JD780A Series Analyzers
474
Using Mobile WiMAX Signal Analyzer
Procedure
1.
Press the
MEASURE SETUP
hot key.
2.
Press the
System Config
soft key, and then do the following:
a.
Press the
Bandwidth
soft key, and then select the nominal channel bandwidth to be
measured from the following choices:
–
7 MHz (8/7):
Sets the channel bandwidth to 7 MHz with sampling factor 8/7. In
conjunction with nominal channel bandwidth
–
8.75 MHz (8/7):
Sets the channel bandwidth to 8.75 MHz with sampling factor 8/7
–
10 MHz (28/25):
Sets the channel bandwidth to 10 MHz with sampling factor 28/25
b.
Toggle the
Frame Length
soft key and select
5 ms
or
10 ms
.
c.
Press the
TTG (RTG)
soft key to set the transmit/receive transition gap between the last
sample of the downlink burst and the first sample of the subsequent uplink burst.
d.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
e.
Press the
CP Ratio
soft key, and then select the cyclic prefix ratio option:
1/4
,
1/8
,
1/16
, or
1/32
.
f.
Press the
DL Symbols
soft key to set the number of downlink symbols.
g.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
h.
Press the
UL Symbols
soft key to set the number of uplink symbols.
i.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
3.
To set the start/stop symbols, complete the following steps:
a.
Press the
Start Symbol
soft key.
b.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
c.
Press the
Stop Symbol
soft key.
d.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
4.
Toggle the
Preamble Index
soft key and select the preamble search method:
Auto
or
Manual
.
5.
Toggle the
Search Type
soft key and select
Full
or
Window
.
6.
Optional
. Press the
Miscellaneous
soft key, and then do the following as needed:
–
To select the detect mode, press the
Detect Mode
soft key and then select the option:
Auto
,
QPSK
,
16 QAM
, or
64 QAM
.
–
To select the downlink zone, press the
DL Zone
soft key and then select the permutation
zone option:
Auto
,
PUSC
for partial usage of subcarrier channels,
FUSC
for full usage of
subcarrier channels, or
AMC2X3
for adaptive modulation and coding.
NOTE
The permutation zone, which is a number of contiguous OFDMA, symbols in downlink
that use the same permutation. The DL subframe may contain more than one
permutation zone. The maximum number of DL zone is 8 in one DL subframe.
–
To set the delay, complete the following steps:
a.
Press the
Delay
soft key to set the amount of delay in µs.
b.
Enter a value by using the numeric keys. You can also use the rotary knob.
c.
Press the
µs
soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
Summary of Contents for CellAdvisor JD780A Series
Page 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Page 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
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Page 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...
