SIST EN 300 924 V6.1.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 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 300 924 V6.1.1:2003 is the Slovenian adoption of ETSI EN 300 924 Version 6.1.1 for the GSM enhanced Multi-Level Precedence and Pre-emption service (eMLPP) at Stage 1. It specifies, from the subscriber and user viewpoint, how eMLPP assigns call precedence, how higher-priority calls can pre-empt lower-priority calls, and how the service behaves in normal and exceptional cases for GSM Phase 2+ Release 1997 users.
What does SIST EN 300 924 V6.1.1:2003 specify?
SIST EN 300 924 V6.1.1:2003 specifies the Stage 1 service description of eMLPP for digital cellular telecommunications systems (GSM) and says it is an upgrade to Release 1997. It covers the user-visible service behavior, not the man-machine interface requirements.
The scope says eMLPP is a network operator option for a network domain, which may be the whole network or a subset. It applies to teleservices 1x and 6x and to all bearer services used in a GSM mobile network when eMLPP is provided.
The document is organized into clauses on scope, references, definitions and abbreviations, description, normal operation, exceptional procedures, alternate procedures, interaction with other supplementary services, and interworking considerations. Annex A is informative and gives the status history of GSM 02.67.
| Annex | What it covers |
|---|---|
| Annex A | Status of Technical Specification GSM 02.67 |
What are the key requirements of SIST EN 300 924 V6.1.1:2003?
SIST EN 300 924 V6.1.1:2003 defines how precedence and pre-emption are used to prioritize calls and manage congestion. In practice, this tells the network when to give a call faster access, when to interrupt a lower-priority call, and what the user should see when that happens.
Priority levels and call treatment
Clause 4 defines up to seven precedence levels. Levels A and B are reserved for network internal use, while levels 0 to 4 are offered for subscription.
The standard says A and B are mapped to level 0 outside the mobile switching center area where they are used. It also distinguishes treatment for mobile-originated, mobile-terminated, roaming mobile-to-mobile, and voice broadcast or voice group calls, so operators can apply the right priority handling to each call type.
Set-up performance and congestion handling
Clause 4 describes three set-up time classes: fast, normal, and slow. It also says the network should implement mechanisms that meet the service provider’s performance target under normal conditions.
When congestion occurs, the network may pre-empt lower-priority calls at call set-up or during handover. That matters because the service is intended to make room for higher-priority traffic when resources are limited.
Subscription, registration, and invocation
Clause 5 says a service subscriber is given a maximum authorized precedence level after agreement with the service provider. The user may select a precedence level per call, up to that maximum, and the network stores a default level for mobile-originated calls.
The service is invoked automatically by the network at call set-up. If the user does not select a level, the subscriber-specific default is used; if the user tries to select a higher level than allowed, the maximum authorized level is applied.
Automatic answering and user indications
Clause 4 and Clause 5 allow a mobile station to be set for automatic answering of incoming calls at or above a defined priority. If an ongoing lower-priority call must be cleared, or if a call is not automatically accepted, the subscriber receives an indication.
This is important in practice because the user can define how the phone behaves when a more important call arrives, and the network must tell the user when a call is pre-empted or forwarded.
Interactions and interworking
Clauses 8 and 9 describe interaction with other GSM supplementary services and interworking with other networks. Several services have no interaction, while others such as CFU, CFB, CFNRy, CW, Call Hold, MPTY, CUG, AoC, BAOC, BOIC, BOIC-exHC, BAIC, BIC-Roam, and ECT have defined relationships with eMLPP.
For interworking, the document points to MLPP behavior in ITU-T Recommendation I.255.3 and says precedence levels A and B map to level 0. This is the key rule for keeping priority behavior consistent across network boundaries.
What terms does SIST EN 300 924 V6.1.1:2003 define?
- enhanced Multi-Level Precedence and Pre-emption (eMLPP) - The GSM supplementary service that provides priority levels for calls and allows higher-priority calls to pre-empt lower-priority ones.
- precedence - The priority associated with a call.
- calling subscriber - The service subscriber who invokes eMLPP.
- service subscriber - The mobile subscriber who subscribes to eMLPP.
- service provider - The entity that offers eMLPP for subscription.
- network operator - The entity that provides the network operating elements and resources used to execute eMLPP.
Who uses SIST EN 300 924 V6.1.1:2003?
SIST EN 300 924 V6.1.1:2003 is used by GSM network operators, service providers, and telecommunications engineers who need to configure priority handling for calls. It is also relevant to quality managers and buyers who need to understand what a GSM network can do for emergency, operational, premium, or other prioritized services.
It helps with subscription setup, network configuration, call handling during congestion, roaming behavior, and service interaction analysis. It is also relevant when assessing interworking with networks that provide MLPP.
