SIST EN 300 911 V6.7.2:2003

Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.7.2 Release 1997)

CRs SMG#30, #30bis

Digitalni celični telekomunikacijski sistem (faza 2+) – Krmiljenje povezave radijskega podsistema (GSM 05.08, različica 6.7.2, izdaja 1997)

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 911 V6.7.2 (2000-07) - Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.7.2 Release 1997)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.7.2 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 911 Version 6.7.2SIST EN 300 911 V6.7.2:2003en01-december-2003SIST EN 300 911 V6.7.2:2003SLOVENSKI
STANDARD



SIST EN 300 911 V6.7.2:2003



ETSIEN300911V6.7.2(2000-07)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemlinkcontrol(GSM05.08version6.7.2Release1997)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)2(GSM05.08version6.7.2Release1997)ReferenceREN/SMG-020508Q6R5KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°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:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)3(GSM05.08version6.7.2Release1997)ContentsIntellectualPropertyRights.6Foreword.61Scope.71.1References.71.2Abbreviations.82General.83Handover.93.1Overallprocess.93.2MSmeasurementprocedure.93.3BSSmeasurementprocedure.93.4Strategy.94RFpowercontrol.104.1Overallprocess.104.2MSimplementation.104.3MSpowercontrolrange.104.4BSSimplementation.104.5BSSpowercontrolrange.104.6Strategy.114.7Timing.114.8Dedicatedchannelsusedforavoicegroupcallorvoicebroadcast.115Radiolinkfailure.115.1Criterion.115.2MSprocedure.125.3BSSprocedure.126Idlemodetasks.136.1Introduction.136.2Measurementsfornormalcellselection.136.3Measurementsforstoredlistcellselection.146.4Criteriaforcellselectionandreselection.146.5Downlinksignallingfailure.156.6MeasurementsforCellReselection.166.6.1MonitoringofreceivedsignallevelandBCCHdata.166.6.2Pathlosscriteriaandtimingsforcellre-selection.176.7ReleaseofTCHandSDCCH.176.7.1Normalcase.176.7.2Callre-establishment.186.8Abnormalcasesandemergencycalls.187Networkpre-requisites.197.1BCCHcarriers.197.2IdentificationofsurroundingBSSforhandovermeasurements.198Radiolinkmeasurements.208.1Signallevel.218.1.1General.218.1.2Physicalparameter.218.1.3Statisticalparameters.228.1.4Rangeofparameter.228.2Signalquality.228.2.1General.228.2.2Physicalparameter.228.2.3Statisticalparameters.228.2.4Rangeofparameter.23SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)4(GSM05.08version6.7.2Release1997)8.3Aspectsofdiscontinuoustransmission(DTX).248.4Measurementreporting.248.4.1MeasurementreportingfortheMSonaTCH.248.4.2MeasurementreportingfortheMSonaSDCCH.258.4.3AdditionalcellreportingrequirementsformultibandMS.268.4.4CommonaspectsfortheMSonaTCHoraSDCCH.268.4.5MeasurementreportingfortheBSS.278.4.6Extendedmeasurementreporting.278.5AbsoluteMS-BTSdistance.278.5.1General.278.5.2Physicalparameter.289Controlparameters.2810GPRSmodetasks.3010.1CellRe-selection.3010.1.1MonitoringthereceivedsignallevelandPBCCHdata.3010.1.1.1Packetidlemode.3010.1.1.2Packettransfermode.3110.1.2CellRe-selectionCriteria.3210.1.3CellRe-selectionAlgorithm.3310.1.3.1Abnormalcellreselection.3410.1.4NetworkcontrolledCellre-selection.3410.1.4.1Measurementreporting.3510.1.4.2Cellre-selectioncommand.3510.1.4.3Exceptionalcases.3610.1.5ExtendedMeasurementreporting.3610.2RFPowerControl.3710.2.1MSoutputpower.3710.2.2BTSoutputpower.3810.2.3MeasurementsatMSside.3910