General Information

Abstract

CR SMG#31

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 300 908 V7.4.1 (2000-09) - Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 7.4.1 Release 1998)

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SIST EN 300 908 V7.4.1:2003

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Overview

SIST EN 300 908 V7.4.1:2003 is the Slovenian adoption of the European Standard EN 300 908 (GSM 05.02 version 7.4.1), developed by the European Telecommunications Standards Institute (ETSI) for digital cellular telecommunications systems, specifically for Phase 2+ of GSM (Global System for Mobile Communications). This standard defines the methods for multiplexing and multiple access on the radio path in GSM cellular networks, addressing the physical and logical channels required for efficient mobile communication.

The standard is a core reference for network designers and operators to ensure interoperability and effective use of the available radio spectrum in GSM 900 MHz and 1800 MHz bands.

Key Topics

  • Logical Channels: Details the different logical channels used for carrying speech, data, signaling, and control information within GSM networks.

    • Traffic Channels (TCHs) for voice and data
    • Control Channels (Broadcast, Common, Dedicated, and CTS)
    • Packet Data Channels for GPRS support

  • Physical Channels: Describes how logical channels are mapped to physical radio resources using time and frequency.

    • TDMA (Time Division Multiple Access) frames and timeslots
    • Frequency channels and their allocation

  • Multiplexing and Multiple Access: Specifies methods for combining multiple channels and user transmissions over shared radio resources.

    • Frequency division and time division techniques
    • Multislot configurations for increased capacity

  • Channel Mapping: Processes for mapping logical channels onto physical channels both in time and frequency domains, enabling efficient network operation.

  • Control and Broadcast Channels: Information dissemination and control functions, including synchronization (SCH), frequency correction (FCCH), and paging (PCH).

  • Support for GPRS and CTS: Facilitates advanced packet-based services and cordless telephony systems in GSM infrastructure.

Applications

SIST EN 300 908 V7.4.1:2003 plays a foundational role in the design, deployment, and optimization of GSM radio networks. Its practical applications include:

  • Mobile Network Infrastructure: Ensures the correct allocation and management of radio resources for seamless call setup, handover, and data transfers.
  • Mobile Device Compatibility: Guarantees that mobile stations (phones, modules, IoT devices) can connect to and operate within compliant GSM networks globally.
  • Network Planning and Spectrum Management: Provides guidelines for frequency and timeslot assignment, essential for avoiding interference and maximizing capacity.
  • Interoperability: Facilitates cross-vendor compatibility in GSM network elements, supporting a diverse ecosystem of network and device vendors.
  • Evolution to Advanced Services: Lays groundwork for packet-based services (such as GPRS) and CTS (Cordless Telephony System), supporting new business models and applications.

Related Standards

For comprehensive GSM implementation and operation, the following related standards should be considered alongside SIST EN 300 908 V7.4.1:2003:

  • GSM 01.04: Abbreviations and acronyms
  • GSM 03.03: Numbering, addressing, and identification
  • GSM 04.03: MS-BSS interface channel structures and access capabilities
  • GSM 05.03: Channel coding
  • GSM 05.04: Modulation
  • GSM 05.05: Radio transmission and reception
  • GSM 05.08: Radio subsystem link control
  • GSM 05.10: Radio subsystem synchronization
  • GSM 03.64: GPRS radio interface overview

These standards collectively ensure the robust performance, reliability, and interoperability of GSM mobile communications systems.

Keywords: GSM, multiplexing, multiple access, radio path, TDMA, frequency assignment, logical channels, physical channels, control channels, GPRS, mobile telecommunications standard, SIST, EN 300 908, ETSI.

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Frequently Asked Questions

SIST EN 300 908 V7.4.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 7.4.1 Release 1998)". This standard covers: CR SMG#31

