ETSI EN 300 908 V6.8.1 (2000-09)

Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 6.8.1 Release 1997)

REN/SMG-020502Q6R6

Digitalni celični telekomunikacijski sistem (faza 2+) – Multipleksiranje in večkratni dostop na radijski poti (GSM 05.02, različica 6.8.1, izdaja 1997)

General Information

• Status: Published
• Publication Date: 28-Sep-2000
• Technical Committee: SMG 2 - Radio
• Current Stage: 12 - Completion
• Due Date: 01-Sep-2000
• Completion Date: 29-Sep-2000
• Ref Project: SIST EN 300 908 V6.8.1:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 6.8.1 Release 1997)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 6.8.1 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 908 Version 6.8.1SIST EN 300 908 V6.8.1:2003en01-december-2003SIST EN 300 908 V6.8.1:2003SLOVENSKI
STANDARD
ETSIEN300908V6.8.1(2000-09)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Multiplexingandmultipleaccessontheradiopath(GSM05.02version6.8.1Release1997)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)2(GSM05.02version6.8.1Release1997)ReferenceREN/SMG-020502Q6R6KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)3(GSM05.02version6.8.1Release1997)ContentsIntellectualPropertyRights.6Foreword.61Scope.71.1References.71.2Abbreviations.72General.83Logicalchannels.83.1General.83.2Trafficchannels.83.2.1General.83.2.2Speechtrafficchannels.93.2.3Circuitswitcheddatatrafficchannels.93.2.4Packetdatatrafficchannels(PDTCH).93.3Controlchannels.93.3.1General.93.3.2Broadcastchannels.93.3.2.1Frequencycorrectionchannel(FCCH).93.3.2.2Synchronizationchannel(SCH).103.3.2.3Broadcastcontrolchannel(BCCH).103.3.2.4PacketBroadcastControlChannel(PBCCH).113.3.3Commoncontroltypechannels.113.3.3.1Commoncontroltypechannels,knownwhencombinedasacommoncontrolchannel(CCCH).113.3.3.2PacketCommoncontrolchannels(PCCCH).113.3.4Dedicatedcontrolchannels.123.3.4.1Circuitswitcheddedicatedcontrolchannels.123.3.4.2Packetdedicatedcontrolchannels.123.3.5CellBroadcastChannel(CBCH).123.4Combinationofchannels.124Thephysicalresource.124.1General.124.2Radiofrequencychannels.134.2.1Cellallocationandmobileallocation.134.2.2Downlinkanduplink.134.3TimeslotsandTDMAframes.134.3.1General.134.3.2Timeslotnumber.134.3.3TDMAframenumber.135Physicalchannels.145.1General.145.2Bursts.145.2.1General.145.2.2Typesofburstandbursttiming.145.2.3Normalburst(NB).145.2.4Frequencycorrectionburst(FB).155.2.5SynchronizationBurst(SB).155.2.6Dummyburst.165.2.7Accessburst(AB).165.2.8Guardperiod.175.3Physicalchannelsandbursts.175.4Radiofrequencychannelsequence.175.5TimeslotandTDMAframesequence.175.6Parametersforchanneldefinitionandassignment.175.6.1General.17SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)4(GSM05.02version6.8.1Release1997)5.6.2Generalparameters.175.6.3Specificparameters.186Mappingoflogicalchannelsontophysicalchannels.186.1General.186.2Mappinginfrequencyoflogicalchannelsontophysicalchannels.186.2.1General.186.2.2Parameters.186.2.3Hoppingsequencegeneration.196.2.4Specificcases.206.2.5Changeinthefrequencyallocationofabasetransceiverstation.206.3Mappingintimeoflogicalchannelsontophysicalchannels.206.3.1Mappingintimeofcircuitswitchedlogicalchannelsontophysicalchannels.206.3.1.1General.206.3.1.2Keytothemappingtableofclause7.206.3.1.3MappingofBCCHdata.216.3.1.4MappingofSIDFrames.216.3.2Mappingintimeofpacketlogicalchannelsontophysicalchannels.226.3.2.1General.226.3.2.2Mappingoftheuplinkchannels.226.3.2.2.1Mappingofuplinkpackettrafficchannel(PDTCH/U)andPACCH/U.226.3.2.2.2MappingofthePacketTimingAdvanceControlChannel(PTCCH/U).226.3.2.2.3MappingoftheuplinkPCCCHi.e.PRACH.236.3.2.3Mappingofthedownlinkchannels.236.3.2.3.1Mappingofthe(PDTCH/