SIST EN 300 392-11-10 V1.1.1:2003

• Abstract:

  Analysis of predicted needs for digital trunked systems in Europe; definition of services to be provided; analysis of spectrum req ments; characteristics of relevant interfaces Contains: TETRA 08.60 to 08.85

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• 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 300 392-11-10 V1.1.1 (2001-03) - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 11: Supplementary services stage 2; Sub-part 10: Priority Call (PC)

SIST EN 300 392-11-10 V1.1.1:2003 is the Slovenian adoption of ETSI EN 300 392-11-10 for Terrestrial Trunked Radio (TETRA) Voice plus Data (V+D). It defines the stage 2 specification for the Supplementary Service Priority Call (SS-PC), describing how priority is defined, activated, deactivated, interrogated and used for call setup in a TETRA network.

What does SIST EN 300 392-11-10 V1.1.1:2003 specify?

SIST EN 300 392-11-10 V1.1.1:2003 specifies the functional behaviour of SS-PC for TETRA. The service gives a user preferential access to network resources during congestion, and it applies to circuit mode calls for speech or data.

The document covers the management of the service in the Switching and Management Infrastructure (SwMI), the Mobile Station (MS) and the Line Station (LS), plus information flows across the Inter-System Interface (ISI). It also states what is outside scope, including pre-emptive priorities, Man-Machine Interface (MMI) and charging principles.

The document is organised into:

• Scope
• References
• Definitions and abbreviations
• Functional model
• Information flows
• Allocation of FEs to physical equipment
• Inter-working considerations
• History

What are the key requirements of SIST EN 300 392-11-10 V1.1.1:2003?

Clause 4 sets out the functional model. SIST EN 300 392-11-10 V1.1.1:2003 uses Functional Entities (FEs) for user A, the SS-PC functions in the SwMI, the authorised user, and user B. In practice, this tells implementers which network side and terminal side functions must exchange priority-related information.

Clause 5 defines the service behaviour. SS-PC can be defined for individual subscribers or groups, and the priority can apply to individual calls or group calls. For a buyer or integrator, this means the network must support storing priority profiles and applying them consistently when calls are made.

The service uses separate information flows for the main management actions:

• DEFINE and DEFINE-ACK for creating priority definitions
• ASSIGN and ASSIGN-ACK for delivering a definition to a user A terminal, if supported
• ACTIVATE and ACTIVATE-ACK for turning a stored definition on
• DEACTIVATE and DEACTIVATE-ACK for turning it off
• INTERROGATE and INTERROGATE-ACK for reading back stored priorities

These flows matter because they show which operations are optional and where acknowledgements are expected.

The call setup part is also important. The calling party requests a priority with PRIORITY1, and the SwMI returns the applied priority with PRIORITY2. The SwMI may change the requested priority if it was not authorised, if no priority was requested, or if the operator chooses to override it. In practice, this is the point where the network enforces local policy.

Clause 5 also covers ISI handling. SS-PC definitions and call priorities can travel between TETRA systems, and the document says that the general supplementary-service transfer principles over the ISI apply. This matters for users who roam or for networks that interconnect.

Clause 6 allocates the FEs to physical equipment. For SS-PC management, the SwMI and MS/LS side functions are optional or mandatory depending on the role, while SS-PC operation uses mandatory SwMI, MS and LS functions. This helps specify where the feature must be implemented.

Clause 7 addresses inter-working and migration. A home SwMI may exchange an SS-PC profile with a visited SwMI during user migration, and the visited system may return a modified temporary profile. That is relevant for roaming behaviour and cross-network service continuity.

What terms does SIST EN 300 392-11-10 V1.1.1:2003 define?

• authorized user - A user allowed to define, activate, deactivate and interrogate SS-PC.
• call controlling SwMI - The originating SwMI for an individual call, or the group home SwMI for a group call.
• priority level - A pre-agreed value assigned to an ITSI or GTSI to control access to resources during congestion.
• userA - The calling party that invokes or generates SS-PC.
• userB - The called party in a call where SS-PC is used.
• SwMI - Switching and Management Infrastructure, the network control part that manages the service.
• ISI - Inter-System Interface, used for SS-PC information flows between TETRA systems.