CR SMG#31

SIST EN 300 908 V7.4.1:2003 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 300 908 V7.4.1:2003 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); Multiplexing and multiple access on the radio path (GSM 05.02 version 7.4.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 908 Version 7.4.1SIST EN 300 908 V7.4.1:2003en01-december-2003SIST EN 300 908 V7.4.1:2003SLOVENSKI
STANDARD
ETSIEN300908V7.4.1(2000-09)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Multiplexingandmultipleaccessontheradiopath(GSM05.02version7.4.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)2(GSM05.02version7.4.1Release1998)ReferenceREN/SMG-020502Q7R1KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSI650RoutedesLuciolesF-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 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)3(GSM05.02version7.4.1Release1998)ContentsIntellectualPropertyRights.6Foreword.61Scope.71.1References.71.2Abbreviations.82General.83Logicalchannels.83.1General.83.2Trafficchannels.83.2.1General.83.2.2Speechtrafficchannels.93.2.3Circuitswitcheddatatrafficchannels.93.2.4Packetdatatrafficchannels(PDTCH).93.3Controlchannels.93.3.1General.93.3.2Broadcastchannels.93.3.2.1Frequencycorrectionchannel(FCCH).93.3.2.2Synchronizationchannel(SCH).103.3.2.3Broadcastcontrolchannel(BCCH).103.3.2.4PacketBroadcastControlChannel(PBCCH).113.3.3Commoncontroltypechannels.113.3.3.1Commoncontroltypechannels,knownwhencombinedasacommoncontrolchannel(CCCH).113.3.3.2PacketCommoncontrolchannels(PCCCH).113.3.4Dedicatedcontrolchannels.123.3.4.1Circuitswitcheddedicatedcontrolchannels.123.3.4.2Packetdedicatedcontrolchannels.123.3.5CellBroadcastChannel(CBCH).123.3.6CTScontrolchannels.123.3.6.1CTSbeaconchannel(BCH).123.3.6.2CTSpagingchannel(CTSPCH).133.3.6.3CTSaccessrequestchannel(CTSARCH).133.3.6.4CTSaccessgrantchannel(CTSAGCH).133.4Combinationofchannels.134Thephysicalresource.134.1General.134.2Radiofrequencychannels.134.2.1Cellallocationandmobileallocation.134.2.2Downlinkanduplink.144.3TimeslotsandTDMAframes.144.3.1General.144.3.2Timeslotnumber.144.3.3TDMAframenumber.145Physicalchannels.145.1General.145.2Bursts.155.2.1General.155.2.2Typesofburstandbursttiming.155.2.3Normalburst(NB).155.2.4Frequencycorrectionburst(FB).175.2.5SynchronizationBurst(SB).185.2.6Dummyburst.185.2.7Accessburst(AB).185.2.8Guardperiod.19SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)4(GSM05.02version7.4.1Release1998)5.3Physicalchannelsandbursts.195.4Radiofrequencychannelsequence.195.5TimeslotandTDMAframesequence.195.6Parametersforchanneldefinitionandassignment.205.6.1General.205.6.2Generalparameters.205.6.3Specificparameters.206Mappingoflogicalchannelsontophysicalchannels.206.1General.206.2Mappinginfrequencyoflogicalchannelsontophysicalchannels.216.2.1General.216.2.2Parameters.216.2.3Hoppingsequencegeneration.226.2.4Specificcases.236.2.5Changeinthefrequencyallocationofabasetransceiverstation.236.2.6FrequencyassignmentinCTS.236.3Mappingintimeoflogicalchannelsontophysicalchannels.236.3.1Mappingintimeofcircuitswitchedlogicalchannelsontophysicalchannels.236.3.1.1General.236.3.1.2Keytothemappingtableofclause7.246.3.1.3MappingofBCCHdata.246.3.1.4MappingofSIDFrames.256.3.2Mappingintimeofpacketlogicalchannelsontophysicalchannels.256.3.2.1General.256.3.2.2Mappingoftheuplinkchannels.266.3.2.2.1Mappingofuplinkpackettrafficchannel(PDTCH/U)andPACCH/U.266.3.2.2.2MappingofthePacketTimingAdvanceControlChannel(PTCCH/U).266.3.2.2.3MappingoftheuplinkPCCCHi.e.PRACH.266.3.2.3Mappingofthedownlinkchannels.266.3.2.3.1Mappingofthe(PDTCH/D)andPACCH/D.266.3.2.3.2MappingofthePTCCH/D.266.3.2.3.3MappingofthePBCCH.276.3.2.3.4MappingofthePCCCH.276.3.2.4MappingofPBCCHdata.276.3.3MappingintimeofCTScontrolchannelsontophysicalchannels.286.3.3.1CTSBCHtimeslotassignment.286.3.3.2CTSPCH,CTSARCHandCTSAGCHtimeslotassignment.306.4Permittedchannelcombinations.316.4.1Permittedchannelcombinationsontoabasicphysicalchannel.316.4.2Multislotconfigurations.316.4.2.1Multislotconfigurationsforcircuitswitchedconnections.326.4.2.2Multislotconfigurationsforpacketswitchedconnections.326.5Operationofchannelsandchannelcombinations.326.5.1General.326.5.2DeterminationofCCCH_GROUPandPAGING_GROUPforMSinidlemode.346.5.3Determinationofspecificpagingmultiframeandpagingblockindex.346.5.4ShortMessageServiceCellBroadcast(SMSCB).346.5.5Voicegroupandvoicebroadcastcallnotifications.356.5.6DeterminationofPCCCH_GROUPandPAGING_GROUPforMSinGPRSattachedmode.356.5.7DeterminationofCTS_PAGING_GROUPandspecificpaging52-multiframeforMSinCTSmode.36AnnexA(normative):Phase2mobilesinaPhase1infrastructure.54A.1Scope.54A.2ImplementationoptionsforTCHchannels.54A.2.1C0fillingontheTCH.54A.2.1.1Adummyburstwith(BN61,BN62,BN86)=trainingsequencebitsofnormalbursts.54A.2.1.2Adummyburstwiththe"C0fillingtrainingsequence.54A.2.1.3Adummyburstwith(BN61,BN62,BN86)mappedfromtheTSCbitsofnormalburstsaccordingtothetable;below.54A.2.1.4PartialSIDinformation.54SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)5(GSM05.02version7.4.1Release1998)A.2.2Halfburstfilling.55A.2.2.1PartialSIDinformationfromanyassociatedSIDframe;or.55A.2.2.2Themixedbitsofthedummybursts(encryptedornotencrypted).55A.2.3DummyburstStealingflag.55A.2.4HalfburstFillingStealingflag.55A.2.5Allowedcombinations.55A.3IdleChannels.55AnnexB(normative):Multislotcapability.56B.1MSclassesformultislotcapability.56B.2Constraintsimposedbytheserviceselected.58B.3NetworkrequirementsforsupportingMSmultislotclasses.58AnnexC(Informative):CTSBCHTimeslotshiftingexample.61AnnexD(informative):Changecontrolhistory.62History.63SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)6(GSM05.02version7.4.1Release1998)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).Thepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannelsofthedigitalmobilecellularandpersonalcommunicationsystemsoperatinginthe900MHzand1800MHzband(GSM900andDCS1800).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenberepublishedbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesrelease1998ofGSMPhase2+.xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:25August2000DateoflatestannouncementofthisEN(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)7(GSM05.02version7.4.1Release1998)1ScopeThepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannels.Itincludesadescriptionofthelogicalchannelsandthedefinitionoffrequencyhopping,TDMAframes,timeslotsandbursts.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]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[3]GSM04.03:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interfaceChannelstructuresandaccesscapabilities".[4]GSM04.06:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interfaceDataLink(DL)layerspecification".[5]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".[6]GSM05.03:"Digitalcellulartelecommunicationssystem(Phase2+);Channelcoding".[7]GSM05.04:"Digitalcellulartelecommunicationssystem;Modulation".[8]GSM05.05:"Digitalcellulartelecommunicationssystem(Phase2+);Radiotransmissionandreception".[9]GSM05.08:"Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemlinkcontrol".[10]GSM05.10:"Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemsynchronization".[11]GSM03.64:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);OveralldescriptionoftheGPRSRadioInterface;Stage2".[12]GSM04.60:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);MobileStation(MS)-BaseStationSystem(BSSinterface;RadioLinkControl(RLC)andMediumAccessControl(MAC)LayerSpecification".[13]GSM03.52:"Digitalcellulartelecommunicationssystem(Phase2+);GSMCordlessTelephonySystem(CTS),Phase1;LowerlayersoftheCTSRadioInterface;Stage2".SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)8(GSM05.02version7.4.1Release1998)[14]GSM04.56:"Digitalcellulartelecommunicationssystem(Phase2+);GSMCordlessTelephonySystem(CTS),Phase1;CTSradiointerfacelayer3specification".