in degree) of average phase error
over the entire measurement interval.
15 Maximum Phase error – a floating point number (in degree) of maximum phase
error over the entire measurement interval.
16 Average Frequency error – a floating point number (in Hz) of the frequency
error in the measured signal.