.2.3.1DerivingtheCvalue.3910.2.3.1.1Packetidlemode.3910.2.3.1.2Packettransfermode.4010.2.3.2DerivationofChannelQualityReport.4110.2.3.2.1Packettransfermode.4110.2.3.2.2Packetidlemode.4210.2.3.2.3Measurementreporting.4310.2.4MeasurementsatBSSside.4310.3Measurementrequirements.4310.4Controlparameters.44AnnexA(informative):DefinitionofabasicGSMorDCS1800handoverandRFpowercontrolalgorithm.46A.1Scope.46A.2Functionalrequirement.46A.3BSSpre-processingandthresholdcomparisons.47A.3.1Measurementaveragingprocess.47A.3.2Thresholdcomparisonprocess.48A.3.2.1RFpowercontrolprocess.48A.3.2.2HandoverProcess.49A.4BSSdecisionalgorithm.50A.4.1Internalintracellhandoveraccordingtoradiocriteria:(Interferenceproblems).51A.4.2Internalhandoveraccordingtoothercriteria.51A.4.3Generalconsiderations.51SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)5(GSM05.08version6.7.2Release1997)A.5Channelallocation.51A.6HandoverdecisionalgorithmintheMSC.52AnnexB(informative):PowerControlProcedures.54B.1Openloopcontrol.54B.2Closedloopcontrol.55B.3Qualitybasedcontrol.55B.4BTSpowercontrol.56B.5Example.56AnnexC(informative):ChangeRequestHistory.58History.60SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)6(GSM05.08version6.7.2Release1997)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)hasbeenproducedbytheSpecialMobileGroup(SMG).ThepresentdocumentspecifiestheRadiosub-systemlinkcontrolimplementedintheMobileStation(MS),BaseStationSystem(BSS)andMobileSwitchingCentre(MSC)ofthedigitalmobilecellularandpersonalcommunicationsystemsoperatinginthe900MHzand1800MHzband(GSM900andDCS1800).ThecontentsofthepresentdocumentmaybesubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenbere-submittedforformalapprovalproceduresbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version6.x.ywhere:6indicatesrelease1997ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:19May2000DateoflatestannouncementofthisEN(doa):31August2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):28February2001DateofwithdrawalofanyconflictingNationalStandard(dow):28February2001SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)7(GSM05.08version6.7.2Release1997)1ScopeThepresentdocumentspecifiestheRadiosub-systemlinkcontrolimplementedintheMobileStation(MS),BaseStationSystem(BSS)andMobileSwitchingCentre(MSC)oftheGSMandDCS1800systems.Unlessotherwisespecified,referencestoGSMalsoincludeDCS1800.1.1ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1997document,referencestoGSMdocumentsareforRelease1997versions(version6.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[3]GSM03.09:"Digitalcellulartelecommunicationssystem(Phase2+);Handoverprocedures".[4]GSM03.22:"Digitalcellulartelecommunicationssystem(Phase2+);FunctionsrelatedtoMobileStation(MS)inidlemodeandgroupreceivemode".[5]GSM04.04:"Digitalcellulartelecommunicationssystem(Phase2+);Layer1;Generalrequirements".[6]GSM04.06:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interface;DataLink(DL)layerspecification".[7]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".[8]GSM05.02:"Digitalcellulartelecommunicationssystem(Phase2+);Multiplexingandmultipleaccessontheradiopath".[9]GSM05.05:"Digitalcellulartelecommunicationssystem(Phase2+);Radiotransmissionandreception".[10]GSM05.10:"Digitalcellulartelecommunicationssystem(Phase2+);Radiosubsystemsynchronization".[11]GSM06.11:"Digitalcellulartelecommunicationssystem;Fullratespeech;Substitutionandmutingoflostframesforfullratespeechchannels".[12]GSM08.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobile-servicesSwitchingCentre-BaseStationSystem(MSC-BSS)interface,Layer3specification".[13]GSM08.58:"Digitalcellulartelecommunicationssystem(Phase2+);BaseStationController-BaseTransceiverStation(BSC-BTS)interface;Layer3specification".SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)8(GSM05.08version6.7.2Release1997)[14]GSM11.10:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation(MS)conformityspecification".[15]GSM03.64:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);OveralldescriptionoftheGPRSRadioInterface;Stage2".1.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.2GeneralTheradiosub-systemlinkcontrolaspectsthatareaddressedareasfollows:-Handover;-RFPowercontrol;-RadiolinkFailure;-Cellselectionandre-selectioninIdlemode,inGroupReceivemodeandinGPRSmode(seeGSM03.22).HandoverisrequiredtomaintainacallinprogressasaMSengagedinapoint-to-pointcallorwithaccesstotheuplinkofachannelusedforavoicegroupcallpassesfromonecellcoverageareatoanotherandmayalsobeemployedtomeetnetworkmanagementrequirements,e.g.reliefofcongestion.HandovermayoccurduringacallfromoneTCHormultipleTCHs(inthecaseofmultislotconfiguration)toanotherTCHormultipleTCHs.ItmayalsooccurfromDCCHtoDCCHorfromDCCHtooneormultipleTCH(s),e.g.duringtheinitialsignallingperiodatcallset-up.Thehandovermaybeeitherfromchannel(s)ononecelltootherchannel(s)onasurroundingcell,orbetweenchannelsonthesamecellwhicharecarriedonthesamefrequencyband.Examplesaregivenofhandoverstrategies,however,thesewillbedeterminedindetailbythenetworkoperator.ForamultibandMS,specifiedinGSM02.06,thehandoverdescribedisalsoallowedbetweenanychannelsondifferentcellswhicharecarriedondifferentfrequencybands,e.g.betweenaGSM900/TCHandaDCS1800/TCH.Handoverbetweentwoco-locatedcells,carriedondifferentfrequencybands,isconsideredasinter-cellhandoverirrespectiveofthehandoverproceduresused.AdaptivecontroloftheRFtransmitpowerfromanMSandoptionallyfromtheBSSisimplementedinordertooptimizetheuplinkanddownlinkperformanceandminimizetheeffectsofco-channelinterferenceinthesystem.Thecriteriafordeterminingradiolinkfailurearespecifiedinordertoensurethatcallswhichfaileitherfromlossofradiocoverageorunacceptableinterferencearesatisfactorilyhandledbythenetwork.Radiolinkfailuremayresultineitherre-establishmentorreleaseofthecallinprogress.Forchannelsusedforavoicegroupcall,anradiouplinkfailureresultsinthefreeingupoftheuplink.Proceduresforcellselectionandre-selectionwhilstinIdlemode(i.e.notactivelyprocessingacall),arespecifiedinordertoensurethatamobileiscampedonacellwithwhichitcanreliablycommunicateonboththeradiouplinkanddownlink.TheoperationsofanMSinIdleModearespecifiedinGSM03.22.Cellre-selectionisalsoperformedbytheMSwhenattachedtoGPRS,exceptwhentheMSsimultaneouslyhasacircuitswitchedconnection.Optionalproceduresarealsospecifiedfornetworkcontrolledcellre-selectionforGPRS.Cellre-selectionforGPRSisdefinedinsubclause10.1.AnMSlisteningtoavoicegroupcalloravoicebroadcastusecellre-selectionprocedurestochangecell.Thismaybesupportedbyalistofcellscarryingthevoicegrouporvoicebroadcastcalldownlink,providedtotheMSbythenetwork.TheoperationsofanMSinGroupReceiveModearespecifiedinGSM03.22.InformationsignalledbetweentheMSandBSSissummarizedintables1,2and3.AfullspecificationoftheLayer1headerisgiveninGSM04.04,andoftheLayer3fieldsinGSM04.08.SIST EN 300 911 V6.7.2:2003



