ETSI EN 301 243 V4.1.1 (2000-11)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2) (GSM); Enhanced Full Rate (EFR) speech processing functions; General description (GSM 06.51 version 4.1.1)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 301 243 Version 4.1.1SIST EN 301 243 V4.1.1:2003en01-december-2003SIST EN 301 243 V4.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 243 V4.1.1:2003



ETSIEN301243V4.1.1(2000-11)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2);EnhancedFullRate(EFR)speechprocessingfunctions;Generaldescription(GSM06.51version4.1.1)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 301 243 V4.1.1:2003



ETSIETSIEN301243V4.1.1(2000-11)2(GSM06.51version4.1.1)ReferenceREN/SMG-110651PR1KeywordsEFR,digitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM),speechETSI650RoutedesLuciolesF-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 301 243 V4.1.1:2003



ETSIETSIEN301243V4.1.1(2000-11)3(GSM06.51version4.1.1)ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.53.1Definitions.53.2Abbreviations.64General.65EnhancedFullRatespeechchanneltranscoding.86EnhancedFullRatespeechchanneldiscontinuoustransmission(DTX).87EnhancedFullRatespeechchannelVoiceActivityDetection(VAD).88EnhancedFullRatespeechchannelcomfortnoiseinsertion.99EnhancedFullRatespeechchannellostspeechframesubstitutionandmuting.910EnhancedFullRatecodechoming.911AlternativeEnhancedFullRateimplementationusingtheAdaptiveMultiRate12.2kbit/smode.10AnnexA(informative):ChangeRequestHistory.11History.12SIST EN 301 243 V4.1.1:2003



ETSIETSIEN301243V4.1.1(2000-11)4(GSM06.51version4.1.1)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).ThepresentdocumentintroducestheEnhancedFullRate(EFR)speechtrafficchannelswithinthedigitalcellulartelecommunicationssystem.ThepresentdocumentcorrespondstoGSMtechnicalspecification,GSM06.51,version4.0.1.NationaltranspositiondatesDateofadoptionofthisEN:24November2000DateoflatestannouncementofthisEN(doa):28February2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2001DateofwithdrawalofanyconflictingNationalStandard(dow):31August2001SIST EN 301 243 V4.1.1:2003



ETSIETSIEN301243V4.1.1(2000-11)5(GSM06.51version4.1.1)1ScopeThepresentdocumentisanintroductiontoGSM06.60(EN301245)[6],GSM06.61(EN301246)[7],GSM06.62(EN301247)[8],GSM06.81(EN301248)[9]andGSM06.82(EN301249)[10]ENsdealingwiththespeechprocessingfunctionsintheEnhancedFullRatechanneloftheGSMsystem.Ageneraloverviewofthespeechprocessingfunctionsisgiven,withreferencetotheENswhereeachfunctionisspecifiedindetail.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]GSM01.04(ETR100):"Digitalcellulartelecommunicationssystem(Phase2);Abbreviationsandacronyms".[2]GSM03.50(ETS300540):"Digitalcellulartelecommunicationssystem(Phase2);TransmissionplanningaspectsofthespeechserviceintheGSMPublicLandMobileNetwork(PLMN)system".[3]GSM05.03(ETS300575):"Digitalcellulartelecommunicationssystem(Phase2);Channelcoding".[4]GSM06.53(EN301244):"Digitalcellulartelecommunicationssystem(Phase2);ANSI-CcodefortheGSMEnhancedFullRate(EFR)speechcodec".[5]GSM06.54(EN301250):"Digitalcellulartelecommunicationssystem(Phase2);TestvectorsfortheGSMEnhancedFullRate(EFR)speechcodec".[6]GSM06.60(EN301245):"Digitalcellulartelecommunicationssystem(Phase2);EnhancedFullRate(EFR)speechtranscoding".[7]GSM06.61(EN301246):"Digitalcellulartelecommunicationssystem(Phase2);SubstitutionandmutingoflostframeforEnhancedFullRate(EFR)speechtrafficchannels".[8]GSM06.62(EN301247):"Digitalcellulartelecommunicationssystem(Phase2);ComfortnoiseaspectsforEnhancedFullRate(EFR)speechtrafficchannels".[9]GSM06.81(EN301248):"Digitalcellulartelecommunicationssystem(Phase2);Discontinuoustransmission(DTX)forEnhancedFullRate(EFR)speechtrafficchannels".[10]GSM06.82(EN301249):"Digitalcellulartelecommunicationssystem(Phase2);VoiceActivityDetector(VAD)forEnhancedFullRate(EFR)speechtrafficchannels".3Definitionsandabbreviations3.1DefinitionsDefinitionoftermsusedinthepresentdocumentcanbefoundinGSM06.60(EN301245)[6],GSM06.61(EN301246)[7],GSM06.62(EN301247)[8],GSM06.81(EN301248)[9]andGSM06.82(EN301249)[10].SIST EN 301 243 V4.1.1:2003



ETSIETSIEN301243V4.1.1(2000-11)6(GSM06.51version4.1.1)3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACELPAlgebraicCodeExcitedLinearPredictionBFIBadFrameIndicationBSSBaseStationSystemCCITTComitéConsultatifInternationalTélégraphiqueetTéléphoniqueDTXDiscontinuousTransmissionETSEuropeanTelecommunicationStandardGSMGlobalSystemforMobilecommunicationsMSMobileStationPCMPulseCodeModulatedPLMNPublicLandMobileNetworkPSTNPublicSwitchedTelephoneNetworkRFRadioFrequencyRSSRadioSubSystemRXReceiveSACCHSlowAssociatedControlCHannelSIDSIlenceDescriptorSPflagSPeechflagTAFTimeAlignmentFlagTXTransmitForabbreviationsnotgiveninthisclause,seeGSM01.04(ETR100)[1].4GeneralFigure1presentsareferenceconfigurationwherethevariousspeechprocessingfunctionsareidentified.Inthisfigure,therelevantStandardsforeachfunctionarealsoindicated.Infigure1,theaudiopartsincludinganaloguetodigitalanddigitaltoanalogueconversionareincluded,toshowthecompletespeechpathbetweentheaudioinput/outputintheMobileStation(MS)andthedigitalinterfaceofthePSTN.ThedetailedspecificationoftheaudiopartsarecontainedinGSM03.50(ETS300540)[2].Theseas
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