What changed in SIST EN 300 924 V6.1.1:2003 from the previous edition?
The status history shows version 6.1.1 follows version 6.1.0. The listed update for version 6.1.0 is a clarification of behavior when a user tries to register a default priority level that is too high.
Which standards are used with SIST EN 300 924 V6.1.1:2003?
- GSM01.04 - Provides abbreviations and acronyms used in the document.
- GSM02.04 - Gives the general framework for supplementary services.
- GSM02.24 - Provides the description of Charge Advice Information (CAI) used for charging-related references.
- GSM02.40 - Provides procedures for call progress indications, including congestion-related indication.
- GSM02.68 - Gives the Stage 1 description of Voice Group Call Service (VGCS).
- GSM02.69 - Gives the Stage 1 description of Voice Broadcast Service (VBS).
- GSM03.05 - Gives technical performance objectives used in the service description context.
- GSM03.68 - Gives the Stage 2 description of VGCS.
- GSM03.69 - Gives the Stage 2 description of VBS.
- ITU-T Recommendation I.255.3 - Provides the MLPP Stage 1 model used for interworking considerations.
What does the SIST EN 300 924 V6.1.1:2003 document contain?
The document contains the Stage 1 service description, the definition of precedence levels, examples of set-up classes, and the rules for invocation, pre-emption, automatic answering, and charging-related recording. It also contains service interaction clauses for common GSM supplementary services and an interworking clause for other networks.
Annex A gives the publication and approval history of GSM 02.67. The document also includes a short list of references, definitions, abbreviations, and a history section that records version progression.
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Frequently Asked Questions
SIST EN 300 924 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); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 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 300 924 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 300 924 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 300 924 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.Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 1 (GSM 02.67 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 300 924 Version 6.1.1SIST EN 300 924 V6.1.1:2003en01-december-2003SIST EN 300 924 V6.1.1:2003SLOVENSKI
STANDARD
ETSIEN300924V6.1.1(1999-12)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);enhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP)-Stage1(GSM02.67version6.1.1Release1997)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 924 V6.1.1:2003
ETSIETSIEN300924V6.1.1(1999-12)2(GSM02.67version6.1.1Release1997)ReferenceREN/SMG-010267Q6R1KeywordsDigitalcellulartelecommunicationssystem,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.©EuropeanTelecommunicationsStandardsInstitute1999.Allrightsreserved.SIST EN 300 924 V6.1.1:2003
ETSIETSIEN300924V6.1.1(1999-12)3(GSM02.67version6.1.1Release1997)ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.64Description.64.1Applicabilitytotelecommunicationservices.95Normaloperationwithsuccessfuloutcome.95.1Provision.95.2Withdrawal.95.3Registration.95.4Erasure.105.5Networkrelatedserviceconfiguration.105.6Activation.105.7Deactivation.105.8Invocation.105.9Normaloperation.105.10Interrogation.115.11Chargingrequirements.116Exceptionalproceduresorunsuccessfuloutcome.117Alternateprocedures.118Interactionwithothersupplementaryservices.118.1CallingLineIdentificationPresentation(CLIP).118.2CallingLineIdentificationRestriction(CLIR).118.3ConnectedLineIdentificationPresentation(COLP).118.4ConnectedLineIdentificationRestriction(COLR).118.5CallForwardingUnconditional(CFU).118.6CallForwardingonmobilesubscriberbusy(CFB).128.7CallForwardingonNoReply(CFNRy).128.8CallForwardingonmobilesubscriberNotReachable(CFNRc).128.9CallWaiting(CW).128.10CallHold.128.11Multi-partyService(MPTY).128.12ClosedUserGroup(CUG).128.13AdviceofCharge(AoC).128.14BarringofOutgoingCalls(BAOC).128.15BarringofOutgoingInternationalCalls(BOIC).138.16BarringofOutgoingInternationalCallsexceptthosetotheHomePLMNcountry(BOIC-exHC).138.17BarringofAllIncomingCalls(BAIC).138.18BarringofIncomingCallswhenRoamingoutsidethehomePLMNcountry(BIC-Roam).138.19CallTransfer(ECT).139Interworkingconsiderations.13AnnexA(informative):StatusofTechnicalSpecificationGSM02.67.14History.15SIST EN 300 924 V6.1.1:2003
ETSIETSIEN300924V6.1.1(1999-12)4(GSM02.67version6.1.1Release1997)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).Thepresentdocumentspecifiesthestage1descriptionoftheenhancedMulti-LevelPrecedenceandPre-emptionService(eMLPP)withinthedigitalcellulartelecommunicationssystem.ThecontentsofthepresentdocumentmaybesubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenbere-submittedforformalapprovalproceduresbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version6.x.ywhere:6GSMPhase2+Release1997;xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.;ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:17December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 924 V6.1.1:2003
ETSIETSIEN300924V6.1.1(1999-12)5(GSM02.67version6.1.1Release1997)1ScopeThepresentdocumentspecifiesthestage1descriptionoftheenhancedMulti-LevelPrecedenceandPre-emptionService(eMLPP).Thisservicehastwoparts:precedenceandpre-emption.Precedenceinvolvesassigningapriorityleveltoacallincombinationwithfastcallset-up.Pre-emptioninvolvestheseizingofresources,whichareinusebyacallofalowerprecedence,byahigherlevelprecedencecallintheabsenceofidleresources.Pre-emptioncanalsoinvolvethedisconnectionofanon-goingcalloflowerprecedencetoacceptanincomingcallofhigherprecedence.TheeMLPPserviceisprovidedasanetworkoperator'soptiontoadomainofanetwork.Thedomaincanbethewholenetworkorasubsetofthenetwork.TheeMLPPserviceappliestoallnetworkresourcesinthedomainthatisincommonuse.TheeMLPPserviceisapplicabletoallmobilestationsinthedomainwithallorsomemobilestationshavingarespectivesubscriptionassigningprecedenceaccordingtotheeMLPPservice.eMLPPisasupplementaryserviceandshallbeprovidedtoasubscriberforallbasicservicessubscribedtoandforwhicheMLPPapplies.NOTE:ItisunderstudywhethernormalGSMPhase2MobileStationswillbeabletobeusedforthisservice.Theserviceisdescribedfromtheservicesubscriber'sanduser'spointofview,inparticular:-theprocedurefornormaloperationwithsuccessfuloutcome;-theactiontobetakeninexceptionalcircumstances;-theinteractionwithotherGSMservicesandfeatures.ThepresentdocumentdoesnotdealwiththeMan-MachineInterface(MMI)requirements,butmakesreferencetotheappropriateGlobalSystemforMobilecommunications(GSM)specifications.Thepresentdocumentisapplicabletoteleservices1xand6xandtoallbearerservicesusedinamobilenetworkaccordingtothedigitalcellulartelecommunicationssystemGSMifeMLPPisprovided.Anyinteractionwithotherservicesand/ornetworksnotdealtwithinclauses8or9areoutsidethescopeofthepresentdocument.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]GSM02.04:"Digitalcellulartelecommunicationssystem(Phase2+);Generalonsupplementaryservices".[3]GSM02.24:"Digitalcellulartelecommunicationssystem(Phase2+);DescriptionofChargeAdviceInformation(CAI)".[4]GSM02.40:"Digitalcellulartelecommunicationssystem(Phase2+);Proceduresforcallprogressindications".SIST EN 300 924 V6.1.1:2003
ETSIETSIEN300924V6.1.1(1999-12)6(GSM02.67version6.1.1Release1997)[5]GSM02.68:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceGroupCallService(VGCS)-Stage1".[6]GSM02.69:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceBroadcastService(VBS)-Stage1".[7]GSM03.05:"Digitalcellulartelecommunicationssystem(Phase2+);Technicalperformanceobjectives".[8]GSM03.68:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceGroupCallService(VGCS)-Stage2".[9]GSM03.69:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceBroadcastService(VBS)-Stage2".[10]ITU-TRecommendationI.255.3:"ISDNMulti-LevelPrecedenceandPre-emption(MLPP)stage1".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply.callingsubscriber:ServicesubscriberwhichinvokestheeMLPPservice.networkoperator:EntitywhichprovidesthenetworkoperatingelementsandresourcesfortheexecutionoftheenhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP).precedence:Precedenceisthepriorityassociatedwithacall.serviceprovider:EntitywhichofferstheeMLPPserviceforsubscription.Thenetworkoperatormaybetheserviceprovider.servicesubscriber:MobilesubscriberwhichsubscribestotheeMLPPservice.Inprinciple,ifanetworkprovideseMLPPservice,allusersareabletosubscribetothisservice.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationapplies,inadditiontothoselistedinGSM01.04:eMLPPenhancedMulti-LevelPrecedenceandPre-emption4Descriptiona)TheenhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP)providesdifferentlevelsofprecedenceforcallset-upandforcallcontinuityincaseofhandover.eMLPPshallbeapplicablealsoincaseofroamingifsupportedbytherelatednetworks.Themaximumprecedencelevelofasubscriberissetatthesubscriptiontimebytheserviceprovider,basedonthesubscriber'sneed.Thesubscribermayselectaprecedenceleveluptoandincludingthemaximumprecedencelevelsubscribedto,onapercallbasis.Thereareatmaximum7prioritylevels
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