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Configuring Tx parameters
You can set Tx parameters in the Tx settings window. The Tx settings (Tx1 to Tx3) will
transfer through optic port.
To configure the Tx parameters
1
Tap the Setup (
2
Tap Tx Settings.
3
Set the antenna per carrier group by tapping one of the Map Position (AxC 0 to
AxC7) boxes and enter a value using the on-screen keyboard.
4
To set the I and Q sample widths, tap IQ Sample Width and enter a value
between 4 and 20 by using the on-screen keyboard.
5
Tap Stuffing Bit and enter a value between 0 and 20, using the on-screen
keyboard.
6
To set the first bit position of each AxC Container in the IQ data block of a basic
frame, complete the following steps:
a
b
c
April 2021
) icon on the side bar of each measurement mode.
NOTE
Maximum number of the AxC Group is determined by the factors of link rate,
sample width, oversampling, and signal bandwidth.
NOTE
According to the CPRI specification, the IQ sample width shall be between 4
and 20 bits for I and Q in the uplink and between 8 and 20 bits in the downlink.
Tap Map Position.
Select the AxC Container number you want to set from: AxC 0, AxC 1, AxC
2, AxC 3, AxC 4, AxC 5, AxC 6, or AxC 7. Not all of these are activated,
depending on the bandwidth setting of the network technology you selected.
Enter a value by using the on-screen keyboard.
NOTE
The Antenna-Carrier (AxC) is the amount of digital baseband (IQ) U-plane data
necessary for either reception or transmission of one carrier at one indepen-
dent antenna element. The number of required AxC Container for a basic
frame are two AxCs for 5 MHz, four AxCs for 10 MHz, and eight AxCs for 20
MHz.
SPA06MA-O User's Guide
22145360, R005
Chapter 10 Using RFoCPRI Analyzer
Configuring Tx parameters
Page 365
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