Conducting Ota Measurement - Viavi SPA06MA-O R005 User Manual

5 Tap to switch CFI to Manual or Auto.
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6 Tap CFI and input a value from 1 to 3 as desired using the on-screen keyboard.
7 Tap SSB frequency and input the value using the on-screen keyboard.
8 Tap GSCN and input the value from 2 to 26639 using the on-screen keyboard. If
you need to search SSB based on ARFCN raster, it would take too long time
since ARFCN raster is very narrow. Therefore, it is recommended that you define
a SSB searching frequency in wider steps. This is the usage/purpose of GSCN.
You can search the frequency corresponding to GSCN in maximum 100 MHz
bandwidth of ARFCN that SPA06MA-O supports.
Figure 151
Figure 151 5G DSS DSS time alignment error measurement

Conducting OTA measurement

The following sections describe how to conduct OTA analysis.
April 2021
Auto lets the instrument set the number of OFDM symbols used for transmit-
ting PDCCHs in a subframe.
Manual sets the number of OFDM symbols manually. The set of OFDM
symbols that can be used for PDCCH in a subframe is given by 0, 2, 3 or 4 in
1.4 MHz bandwidth and 1, 2 or 3 in other bandwidths.
NOTE
Based on the GSCN input frequency, the SSB Frequency is automatically
changed.
shows an example of DSS time alignment error measurement.
SPA06MA-O User's Guide
22145360, R005
Chapter 9 Using 5G DSS Signal Analyzer
Conducting OTA measurement
Page 327