SIST EN 300 949 V6.1.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); Broadcast Call Control (BCC) protocol (GSM 04.69 version 6.1.1 Release 1997)
- Abstract
Upgrade from Phase 2+ to Release 1997
- 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
- Mandate
- UIC
SIST EN 300 949 V6.1.1:2003 is the Slovenian adoption of the ETSI European Standard for the Broadcast Call Control (BCC) protocol in the Global System for Mobile Communication (GSM) Phase 2+ / Release 1997 profile. It specifies how a mobile station (MS) and the network set up, control, report status for, and release a voice broadcast call over the radio interface. Engineers, quality managers, and buyers use it to check the BCC signaling used by the Voice Broadcast Call Service (VBCS) between the MS and the network.
What does SIST EN 300 949 V6.1.1:2003 specify?
SIST EN 300 949 V6.1.1:2003 specifies the BCC protocol used by VBCS on the radio interface. Support for this protocol is optional in both the MS and the network, and the standard focuses on the behavior of two peer entities: one in the MS and one in the network.
The document is organized into scope, references, definitions and abbreviations, applicability, main concepts, elementary procedures, handling of unknown and erroneous protocol data, message functional definitions and contents, information element coding, and informative Annex A on change request history. The standard also states that dispatcher protocol is outside its scope.
What are the key requirements of SIST EN 300 949 V6.1.1:2003?
Call model, roles, and states
- Clause 5 defines BCC as a Connection Management (CM) sublayer protocol and models the exchange as communicating finite state machines. In practice, implementers have to match the state behavior at the MS and network sides, not just the message syntax.
- Clause 6.1 defines MS and network states such as NULL, BROADCASTCALLINITIATED, BROADCASTCALLACTIVE, BROADCASTCALLPRESENT, BROADCASTCALLCONNECTIONREQUESTED, TERMINATIONREQUESTED, and RECEIVEMODEACTIVE. These states matter because message handling depends on the current state.
- Clause 6.1 also defines the parameters ORIG, COMM, D-ATT, and U-ATT, together with timers Tnochannel, TMM-est, Tterm, and Tconnreq. In practice, implementations must start, stop, and act on these timers at the specified events.
Establishment and activation
- Clause 6.2 allows the network to activate a broadcast call in selected cells using a broadcast call reference and priority. This is the network-side trigger for making the call available.
- Clause 6.2.2 lets the MS establish a call either by SETUP after explicit MM connection establishment or by IMMEDIATESETUP with implicit MM connection establishment. That choice affects how the MS sets up the lower layers and what it sends first.
- Clause 6.2.2 and 6.2.3 use CONNECT, BROADCASTCALLPRESENT, and BROADCASTCALLCONNECTIONREQUESTED to move the MS into active or receive-mode-active operation. In practice, the call becomes usable only after the relevant lower-layer indications arrive.
Ongoing call, release, and status handling
- Clause 6.3 covers the active state, including the network’s supervisory role and the MS behavior in RECEIVEMODEACTIVE. If no channel is available in RECEIVEMODEACTIVE, Tnochannel applies and the MS must react accordingly.
- Clause 6.4 defines termination, abort, and release. The originator uses TERMINATIONREQUEST, the network answers with TERMINATION or TERMINATIONREJECT, and the protocol clears context and returns to NULL when the call ends or fails.
- Clause 6.5 defines GETSTATUS and SETPARAMETER. The MS responds with STATUS when communication is enabled, so operators and test tools can query call state, state attributes, and error conditions.
Error handling and message rules
- Clause 7 specifies how the MS handles too-short messages, unknown transaction identifiers, unknown message types, missing or invalid mandatory information elements, repeated or out-of-sequence elements, and semantically incorrect contents. This is the interoperability safety net for malformed or unexpected signaling.
- Clauses 8 and 9 restrict each message to named information elements in a fixed order. That means an implementation must build and parse messages exactly as defined, not by general GSM L3 rules alone.
What terms does SIST EN 300 949 V6.1.1:2003 define?
- BCC - Broadcast Call Control, the protocol described by this standard.
- Broadcast call channel - the downlink channel allocated in each cell for a particular broadcast call.
- Broadcast call - the same concept as a voice broadcast call.
- Calling user - the BCC entity in the MS that initiates or has initiated the broadcast call.
- Originating mobile station - the MS that initiates or has initiated the broadcast call.
