Chapter 8
Using LTE-FDD Signal Analyzer
252
JD700B Series User’s Guide
references.
3
To view the measurement results for a different carrier, press the
View Carrier
soft key and then
select the carrier number to view.
4
Press the
Replace Reference
soft key to replace existing reference values for comparison with
new measurement data.
5
Press the
Load From
soft key to select the location from which references file to be loaded.
Signal performance test
Unlike the other auto measurement tests, the Signal Performance Test runs measurements continuously.
Setting limit for signal performance test
You can set test limits for test item(s) in the auto measurement.
Procedure
1
Press the
LIMIT
hot key.
2
Press the
RF Test Limits > Channel Power
soft key, and then set the limits for the channel
power. Other RF test items are not used in the signal performance test.
3
Press the
Modulation Test Limits
soft key, and then enable test limits as desired.
4
Optional
. You can enable alarm sound that goes off if the measurement falls outside of the limit.
Toggle the
Beep
soft key between
On
and
Off
to enable or disable the beep sound.
5
Optional
. Go to
SAVE/LOAD > Save
, and then select
Limit
to save the limit settings.
See “Using save” on page 35 for more information.
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 214, you can
continue your measurement. The measurement settings can be saved and recalled as a file. You can also
use JDViewer, PC application software to configure a measure setup, save as a file, and load the file on to
the instrument.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Toggle the
Physical Cell ID
soft key and select
Auto
or
Manual
as desired:
Auto:
Lets the instrument detect the Physical Cell ID for the LTE signal automatically.
Manual:
Sets a specific Physical Cell ID for the LTE signal manually in order to speed up
the synchronization with a BTS.
3
Press the
MIMO
soft key, and then select the antenna number option:
2x2
or
4x4
.
This MIMO (Multiple Input Multiple Output) setting is activated only if the option 030 LTE-
Advanced FDD is installed with a license number. If not, the instrument sets this option to 2x2 by
default. A 2x1 or 4x1 RF combiner is also required to able to test on MIMO channels.
4
Press the
Antenna Port
soft key, and then select the option:
Auto
,
0
,
1
,
2
, or
3
.
If the option 030 LTE-Advanced FDD is not installed or if the MIMO is set to 2x2, the antenna
ports 2 and 3 are disabled.
5
Press the
Bandwidth
soft key, and then select the nominal channel bandwidth to be measured,
from the choices:
1.4 MHz
,
3 MHz
,
5 MHz
,
10 MHz
,
15 MHz
, and
20 MHz
.
6
Toggle the
RF Profile
soft key between
On
and
Off
to turn on or off the RF profiling such as
channel power and subframe frequency error.
7
Toggle the
Modulation Profile
soft key between
On
and
Off
to turn on or off the modulation
profiling such as P-SS, S-SS, Data - QPSK, Data – 16 QAM, and Data – 64 QAM.
8
Toggle the
MIMO Profile
soft key between
On
and
Off
to turn on or off the MIMO profiling such
Содержание CellAdvisor JD700B Series
Страница 2: ...CellAdvisorTM JD700B Series FW3 120 User s Guide ...
Страница 105: ...Chapter 4 Using Spectrum Analyzer 104 JD700B Series User s Guide Figure 44 PIM detection for multiple carriers ...
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Страница 734: ...Chapter 18 Perfroming BBU Emulation JD700B Series User s Guide 733 Figure 441 Example of verification of link status ...
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Страница 808: ...Appendix JD700B Series User s Guide 807 JD740B series ...
Страница 811: ...Appendix 810 JD700B Series User s Guide Figure 470 Append keywords window ...