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WCDMA Multi Evaluation Measurement
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
596
User Manual 1173.9657.02 ─ 11
List Mode
The list mode is essentially a remote control feature; for an introduction see
ter 3.2.3, "Multi Evaluation List Mode"
Option R&S CMW-KM012 required.
Enable ← List Mode
Shows whether the list mode is enabled and disables an enabled list mode. Enabling
the list mode is only possible via the remote control command below.
Remote command:
Offline Segment Nr. ← List Mode
For future extensions.
Modulation / CDP
Controls modulation and CDP measurements.
Measurement Period ← Modulation / CDP
Selects a half-slot or a full-slot measurement.
●
Full-Slot:
The modulation and code domain measurement results are based on the entire
WCDMA slots (667 μs), excluding a 25 μs guard period at the beginning and at the
end. The diagrams/traces contain one value per slot. This measurement mode is
appropriate for signal configurations where the UE power is not expected to
change within the slot (e.g. a pure DPCH without HSDPA channels).
The BER measurement is only supported as full-slot measurement.
●
Half-Slot:
The modulation and code domain measurement results are based on half the
WCDMA slot (333 μs), excluding a 25 μs guard period at the beginning and at the
end of each half-slot. The diagrams/traces contain two values per slot. This mea-
surement is appropriate for signal configurations where the UE power changes
within the slot (e.g. a DPCH + HSDPA channel configuration with appropriate tim-
ing offset).
Half-slot measurements require option R&S CMW-KM401.
Remote command:
Statistic Count ← Modulation / CDP
Defines the number of measurement intervals (for BER transport blocks) per measure-
ment cycle (statistics cycle, single-shot measurement). This value is also relevant for
continuous measurements, because the averaging procedures depend on the statistic
count.
In the WCDMA multi evaluation measurement, the measurement interval is completed
when the R&S
CMW has measured the full sequence of "Measured Slots". The mea-
surement provides two independent statistic lengths for the modulation and spectrum
results. In single-shot mode and with a shorter spectrum statistic length, the ACLR
evaluation is stopped while the R&S
CMW still continues providing new modulation
results.
GUI Reference
深圳德标仪器
135-1095-0799