SIST EN 300 737 V7.2.1:2003

• Abstract:

  SMG#30ff

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 737 V7.2.1 (2000-09) - 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)

Overview

SIST EN 300 737 V7.2.1:2003 sets out the European Standard for the in-band control of remote transcoders and rate adaptors within the digital cellular telecommunications system (GSM Phase 2+). It specifically addresses the procedures and frame structures for managing full rate traffic channels, including full rate speech, enhanced full rate speech, adaptive multi-rate (AMR) speech, and full rate data. This standard is integral for telecommunications network operators, manufacturers, and engineers working to ensure interoperability and quality in GSM networks, especially where remote control and management of transcoders and rate adaptation units are required across the Abis interface.

Key Topics

• In-band Control of Remote Transcoders and Rate Adaptors: Describes the mandatory signaling procedures and frame formats needed for remote management and synchronization.
• Support for Multiple Speech and Data Services: Covers handling of full rate, enhanced full rate, and AMR speech, as well as various data channel bit rates.
• Frame Structure and Coding: Defines the 320-bit frame structure (TRAU frames) for transmitting both speech/data and control information.
• Channel Coding and Rate Adaptation: Details how to perform channel coding and adapt data rates according to existing GSM specifications.
• Operational Procedures:
  • Resource allocation and release
  • Handover and synchronization
  • In-call modification and support for discontinuous transmission (DTX)
• Error Detection and Correction: Specifies mechanisms for error detection in control bits and procedures for missing data handling.

Applications

SIST EN 300 737 V7.2.1:2003 is essential for implementing robust and interoperable GSM networks, particularly in deployments where transcoders and rate adaptors are not co-located with the radio equipment. Practical applications include:

• Network Infrastructure Deployments: Enables flexible placement of transcoder and rate adaptation equipment in mobile networks, optimizing network resources and operational costs.
• Interoperability: Supports seamless communication between transcoders, Base Station Controllers (BSC), and Base Transceiver Stations (BTS), vital for multi-vendor network environments.
• Quality of Service (QoS): Accurate control and synchronization of codecs ensure high-quality voice and data services, including during handover or when using AMR codecs.
• Support for Next-generation Features: Lays groundwork for advanced features such as Tandem Free Operation (TFO) and adaptive multi-rate speech, which are critical for network efficiency and user experience improvements.
• Operation and Maintenance (O&M): Facilitates remote monitoring, resource management, and troubleshooting within GSM infrastructure through dedicated O&M frames and signaling.

Related Standards

For effective implementation of SIST EN 300 737 V7.2.1:2003, it should be used in conjunction with several related GSM standards, including:

• GSM 08.20: Rate adaptation on the BSS-MSC interface.
• GSM 08.51: General aspects of the BSC-BTS interface.
• GSM 08.61: In-band control for half rate traffic channels.
• GSM 08.62: In-band Tandem Free Operation of Speech Codecs.
• GSM 06.10, 06.60, 06.90: Specifications for full rate, enhanced full rate, and AMR speech transcoding processes.
• CCITT G.711: Pulse code modulation standard for voice frequencies.

Conclusion

By specifying in-band control methods for remote transcoder and rate adaptor management within GSM networks, SIST EN 300 737 V7.2.1:2003 provides a critical foundation for high-quality, flexible, and future-proof mobile communications infrastructure. Implementing this standard ensures compliance, interoperability, and optimal performance in evolving GSM environments.

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.:[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 300 737 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
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