[15]GSM05.56:"Digitalcellulartelecommunicationssystem(Phase2+);GSMCordlessTelephonySystem(CTS),Phase1;CTS-FPradiosubsystem".1.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04[1].2GeneralTheradiosubsystemisrequiredtosupportacertainnumberoflogicalchannelsthatcanbeseparatedintotwocategoriesasdefinedinGSM04.03:i)thetrafficchannels(TCH's);ii)thecontrolchannels.Moreinformationisgivenabouttheselogicalchannelsinclause3whichalsodefinesanumberofspecialchannelsusedbytheradiosub-system.Clause4ofthepresentdocumentdescribesthephysicalresourceavailabletotheradiosub-system,clause5definesphysicalchannelsbasedonthatresourceandclause6specifieshowthelogicalchannelsshallbemappedontophysicalchannels.Figure1depictsthisprocess.3Logicalchannels3.1GeneralThissubclausedescribesthelogicalchannelsthataresupportedbytheradiosubsystem.3.2Trafficchannels3.2.1GeneralTrafficchannels(TCH's)areintendedtocarryeitherencodedspeechoruserdataincircuitswitchedmode.Twogeneralformsoftrafficchannelaredefined:i)Fullratetrafficchannel(TCH/F).Thischannelcarriesinformationatagrossrateof22,8kbit/s;ii)Halfratetrafficchannel(TCH/H).Thischannelcarriesinformationatagrossrateof11,4kbit/s.Packetdatatrafficchannels(PDTCH's)areintendedtocarryuserdatainpacketswitchedmode.ForthepurposeofthisEN,anyreferencetotrafficchanneldoesnotapplytoPDTCHunlessexplicitlystated.Alltrafficchannelsarebi-directionalunlessotherwisestated.Unidirectionaldownlinkfullratechannels,TCH/FD,aredefinedasthedownlinkpartofthecorrespondingTCH/F.MultiplefullratechannelscanbeallocatedtothesameMS.Thisisreferredtoasmultislotconfigurations,whichisdefinedinsubclause6.4.2.1.MultiplepacketdatatrafficchannelscanbeallocatedtothesameMS.Thisisreferredtoasmultislotpacketconfigurations,asdefinedinsubclause6.4.2.2.Thespecifictrafficchannelsavailableinthecategoriesofspeechanduserdataaredefinedinthesubclausesfollowing.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)9(GSM05.02version7.4.1Release1998)3.2.2SpeechtrafficchannelsThefollowingtrafficchannelsaredefinedtocarryencodedspeech:i)Fullratetrafficchannelforspeech(TCH/FS);ii)Halfratetrafficchannelforspeech(TCH/HS);iii)Enhancedfullratetrafficchannelforspeech(TCH/EFS);iv)Adaptivefullratetrafficchannelforspeech(TCH/AFS);v)Adaptivehalfratetrafficchannelforspeech(TCH/AHS).3.2.3CircuitswitcheddatatrafficchannelsThefollowingtrafficchannelsaredefinedtocarryuserdata:i)Fullratetrafficchannelfor9,6kbit/suserdata(TCH/F9.6);ii)Fullratetrafficchannelfor4,8kbit/suserdata(TCH/F4.8);iii)Halfratetrafficchannelfor4,8kbit/suserdata(TCH/H4.8);iv)Halfratetrafficchannelfor≤2,4kbit/suserdata(TCH/H2.4);v)Fullratetrafficchannelfor≤2,4kbit/suserdata(TCH/F2.4);vi)Fullratetrafficchannelfor14,4kbit/suserdata(TCH/F14.4).3.2.4Packetdatatrafficchannels(PDTCH)APDTCHcorrespondstotheresourceallocatedtoasingleMSononephysicalchannelforuserdatatransmission.Duetothedynamicmultiplexingontothesamephysicalchannelofdifferentlogicalchannels(seesubclause6.3.2),aPDTCHcarriesinformationataninstantaneousbitraterangingfrom0to22.8kbit/s.Allpacketdatatrafficchannelsareuni-directional,eitheruplink(PDTCH/U),foramobileoriginatedpackettransferordownlink(PDTCH/D)foramobileterminatedpackettransfer.3.3Controlchannels3.3.1GeneralControlchannelsareintendedtocarrysignallingorsynchronizationdata.Fourcategoriesofcontrolchannelaredefined:broadcast,common,dedicatedandCTScontrolchannels.Specificchannelswithinthesecategoriesaredefinedinthesubclausesfollowing.3.3.2Broadcastchannels3.3.2.1Frequencycorrectionchannel(FCCH)Thefrequencycorrectionchannelcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)10(GSM05.02version7.4.1Release1998)3.3.2.2Synchronizationchannel(SCH)Thesynchronizationchannelcarriesinformationforframesynchronizationofthemobilestationandidentificationofabasetransceiverstation.Itisrequiredonlyfortheoperationoftheradiosub-system.Specificallythesynchronizationchannelshallcontaintwoencodedparameters:a)Basetransceiverstationidentitycode(BSIC):6bits(beforechannelcoding)consistsof3bitsofPLMNcolourcodewithrange0to7and3bitsofBScolourcodewithrange0to7asdefinedinGSM03.03.b)ReducedTDMAframenumber(RFN):19bits(beforechannelcoding)=T1(11bits)range0to2047=FNdiv(26x51)T2(5bits)range0to25=FNmod26T3'(3bits)range0to4=(T3-1)div10whereT3(6bits)range0to50=FNmod51andFN=TDMAframenumberasdefinedinsubclause4.3.3.GSM04.06andGSM04.08specifytheprecisebitordering,GSM05.03thechannelcodingoftheaboveparametersandGSM05.10defineshowtheTDMAframenumbercanbecalculatedfromT1,T2,andT3'.3.3.2.3Broadcastcontrolchannel(BCCH)Thebroadcastcontrolchannelbroadcastsgeneralinformationonabasetransceiverstationperbasetransceiverstationbasis.OfthemanyparameterscontainedintheBCCH,theuseofthefollowingparameters,asdefinedinGSM04.08arereferredtoinsubclause6.5:a)CCCH_CONFwhichindicatestheorganizationofthecommoncontrolchannels:Fromthisparameter,thenumberofcommoncontrolchannels(BS_CC_CHANS)andwhetherornotCCCHorSDCCHarecombined(BS_CCCH_SDCCH_COMB=trueorfalse)arederivedasfollows:CCCH_CONFBS_CC_CHANSBS_CCCH_SDCCH_COMB0001false0011true0102false1003false1104falseb)BS_AG_BLKS_RESwhichindicatesthenumberofblocksoneachcommoncontrolchannelreservedforaccessgrantmessages:3bits(beforechannelcoding)range0to7.c)BS_PA_MFRMSwhichindicatesthenumberof51-multiframesbetweentransmissionofpagingmessagestomobilesofthesamepaginggroup:3bits(beforechannelcoding)range2to9.d)supportofGPRS:TheBCCHshallindicatewhetherornotpacketswitchedtrafficissupported.IfpacketswitchedtrafficissupportedandifthePBCCHexists,thentheBCCHshallbroadcastthepositionofthepacketdatachannel(PDCH),asdefinedinsubclause6.3.2.1,carryingthePBCCH.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)11(GSM05.02version7.4.1Release1998)3.3.2.4PacketBroadcastControlChannel(PBCCH)ThePBCCHbroadcastsparametersusedbytheMStoaccessthenetworkforpackettransmissionoperation.InadditiontothoseparametersthePBCCHreproducestheinformationtransmittedontheBCCHtoallowcircuitswitchedoperation,suchthataMSinGPRSattachedmodemonitorsthePBCCHonly,ifitexists.TheexistenceofthePBCCHinthecellisindicatedontheBCCH.IntheabsenceofPBCCH,theBCCHshallbeusedtobroadcastinformationforpacketoperation.OfthemanyparameterscontainedinthePBCCH,theuseofthefollowingparameters,asdefinedinGSM04.60arereferredtoinsubclause6.5and6.3.2:a)BS_PBCCH_BLKS(1,.,4)indicatesthenumberofblocksallocatedtothePBCCHinthemultiframe.ThepositionofthePBCCHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.b)BS_PCC_CHANSindicatesthenumberofphysicalchannelscarryingPCCCHsincludingthephysicalchannelcarryingthePBCCH.c)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachPDCHcarryingPCCCHpermultiframewhereneitherpacketpagingnorPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforPAGCH,PNCH,PDTCHandPACCH.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytothePRACHchannelonanyPDCHcarryingPCCCH.ThepositionofthePRACHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.3.3.3Commoncontroltypechannels3.3.3.1Commoncontroltypechannels,knownwhencombinedasacommoncontrolchannel(CCCH)i)Pagingchannel(PCH):Downlinkonly,usedtopagemobiles.ii)Randomaccesschannel(RACH):Uplinkonly,usedtorequestallocationofaSDCCH.iii)Accessgrantchannel(AGCH):Downlinkonly,usedtoallocateaSDCCHordirectlyaTCH.iv)Notificationchannel(NCH):Downlinkonly,usedtonotifymobilestationsofvoicegroupandvoicebroadcastcalls.3.3.3.2PacketCommoncontrolchannels(PCCCH)i)PacketPagingchannel(PPCH):Downlinkonly,usedtopageMS.ii)PacketRandomaccesschannel(PRACH):Uplinkonly,usedtorequestallocationofoneorseveralPDTCHs(foruplinkordownlinkdirection).iii)PacketAccessgrantchannel(PAGCH):Downlinkonly,usedtoallocateoneorseveralPDTCH.iv)PacketNotificationchannel(PNCH):Downlinkonly,usedtonotifyMSofPTM-Mcall.IfaPCCCHisnotallocated,theinformationforpacketswitchedoperationistransmittedontheCCCH.IfaPCCCHisallocated,itmaytransmitinformationforcircuitswitchedoperation.