D)andPACCH/D.236.3.2.3.2MappingofthePTCCH/D.236.3.2.3.3MappingofthePBCCH.236.3.2.3.4MappingofthePCCCH.236.3.2.4MappingofPBCCHdata.236.4Permittedchannelcombinations.246.4.1Permittedchannelcombinationsontoabasicphysicalchannel.246.4.2Multislotconfigurations.256.4.2.1Multislotconfigurationsforcircuitswitchedconnections.256.4.2.2Multislotconfigurationsforpacketswitchedconnections.256.5Operationofchannelsandchannelcombinations.266.5.1General.266.5.2DeterminationofCCCH_GROUPandPAGING_GROUPforMSinidlemode.276.5.3Determinationofspecificpagingmultiframeandpagingblockindex.276.5.4ShortMessageServiceCellBroadcast(SMSCB).276.5.5Voicegroupandvoicebroadcastcallnotifications.286.5.6DeterminationofPCCCH_GROUPandPAGING_GROUPforMSinGPRSattachedmode.28AnnexA(normative):Phase2mobilesinaPhase1infrastructure.45A.1Scope.45A.2ImplementationoptionsforTCHchannels.45A.2.1C0fillingontheTCH.45A.2.1.1Adummyburstwith(BN61,BN62,BN86)=trainingsequencebitsofnormalbursts.45A.2.1.2Adummyburstwiththe"C0fillingtrainingsequence.45A.2.1.3Adummyburstwith(BN61,BN62,BN86)mappedfromtheTSCbitsofnormalburstsaccordingtothetable;below.45A.2.1.4PartialSIDinformation.45A.2.2Halfburstfilling.45A.2.2.1PartialSIDinformationfromanyassociatedSIDframe;or.46A.2.2.2Themixedbitsofthedummybursts(encryptedornotencrypted).46A.2.3DummyburstStealingflag.46A.2.4HalfburstFillingStealingflag.46A.2.5Allowedcombinations.46SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)5(GSM05.02version6.8.1Release1997)A.3IdleChannels.46AnnexB(normative):Multislotcapability.47B.1MSclassesformultislotcapability.47B.2Constraintsimposedbytheserviceselected.49B.3NetworkrequirementsforsupportingMSmultislotclasses.49AnnexC(informative):Changecontrolhistory.52History.53SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)6(GSM05.02version6.8.1Release1997)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSpecialMobileGroup(SMG).Thepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannelsofthedigitalmobilecellularandpersonalcommunicationsystemsoperatinginthe900MHzand1800MHzband(GSM900andDCS1800).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenberepublishedbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version6.x.ywhere:6indicatesrelease1997ofGSMPhase2+.xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:25August2000DateoflatestannouncementofthisEN(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)7(GSM05.02version6.8.1Release1997)1ScopeThepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannels.Itincludesadescriptionofthelogicalchannelsandthedefinitionoffrequencyhopping,TDMAframes,timeslotsandbursts.1.1ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1997document,referencestoGSMdocumentsareforRelease1997versions(version6.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[3]GSM04.03:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interfaceChannelstructuresandaccesscapabilities".[4]GSM04.06:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interfaceDataLink(DL)layerspecification".[5]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".[6]GSM05.03:"Digitalcellulartelecommunicationssystem(Phase2+);Channelcoding".[7]GSM05.04:"Digitalcellulartelecommunicationssystem;Modulation".[8]GSM05.05:"Digitalcellulartelecommunicationssystem(Phase2+);Radiotransmissionandreception".[9]GSM05.08:"Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemlinkcontrol".[10]GSM05.10:"Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemsynchronization".[11]GSM03.64:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);OveralldescriptionoftheGPRSRadioInterface;Stage2".