SIST EN 300 908 V8.5.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (GSM 05.02 version 8.5.1 Release 1999)
General Information
- Abstract
CRs from SMG#32
- 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 V8.5.1:2003 is a European standard addressing the multiplexing and multiple access methods on the radio path within the Global System for Mobile Communication (GSM) Phase 2+ digital cellular telecommunications system. Published by the Slovenski inštitut za standardizacijo (SIST) and harmonized with ETSI EN 300 908, this standard provides the essential framework for how logical communication channels are mapped to physical channels in GSM networks using methods like Time Division Multiple Access (TDMA), frame structure, timeslots, and frequency management. It is a critical foundation for ensuring robust and interoperable GSM radio network deployments.
Key Topics
- Multiplexing and Multiple Access: Describes how traffic and control channels are efficiently shared among multiple users over limited radio frequencies using TDMA and frequency hopping.
- Channel Structure: Defines both logical channels (such as traffic, control, and broadcast channels) and their mapping to physical channels within GSM.
- Types of Channels:
- Traffic channels: For voice and data (circuit switched and packet switched).
- Control channels: Including broadcast channels (for network information), common control (for paging and access), and dedicated control (for signaling with individual users).
- Physical Layer Resources: Covers spectrum allocation, timeslot assignments, TDMA frames, and burst formats necessary for radio communication.
- Frequency Hopping: Outlines the mechanisms for frequency hopping to minimize interference and optimize spectrum usage.
- Multislot Configurations: Explains how mobiles may use multiple slots for higher data rates in both circuit-switched and packet-switched scenarios.
- Support for GPRS and CTS: Specifies how packet switched data services and cordless telephony (CTS) are incorporated into the GSM radio structure.
Applications
The standard is fundamental for:
- Mobile Network Infrastructure: Ensures GSM radio base stations and network controllers correctly implement channel structures for reliable mobile telephony and data.
- Mobile Device Manufacturers: Guides handset design for seamless operation across GSM networks regarding channel access, modulation, and synchronization.
- System Integrators & Operators: Enables network planning, capacity management, and optimization for high-quality voice and data services.
- Feature Enhancements: Supports advanced features like GPRS (General Packet Radio Service) and CTS (cordless telephony), ensuring continued evolution of GSM technology.
- International Roaming: Promotes interoperability by aligning the radio access methodology across networks and devices worldwide.
Related Standards
To implement SIST EN 300 908 V8.5.1:2003 effectively, familiarity with the following related GSM and telecommunications standards is essential:
- GSM 05.03: Channel coding specification for GSM.
- GSM 05.04: Modulation guidelines for GSM radio.
- GSM 05.05: Radio transmission and reception parameters.
- GSM 05.08: Radio subsystem link control.
- GSM 04.03, 04.06, 04.08: Channel structures, data link layers, and radio interface protocols.
- GSM 01.04: Abbreviations and acronyms used within the GSM specifications.
By adhering to these standards, manufacturers and operators ensure robust and compatible GSM network operations, leading to enhanced service quality and expanded network interoperability.
Keywords: digital cellular telecommunications, GSM radio interface, multiplexing, multiple access, TDMA, frequency hopping, channel mapping, mobile communication standards, SIST EN 300 908, ETSI EN 300 908, radio path, GPRS, CTS, network interoperability.