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)12(GSM05.02version7.4.1Release1998)3.3.4Dedicatedcontrolchannels3.3.4.1Circuitswitcheddedicatedcontrolchannelsi)Slow,TCH/Fassociated,controlchannel(SACCH/TF).ii)Fast,TCH/Fassociated,controlchannel(FACCH/F).iii)Slow,TCH/Hassociated,controlchannel(SACCH/TH).iv)Fast,TCH/Hassociated,controlchannel(FACCH/H).v)Standalonededicatedcontrolchannel(SDCCH/8).vi)Slow,SDCCH/8associated,controlchannel(SACCH/C8)vii)Standalonededicatedcontrolchannel,combinedwithCCCH(SDCCH/4).viii)Slow,SDCCH/4associated,controlchannel(SACCH/C4).ix)slow,TCH/Fassociated,controlchannelformultislotconfigurations(SACCH/M).x)slow,TCH/Fassociated,controlchannelforCTS(SACCH/CTS).Allassociatedcontrolchannelshavethesamedirection(bi-directionalorunidirectional)asthechannelstheyareassociatedto.TheunidirectionalSACCH/MDisdefinedasthedownlinkpartofSACCH/M.3.3.4.2Packetdedicatedcontrolchannelsi)ThePacketAssociatedControlchannel(PACCH):ThePACCHisbi-directional.FordescriptionpurposesPACCH/UisusedfortheuplinkandPACCH/Dforthedownlink.ii)PacketTimingadvancecontrolchanneluplink(PTCCH/U):UsedtotransmitrandomaccessburststoallowestimationofthetimingadvanceforoneMSinpackettransfermode.iii)PacketTimingadvancecontrolchanneldownlink(PTCCH/D):UsedtotransmittimingadvanceupdatesforseveralMS.OnePTCCH/DispairedwithseveralPTCCH/U's.3.3.5CellBroadcastChannel(CBCH)TheCBCH,downlinkonly,isusedtocarrytheshortmessageservicecellbroadcast(SMSCB).TheCBCHusesthesamephysicalchannelastheSDCCH.3.3.6CTScontrolchannelsFourtypesofCTScontrolchannelsaredefined.3.3.6.1CTSbeaconchannel(BCH)TheBCHisusedtoprovidefrequencyandsynchronizationinformationinthedownlink.ItismadeupofapairofCTSBCH-SB(Synchronizationburst)andCTSBCH-FB(Frequencycorrectionburst).TheCTSBCH-FBcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)13(GSM05.02version7.4.1Release1998)TheCTSBCH-SBcarriessignallinginformationandidentificationofaCTS-FP.SpecificallytheCTSBCH-SBshallcontainfiveencodedparameters:a)StatusoftheCTS-FPradioresources:1bit(beforechannelcoding).b)FlagindicatingthepresenceofCTSPCHinthenext52-multiframe:1bit(beforechannelcoding)c)FlagindicatingwhethertheCTS-FPiscurrentlyperformingtimeslotshiftingonCTSBCH:1bit(beforechannelcoding).d)CTScontrolchannels(exceptCTSBCH)timeslotnumberforthenext52-multiframe(TNC):3bits(beforechannelcoding).e)CTS-FPbeaconidentity(FPBI):19bits(beforechannelcoding),asdefinedinGSM03.03.GSM04.56specifiestheprecisebitorderingandGSM05.03thechannelcodingoftheaboveparameters.3.3.6.2CTSpagingchannel(CTSPCH)Downlinkonly,usedtobroadcastinformationforpaging.3.3.6.3CTSaccessrequestchannel(CTSARCH)Uplinkonly,usedtorequestallocationofadedicatedRRconnection.3.3.6.4CTSaccessgrantchannel(CTSAGCH)Downlinkonly,usedtograntadedicatedRRconnection.3.4CombinationofchannelsOnlycertaincombinationsofchannelsareallowedasdefinedinGSM04.03.Subclause6.4liststhecombinationsinrelationtobasicphysicalchannels.4Thephysicalresource4.1GeneralThephysicalresourceavailabletotheradiosub-systemisanallocationofpartoftheradiospectrum.Thisresourceispartitionedbothinfrequencyandtime.Frequencyispartitionedbyradiofrequencychannels(RFCHs)dividedintobandsasdefinedinGSM05.05.TimeispartitionedbytimeslotsandTDMAframesasdefinedinsubclause4.3ofthepresentdocument.4.2Radiofrequencychannels4.2.1CellallocationandmobileallocationGSM05.05definesradiofrequencychannels(RFCHs),andallocatesnumberstoalltheradiofrequencychannelsavailabletothesystem.Eachcellisallocatedasubsetofthesechannels,definedasthecellallocation(CA).OneradiofrequencychannelofthecellallocationshallbeusedtocarrysynchronizationinformationandtheBCCH,thisshallbeknownasBCCHcarrier.Thesubsetofthecellallocation,allocatedtoaparticularmobile,shallbeknownasthemobileallocation(MA).SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)14(GSM05.02version7.4.1Release1998)4.2.2DownlinkanduplinkThedownlinkcomprisesradiofrequencychannelsusedinthebasetransceiverstationtoMobileStationdirection.Theuplinkcomprisesradiofrequencychannelsusedinthemobilestationtobasetransceiverstationdirection.4.3TimeslotsandTDMAframes4.3.1GeneralAtimeslotshallhaveadurationof3/5200seconds(≈577µs).EighttimeslotsshallformaTDMAframe(≈4,62msinduration).AtthebasetransceiverstationtheTDMAframesonalloftheradiofrequencychannelsinthedownlinkshallbealigned.Thesameshallapplytotheuplink(seeGSM05.10).AtthebasetransceiverstationthestartofaTDMAframeontheuplinkisdelayedbythefixedperiodof3timeslotsfromthestartoftheTDMAframeonthedownlink(seefigure2).Atthemobilestationthisdelaywillbevariabletoallowadjustmentforsignalpropagationdelay.TheprocessofadjustingthisadvanceisknownasadaptiveframealignmentandisdetailedinGSM05.10.ThestaggeringofTDMAframesusedinthedownlinkanduplinkisinordertoallowthesametimeslotnumbertobeusedinthedownlinkanduplinkwhilstavoidingtherequirementforthemobilestationtotransmitandreceivesimultaneously.Theperiodincludestimeforadaptiveframealignment,transceivertuningandreceive/transmitswitching(seefigure4).4.3.2TimeslotnumberThetimeslotswithinaTDMAframeshallbenumberedfrom0to7andaparticulartimeslotshallbereferredtobyitstimeslotnumber(TN).4.3.3TDMAframenumberTDMAframesshallbenumberedbyaframenumber(FN).Theframenumbershallbecyclicandshallhavearangeof0toFN_MAXwhereFN_MAX=(26x51x2048)-1=2715647asdefinedinGSM05.10.TheframenumbershallbeincrementedattheendofeachTDMAframe.ThecompletecycleofTDMAframenumbersfrom0toFN_MAXisdefinedasahyperframe.Ahyperframeconsistsof2048superframeswhereasuperframeisdefinedas26x51TDMAframes.A26-multiframe,comprising26TDMAframes,isusedtosupporttrafficandassociatedcontrolchannelsanda51-multiframe,comprising51TDMAframes,isusedtosupportbroadcast,commoncontrolandstandalonededicatedcontrol(andtheirassociatedcontrol)channels.Henceasuperframemaybeconsideredas51traffic/associatedcontrolmultiframesor26broadcast/commoncontrolmultiframes.A52-multiframe,comprisingtwo26-multiframes,isusedtosupportpacketdatatrafficandcontrolchannels.TheneedforahyperframeofasubstantiallylongerperiodthanasuperframearisesfromtherequirementsoftheencryptionprocesswhichusesFNasaninputparameter.5Physicalchannels5.1GeneralAphysicalchannelusesacombinationoffrequencyandtimedivisionmultiplexingandisdefinedasasequenceofradiofrequencychannelsandtimeslots.Thecompletedefinitionofaparticularphysicalchannelconsistsofadescriptioninthefrequencydomain,andadescriptioninthetimedomain.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)15(GSM05.02version7.4.1Release1998)Thedescriptioninthefrequencydomainisaddressedinsubclause5.4,thedescriptioninthetimedomainisaddressedinsubclause5.5.5.2Bursts5.2.1GeneralAburstisaperiodofR.Fcarrierwhichismodulatedbyadatastream.Aburstthereforerepresentsthephysicalcontentofatimeslot.5.2.2TypesofburstandbursttimingAtimeslotisdividedinto156,25bitperiods.Aparticularbitperiodwithinatimeslotisreferencedbyabitnumber(BN),withthefirstbitperiodbeingnumbered0,andthelast(1/4)bitperiodbeingnumbered156.Inthesubclausesfollowingthetransmissiontimingofaburstwithinatimeslotisdefinedintermsofbitnumber.Thebitwiththelowestbitnumberistransmittedfirst.Differenttypesofburstexistinthesystem.Onecharacteristicofaburstisitsusefulduration.Thepresentdocument,inthesubclausesfollowing,definesfourfullburstsof147bitsusefulduration,andoneshortburstof87bitsusefulduration.Theusefulpartofaburstisdefinedasbeginningfromhalfwaythroughbitnumber0.ThedefinitionoftheusefulpartofaburstneedstobeconsideredinconjunctionwiththerequirementsplacedonthephaseandamplitudecharacteristicsofaburstasspecifiedinGSM05.04and05.05.Theperiodbetweenburstsappearinginsuccessivetimeslotsistermedtheguardperiod.Subclause5.2.8detailsconstraintswhichrelatetotheguardperiod.5.2.3Normalburst(NB)NormalburstforGMSKBitNumber(BN)LengthoffieldContentsoffieldDefinition0-23tailbits(below)3-6058encryptedbits(e0.e57)05.0361-8626trainingsequencebits(below)87-14458encryptedbits(e58.e115)05.03145-1473tailbits(below)(148-1568,25guardperiod(bits)subclause5.2.8)-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows:(BN0,BN1,BN2)=(0,0,0)and(BN145,BN146,BN147)=(0,0,0)-wherethe"trainingsequencebits"aredefinedasmodulatingbitswithstatesasgiveninthefollowingtableaccordingtothetrainingsequencecode,TSC.Forbroadcastandcommoncontrolchannels,theTSCmustbeequaltotheBCC,asdefinedinGSM03.03andasdescribedinthistechnicalspecificationinsubclause3.3.2.InnetworkssupportingE-OTDLocationservices(seeGSM03.71AnnexC),theTSCshallbeequaltotheBCCforallnormalburstsonBCCHfrequencies.-ForCTScontrolchannels,theTSCshallbedefinedbythe3LSBs(BN3,BN2,BN1)oftheFPBI(specifiedinGSM03.03).SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)16(GSM05.02version7.4.1Release1998)TrainingTrainingsequencebitsSequence(BN61,BN62.BN86)Code(TSC)0(0,0,1,0,0,1,0,1,1,1,0,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1)1(0,0,1,0,1,1,0,1,1,1,0,1,1,1,1,0,0,0,1,0,1,1,0,1,1,1)2(0,1,0,0,0,0,1,1,1,0,1,1,1,0,1,0,0,1,0,0,0,0,1,1,1,0)3(0,1,0,0,0,1,1,1,1,0,1,1,0,1,0,0,0,1,0,0,0,1,1,1,1,0)4(0,0,0,1,1,0,1,0,1,1,1,0,0,1,0,0,0,0,0,1,1,0,1,0,1,1)5(0,1,0,0,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,0,1,1,1,0,1,0)6(1,0,1,0,0,1,1,1,1,1,0,1,1,0,0,0,1,0,1,0,0,1,1,1,1,1)7(1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0)Undercertaincircumstancesonlyhalftheencryptedbitspresentinanormalburstwillcontaincompleteinformation.FordownlinkDTXoperationonTCH-FSandTCH-HS,whenatrafficframe(asdefinedinGSM06.31)isscheduledfortransmissionandoneofitsadjacenttrafficframesisnotscheduledfortransmission,theotherhalfoftheencryptedbitsinthenormalburstsassociatedwiththescheduledtrafficframeshallcontainpartialSIDinformationfromanyassociatedSIDframe,withtheappropriatestealingflagsBN60orBN87setto0.Inothercasesthebinarystateoftheremainingbitsisnotspecified.Normalburstfor8PSKNormalburstfor8-PSKisspecifiedhereforreferencepurposesonly.8-PSKmodulatedburstsarenotusedinnetworkssupportingRelease98.TheburstisanywayspecifiedheretomakesurethatRelease98mobilessupportingE-OTDLCSwillbeabletodomeasurementson8-PSKmodulatedbursts.BitNumber(BN)Lengthoffield(bits)ContentsoffieldDefinition0–89tailbits(below)9–182174encryptedbits(e0.e173)Undefined183–26078trainingsequencebits(below)261–434174encryptedbits(e174.e347)Undefined435–4439tailbits(below)444-46824.75guardperiodSubclause5.2.8-wherethe"tailbits"aredefinedasmodulatingbitswithstatesasfollows(bitsaregroupedinsymbolsseparatedby;):(BN0,BN1.BN8)=(1,1,1;1,1,1;1,1,1)and(BN435,BN436.BN443)=(1,1,1;1,1,1;1,1,1)-wherethe"trainingsequencebits"aredefinedasmodulatingbitswithstatesasgiveninthefollowingtableaccordingtothetrainingsequencecode,TSC.Forbroadcastandcommoncontrolchannels,theTSCmustbeequaltotheBCC,asdefinedinGSM03.03andasdescribedinthistechnicalspecificationinsubclause3.3.2.InnetworkssupportingE-OTDLocationservices(seeGSM03.71AnnexC),theTSCshallbeequaltotheBCCforallnormalburstsonBCCHfrequencies.SIST EN 300 908 V7.4.1:2003

ETSIETSIEN300908V7.4.1(2000-09)17(GSM05.02version7.4.1Release1998)TrainingTrainingsequencesymbolsSequence(BN183,BN184.BN260)Code(TSC)0(1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1)1(1,1,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1)2(1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1)3(1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;1,1,1)4(1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;1,1,1;1,1,1;1,1,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1)5(1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1;0,0,1;0,0,1;1,1,1;1,1,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;1,1,1)6(0,0,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;0,0,1;1,1,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;0,0,1)7(0,0,1;0,0,1;0,0,1;1,1,1;0,0,1;0,0,1;0,0,1;0,0,1;1,1,1;1,1,1;1,1,1;0,0,1;1,1,1;1,1,1;0
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