[12]GSM04.60:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);MobileStation(MS)-BaseStationSystem(BSSinterface;RadioLinkControl(RLC)andMediumAccessControl(MAC)LayerSpecification".1.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04[1].SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)8(GSM05.02version6.8.1Release1997)2GeneralTheradiosubsystemisrequiredtosupportacertainnumberoflogicalchannelsthatcanbeseparatedintotwocategoriesasdefinedinGSM04.03:i)thetrafficchannels(TCH's);ii)thecontrolchannels.Moreinformationisgivenabouttheselogicalchannelsinclause3whichalsodefinesanumberofspecialchannelsusedbytheradiosub-system.Clause4ofthepresentdocumentdescribesthephysicalresourceavailabletotheradiosub-system,clause5definesphysicalchannelsbasedonthatresourceandclause6specifieshowthelogicalchannelsshallbemappedontophysicalchannels.Figure1depictsthisprocess.3Logicalchannels3.1GeneralThissubclausedescribesthelogicalchannelsthataresupportedbytheradiosubsystem.3.2Trafficchannels3.2.1GeneralTrafficchannels(TCH's)areintendedtocarryeitherencodedspeechoruserdataincircuitswitchedmode.Twogeneralformsoftrafficchannelaredefined:i)fullratetrafficchannel(TCH/F).Thischannelcarriesinformationatagrossrateof22,8kbit/s;ii)halfratetrafficchannel(TCH/H).Thischannelcarriesinformationatagrossrateof11,4kbit/s.Packetdatatrafficchannels(PDTCH's)areintendedtocarryuserdatainpacketswitchedmode.Forthepurposeofthepresentdocument,anyreferencetotrafficchanneldoesnotapplytoPDTCHunlessexplicitlystated.Alltrafficchannelsarebi-directionalunlessotherwisestated.Unidirectionaldownlinkfullratechannels,TCH/FD,aredefinedasthedownlinkpartofthecorrespondingTCH/F.MultiplefullratechannelscanbeallocatedtothesameMS.Thisisreferredtoasmultislotconfigurations,whichisdefinedinsubclause6.4.2.1.MultiplepacketdatatrafficchannelscanbeallocatedtothesameMS.Thisisreferredtoasmultislotpacketconfigurations,asdefinedinsubclause6.4.2.2.Thespecifictrafficchannelsavailableinthecategoriesofspeechanduserdataaredefinedinthesubclausesfollowing.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)9(GSM05.02version6.8.1Release1997)3.2.2SpeechtrafficchannelsThefollowingtrafficchannelsaredefinedtocarryencodedspeech:i)fullratetrafficchannelforspeech(TCH/FS);ii)halfratetrafficchannelforspeech(TCH/HS).3.2.3CircuitswitcheddatatrafficchannelsThefollowingtrafficchannelsaredefinedtocarryuserdata:i)fullratetrafficchannelfor9,6kbit/suserdata(TCH/F9.6);ii)fullratetrafficchannelfor4,8kbit/suserdata(TCH/F4.8);iii)halfratetrafficchannelfor4,8kbit/suserdata(TCH/H4.8);iv)halfratetrafficchannelfor≤2,4kbit/suserdata(TCH/H2.4);v)fullratetrafficchannelfor≤2,4kbit/suserdata(TCH/F2.4);vi)fullratetrafficchannelfor14,4kbit/suserdata(TCH/F14.4).3.2.4Packetdatatrafficchannels(PDTCH)APDTCHcorrespondstotheresourceallocatedtoasingleMSononephysicalchannelforuserdatatransmission.Duetothedynamicmultiplexingontothesamephysicalchannelofdifferentlogicalchannels(seesubclause6.3.2),aPDTCHcarriesinformationataninstantaneousbitraterangingfrom0to22,8kbit/s.Allpacketdatatrafficchannelsareuni-directional,eitheruplink(PDTCH/U),foramobileoriginatedpackettransferordownlink(PDTCH/D)foramobileterminatedpackettransfer.3.3Controlchannels3.3.1GeneralControlchannelsareintendedtocarrysignallingorsynchronizationdata.Threecategoriesofcontrolchannelaredefined:broadcast,commonanddedicated.Specificchannelswithinthesecategoriesaredefinedinthesubclausesfollowing.3.3.2Broadcastchannels3.3.2.1Frequencycorrectionchannel(FCCH)Thefrequencycorrectionchannelcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)10(GSM05.02version6.8.1Release1997)3.3.2.2Synchronizationchannel(SCH)Thesynchronizationchannelcarriesinformationforframesynchronizationofthemobilestationandidentificationofabasetransceiverstation.Itisrequiredonlyfortheoperationoftheradiosub-system.Specificallythesynchronizationchannelshallcontaintwoencodedparameters:a)Basetransceiverstationidentitycode(BSIC):6bits(beforechannelcoding)consistsof3bitsofPLMNcolourcodewithrange0to7and3bitsofBScolourcodewithrange0to7asdefinedinGSM03.03.b)ReducedTDMAframenumber(RFN):19bits(beforechannelcoding)=T1(11bits)range0to2047=FNdiv(26x51)T2(5bits)range0to25=FNmod26T3'(3bits)range0to4=(T3-1)div10whereT3(6bits)range0to50=FNmod51andFN=TDMAframenumberasdefinedinsubclause4.3.3.GSM04.06andGSM04.08specifytheprecisebitordering,GSM05.03thechannelcodingoftheaboveparametersandGSM05.10defineshowtheTDMAframenumbercanbecalculatedfromT1,T2,andT3'.3.3.2.3Broadcastcontrolchannel(BCCH)Thebroadcastcontrolchannelbroadcastsgeneralinformationonabasetransceiverstationperbasetransceiverstationbasis.OfthemanyparameterscontainedintheBCCH,theuseofthefollowingparameters,asdefinedinGSM04.08arereferredtoinsubclause6.5:a)CCCH_CONFwhichindicatestheorganizationofthecommoncontrolchannels:Fromthisparameter,thenumberofcommoncontrolchannels(BS_CC_CHANS)andwhetherornotCCCHorSDCCHarecombined(BS_CCCH_SDCCH_COMB=trueorfalse)arederivedasfollows:CCCH_CONFBS_CC_CHANSBS_CCCH_SDCCH_COMB0001false0011true0102false1003false1104falseb)BS_AG_BLKS_RESwhichindicatesthenumberofblocksoneachcommoncontrolchannelreservedforaccessgrantmessages:3bits(beforechannelcoding)range0to7.c)BS_PA_MFRMSwhichindicatesthenumberof51-multiframesbetweentransmissionofpagingmessagestomobilesofthesamepaginggroup:3bits(beforechannelcoding)range2to9.d)supportofGPRSTheBCCHshallindicatewhetherornotpacketswitchedtrafficissupported.IfpacketswitchedtrafficissupportedandifthePBCCHexists,thentheBCCHshallbroadcastthepositionofthepacketdatachannel(PDCH),asdefinedinsubclause6.3.2.1,carryingthePBCCH.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)11(GSM05.02version6.8.1Release1997)3.3.2.4PacketBroadcastControlChannel(PBCCH)ThePBCCHbroadcastsparametersusedbytheMStoaccessthenetworkforpackettransmissionoperation.InadditiontothoseparametersthePBCCHreproducestheinformationtransmittedontheBCCHtoallowcircuitswitchedoperation,suchthataMSinGPRSattachedmodemonitorsthePBCCHonly,ifitexists.TheexistenceofthePBCCHinthecellisindicatedontheBCCH.IntheabsenceofPBCCH,theBCCHshallbeusedtobroadcastinformationforpacketoperation.OfthemanyparameterscontainedinthePBCCH,theuseofthefollowingparameters,asdefinedinGSM04.60arereferredtoinsubclauses6.5and6.3.2:a)BS_PBCCH_BLKS(1,.,4)indicatesthenumberofblocksallocatedtothePBCCHinthemultiframe.ThepositionofthePBCCHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.b)BS_PCC_CHANSindicatesthenumberofphysicalchannelscarryingPCCCHsincludingthephysicalchannelcarryingthePBCCHc)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachPDCHcarryingPCCCHpermultiframewhereneitherpacketpagingnorPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforPAGCH,PNCH,PDTCHandPACCH.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytothePRACHchannelonanyPDCHcarryingPCCCH.ThepositionofthePRACHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.3.3.3Commoncontroltypechannels3.3.3.1Commoncontroltypechannels,knownwhencombinedasacommoncontrolchannel(CCCH)i)Pagingchannel(PCH):Downlinkonly,usedtopagemobiles.ii)Randomaccesschannel(RACH):Uplinkonly,usedtorequestallocationofaSDCCH.iii)Accessgrantchannel(AGCH):Downlinkonly,usedtoallocateaSDCCHordirectlyaTCH.iv)Notificationchannel(NCH):Downlinkonly,usedtonotifymobilestationsofvoicegroupandvoicebroadcastcalls.3.3.3.2PacketCommoncontrolchannels(PCCCH)i)PacketPagingchannel(PPCH):Downlinkonly,usedtopageMS.ii)PacketRandomaccesschannel(PRACH):Uplinkonly,usedtorequestallocationofoneorseveralPDTCHs(foruplinkordownlinkdirection).iii)PacketAccessgrantchannel(PAGCH):Downlinkonly,usedtoallocateoneorseveralPDTCH.iv)PacketNotificationchannel(PNCH):Downlinkonly,usedtonotifyMSofPTM-Mcall.IfaPCCCHisnotallocated,theinformationforpacketswitchedoperationistransmittedontheCCCH.IfaPCCCHisallocated,itmaytransmitinformationforcircuitswitchedoperation.