- Call reference - the information element that identifies the broadcast call reference or broadcast ID, and can also carry priority.
- State attributes - the information element that carries the values of D-ATT, U-ATT, ORIG, and COMM.
Who uses SIST EN 300 949 V6.1.1:2003?
SIST EN 300 949 V6.1.1:2003 is used by GSM MS and network designers, protocol developers, integration teams, and conformance test labs. It is also useful for operators and quality teams checking broadcast-call behavior, message exchange, and state handling across the radio interface.
What changed in SIST EN 300 949 V6.1.1:2003 from the previous edition?
Annex A records the change request history leading to this version. It lists corrections, updates to the GetStatus and SetStatus procedures, changes to broadcast call control states and state attributes, coding of the CallReference IE, and the version update to 6.1.1 for publication.
Which standards are used with SIST EN 300 949 V6.1.1:2003?
- GSM 01.04 - abbreviations and acronyms.
- GSM 02.69 - Voice Broadcast Call Service (VBCS) stage 1.
- GSM 03.03 - numbering, addressing, and identification.
- GSM 03.67 - enhanced Multi-Level Precedence and Pre-emption service (eMLPP) stage 2.
- GSM 03.69 - VBCS stage 2.
- GSM 04.06 - MS-BSS data link layer.
- GSM 04.07 - mobile radio interface signaling layer 3 general aspects.
- GSM 04.08 - mobile radio interface layer 3 specification.
What does the SIST EN 300 949 V6.1.1:2003 document contain?
Clause 8 defines the BCC Layer 3 messages: CONNECT, GETSTATUS, IMMEDIATESETUP, SETPARAMETER, SETUP, STATUS, TERMINATION, TERMINATIONREJECT, and TERMINATIONREQUEST. Clause 9 defines the value parts for Protocol Discriminator, Transaction identifier, MessageType, CallReference, Callstate, Cause, Originatorindication, SpareHalfOctet, and Stateattributes.
The document also contains the MS-side and network-side state descriptions, timer behavior, establishment and release procedures, and the rules for handling unknown or erroneous protocol data. These parts are the core reference for implementation, testing, and interoperability checking.
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Frequently Asked Questions
SIST EN 300 949 V6.1.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); Broadcast Call Control (BCC) protocol (GSM 04.69 version 6.1.1 Release 1997)". This standard covers: Upgrade from Phase 2+ to Release 1997
Upgrade from Phase 2+ to Release 1997
SIST EN 300 949 V6.1.1:2003 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 300 949 V6.1.1:2003 is associated with the following European legislation: Standardization Mandates: UIC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 949 V6.1.1:2003 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.NUPLOMHQMDDigital cellular telecommunications system (Phase 2+) (GSM); Broadcast Call Control (BCC) protocol (GSM 04.69 version 6.1.1 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 949 Version 6.1.1SIST EN 300 949 V6.1.1:2003en01-december-2003SIST EN 300 949 V6.1.1:2003SLOVENSKI
STANDARD
ETSIEN300949V6.1.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);BroadcastCallControl(BCC)protocol(GSM04.69version6.1.1Release1997)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)2(GSM04.69version6.1.1Release1997)ReferenceREN/SMG-030469Q6R1KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)3(GSM04.69version6.1.1Release1997)ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.74Applicability.75Mainconcepts.76ElementaryproceduresforBroadcastCallControl.86.1Overview.86.1.1General.86.1.2Broadcastcallcontrolstates.86.1.2.1BroadcastcallcontrolstatesattheMSsideoftheinterface.86.1.2.1.1AttributesandParametersofBCCintheMS.86.1.2.1.2NULL(U0).96.1.2.1.3MMCONNECTIONPENDING(U0.p).96.1.2.1.4BROADCASTCALLINITIATED(U1).96.1.2.1.5BROADCASTCALLACTIVE(U2).96.1.2.1.6BROADCASTCALLPRESENT(U3).96.1.2.1.7BROADCASTCALLCONNECTIONREQUESTED(U4).96.1.2.1.8TERMINATIONREQUESTED(U5).96.1.2.1.9RECEIVEMODEACTIVE(U6).96.1.2.1.10BCCTIMERSINTHEMS.106.1.2.1.11CONSISTENCYOFPARAMETERSANDSTATES.106.1.2.2BROADCASTCALLCONTROLSTATESATTHENETWORKSIDEOFTHEINTERFACE.106.1.2.2.1NULL(StateN0).106.1.2.2.2BROADCASTCALLINITIATED(N1).106.1.2.2.3BROADCASTCALLACTIVE(N2).116.1.2.2.4BROADCASTCALLESTABLISHMENTPROCEEDING(N3).116.1.2.2.5TERMINATIONREQUESTED(N4).116.2Proceduresforestablishmentofabroadcastcall.116.2.1Activationofabroadcastcallbythenetwork.116.2.2Mobileoriginatedestablishment.116.2.2.1Terminationduringmobileoriginatedestablishment.126.2.2.2Abnormalcases.126.2.3MobileterminatingbroadcastcallestablishmentintheMS.126.3Proceduresduringtheactivestateandreceivemodeactivestateofabroadcastcall.126.3.1Mobilestationproceduresintheactivestate.126.3.2Networkproceduresintheactivestate.136.3.3MobilestationproceduresintheRECEIVEMODEACTIVEstate.136.4Proceduresforrelease,abortion,andterminationofabroadcastcall.136.4.1Terminationprocedure.136.4.2Abortandreleaseprocedures.146.5Miscellaneousprocedures.146.5.1Statusprocedures.146.5.1.1Getstatusprocedure.146.5.1.2Setparameterprocedure.147Handlingofunknown,unforeseen,anderroneousprotocoldata.147.1General.147.2Messagetooshort.157.3Unknownorunforeseentransactionidentifier.15SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)4(GSM04.69version6.1.1Release1997)7.4Unknownorunforeseenmessagetype.157.5Non-semanticalmandatoryinformationelementerrors.157.6Unknownandunforeseeninformationelementsinthenon-imperativemessagepart.167.6.1Informationelementsunknowninthemessage.167.6.2Outofsequenceinformationelements.167.6.3RepeatedInformationelements.167.7Non-imperativemessageparterrors.167.7.1SyntacticallyincorrectoptionalInformationelements.167.8Messageswithsemanticallyincorrectcontents.168Messagefunctionaldefinitionsandcontents.168.1CONNECT.178.2GETSTATUS.188.2.1mobileidentity.188.3IMMEDIATESETUP.188.3.1Mobileidentity.198.4SETPARAMETER.198.5SETUP.198.6STATUS.208.6.1Callstate.208.6.2Stateattributes.208.7TERMINATION.218.8TERMINATIONREJECT.218.9TERMINATIONREQUEST.219Contentsofinformationelementsvalueparts.229.1ProtocolDiscriminator.229.2Transactionidentifier.229.3MessageType.229.4Otherinformationelements.229.4.1CallReference.239.4.2Callstate.239.4.3Cause.249.4.4Originatorindication.259.4.5SpareHalfOctet.269.4.6Stateattributes.26AnnexA(informative):ChangeRequestHistory.27History.28SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)5(GSM04.69version6.1.1Release1997)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbytheSpecialMobileGroup(SMG).ThepresentdocumentspecifiestheBroadcastCallControl(BCC)protocolwithinthedigitalcellulartelecommunicationssystem(Phase2+).ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version6.x.ywhere:6indicatesRelease1997ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)6(GSM04.69version6.1.1Release1997)1ScopeThepresentdocumentspecifiestheBroadcastCallControl(BCC)protocolusedbytheVoiceBroadcastCallService(VBCS)ontheradiointerface.2ReferencesThefollowingdocumentscontainprovisionswhich,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]GSM02.69):"Digitalcellulartelecommunicationssystem(Phase2+);VoiceBroadcastCallService(VBCS)stage1".[3]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[4]GSM03.67:"Digitalcellulartelecommunicationssystem(Phase2+);enhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP)-Stage2".[5]GSM03.69:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceBroadcastCallService(VBCS)stage2".