SIST EN 300 947 V7.0.1:2003

• Abstract:

  Upgrade from Phase 2+ to Release 1998

• 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
• Mandate: UIC
• Ref Project: ETSI EN 300 947 V7.0.1 (2000-01) - Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre-emption service (eMLPP); Stage 3 (GSM 04.67 version 7.0.0 Release 1998)

Overview

SIST EN 300 947 V7.0.1:2003 defines the procedures for the enhanced Multi-Level Precedence and Pre-emption service (eMLPP) within the Digital Cellular Telecommunications System (GSM Phase 2+), aligned with Release 1998 specifications. Developed by the Slovenski inštitut za standardizacijo (SIST) in equivalence with EN 300 947, this standard details the signalling and operational aspects required for prioritizing voice and data communications in GSM networks, focusing on critical call management for subscribers such as emergency services and organizations with command and control requirements.

eMLPP enables multi-tiered call precedence and the ability to pre-empt lower priority calls in order to ensure higher priority communications are transmitted without delay. This capability is essential for robust public safety, defense, and essential infrastructure support in mobile GSM networks.

Key Topics

• Enhanced Multi-Level Precedence and Pre-emption (eMLPP):
  Specifies how to handle different call priorities for both outgoing and incoming calls on GSM networks, including procedures for group and broadcast calls.

• Normal Operation:
  Details on signalling for mobile-originated and mobile-terminated calls, including the use of priority levels and default settings where a specific priority is not chosen.

• Registration and Erasure:
  Describes how a subscriber's default eMLPP priority is registered within the mobile network and ways to erase or update this information.

• Interrogation Procedures:
  Outlines how subscribers can query the network to check permissible priority levels and the current default setting for their subscription.

• Integration with Supplementary Services:
  eMLPP is considered a supplementary service within GSM Phase 2+ and interacts with other services such as call waiting, call hold, and multi-party calls.

Applications

Enhanced call precedence and pre-emption are vital features in several key sectors:

• Public Safety and Emergency Response:
  Police, fire, and medical services rely on eMLPP to prioritize urgent communications, ensuring that critical calls are connected even when networks are congested.

• Defense and Security:
  Military and security agencies use multi-level precedence to maintain operational command and dispatch protocols.

• Critical Infrastructure:
  Energy, transport, and utility providers use eMLPP during emergencies or peak events to guarantee service continuity for essential communications.

• Enterprise Communications:
  Organizations with internal command hierarchies or urgent operational needs benefit from structured call precedence offered by eMLPP in GSM-based private networks.

Related Standards

For full implementation and interoperability, SIST EN 300 947 V7.0.1:2003 should be considered alongside related GSM standards:

• GSM 03.11 & GSM 03.67: Technical realization and execution of supplementary services, including eMLPP stage 2.
• GSM 02.67: Definitions and scope of the eMLPP supplementary service.
• GSM 04.02, 04.07, 04.08, 04.10, 04.80: Reference points, signalling layers, and general aspects of supplementary service handling in GSM.
• GSM 02.04, 02.8x, 02.9x, 03.8x, 03.9x series: Further descriptions of supplementary services such as call forwarding, call waiting, and group call features.

By adhering to SIST EN 300 947 V7.0.1:2003, GSM network operators and equipment manufacturers ensure compliance with European standards for call precedence and pre-emption, optimizing their telecommunications services for safety, resilience, and operational efficiency.

