SIST EN 300 908 V8.3.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 8.3.1 Release 1999)
General Information
- Abstract
CRs 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
Overview
SIST EN 300 908 V8.3.1:2003 defines the multiplexing and multiple access mechanisms on the radio path for the Global System for Mobile Communications (GSM) Phase 2+. As an identical adoption of EN 300 908 v8.3.1, this Slovenian standard details physical channel structuring, logical-to-physical channel mapping, and practical aspects of how digital cellular telecommunication systems efficiently share radio spectrum. The standard is fundamental for supporting modern GSM networks, ensuring interoperability and efficient use of radio resources.
Key Topics
- Logical Channels: Specifies traffic and control channel types, including speech, data, and packet data channels (such as TCH/FS, TCH/F9.6, PDTCH, BCCH, SDCCH, SCH, PBCCH, PCCCH, and others) essential for GSM mobile services.
- Physical Channels: Defines how logical channels map dynamically to physical resources; covers timeslots, TDMA frame structures, frequency hopping, bursts, and multislot configurations.
- Multiplexing and Multiple Access: Outlines time-division multiple access (TDMA) frameworks which enable multiple users to share common radio frequencies and describes frequency assignment and hopping methods for efficient spectrum utilization.
- Control and Broadcast Channels: Covers how signaling, synchronization, cell broadcast, paging, and network access functions are realized via channels like BCCH, PBCCH, and various control channel groupings.
- GPRS and Packet Services: Introduces packet channels and control strategies for integrating General Packet Radio Service (GPRS) within GSM, enabling higher data rates and flexible user access.
- Cordless Telephony Support: Details provisions for GSM Cordless Telephony System (CTS), supporting advanced voice and data use cases in private networks.
Applications
This standard is critical for:
- Network Design and Deployment: Ensures reliable allocation of frequency and timeslot resources in GSM cellular infrastructure planning, including both macro and microcell environments.
- Base Station and Mobile Equipment Development: Provides equipment manufacturers with essential guidelines for radio interface compatibility, supporting multi-vendor environments and seamless device-network interaction.
- Service Providers: Facilitates efficient network operation, allowing the management of both circuit- and packet-switched services (including voice, SMS, GPRS, and cell broadcast) over a unified architecture.
- Interoperability: Supports international roaming and cross-vendor interoperation through compliance with globally harmonized channel and access specifications.
- Next-Generation Mobile Services: Lays the foundation for enhanced features such as high-capacity multislot configurations and advanced control channel arrangements, pivotal for data-driven GSM evolution.
Related Standards
SIST EN 300 908 V8.3.1:2003 references and complements a number of key GSM and ETSI standards, including:
- GSM 01.04: Abbreviations and acronyms
- GSM 03.03: Numbering, addressing, and identification
- GSM 04.03/04.06/04.08: Mobile Station-Base Station System (MS-BSS) interface specifications
- 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 & 04.60: GPRS radio interface and protocols
- GSM 03.52, 04.56, 05.56: GSM Cordless Telephony System (CTS) specifications
Practical Value
SIST EN 300 908 V8.3.1:2003 is essential for any stakeholder in digital mobile networks, including mobile operators, equipment vendors, network designers, and software developers implementing GSM infrastructure or services. Adherence to this standard ensures efficient multiplexing, optimal spectrum use, and robust mobile service delivery, underpinning global mobile communications.