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Frequently Asked Questions
SIST EN 300 908 V8.5.1:2003 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 8.5.1 Release 1999)". This standard covers: CRs from SMG#32
CRs from SMG#32
SIST EN 300 908 V8.5.1:2003 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 V8.5.1:2003 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 8.5.1 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 8.5.1SIST EN 300 908 V8.5.1:2003en01-december-2003SIST EN 300 908 V8.5.1:2003SLOVENSKI
STANDARD
ETSIEN300908V8.5.1(2000-11)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Multiplexingandmultipleaccessontheradiopath(GSM05.02version8.5.1Release1999)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)2(GSM05.02version8.5.1Release1999)ReferenceREN/SMG-020502Q8R3KeywordsDigitalcellulartelecommunicationssystem,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 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)3(GSM05.02version8.5.1Release1999)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.103.3.2.1Frequencycorrectionchannels(FCCHandCFCCH).103.3.2.2Synchronizationchannels.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.133.3.3.2.1PacketCommonControlChannels(PCCCH).133.3.3.2.2COMPACTCommonControlChannels(CPCCCH).133.3.4Dedicatedcontrolchannels.133.3.4.1Circuitswitcheddedicatedcontrolchannels.133.3.4.2Packetdedicatedcontrolchannels.133.3.5CellBroadcastChannel(CBCH).143.3.6CTScontrolchannels.143.3.6.1CTSbeaconchannel(BCH).143.3.6.2CTSpagingchannel(CTSPCH).143.3.6.3CTSaccessrequestchannel(CTSARCH).143.3.6.4CTSaccessgrantchannel(CTSAGCH).143.4Combinationofchannels.144Thephysicalresource.154.1General.154.2Radiofrequencychannels.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 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)4(GSM05.02version8.5.1Release1999)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.276.3.1.4MappingofSIDFrames.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.306.3.2.3.3MappingofthePBCCH.306.3.2.3.3aMappingoftheCOMPACTCPBCCH.306.3.2.3.4MappingofthePCCCH.306.3.2.3.4aMappingoftheCOMPACTCPCCCH.306.3.2.4MappingofPBCCHdata.316.3.2.4aMappingofCOMPACTCPBCCHdata.316.3.3MappingintimeofCTScontrolchannelsontophysicalchannels.316.3.3.1CTSBCHtimeslotassignment.326.3.3.2CTSPCH,CTSARCHandCTSAGCHtimeslotassignment.336.4Permittedchannelcombinations.346.4.1Permittedchannelcombinationsontoabasicphysicalchannel.346.4.2Multislotconfigurations.356.4.2.1Multislotconfigurationsforcircuitswitchedconnections.356.4.2.2Multislotconfigurationsforpacketswitchedconnections.356.4.2.3Multislotconfigurationsfordualtransfermode.366.5Operationofchannelsandchannelcombinations.366.5.1General.366.5.2DeterminationofCCCH_GROUPandPAGING_GROUPforMSinidlemode.386.5.3Determinationofspecificpagingmultiframeandpagingblockindex.386.5.4ShortMessageServiceCellBroadcast(SMSCB).396.5.5Voicegroupandvoicebroadcastcallnotifications.396.5.6DeterminationofPCCCH_GROUPandPAGING_GROUPforMSinGPRSattachedmode.40SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)5(GSM05.02version8.5.1Release1999)6.5.7DeterminationofCTS_PAGING_GROUPandspecificpaging52-multiframeforMSinCTSmode.41AnnexA(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.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 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)6(GSM05.02version8.5.1Release1999)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.NationaltranspositiondatesDateofadoptionofthisEN:17November2000DateoflatestannouncementofthisEN(doa):28February2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2001DateofwithdrawalofanyconflictingNationalStandard(dow):31August2001SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)7(GSM05.02version8.5.1Release1999)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 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)8(GSM05.02version8.5.1Release1999)[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,whichisdefinedinclause6.4.2.1.MultiplepacketdatatrafficchannelscanbeallocatedtothesameMS.Thisisreferredtoasmultislotpacketconfigurations,asdefinedinclause6.4.2.2.AcombinationofahalfratetrafficchannelandahalfratepacketdatatrafficchannelonthesamebasicphysicalchannelcanbeallocatedtothesameMSasdefinedinclause6.4.2.3.