SIST EN 300 967 V8.0.1:2003
(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 8.0.1 Release 1999)
General Information
- Abstract
Update to Version 8.0.0 CRs from SMG#31
- 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 V8.0.1:2003 is a standard developed by the Slovenian Institute for Standardization (SIST) and is identical to ETSI EN 300 967 Version 8.0.1. The standard specifies the ANSI-C code for the GSM half rate speech codec, corresponding to GSM 06.06 version 8.0.1 (Release 1999), as part of the digital cellular telecommunications system (Phase 2+) known as the Global System for Mobile Communication (GSM). This version reflects updates from the SMG#31 Change Requests and is part of a coordinated family of GSM speech coding standards crucial for efficient and interoperable mobile communications.
Key Topics
- GSM Half Rate Codec: Defines the speech codec used on half rate traffic channels, enabling efficient use of network resources and supporting more simultaneous users.
- ANSI-C Source Code: The document includes the bit-exact ANSI-C code, ensuring precise implementation across platforms.
- Code Structure and Execution:
- Directory and file organization for source code, test data, utilities, and executables.
- Platform compatibility (Sun Microsystems, IBM PC/AT, VAX systems) using standard C (ISO/ANSI C89) for maximum portability.
- Interoperability Tools:
- Binary data format handling, conversion utilities (e.g., byteswap, UNIX to PC text), and tools for handling encoder/decoder interfaces.
- Integration with GSM Components:
- Linkages to other core GSM speech handling standards: transcoding, voice activity detection (VAD), comfort noise generation, discontinuous transmission (DTX), and test sequences.
- Release and Versioning:
- Part of Release 1999 (Phase 2+) and explains the version control strategy for technical updates and editorial changes.
Applications
SIST EN 300 967 V8.0.1:2003 has wide relevance in the mobile telecommunications field, especially related to GSM network infrastructure and mobile device design:
Mobile Network Operators:
- Ensures consistent speech quality and efficient channel usage by supporting half rate codecs.
- Facilitates interoperability among equipment from different manufacturers using standardized bit-exact speech processing implementations.
Equipment Manufacturers:
- Reference ANSI-C code allows straightforward integration into base stations, mobile switching centers, and mobile devices.
- Accelerates development and verification cycles by including test sequences and verification data files.
Software Developers:
- Enables developers to implement or adapt the GSM half rate speech codec in embedded systems, VoIP gateways, or simulation tools.
- Provides utilities for adapting file formats and handling different platforms, ensuring compatibility with GSM conformance requirements.
Testing and Certification Bodies:
- Supports compliance testing by providing reference implementations and call graphs, critical for assessing correct codec behavior in end products.
Related Standards
The GSM half rate codec functionality is closely linked to several other key standards in the Phase 2+ GSM series, including:
- GSM 06.20 – Half rate speech transcoding
- GSM 06.21 – Substitution and muting for lost frames on half rate channels
- GSM 06.22 – Comfort noise for half rate speech
- GSM 06.41 – Discontinuous Transmission (DTX) for half rate
- GSM 06.42 – Voice Activity Detector (VAD) for half rate
- GSM 06.07 – Test sequences for half rate codec
- ANSI X3.159-1989 – Programming Language C (C89/C90, ISO/IEC 9899)
By following SIST EN 300 967 V8.0.1:2003 alongside these related standards, stakeholders ensure alignment with established GSM network requirements and global telecommunication practices.
Keywords: GSM half rate codec, ANSI-C code, digital cellular telecommunications, GSM 06.06, speech processing, mobile communications standard, SIST EN 300 967, telecommunications standards, speech codec implementation.
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Frequently Asked Questions
SIST EN 300 967 V8.0.1:2003 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 8.0.1 Release 1999)". This standard covers: Update to Version 8.0.0 CRs from SMG#31
Update to Version 8.0.0 CRs from SMG#31
SIST EN 300 967 V8.0.1:2003 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 V8.0.1:2003 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 V8.0.1:2003 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 8.0.1 Release 1999)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 8.0.1SIST EN 300 967 V8.0.1:2003en01-december-2003SIST EN 300 967 V8.0.1:2003SLOVENSKI
STANDARD
ETSIEN300967V8.0.1(2000-11)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Halfratespeech;ANSI-CcodefortheGSMhalfratespeechcodec(GSM06.06version8.0.1Release1999)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 967 V8.0.1:2003
ETSIETSIEN300967V8.0.1(2000-11)2(GSM06.06version8.0.1Release1999)ReferenceREN/SMG-110606Q8KeywordsCODEC,Digitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM),speech,ANSI-CcodeETSI650RoutedesLuciolesF-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 300 967 V8.0.1:2003
ETSIETSIEN300967V8.0.1(2000-11)3(GSM06.06version8.0.1Release1999)ContentsIntellectualPropertyRights.4Foreword.41Scope.62References.63Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.74Ccodestructure.74.1Directorystructure.74.2Programexecution.84.3Codehierarchy.85ANSI-CcodefortheGSMhalfratespeechcodec.13AnnexA(informative):ChangeRequestHistory.14History.15SIST EN 300 967 V8.0.1:2003
ETSIETSIEN300967V8.0.1(2000-11)4(GSM06.06version8.0.1Release1999)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).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".SIST EN 300 967 V8.0.1:2003
ETSIETSIEN300967V8.0.1(2000-11)5(GSM06.06version8.0.1Release1999)ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version8.x.ywhere:8indicatesRelease1999ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:3November2000DateoflatestannouncementofthisEN(doa):28February2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2001DateofwithdrawalofanyconflictingNationalStandard(dow):31August2001SIST EN 300 967 V8.0.1:2003
ETSIETSIEN300967V8.0.1(2000-11)6(GSM06.06version8.0.1Release1999)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.• ForthisRelease1999document,referencestoGSMdocumentsareforRelease1999versions(version8.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:"Digitalcellulartelecommunic
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