ZTE 880219 Users Manual

ZXSDRBS8802C100

ZXSDRCDMABasestation-8802

UserGuide

Version:1.00

ZTECORPORATION
NO.55,Hi-techRoadSouth,ShenZhen,P .R.China
Postcode:518057
Tel:[phone]
Fax:[phone]
URL:http://ensupport.zte.com.cn
E-mail:[e-mail]

LEGALINFORMATION

Copyright©2011ZTECORPORA TION.

Thecontentsofthisdocumentareprotectedbycopyrightlawsandinternationaltreaties.Anyreproductionor

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CORPORATIONoroftheirrespectiveowners.

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UsersmayvisitZTEtechnicalsupportwebsitehttp://ensupport.zte.com.cntoinquirerelatedinformation.

TheultimaterighttointerpretthisproductresidesinZTECORPORATION.

RevisionHistory

RevisionNo.RevisionDateRevisionReason

R1.12011–10–25Updatedthe“FCC&ICSTA TEMENT”and“FCCRadiation

ExposureStatement”.

R1.02011–04–25Firstedition

SerialNumber:SJ-20110329145303-001

PublishingDate:2011–10–25(R1.1)

Content

FCC&ICSTA TEMENT...................................................................................I

FCCRadiationExposureStatement.............................................................I

AboutThisManual.........................................................................................I

Chapter1SystemDescription..................................................................1-1

1.1SystemBackground...........................................................................................1-1

1.2SystemPosition.................................................................................................

1.3Appearance.......................................................................................................

1.4SystemFunctions...............................................................................................1-3

1.5SystemFeatures................................................................................................

1.6ExternalInterfaces.............................................................................................

1.7StandardsComplied...........................................................................................

Chapter2SystemStructure......................................................................

2.1SystemArchitecture...........................................................................................2-1

2.2PRAStructure....................................................................................................2-2

2.3SignalProcessingFlow......................................................................................2-3

Chapter3Indices........................................................................................3-1

3.1PhysicalIndices.................................................................................................

3.2CapacityIndices.................................................................................................3-1

3.3ReliabilityIndices...............................................................................................3-1

3.4PowerIndices....................................................................................................3-2

3.5T emperatureandHumidity..................................................................................3-2

1-1

1-2

1-5

1-6

1-7

2-1

3-1

3.6EnvironmentalClasses.......................................................................................3-2

3.7RFIndices.........................................................................................................3-2

3.8BTSClockT echnicalParameters........................................................................3-6

Chapter4Networking................................................................................4-1

4.1Overview...........................................................................................................4-1

4.2ExistingTransmissionResource..........................................................................4-1

4.3MobileDataNetwork..........................................................................................

4.4PublicNetworkResource....................................................................................4-2

Chapter5Application................................................................................5-1

5.1Overview...........................................................................................................5-1

5.2FamilyCoverage................................................................................................5-1

I

4-2

5.3EnterpriseApplication.........................................................................................5-2

5.4HotSpotandBlindAreaCoverage......................................................................5-3

5.5SpecialApplicationsSolution..............................................................................5-3

Chapter6HardwareInstallation...............................................................6-1

6.1SafetyInstruction...............................................................................................6-1

6.1.1SafetyOverview.......................................................................................6-1

6.1.2SafetySymbols........................................................................................6-1

6.1.3SafetySpecications................................................................................6-3

6.2InstallationPreparation.......................................................................................

6.3ChassisInstallation............................................................................................6-6

6.3.1Pole-MountingaZXSDRBS8802C100.....................................................

6.3.2Wall-MountedInstallation........................................................................6-10

6.3.3Ceiling-MountingtheZXSDRBS8802C100.............................................6-15

6.4CableInstallation..............................................................................................6-19

6.5GPSAntennaFeederSystemInstallation..........................................................6-19

6.5.1GPSAntennaInstallation........................................................................

6.5.2GPSFeederCableSelectionPrinciple.....................................................

6-19

6-25

Figures.............................................................................................................I

Tables............................................................................................................III

Glossary.........................................................................................................V

6-6

6-6

II

FCC&ICSTATEMENT

ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowing
twoconditions:

1.Thisdevicemaynotcauseharmfulinterference.

2.Andthisdevicemustacceptanyinterferencereceived,includinginterferencethatmay
causeundesiredoperation.