Who uses SIST EN 300 392-11-10 V1.1.1:2003?

SIST EN 300 392-11-10 V1.1.1:2003 is used by TETRA network operators, SwMI vendors, terminal vendors and system integrators. They use it to implement priority handling in call setup, roaming and inter-system signalling.

It is also relevant to engineering, quality and procurement teams that need to check whether a TETRA solution supports SS-PC management, terminal indications, and interworking across multiple TETRA systems.

What changed in SIST EN 300 392-11-10 V1.1.1:2003 from the previous edition?

The document history records that the text was first handled as ETS 300 392-11-10 and was converted into an EN during the vote process. The published version is V1.1.1.

Which standards are used with SIST EN 300 392-11-10 V1.1.1:2003?

• EN 300 392-2 - Defines the TETRA Air Interface and the call priority parameter carried in circuit mode basic service information flows.
• ETS 300 392-9 - Gives the general requirements for supplementary services, including error handling.
• ETS 300 392-3-5 - Covers Inter-System Interface mobility management, which supports the roaming-related SS-PC profile exchange.
• EN 300 392-12-10 - Gives the stage 3 specification and service primitives for SS-PC.
• ETS 300 392-12-16 - Defines Pre-emptive Priority Call (PPC), which is related but distinct from SS-PC.
• ISO/IEC 11574:2000 - Provides the CC and CCA concepts used in the functional model.

What does the SIST EN 300 392-11-10 V1.1.1:2003 document contain?

The document contains a functional model, information-flow definitions, and service primitives for SS-PC. It includes tables that list the elements carried in DEFINE, ASSIGN, ACTIVATE, DEACTIVATE and INTERROGATE flows, and figures that show example sequences for definition, interrogation and call operation.