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 3 (GSM 04.67 version 7.0.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 947 Version 7.0.1SIST EN 300 947 V7.0.1:2003en01-december-2003SIST EN 300 947 V7.0.1:2003SLOVENSKI
STANDARD
ETSIEN300947V7.0.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);enhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP);Stage3(GSM04.67version7.0.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)2(GSM04.67version7.0.1Release1998)ReferenceREN/SMG-030467Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]Ideliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)3(GSM04.67version7.0.1Release1998)ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74enhancedMulti-LevelPrecedenceandPre-emption(eMLPP).74.1Normaloperation.74.1.1Mobileoriginatedcalls.74.1.2Mobileterminatedcalls.94.1.3Calledpartypre-emptionformobileterminatedcalls.94.1.4Groupcallorbroadcastcall,callingmobilestation.94.1.5Grouporbroadcastcall,calledmobilestations.114.2Registration.114.3Erasure.114.4Activation,deactivation.124.5Interrogation.12AnnexA(informative):ChangeRequestHistory.13History.14SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)4(GSM04.67version7.0.1Release1998)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).ThepresentdocumentspecifiesthestagethreedescriptionoftheenhancedMulti-LevelPrecedenceandPre-emptionService(eMLPP)withinthedigitalcellulartelecommunicationssystem.ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillbere-releasedwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7 indicates Release 1998 of GSM Phase 2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:31December1999DateoflatestannouncementofthisEN(doa):31March2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2000DateofwithdrawalofanyconflictingNationalStandard(dow):30September2000SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)5(GSM04.67version7.0.1Release1998)1ScopeThepresentdocumentspecifiestheproceduresusedattheradiointerface(ReferencepointUmasdefinedinGSM04.02)fornormaloperation,invocation,registrationandinterrogationoftheenhancedMulti-LevelPrecedenceandPre-emptionService(eMLPP)supplementaryservice.Provisionandwithdrawalofsupplementaryservicesisanadministrativematterbetweenthemobilesubscriberandtheserviceproviderandcausenosignallingontheradiointerface.InGSM04.10thegeneralaspectsofthespecificationofsupplementaryservicesatthelayer3radiointerfacearegiven.GSM04.80specifiestheformatsandcodingforthesupplementaryservices.DefinitionsanddescriptionsofsupplementaryservicesaregiveninGSM02.04andGSM02.8xand02.9x-series.GSM02.67isrelatedspeciallytoeMLPP.TechnicalrealizationofsupplementaryservicesisdescribedinGSM03.11andGSM03.8xand03.9x-series.GSM03.67isrelatedspeciallytoeMLPP.TheproceduresforCallControl,MobilityManagementandRadioResourcemanagementatthelayer3radiointerfacearedefinedinGSM04.07andGSM04.08.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.•ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM02.04:"Digitalcellulartelecommunicationssystem(Phase2+);Generalonsupplementaryservices".[3]GSM02.67:"Digitalcellulartelecommunicationssystem(Phase2+);enhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP)-Stage1".[4]GSM02.81:"Digitalcellulartelecommunicationssystem(Phase2+);Lineidentificationsupplementaryservices-Stage1".[5]GSM02.82:"Digitalcellulartelecommunicationssystem(Phase2+);CallForwarding(CF)supplementaryservices-Stage1".[6]GSM02.83:"Digitalcellulartelecommunicationssystem(Phase2+);CallWaiting(CW)andCallHold(HOLD)supplementaryservices-Stage1".[7]GSM02.84:"Digitalcellulartelecommunicationssystem(Phase2+);MultiParty(MPTY)supplementaryservices-Stage1".[8]GSM02.85:"Digitalcellulartelecommunicationssystem(Phase2+);ClosedUserGroup(CUG)supplementaryservices-Stage1".SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)6(GSM04.67version7.0.1Release1998)[9]GSM02.86:"Digitalcellulartelecommunicationssystem(Phase2+);AdviceofCharge(AoC)SupplementaryServices-Stage1".[10]GSM02.88:"Digitalcellulartelecommunicationssystem(Phase2+);CallBarring(CB)supplementaryservices-Stage1".[11]GSM02.90:"Digitalcellulartelecommunicationssystem(Phase2+);Stage1descriptionofUnstructuredSupplementaryServiceData(USSD)".[12]GSM02.91:"Digitalcellulartelecommunicationssystem(Phase2+);ExplicitCallTransfer(ECT)".[13]GSM03.11:"Digitalcellulartelecommunicationssystem(Phase2+);Technicalrealizationofsupplementaryservices".[14]GSM03.67:"Digitalcellulartelecommunicationssystem(Phase2+);enhancedMulti-LevelPrecedenceandPre-emptionservice(eMLPP)-Stage2".[15]GSM03.68:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceGroupCallService(VGCS)-Stage2".[16]GSM03.69:"Digitalcellulartelecommunicationssystem(Phase2+);VoiceBroadcastService(VBS)-Stage2".[17]GSM03.81:"Digitalcellulartelecommunicationssystem(Phase2+);Lineidentificationsupplementaryservices-Stage2".[18]GSM03.82:"Digitalcellulartelecommunicationssystem(Phase2+);CallForwarding(CF)supplementaryservices-Stage2".[19]GSM03.83:"Digitalcellulartelecommunicationssystem(Phase2+);CallWaiting(CW)andCallHold(HOLD)supplementaryservices-Stage2".[20]GSM03.84:"Digitalcellulartelecommunicationssystem(Phase2+);MultiParty(MPTY)supplementaryservices-Stage2".[21]GSM03.85:"Digitalcellulartelecommunicationssystem(Phase2+);ClosedUserGroup(CUG)supplementaryservices-Stage2".[22]GSM03.86:"Digitalcellulartelecommunicationssystem(Phase2+);AdviceofCharge(AoC)supplementaryservices-Stage2".[23]GSM03.88:"Digitalcellulartelecommunicationssystem(Phase2+);CallBarring(CB)supplementaryservices-Stage2".[24]GSM03.90:"Digitalcellulartelecommunicationssystem(Phase2+);Unstructuredsupplementaryservicesoperation-Stage2".[25]GSM03.91:"Digitalcellulartelecommunicationssystem(Phase2+);ExplicitCallTransfer(ECT)supplementaryservice-Stage2".[26]GSM04.02:"Digitalcellulartelecommunicationssystem(Phase2+);GSMPublicLandMobileNetwork(PLMN)accessreferenceconfiguration".[27]GSM04.07:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacesignallinglayer3;Generalaspects".[28]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3specification".[29]GSM04.10:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3Supplementaryservicesspecification;Generalaspects".[30]GSM04.80:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3supplementaryservicesspecificationFormatsandcoding".SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)7(GSM04.67version7.0.1Release1998)3Definitionsandabbreviations3.1DefinitionsDefinitionsusedinthepresentdocumentaredefinedinGSM02.67andGSM03.67.3.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.Forthepurposesofthepresentdocument,thefollowingabbreviationsapply:eMLPPenhancedMLPPMLPPMulti-LevelPrecedenceandPre-emptionVBSVoiceBroadcastServiceVGCSVoiceGroupCallService4enhancedMulti-LevelPrecedenceandPre-emption(eMLPP)4.1NormaloperationNOTE:InthecallrelatedmessagesonlytheadditionalinformationfortheeMLPPsupplementaryserviceisshowninthefigures.4.1.1MobileoriginatedcallsThemobilestationcanindicatethepriorityofeachcallinitiated.Ifnopriorityisindicatedbytheuseroranon-compatiblemobilestationisusedthenthedefaultprioritylevelshallbeappliedwhichisstoredintheVLR.TheselectionofpriorityshallbeanMMIfunction.SIST EN 300 947 V7.0.1:2003

ETSIETSIEN300947V7.0.1(2000-01)8(GSM04.67version7.0.1Release1998)Formobileoriginatedcalls,thecorrespondingmessageflowsareshowninfigure1.MSNetworkIMM_ASS<----------------------------------
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