[6]GSM04.06:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-BaseStationSystem(MS-BSS)interfaceDataLink(DL)layerspecification".[7]GSM04.07:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacesignallinglayer3Generalaspects".[8]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".3Definitionsandabbreviations3.1DefinitionsDefinitionsusedinthepresentdocumentarealsodefinedinGSM02.69.Forthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply.Attachmentoftheuserconnection:SeeGSM04.08,subclause5.2.Broadcastcallchannel:Downlinkchanneltobeallocatedineachcellofthegroupcallareaforaparticularbroadcastcall.AllMSsofthelisteningservicesubscribersinonecellshalllistentothecommondownlink.SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)7(GSM04.69version6.1.1Release1997)Broadcastcall:Isusedinthesamesenseas"voicebroadcastcall".Callinguser:BCCentityintheMobileStation(MS)initiatingorhavinginitiatedabroadcastcall.Clearingthecontextrelatedtothebroadcastcallestablishment:allrunningBCCtimersintherelevantBCCentityarestopped,allattributesintherelevantBCCentityaredeleted.Downlink:NetworktoMSdirection.Groupreceivemode:SeeGSM04.08.Originatingmobilestation:MSinitiatingorhavinginitiatedthebroadcastcall.Uplink:Mobilestationtonetworkdirection.3.2AbbreviationsAbbreviationsusedinthepresentdocumentarealsolistedinGSM01.04.Forthepurposesofthepresentdocument,thefollowingabbreviationapplies:BCCBroadcastCallControl.4ApplicabilitySupportofthebroadcastcallprotocolisoptionalintheMSandinthenetwork.5MainconceptsThepresentdocumentdescribesthebroadcastcallcontrol(BCC)protocol,whichisoneoftheprotocolsoftheConnectionManagement(CM)sublayer(seeGSM04.07).ThereisingeneralmorethanoneMSengagedinabroadcastcall.Consequently,thereisingeneralmorethanoneMSwithaBCCentityengagedinthesamebroadcastcall,andthereisoneBCCentityinthenetworkengagedinthatbroadcastcall.UnderwhichconditionsaBCCmessageispassedfromlower(sub-)layerstotheBCCentityisdefinedinthespecificationsofthesub-layers.TheMSshallignoreBCCmessagesthatitreceiveswhichweresentinunacknowledgedmodeandwhichexplicitlyspecifyasdestinationamobileidentitywhichisnotamobileidentityoftheMS.HigherlayersandtheMMsub-layerdecidewhentoacceptparallelBCCtransactionsandwhen/whethertoacceptBCCtransactionsinparalleltootherCMtransactions.Thebroadcastcallmaybeinitiatedbyamobileuserorbyadispatcher.Specificationofaprotocolfordispatchersisoutofthescopeofthepresentdocument.Hence,inthescopeofthepresentdocument,thereare:-oneBCCentityinthenetwork;and-oneormorethanoneBCCentitiesindifferentMSsengagedinabroadcastcall,andoneorenoneoftheMSsistheoriginatorofthebroadcastcall(calledtheoriginatingMSinthepresentdocument).NOTE:WhereasfortheGroupCallControl(GCC)protocol(seeGSM04.68),incertainsituations,theGCCentityinaMSassumestobetheoriginatorofabroadcastcallwithoutbeingtheoriginator,thisisnotthecasefortheBCCprotocol.SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)8(GSM04.69version6.1.1Release1997)TheoriginatoroftheBCCtransactionchoosestheTransactionIdentifier(TI).AMSnotassumingtobetheoriginatorofthetransactionwillchosethetransactionidentifierreceivedfromthenetwork,settingtheTIflagto1+xmod2wherexisthereceivedTIflag.Thepresentdocumentdescribesthebroadcastcallcontrolprotocolonlywithregardtotwopeerentities,oneinaMS,theotheroneinthenetwork.Thecallcontrolentitiesaredescribedascommunicatingfinitestatemachineswhichexchangemessagesacrosstheradiointerfaceandcommunicateinternallywithotherprotocol(sub)layers.Inparticular,theBCCprotocolusestheMMandRRsublayerspecifiedinGSM04.08.TheBCCentityinaMSthatisnottheoriginatorofthebroadcastcallshallnotsendmessagestoitspeerentity.Thisdescriptioninonlynormativeasfarastheconsequentialexternallyobservablebehaviourisconcerned.Forsimplicity,insteadofusingtheterms"BCCentityintheMS"and"BCCentityinthenetwork",thepresentdocumentoftenusestheterms"MS"and"network"ifnoconfusionmayarise.Certainsequencesofactionsofthetwopeerentitiescompose"elementaryprocedures"whichareusedasabasisforthedescriptioninthepresentdocument.Theseelementaryproceduresaredefinedinclause6.ThenetworkshouldapplysupervisoryfunctionstoverifythattheBCCproceduresareprogressingandifnot,takeappropriatemeanstoresolvetheproblems.This,however,isoutofthescopeofthepresentdocument.6ElementaryproceduresforBroadcastCallControl6.1Overview6.1.1GeneralTheelementaryproceduresmaybebroadcastedintothefollowingclasses:-broadcastcallestablishmentprocedures;-broadcastcallterminationprocedures;-broadcastcallinformationphaseprocedures;-miscellaneousprocedures.6.1.2Broadcastcallcontrolstates6.1.2.1BroadcastcallcontrolstatesattheMSsideoftheinterfaceTheBCCentityoftheMSisdescribedasanextendedfinitestatemachine.Itperformstransitionsbetweenstates.Ithascertainparametersandattributes,e.g.configurationparametersandbehaviourparameters,whichitsetsandchangesbasedoninteractionwithhigherandlower(sub-)layersandonmessageexchangewithitspeerentity.Ifaconfigurationparameterissettoacertainvalue,theMSshallalsoadapttheconfigurationaccordingly.Behaviourparametersdecideon(partof)thebehaviouroftheBCCentity.WhentheBCCentityintheMSreceivesamessage,itshallfirstanalysewhetheritshallignorethemessage,seeclauses5and7.6.1.2.1.1AttributesandParametersofBCCintheMSForthefollowingbehaviourparameters,thedescriptionisinformative.ParameterDescriptionORIGDependingonthecontext,theMSassumestobetheoriginatorofthecall(ORIG=T)ornottobetheoriginatorofthecall(ORIG=F).COMMDependingonthecontext,theMSassumesthatcommunicationwithitspeerentityisenabledinbothdirections(COMM=T)ornot(COMM=F).SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)9(GSM04.69version6.1.1Release1997)ForthefollowingconfigurationparameterstheMSshalladaptitsconfigurationaccordingtotheparametervalueandparameterdefinition.ParameterDefinitionD-ATTD-ATT=TmeansthattheMSattachestheuserconnectionforthebroadcastcallinthedownlink.D-ATT=FmeansthattheMSdoesnotattachtheuserconnectionforthebroadcastcallinthedownlink.U-ATTU-ATT=TmeansthattheMSattachestheuserconnectionforthebroadcastcallintheuplink.U-ATT=FmeansthattheMSdoesnotattachtheuserconnectionforthebroadcastcallintheuplink.6.1.2.1.2NULL(U0)NobroadcastcallexistsfortheBCCentity.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=F,COMM=F,D-ATT=F,U-ATT=F.6.1.2.1.3MMCONNECTIONPENDING(U0.p)TheBCCentityhasrequestedtheexplicitestablishmentofanMMconnection.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=T,COMM=F,D-ATT=F,U-ATT=F.6.1.2.1.4BROADCASTCALLINITIATED(U1)TheBCCentityhasrequestedthepeerentityinthenetworktoestablishabroadcastcall.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=T,COMM=T,D-ATT=F,U-ATT=F.6.1.2.1.5BROADCASTCALLACTIVE(U2)Thebroadcastcallisestablishedatleastinonecell.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=T,COMM=T,D-ATT=T,U-ATT=T.6.1.2.1.6BROADCASTCALLPRESENT(U3)TheMShasreceivedanotificationaboutanongoingbroadcastcall.Higherlayersarerequestedtoacceptorrejectthecall.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=F,COMM=F,D-ATT=F,U-ATT=F.6.1.2.1.7BROADCASTCALLCONNECTIONREQUESTED(U4)TheMShasreceivedanotificationaboutanongoingbroadcastcall.Higherlayershavedecidedtoacceptthecall.