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Frequently Asked Questions
SIST EN 300 908 V8.3.1:2003 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 8.3.1 Release 1999)". This standard covers: CRs SMG#31
CRs SMG#31
SIST EN 300 908 V8.3.1:2003 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 V8.3.1:2003 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 8.3.1 Release 1999)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 908 Version 8.3.1SIST EN 300 908 V8.3.1:2003en01-december-2003SIST EN 300 908 V8.3.1:2003SLOVENSKI
STANDARD
ETSIEN300908V8.3.1(2000-09)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Multiplexingandmultipleaccessontheradiopath(GSM05.02version8.3.1Release1999)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)2(GSM05.02version8.3.1Release1999)ReferenceREN/SMG-020502Q8R1KeywordsDigitalcellulartelecommunicationssystem,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 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)3(GSM05.02version8.3.1Release1999)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.93.3.2.1Frequencycorrectionchannels(FCCHandCFCCH).93.3.2.2Synchronizationchannels.103.3.2.2.1Synchronizationchannel(SCH).103.3.2.2.2COMPACTsynchronizationchannel(CSCH).103.3.2.3Broadcastcontrolchannel(BCCH).113.3.2.4PacketBroadcastControlChannels.113.3.2.4.1PacketBroadcastControlChannel(PBCCH).113.3.2.4.2COMPACTPacketBroadcastControlChannel(CPBCCH).123.3.3Commoncontroltypechannels.123.3.3.1Commoncontroltypechannels,knownwhencombinedasacommoncontrolchannel(CCCH).123.3.3.2PacketCommoncontrolchannels.123.3.3.2.1PacketCommonControlChannels(PCCCH).123.3.3.2.2COMPACTCommonControlChannels(CPCCCH).133.3.4Dedicatedcontrolchannels.133.3.4.1Circuitswitcheddedicatedcontrolchannels.133.3.4.2Packetdedicatedcontrolchannels.133.3.5CellBroadcastChannel(CBCH).133.3.6CTScontrolchannels.133.3.6.1CTSbeaconchannel(BCH).143.3.6.2CTSpagingchannel(CTSPCH).143.3.6.3CTSaccessrequestchannel(CTSARCH).143.3.6.4CTSaccessgrantchannel(CTSAGCH).143.4Combinationofchannels.144Thephysicalresource.144.1General.144.2Radiofrequencychannels.154.2.1Cellallocationandmobileallocation.154.2.2Downlinkanduplink.154.3Timeslots,TDMAframes,andtimegroups.154.3.1General.154.3.2Timeslotnumber.154.3.3TDMAframenumber.164.3.4Timegroup.165Physicalchannels.165.1General.165.2Bursts.165.2.1General.16SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)4(GSM05.02version8.3.1Release1999)5.2.2Typesofburstandbursttiming.175.2.3Normalburst(NB).175.2.4Frequencycorrectionburst(FB).195.2.5SynchronizationBurst(SB).195.2.6Dummyburst.205.2.7Accessburst(AB).205.2.8Guardperiod.215.3Physicalchannelsandbursts.215.4Radiofrequencychannelsequence.215.5TimeslotandTDMAframesequence.215.6Parametersforchanneldefinitionandassignment.225.6.1General.225.6.2Generalparameters.225.6.3Specificparameters.226Mappingoflogicalchannelsontophysicalchannels.226.1General.226.2Mappinginfrequencyoflogicalchannelsontophysicalchannels.236.2.1General.236.2.2Parameters.236.2.3Hoppingsequencegeneration.246.2.4Specificcases.256.2.5Changeinthefrequencyallocationofabasetransceiverstation.256.2.6FrequencyassignmentinCTS.256.3Mappingintimeoflogicalchannelsontophysicalchannels.266.3.1Mappingintimeofcircuitswitchedlogicalchannelsontophysicalchannels.266.3.1.1General.266.3.1.2Keytothemappingtableofclause7.266.3.1.3MappingofBCCHdata.266.3.1.4MappingofSIDFrames.286.3.2Mappingintimeofpacketlogicalchannelsontophysicalchannels.286.3.2.1General.286.3.2.2Mappingoftheuplinkchannels.286.3.2.2.1Mappingofuplinkpackettrafficchannel(PDTCH/U)andPACCH/U.286.3.2.2.2MappingofthePacketTimingAdvanceControlChannel(PTCCH/U).296.3.2.2.3MappingoftheuplinkPCCCHi.e.PRACH.296.3.2.2.3aMappingoftheCOMPACTuplinkCPCCCHi.e.CPRACH.296.3.2.3Mappingofthedownlinkchannels.296.3.2.3.1Mappingofthe(PDTCH/D)andPACCH/D.296.3.2.3.2MappingofthePTCCH/D.296.3.2.3.3MappingofthePBCCH.296.3.2.3.3aMappingoftheCOMPACTCPBCCH.306.3.2.3.4MappingofthePCCCH.306.3.2.3.4aMappingoftheCOMPACTCPCCCH.306.3.2.4MappingofPBCCHdata.306.3.2.4aMappingofCOMPACTCPBCCHdata.316.3.3MappingintimeofCTScontrolchannelsontophysicalchannels.316.3.3.1CTSBCHtimeslotassignment.316.3.3.2CTSPCH,CTSARCHandCTSAGCHtimeslotassignment.346.4Permittedchannelcombinations.346.4.1Permittedchannelcombinationsontoabasicphysicalchannel.346.4.2Multislotconfigurations.356.4.2.1Multislotconfigurationsforcircuitswitchedconnections.356.4.2.2Multislotconfigurationsforpacketswitchedconnections.356.5Operationofchannelsandchannelcombinations.366.5.1General.366.5.2DeterminationofCCCH_GROUPandPAGING_GROUPforMSinidlemode.386.5.3Determinationofspecificpagingmultiframeandpagingblockindex.386.5.4ShortMessageServiceCellBroadcast(SMSCB).396.5.5Voicegroupandvoicebroadcastcallnotifications.396.5.6DeterminationofPCCCH_GROUPandPAGING_GROUPforMSinGPRSattachedmode.406.5.7DeterminationofCTS_PAGING_GROUPandspecificpaging52-multiframeforMSinCTSmode.41SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)5(GSM05.02version8.3.1Release1999)AnnexA(normative):Phase2mobilesinaPhase1infrastructure.61A.1Scope.61A.2ImplementationoptionsforTCHchannels.61A.2.1C0fillingontheTCH.61A.2.1.1Adummyburstwith(BN61,BN62,BN86)=trainingsequencebitsofnormalbursts.61A.2.1.2Adummyburstwiththe"C0fillingtrainingsequence.61A.2.1.3Adummyburstwith(BN61,BN62,BN86)mappedfromtheTSCbitsofnormalburstsaccordingtothetable;below.61A.2.1.4PartialSIDinformation.61A.2.2Halfburstfilling.61A.2.2.1PartialSIDinformationfromanyassociatedSIDframe;or.62A.2.2.2Themixedbitsofthedummybursts(encryptedornotencrypted).62A.2.3DummyburstStealingflag.62A.2.4HalfburstFillingStealingflag.62A.2.5Allowedcombinations.62A.3IdleChannels.62AnnexB(normative):Multislotcapability.63B.1MSclassesformultislotcapability.63B.2Constraintsimposedbytheserviceselected.65B.3NetworkrequirementsforsupportingMSmultislotclasses.65AnnexC(informative):CTSBCHTimeslotshiftingexample.68AnnexD(informative):COMPACTmultiframestructureexamples.69AnnexE(informative):Changecontrolhistory.77History.79SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)6(GSM05.02version8.3.1Release1999)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).Thepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannelsofthedigitalmobilecellularandpersonalcommunicationsystemsoperatinginthe900MHzand1800MHzband(GSM900andDCS1800).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenberepublishedbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version8.x.ywhere:8indicatesrelease1999ofGSMPhase2+.xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthepresentdocument:25August2000Dateoflatestannouncementofthepresentdocument(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthepresentdocument(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)7(GSM05.02version8.3.1Release1999)1ScopeThepresentdocumentdefinesthephysicalchannelsoftheradiosub-systemrequiredtosupportthelogicalchannels.Itincludesadescriptionofthelogicalchannelsandthedefinitionoffrequencyhopping,TDMAframes,timeslotsandbursts.1.1References• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1999document,referencestoGSMdocumentsareforRelease1999versions(version8.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".