It also contains the actions assigned to each functional entity, including how FE1, FE21, FE25, FE3 and FE5 handle requests, acknowledgements and call priority values. For implementers, these sections are the practical core of the standard because they show what each side must send, receive and display.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prizemni snopovni radio (TETRA) – Govor in podatki (V+D) – 11. del: Dopolnilne storitve stopnje 2 – 10. poglavje: Prednostni klic (PC)Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 11: Supplementary services stage 2; Sub-part 10: Priority Call (PC)33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:EN 300 392-11-10 Version 1.1.1SIST EN 300 392-11-10 V1.1.1:2003en01-december-2003SIST EN 300 392-11-10 V1.1.1:2003SLOVENSKI
STANDARD
ETSIEN300392-11-10V1.1.1(2001-05)EuropeanStandard(Telecommunicationsseries)TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part11:Supplementaryservicesstage2;Sub-part10:PriorityCall(PC)SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)2ReferenceDEN/TETRA-03A-11-10Keywordsradio,tetraETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74Functionalmodel.84.1Functionalmodeldescription.84.2Descriptionoffunctionalentities.94.2.1UserA'sfunctionalentity,FE1.94.2.2SS-PCfunctionalentityintheindividualorgrouphomeSwMI,FE21.104.2.3SS-PCFEinthecontrollingSwMI,FE21.104.2.4SS-PCFEincalleduservisitedSwMIorparticipatingSwMI,FE25.104.2.5Authorizeduser'sFE,FE3.104.2.6UserB's(calledparty)FE,FE5.104.3Relationshipoffunctionalmodeltobasiccallfunctionalmodel.115Informationflows.115.1Definitionofinformationflows.115.1.1Definition.125.1.1.1DEFINE.125.1.1.2DEFINE-ACK.135.1.1.3ASSIGN.135.1.1.4ASSIGN-ACK.135.1.2Activation/deactivation.145.1.2.1ACTIVATE.145.1.2.2ACTIVATE-ACK.145.1.2.3DEACTIVATE.155.1.2.4DEACTIVATE-ACK.155.1.3Interrogation.155.1.3.1INTERROGATE.155.1.3.2INTERROGATE-ACK.165.1.4Operationandinvocation.165.1.4.1PRIORITY1.165.1.4.2PRIORITY2.165.1.5InformationflowsbetweendifferentTETRAsystems.165.2RelationshipofSS-PCinformationflowstootherinformationflows.175.3Serviceprimitives.175.4Informationflowsequences.175.4.1Definition.185.4.1.1DefinitionofSS-PCwhendefinitionissenttouserA.185.4.1.2Definitionwhentheauthorizeduserisinavisitedsystem.195.4.1.3DefinitionwhenuserAisinavisitedsystem.195.4.2Interrogation.205.4.3Activation.215.4.4Deactivation.215.4.5Functionalentityactions.215.4.5.1FunctionalentityactionsofFE1.215.4.5.2FunctionalentityactionsofFE21.215.4.5.3FunctionalentityactionsofFE3.225.4.5.4ISIFunctionalentityactionsofFE25.225.4.6OperationforcallwithinoneTETRAsystem.225.4.7OperationforcallinitiatedoverInter-SystemInterface(ISI).23SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)45.4.8Functionalentityactions.235.4.8.1FunctionalentityactionsofFE1.235.4.8.2FunctionalentityactionsofFE21.235.4.8.3FunctionalentityactionsofFE25.235.4.8.4FunctionalentityactionsofFE5.246AllocationofFEstophysicalequipment.247Inter-workingconsiderations.247.1Managementandoperation.247.2Migration.24History.25SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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)hasbeenproducedbyETSIProjectTerrestrialTrunkedRadio(TETRA).ThepresentdocumenthadbeensubmittedtoPublicEnquiryasETS300392-11-10.DuringtheprocessingforVote,itwasconvertedintoanEN.Thepresentdocumentispart11ofamulti-partdeliverablecoveringVoiceplusData(V+D),asidentifiedbelow:Part1:"Generalnetworkdesign";Part2:"AirInterface(AI)";Part3:"InterworkingattheInter-SystemInterface(ISI)";Part4:"Gatewaysbasicoperation";Part5:"PeripheralEquipmentInterface(PEI)";Part6:"LineconnectedStations(LS)";Part7:"Security";Part9:"Generalrequirementsforsupplementaryservices";Part10:"Supplementaryservicesstage1";Part11:"Supplementaryservicesstage2";Part12:"Supplementaryservicesstage3";Part13:"SDLmodeloftheAirInterface(AI)";Part14:"ProtocolImplementationConformanceStatement(PICS)proformaspecification;TS100392-15:"TETRAfrequencybands,duplexspacingsandchannelnumbering".NationaltranspositiondatesDateofadoptionofthisEN:25May2001DateoflatestannouncementofthisEN(doa):31August2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):28February2002DateofwithdrawalofanyconflictingNationalStandard(dow):28February2002SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)61ScopeThepresentdocumentdefinesthestage2specificationsoftheSupplementaryServicePriorityCall(SS-PC)fortheTerrestrialTrunkedRAdio(TETRA).TheSS-PCisdefinedtoenableausertohavepreferentialaccesstothenetworkresourcesinaTETRAsystemintimesofcongestion.TheSS-PCappliesforthebasicservices:circuitmodecalls(speechordata).TheSS-PCspecifiesthedefinition,activation,deactivationandinterrogationfortheusageoflowandhighcallprioritiesintheTETRAsystem.TheSS-PCoperationsaredefinedforSwitchingandManagementInfrastructure(SwMI),fortheMobileStation(MS)andfortheLineStation(LS).SS-PCisdefinedforsubscribersofoneTETRAsystem,butthesubscribersmaybelocatedinseveralTETRAsystemsandtheinformationflowsmaybedeliveredovertheInterSystemInterface(ISI).SS-PCmayalsobeinvokedforbasicserviceswithinoneTETRAsystemorforbasicservicesthatextendoverISItoseveralTETRAsystems.Thepre-emptivepriorities,Man-MachineInterface(MMI)andchargingprinciplesareoutsideofthescopeofthepresentdocument.Stage2describesthefunctionalcapabilitiesofthesupplementaryserviceintroducedinstage1description.Stage2identifiesthefunctionalcapabilitiesforthemanagementandoperationoftheserviceintheSwMI,intheMSandintheLS.Stage2describesalsotheinformationflowsexchangedbetweentheseentitiesandtheflowssentovertheISI.NOTE:Thestage2descriptionisfollowedbythestage3description,whichspecifiestheencodingrulesfortheinformationflowsandprocessbehaviourforthedifferententitiesintheSwMI,theMSandLS.AspectsrelatingtoallsupplementaryservicesaredetailedinETS300392-9[2].2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN300392-2(V2.3.2):"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part2:AirInterface(AI)".[2]ETSIETS300392-9:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part9:Generalrequirementsforsupplementaryservices".[3]ETSIETS300392-3-5:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part3:InterworkingattheInter-SystemInterface(ISI);Sub-part5:AdditionalNetworkFeatureforMobilityManagement(ANF-ISIMM)".[4]ETSIEN300392-12-10:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part12:Supplementaryservicesstage3;Sub-part10:PriorityCall(PC)".[5]ISO/IEC11574(2000):"Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-PrivateIntegratedServicesNetwork-Circuit-mode64kbit/sbearerservices-Servicedescription,functionalcapabilitiesandinformationflows".[6]ETSIETS300392-12-16:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part12:Supplementaryservicesstage3;Sub-part16:Pre-emptivePriorityCall(PPC)".SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)73Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:authorizeduser:userwhoisauthorizedtodefine,activate,deactivateandinterrogatetheSS-PCcallcontrollingSwMI:inanindividualcallthecalloriginatingSwMIandinagroupcallthehomeSwMIofthegroupprioritylevel:pre-agreedvalueallocatedtoeachmobileITSIorGTSIonapercallbasisItisusedtodeterminepriorityaccesstonetworkresourcesintheeventofnetworkcongestion.userA:callingparty,thepartythatinvokesorgeneratesinvocationofSS-PCuserB:calledpartyinacallforwhichSS-PCisoperated3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:CCbasicserviceCallControlfunctionalentityCCAbasicserviceCallControlfunctionalentityAgentNOTE:CCandCCAareappliedasdefinedinISO/IEC11574[5].