ETSIETSIEN300911V6.7.2(2000-07)9(GSM05.08version6.7.2Release1997)3Handover3.1OverallprocessTheoverallhandoverprocessisimplementedintheMS,BSSandMSC.Measurementofradiosubsystemdownlinkperformanceandsignallevelsreceivedfromsurroundingcells,ismadeintheMS.ThesemeasurementsaresignalledtotheBSSforassessment.TheBSSmeasurestheuplinkperformancefortheMSbeingservedandalsoassessesthesignallevelofinterferenceonitsidletrafficchannels.InitialassessmentofthemeasurementsinconjunctionwithdefinedthresholdsandhandoverstrategymaybeperformedintheBSS.AssessmentrequiringmeasurementresultsfromotherBTSorotherinformationresidentintheMSC,maybeperformedintheMSC.GSM03.09describesthehandoverprocedurestobeusedinPLMNs.3.2MSmeasurementprocedureAprocedureshallbeimplementedintheMSbywhichitmonitorsthedownlinkRXsignallevelandqualityfromitsservingcellandthedownlinkRXsignallevelandBSICofsurroundingBTS.ThemethodofidentificationofsurroundingBTSisdescribedinsubclause7.2.TherequirementsfortheMSmeasurementsaregiveninsubclause8.1.3.3BSSmeasurementprocedureAprocedureshallbeimplementedintheBSSbywhichitmonitorstheuplinkRXsignallevelandqualityfromeachMSbeingservedbythecell.Inthecaseofamultislotconfigurationtheevaluationshallbeperformedonatimeslotpertimeslotbasis.AprocedureshallbeimplementedbywhichtheBSSmonitorsthelevelsofinterferenceonitsidletrafficchannels.3.4StrategyThehandoverstrategyemployedbythenetworkforradiolinkcontroldeterminesthehandoverdecisionthatwillbemadebasedonthemeasurementresultsreportedbytheMS/BSSandvariousparameterssetforeachcell.Networkdirectedhandovermayalsooccurforreasonsotherthanradiolinkcontrol,e.g.tocontroltrafficdistributionbetweencells.Theexacthandoverstrategieswillbedeterminedbythenetworkoperator,adetailedexampleofabasicoverallalgorithmappearsinannexA.Possibletypesofhandoverareasfollows:Inter-cellhandover:IntercellhandoverfromtheservingcelltoasurroundingcellwillnormallyoccureitherwhenthehandovermeasurementsshowlowRXLEVand/orRXQUALonthecurrentservingcellandabetterRXLEVavailablefromasurroundingcell,orwhenasurroundingcellallowscommunicationwithalowerTXpowerlevel.ThistypicallyindicatesthatanMSisontheborderofthecellarea.IntercellhandovermayalsooccurfromtheDCCHontheservingcelltoaTCHormultislotconfigurationonanothercellduringcallestablishment.ThismaybeusedasameansofprovidingsuccessfulcallestablishmentwhennoTCHresourceisavailableonthecurrentservingcell.Inter-cellhandoverbetweencellsusingdifferentfrequencybandsisallowedforamultibandMS.Intra-cellhandover:Intra-cellhandoverfromonechannel/timeslotintheservingcelltoanotherchannel/timeslotinthesamecellwillnormallybeperformedifthehandovermeasurementsshowalowRXQUAL,butahighRXLEVontheservingcell.ThisindicatesadegradationofqualitycausedbyinterferenceeventhoughtheMSissituatedwithintheservingcell.Theintra-cellhandovershouldprovideachannelwithalowerlevelofinterference.Intra-cellhandovercanoccureithertoatimeslotonanewcarrierortoadifferenttimeslotonthesamecarrier.Similarly,intra-cellhandovermayoccurbetweendifferentmultislotconfigurationsinthesamecell.Thesemultislotconfigurationsmaycomprisedifferentnumberoftimeslotsandmaypartlyoverlap.Intra-cellhandoverfromoneofthebandsofoperationtoanotheroneisallowedforamultibandMS.SIST EN 300 911 V6.7.2:2003



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