Note:

ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital
device,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovide
reasonableprotectionagainstharmfulinterferencewhentheequipmentisoperatedin
acommercialenvironment.Thisequipmentgenerates,uses,andcanradiateradio
frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructionmanual,
maycauseharmfulinterferencetoradiocommunications.

Operationofthisequipmentinaresidentialareaislikelytocauseharmfulinterferencein
whichcasetheuserwillberequiredtocorrecttheinterferenceathisownexpense.

Caution!

Changesormodicationstothisunitnotexpresslyapprovedbythepartyresponsiblefor
compliancewillvoidtheuser’sauthoritytooperatetheequipment.Anychangetothe
equipmentwillvoidFCCandICgrant.

ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital
device,pursuanttotheFCCandICRules.Thisequipmentgenerates,usesandcan
radiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththe
instructions,maycauseharmfulinterferencetoradiocommunications.However,thereis
noguaranteethatinterferencewillnotoccurinaparticularinstallation.

I

II

FCCRadiationExposure Statement

ThisequipmentcomplieswithFCCradiationexposurelimitssetforthforanuncontrolled
environment.Thisequipmentshouldbeinstalledandoperatedwithminimumdistance4m
betweentheradiator&yourbody.

ThisequipmentgeneratesRFelectromagneticenergyduringtransmitmode.

Thisradioisdesignedforandclassiedas“OccupationalUseOnly”,meaningitmust
beusedonlyduringthecourseofemploymentbyindividualsawareofthehazards,and
thewaystominimizesuchhazards.ThisradioisNOTintendedforusebythe“General
Population”inanuncontrolledenvironment.

ThisradiohasbeentestedandcomplieswiththeFCCRFexposurelimitsfor“Occupational
UseOnly”.

Inaddition,theequipmentcomplieswiththefollowingStandardsandGuidelineswith
regardtoRFenergyandelectromagneticenergylevelsandevaluationofsuchlevelsfor
exposuretohumans:

1.FCCOETBulletin65Edition97-01SupplementC,EvaluatingCompliancewithFCC
GuidelinesforHumanExposuretoRadioFrequencyElectromagneticFields.

2.AmericanNationalStandardsInstitute(C95.1-1992),IEEEStandardforSafetyLevels
withRespecttoHumanExposuretoRadioFrequencyElectromagneticFields,3kHz
to300GHz.

3.AmericanNationalStandardsInstitute(C95.3-1992),IEEERecommendedPractice
fortheMeasurementofPotentiallyHazardousElectromagneticFields–RFand
Microwave.

4.Thefollowingaccessoriesareauthorizedforusewiththisproduct.Useofaccessories
otherthanthose(listedintheinstruction)speciedmayresultinRFexposurelevels
exceedingtheFCCrequirementsforwirelessRFexposure.

I

II

AboutThisManual

Purpose

ThismanualdescribesthefeaturesandoperationofZXSDRBS8802C100CDMAindoor
multi-carrierPicoBaseTransceiverStation.

IntendedAudience

Thisdocumentisintendedfor:

lEngineeringtechnicalengineer
lInstallationengineer

PrerequisiteSkillandKnowledge

Tousethisdocumenteffectively,usersshouldhaveageneralunderstandingoftheCDMA
technology.Familiaritywiththefollowingishelpful:

lcdma2000fundamental
lSoftwarebasicknowledge

WhatisinThisManual

Thismanualcontainsthefollowingchapters.

SectionSummary

Chapter1System

Description

Chapter2System

Structure

Chapter3IndicesDescribestheindicesofZXSDRBS8802C100.

Chapter4NetworkingDescribesthenetworkingmodeofZXSDRBS8802C100.

Chapter5ApplicationDescribestheapplicationscenariosofZXSDRBS8802C100.

Chapter6Hardware

Installation

Givesanoverview,function,andinterfacesofZXSDRBS8802C100.

DescribesthesystemstructureofZXSDRBS8802C100,including

hardwarestructureandsoftwarestructure.

DescribestheinstallationprocedureofZXSDRBS8802C100.

Conventions

ZTEdocumentsemploythefollowingtypographicalconventions.

TypefaceMeaning

ItalicsReferencestootherManualsanddocuments.

“Quotes”Linksonscreens.

I

TypefaceMeaning

BoldMenus,menuoptions,functionnames,inputelds,radiobuttonnames,

checkboxes,drop-downlists,dialogboxnames,windownames.

CAPSKeysonthekeyboardandbuttonsonscreensandcompanyname.

Note:Providesadditionalinformationaboutacertaintopic.

Checkpoint:Indicatesthataparticularstepneedstobecheckedbefore

proceedingfurther.

Tip:Indicatesasuggestionorhinttomakethingseasierormore

productiveforthereader.

II

Chapter1

SystemDescription

TableofContents

SystemBackground...................................................................................................1-1

SystemPosition.........................................................................................................1-1

Appearance................................................................................................................1-2

SystemFunctions.......................................................................................................

SystemFeatures........................................................................................................1-5

ExternalInterfaces.....................................................................................................

StandardsComplied...................................................................................................1-7

1.1SystemBackground

Asa3Gmobilecommunicationsystem,CDMA2000isthemainstreamsystemandwidely
usedinthewholeworld.ItcomprisesMSS,BSS,andMS.BSScomprisesBTSandBSC.

1-3

1-6

1.2SystemPosition

WiththeoptimizationandimprovementofCDMAnetwork,alloperatorsfocusmore
attentiononblindspotcoverageandsupportofenterpriseservices.Incurrentandfuture
networkconstruction,thefocusgoestoenterpriseradioservice,servicebalancinginhot
spots,familyradiocommunication,andotherblindelds,andsolutionandoptimization
schemeforbuildingcoverage.

Underthisbackground,ZTElaunchestheZXSDRBS8802C100PicoCellBTSand
networksolution.ZXSDRBS8802C100isanindoormulti-carrierPicoBaseTransceiver
Station,withlowcostandlowpower.ItisbasedonALL-IParchitecture,whichfacilitates
theconstructionofexiblecross-areanetworkmodesandvirtualwirelessnetwork.

ZXSDRBS8802C100ismainlyusedtocoveraparticularindoorareaandprovide
CDMAserviceaccess.Inaddition,ZXSDRBS8802C100canmanageradioresources
inconjunctionwithremoteBSC.

ZXSDRBS8802C100isanindoormulti-carrierPicoBTS.IntheCDMAmobile
communicationnetwork,itsrelationshipwithotherrelatedentitiesisshowninFigure1-1.

1-1

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ZXSDRBS8802C100UserGuide

Figure1-1PositionofZXSDRBS8802C100inCDMAsystem

ZXSDRBS8802C100isinthepositionofwirelessaccess,connectingthemobilestation
andBaseStationController(BSC).Itscorrespondingsysteminterfacesare:

lAbisinterface

ZXSDRBS8802C100communicateswithBSCthroughtheAbisinterface.TheAbis
interfaceisaninteriorinterfaceofthesystem,supportingIPOverEthernetinterface.

lUminterface

UminterfaceistheinterfaceconnectingtheaccessterminalATandZXSDRBS8802
C100,followingIS-2000ReleaseAseriesstandardsandIS-856-Astandard.

1.3Appearance

Figure1-2showsZXSDRBS8802C100appearance.

1-2

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Figure1-2ZXSDRBS8802C100Appearance

Chapter1SystemDescription

1.4SystemFunctions

ZXSDRBS8802C100productisfashionableandgracefulinappearance.Theproduct
coveradoptsengineeringplasticmodulationandthebottomadoptsaluminumalloy
modulation.

ZXSDRBS8802C100isasuper-miniIP-basedBTSdesignedwiththeall-IPtechnology,
applicabletoindoorscenarios.BesidesthebasicfunctionsofBTSsuchasbaseband
modulationanddemodulation,RFsignaltransmissionanddemodulation,radioresources
allocation,callprocessing,powercontrolandsofthandoff,itischaracterizedbyauto
IPcapturing,publicnetworktraversing,simpletransmissionbackpath,severalclock
synchronization,andeasyinstallation,etc.

ZXSDRBS8802C100isbasedonall-IPplatformdesign.Asinglesitecansupportthree
carriersandonepseudopilotmaximally,includingone1xcarrier,twoDOcarriers,and
one1xpseudopilot.ItsupportsthebasebandprocessingofCDMA20001Xand1x
EV-DOservices,andtheradiofrequencycapacityof600mW.Byupgradingsoftware,
itcanupgradefromEV-DORev.AtoEV-DORev.B(includingEV-DORev.BPhaseII).

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ZXSDRBS8802C100UserGuide

Itisfeaturedbysmallsize,lightweight,lowpowerconsumption,easyinstallation,low
matchingrequirementsandmultipleclocks,etc.Itisapplicabletosmall-capacityindoor
scenarios,andcanbemountedonthewall,poleorceiling,etc.

