ZTE R8872AS8500 Users Manual

ZXSDRR8872A

MacroRemoteRadioUnit

ProductDescription

HardwareVersion:HV1.0

ZTECORPORATION
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Postcode:518057
Tel:[phone]
Fax:[phone]
URL:http://support.zte.com.cn
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RevisionHistory

RevisionNo.RevisionDateRevisionReason

R1.42016-12-05Updated“4.3Performance”

R1.32016-09-30Updated“4.3Performance”

R1.22016–02–23V4.14.10.30.P30

Thosetopicshavebeenmodied:

lFunctions

lOperatingEnvironment

lPerformance

lReliability

R1.12015-05-13lUpdated"1.1Functions"and"1.2Features"

lAddedlightningprotectunitin"2.1HardwareArchitecture"

lUpdatedspecicationsin"Chapter4T echnical

Specications",involving"4.1TechnicalSpecication","4.3

PowerSupply","4.4Performance"and"4.5Reliability"

R1.02014-10-21Firstedition

SerialNumber:SJ-201411271 13509-001

PublishingDate:2016-12-05(R1.4)

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Contents

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

Chapter1Overview....................................................................................1-1

1.1Functions...........................................................................................................1-1

1.2Features............................................................................................................1-2

Chapter2SystemArchitecture.................................................................2-1

2.1HardwareArchitecture........................................................................................2-1

2.2SoftwareArchitecture.........................................................................................2-2

Chapter3NetworkingandMaintenance..................................................3-1

3.1Baseband-RFNetworking...................................................................................

3.2OperationandMaintenance................................................................................

Chapter4TechnicalSpecications..........................................................

4.1PhysicalSpecications.......................................................................................4-1

4.2OperatingEnvironment.......................................................................................4-1

4.3PowerSupply.....................................................................................................4-2

4.4Performance......................................................................................................4-2

4.5Reliability...........................................................................................................

4.6ElectromagneticCompatibility.............................................................................

4-1

Glossary..........................................................................................................I

3-1

3-2

4-5

4-6

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AboutThisManual

Purpose

ThismanualprovidesinformationabouttheZXSDRR8872A,includingfunctions,features,
systemarchitecture,operationandmaintenance,andtechnicalspecications.

IntendedAudience

Thismanualisintendedfor:

lNetworkplanningandoptimizationengineers
lFielddesigningengineers

WhatIsinThisManual

Thismanualcontainsthefollowingchapters.

Chapter1,OverviewDescribestheexternalview,functions,andfeaturesoftheZXSDR

R8872A.

Chapter2,System

Architecture

Chapter3,Networking

andMaintenance

Chapter4,Technical

Specications

Describesthehardwarearchitectureandsoftwarearchitectureofthe

ZXSDRR8872A.

Describesthebaseband-RFnetworkingmodesandoperationand

maintenanceoftheZXSDRR8872A.

DescribesthetechnicalspecicationsoftheZXSDRR8872A.

RelatedDocumentation

Thefollowingdocumentationisrelatedtothismanual:

ZXSDRR8872AMacroRemoteRadioUnitHardwareDescription

Conventions

Thismanualusesthefollowingconventions.

Note:providesadditionalinformationaboutatopic.

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Chapter1

Overview

TheZXSDRR8872AisanoutdoorRRU.ItworkswiththeBBUtoformadistributedbase
station,implementingradiotransmissionandradiochannelcontrolinthecoverageareas.

Figure1-1showsanexternalviewoftheZXSDRR8872A.

Figure1-1ExternalView

TableofContents

Functions...................................................................................................................1-1

Features.....................................................................................................................1-2

1.1Functions

TheZXSDRR8872Aprovidesthefollowingfunctions:

lVariousbandwidthcongurationsof1.4/3/5/10/15/20MHz
lFrequencyband:850/900/1800/1900MHz
lSupport2T4Rinoneboxwhichcanoptimizespectrumefciencygreatlyandimprove

networkuplinkperformance

1-1

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ZXSDRR8872AProductDescription

lUplink/downlink64QAMmodulation
lTransmissionpowerreportingfunctionforeachcarrier
lPAoverloadprotectionfunction
lTransmissionchannelswitchfunction
lSoftwarefailurewillnotaffecttherunningofconnectedBBUandothercascaded

RRUs.

Figure1-2showsthepositionoftheZXSDRR8872Ainaradionetwork.

