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Chapter 7 Using 5G NR Signal Analyzer
Conducting PDSCH measurement
Symbol Phase Compensation is used to compensate for phase differences
between symbols caused by upconversion. Users do not always use the instru-
ment based on RF frequency. In this case, you can set it to Manual or Off.
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14 Tap PDSCH Configuration or the Configuration icon on the screen to set
PDSCH EVM in the PDSCH EVM Setting window appeared.
a
b
c
d
e
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Auto: Setting radio frequency to center frequency
Manual: Setting radio frequency as required
Off: Setting radio frequency to 0
Tap Data and select Data Subcarrier Spacing from the following options: 15
kHz, 30 kHz, 60 kHz, or 120 kHz.
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Start Symbol and Number of RBs are automatically changed based on
the Data Subcarrier Spacing selection.
Tap Grid to set the resource grid that BWP to be assigned per each numer-
ology (SSB SCS and Data SCS).
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In the formula, a wider numerology between SSB SCS and Data SCS
represents μ0 and a narrower numerology represents μ.
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Based on the input numerology and bandwidth you have set, input Start
Grid and Size Grid using the on-screen keyboard.
Tap Bandwidth Part to set the range that to be assigned BWP for the input
Data SCS.
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In the formula, input Start BWP and Size BWP value using the on-screen
keyboard.
Back to Data, do the following steps:
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Select Slot Number for analyzing PDSCH EVM from 1 to 19 using the
on-screen keyboard.
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Tap Offset RB and Number of RBs to set resource blocks within the
range of BWP using the on-screen keyboard.
NOTE
You need to input values for Offset RB and Number of RBs considering the
range that actual data should be allocated. As the input values need to be
within the range of BWP, if you assign data from BWP start RB, the Offset RB
should be 0.
Tap Start Symbol and Number of Symbols set from 10 to 13 using the
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on-screen keyboard.
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Tap Modulation type and select the options from: QPSK, 16 QAM, 64
QAM, or 256QAM.
Tap PDSCH DM-RS and do the following steps:
SPA06MA-O User's Guide
22145360, R005
April 2021
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