ETSI EN 300 737 V7.2.1 (2000-09)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); In-band control of remote transcoders and rate adaptors for full rate traffic channels (GSM 08.60 version 7.2.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 737 Version 7.2.1SIST EN 300 737 V7.2.1:2003en01-december-2003SIST EN 300 737 V7.2.1:2003SLOVENSKI
STANDARD
ETSIEN300737V7.2.1(2000-09)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);In-bandcontrolofremotetranscodersandrateadaptorsforfullratetrafficchannels(GSM08.60version7.2.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)2(GSM08.60version7.2.1Release1998)ReferenceREN/SMG-020860Q7R1KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°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:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)3(GSM08.60version7.2.1Release1998)ContentsIntellectualPropertyRights.5Foreword.51Scope.61.1References.61.2Abbreviations.82GeneralApproach.83FrameStructure.113.1FramesforSpeechServices.113.1.1FramesforFullRateandEnhancedFullRateSpeech.113.1.2FramesforAdaptiveMulti-RateSpeech.123.2O&MFrames.133.3DataFrames.143.3.1DataFrame(forSynchronization).143.3.2Extendeddataframe(E-TRAU:datatransport).153.4IdleSpeechFrames.163.5Coding.163.5.1CodingofFramesforSpeechServices.173.5.1.1CodingofFramesforFullRateandEnhancedFullRateSpeech.173.5.1.1.1CodingofControlbits(C-bits).173.5.1.1.2CodingofDataBits(D-bits).183.5.1.1.3TimeAlignmentBits(T1…T4).183.5.1.2CodingofFramesforAdaptiveMulti-RateSpeech.193.5.1.2.1CodingofControlbits(C-bits).193.5.1.2.2CodingofDatabits(D-bits).213.5.1.2.3TimeAlignmentBits(T1…T4).243.5.2CodingofO&MFrames.253.5.3CodingofDataFrames.253.5.4CodingofExtendedDataFrames.253.5.5CodingofIdleSpeechFrames.263.6OrderofBitTransmission.264Procedures.264.1RemoteControlofTranscodersandRateAdaptors.264.2ResourceAllocation.274.3ResourceRelease.274.4InCallModification.284.5TransferofIdleFrames,HandlingofMissingData.284.5.1InFullRatedatacase.284.5.2InFullRatespeechcase.284.5.3InEnhancedFullRatespeechcase.284.5.4InAdaptiveMulti-Ratespeechcase.284.6ProceduresforSpeechServices.294.6.1TimeAlignmentofSpeechServiceFrames.294.6.1.1InitialTimeAlignmentState.294.6.1.2TheStaticTimeAlignmentState.304.6.1.2.1PhaseAlignmentofCodec_Mode_IndicationforAMR.304.6.1.3InitiationatResourceAllocation.324.6.1.4TimeAlignmentDuringHandover.324.6.1.4.1BSSExternalHandover.324.6.1.4.2BSSInternalHandover.324.6.2ProceduresforDiscontinuousTransmission(DTX).324.6.2.1DTXproceduresintheuplinkdirection.334.6.2.2DTXproceduresinthedownlinkdirection.334.7ProceduresforDataFrames.334.7.19,6and4,8kbit/schannelcoding.33SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)4(GSM08.60version7.2.1Release1998)4.7.1.1TheRAAFunction.344.7.1.2TheRA1/RA1'Function.344.7.1.3TheRA2Function.344.7.1.4Proceduresfor8kbit/sintermediaterateadaptionrate.344.7.1.5Proceduresfor16kbit/sintermediaterateadaptionrate.354.7.1.6SupportofNon-TransparentBearerApplications.354.7.214,5kbit/schannelcoding.354.7.2.1TheRAA'Function.354.7.2.2TheRA1'/RAA'Function.354.7.2.3TheRA2Function.354.8FrameSynchronization.364.8.1SearchforFrameSynchronization.364.8.2FrameSynchronizationAfterPerformingDownlinkTimingAdjustments.364.8.3FrameSynchronizationMonitoringandRecovery.364.9Correction/detectionofbiterrorsontheterrestrialcircuits.374.9.1ErrorDetectionontheControlBits.374.9.1.1GeneralProcedure.374.9.1.2FramesforSpeechServices.374.9.2Handlingofframesreceivedwitherrors.384.9.2.1IncaseofFullRatespeech.384.9.2.2IncaseofEnhancedFullRateandAdaptiveMulti-Ratespeech.384.10ProceduresforOperation&Maintenance.384.10.1TransferofO&MInformationBetweentheTRAUandtheBSC.384.10.2ProceduresintheTRAU.394.10.3ProceduresintheBSC.394.10.3.1UseofO&MFrames.394.10.4ProceduresintheBTS.39AnnexA(informative):ChangeRequestHistory.40History.41SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)5(GSM08.60version7.2.1Release1998)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).ThepresentdocumentspecifiestheinbandcontrolofremotetranscodersandrateadaptorsforFullRatespeech,EnhancedFullRatespeech,AdaptiveMulti-RatespeechandfullratedatawithintheDigitalcellulartelecommunicationssystem(Phase2+).ThespecificationfromwhichthepresentdocumenthasbeenderivedwasoriginallybasedonCEPTdocumentation,hencethepresentationofthepresentdocumentmaynotbeentirelyinaccordancewiththeETSI/PNERules.ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:12May2000DateoflatestannouncementofthisEN(doa):31August2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):29February2001DateofwithdrawalofanyconflictingNationalStandard(dow):29February2001SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)6(GSM08.60version7.2.1Release1998)1ScopeWhen64kbit/strafficchannelsareusedontheAbisinterface,thespeechshallbecodedaccordingtoCCITTRecommendationG.711andthedatarateadaptationshallbeasspecifiedinGSM04.21andGSM08.20.Inthecasewhere16kbit/strafficchannelsareusedforfullratespeech,enhancedfullratespeech,AdaptiveMulti-Ratespeechorfullratedataservice,thenthepresentdocumentshallapplyforframestructureandforcontrolofremotetranscodersandadditionalrateadaptors.ForAdaptiveMulti-Ratespeechthepresentdocumentspecifiesthe16kBit/ssubmultiplexing,bothforthefullandthehalfratetrafficchannels(TCH/AFSandTCH/AHS).Thespecificationfor8kBit/ssubmultiplexingisgiveninGSM08.61,bothforthefullandthehalfratetrafficchannels(TCH/AFSandTCH/AHS).TheuseandgeneralaspectsoftheAbisinterfacearegiveninGSM08.51.NOTE:ThepresentdocumentshouldbeconsideredtogetherwiththeGSM06seriesofspecifications,GSM04.21(RateAdaptationontheMS-BSSInterface)andGSM08.20(RateAdaptationontheBS/MSCInterface).1.1ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM04.06:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interface;DataLink(DL)layerspecification".[3]GSM04.21:"Digitalcellulartelecommunicationssystem(Phase2+);RateadaptionontheMobileStation-BaseStationSystem(MS-BSS)interface".[4]GSM06.01:"Digitalcellulartelecommunicationssystem(Phase2+);Fullratespeech;Processingfunctions".[5]GSM06.10:"Digitalcellulartelecommunicationssystem(Phase2+);Fullratespeech;Transcoding".[6]GSM06.11:"Digitalcellulartelecommunicationssystem(Phase2+);Fullratespeech;Substitutionandmutingoflostframesforfullratespeechchannels".[7]GSM06.12:"Digitalcellulartelecommunicationssystem(Phase2+);Fullratespeech;Comfortnoiseaspectforfullratespeechtrafficchannels".[8]GSM06.31:"Digitalcellulartelecommunicationssystem(Phase2+);Fullratespeech;DiscontinuousTransmission(DTX)forfullratespeechtrafficchannels".[9]GSM06.32:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceActivityDetector(VAD)".SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)7(GSM08.60version7.2.1Release1998)[10]GSM08.20:"Digitalcellulartelecommunicationssystem(Phase2+);RateadaptionontheBaseStationSystem-Mobile-servicesSwitchingCentre(BSS-MSC)interface".[11]GSM08.51:"Digitalcellulartelecommunicationssystem(Phase2+);BaseStationController-BaseTransceiverStation(BSC-BTS)interface;Generalaspects".[12]GSM08.54:"Digitalcellulartelecommunicationssystem(Phase2+);BaseStationController-BaseTransceiverStation(BSC-BTS)interface;Layer1structureofphysicalcircuits".[13]GSM08.58:"Digitalcellulartelecommunicationssystem(Phase2+);BaseStationController-BaseTransceiverStation(BSC-BTS)interface;Layer3specification".[14]GSM12.21:"Digitalcellulartelecommunicationssystem(Phase2+);NetworkManagement(NM)proceduresandmessageontheA-bisinterface".[15]CCITTRecommendationG.711:"Pulsecodemodulation(PCM)ofvoicefrequencies".[16]CCITTRecommendationI.460:"Multiplexing,rateadaptionandsupportofexistinginterfaces".[17]CCITTRecommendationV.110:"Supportofdataterminalequipments(DTEs)withV-Seriesinterfacesbyanintegratedservicesdigitalnetwork".[18]GSM06.51:"Digitalcellulartelecommunicationssystem(Phase2+);EnhancedFullratespeechprocessingfunctions".[19]GSM06.60:"Digitalcellulartelecommunicationssystem(Phase2+);EnhancedFullratespeechtranscoding".[20]GSM06.61:"Digitalcellulartelecommunicationssystem(Phase2+);SubstitutionandmutingoflostframesforEnhancedFullratespeechchannels".