Figure1-2ZXSDRR8872APositioninaRadioNetwork

1.2Features

TheZXSDRR8872Ahasthefollowingfeatures:

lHighperformance

Itprovidesa75MHzinstantaneousbandwidth,whichenablesittoutilizemore
frequencyspectrumresources.Designof2T4Rchannelsimprovesthespectrum
efciency.Itprovidesa2×80Wtransmissionpower,andcanbeappliedinurban
areaswithdensepopulation.

lConvenientnetworkconstruction

ItsupportsGSM/CDMA/L TEormixedtechnologies,whichensurethesmooth
evolutionfromGSM/CDMAtoLTE.

lLowTCO

AdvancedtechnologiesincludingDohertyP A,DPD,andMCPAareappliedtothe
powerampliers.ItalsosupportsdynamicadaptivePApowersupplybasedonoutput
power,whichreducespowerconsumption.

lBuild-inlightningprotectunit

Ithasintegratedlightningprotectunitwhoseprotectionlevelis20kA.

1-2

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2.1HardwareArchitecture

Chapter2

SystemArchitecture

TableofContents

HardwareArchitecture................................................................................................2-1

SoftwareArchitecture.................................................................................................2-2

TheZXSDRR8872Acontainsvehardwaremodules,seeFigure2-1.

Figure2-1HardwareArchitecture

lTransceiver

Itimplementsthetransmitterandreceiverfunctions,andprovidesinterfacesand
control.

lDuplexlters

ItprovidesthefunctionsofRFsignalcombinationandsplittingandltering.

lPA

IttransmitsandampliestwochannelsofRFsignals.Thismoduleconsistsoftwo
PAs.

lPowersupply

Itprovidesthesystempowersupply.

lProtectinginterfaceboard

IntegratedlightningprotectunitfortheAISG,RS485anddrycontacts.

2-1

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ZXSDRR8872AProductDescription

2.2SoftwareArchitecture

TheZXSDRR8872Asoftwarearchitectureisdividedintotwolayers:SDRuniedplatform
softwareandapplicationsoftware,seeFigure2-2.

Figure2-2SoftwareArchitecture

lSDRuniedplatformsoftware

àBSP:Itprovidesbasicfunctionsincludinghardwaredrivers,initialization,alarms,

andmonitoring.ItalsoprovidesinterfacesfordevicestoaccesstheLinux
operatingsystem.

àLinux:Itistheoperatingsystemplatform.

àOSS:Itisthesupportlayerintheentiresoftwarearchitecture.Itprovides

ahardware-independentplatformforsystemsoftwareoperation,and
providessomebasicsoftwarefunctions,includingscheduling,timer,memory
management,inter-modulecommunication,sequencecontrol,monitoring,
alarms,andlogs.

lApplicationsoftware

OAM:Itprovidesfunctionsincludingconguration,alarms,andperformance

measurement.

2-2

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3.1Baseband-RFNetworking

Chapter3

NetworkingandMaintenance

TableofContents

Baseband-RFNetworking..........................................................................................3-1

OperationandMaintenance.......................................................................................3-2

TheZXSDRR8872AsupportsstarandlinenetworkswiththeBBU.TheZXSDRR8872A
andtheBBUareconnectedwithopticalbers.

lStarnetwork

EachRRUhasapoint-to-pointconnectionwiththeBBU,seeFigure3-1.Thisnetwork
topologyisreliablebutoccupiesmoretransmissionresources.Itisapplicableto
densely-populatedareas.

Figure3-1StarNetwork

lLinenetwork

MultipleRRUsareconnectedtoformalink,andthenthelinkisconnectedtothe
BBU,seeFigure3-2.Thisnetworktopologyoccupieslesstransmissionresourcesbut
islessreliablethanthestarnetworktopology.Itisapplicabletosparsely-populated
areas.

Figure3-2LineNetwork

3-1

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ZXSDRR8872AProductDescription

3.2OperationandMaintenance

RemoteMaintenance

RemotemaintenanceisimplementedthroughtheEMS,whichisconnectedtotheBBU
throughtheTCP/IPprotocol,andtheBBUisconnectedtotheZXSDRR8872Athrough
theCPRIinterface,seeFigure3-3.Multiplebasestationscanbemaintainedthroughone
EMS.

Figure3-3RemoteMaintenanceMode

LocalMaintenance

LocalmaintenanceisimplementedthroughtheLMT,whichisinstalledonaPCdirectly
connectedtotheZXSDRR8872AwithanEthernetcable,seeFigure3-4.TheLMTis
usedtomaintainasinglebasestation.