Table1-1showsthemainfunctionsprovidedbyZXSDRBS8802C100.

Table1-1ZXSDRBS8802C100Functions

FunctionCategoryFunctionDescription

Modulation/demodulation

Radioresourcemanagement

BasicBasebandFunction

BasicRFFunction

Interface

Callprocessing

Handoffcontrol

Powercontrol

RGPS,GPStimingandsynchronization

Band:800MHz,1.9GHz

RFmodulation/demodulation

RFreceptionandtransmission

LownoiseamplicationforreceivedRFsignal

AmplicationfortransmittedRFsignal

Abisinterface:supportsIPOverEthernetaccess

Airinterface:supportsIS-2000ReleaseAandIS-856-Astandards

Antennainterface:supportsRFtransmissionandreception

Powerinterface:DC12V~13V

LMTinterface:supportslocalmaintenance

GPSinterface:supportsGPS

RGPSinterface:supportsRGPS

USBinterface:reservedinterfacewhichisnotusedatpresent

RSTinterface:supportshardwarereset

DHCPAutomaticIPobtaining

IPsecSupportingIPsec

SupportingIEEE1588;ZXSDRBS8802C100canbeusedas

IEEE1588

NetworkingStar

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primaryclockserver,whichallocatesclockstootherZXSDR

BS8802C100devicesinthesameEthernet;italsosupportsthe

clocksallocatedbyexternal1588clockserver

1-4

FunctionCategoryFunctionDescription

Chapter1SystemDescription

Supportslocalmaintenance

Supportsremoteupgradeofsoftwareversionfor

FPGA/BOOT/DSP/CPU

Remotereset,poweroff,andlocalhardresetofserviceboards

1.5SystemFeatures

EquipmentMaintenanceand

test

ScenarioIndoorapplications

Electroniclabel

Powerquery:basebandpower,RFpower

RSSIquery

Poweramplicationcontrolandprotection:over-power,

over-temperatureprotection

Faultself-healing

ZXSDRBS8802C100enablesoperatorstoeasilysolveFeaturesthesignalcoveragein
theresidentialarea,basements,andcommercialofcebuildings,etc.Itistherstchoice
ofoperatorstobuildqualitynetwork,andtosolvethehot-spotareacoverageproblems
quicklywithlowcost,especiallythecoverageproblemscannotsolvedbytraditionalbase
stations.

ZXSDRBS8802C100solutionisforward-lookingandhasfullyconsideredtheactual
requirementsofoperators.Ithasthefollowingcharacteristics:

lSmallsize,lightweight

Itis2.7Linsizeandlessthan2kginweight.Onepersoncaneasilytransport,
carryandinstallit.Itcansavethetransportationandlaborcost,andachievefast
deployment.

lFlexibleinstallation

Itcanbemountedonthewall,pole,orceiling.Theinstallationissimpleandtakeslittle
time.Thesitescanbesetupquickly,greatlyreducingtheengineeringconstruction
fee.

lZerofootprint

Sinceithardlyoccupiesanyindoorspace,thereisnoneedtorentequipmentroom
especially.TomounttheZXSDRBS8802C100onthewall,ceilingorpolecangreatly
reducethefeeonrentingandcoordination.

lLowrequirementsonpowersupply

1-5

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ZXSDRBS8802C100UserGuide

Itsupports110Vand220VACpowersupply .ItonlyneedstheACsocket,anddoes
notneedadditionalpowersystem.Itcanbeinstalledinsidethebuildingsoflargeand
middlecities.Itneedsnobatteriesasslavepower.

lGPS(orRGPS)distributedinstallation

ForabuildingwithseveralZXSDRBS8802C100devices,onlyoneGPS/RGPSneeds
tobeinstalled.AdoptthepowersplitteroroneZXSDRBS8802C100deviceasmain
server,whichthendistributesclocktootherZXSDRBS8802C100devices.Itissimple
ininstallationandsavesGPS\RGPS,feedercable,andcosts.

lLow-costIPtransmission

ItadoptsEthernetfortransmission,andcanaccessmultipleaccessdevicessuch
asADSL,CableModem,switch,xPON,andsatellitetransmission.Itabandons
expensiveE1/T1andopticbertransmission,greatlysavingtheinvestmentcoston
transmission.

lLargecapacity

Itsupports1xandDOservicessimultaneously,andcanevolvetoEV-DORev.B
throughsoftwareupgrade.

1.6ExternalInterfaces

lEnvironmentprotection

Ithassmalltransmissionpowerandlowpowerconsumption,thussavingtheelectricity
fee.ItsatisestheRoSHrequirements.

lEasymaintenanceandoperation

Itsupportsremoteorlocalmaintenance.Themaintenancepersonnelcanupgrade
thesoftwareviaUdisk,andcanmaketroubleshootingthroughtheindicatorlighton
thepanel.

Asfortheindoorcoverage,ZXSDRBS8802C100hasmanyadvantagesandcan
complementtheexistingindoorcoveragesolutions.Itcanhelpoperatorstoraiseindoor
coveragequalityandenhancemarketcompetitiveforceonthefoundationoflow-cost
networking.

TheexternalinterfacesofZXSDRBS8802C100arelocatedontherearpanel.Thelayout
isasshowninFigure1-3.

Figure1-3ExternalInterfaces

Table1-2showsadescriptionoftheZXSDRBS8802C100externalinterfaces.

1-6

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1.7StandardsComplied

Chapter1SystemDescription

Table1-2ExternalInterfaces

InterfaceDescription

TX_ANTAntennainterfaceforsend

RX_ANTAntennainterfaceforreceive

USBReservedinterfacewhichisnotusedatpresent

FEEthernetinterfaceforAbisinterface

LMTEthernetinterfaceforLMToperationandmaintenance

GPSGPSinterfaceforGPSantenna

RGPSGPSinterfaceforremoteGPSantenna

12–13VDCDCinput

ZXSDRBS8802C100complieswiththefollowingstandards:

l3GPP2C.S0063-A,cdma2000HighRatePacketDataSupplementalServices
l3GPP2C.S0063-0,cdma2000HighRatePacketDataSupplementalServices
l3GPP2A.S0008-A.InteroperabilitySpecication(IOS)forHighRatePacketData

(HRPD)RadioAccessNetworkInterfacesWithSessionControlintheAccess
Network

l3GPP2A.S0008(TIA/EIAIS-878),IOSSpecicationforHighRatePacketData

(HRPD)RadioAccessNetworkInterfaces.

l3GPP2C.S0024-B(TIA/EIAIS-856-B):cdma2000HighRatePacketDataAir

InterfaceSpecication

l3GPP2C.S0024(TIA/EIAIS-856):CDMA2000HighRatePacketDataAirInterface

Specication,October2002.

l3GPP2C.S0024-A(TIA/EIAIS-856-A):CDMA2000HighRatePacketDataAir

InterfaceSpecication,August2005.

lCDGRF36,MarkovServiceOptionforWidebandSpreadSpectrumCommunications

Systems.

lTIA/EIA/IS-707-A-2DataServiceOptionsforSpreadSpectrumSystemsAddendum

2,2000.

lTIA/EIA/IS-637,ShortMessageServicesforWidebandSpreadSpectrumCellular

Systems,1997.

lTIA/EIA/IS-95,MobileStation-BaseStationCompatibilityStandardforDual-Mode

WidebandSpreadSpectrumCellularSystems.

lTIA/EIA/IS-127,EnhancedVariableRateCodecSpeechServiceOption3for

WidebandSpreadSpectrumDigitalSystems,1996.

lTIA/EIA/IS-658,DataServiceInterworkingFunctionInterfaceforWidebandSpread

SpectrumSystems.

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ZXSDRBS8802C100UserGuide

lTIA/EIA/IS-95-A,MobileStation-BaseStationCompatibilityStandardforDual-Mode

WidebandSpreadSpectrumCellularSystems.

lANSIJ-STD-008,PersonalStation-BaseStationCompatibilityRequirementfor1.8to

2.0GHzCodeDivisionMultipleAccess(CDMA)PersonalCommunicationsSystem,

1996.

lTIA/EIA/TSB-58,AdministrationParameterValueAssignmentsforTIA/EIAWideband

SpreadSpectrumStandards,1995.

l3GPP2C.S0004-Aversion6.0(TIA/EIAIS-2000.4-A-2):SignalingLinkAccess

Control(LAC)SpecicationforCDMA2000SpreadSpectrumSystems-ReleaseA.

lTIA/EIA/IS-725,Over-the-AirServiceProvisioningofMobileStationsinWideband

SpreadSpectrumSystems,1997.

