•
RX block
–
The RX block includes two 2-carrier receivers
•
Antenna filter block
–
Antenna filtering for TX and RX signals is done in the Antenna filter block
See the following figure for the functional blocks of the 2 TX RRH.
Figure 14
Functional blocks of the 2TX RRH
RF control
PSU
TX RF
RX
PA
RX filter
TX filter
Optical IF
DC IN
LNA
Bias-T
VSWR
Det
TX RF
RX
PA
RX filter
TX filter
LNA
VSWR
Det
Optical IF
EAC
RET
Bias-T
RF
loop
g
2x60 W RRH have the same functional blocks as 2x40 W RRH except that
2x60W RRH has bias-T only on Branch 1 (with ANT1) to support MHAs in AISG
mode.
RF Module and RRH main blocks
Flexi Multiradio BTS Radio Module and Remote Radio
Head Description
26
DN0951745
Issue: 05