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)9(GSM05.02version8.5.1Release1999)AcombinationofatrafficchannelandoneormorefullratepacketdatatrafficchannelscanbeallocatedtothesameMS.Thespecifictrafficchannelsavailableinthecategoriesofspeechanduserdataaredefinedintheclausesfollowing.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)APDTCH/FcorrespondstotheresourceallocatedtoasingleMSononephysicalchannelforuserdatatransmission.Duetothedynamicmultiplexingontothesamephysicalchannelofdifferentlogicalchannels(seeclause6.3.2),aPDTCH/FusingGMSKmodulationcarriesinformationataninstantaneousbitraterangingfrom0to22,8kbit/s.APDTCH/Fusing8PSKmodulationcarriesinformation(includingstealingsymbols)ataninstantaneousbitraterangingfrom0to69,6kbit/s.APDTCH/HcorrespondstotheresourceallocatedtoasingleMSonhalfaphysicalchannelforuserdatatransmission.ThemaximuminstantaneousbitrateforaPDTCH/HishalfthatforaPDTCH/F.Allpacketdatatrafficchannelsareuni-directional,eitheruplink(PDTCH/U),foramobileoriginatedpackettransferordownlink(PDTCH/D)foramobileterminatedpackettransfer.3.3Controlchannels3.3.1GeneralControlchannelsareintendedtocarrysignallingorsynchronizationdata.Fourcategoriesofcontrolchannelaredefined:broadcast,common,dedicatedandCTScontrolchannels.Specificchannelswithinthesecategoriesaredefinedintheclausesfollowing.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)10(GSM05.02version8.5.1Release1999)3.3.2Broadcastchannels3.3.2.1Frequencycorrectionchannels(FCCHandCFCCH)Thefrequencycorrectionchannelcarriesinformationforfrequencycorrectionofthemobilestation.Itisrequiredonlyfortheoperationoftheradiosub-system.DifferentmappingisusedforFCCHandCOMPACTCFCCH(seeclause7).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=TDMAframenumberasdefinedinclause4.3.3.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=TDMAframenumberasdefinedinclause4.3.3andTG=timegroupasdefinedinclause4.3.4.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)11(GSM05.02version8.5.1Release1999)GSM04.06andGSM04.08specifytheprecisebitordering,GSM05.03thechannelcodingoftheaboveparametersandGSM05.10defineshowtheTDMAframenumbercanbecalculatedfromR1andR2.3.3.2.3Broadcastcontrolchannel(BCCH)Thebroadcastcontrolchannelbroadcastsgeneralinformationonabasetransceiverstationperbasetransceiverstationbasis.OfthemanyparameterscontainedintheBCCH,theuseofthefollowingparameters,asdefinedinGSM04.08arereferredtoinclause6.5: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),asdefinedinclause6.3.2.1,carryingthePBCCH.3.3.2.4PacketBroadcastControlChannels3.3.2.4.1PacketBroadcastControlChannel(PBCCH)ThePBCCHbroadcastsparametersusedbytheMStoaccessthenetworkforpackettransmissionoperation.InadditiontothoseparametersthePBCCHreproducestheinformationtransmittedontheBCCHtoallowcircuitswitchedoperation,suchthataMSinGPRSattachedmodemonitorsthePBCCHonly,ifitexists.TheexistenceofthePBCCHinthecellisindicatedontheBCCH.IntheabsenceofPBCCH,theBCCHshallbeusedtobroadcastinformationforpacketoperation.