[14]GSM04.56:"Digitalcellulartelecommunicationssystem(Phase2+);GSMCordlessTelephonySystem(CTS),Phase1;CTSradiointerfacelayer3specification".SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)8(GSM05.02version8.3.1Release1999)[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.3Logicalchannels3.1GeneralThisclausedescribesthelogicalchannelsthataresupportedbytheradiosubsystem.3.2Trafficchannels3.2.1GeneralTrafficchannels(TCH's)areintendedtocarryeitherencodedspeechoruserdataincircuitswitchedmode.Twogeneralformsoftrafficchannelaredefined:i)Fullratetrafficchannel(TCH/F).Thischannelcarriesinformationatagrossrateof22,8kbit/s.ii)Halfratetrafficchannel(TCH/H).Thischannelcarriesinformationatagrossrateof11,4kbit/s.iii)Enhancedcircuitswitchedfullratetrafficchannel(E-TCH/F).Thischannelcarriesinformationatagrossrateof69,6kbit/sincludingthestealingsymbols.Packetdatatrafficchannels(PDTCH's)areintendedtocarryuserdatainpacketswitchedmode.Forthepurposeofthepresentdocument,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 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)9(GSM05.02version8.3.1Release1999)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).vii)Enhancedcircuitswitchedfullratetrafficchannelfor28,8kbit/suserdata(E-TCH/F28.8)viii)Enhancedcircuitswitchedfullratetrafficchannelfor32,0kbit/suserdata(E-TCH/F32.0)ix)Enhancedcircuitswitchedfullratetrafficchannelfor43.2kbit/suserdata(E-TCH/F43.2)3.2.4Packetdatatrafficchannels(PDTCH)APDTCHcorrespondstotheresourceallocatedtoasingleMSononephysicalchannelforuserdatatransmission.Duetothedynamicmultiplexingontothesamephysicalchannelofdifferentlogicalchannels(seesubclause6.3.2),aPDTCHusingGMSKmodulationcarriesinformationataninstantaneousbitraterangingfrom0to22.8kbit/s.APDTCHusing8PSKmodulationcarriesinformation(includingstealingsymbols)ataninstantaneousbitraterangingfrom0to69.6kbit/s.Allpacketdatatrafficchannelsareuni-directional,eitheruplink(PDTCH/U),foramobileoriginatedpackettransferordownlink(PDTCH/D)foramobileterminatedpackettransfer.3.3Controlchannels3.3.1GeneralControlchannelsareintendedtocarrysignallingorsynchronizationdata.Fourcategoriesofcontrolchannelaredefined:broadcast,common,dedicatedandCTScontrolchannels.Specificchannelswithinthesecategoriesaredefinedinthesubclausesfollowing.3.3.2Broadcastchannels3.3.2.1Frequencycorrectionchannels(FCCHandCFCCH)Thefrequencycorrectionchannelcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.DifferentmappingisusedforFCCHandCOMPACTCFCCH(seeclause7).SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)10(GSM05.02version8.3.1Release1999)3.3.2.2SynchronizationchannelsThesynchronizationchannelcarriesinformationforframesynchronizationofthemobilestationandidentificationofabasetransceiverstation.Itisrequiredonlyfortheoperationoftheradiosub-system.DifferentchannelsareusedforSCHandCOMPACTCSCH.3.3.2.2.1Synchronizationchannel(SCH)Specificallythesynchronizationchannel(SCH)shallcontaintwoencodedparameters: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'.3.3.2.2.2COMPACTsynchronizationchannel(CSCH)TheCOMPACTpacketsynchronizationchannelCSCHshallcontaintwoencodedparameters:a)Basetransceiverstationidentitycode(BSIC):6bits(beforechannelcoding)consistsof3bitsofPLMNcolourcodewithrange0to7and3bitsBScolourcodewithrange0to7asdefinedinGSM03.03.b)ReducedTDMAframenumber(RFN):19bits(beforechannelcoding)=R1(10bits)range0to1023=FNdiv(51x52)R2(6bits)range0to50=(FNdiv52)mod51TG(2bits)range0to3Reserved(1bit)whereFN=TDMAframenumberasdefinedinsubclause4.3.3andTG=timegroupasdefinedinsubclause4.3.4.GSM04.06andGSM04.08specifytheprecisebitordering,GSM05.03thechannelcodingoftheaboveparametersandGSM05.10defineshowtheTDMAframenumbercanbecalculatedfromR1andR2.SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)11(GSM05.02version8.3.1Release1999)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)supportofGPRSTheBCCHshallindicatewhetherornotpacketswitchedtrafficissupported.IfpacketswitchedtrafficissupportedandifthePBCCHexists,thentheBCCHshallbroadcastthepositionofthepacketdatachannel(PDCH),asdefinedinsubclause6.3.2.1,carryingthePBCCH.3.3.2.4PacketBroadcastControlChannels3.3.2.4.1PacketBroadcastControlChannel(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_CHANSindicatesthenumberofphysicalchannelscarryingPCCCHsincludingthephysicalchannelcarryingthePBCCHc)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachPDCHcarryingPCCCHpermultiframewhereneitherpacketpagingnorPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforPAGCH,PNCH,PDTCHandPACCH.Thepositionoftheseblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytothePRACHchannelonanyPDCHcarryingPCCCH.ThepositionofthePRACHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)12(GSM05.02version8.3.1Release1999)3.3.2.4.2COMPACTPacketBroadcastControlChannel(CPBCCH)TheCPBCCHisastand-alonepacketcontrolchannelforCOMPACT.TheCPBCCHbroadcastsparametersusedbytheMStoaccessthenetworkforpackettransmissionoperation.OfthemanyparameterscontainedintheCPBCCH,theuseofthefollowingparameters,asdefinedinGSM04.60arereferredtoinsubclause6.5and6.3.3:a)BS_PBCCH_BLKS(1,…,4)indicatesthenumberofblocksallocatedtotheCPBCCHinthemultiframe.ThepositionoftheCPBCCHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.b)BS_PCC_CHANSindicatesthenumberofradiofrequencychannelspercellcarryingCPCCCHsincludingtheradiofrequencychannelcarryingtheCPBCCH.c)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachradiofrequencychannelcarryingCPCCCHpermultiframewhereneitherpacketpagingnorCPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforCPAGCH,CPNCH,PDTCH,andPACCH.Thepositionoftheseblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.BS_PAG_BLKS_REScannotbegreaterthan8.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytotheCPRACHchannelonanyradiofrequencychannelcarryingCPCCCH.ThepositionoftheCPRACHblocksisbasedontheorderedlistasdefinedinsubclause6.3.2.1.e)NIB_CPBCCH_0,NIB_CPBCCH_1,NIB_CPBCCH_2,andNIB_CPBCCH_3indicatethenumberofdownlinkblockspermultiframedesignatedasidletoprotectCPBCCHblocksfornon-servingtimegroups.Thedownlinkpositionisbasedontheorderedlistandrotationruleasdefinedinsubclause6.3.2.1.f)NIB_CPCCCH_0,NIB_CPCCCH_1,NIB_CPCCCH_2,andNIB_CPCCCH_3indicatethenumberofdownlinkblockspermultiframedesignatedasidletoprotectCPCCCHfornon-servingtimegroups.Thedownlinkpositionisbasedontheorderofthepagingchannelblocks(seeClause7table7)androtatesaccordingtosubclause6.3.2.1.TheindicationsapplyforallCOMPACTcarrierscarryingCPCCCH.g)LARGE_CELL_OPindicateswhichtypeofcellsizeisused:nominalorlarge.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.3.3.3.2PacketCommoncontrolchannels3.3.3.2.1PacketCommonControlChannels(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 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)13(GSM05.02version8.3.1Release1999)3.3.3.2.2COMPACTCommonControlChannels(CPCCCH)i)PacketPagingchannel(CPPCH):Downlinkonly,usedtopageMS.ii)PacketRandomaccesschannel(CPRACH):Uplinkonly,usedtorequestallocationofoneorseveralPDTCHs(foruplinkordownlinkdirection).iii)PacketAccessgrantchannel(CPAGCH):Downlinkonly,usedtoallocateoneorseveralPDTCH.iv)PacketNotificationchannel(CPNCH):Downlinkonly,usedtonotifyMSofPTM-Mcall.3.3.4Dedicatedcontrolchannels3.3.4.1Circuitswitcheddedicatedcontrolchannelsi)Slow,TCH/ForE-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/ForE-TCH/Fassociated,controlchannelformultislotconfigurations(SACCH/M).vi)Slow,TCH/Fassociated,controlchannelforCTS(SACCH/CTS).vii)Fast,E-TCH/Fassociated,controlchannel(E-FACCH/F).viii)Inband,E-TCH/Fassociated,controlchannel(E-IACCH/F)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:SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)14(GSM05.02version8.3.1Release1999)3.3.6.1CTSbeaconchannel(BCH)TheBCHisusedtoprovidefrequencyandsynchronizationinformationinthedownlink.ItismadeupofapairofCTSBCH-SB(Synchronizationburst)andCTSBCH-FB(Frequencycorrectionburst).TheCTSBCH-FBcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.