FEFunctionalEntityGTSIGroupTETRASubscriberIdentityISDNIntegratedServicesDigitalNetworkISIInter-SystemInterfaceITSIIndividualTETRASubscriberIdentitySS-PCSupplementaryServicePriorityCallSS-PPCSupplementaryServicePre-emptivePriorityCallSDLSpecificationandDescriptionLanguageSSSupplementaryServiceSwMISwitchingandManagementInfrastructureTETRATerrestrialTrunkedRadioSIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)84Functionalmodel4.1FunctionalmodeldescriptionThefunctionalmodeldescribesthefunctionalcharacteristicsoftheFunctionalEntities(FEs)involvedinthemanagementandoperationofSS-PC.ThefunctionalmodelshallcomprisethefollowingFEs:• FE1userA's(callingparty's)FE;• FE21SS-PCFEinhomeSwMIorcontrollingSwMI;NOTE1:Duringdefinition,activation,deactivationandinterrogationrequest,FE21mayeitherbeuserA'shomeSwMIoragrouphomeSwMI.Duringinvocationandoperation,FE21willbethecontrollingSwMIoftheprioritycallthathasbeeninitiated.• FE3authorizeduser'sFE;• FE5userB's(calledparty's)FE;NOTE2:CalledpartyinacallinwhichSS-PCisoperated.• FE25SS-PCFEinuserB'sSwMI;CCCallControlFEinSwMI.CCACallControlAgentFEinMS/LS.ThefollowingrelationshipsshallexistbetweentheseFEs:-rabetweenFE1andFE21/FE25;-rbbetweenFE21andFE25;-rcbetweenFE21andFE3;-rdbetweenFE21/FE25andFE5.Figure1showstheseFEsandrelationshipsforthemanagementpartandfigure2fortheoperationalpart.homevisitedsystemsystemrcrbrcFE3FE21FE25FE3authorizedSS-PCFESS-PCFEauthorizeduserinsystem1insystem2userraraFE1FE1userAuserAFigure1:TherelationsandthefunctionalentitiesofthemanagementpartofSS-PCSIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)9homevisitedsystemsystemrarbraFE1FE21FE25FE1SS-PCFESS-PCFEinsystem1insystem2rdrdFE5FE5userBuserBuserAuserAFigure2:TherelationsandfunctionalentitiesoftheoperationalpartofSS-PC4.2Descriptionoffunctionalentities4.2.1UserA'sfunctionalentity,FE1ThefunctionaltasksofFE1fordefinitionandinterrogationshallbethefollowing:-asanoption,theMS/LSmaysupportreceptionofSS-PCdefinitionfromFE21.Uponacceptance,FE1shallpasstheSS-PCdefinitionrequest,totheuserapplicationandacknowledgetheSS-PCdefinition,ifFE21hasrequestedthis;-asanoption,theMS/LSmaysupportsSS-PCinterrogation,FE1shallpasstheSS-PCinterrogationrequesttoFE21,whentheuserapplicationissuesit.UponreceptionoftheinterrogationresponsefromFE21,FE1shallpassittotheuserapplication.ThefunctionaltasksforoperationofFE1forapriorityindividualorgroupcallrequestshallbeasfollows:-uponreceptionoftheSS-PCinvocationfromtheuserapplicationwithinacallset-up,FE1shallsendtheSS-PCinvocationtotheSwMI(FE21)withthecallset-up;-uponreceptionofaSS-PCconfirmationfromFE21,FE1shallpasstheSS-PCconfirmationtotheuserapplication;-whenmigratedintoavisitedsystemtheuserapplicationshalluse"Prioritynotdefined"inthecallsetupuntiladefinitionisprovidede.g.bydefaultordownloaded.NOTE:Itisoutsideofthepresentdocumenthowdefaultvaluesforthehomesystemareallocated.SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)104.2.2SS-PCfunctionalentityintheindividualorgrouphomeSwMI,FE21ThefunctionaltasksofFE21fordefinition,activation,deactivationandinterrogationshallbethefollowing:-asanoption,FE21supportsSS-PCdefinition,FE21shallverifytheserequestwhenreceivedfromFE3andiffoundvalid,savethisinformationandacknowledgeittoFE3;-asanoption,FE21supportsSS-PCactivationordeactivation,FE21shallverifytheserequestwhenreceivedfromFE3andiffoundvalid,savethisinformationandacknowledgeittoFE3;-asanoption,ifFE3requesteddownloadingofSS-PCdefinitiontoFE1(s),FE21shallthensendthecorrespondingrequeststotheconcernedFE1sandmayreceivetheiracknowledgements;-asanoption,atthereceptionofanSS-PCinterrogationrequestfromeitherFE3orFE1,FE21shouldverifytherequestandsendtheresponsetoFE3orFE1.IfFE21doesnotsupportinterrogation,anerrorindicationshallbesentinresponsetotherequestingentity.4.2.3SS-PCFEinthecontrollingSwMI,FE21ThefunctionaltasksforoperationofFE21forapriorityindividualorgroupcallshallbeasfollows:-whenFE21receivesacallset-uprequestwiththeSS-PCinvocation,FE21shallverifythereceivedpriorityandchangeit,ifneeded;-FE21shallsendtheSS-PCcallset-up,withitspriorityvaluetothecalledparty/parties(FE5);-iftheSS-PCcallattempthasbeensuccessful,FE21shouldsendtheSS-PCprioritytothecallingparty.4.2.4SS-PCFEincalleduservisitedSwMIorparticipatingSwMI,FE25TheyarenofunctionaltasksofFE25fordefinition,activation,deactivationandinterrogation.NOTE:Ifauthoriseduser(FE3)ismigratedtoavisitedSwMIandmakesadefinitionorinterrogationrequestthatappliestoasubscriberidentitybelongingtoanothersystem,FE25shallforwardtherequesttoFE21.WhenFE25receivesaresponsetotherequestfromFE21,itshallsendtheresponsetoFE3,refertoETS300392-9[2]forfurtherdetails.ThefunctionaltasksforoperationofFE25shallexistforbothindividualandgroupcalls.Thesetasksshallthenbethefollowing:-whenFE25receivesacallset-upindicationfromFE21withtheSS-PCinvocation,FE25shallnotchangethereceivedpriorityvalue.However,itmayapplyadifferentinternalpriorityvalueforallocatingitsownresourcesforthiscall.FE25shallsendtheSS-PCcallset-up,withthepriorityvaluereceivedfromFE21,tothecalledparty/parties.4.2.5Authorizeduser'sFE,FE3Iftheauthorizedusersupportstheoptionaldefinitionand/oractivation/deactivationand/orinterrogationprocedures,FE3functionaltasksshallbethefollowing:-uponreceptionoftheSS-PCdefinition,activation,deactivationorinterrogationrequestsfromtheuserapplication,FE3shallsendthemtoFE21;-uponreceptionoftheSS-PCdefinition,activation,deactivationandinterrogationresponsesfromFE21,FE3shallpassthemtotheuserapplication.4.2.6UserB's(calledparty)FE,FE5ThefunctionaltasksofFE5shallbethefollowing:-uponreceptionofanincomingSS-PCcallattempt,FE5shallindicatetheSS-PCpriorityofthecalltotheuserapplication.SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)114.3RelationshipoffunctionalmodeltobasiccallfunctionalmodelInthecaseofSS-PCinvocation,FE1shallbecollocatedwithCCA.InthecaseofSS-PCinvocationandoperation,FE2xshallbecollocatedwithCC.InthecaseofSS-PCoperation,FE5shallbecollocatedwithCCA.Figure3showsthedifferentrelationshipsthatmayexistbetweenFEsandCC/CCA.homesystemFE1raFE21rbFE25raFE1CCACCCCCCAuserASS-PCFESS-PCFEuserAinsystem1insystem2FE5rdrdFE5CCACCAuserBuserBvisitedsystemFigure3:TherelationshipsbetweenthebasicserviceandSS-PCfunctionalentities5Informationflows5.1DefinitionofinformationflowsInthetableslistingtheelementsintheinformationflows,thecolumnheader"Type"indicateswhichoftheserviceelementsareMandatory(M),Conditional(C)orOptional(O).Iftypeisconditional,theconditionsarestated.NOTE:Itispossiblethatthereisnotaone-to-onemappingbetweenaserviceelementandProtocolDataUnits(PDUs)orprimitiveelementsdescribedinETS300392-12-16[6].SIST EN 300 392-11-10 V1.1.1:2003

ETSIETSIEN300392-11-10V1.1.1(2001-05)125.1.1DefinitionTheauthorizedusermaydefineSS-PCtobesavedinaTETRAsystem.Thedefinitionmaybemadetoasingleindividualsubscriberortoarangeorlistofindividualsubscribers.Thedefinitionmayalsobemadetoonegrouportoarangeorlistofgroups.WhenpriorityvalueshavebeendefinedforanindividualTETRAuser,thepriorityvalueshallapplyforindividualcallsinitiatedbytheuser.Whenpriorityvaluesaredefinedforagroup,thepriorityvalueshallapplyforcallstothisgroupmadebygroupmembers.Forcallsinitiatedbynonegroupmembers,theSwMIshalldeterminewhetherthedefinedpriorityforthegroupshallapplytothecallorwhethersomeotherdefaultvalueshallbeused,i.e.callingusersdefinedpriorityvalue.Thepriorityvaluescanbedefinedseparatelytodifferentbasicservicesoracommonvaluecanbedefinedtotheseservices.Thepriorityshallbedefinedasthehighestvalueforthehighprioritycalls
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