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)12(GSM05.02version6.8.1Release1997)3.3.4Dedicatedcontrolchannels3.3.4.1Circuitswitcheddedicatedcontrolchannelsi)Slow,TCH/Fassociated,controlchannel(SACCH/TF).ii)Fast,TCH/Fassociated,controlchannel(FACCH/F).iii)Slow,TCH/Hassociated,controlchannel(SACCH/TH).iv)Fast,TCH/Hassociated,controlchannel(FACCH/H).v)Standalonededicatedcontrolchannel(SDCCH/8).vi)Slow,SDCCH/8associated,controlchannel(SACCH/C8)vii)Standalonededicatedcontrolchannel,combinedwithCCCH(SDCCH/4).viii)Slow,SDCCH/4associated,controlchannel(SACCH/C4).ix)slow,TCH/Fassociated,controlchannelformultislotconfigurations(SACCH/M).Allassociatedcontrolchannelshavethesamedirection(bi-directionalorunidirectional)asthechannelstheyareassociatedto.TheunidirectionalSACCH/MDisdefinedasthedownlinkpartofSACCH/M.3.3.4.2Packetdedicatedcontrolchannelsi)ThePacketAssociatedControlchannel(PACCH):ThePACCHisbi-directional.FordescriptionpurposesPACCH/UisusedfortheuplinkandPACCH/Dforthedownlink.ii)PacketTimingadvancecontrolchanneluplink(PTCCH/U):UsedtotransmitrandomaccessburststoallowestimationofthetimingadvanceforoneMSinpackettransfermode.iii)PacketTimingadvancecontrolchanneldownlink(PTCCH/D):UsedtotransmittimingadvanceupdatesforseveralMS.OnePTCCH/DispairedwithseveralPTCCH/U's.3.3.5CellBroadcastChannel(CBCH)TheCBCH,downlinkonly,isusedtocarrytheshortmessageservicecellbroadcast(SMSCB).TheCBCHusesthesamephysicalchannelastheSDCCH.3.4CombinationofchannelsOnlycertaincombinationsofchannelsareallowedasdefinedinGSM04.03.Subclause6.4liststhecombinationsinrelationtobasicphysicalchannels.4Thephysicalresource4.1GeneralThephysicalresourceavailabletotheradiosub-systemisanallocationofpartoftheradiospectrum.Thisresourceispartitionedbothinfrequencyandtime.Frequencyispartitionedbyradiofrequencychannels(RFCHs)dividedintobandsasdefinedinGSM05.05.TimeispartitionedbytimeslotsandTDMAframesasdefinedinsubclause4.3ofthepresentdocument.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)13(GSM05.02version6.8.1Release1997)4.2Radiofrequencychannels4.2.1CellallocationandmobileallocationGSM05.05definesradiofrequencychannels(RFCHs),andallocatesnumberstoalltheradiofrequencychannelsavailabletothesystem.Eachcellisallocatedasubsetofthesechannels,definedasthecellallocation(CA).OneradiofrequencychannelofthecellallocationshallbeusedtocarrysynchronizationinformationandtheBCCH,thisshallbeknownasBCCHcarrier.Thesubsetofthecellallocation,allocatedtoaparticularmobile,shallbeknownasthemobileallocation(MA).4.2.2DownlinkanduplinkThedownlinkcomprisesradiofrequencychannelsusedinthebasetransceiverstationtoMobileStationdirection.Theuplinkcomprisesradiofrequencychannelsusedinthemobilestationtobasetransceiverstationdirection.4.3TimeslotsandTDMAframes4.3.1GeneralAtimeslotshallhaveadurationof3/5200seconds(≈577µs).EighttimeslotsshallformaTDMAframe(≈4,62msinduration).AtthebasetransceiverstationtheTDMAframesonalloftheradiofrequencychannelsinthedownlinkshallbealigned.Thesameshallapplytotheuplink(seeGSM05.10).AtthebasetransceiverstationthestartofaTDMAframeontheuplinkisdelayedbythefixedperiodof3timeslotsfromthestartoftheTDMAframeonthedownlink(seefigure2).Atthemobilestationthisdelaywillbevariabletoallowadjustmentforsignalpropagationdelay.TheprocessofadjustingthisadvanceisknownasadaptiveframealignmentandisdetailedinGSM05.10.ThestaggeringofTDMAframesusedinthedownlinkanduplinkisinordertoallowthesametimeslotnumbertobeusedinthedownlinkanduplinkwhilstavoidingtherequirementforthemobilestationtotransmitandreceivesimultaneously.Theperiodincludestimeforadaptiveframealignment,transceivertuningandreceive/transmitswitching(seefigure4).4.3.2TimeslotnumberThetimeslotswithinaTDMAframeshallbenumberedfrom0to7andaparticulartimeslotshallbereferredtobyitstimeslotnumber(TN).4.3.3TDMAframenumberTDMAframesshallbenumberedbyaframenumber(FN).Theframenumbershallbecyclicandshallhavearangeof0toFN_MAXwhereFN_MAX=(26x51x2048)-1=2715647asdefinedinGSM05.10.TheframenumbershallbeincrementedattheendofeachTDMAframe.ThecompletecycleofTDMAframenumbersfrom0toFN_MAXisdefinedasahyperframe.Ahyperframeconsistsof2048superframeswhereasuperframeisdefinedas26x51TDMAframes.A26-multiframe,comprising26TDMAframes,isusedtosupporttrafficandassociatedcontrolchannelsanda51-multiframe,comprising51TDMAframes,isusedtosupportbroadcast,commoncontrolandstandalonededicatedcontrol(andtheirassociatedcontrol)channels.Henceasuperframemaybeconsideredas51traffic/associatedcontrolmultiframesor26broadcast/commoncontrolmultiframes.A52-multiframe,comprisingtwo26-multiframes,isusedtosupportpacketdatatrafficandcontrolchannels.TheneedforahyperframeofasubstantiallylongerperiodthanasuperframearisesfromtherequirementsoftheencryptionprocesswhichusesFNasaninputparameter.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)14(GSM05.02version6.8.1Release1997)5Physicalchannels5.1GeneralAphysicalchannelusesacombinationoffrequencyandtimedivisionmultiplexingandisdefinedasasequenceofradiofrequencychannelsandtimeslots.Thecompletedefinitionofaparticularphysicalchannelconsistsofadescriptioninthefrequencydomain,andadescriptioninthetimedomain.Thedescriptioninthefrequencydomainisaddressedinsubclause5.4,thedescriptioninthetimedomainisaddressedinsubclause5.5.5.2Bursts5.2.1GeneralAburstisaperiodofR.Fcarrierwhichismodulatedbyadatastream.Aburstthereforerepresentsthephysicalcontentofatimeslot.5.2.2TypesofburstandbursttimingAtimeslotisdividedinto156,25bitperiods.Aparticularbitperiodwithinatimeslotisreferencedbyabitnumber(BN),withthefirstbitperiodbeingnumbered0,andthelast(1/4)bitperiodbeingnumbered156.Inthesubclausesfollowingthetransmissiontimingofaburstwithinatimeslotisdefinedintermsofbitnumber.Thebitwiththelowestbitnumberistransmittedfirst.Differenttypesofburstexistinthesystem.Onecharacteristicofaburstisitsusefulduration.Thepresentdocument,inthesubclausesfollowing,definesfourfullburstsof147bitsusefulduration,andoneshortburstof87bitsusefulduration.Theusefulpartofaburstisdefinedasbeginningfromhalfwaythroughbitnumber0.ThedefinitionoftheusefulpartofaburstneedstobeconsideredinconjunctionwiththerequirementsplacedonthephaseandamplitudecharacteristicsofaburstasspecifiedinGSM05.04and05.05.Theperiodbetweenburstsappearinginsuccessivetimeslotsistermedtheguardperiod.Subclause5.2.8detailsconstraintswhichrelatetotheguardperiod.5.2.3Normalburst(NB)BitNumber(BN)LengthoffieldContentsoffieldDefinition0-23tailbits(below)3-6058encryptedbits(e0.e57)05.0361-8626trainingsequencebits(below)87-14458encryptedbits(e58.e115)05.03145-1473tailbits(below)(148-1568,25guardperiod(bits)subclause5.2.8)-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows:(BN0,BN1,BN2)=(0,0,0)and(BN145,BN146,BN147)=(0,0,0)-wherethe"trainingsequencebits"aredefinedasmodulatingbitswithstatesasgiveninthefollowingtableaccordingtothetrainingsequencecode,TSC.Forbroadcastandcommoncontrolchannels,theTSCmustbeequaltotheBCC,asdefinedinGSM03.03andasdescribedinthistechnicalspecificationinsubclause3.3.2.