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)12(GSM05.02version8.5.1Release1999)OfthemanyparameterscontainedinthePBCCH,theuseofthefollowingparameters,asdefinedinGSM04.60arereferredtoinclauses6.5and6.3.2:a)BS_PBCCH_BLKS(1,.,4)indicatesthenumberofblocksallocatedtothePBCCHinthemultiframe.ThepositionofthePBCCHblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.b)BS_PCC_CHANSindicatesthenumberofphysicalchannelscarryingPCCCHsincludingthephysicalchannelcarryingthePBCCHc)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachPDCHcarryingPCCCHpermultiframewhereneitherpacketpagingnorPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforPAGCH,PNCH,PDTCHandPACCH.Thepositionoftheseblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytothePRACHchannelonanyPDCHcarryingPCCCH.ThepositionofthePRACHblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.3.3.2.4.2COMPACTPacketBroadcastControlChannel(CPBCCH)TheCPBCCHisastand-alonepacketcontrolchannelforCOMPACT.TheCPBCCHbroadcastsparametersusedbytheMStoaccessthenetworkforpackettransmissionoperation.OfthemanyparameterscontainedintheCPBCCH,theuseofthefollowingparameters,asdefinedinGSM04.60arereferredtoinclauses6.5and6.3.3:a)BS_PBCCH_BLKS(1,…,4)indicatesthenumberofblocksallocatedtotheCPBCCHinthemultiframe.ThepositionoftheCPBCCHblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.b)BS_PCC_CHANSindicatesthenumberofradiofrequencychannelspercellcarryingCPCCCHsincludingtheradiofrequencychannelcarryingtheCPBCCH.c)BS_PAG_BLKS_RESindicatesthenumberofblocksoneachradiofrequencychannelcarryingCPCCCHpermultiframewhereneitherpacketpagingnorCPBCCHshouldappear.ThisnumbercorrespondsthereforetothenumberofblocksreservedforCPAGCH,CPNCH,PDTCH,andPACCH.Thepositionoftheseblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.BS_PAG_BLKS_REScannotbegreaterthan8.d)BS_PRACH_BLKSindicatesthenumberofblocksreservedinafixedwaytotheCPRACHchannelonanyradiofrequencychannelcarryingCPCCCH.ThepositionoftheCPRACHblocksisbasedontheorderedlistasdefinedinclause6.3.2.1.e)NIB_CCCH_0,NIB_CCCH_1,NIB_CCCH_2,andNIB_CCCH_3indicatethenumberofdownlinkblockspermultiframedesignatedasidletoprotectCPBCCHandCPCCCHblocksfornon-servingtimegroups.Thedownlinkpositionisbasedontheorderedlistandrotationruleasdefinedinclause6.3.2.1.f)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.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)13(GSM05.02version8.5.1Release1999)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.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).x)slow,TCH/Fassociated,controlchannelforCTS(SACCH/CTS).xi)Fast,E-TCH/Fassociated,controlchannel(E-FACCH/F).xii)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.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)14(GSM05.02version8.5.1Release1999)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.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.SIST EN 300 908 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)15(GSM05.02version8.5.1Release1999)4Thephysicalresource4.1GeneralThephysicalresourceavailabletotheradiosub-systemisanallocationofpartoftheradiospectrum.Thisresourceispartitionedbothinfrequencyandtime.Frequencyispartitionedbyradiofrequencychannels(RFCHs)dividedintobandsasdefinedinGSM05.05.Timeispartitionedbytimeslots,TDMAframes,and(forCOMPACT)timegroupsand52-multiframenumberasdefinedinclause4.3ofthepresentdocument.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 V8.5.1:2003
ETSIETSIEN300908V8.5.1(2000-11)16(GSM05.02version8.5.1Release1999)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,timegroupsshallbenumberedfrom0to3andaparticulartimegroupshallbereferredtobyitstimegroupnumber(TG)(seeclause3.3.2.2.2).AtblockB0andframenumber(FN)mod208=0,timegroupnumbers(TG)areassociatedwithtimeslotnumbers(TN)asfollows:TGTN01132537ForCOMPACT,acellisassignedonetimegroupnumber(TG)onaprimaryCOMPACTcarrier.Thisisknownastheservingtimegroup.Othercellsmaybeassignedothertimegroupsonthesamecarrier.5Physicalchannels5.1GeneralAphysicalchannelusesacombinationoffrequencyandtimedivisionmultiplexingandisdefinedasasequenceofradiofrequencychannelsandtimeslots.Thecompletedefinitionofaparticularphysicalchannelconsistsofadescriptioninthefrequencydomain,andadescriptioninthetimedomain.Thedescriptioninthefrequ
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