[21]GSM06.62:"Digitalcellulartelecommunicationssystem(Phase2+);ComfortnoiseaspectforEnhancedFullratespeechtrafficchannels".[22]GSM06.81:"Digitalcellulartelecommunicationssystem(Phase2+);DiscontinuousTransmission(DTX)forEnhancedFullratespeechtrafficchannel".[23]GSM06.82:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceActivityDetection(VAD)".[24]GSM06.71:"Digitalcellulartelecommunicationssystem;AdaptiveMulti-Ratespeechprocessingfunctions,GeneralDescription".[25]GSM06.90:"Digitalcellulartelecommunicationssystem;AdaptiveMulti-Ratespeechtranscoding".[26]GSM06.91:"Digitalcellulartelecommunicationssystem;SubstitutionandmutingoflostframesforAdaptiveMulti-Ratespeechtrafficchannels".[27]GSM06.92:"Digitalcellulartelecommunicationssystem;ComfortnoiseaspectforAdaptiveMulti-Ratespeechtrafficchannels".[28]GSM06.93:"Digitalcellulartelecommunicationssystem;DiscontinuousTransmission(DTX)forAdaptiveMulti-Ratespeechtrafficchannels".[29]GSM06.94:"Digitalcellulartelecommunicationssystem;VoiceActivityDetection(VAD)forAdaptiveMulti-Ratespeechtrafficchannels".[30]GSM05.09:"Digitalcellulartelecommunicationssystem;LinkAdaptation".[31]GSM08.61:Digitalcellulartelecommunicationssystem;Inbandcontrolofremotetranscodersandrateadaptorsforhalfratetrafficchannels".[32]GSM08.62:"Digitalcellulartelecommunicationssystem;InbandTandemFreeOperation(TFO)ofSpeechCodecs".SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)8(GSM08.60version7.2.1Release1998)1.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.Additionally:AMRAdaptiveMulti-RateCMCCodec_Mode_CommandCMICodec_Mode_IndicationCMRCodec_Mode_RequestOnsetSpeechOnsetFrameClassificationPABPhaseAlignmentBitPACPhaseAlignmentCommandRATSCCHRobustAMRTrafficSynchronisedControlCHannelRIFRequestorIndicationFlagTACTimeAlignmentCommandTAETimeAlignmentExtensionTFOTandemFreeOperationTFOETFOEnableUFEUplinkFrameError2GeneralApproachWhenthetranscoders/rateadaptorsarepositionedremotetotheBTS,theinformationbetweentheChannelCodecUnit(CCU)andtheremoteTranscoder/RateAdaptorUnit(TRAU)istransferredinframeswithafixedlengthof320bits(20ms).Inthepresentdocument,theseframesaredenoted"TRAUframes".Withintheseframes,boththespeech/dataandtheTRAUassociatedcontrolsignalsaretransferred.TheAbisinterfaceshouldbethesameifthetranscoderispositioned1)attheMSCsiteoftheBSSorifitispositioned2)attheBSCsiteoftheBSS.Incase1),theBSCshouldbeconsideredastransparentfor16kbit/schannels.Incaseof4,8and9,6kbit/schannelcodingwhendataisadaptedtothe320bitframes,aconversionfunctionisrequiredinadditiontotheconversion/rateadaptionspecifiedinGSM08.20.ThisfunctionconstitutestheRAA.Incaseof14,5kbit/schannelcoding,noRAArateadaptionisrequiredbecauseV.110framingisnotused.TheTRAUisconsideredapartoftheBSC,andthesignallingbetweentheBSCandtheTRAU(e.g.detectionofcallrelease,handoverandtransferofO&Minformation)maybeperformedbyusingBSCinternalsignals.ThesignallingbetweentheCCUandtheTRAU,usingTRAUframesasspecifiedinthepresentdocument,ismandatorywhentheAbisinterfaceisapplied.NOTE:Ifstandard64kbit/sswitchingisusedintheBSC,multiplexingaccordingtoCCITTRecommendationI.460shouldapplyatbothsidesoftheswitch.Infigure2.1,apossibleconfigurationoftheTRAUandtheCCUisshown.ThefunctionsinsidetheTRAUare:-"RemoteTranscoderandRateAdaptorControlFunction"(RTRACF);-"RemoteSpeechHandlerFunction"(RSHF);-TheRAAfunctionincaseof4,8and9,6kbit/schannelcoding;-TheRAA'functionincaseof14,5kbit/schannelcoding;-TheRA2function;-Thetranscoderfunction.-OptionallytheTFOfunctions(seeGSM08.62).SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)9(GSM08.60version7.2.1Release1998)ThefunctionsinsidetheCCUare:-"TranscoderandRateAdaptorControlFunction"(TRACF);-"SpeechHandlerFunction"(SHF);-TheRAAfunctionincaseof4,8kbit/sand9,6kbit/schannelcoding;-TheRA1/RA1'functionincaseof4,8kbit/sand9,6kbit/schannelcoding;-TheRA1'/RAA'functionincaseof14,5kbit/schannelcoding;-Thechannelcodecfunction;-IfAMRissupported,theLinkAdaptation(seeGSM05.09).ThepresentdocumentwillnotdescribetheproceduresinsidetheTRAUandtheCCU.Thelayoutinfigure2.1isonlyintendedasareferencemodel.SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)10(GSM08.60version7.2.1Release1998)#$%&!