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LTE PRACH Measurement
R&S
®
CMW-KM5xx/-KS5xx
749
User Manual 1173.9628.02 ─ 16
Fig. 4-7: Power dynamics limit settings
Characteristics
Refer to 3GPP TS 36.521 V9.3.0, section...
Specified Limit
ON power
6.3.4.2 PRACH and SRS Time Mask
≥ -8.5 dBm, ≤ 6.5 dBm
OFF power
6.3.4.2 PRACH and SRS Time Mask
≤ -48.5 dBm
4.2.9 Measurement Results
The results of the LTE PRACH measurement are displayed in several different views.
Use the "Display" parameters to select the views and to change the appearance and
contents of the views. The views are described in the following sections.
Detailed Views: EVM, Magnitude Error, Phase Error
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Detailed Views: EVM vs Preamble, Power vs Preamble
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Detailed Views: I/Q Constellation Diagram
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Detailed Views: Power Dynamics
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Detailed Views: TX Measurement
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4.2.9.1
Overview
In the overview a selection of the following results can be displayed:
●
Error Vector Magnitude
●
Magnitude Error
●
Phase Error
●
Error Vector Magnitude vs Preamble
●
Power vs Preamble
●
I/Q Constellation Diagram
●
Power Dynamics
●
Most important results of detailed view "TX Measurement"
See also: "TX Measurements" in the R&S
CMW user manual, chapter "System Over-
view"
General Description