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.Timeispartitionedbytimeslots,TDMAframes,and(forCOMPACT)timegroupsand52-multiframenumberasdefinedinsubclause4.3ofthepresentdocument.SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)15(GSM05.02version8.3.1Release1999)4.2Radiofrequencychannels4.2.1CellallocationandmobileallocationGSM05.05definesradiofrequencychannels(RFCHs),andallocatesnumberstoalltheradiofrequencychannelsavailabletothesystem.Eachcellisallocatedasubsetofthesechannels,definedasthecellallocation(CA).OneradiofrequencychannelofthecellallocationshallbeusedtocarrysynchronizationinformationandtheBCCH,thisshallbeknownasBCCHcarrier.Thesubsetofthecellallocation,allocatedtoaparticularmobile,shallbeknownasthemobileallocation(MA).ForCOMPACT,oneradiofrequencychannelofthecellallocationshallbeusedtocarrysynchronizationinformationandtheCPBCCH,thisshallbeknownastheprimaryCOMPACTcarrier.AllotherradiofrequencychannelsofthecellallocationshallbeknownassecondaryCOMPACTcarriers.4.2.2DownlinkanduplinkThedownlinkcomprisesradiofrequencychannelsusedinthebasetransceiverstationtoMobileStationdirection.Theuplinkcomprisesradiofrequencychannelsusedinthemobilestationtobasetransceiverstationdirection.4.3Timeslots,TDMAframes,andtimegroups4.3.1GeneralAtimeslotshallhaveadurationof3/5200seconds(≈577µs).EighttimeslotsshallformaTDMAframe(≈4,62msinduration).AtthebasetransceiverstationtheTDMAframesonalloftheradiofrequencychannelsinthedownlinkshallbealigned.Thesameshallapplytotheuplink(seeGSM05.10).AtthebasetransceiverstationthestartofaTDMAframeontheuplinkisdelayedbythefixedperiodof3timeslotsfromthestartoftheTDMAframeonthedownlink(seefigure2).Atthemobilestationthisdelaywillbevariabletoallowadjustmentforsignalpropagationdelay.TheprocessofadjustingthisadvanceisknownasadaptiveframealignmentandisdetailedinGSM05.10.ThestaggeringofTDMAframesusedinthedownlinkanduplinkisinordertoallowthesametimeslotnumbertobeusedinthedownlinkanduplinkwhilstavoidingtherequirementforthemobilestationtotransmitandreceivesimultaneously.Theperiodincludestimeforadaptiveframealignment,transceivertuningandreceive/transmitswitching(seefigure4).4.3.2TimeslotnumberThetimeslotswithinaTDMAframeshallbenumberedfrom0to7andaparticulartimeslotshallbereferredtobyitstimeslotnumber(TN).SIST EN 300 908 V8.3.1:2003
ETSIETSIEN300908V8.3.1(2000-09)16(GSM05.02version8.3.1Release1999)4.3.3TDMAframenumberTDMAframesshallbenumberedbyaframenumber(FN).Theframenumbershallbecyclicandshallhavearangeof0toFN_MAXwhereFN_MAX=(26x51x2048)-1=2715647asdefinedinGSM05.10.ForCOMPACT,FN_MAX=(52x51x1024)-1=2715647.TheframenumbershallbeincrementedattheendofeachTDMAframe.ThecompletecycleofTDMAframenumbersfrom0toFN_MAXisdefinedasahyperframe.Ahyperframeconsistsof2048superframeswhereasuperframeisdefinedas26x51TDMAframes.ForCOMPACT,ahyperframeconsistsof1024superframeswhereasuperframeisdefinedas52x51TDMAframes.A26-multiframe,comprising26TDMAframes,isusedtosupporttrafficandassociatedcontrolchannelsanda51-multiframe,comprising51TDMAframes,isusedtosupportbroadcast,commoncontrolandstandalonededicatedcontrol(andtheirassociatedcontrol)channels.Henceasuperframemaybeconsideredas51traffic/associatedcontrolmultiframesor26broadcast/commoncontrolmultiframes.A52-multiframe,comprisingtwo26-multiframes,isusedtosupportpacketdatatrafficandcontrolchannels.TheneedforahyperframeofasubstantiallylongerperiodthanasuperframearisesfromtherequirementsoftheencryptionprocesswhichusesFNasaninputparameter.4.3.4TimegroupUsedforCOMPACT,timegroupsshallbenumberedfrom0to3andaparticulartimegroupshallbereferredtobyitstimegroupnumb
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