*+,,-&,#.&!)+/&!0NOTE1:ThisrecommendationassumestheDTXhandlerfunctiontobeapartoftheTranscoderFunction.NOTE2:Thisfigureappliesonlyfor4,8kbit/sand9,6kbit/schannelcoding.Figure2.1:FunctionalentitiesforhandlingofremotecontrolofremotetranscodersandrateadaptorsSIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)11(GSM08.60version7.2.1Release1998)3FrameStructure3.1FramesforSpeechServices3.1.1FramesforFullRateandEnhancedFullRateSpeechBitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13C14C1541D1D2D3D4D5D6D75D8D9D10D11D12D13D14D1561D16D17D18D19D20D21D227D23D24D25D26D27D28D29D3081D31D32D33D34D35D36D379D38D39D40D41D42D43D44D45101D46D47D48D49D50D51D5211D53D54D55D56D57D58D59D60121D61D62D63D64D65D66D6713D68D69D70D71D72D73D74D75141D76D77D78D79D80D81D8215D83D84D85D86D87D88D89D90161D91D92D93D94D95D96D9717D98D99D100D101D102D103D104D105181D106D107D108D109D110D111D11219D113D114D115D116D117D118D119D120201D121D122D123D124D125D126D12721D128D129D130D131D132D133D134D135221D136D137D138D139D140D141D14223D143D144D145D146D147D148D149D150241D151D152D153D154D155D156D15725D158D159D160D161D162D163D164D165261D166D167D168D169D170D171D17227D173D174D175D176D177D178D179D180281D181D182D183D184D185D186D18729D188D189D190D191D192D193D194D195301D196D197D198D199D200D201D20231D203D204D205D206D207D208D209D210321D211D212D213D214D215D216D21733D218D219D220D221D222D223D224D225341D226D227D228D229D230D231D23235D233D234D235D236D237D238D239D240361D241D242D243D244D245D246D24737D248D249D250D251D252D253D254D255381D256D257D258D259D260C16C1739C18C19C20C21T1T2T3T4SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)12(GSM08.60version7.2.1Release1998)3.1.2FramesforAdaptiveMulti-RateSpeechBitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13C14C1541C16C17C18C19C20C21C225C23C24C25D1D2D3D4D561D6D7D8D9D10D11D127D13D14D15D16D17D18D19D2081D21D22D23D24D25D26D279D28D29D30D31D32D33D34D35101D36D37D38D39D40D41D4211D43D44D45D46D47D48D49D50121D52D52D53D54D55D56D5713D58D59D60D61D62D63D64D65141D66D67D68D69D70D71D7215D73D74D75D76D77D78D79D80161D81D82D83D84D85D86D8717D88D89D90D91D92D93D94D95181D96D97D98D99D100D101D10219D103D104D105D106D107D108D109D110201D111D112D113D114D115D116D11721D118D119D120D121D122D123D124D125221D126D127D128D129D130D131D13223D133D134D135D136D137D138D139D140241D141D142D143D144D145D146D14725D148D149D150D151D152D153D154D155261D156D157D158D159D160D161D16227D163D164D165D166D167D168D169D170281D171D172D173D174D175D176D17729D178D179D180D181D182D183D184D185301D186D187D188D189D190D191D19231D193D194D195D196D197D198D199D200321D201D202D203D204D205D206D20733D208D209D210D211D212D213D214D215341D216D217D218D219D220D221D22235D223D224D225D226D227D228D229D230361D231D232D233D234D235D236D23737D238D239D240D241D242D243D244D245381D246D247D248D249D250D251D25239D253D254D255D256T1T2T3T4SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)13(GSM08.60version7.2.1Release1998)3.2O&MFramesBitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13C14C1541D1D2D3D4D5D6D75D8D9D10D11D12D13D14D1561D16D17D18D19D20D21D227D23D24D25D26D27D28D29D3081D31D32D33D34D35D36D379D38D39D40D41D42D43D44D45101D46D47D48D49D50D51D5211D53D54D55D56D57D58D59D60121D61D62D63D64D65D66D6713D68D69D70D71D72D73D74D75141D76D77D78D79D80D81D8215D83D84D85D86D87D88D89D90161D91D92D93D94D95D96D9717D98D99D100D101D102D103D104D105181D106D107D108D109D110D111D11219D113D114D115D116D117D118D119D120201D121D122D123D124D125D126D12721D128D129D130D131D132D133D134D135221D136D137D138D139D140D141D14223D143D144D145D146D147D148D149D150241D151D152D153D154D155D156D15725D158D159D160D161D162D163D164D165261D166D167D168D169D170D171D17227D173D174D175D176D177D178D179D180281D181D182D183D184D185D186D18729D188D189D190D191D192D193D194D195301D196D197D198D199D200D201D20231D203D204D205D206D207D208D209D210321D211D212D213D214D215D216D21733D218D219D220D221D222D223D224D225341D226D227D228D229D230D231D23235D233D234D235D236D237D238D239