NB-IoT Multi-Evaluation Measurement
R&S
®
CMW-KM300/-KS300
205
User Manual 1178.5689.02 ─ 06
In "Segment" mode, the retrigger flag of each segment is evaluated. It defines whether
the measurement waits for a trigger event before measuring the segment, or not and
which trigger source is used. For the first segment, the value OFF is interpreted as ON.
Retriggering the measurement is recommended, if the timing of the first slot of a seg-
ment is inaccurate, for example because of signal reconfiguration at the UE. Further-
more, retriggering from time to time can compensate for a possible time drift of the UE.
In the following example, the "Segment" mode is enabled. The measurement stops
when the second segment has been captured and waits for a trigger event from the
globally configured trigger source, before capturing the third segment. After the third
segment, it waits for a trigger event from the IF power trigger source, before capturing
the fourth segment.
Configuration of segments and measurement
Segment configuration and measurement are independent from each other. To perform
a sequence of measurements at maximum speed, proceed as follows:
1. Configure all segments ever needed.
The R&S
CMW supports a range of up to 2000 configured segments.
2. Select up to 1000 consecutive segments within the configured segment range
(consider the maximum number of measured slots).
3. Measure the selected segments.
4. Repeat steps 2 and 3 as often as needed.
The list mode is essentially a single-shot remote control application. When a measure-
ment is initiated in list mode, all defined segments are measured once. Afterwards, the
results can be retrieved using
FETCh
commands.
The following remote control commands are used for list mode settings and result
retrieval.
General Description
深圳德标仪器
135-1095-0799