SIST EN 300 967 V7.0.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); Half rate speech; ANSI-C code for the GSM half rate speech codec GSM 06.06 version 7.0.1 Release 1998)
General Information
- Abstract
Upgrade from Phase 2+ to Release 1998
- Status
- Published
- Publication Date
- 30-Nov-2003
- 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
Overview
SIST EN 300 967 V7.0.1:2003 is a Slovenian standard that aligns with European Standard EN 300 967 Version 7.0.1, specifying the ANSI-C source code for the GSM half rate speech codec, as defined in GSM 06.06 version 7.0.1 (Release 1998). This standard forms part of the comprehensive framework governing the Global System for Mobile Communications (GSM) Phase 2+, focusing on efficient, reliable digital speech transmission at half rate. The included ANSI-C code enables bit-exact implementation and verification of GSM half rate speech codec compliance, supporting interoperability and consistent performance in digital cellular telecommunications.
Key Topics
- GSM Half Rate Speech Codec: Provides the ANSI-C code for the GSM half rate codec, supporting efficient mobile voice transmission with reduced bit rates.
- Portability & Verification: The ANSI-C code enables platform-independent deployment and bit-exact verification on various computing systems, including Sun workstations, IBM PC/AT (Borland Turbo-C), and VAX systems.
- Directory Structure & Code Organization: The accompanying code is structured for ease of use:
- Source code and headers in the
csubdirectory - Example binary input/output files in
d - Executables and makefiles in
exec - Utility programs for data format conversion in
utils
- Source code and headers in the
- Implementation Guidance: Documentation provides practical instructions for code installation, execution, and verification using standard test sequences as per GSM 06.07.
- Compliance & Interoperability: Ensures that mobile network implementations adhere to standardized speech processing, facilitating global compatibility across GSM networks.
- Scope of Upgrade: Reflects the evolution from GSM Phase 2+ to Release 1998, incorporating the latest enhancements and corrections for the half rate codec.
Applications
SIST EN 300 967 V7.0.1:2003 is essential for organizations and developers working in the GSM ecosystem and mobile telecommunications industry:
- Mobile Network Infrastructure: Integrating the GSM half rate speech codec ensures interoperability and optimizes network capacity for voice transmission.
- Handset Development: Mobile device manufacturers use the reference ANSI-C implementation to ensure compatibility and meet network requirements.
- Telecom Equipment Testing: Verification tools and test suites utilize the bit-exact code to confirm codec behavior, compatibility, and voice quality.
- Software Development: Companies developing GSM network software or embedded systems leverage the standardized codec source code for consistent speech processing.
- Standards Compliance: Ensures that hardware and software conform to ETSI and related international standards for mobile communication.
Related Standards
To ensure comprehensive GSM half rate speech codec implementation and full compliance, reference the following associated standards:
- GSM 06.02: Functions for half rate speech processing.
- GSM 06.07: Test sequences for the GSM half rate speech codec.
- GSM 06.20: Half rate speech transcoding methodology.
- GSM 06.21: Frame substitution and muting procedures.
- GSM 06.22: Comfort noise generation for half rate channels.
- GSM 06.41: Handling of Discontinuous Transmission (DTX).
- GSM 06.42: Voice Activity Detection (VAD) methodologies.
- ANSI C (ISO 9899): The programming language standard for C, ensuring code portability.
SIST EN 300 967 V7.0.1:2003 plays a vital role in supporting robust, interoperable, and efficient mobile voice services within the GSM framework by delivering a bit-exact, platform-independent implementation of the half rate speech codec. This supports the broad adoption and reliable function of GSM technology worldwide.
