SIST EN 301 703 V7.0.2:2003

Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi-Rate (AMR); Speech processing functions; General description (GSM 06.71 version 7.0.2 Release 1998)

Adaptive Multi- Rate (AMR) speech processing functions

Digitalni celični telekomunikacijski sistem (faza 2+) – Prilagodljive večhitrostne (AMR) funkcije za obdelavo govora – Splošni opis (GSM 06.71, različica 7.0.2, izdaja 1998)

General Information

• 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
• Mandate: T-172
• Ref Project: ETSI EN 301 703 V7.0.2 (1999-12) - Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi-Rate (AMR); Speech processing functions; General description (GSM 06.71 version 7.0.2 Release 1998)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi-Rate (AMR); Speech processing functions; General description (GSM 06.71 version 7.0.2 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 301 703 Version 7.0.2SIST EN 301 703 V7.0.2:2003en01-december-2003SIST EN 301 703 V7.0.2:2003SLOVENSKI
STANDARD
ETSIEN301703V7.0.2(1999-12)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);AdaptiveMulti-Rate(AMR);Speechprocessingfunctions;Generaldescription(GSM06.71version7.0.2Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)2(GSM06.71version7.0.2Release1998)ReferenceDEN/SMG-110671Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]Ideliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute1999.Allrightsreserved.SIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)3(GSM06.71version7.0.2Release1998)ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.64General.65Adaptivemulti-ratespeechchanneltranscoding.85.1Fullratechannel.85.2Halfratechannel.96Adaptivemulti-ratespeechchanneldiscontinuoustransmission(DTX).97Adaptivemulti-ratespeechchannelVoiceActivityDetection(VAD).108Adaptivemulti-ratespeechchannelcomfortnoiseinsertion.109Adaptivemulti-ratespeechchannellostspeechframesubstitutionandmuting.1110Adaptivemulti-ratecodechoming.11History.12SIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)4(GSM06.71version7.0.2Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbySpecialMobileGroup(SMG).ThepresentdocumentintroducestheAdaptiveMulti-Rate(AMR)speechtrafficchannelswithinthedigitalcellulartelecommunicationssystem.ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:3December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)5(GSM06.71version7.0.2Release1998)1ScopeThepresentdocumentisanintroductiontoGSM06.90[7],GSM06.91[8],GSM06.92[9],GSM06.93[10]andGSM06.94[11]specificationsdealingwiththespeechprocessingfunctionsintheadaptivemulti-ratechanneloftheGSMsystem.Ageneraloverviewofthespeechprocessingfunctionsisgiven,withreferencetothedocumentswhereeachfunctionisspecifiedindetail.2ReferencesThefollowingdocumentscontainprovisionswhich,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]GSM03.50:"Digitalcellulartelecommunicationssystem(Phase2+);TransmissionplanningaspectsofthespeechserviceintheGSMPublicLandMobileNetwork(PLMN)system".[3]GSM05.09:"Digitalcellulartelecommunicationssystem(Phase2+);Linkadaptation".[4]GSM05.03:"Digitalcellulartelecommunicationssystem(Phase2+);Channelcoding".[5]GSM06.73:"Digitalcellulartelecommunicationssystem(Phase2+);ANSI-CcodefortheGSMAdaptiveMulti-Ratespeechcodec".[6]GSM06.74:"Digitalcellulartelecommunicationssystem(Phase2+);TestsequencesfortheGSMAdaptiveMulti-Ratespeechcodec".[7]GSM06.90:"Digitalcellulartelecommunicationssystem(Phase2+);AdaptiveMulti-Ratespeechtranscoding".[8]GSM06.91:"Digitalcellulartelecommunicationssystem(Phase2+);SubstitutionandmutingoflostframeforAdaptiveMulti-Ratespeechtrafficchannels".[9]GSM06.92:"Digitalcellulartelecommunicationssystem(Phase2+);ComfortnoiseaspectsforAdaptiveMulti-Ratespeechtrafficchannels".[10]GSM06.93:"Digitalcellulartelecommunicationssystem(Phase2+);Discontinuoustransmission(DTX)forAdaptiveMulti-Ratespeechtrafficchannels".[11]GSM06.94:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceActivityDetection(VAD)forAdaptiveMulti-Ratespeechtrafficchannels".SIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)6(GSM06.71version7.0.2Release1998)3Definitionsandabbreviations3.1DefinitionsDefinitionoftermsusedinthepresentdocumentcanbefoundinGSM06.90[7],GSM06.91[8],GSM06.92[9],GSM06.93[10]andGSM06.94[11].3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACELPAlgebraicCodeExcitedLinearPredictionAMRAdaptiveMulti-RateBFIBadFrameIndicationBSSBaseStationSystemBTSBaseTranceiverStationCHDChannelDecoderCHEChannelEncoderDLDownLinkDTXDiscontinuousTransmissionETSEuropeanTelecommunicationStandardGSMGlobalSystemforMobilecommunicationsITU-TInternationalTelecommunicationUnion–Telecommunicationstandardisationsector(formerCCITT)MSMobileStationPCMPulseCodeModulatedPLMNPublicLandMobileNetworkPSTNPublicSwitchedTelephoneNetworkRFRadioFrequencyRSSRadioSubSystemRXReceiveSACCHSlowAssociatedControlChannelSID_FIRSTSpeechendmarkerSID_UPDSilenceDescriptor(backgrounddescriptor)SPDSPeechDecoderSPESPeechEncoderTCTranscoderTRAUTRanscodingandRateAdaptationUnitTXTransmitULUpLinkForabbreviationsnotgiveninthissubclause,seeGSM01.04[1].4GeneralFigure1presentsareferenceconfigurationwherethevariousspeechprocessingfunctionsareidentified.Inthisfigure,therelevantdocumentsforeachfunctionarealsoindicated.InFigure1,theaudiopartsincludinganaloguetodigitalanddigitaltoanalogueconversionareincluded,toshowthecompletespeechpathbetweentheaudioinput/outputintheMobileStation(MS)andthedigitalinterfaceofthePSTN.ThedetailedspecificationoftheaudiopartsarecontainedinGSM03.50[2].Theseaspectsareonlyconsideredtotheextentthattheperformanceoftheaudiopartsaffecttheperformanceofthespeechtranscoder.NotethattheinbandSIST EN 301 703 V7.0.2:2003

ETSIETSIEN301703V7.0.2(1999-12)7(GSM06.71version7.0.2Release1998)signallingisnotshowninFigure1,refertoFigure2.Themodeindications(ULcodecmodeandDLcodecmode)areusedtoselectthemodeofthespeechencoderandspeechdecoderinFigure1.Figure2presentsageneralblockdiagramoftheoverallAMRsystemforuplinkanddownlinkoverthesameradiointerface.MobileStation(MS),BaseTranceiverStation(BTS)andTranscodingandRateAdaptorUnit(TRAU)areshowninthefigure.ThedetailedspecificationofA
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