Figure3-4LocalMaintenanceMode

3-2

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Chapter4

TechnicalSpecications

TableofContents

PhysicalSpecications...............................................................................................4-1

OperatingEnvironment...............................................................................................4-1

PowerSupply.............................................................................................................4-2

Performance..............................................................................................................

Reliability....................................................................................................................4-5

ElectromagneticCompatibility....................................................................................

4.1PhysicalSpecications

ForadescriptionofthephysicalspecicationsoftheZXSDRR8872A,refertoTable4-1.

Table4-1PhysicalSpecications

4-2

4-6

4.2OperatingEnvironment

ItemSpecication

Dimensions(H×W×D)415mm×352mm×137mm

Weight23kg

ColorSilvergray

FortheoperatingenvironmentrequirementsfortheZXSDRR8872A,refertoTable4-2.

Table4-2OperatingEnvironmentRequirements

ItemSpecication

Temperature–40℃to+55℃

Relativehumidity5%to100%

Waterproofand

dustprooflevel

Grounding≤5Ω

IP65

Inareaswherethenumberofthunderstormdaysperyearislessthan20,

thegroundingresistancecanbelessthan10Ω.

4-1

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ZXSDRR8872AProductDescription

4.3PowerSupply

ForthepowersupplyrequirementsoftheZXSDRR8872A,refertoTable4-3.

Table4-3PowerSupplyRequirements

ItemSpecication

PowersupplyDC:–48VDC(–37VDCto–60VDC)

Powerconsump-

tion

S1800

S9000

S8500(LTE2x

80W)

S1900(LTE2x

80W)

GSMS8x20W:

Typicalpowerconsumption:275W

Peakpowerconsumption:555W

GSMS2x2x20W+LTE2x40W:

Typicalpowerconsumption:310W

Peakpowerconsumption:555W

GSMS8x20W:

Typicalpowerconsumption:295W

Peakpowerconsumption:575W

LTES2,2x40W/LTEcell:

Typicalpowerconsumption:315W

Peakpowerconsumption:575W

GSMS2x2x20W+LTE2x40W:

Typicalpowerconsumption:365W

Peakpowerconsumption:575W

Typicalpowerconsumption:315W

Peakpowerconsumption:575W

Typicalpowerconsumption:290W

Peakpowerconsumption:560W

Lighteningpro-

tection

20kA

4.4Performance

TheZXSDRR8872Asupportsfourfrequencybandmodels:

lZXSDRR8872AS8500:supportsCDMA,LTE,GSM,andUMTS.
lZXSDRR8872AS9000:supportsGSMandL TE.
lZXSDRR8872AS1800:supportsGSMandL TE.
lZXSDRR8872AS1900:supportsGSM,UMTS,andLTE.

FortheperformancerequirementsoftheZXSDRR8872A,refertoT able4-4,Table4-5,

Table4-6,andT able4-7.

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Table4-4ZXSDRR8872AS8500PerformanceRequirements

ItemSpecication

Chapter4T echnicalSpecications

Operating

frequency

band

TOCoutput

power

BandwidthLTE:1.4MHz,3MHz,5MHz,10MHz,and20MHz

Receiver

Sensitivity

Capacity

850MHz

lTx:869–894MHz

lRx:824–849MHz

2x80W

GSMSingleantenna:–113.5dBm

Dualantennas:–115.5dBm

Fourantennas:N/A

UMTSSingleantenna:–125.8dBm

Dualantennas:–128.5dBm

Fourantennas:N/A

LTESingleantenna:–106.4dBm

Dualantennas:–109.2dBm

Fourantennas:N/A

GSMsingle-mode2x4TRXs

UMTSsingle-mode2x2CSs

UMTS/LTEmulti-modeUMTS2x2CSsandLTE1x10M2T2RCell

GSM/LTEmulti-modeGSM2x4TRXsandLTE1x10M2T2RCell

GSM/UMTSmulti-modeGSM2x4TRXsandUMTS2x2CSs

GSM/UMTS/LTE

multi-mode

Transmis-

sion

CPRIinterface,2x6.144Gbps

GSM2x2TRXs,UMTS2x1CSs,andL TE1x10MIMO

2T2RCell

Table4-5ZXSDRR8872AS9000PerformanceRequirements

ItemSpecication

Operating

frequency

band

TOCoutput

power

BandwidthLTE:1.4MHz,3MHz,5MHz,and10MHz

900MHz

lTx:934–960MHz

lRx:889–915MHz

2x80W

4-3

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ZXSDRR8872AProductDescription