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Frequently Asked Questions
SIST EN 300 967 V7.0.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); Half rate speech; ANSI-C code for the GSM half rate speech codec GSM 06.06 version 7.0.1 Release 1998)". This standard covers: Upgrade from Phase 2+ to Release 1998
Upgrade from Phase 2+ to Release 1998
SIST EN 300 967 V7.0.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.070.50 - Global System for Mobile Communication (GSM). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 967 V7.0.1:2003 is associated with the following European legislation: Standardization Mandates: T-172. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 967 V7.0.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Half rate speech; ANSI-C code for the GSM half rate speech codec GSM 06.06 version 7.0.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 967 Version 7.0.1SIST EN 300 967 V7.0.1:2003en01-december-2003SIST EN 300 967 V7.0.1:2003SLOVENSKI
STANDARD
ETSIEN300967V7.0.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;ANSI-CcodefortheGSMhalfratespeechcodec(GSM06.06version7.0.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 967 V7.0.1:2003
ETSIETSIEN300967V7.0.1(2000-01)2(GSM06.06version7.0.1Release1998)ReferenceREN/SMG-110606Q7KeywordsCODEC,Digitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM),speech,ANSI-CcodeETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 967 V7.0.1:2003
ETSIETSIEN300967V7.0.1(2000-01)3(GSM06.06version7.0.1Release1998)ContentsIntellectualPropertyRights.4Foreword.41Scope.62References.63Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.74Ccodestructure.74.1Directorystructure.74.2Programexecution.84.3Codehierarchy.85ANSI-CcodefortheGSMhalfratespeechcodec.15AnnexA(informative):ChangeRequestHistory.16History.17SIST EN 300 967 V7.0.1:2003
ETSIETSIEN300967V7.0.1(2000-01)4(GSM06.06version7.0.1Release1998)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)hasbeenproducedbytheSpecialMobileGroup(SMG).Anelectronicattachmentaccompaniesthepresentdocument,thiscontainsclause5,thebit-exactANSI-CcodefortheGSMhalfratecodec.Thepresentdocumentspecifiesthehalfratespeechtrafficchannelsforthedigitalcellulartelecommunicationssystem.Thepresentdocumentispartofaseriescoveringthehalfratespeechtrafficchannelsasdescribedbelow:GSM06.02"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Halfratespeechprocessingfunctions".GSM06.06"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;ANSI-CcodefortheGSMhalfratespeechcodec".GSM06.07"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;TestsequencesfortheGSMhalfratespeechcodec".GSM06.20"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Halfratespeechtranscoding".GSM06.21"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Substitutionandmutingoflostframesforhalfratespeechtrafficchannels".GSM06.22"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Comfortnoiseaspectsforhalfratespeechtrafficchannels".GSM06.41"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;DiscontinuousTransmission(DTX)forhalfratespeechtrafficchannels".GSM06.42"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;VoiceActivityDetector(VAD)forhalfratespeechtrafficchannels".ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.SIST EN 300 967 V7.0.1:2003
ETSIETSIEN300967V7.0.1(2000-01)5(GSM06.06version7.0.1Release1998)NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 967 V7.0.1:2003
ETSIETSIEN300967V7.0.1(2000-01)6(GSM06.06version7.0.1Release1998)1ScopeThepresentdocumentcontainsanelectroniccopyoftheANSI-CcodefortheGSMhalfratecodec.TheANSI-Ccodeisnecessaryforabitexactimplementationofthehalfratespeechtranscoder(GSM06.20[2]),VoiceActivityDetector(GSM06.42[6]),comfortnoise(GSM06.22[4]),DiscontinuousTransmission(GSM06.41[5])andexamplesolutionsforsubstitutingandmutingoflostframes(GSM06.21[3]).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:"Digitalcellulartelecommunicationsystem(Phase2+);Abbreviationsandacronyms".[2]GSM06.20:"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Halfratespeechtranscoding".[3]GSM06.21:"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Substitutionandmutingoflostframeforhalfratespeechtrafficchannels".[4]GSM06.22:"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;Comfortnoiseaspectsforhalfratespeechtrafficchannels".[5]GSM06.41:"Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;DiscontinuousTransmission(DTX)forhalf
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