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)
- 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
SIST EN 300 908 V8.5.1:2003 is the Slovenian national standard identical to EN 300 908 Version 8.5.1. It specifies multiplexing and multiple access on the GSM radio path - in practice, the physical channels, bursts, frame structure, frequency hopping, and the mapping of logical channels onto those physical channels for GSM Phase 2+ radio access. It is written for GSM network and terminal implementers working with GSM 900 and DCS 1800, including packet and CTS-related cases.
What does SIST EN 300 908 V8.5.1:2003 specify?
SIST EN 300 908 V8.5.1:2003 specifies the radio-subsystem physical resources needed to support GSM logical channels, and how those logical channels are carried in time and frequency. Clause 1 covers references and abbreviations, clauses 2 to 6 cover logical channels, physical resources, bursts, and the mapping rules, and clause 7 presents the mapping tables used by the rest of the document.
The document covers traffic channels and control channels, including broadcast, common, dedicated, packet, and CTS control channels. It also includes annexes for Phase 2 mobiles in a Phase 1 infrastructure, multislot capability, and worked examples for CTS and COMPACT timing.
| Annex | What it covers |
|---|---|
| Annex A | Phase 2 mobiles in a Phase 1 infrastructure |
| Annex B | Multislot capability |
| Annex C | CTSBCH timeslot shifting example |
| Annex D | COMPACT multiframestructure examples |
| Annex E | Change control history |
What are the key requirements of SIST EN 300 908 V8.5.1:2003?
The document fixes the GSM radio timing model
Clause 4 defines the basic radio timing structure: timeslots, TDMA frames, multiframe structure, and hyperframes. A timeslot lasts 3/5200 seconds, eight timeslots make one TDMA frame, and the frame numbering is cyclic. In practice, this is the timing base that both network and mobile must use for transmit, receive, and synchronization.
Logical channels are grouped by function
Clause 3 divides logical channels into traffic channels and control channels. Traffic channels carry encoded speech or user data, while control channels carry signaling and synchronization. This matters because the same physical carrier can be arranged very differently depending on whether the cell is serving voice, circuit-switched data, packet data, or CTS.
Burst formats are defined by bit structure and purpose
Clause 5 defines the burst types used on the air interface, including Normal burst, Frequency correction burst, Synchronization burst, Dummy burst, and Access burst. The document specifies the useful parts, tail bits, training sequences, and guard periods. In practice, these burst definitions tell equipment how to modulate, detect, and align transmissions.
Frequency hopping is driven by explicit parameters
Clause 6.2 defines the hopping sequence inputs: cell allocation, mobile allocation, MAIO, HSN, and related CTS parameters. It also gives the hopping sequence generation rules. For implementers, this is the rule set for deciding which RF channel a given logical channel uses in each frame.
Broadcast and paging behavior are tightly scheduled
Clauses 3.3, 6.3, and 6.5 define how BCCH, CCCH, PBCCH, PCCCH, and CTS paging channels are placed in multiframes and how mobiles determine their CCCH_GROUP, PAGING_GROUP, PCCCH_GROUP, and CTS_PAGING_GROUP. This affects which blocks a mobile monitors in idle or packet-attached mode, and therefore affects paging latency and power consumption.
Multislot operation is constrained by the mobile class
Clause 6.4 covers permitted channel combinations, including circuit-switched multislot, packet multislot, DTM, COMPACT, and CTS combinations. Annex B sets the multislot capability framework. In practice, network planning must match the allocation to the mobile station class and respect the allowed channel combinations.
CTS and COMPACT have separate control structures
Clauses 3.3.6, 6.2.6, 6.3.3, and clause 7 tables 8 and 9 define CTS and COMPACT channel mapping, including CTSBCH, CTSPCH, CTSARCH, CTSAGCH, CFCCH, CSCH, CPBCCH, and CPCCCH. This is important for systems that support GSM cordless telephony or COMPACT-specific carriers.
What terms does SIST EN 300 908 V8.5.1:2003 define?
- TCH - Traffic Channel, used to carry encoded speech or user data in circuit-switched mode.
- PDTCH - Packet Data Traffic Channel, used to carry packet-switched user data.
- BCCH - Broadcast Control Channel, used to broadcast general cell information.
- CCCH - Common Control Channel, the group that includes PCH, RACH, AGCH, and NCH.
- PBCCH - Packet Broadcast Control Channel, used for packet transmission access information.
- CTS - GSM Cordless Telephony System, covered here through CTS control channels and timing rules.
- TDMA frame - The repeating GSM time structure made of eight timeslots.
Who uses SIST EN 300 908 V8.5.1:2003?
GSM radio engineers use SIST EN 300 908 V8.5.1:2003 when designing base transceiver stations, mobiles, packet data carriers, and CTS equipment. Network planners use it to configure paging, access, hopping, and multislot allocations. Test laboratories and quality teams use it to verify that implementations follow the right burst types, frame timing, and logical-channel mapping.
Which standards are used with SIST EN 300 908 V8.5.1:2003?
- GSM01.04 - provides the abbreviations and acronyms used throughout the document.
- GSM03.03 - supplies numbering, addressing, and identification items such as BSIC and related identifiers.
- GSM04.03 - defines channel structures and access capabilities, including allowed combinations.
- GSM04.06 - provides data link layer details and bit ordering references.
- GSM04.08 - provides radio interface layer 3 rules and the broadcast parameters used by this document.
- GSM05.03 - gives channel coding for the parameters carried on bursts.
- GSM05.04 - defines modulation.
- GSM05.05 - defines radio transmission and reception, including RF channel behavior.
- GSM05.08 - provides link control context used in the scheduling notes.
- GSM05.10 - defines radio subsystem synchronization and TDMA frame number handling.
- GSM03.64 and GSM04.60 - provide the GPRS radio interface and RLC/MAC context.
- GSM03.52, GSM04.56, and GSM05.56 - provide the CTS lower-layer, layer 3, and subsystem references.
What does the SIST EN 300 908 V8.5.1:2003 document contain?
Clause 7 is largely a set of mapping tables that connect logical channels to physical channels, burst types, and multiframe positions. The tables cover circuit-switched traffic, broadcast and common control, packet channels, CTS channels, and COMPACT channels.
The document also contains formulas and procedures for hopping sequence generation, paging-group determination, and timeslot shifting. Figures show the relationship between logical channels and the radio resource, the TDMA frame structure, and the burst formats. Annex C and Annex D add worked examples for CTSBCH shifting and COMPACT multiframes, which help when implementing or checking timing behavior.
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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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