SpreadingAndmodulationWCDMA扩频与调制Rel7协议.docx

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SpreadingAndmodulationWCDMA扩频与调制Rel7协议

3GPPTS25.213V7.7.0（2009-12）

TechnicalSpecification

3rdGenerationPartnershipProject;

TechnicalSpecificationGroupRadioAccessNetwork;

Spreadingandmodulation（FDD）

（Release7）

Thepresentdocumenthasbeendevelopedwithinthe3rdGenerationPartnershipProject（3GPPTM）andmaybefurtherelaboratedforthepurposesof3GPP.

Thepresentdocumenthasnotbeensubjecttoanyapprovalprocessbythe3GPPOrganisationalPartnersandshallnotbeimplemented.

ThisSpecificationisprovidedforfuturedevelopmentworkwithin3GPPonly.TheOrganisationalPartnersacceptnoliabilityforanyuseofthisSpecification.

Specificationsandreportsforimplementationofthe3GPPTMsystemshouldbeobtainedviathe3GPPOrganisationalPartners'PublicationsOffices.

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Keywords

UMTS,radio,modulation,layer 1

3GPP

Postaladdress

3GPPsupportofficeaddress

650RoutedesLucioles-SophiaAntipolis

Valbonne-FRANCE

Tel.:

+33492944200Fax:

+33493654716

Internet

http:

//www.3gpp.org

CopyrightNotification

Nopartmaybereproducedexceptasauthorizedbywrittenpermission.

Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.

©2009,3GPPOrganizationalPartners（ARIB,ATIS,CCSA,ETSI,TTA,TTC）.

Allrightsreserved.

UMTS™isaTradeMarkofETSIregisteredforthebenefitofitsmembers

3GPP™isaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners

LTE™isaTradeMarkofETSIcurrentlybeingregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners

GSM®andtheGSMlogoareregisteredandownedbytheGSMAssociation

Contents

Foreword5

1Scope6

2References6

3Symbolsandabbreviations6

3.1Symbols6

3.2Abbreviations6

4Uplinkspreadingandmodulation7

4.1Overview7

4.2Spreading7

4.2.1Dedicatedphysicalchannels7

4.2.1.1DPCCH/DPDCH9

4.2.1.2HS-DPCCH10

4.2.1.3E-DPDCH/E-DPCCH11

4.2.2PRACH17

4.2.2.1PRACHpreamblepart17

4.2.2.2PRACHmessagepart17

4.2.3Void18

4.3Codegenerationandallocation18

4.3.1Channelisationcodes18

4.3.1.1Codedefinition18

4.3.1.2Codeallocationfordedicatedphysicalchannels19

4.3.1.2.1CodeallocationforDPCCH/DPDCH19

4.3.1.2.2CodeallocationforHS-DPCCH19

4.3.1.2.3CodeallocationforE-DPCCH/E-DPDCH19

4.3.1.3CodeallocationforPRACHmessagepart20

4.3.1.4Void20

4.3.1.5Void20

4.3.2Scramblingcodes20

4.3.2.1General20

4.3.2.2Longscramblingsequence20

4.3.2.3Shortscramblingsequence21

4.3.2.4Dedicatedphysicalchannelsscramblingcode22

4.3.2.5PRACHmessagepartscramblingcode22

4.3.2.6Void23

4.3.2.7Void23

4.3.3PRACHpreamblecodes23

4.3.3.1Preamblecodeconstruction23

4.3.3.2Preamblescramblingcode23

4.3.3.3Preamblesignature23

4.3.4Void24

4.4Modulation24

4.4.1Modulatingchiprate24

4.4.2Modulation24

5Downlinkspreadingandmodulation25

5.1Spreading25

5.1.1Modulationmapper25

5.1.1.1QPSK25

5.1.1.216QAM26

5.1.1.364QAM26

5.1.2Channelisation27

5.1.3IQcombining27

5.1.4Scrambling27

5.1.5Channelcombining27

5.2Codegenerationandallocation28

5.2.1Channelisationcodes28

5.2.2Scramblingcode29

5.2.3Synchronisationcodes30

5.2.3.1Codegeneration30

5.2.3.2CodeallocationofSSC31

5.3Modulation33

5.3.1Modulatingchiprate33

5.3.2Modulation33

AnnexA（informative）:

GeneralisedHierarchicalGolaySequences34

A.1Alternativegeneration34

AnnexB（informative）:

Changehistory35

Foreword

ThisTechnicalSpecification（TS）hasbeenproducedbythe3rdGenerationPartnershipProject（3GPP）.

ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithintheTSGandmaychangefollowingformalTSGapproval.ShouldtheTSGmodifythecontentsofthepresentdocument,itwillbere-releasedbytheTSGwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:

Versionx.y.z

where:

xthefirstdigit:

1presentedtoTSGforinformation;

2presentedtoTSGforapproval;

3orgreaterindicatesTSGapproveddocumentunderchangecontrol.

ytheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.

zthethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthedocument.

1Scope

ThepresentdocumentdescribesspreadingandmodulationforUTRAPhysicalLayerFDDmode.

2References

Thefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.

∙Referencesareeitherspecific（identifiedbydateofpublication,editionnumber,versionnumber,etc.）ornonspecific.

∙Foraspecificreference,subsequentrevisionsdonotapply.

∙Foranon-specificreference,thelatestversionapplies.Inthecaseofareferencetoa3GPPdocument（includingaGSMdocument）,anon-specificreferenceimplicitlyreferstothelatestversionofthatdocumentinthesameReleaseasthepresentdocument.

[1]3GPP TS 25.201:

"Physicallayer-generaldescription".

[2]3GPP TS 25.211:

"Physicalchannelsandmappingoftransportchannelsontophysicalchannels（FDD）."

[3]3GPP TS 25.101:

"UERadiotransmissionandReception（FDD）".

[4]3GPP TS 25.104:

"UTRA（BS）FDD;RadiotransmissionandReception".

[5]3GPPTS 25.308:

"UTRAHighSpeedDownlinkPacketAccess（HSDPA）;Overalldescription".

[6]3GPPTS 25.214:

"Physicallayerprocedures（FDD）".

[7]3GPPTS 25.212:

"Multiplexingandchannelcoding（FDD）".

3Symbolsandabbreviations

3.1Symbols

Forthepurposesofthepresentdocument,thefollowingsymbolsapply:

Cch,SF,n:

n:

thchannelisationcodewithspreadingfactorSF

Cpre,n,s:

PRACHpreamblecodeforn:

thpreamblescramblingcodeandsignatures

Csig,s:

PRACHsignaturecodeforsignatures

Sdpch,n:

n:

thDPCCH/DPDCHuplinkscramblingcode

Sr-pre,n:

n:

thPRACHpreamblescramblingcode

Sr-msg,n:

n:

thPRACHmessagescramblingcode

Sdl,n:

DLscramblingcode

Cpsc:

PSCcode

Cssc,n:

n:

thSSCcode

3.2Abbreviations

Forthepurposesofthepresentdocument,thefollowingabbreviationsapply:

