LTE Multi Evaluation Measurement
R&S
®
CMW-KM5xx/-KS5xx
500
User Manual 1173.9628.02 ─ 16
5. Select "Measurement Control > Measurement Subframe > No. of Subframes: 320".
This is the maximum value resulting in maximum measurement speed. And it is a
multiple of 10, ensuring that the number of scheduled subframes per radio frame
can be evaluated correctly.
6. Click "Measurement Control > BLER > No. of Subframes" and configure the num-
ber of subframes to be evaluated in total.
7. Click "Measurement Control > BLER > Scheduled Subframes/Frame" and specify
the number of scheduled subframes per radio frame according to the generated
downlink signal.
8. Click "Trigger > Trigger Source" and select one of the marker signals in the ARB
file to trigger the BLER measurement.
9. Select the appropriate view ("Display > Select View: BLER") and press "ON | OFF"
to start the measurement.
3.2.3 List Mode
The LTE multi evaluation list mode requires option R&S CMW-KM012. In this mode,
the measurement interval is subdivided into segments, according to basic uplink signal
properties like expected power, frequency, channel bandwidth and type of cyclic prefix.
The list mode is designed for single-carrier measurements. It can only be enabled, if
the configured "Carrier Aggregation Mode" equals "Off".
3.2.3.1
List Mode Configuration
Each segment contains an integer number of subframes and is measured at constant
analyzer settings. The figure below shows a series of three segments with different
lengths, expected powers and the listed signal properties. Orange rectangles depict
subframes.
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
General Description
深圳德标仪器
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