ItemSpecication

Receiving

sensitivity

Capacity

Transmis-

sion

GSMSingleantenna:–113.5dBm

LTESingleantenna:–106.4dBm

GSMsingle-mode2x6TRXs

LTEsingle-mode2x10MHz2T2R/2T4RCells

GSM/LTEmulti-modelGSM2x4TRXs+L TE1x10MHz2T2R/2T4RCell

CPRIinterface,2x6.144Gbps

Table4-6ZXSDRR8872AS1800PerformanceRequirements

ItemSpecication

Operating

frequency

band

1800MHz

lTx:1805–1880MHz

lRx:1710–1785MHz

Dualantennas:–115.5dBm

Fourantennas:N/A

Dualantennas:–109.2dBm

Fourantennas:–112dBm

lGSM2x2TRXs+LTE2x10MHz2T2R/2T4RCells

TOCoutput

power

BandwidthLTE:1.4MHz,3MHz,5MHz,10MHz,and20MHz

Receiving

sensitivity

Capacity

Transmis-

sion

2x80W

GSMSingleantenna:–113.5dBm

Dualantennas:–115.5dBm

Fourantennas:N/A

LTESingleantenna:–106.4dBm

Dualantennas:–109.2dBm

Fourantennas:–112dBm

GSMsingle-mode2x6TRXs

LTEsingle-mode2x20MHz2T2R/2T4RCells

GSM/LTEmulti-modelGSM2x4TRXs+LTE1x20MHz2T2R/2T4RCell

lGSM2x2TRXs+LTE2x20MHz2T2R/2T4RCells

CPRIinterface,2x6.144Gbps

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Table4-7ZXSDRR8872AS1900PerformanceRequirements

ItemSpecication

Chapter4T echnicalSpecications

Operating

frequency

band

TOCoutput

power

BandwidthLTE:1.4MHz,3MHz,5MHz,10MHz,and20MHz

Receiving

sensitivity

Capacity

1900MHz

lTx:1930–-1990MHz

lRx:1850–1910MHz

2x80W

GSMSingleantenna:–113.5dBm

Dualantennas:–115.5dBm

Fourantennas:N/A

UMTSSingleantenna:–125.8dBm

Dualantennas:–128.5dBm

Fourantennas:N/A

LTESingleantenna:–106.4dBm

Dualantennas:–109.2dBm

Fourantennas:N/A

GSMsingle-mode2x4TRXs

UMTSsingle-mode2x2CSs

UMTS/LTEmulti-modeUMTS2x2CSsandLTE1x10MIMO2T2RCell

GSM/LTEmulti-modeGSM2x4TRXsandL TE1x10MIMO2T2RCell

GSM/UMTSmulti-modeGSM2x4TRXsandUMTS2x2CSs

GSM/UMTS/LTE

multi-mode

Transmis-

sion

CPRIinterface,2x6.144Gbps

GSM2x2TRXs,UMTS2x1CSs,andLTE1x10MIMO

2T2RCell

4.5Reliability

ForthereliabilityrequirementsoftheZXSDRR8872A,refertoT able4-8.

Table4-8ReliabilityRequirements

ItemSpecication

MTBFDC:≥438,000hours

MTTR1hour

AvailabilityDC:≥99.999772%

DowntimeDC:≤1.200minutes/year

4-5

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ZXSDRR8872AProductDescription

4.6ElectromagneticCompatibility

FortheelectromagneticcompatibilityrequirementsoftheZXSDRR8872A,refertoT able

4-9.

Table4-9ElectromagneticCompatibilityRequirements

ItemSpecication

ESDimmunityContactdischarge:±6000V

Airdischarge:±8000V

SurgeimmunityDCpowerinterfacecable(grounding):±2000V

4-6

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Glossary

64QAM

-64QuadratureAmplitudeModulation

BBU

-BaseBandUnit

BSP

-BoardSupportPackage

CDMA

-CodeDivisionMultipleAccess

CPRI

-CommonPublicRadioInterface

DPD

-DigitalPre-Distortion

EMS

-ElementManagementSystem

GSM

-GlobalSystemforMobileCommunications

IP

-InternetProtocol

LMT

-LocalMaintenanceTerminal

LTE

-LongTermEvolution

MCPA

-Multi-CarrierPowerAmplier

MTBF

-MeanTimeBetweenFailures

MTTR

-MeanTimeToRecovery

OAM

-OperatingandMaintenance

OSS

-OperationSupportSubsystem

PA

-PowerAmplier

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ZXSDRR8872AProductDescription

PC

-PersonalComputer

RRU

-RemoteRadioUnit

TCO

-T otalCostofOwnership

TCP

-TransmissionControlProtocol

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