D240361D241D242D243D244D245D246D24737D248D249D250D251D252D253D254D255381D256D257D258D259D260D261D26239D263D264S1S2S3S4S5S6SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)14(GSM08.60version7.2.1Release1998)3.3DataFrames3.3.1DataFrame(forSynchronization)BitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13C14C1541.51.61.71Dataframeposition18163bits.91(72bitsincludingbitposition1)1011111211311411511611Dataframeposition2171181191201211221231241251Dataframeposition3261271281291301311321331Dataframeposition4341351361371381391SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)15(GSM08.60version7.2.1Release1998)3.3.2Extendeddataframe(E-TRAU:datatransport)BitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13M1M24D1D2.567Datablockof288databitsandM1,M2.89101112131415161718192021222324252627282930313233343536373839.D287D288SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)16(GSM08.60version7.2.1Release1998)3.4IdleSpeechFramesBitnumberOctetno.1234567800000000010000000021C1C2C3C4C5C6C73C8C9C10C11C12C13C14C15411111111511111111611111111711111111811111111911111111101111111111111111111211111111131111111114111111111511111111161111111117111111111811111111191111111120111111112111111111221111111123111111112411111111251111111126111111112711111111281111111129111111113011111111311111111132111111113311111111341111111135111111113611111111371111111138111111C16C1739C18C19C20C21T1T2T3T43.5CodingInthefollowingsubclauses,thecodingoftheframesisdescribed.Anyspareornotusedcontrolbitsshouldbecodedbinary"1".Forallframetypestheoctet0,1andthefirstbitofoctets2,4,6,8,.38areusedasframesync.SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)17(GSM08.60version7.2.1Release1998)3.5.1CodingofFramesforSpeechServices3.5.1.1CodingofFramesforFullRateandEnhancedFullRateSpeech3.5.1.1.1CodingofControlbits(C-bits)DescriptionUplinkDownlinkC1C2C3C4C5C1C2C3C4C5FrametypeFRSpeech:00010.Speech:11100(BitsC1-C5).EFRSpeech:11010Speech:11010TimeBinarynumberindicatingtheBinarynumberindicatingAlignmentrequiredtimingadjustmenttothetimingadjustmentmade.(BitsC6-C11)bemadeinstepsof250/500µs.ThefollowingvaluesapplyforthecodingC6C7.C11000000Nochangeinframetiming000001Delayframe1x500µs000010Delayframe2x500µs.100111Delayframe39x500µs101000Notused.111101Notused111110Delayframe1x250µs111111Advanceframe250µsFrameindicators.ThedefinitionC12:BFIC12-C15:Spareandcodingoftheseindicators0:BFI=0aregiveninGSM06.31.1:BFI=1IFFR.SpeechC13C14:SIDELSEBitsC12-C1600:SID=0C12:UFE01:SID=10:UFE=0baduplinkframe10:SID=21:UFE=1goodup-linkframeDownlinkUplinkFrameErrorC15:TAF(UFE)C120:TAF=0(seesubclause4.8.3)1:TAF=1C13-C15:spareC16:SpareC16:SP0:SP=01:SP=1DTXindicatorC17:DTXdC17:Spare0:DTXnotapplied1:DTXappliedBitsC18-C21SpareSpareSIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)18(GSM08.60version7.2.1Release1998)3.5.1.1.2CodingofDataBits(D-bits)ForFullRateSpeech:BitsD1.D260:Speechblocktransferredinthesameorderasoutputfromthetranscoder(seeGSM06.10).ForEnhancedFullRateSpeech:Thespeechblockissubdividedinfivesubsets.Theorderwithinagivensubsetisthesameasoutputfromthetranscoder(seeETS300726,GSM06.60).Threeparitybitsareaddedattheendofeachsub-set.Theseparitybitsareaddedtothebitsofthesubset,accordingtoadegenerate(shortened)cycliccodeusingthegeneratorpolynomial:g(D)=D3+D+1Theencodingofthecycliccodeisperformedinasystematicformwhichmeansthat,inGF(2),thepolynomial:d(m)Dn+d(m+1)Dn-1+.+d(m+n-3)D3+p(0)D2+p(1)D+p(2)wherep(0),p(1),p(2)aretheparitybits,whendividedbyg(D),yieldsaremainderequalto:1+D+D2ForeveryCRC,thetransmissionorderisp(0)firstfollowedbyp(1)andp(2)successively.BitD1:spare(binary"1").BitsD2.D39:IndexesoftheLSFsubmatrices.BitsD40.D42:CRCoverbitsD1toD22,D25toD27andD29.BitsD43.D95:Indexesoftheparametersoffirstsub-frame.BitsD96.D98:CRCoverbitsD43toD52,D91andD92.BitsD99.D148:Indexesoftheparametersofsecondsub-frame.BitsD149.D151:CRCoverbitsD99toD103,D105,D144andD145.BitsD152.D204:Indexesoftheparametersofthirdsub-frame.BitsD205.D207:CRCoverbitsD152toD161,D200andD201.BitsD208.D257:Indexesoftheparametersoffourthsub-frame.BitsD258.D260:CRCoverbitsD208toD212,D214,D253andD254.3.5.1.1.3TimeAlignmentBits(T1…T4)BitsT1.T4:Bitspositionedattheendofthedownlinkframes.Ifthetimingoftheframeistobeadvanced250µs,these4bitsarenottransferredinordertoreducetheframelengthaccordingly.Whentransferredthebitsaresettobinary"1".SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)19(GSM08.60version7.2.1Release1998)3.5.1.2CodingofFramesforAdaptiveMulti-RateSpeech3.5.1.2.1CodingofControlbits(C-bits)ControlBitsDescriptionUplinkDescriptionDownlinkC1.C5Frame_Type(Codec_Type)Frame_Type(Codec_Type)C6.C11TimeAlignmentCommand(TAC)orPhaseAlignmentControl(PAC)orTFOInformationorHandoverInformationTimeAlignmentCommand(TAC)orPhaseAlignmentControl(PAC)orTFOInformationorHandoverInformationC12RequestorIndicationFlag(RIF)RequestorIndicationFlag(RIF)C13spare,setto1UplinkFrameError(UFE)C14.C15.C16Config_ProtConfig_ProtC17.C18Message_NoMessage_NoC19DTXindownlinkrequested(DTXd)spare,reservedforTFO(see08.62)C20TFOEnabled(TFOE)spare,reservedforTFO(see08.62)C21.C22Frame_Classification,Rx_TypeFrame_Classification,Tx_TypeC23.C24.C25Codec_Mode_Indication(RIF==0)orCodec_Mode_Request(RIF==1)or0.0.0(Frame_Classification==0.0)Codec_Mode_Indication(RIF==0)orCodec_Mode_Request(RIF==1)or0.0.0(Frame_Classification==0.0)DetailedDescription:FrameType:ThecodingoftheFrame_Type(alsocalled"Codec_Type")forAMRisidenticalinuplinkanddownlink.C1.C5:0.0.1.1.0:AdaptiveMulti-RateCodec.TimeAlignmentField:TheTimeAlignmentField(BitsC6.C11)isusedtocarryeithertheTimeAlignmentCommand(TAC),thePhaseAlignmentControl(PAC)ortheTFOandHandoverInformation.TheTimeAlignmentCommandiscodedasfortheFullRateandEnhancedFullRate(subclause3.5.1.1.1).TimeAlignmentCommand(TAC):Intheuplinkdirection(BTStoTRAU)theTACindicatestherequiredtimingadjustmentforthedownlinkTRAUframetobemadebytheTRAUin250/500µssteps.C6.C11:0.0.0.0.0.0Nochangeinframetiming0.0.0.0.0.1Delayframe1x500µs(sendfouradditionalT-Bit-pairsaftertheendoftheTRAUFrame)0.0.0.0.1.0Delayframe2x500µs(sendeightadditionalT-Bit-pairsaftertheendoftheTRAUFrame)…1.0.0.1.1.1Delayframe39x500µs(send156additionalT-Bit-pairsaftertheendoftheTRAUFrame)(1.0.1.0.0.0to1.1.0.1.1.1:16code-points,unused,reserved)(1.1.1.0.0.0to1.1.1.0.1.1:4code-points,reservedforTFOandHandoverInformation)(1.1.1.1.0.0reserved,unused)(1.1.1.1.0.1reservedforAMRCMI/CMRPhaseAlignmentCommand(PAC),nochangeinframetiming)1.1.1.1.1.0Delayframeby250µs(sendtwoadditionalT-Bit-pairsaftertheendoftheTRAUFrame)1.1.1.1.1.1Advanceframeby250µs(donotsendthetwoT-Bit-pairsattheendoftheTRAUFrame).PhaseAlignmentCommand(PAC)(usefulwhenTFOisnotsupportedordisabled):ThePhaseAlignmentCommand(PAC)canbeusedbytheBTStocommandtheTRAUtochange(invert)thephaseofCMI/CMR,respectivelyRIF,indownlinkTRAUframes,seesubclause4.6.1.2.1.C6.C11:1.1.1.1.0.1AMRCMI/CMRPhaseAlignmentCommand(PAC),nochangeinframetiming.InNo_SpeechframesthePhaseAlignmentCommandmayoptionallybetransmittedbyoneadditionalbit(PAB,seesubclause3.5.1.2.2)thatallowsadirecttimeandphasealignmentinonestep.SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)20(GSM08.60version7.2.1Release1998)TFOInformation(recommendedwhenTFOissupported,seeGSM08.62):C6.C111.1.1.0.0.01.1.1.0.0.11.1.1.0.1.0ThesethreecodesarereservedforTandemFreeOperation(seeGSM08.62).Theyresultinnochangeinframetiming.IftheBTSdoesnotsupportTFOorTFOisdisabledthesecodesshallnotbeused.TheproceduretoexchangethisinformationbetweenBTSandTRAUisdescribedinGSM08.62.HandoverInformation(recommendedwhenPre-HandoverWarningissupported):C6.C11:1.1.1.0.1.1Handover_SoonHandoveristobeexpectedsoon.Thiscodeisused,iftheBSCandBTSsupportPre-HandoverWarning.Itresultsinnochangeinframetiming.TheBTSshallrepeatthisinformationaslongasitisvalidineveryframewherenootherinformationhastobetransmittedintheTimeAlignmentField.TheTRAUshallnotreflectoracknowledgeit.TheproceduretoexchangethisinformationincaseofTFOisdescribedinGSM08.62.RequestorIndicationFlag(RIF):ThisflagindicatesthephaseoftheCodec_Mode_Indication(RIF==0)respectivelytheCodec_Mode_Request