Time Alignment Error - Viavi SPA06MA-O R005 User Manual

To set the limit for
S-SS EVM
PMCH EVM
DLRS Power
P-SS Power
S-SS Power
PBCH Power
Frame Avg Power
OFDM Symbol
Power
IQ Origin Offset
3 Optional: Tap the Save hot key on the side bar and select the save option from the
choices available for your measurement.
Figure 50
Figure 50 LTE/LTE-A FDD frame measurement

Time alignment error

In eNode-B supporting Tx Diversity transmission, signals are transmitted from two or
more antennas. These signals shall be aligned.
The time alignment error in Tx diversity is specified as the delay between the signals
from two antennas at the antenna ports.
Setting measure setup
After configuring the spectrum measurement in
on page
measurement settings can be saved and recalled as a file by selecting File Type as
Setup and load the file onto the instrument using the Save/Load icons on the side bar.
April 2021
Select and set
Test limits On/Off, High Limit
Test limits On/Off, High Limit for QPSK/16 QAM/ 64 QAM
Test limits On/Off, High/Low Limit
Test limits On/Off, High/Low Limit
Test limits On/Off, High/Low Limit
Test limits On/Off, High/Low Limit
Test limits On/Off, High/Low Limit
Test limits On/Off, High/Low Limit
Test limits On/Off, High Limit
shows an example of LTE/LTE-A FDD frame measurement.
9, you can set the measure setup to continue your measurement. The
SPA06MA-O User's Guide
"Configuring spectrum measurements"
22145360, R005
Chapter 5 Using LTE/LTE-A FDD Analyzer
Conducting modulation measurement
Page 109