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NB-IoT Multi-Evaluation Measurement
R&S
®
CMW-KM300/-KS300
203
User Manual 1178.5689.02 ─ 06
The subcarrier spacing cannot be changed during the measurement. Configure sepa-
rate measurements for different subcarrier spacings.
3.2.5.1
List Mode Configuration
Each segment contains an integer number of slots and is measured at constant ana-
lyzer settings. In each segment, a single NPUSCH transmission is measured.
The NPUSCH transmission must start with the first slot of the segment. At the end of a
segment, you can have additional slots without NPUSCH transmission.
The figure below shows two segments with different lengths and signal properties. The
NPUSCH configuration is listed in the figure. Orange rectangles depict slots of an
NPUSCH transmission.
The dashed slots are part of the configured segment length. But there is no NPUSCH
transmission in these slots.
You can configure up to 2000 segments in total as preparation for list mode measure-
ments. One list mode measurement can cover up to 1000 segments with in total up to
4000 measured slots. For details, see
Maximum number of measured slots
means, for each measurement you select a range of up to 1000 segments to be mea-
sured from the total range of up to 2000 configured segments.
In list mode, the R&S
CMW can measure modulation results (including inband emis-
sion results), ACLR and spectrum emission results. The measured quantities can be
enabled or disabled individually for each segment.
A segment without any enabled measurements is called inactive segment. Inactive
segments are useful for time-consuming UE reconfiguration. For that purpose, you
define alternating active and inactive segments. In the active segments, you measure
the signal. In the inactive segments, you reconfigure the UE for the next measured
segment.
The measurement expects the start of the NPUSCH transmission at the start of the
segment. If the NPUSCH transmission starts later, you can configure an evaluation off-
set so that the measurement starts later. The evaluation offset specifies how many
slots at the beginning of the segment are ignored.
General Description
深圳德标仪器
135-1095-0799