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=F,COMM=F,D-ATT=F,U-ATT=F.6.1.2.1.8TERMINATIONREQUESTED(U5)TheMSwhichistheoriginatorofthebroadcastcallhasbeeninstateU1orU2andhassentaTERMINATIONREQUESTmessagetothenetwork.Whenenteringthestate,parametersshallbesettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=T,COMM=T,D-ATT=T,U-ATT=T.6.1.2.1.9RECEIVEMODEACTIVE(U6)TheBCCentityintheMSinstateU4,BROADCASTCALLCONNECTIONREQUESTED,hasgotanindicationfromlower(sub-)layersthatRRhasenteredgroupreceivemode(seeGSM04.08).Whenenteringthestate,parametersshallSIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)10(GSM04.69version6.1.1Release1997)besettothefollowingvalues,andconfigurationshallbeadaptedtothenewvaluesofconfigurationparameters:ORIG=F,COMM=F,D-ATT=T,U-ATT=F.6.1.2.1.10BCCTIMERSINTHEMSTable6.1specifiesthetimersusedinBCC.Thedenotationofcolumnsisdefinedasfollows:timer::=nameofthetimer;set::=underwhichconditionsthetimerisset(i.e.,started);stopped::=underwhichconditionsthetimerisstopped;runninginstate(s)::=inwhichstate(s)thetimermayberunning;actionatexpiry::=whichactionstheBCCentityshallperformatexpiry;value::=thedurationbetweensettingthetimerandexpiryofthetimer("s"denotes"second(s)""xx-yy"meansthatanyvaluebetweenxxandyyispermitted).Table6.1:SpecificationoftimersusedinBCCtimersetstoppedrunninginstate(s)actionatexpiryvalueTnochannelinstateU6onreceiptofanindicationfromlower(sub-)layersthatnochanneliscurrentlyavailablewhenleavingU6orwhenreceivinginU6anindicationfromlower(sub-)layersthatachannelisavailableinU6,dependingonfurtherconditionsseesubclause6.3.13sTMM-estwhenenteringU0.pusingtheset-upprocedurewhenenteringU1usingtheimmediateset-upprocedurewhenleavingU0.porU1U0.p,U1seesubclause6.2.15sTtermwhensendingaTERMINATIONREQUESTwhenreceivingaTERMINATIONorTERMINATIONREJECTU5abortbroadcastcall10sTconnreqwhenenteringstateU4whenleavingstateU4U4abortbroadcastcall10-30s6.1.2.1.11CONSISTENCYOFPARAMETERSANDSTATESTheMSshallconsiderthefollowingparametervaluesasinconsistentwiththestateorsub-state:ORIG=TisinconsistentwithstatesU3,U4,andU6.COMM=TisinconsistentwithstatesU0,U3,U4,andU6.AllothervaluesofparametersORIG,COMM,D-ATT,andU-ATTshallnotbeconsideredbytheMSasinconsistentwithastate.6.1.2.2BROADCASTCALLCONTROLSTATESATTHENETWORKSIDEOFTHEINTERFACE6.1.2.2.1NULL(StateN0)NobroadcastcallexistsfortheBCCentity.6.1.2.2.2BROADCASTCALLINITIATED(N1)TheBCCentityhasreceivedtheindicationthatapeerentityinaMSwantstoestablishabroadcastcallforacertainbroadcastidentity.SIST EN 300 949 V6.1.1:2003
ETSIETSIEN300949V6.1.1(2000-01)11(GSM04.69version6.1.1Release1997)6.1.2.2.3BROADCASTCALLACTIVE(N2)Thebroadcastcallisestablishedinatleastonecell;theremaybeaMSwhichhasseizedtheuplinkornot;theremaybetalkingdispatchersornot.6.1.2.2.4BROADCASTCALLESTABLISHMENTPROCEEDING(N3)TheBCCentitywantstoacceptthebroadcastcall,hasinitiatedestablishmentofcorrespondingbroadcastcallchannels,and,ifthereisacallinguser.hassentaCONNECTmessagetothecallinguser.6.1.2.2.5TERMINATIONREQUESTED(N4)TheBCCentityhasaskedlowersub-layerstoterminatethebroadcastcallinallcellsandwaitsforaconfirmationthatthebroadcastcallhasbeenterminatedinallcells.6.2Proceduresforestablishmentofabroadcastcall6.2.1ActivationofabroadcastcallbythenetworkTheBCCentityinthenetworkmayinitiatetheactivationofabroadcastcallwithacertainbroadcastcallreferenceandpriorityinalistofcellsbyaskinglowerlayerstoestablishthebroadcastcallwiththatbroadcastcallreferenceandpriorityinthosecells.Itthenwaitsuntilitisinformedbylower(sub-)layersthatresourceactivationwassufficientlysuccessful,andentersstateN2,BCACTIVE,6.2.2MobileoriginatedestablishmentHigherlayersintheMSmayasktheBCCentityinstateU0,NULL,toestablishabroadcastcall,eitherusingtheimmediateset-upprocedureorusingtheset-upprocedure.Therequestcontainsagroup-idandmaycontainapriorityindication.Onrequestofhigherlayerstoestablishabroadcastcallusingtheset-upprocedure,theBCCentityoftheMSbuildsanappropria
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