Nokia Flexi Multiradio BTS User Manual

Figure13
Functionalblocksofthe3-sectorRFModule
Det
VSWRBias-T
Bias-T
RX
filter
RX
filter
TX
filter
RXDiversity
RXMain
TXRX PA
LNA
LNA
RxOUT*FXCx,FXFx
Rx
RxOUT
Tx/Rx
PSU
Fanassembly
DCIN
Det
VSWRBias-T
Bias-T
RX
filter
RX
filter
TX
filter
RXDiversity
RXMain
TXRX PA
LNA
LNA
RxOUT*FXCx,FXFx
Rx
RxOUT
Tx/Rx
RFloop
RXMain
RXDiversity
TXRX PA
TX
filter
RX
filter
RX
filter
Det
VSWRBias-T
Bias-T
LNA
LNA
RxOUT*FXCx,FXFx
Rx
RxOUT
Tx/Rx
RF
control
OpticalIF**
OpticalIF
OpticalIF
RETFXDB,FXEB,
FXFB
FRGP,FRIE,
FXDA,FXCA,
FXEA,FRKA
RFModule
Duplexfilter+
DiversityRX
6.2 RRH Module main blocks
TheRRHincludesthefollowingfunctionalblocks:
•
RFcontrolblock
–
ThereareinterfacesfromtheRFcontrolblocktowardstheSystemModule
throughopticalconnection.MostunitinternalconnectionsaremadefromtheRF
controlblock.Signalprocessingandunitcontrolfunctionalitiesarelocatedinthis
block
•
TXblock
–
AnalogueRFpartsarelocatedintheTXblock
•
RFFrontend
–
IncludesanRXfilterwithLNAs
–
ProcessesairinterfaceRFsignalsforselectedchannels
–
ProvidesconnectionforFlexiAntennaLinetoFlexiMultiradioBaseStation
–
SupportsusageofNSNMastheadAmplifier(MHA)units
–
Containsintegratedbias-Tswithover-currentandundercurrentalarm
detection/protection
•
PAblock
–
ThepoweramplifierblockamplifiesTXblockoutputsignaltoaspecifiedoutput
powerlevel
FlexiMultiradioBTSRadioModuleandRemoteRadio
HeadDescription
RFModuleandRRHmainblocks
Issue:05 DN0951745 25
 

Nokia Flexi Multiradio BTS Specifications

General

Brand	Nokia
Model	Flexi Multiradio BTS
Category	Accessories
Language	English