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)15(GSM05.02version6.8.1Release1997)TrainingTrainingsequencebitsSequence(BN61,BN62.BN86)Code(TSC)0(0,0,1,0,0,1,0,1,1,1,0,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1)1(0,0,1,0,1,1,0,1,1,1,0,1,1,1,1,0,0,0,1,0,1,1,0,1,1,1)2(0,1,0,0,0,0,1,1,1,0,1,1,1,0,1,0,0,1,0,0,0,0,1,1,1,0)3(0,1,0,0,0,1,1,1,1,0,1,1,0,1,0,0,0,1,0,0,0,1,1,1,1,0)4(0,0,0,1,1,0,1,0,1,1,1,0,0,1,0,0,0,0,0,1,1,0,1,0,1,1)5(0,1,0,0,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,0,1,1,1,0,1,0)6(1,0,1,0,0,1,1,1,1,1,0,1,1,0,0,0,1,0,1,0,0,1,1,1,1,1)7(1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0)Undercertaincircumstancesonlyhalftheencryptedbitspresentinanormalburstwillcontaincompleteinformation.FordownlinkDTXoperationonTCH-FSandTCH-HS,whenatrafficframe(asdefinedinGSM06.31)isscheduledfortransmissionandoneofitsadjacenttrafficframesisnotscheduledfortransmission,theotherhalfoftheencryptedbitsinthenormalburstsassociatedwiththescheduledtrafficframeshallcontainpartialSIDinformationfromanyassociatedSIDframe,withtheappropriatestealingflagsBN60orBN87setto0.Inothercasesthebinarystateoftheremainingbitsisnotspecified.5.2.4Frequencycorrectionburst(FB)BitNumberlengthContentsDefinition(BN)offieldoffield0-23tailbits(below)3-144142fixedbits(below)145-1473tailbits(below)(148-1568,25guardperiod(bits)subclause5.2.8)-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows:(BN0,BN1,BN2)=(0,0,0)and(BN145,BN146,BN147)=(0,0,0)-wherethe"fixedbits"aredefinedasmodulatingbitswithstatesasfollows:(BN3,BN4.BN144)=(0,0.0)NOTE:Thisburstisequivalenttounmodulatedcarrierwitha+1625/24kHzfrequencyoffset,abovethenominalcarrierfrequency.5.2.5SynchronizationBurst(SB)BitNumberLengthContentsDefinition(BN)offieldoffield0-23tailbits(below)3-4139encryptedbits(e0.e38)05.0342-10564extendedtrainingsequencebits(below)106-14439encryptedbits(e39.e77)05.03145-1473tailbits(below)(148-1568,25guardperiod(bits)subclause5.2.8)-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows:(BN0,BN1,BN2)=(0,0,0)and(BN145,BN146,BN147)=(0,0,0)SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)16(GSM05.02version6.8.1Release1997)-wherethe"extendedtrainingsequencebits"aredefinedasmodulatingbitswithstatesasfollows:(BN42,BN43.BN105)=(1,0,1,1,1,0,0,1,0,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,1,1,1,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,1,0,1,1,1,0,1,1,0,0,0,0,1,1,0,1,1)5.2.6DummyburstBitNumberLengthContentsDefinition(BN)offieldoffield0-23tailbits(below)3-144142mixedbits(below)145-1473tailbits(below)(148-1568,25guardperiod(bits)subclause5.2.8)-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows:(BN0,BN1,BN2)=(0,0,0)and(BN145,BN146,BN147)=(0,0,0)-wherethe"mixedbits"aredefinedasmodulatingbitswithstatesasfollows:(BN3,BN4.BN144)=(1,1,1,1,1,0,1,1,0,1,1,1,0,1,1,0,0,0,0,0,1,0,1,0,0,1,0,0,1,1,1,0,0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,1,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,10,1,1,1,0,1,0,0,1,0,1,0,0,0,1,1,0,0,1,1,0,0,1,1,1,0,0,1,1,1,1,0,1,0,0,1,1,1,1,1,0,0,0,1,0,0,1,0,1,1,1,1,1,0,1,0,1,0)5.2.7Accessburst(AB)BitNumberLengthContentsDefinition(BN)offieldoffield0-78extendedtailbits(below)8-4841synch.sequencebits(below)49-8436encryptedbits(e0.e35)05.0385-873tailbits(below)(88-15668,25extendedguardperiod(bits)subclause5.2.8)-wherethe"extendedtailbits"aredefinedasmodulatingbitswiththefollowingstates:(BN0,BN1,BN2.BN7)=(0,0,1,1,1,0,1,0)-wherethe"tailbits"aredefinedasmodulatingbitswiththefollowingstates:(BN85,BN86,BN87)=(0,0,0)-wherethe"sync.sequencebits"aredefinedasmodulatingbitswiththefollowingstates:(BN8,BN9.BN48)=(0,1,0,0,1,0,1,1,0,1,1,1,1,1,1,1,1,0,0,1,1,0