Keysight Technologies C Series User Manual page 387

Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF
Option 377, 5G NR / 5G NR EVM Conducted Option 378
How to Set Up Over–the–Air (OTA) Mode Settings
IMPORTANT! When you select multiple CCs (e.g., CC0, CC1, etcetera) and
record data, you may actually see other cell signals that do not have
sufficient power to be displayed, but are still detectable. When you select
ALL, multiple component carriers are selected, but the results of the
component carrier (CC) with the highest power is displayed. Refer to
Figure 13-17 on page
5. Optional: Press Sweep 3 and modify/select items:
6. Press
7. Optional: Press Meas Setup 4 – LTE FDD, LTE TDD, and 5G TF softkeys are
Keysight N9915-90020 User's Guide
Repeat process as needed for additional Windows, Data, and CC settings.
379.
— Single
— Continuous OFF ON
— Restart
— Strip Points
— Log Meas Status OFF ON
Trigger Settings
— Freerun (default) or
— External
sets a sweep to trigger on an external TTL signal at the
External Trigger connector. External trigger is available only after
initial setting.
— Periodic sets a trigger that repeats at the period rate entered.
Periodic trigger's phase can be altered by the Offset value.
only required if scan does not display data.
— LTE FDD and LTE TDD: Press
Wait a few seconds until Table populates or set
Extended.
— Then change back to the desired Frequency Error
Threshold for your measurement.
— 5G TF: Press SyncCorr Th
until the Table populates and
— Then change back to the desired Sync Correlation
Threshold for your measurement.
— 5G NR: Press FreqError Th
few seconds until the Table populates or set SCS,
Lmax values.
— Then press
to ON (default)
FreqError Th
and change to 0% – wait a few seconds
and change to 7.5 kHz (default)– Wait a
More
——Then SSB Offset Detection
detection softkey menu):
and change to 5 kHz –
FreqLock Range
SSB Case, or
opens the SSB offset
to
387