Rohde & Schwarz EX-IQ-BOX, Руководство пользователя

Страница: 191 / 418

Protocol Settings
R&S
®
EX-IQ-BOX
176 User Manual 1409.5570.32 ─ 05
"LTE" Select an LTE ( L ong T erm E volution) signal. Based on UMTS, LTE
provides a wireless broadband internet system with voice and other
services built on top, like for example authentication.
LTE bandwidths: 1.4 | 3.0 | 5.0 | 10.0 | 15.0 | 20.0 MHz
"IEEE 802.16 WiMAX"
Select the digital standard IEEE 802.16 WiMAX ( W orldwide I nter-oper-
ability for M icrowave A ccess). WiMAX provides wireless transmission
of data using a variety of transmission modes, as for example point-to-
multipoint links or mobile internet access.
WiMAX bandwidths: 3.5 | 5.0 | 7.0 | 8.75 | 10.0 | 20 MHz
"User defined" Specify a user defined signal for transmission, define a signal with arbi-
trary parameters.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
TX|RX:
​
SIGNal<ch>:
​
STANdard
​
on page 350
Wave file
Indicates the loaded waveform file, if the physical signal source is one of the waveform
memories.
Note: This parameter is relevant when operating with ARB. If you load a file and select
the signal source ARB, R&S DigIConf indicates the file name. For standard communica-
tion signals, the field is hidden.
R&S
DigIConf loads waveforms calculated by simulation software such as Matlab or R&S
WinIQSIM2 into the memory of the R&S EX-IQ-BOX. With the aid of the CPRI breakout
board, the R&S EX-IQ-BOX then embeds the signal into the CPRI protocol.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
TX|RX:
​
SIGNal<ch>:
​
ARB:
​
FILE?
​
on page 338
Frame Data
Sets the user defined pattern of the frame.
Note: The parameter applies to the physical source "Static Frame".
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
CPRI:
​
SFRame<st>:
​
DATA
​
on page 332
Sample Rate
Shows the sample rate. If you process user defined signals, you can set the value.
Note: Consider that the sampling rate of the R&S signal generator fits to the sampling
rate of R&S DigIConf, as well as to the sampling rate of the R&S signal analyzer.
The table shows the predefined sample rates of the available signals. The sample rate
of a digital standard varies corresponding to the frequency.
Table 7-5: Sample rate values, depending on the signal type
Standard Frequency variant Sample Rate
GSM/EDGE 270.8333 kHz
3GPP FDD 3.84 MHz
CDMA 2000 1.228 MHz
CPRI