,0,1,1,0,1,0,1,0,1,0,0,0,1,1,1,1,0,0,0)SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)17(GSM05.02version6.8.1Release1997)5.2.8GuardperiodTheguardperiodisprovidedbecauseitisrequiredfortheMSsthattransmissionbeattenuatedfortheperiodbetweenburstswiththenecessaryrampupanddownoccurringduringtheguardperiodsasdefinedinGSM05.05.Abasetransceiverstationisnotrequiredtohaveacapabilitytorampdownandupbetweenadjacentbursts,butisrequiredtohaveacapabilitytorampdownandupfornon-usedtime-slots,asdefinedinGSM05.05.Inanycasewheretheamplitudeoftransmissionisrampedupanddown,thenbyapplyinganappropriatemodulationbitstreaminterferencetootherRFchannelscanbeminimized.5.3PhysicalchannelsandburstsThedescriptionofaphysicalchannelwillbemadeintermsoftimeslotsandTDMAframesandnotintermsofbursts.Thisisbecausethereisnotaonetoonemappingbetweenaparticularphysicalchannel,andtheuseofaparticularburst.5.4RadiofrequencychannelsequenceTheradiofrequencychannelsequenceisdeterminedbyafunctionthat,inagivencell,withagivensetofgeneralparameters,(seesubclause5.6.2),withagiventimeslotnumber(TN),agivenmobileradiofrequencychannelallocation(MA)andagivenmobileallocationindexoffset(MAIO),mapstheTDMAframenumber(FN)toaradiofrequencychannel.Inagivencellthereistherefore,foraphysicalchannelassignedtoaparticularmobile,auniquecorrespondencebetweenradiofrequencychannelandTDMAframenumber.Thedetailedhoppinggenerationalgorithmisgiveninsubclause6.2.5.5TimeslotandTDMAframesequenceAgivenphysicalchannelshallalwaysusethesametimeslotnumberineveryTDMAframe.Thereforeatimeslotsequenceisdefinedby:i)atimeslotnumber(TN);andii)aTDMAframenumbersequence.ThedetaileddefinitionsofTDMAframenumbersequencesaregiveninclause7.ThephysicalchannelswheretheTDMAframenumbersequenceis0,1.FN_MAX(whereFN_MAXisdefinedinsubclause4.3.3)arecalled"basicphysicalchannels".5.6Parametersforchanneldefinitionandassignment5.6.1GeneralThissubclausedescribesthesetofparametersnecessarytodescribefullythemappingofanylogicalchannelontoaphysicalchannel.Theseparametersmaybedividedintogeneralparameters,thatarecharacteristicofaparticularbasetransceiverstation,andspecificparameters,thatarecharacteristicofagivenphysicalchannel.5.6.2GeneralparametersTheseare:i)thesetofradiofrequencychannelsusedinthecell(CA),togetherwiththeidentificationoftheBCCHcarrier;ii)theTDMAframenumber(FN),whichcanbederivedfromthereducedTDMAframenumber(RFN)whichisintheformT1,T2,T3',seesubclause3.3.2.SIST EN 300 908 V6.8.1:2003

ETSIETSIEN300908V6.8.1(2000-09)18(GSM05.02version6.8.1Release1997)Theseparametersarebroadcast(orderivedfromparametersbroadcast)intheBCCHandSCH.5.6.3SpecificparametersTheseparametersdefineaparticularphysicalchannelinabasetransceiverstation.Theyare:o)thetrainingsequenceCode(TSC);i)thetimeslotnumber(TN);ii)themobileradiofrequencychannelallocation(MA);iii)themobileallocationindexoffset(MAIO);iv)thehoppingsequencenumber(HSN);v)thetypeoflogicalchannel;vi)thesub-channelnumber(SCN).Thelasttwoparametersallowthedeterminationoftheframesequence.6Mappingoflogicalchannelsontophysicalchannels6.1GeneralThedetailedmappingoflogicalchannelsontophysicalchannelsisdefinedinthefollowingsections.Subclause6.2definesthemappingfromTDMAframenumber(FN)toradiofrequencychannel(RFCH).Subclause6.3definesthemappingofthephysicalchannelontoTDMAframenumber.Subclause6.4liststhepermittedchannelcombinationsandsubclause6.5definestheoperationofchannelsandchannelcombinations.6.2Mappinginfrequencyoflogicalchannelsontophysicalchannels6.2.1GeneralTheparametersusedinthefunctionwhichmapsTDMAframenumberontoradiofrequencychannelaredefinedinsubclause6.2.2.Thedefinitionoftheactualmappingfunction,orasitistermed,hoppingsequencegenerationisgivenins
...