l3GPP2C.S0001-Aversion5.0:IntroductiontoCDMA2000StandardsforSpread

SpectrumSystems-ReleaseA.

lTIA/EIA/TSB-74,Supportfor14.4KbpsDataRateandPCSInteractionforWideband

SpreadSpectrumCellularSystem,1995.

lTIA/EIA/IS-728,Inter-SystemLinkProtocol.
l3GPP2C.S0005-Aversion6.0(TIA/EIAIS-2000.5-A-2):UpperLayer(Layer

3)SignalingStandardforCDMA2000SpreadSpectrumSystems-ReleaseA,
Addendum2.

lTIA/EIA/IS-733,HighRateSpeechServiceOption17forWidebandSpreadSpectrum

CommunicationSystems.

l3GPP2C.S0002-Aversion6.0(TIA/EIAIS-2000.2-A-2):PhysicalLayerStandardfor

CDMA2000SpreadSpectrumSystems-ReleaseA.

l3GPP2C.S0003-Aversion6.0(TIA/EIAIS-2000.3-A-2):MediumAccessControl

(MAC)StandardforCDMA2000SpreadSpectrumSystems-ReleaseA,Addendum

2.

lTIA/EIA/IS-707,DataServiceOptionsforWidebandSpreadSpectrumSystems,

1998.

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Chapter2

SystemStructure

TableofContents

SystemArchitecture...................................................................................................2-1

PRAStructure............................................................................................................

SignalProcessingFlow..............................................................................................2-3

2.1SystemArchitecture

Asahighlyintegratedultra-smallbasestation,ZXSDRBS8802C100integratestheradio
frequencypart,basebandsection,powersection,andcontrolsectiontoachievethe
functionsofthewholebasestation.ZXSDRBS8802C100isfeaturedbyhighintegration
andsmallsize.Theproductisforward-lookingandcompetitive.Thesystemdiagramis
shownasFigure2-1.

2-2

Figure2-1ZXSDRBS8802C100SystemStructure

ZXSDRBS8802C100consistsofPRA,AC-DCpoweradapter,andexternaltransmitting
andreceivingantenna:

lIntegrationunit-PRA

PRAistheunitwithintegratedfunctionssuchascontrol,clock,access,baseband,
andradiofrequency .ItisthecoreunitofZXSDRBS8802C100.

lPoweradapter

ThepowerunitofZXSDRBS8802C100consistsofAC-DCpoweradapterandelectric
cables.

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ZXSDRBS8802C100UserGuide

lExternaltransmittingandreceivingantenna

TheexternaltransmittingandreceivingantennaconsistsoftwoindependentRF
antennae.

2.2PRAStructure

PRA,asthecoreunitofZXSDRBS8802C100,consistsofradiofrequencyunit,baseband
unit,controlunit,clockunit,andpowerunit.Figure2-2showsthePRAstructureofZXSDR
BS8802C100.

Figure2-2PRAStructure

Table2-1describesthefunctionsofPRAmodules.

Table2-1ZXSDRBS8802C100ModulesandTheirFunctions

NameFunction

Radiofrequency

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lProvidesRFsignalmodulationanddemodulation;

lProvidestransmissionRFsignalamplication.

2-2

Chapter2SystemStructure

NameFunction

lProvidesCDMA1XandEV-DOmodulationanddemodulation;

Baseband

lProvidestheinterfacewithRFlinkandintermediatefrequency

processing.

Control

Clock

PowerProvidessystempowerdistribution.

2.3SignalProcessingFlow

TheinternalsignalprocessingowofZXSDRBS8802C100isasbelow:

lForwardlinkprocessing

ThebusinessdatafromBSCentersthebasebandunitthroughthecontrolunit,and
thenforCDMAmodulationandintermediatefrequencyprocessing.Afterthepower
amplicationofTXunitRFlink,itissenttotheantennafortransmission.

lReverselinkprocessing

ThereverseCDMAsignalsfromtheantennaareconvertedtobasebanddigitalsignal
afterbeingprocessedbyRXunit.Aftersignalprocessing,itisprocessedbythecontrol
unitandpackedintoEthernetframe.ItisnallytransmittedtotheBSCviaEthernet.

lProvidesFE\GEEthernetaccess;

lProvidescontrolsoverunitsinsidethesystem.

lReceivesGPSsatellitesignals,providessystemclockandRFreference

clock.

lProvidesvariousclocksusedbythesysteminternally.

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