16QAM16QuadratureAmplitudeModulation

64QAM64QuadratureAmplitudeModulation

AICHAcquisitionIndicatorChannel

BCHBroadcastControlChannel

CCPCHCommonControlPhysicalChannel

CPICHCommonPilotChannel

DCHDedicatedChannel

DPCHDedicatedPhysicalChannel

DPCCHDedicatedPhysicalControlChannel

DPDCHDedicatedPhysicalDataChannel

E-AGCHE-DCHAbsoluteGrantChannel

E-DPCCHE-DCHDedicatedPhysicalControlChannel

E-DPDCHE-DCHDedicatedPhysicalDataChannel

E-HICHE-DCHHybridARQIndicatorChannel

E-RGCHE-DCHRelativeGrantChannel

FDDFrequencyDivisionDuplex

F-DPCHFractionalDedicatedPhysicalChannel

HS-DPCCHDedicatedPhysicalControlChannel（uplink）forHS-DSCH

HS-DSCHHighSpeedDownlinkSharedChannel

HS-PDSCHHighSpeedPhysicalDownlinkSharedChannel

HS-SCCHSharedControlPhysicalChannelforHS-DSCH

MBSFNMBMSoveraSingleFrequencyNetwork

McpsMegaChipPerSecond

MICHMBMSIndicationChannel

OVSFOrthogonalVariableSpreadingFactor（codes）

PICHPageIndicationChannel

PRACHPhysicalRandomAccessChannel

PSCPrimarySynchronisationCode

RACHRandomAccessChannel

SCHSynchronisationChannel

SSCSecondarySynchronisationCode

SFSpreadingFactor

UEUserEquipment

4Uplinkspreadingandmodulation

4.1Overview

Spreadingisappliedtothephysicalchannels.Itconsistsoftwooperations.Thefirstisthechannelisationoperation,whichtransformseverydatasymbolintoanumberofchips,thusincreasingthebandwidthofthesignal.ThenumberofchipsperdatasymboliscalledtheSpreadingFactor（SF）.Thesecondoperationisthescramblingoperation,whereascramblingcodeisappliedtothespreadsignal.

Withthechannelisation,datasymbolsonso-calledI-andQ-branchesareindependentlymultipliedwithanOVSFcode.Withthescramblingoperation,theresultantsignalsontheI-andQ-branchesarefurthermultipliedbycomplex-valuedscramblingcode,whereIandQdenoterealandimaginaryparts,respectively.

4.2Spreading

4.2.1Dedicatedphysicalchannels

ThepossiblecombinationsofthemaximumnumberofrespectivededicatedphysicalchannelswhichmaybeconfiguredsimultaneouslyforaUEinadditiontotheDPCCHarespecifiedintable0.TheactualUEcapabilitymaybelowerthanthevaluesspecifiedintable0;theactualdedicatedphysicalchannelconfigurationisindicatedbyhigherlayersignalling.TheactualnumberofconfiguredDPDCHs,denotedNmaxdpdch,isequaltothelargestnumberofDPDCHsfromalltheTFCsintheTFCS.Nmaxdpdchisnotchangedbyframe-by-frameTFCIchangeortemporaryTFCrestrictions.

Table0:

Maximumnumberofsimultaneously-configureduplinkdedicatedchannels

DPDCH

HS-DPCCH

E-DPDCH

E-DPCCH

Case1

6

1

-

-

Case2

1

1

2

1

Case3

-

1

4

1

Figure1illustratestheprincipleofthespreadingofuplinkdedicatedphysicalchannels（DPCCH,DPDCHs,HS-DPCCH,E-DPCCH,E-DPDCHs）.

IncaseofBPSKmodulation,thebinaryinputsequencesofallphysicalchannelsareconvertedtorealvaluedsequences,i.e.thebinaryvalue"0"ismappedtotherealvalue+1,thebinaryvalue"1"ismappedtotherealvalue–1,andthevalue"DTX"（HS-DPCCHonly）ismappedtotherealvalue0.

Incaseof4PAMmodulation,thebinaryinputsequencesofallE-DPDCHphysicalchannelsareconvertedtorealvaluedsequences,i.e.asetoftwoconsecutivebinarysymbolsnk,nk+1（withkmod2=0）ineachbinarysequenceisconvertedtoarealvaluedsequencefollowingthemappingdescribedinTable0A.

Table0A:

MappingofE-DPDCH

with4PAMmodulation

nk,nk+1

Mappedrealvalue

00

0.4472

01

1.3416

10

-0.4472