(RIF==1).Ithasthesamemeaninginuplinkandindownlink.Typicallythisflagtoggleseveryframe.ExceptionsmayoccurathandoverandCMI/CMRphasealignment,seesubclause4.6.1.2.1.UplinkFrameError(UFE):IndownlinktheUFEindicatesthatthemostrecentlyreceiveduplinkTRAUframehaddetectableerrors.Inuplinkthisbitshallbesetto"1".UFE==0:"UplinkFramereceivedwithErrors";UFE==1:"UplinkFramereceivedwithoutErrors".Note:theUFEisnotrelatedtotheframeclassification(Rx_Type)ascomputedbytheBTSradioreceiver.ItisrelatedtoinconsistenciesintheTRAUframesynchronization,controlbitsorCRCswithintheTRAUframe.Config_ProtThisfieldisreservedfortheConfigurationProtocolincaseofTandemFreeOperation(seeGSM08.62).IftheBTSdoesnotsupportTFOorTFOisdisabled,thenthisfieldshallbesetto"0.0.0".Message_NoThisfieldisreservedfortheConfigurationProtocolincaseofTandemFreeOperation(seeGSM08.62).IftheBTSdoesnotsupportTFOorTFOisdisabled,thenthisfieldshallbesetto"0.0".DTXindownlinkrequested(DTXd)Seesubclause4.6.2.2.TFOEnabled(TFOE)ThisbitenablesordisablesTandemFreeOperationintheTRAU.IftheBTSdoesnotsupportTFOorTFOisdisabled,thenthisbitshallbesetto"0".Coding:TFOE==0:TFODisabled;TFOE==1:TFOEnabled.Frame_Classification:ThisfieldclassifiesthecontentsoftheTRAUframeasseenbytheradioreceiver,seeGSM06.93:C21.C22:11"Speech_Good"theframecanbedecodedwithoutrestriction10"Speech_Degraded"theframemightcontainundetectederrors01"Speech_Bad"theframecontainserrorsthatcannotbecorrected00"No_Speech"theframeisnotaspeechframe,seebelow.IntheuplinkdirectiontheFrame_Classificationisalsocalled"Rx_Type"andisalwayssetbytheBTS.InthedownlinkdirectiontheFrame_Classificationisalsocalled"Tx_Type".IfTandemFreeOperationisnotongoing,thenthecodes"Speech_Degraded",and"Speech_Bad"shallnotbeusedinthedownlinkdirection.IfTandemFreeOperationisongoing,thenallcodesmaybeusedinthedownlinkdirection.ForthehandlingwithinthedownlinkBTS,seeGSM08.62).SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)21(GSM08.60version7.2.1Release1998)Codec_Mode_Indication/Codec_Mode_Request:This3-bitfieldhasthreedifferentmeanings,dependingontheFrame_ClassificationfieldandtheRequest_or_Indication_Flag(RIF):IfFrame_Classificationisdifferentthan"0.0"thenthisfieldcontainseithertheCodec_Mode_Indication(CMI),ifRIFequals0;ortheCodec_Mode_Request(CMR),ifRIFequals1.IfFrame_Classificationisequalto"0.0",i.e.whenaNo_Speechframeistransmitted,thenthisfieldshallbesetto"0.0.0".CMIandCMRarethensimultaneouslytransmittedintheDataBits.Thecodingisidenticalinuplinkanddownlink.C23.C24.C25:000Codec_Mode4,75kBit/s001Codec_Mode5,15kBit/s010Codec_Mode5,90kBit/s011Codec_Mode6,70kBit/s100Codec_Mode7,40kBit/s101Codec_Mode7,95kBit/s110Codec_Mode10,2kBit/s111Codec_Mode12,2kBit/sTheCMIindicatestheCodec_Modetobeusedfordecodingtheassociatedspeechparametersinthesameandthenextframe.TheCMRindicatestheCodec_Modetobeusedforencodingintheoppositedirection.NOTE1:IntheTRAUframes,theCodec_Mode_Request,respectivelytheCodec_Mode_Indicationarecodedabsolutely(threebitsforeightpossiblemodes).Ontheradiointerface,becauseofbandwidthlimitation,theseparametersarecodedwithtwobitsonly.TheCCUshallperformtherequiredtranslation.NOTE2:IncaseofnoTandemFreeOperationtheuplinkCMRisaCodec_Mode_Command(CMC)fromtheBTStotheTRAUandtheTRAUshalltrytofollowthecommandassoonaspossible.TheonlyallowedexceptionisincaseofDTXwhenSIDorNo_Dataframescanbeusedduringspeechpauses.InthedownlinkdirectiontheCMRshallbesetbytheTRAUto"1.1.1".NOTE3:IncaseofanongoingTandemFreeOperation,thelocaluplinkCMRisanindicationfromthelocalBTStotheTRAU,respectivelytothedistantBTS,onthehighestallowedCodec_Modeinthelocaldownlinkdirection.ThisindicationmustbecombinedwiththecorrespondingCMRinthedistantuplinkdirectiontosettheCodecModetouseinthatdirection.ThelocaldownlinkCMRistheindicationfromthedistantradiolinkonthehighestallowedCodec_Modeinthedistantdownlinkdirection.ThisindicationmustbecombinedwiththecorrespondingCMRforthelocaluplinkdirection,seeGSM05.09and08.62.3.5.1.2.2CodingofDatabits(D-bits)InCodec_Mode10,2kBit/sthebitsD1…D20andD234…D253arereservedforTandemFreeOperationInallCodec_Modesbelow10,2kBit/sandinallNo_SpeechframesthebitsD1…D31(31bits)andD203…D256(54bits)arereservedforTandemFreeOperation(seeGSM08.62).InNo_SpeechframesadditionallybitsD44…D57(14bits)arereservedforTFOaswell.IftheBTSdoesnotsupportTFOorTFOisdisabled,thenthebitsinthesefieldsshallallbesetto"1".CodingofSpeechFrames:ThecontentsoftheDatabitsforalleightAMRCodec_Modesaredefinedinthefollowing,incaseswhentheFrame_ClassificationiseithersettoSpeech_Good,Speech_Degraded,orSpeech_Bad.Thespeechblockissubdividedintofoursubsets.Theorderwithinagivensubsetisthesameasoutputfromthetranscoder(seeGSM06.90).Thefourtimesthreeparitybits(CRC1toCRC4),addedattheendofeachsubset,aregeneratedusingthesamecycliccodeasdefinedfortheEnhancedFullRate(seesubclause3.5.1.1.2).TheTRAUframeformatsinuplinkanddownlinkdirectionareidentical.AMR_Mode12,2kBit/s,seeGSM06.90:D1.D38:IndexesoftheLSFsubmatrices(s1…s38)D39.D91:Indexesoftheparametersoffirstsub-frame(s39…s91)D92.D94:CRC1overbitsC1…C25,s1…s29,s39…s50,s87…s89.D95.D144:Indexesoftheparametersofsecondsub-frame(s92…s141)D145.D147:CRC2overbitss92…s100,s137…s139.D148.D200:Indexesoftheparametersofthirdsub-frame(s142…s194)D201.D203:CRC3overbitss142…s153,s190…s192.D204.D253:Indexesoftheparametersoffourthsub-frame(s195….s244)D254.D256:CRC4overbitss195…s199,s201…s203,s240…s242.SIST EN 300 737 V7.2.1:2003

ETSIETSIEN300737V7.2.1(2000-09)22(GSM08.60version7.2.1Release1998)AMR_Mode10,2kBit/s,seeGSM06.90:D21.D46:IndexesoftheLSFsubmatrices(s1.s26)D47.D92:Indexesoftheparametersoffirstsub-frame(s27.s72)D93.D95:CRC1overbitsC1.C25,D1.D20,s1.s25,s27.s34,s66,s67,s69,s70.D96.D138:Indexesoftheparametersofsecondsub-frame(s73.s115)D139.D141:CRC2overbitss73.s76,s109,s110,s112,s113.D142.D187:Indexesoftheparametersofthirdsub-frame(s116.s161)D188.D190:CRC3overbitss116.s123,s155,s156,s158,s159.D191.D233:Indexesoftheparametersoffourthsub-frame(s162.s204)D254.D256:CRC4overbitss162.s165,s198,s199,s201,s202,D234.D253.AMR_Mode7,95kBit/s,seeGSM06.90:D32.D58:IndexesoftheLSFsubmatrices(s1.s27)D59.D92:Indexesoftheparametersoffirstsub-frame(s28.s61)D93.D95:CRC1overbitsC1.C25,s1.s35,s53,s54,s57,s60.D96.D127:Indexesoftheparametersofsecondsub-frame(s62.s93)D128.D130:CRC2overbitss62.s65,s85,s86,s89.s92.D131.D164:Indexesoftheparametersofthirdsub-frame(s94.s127)D165.D167:CRC3overbitss94.s101,s119,s120,s123.s126.D168.D199:Indexesoftheparametersoffourthsub-frame(s128.s159)D200.D202:CRC4overbitss128.s131,s151,s152,s155.s158.AMR_Mode7,40kBit/s,seeGSM06.90:D32…34spare(3bits);setto"1"D35.D60:IndexesoftheLSFsubmatrices(s1.s26)D61.D92:Indexesoftheparametersoffirstsub-frame(s27.s58)D93.D95:CRC1:bitsC1.C25,s1.s20,s22.s24,s27.s32,s52,s53,s55.s57.D96.D124:Indexesoftheparametersofsecondsub-frame(s59.s87)D125.D127:CRC2overbitss59.s61,s81,s82,s84.s86.D128.D159:Indexesoftheparametersofthirdsub-frame(s88.s119)D160.D162:CRC3overbitss88.s93,s113,s114,s116.s118.D163.D191:Indexesoftheparametersoffourthsub-frame(s120.s148)D192.D194:CRC4overbitss120.s122,s142,s143,s145,s146.D195.D202:spare(8bits);setto"1".AMR_Mode6,70kBit/s,seeGSM06.90:D32…D37:spare(6bits);setto"1"D38.D63:IndexesoftheLSFsubmatrices(s1.s26)D64.D92:Indexesoftheparametersoffirstsub-frame(s27.s55)D93.D95:CRC1overbitsC1.C25,s1.s17,s20,s24,s27.s34,s49.s53.D96.D120:Indexesoftheparametersofsecondsub-frame(s56.s80)D121.D123:CRC2overbitss56.s59,s74.s78.D124.D152:Indexesoftheparametersofthirdsub-frame(s81.s109)D153.D155:CRC3overbitss81.s88,s103.s107.D156.D180:Indexesoftheparametersoffourthsub-frame(s110.s134)D181.D183:CRC4overbitss110.s113,s128.s132.D184.D202:spare(19bits);setto"1".AMR_Mode5,90kBit/s,seeGSM06.90:D32…D41:spare(10bits);setto"1"D42.D67:IndexesoftheLSFsubmatrices(s1.s26)D68.D92:Indexesoftheparametersoffirstsub-frame(s27.s51)D93.D95:CRC1overbitsC1.C25,s1.s17,s27.s34,s48.s51.D96.D116:Indexesoftheparametersofsecondsub-frame(s52.s72)D117.D119:CRC2overbitss52.s54,s69.s72.D120.D144:Indexesoftheparametersofthirdsub-frame(s73.s97)D145.D147:CRC3overbitss73.s80,s94.s97.D148.D168:Indexesoftheparametersof
...