SIST EN 300 392-12-8 V1.1.1:2003

• Abstract:

  To define the Stage 3 requirements for TETRA SS Area Selection

• 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
• Mandate: BC-T-344
• Ref Project: ETSI EN 300 392-12-8 V1.1.1 (2000-12) - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 8: Area Selection (AS)

SIST EN 300 392-12-8 V1.1.1:2003 is the Slovenian adoption of ETSI EN 300 392-12-8 Version 1.1.1. It specifies the Stage 3 protocol requirements for the TETRA Voice plus Data supplementary service Area Selection (SS-AS), for the calling user, the serving and home Switching and Management Infrastructure (SwMI), and the other network entities that carry the service.

What does SIST EN 300 392-12-8 V1.1.1:2003 specify?

SIST EN 300 392-12-8 V1.1.1:2003 defines how SS-AS works on the air interface and on the Inter-System Interface (ISI). SS-AS lets the calling user restrict the area in which the connected user in an individual call, or participating users in a group call, may be located.

The standard covers voice plus data individual calls and group calls. It excludes man-machine interface clauses and charging clauses.

The document is organized into scope, references, definitions and abbreviations, service description, signalling protocol, coding requirements, state definitions, signalling procedures, impact of interworking, protocol interactions, and timer values. Annex A gives example message sequences, and Annex B gives Specification and Description Language (SDL) representations of the procedures for the different network entities.

What are the key requirements of SIST EN 300 392-12-8 V1.1.1:2003?

The main requirement is that SS-AS shall be invoked through a selected area number, and the network shall use the corresponding selected area definition when establishing or controlling the call. In practice, the calling user selects an area at call set-up, and the SwMI that knows the definition applies it to the call path.

Service primitives and user roles

Clause 4 defines the service primitives at the TNSS-SAP. The served user MS/LS uses ASSIGN, INVOKE, and INVOCATIONFAILURE primitives, while the authorized user MS/LS uses DEFINE and INTERROGATE primitives with acknowledgement indications. This matters because terminal and application software must support the correct primitive set for either using SS-AS or managing its definitions.

Invocation and call handling

Clause 5 states how SS-AS is carried in call set-up signalling. The U-SETUP PDU can indicate a selected area directly, or an INVOKE PDU can be used to invoke SS-AS toward the relevant SwMI. For group calls, the originating SwMI may also use INVOCATIONQUALIFIER, INVOKEEXT, and INVOKECONFIRM PDUs to coordinate call establishment with the group home and group controlling SwMI.

Area definitions

Clause 5 defines several selected area types: site list, circle, line, rectangle, registered cell, registered location area, area defined by SwMI, and all areas in the SwMI. This is the core configuration work for operators, because the selected area definition is what the network later checks during call set-up and mobility events.

Results and failures

Clause 4 and Clause 5 define the result and failure causes for definition, interrogation, assignment, and invocation. The standard uses causes such as not subscribed, not defined, and not supported. In practice, these causes tell the terminal or management application whether the request failed because the subscription, the selected area number, or a network capability was not available.

Behaviour during mobility and group operation

Clause 5 requires SS-AS behaviour during roaming, migration, and group call restoration. The standard distinguishes the serving user, the group home SwMI, the group controlling SwMI, participating SwMIs, and the terminating SwMI. This is important because SS-AS can continue after call establishment and can prevent call restoration when a user moves outside the selected area.

ISI profile exchange

Clause 5 also defines AS-ISI-PROFILE and SS-AS profile acknowledgement information used with ANF-ISIMM. These profile exchanges carry supported area definitions and update SS-AS settings when a user migrates or when the definition changes. That is the mechanism used to keep SS-AS data aligned across SwMIs.

What terms does SIST EN 300 392-12-8 V1.1.1:2003 define?

• SS-AS - Area Selection, the supplementary service that restricts where call participants may be located.
• SwMI - Switching and Management Infrastructure, the TETRA network entity that controls and manages service handling.
• served user - a user for whom SS-AS is subscribed and who can successfully invoke the service.
• authorized user - the identified user who may define selected areas and interrogate the infrastructure about them.
• geographical definition - a selected area defined by map limits, such as a circle or rectangle.
• site definition - a selected area defined as a list of base stations within one or more SwMI.
• SS-AS operation inhibition - the case where calling or important users are included in the call even if they are outside the selected area.

Who uses SIST EN 300 392-12-8 V1.1.1:2003?

TETRA network operators use this standard to configure SS-AS behaviour in the network and across interconnected SwMIs. Terminal manufacturers use it to implement the MS/LS signalling and the user-side primitives.

It is also used by SwMI vendors, system integrators, and conformance test laboratories. They use it to verify call set-up, area definition exchange, mobility handling, and the service access point behaviour of the served and authorized user functions.

Which standards are used with SIST EN 300 392-12-8 V1.1.1:2003?

The document references ITU-T Recommendation I.130 for the three-stage method used to describe telecommunication services. It uses EN 300 392-2 for the TETRA air interface and EN 300 392-9 for general supplementary service requirements.

For ISI support, it refers to ETS 300 392-3-1, ETS 300 392-3-2, ETS 300 392-3-3, and ETS 300 392-3-5. It also relies on ETS 300 392-10-8 for stage 1, EN 300 392-11-8 for stage 2, and ITU-T Recommendation Z.100 for SDL.

What does the SIST EN 300 392-12-8 V1.1.1:2003 document contain?

The document contains service primitives, PDU definitions, parameter coding, and the rules for encoding selected area numbers and selected area definitions. It also provides state models for the served user MS/LS, served user SwMI, group home SwMI, participating SwMI, terminating SwMI, and authorized user entities.

It includes operational procedures for normal and exceptional cases, together with the interaction of SS-AS with ANF-ISIMM and ANF-ISISD. Annex A gives example signalling sequences, and Annex B gives SDL process models that show the procedures in a form suitable for implementation and protocol analysis.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 8: Area Selection (AS)33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:EN 300 392-12-8 Version 1.1.1SIST EN 300 392-12-8 V1.1.1:2003en01-december-2003SIST EN 300 392-12-8 V1.1.1:2003SLOVENSKI
STANDARD
ETSIEN300392-12-8V1.1.1(2000-12)EuropeanStandard(Telecommunicationsseries)TerrestrialTrunkedradio(TETRA);VoiceplusData(V+D);Part12:Supplementaryservicesstage3;Sub-part8:AreaSelection(AS)SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)2ReferenceDEN/TETRA-03A-12-08KeywordsTETRA,V+D,supplementaryservice,areaselect,data,radio,speech,stage3ETSI650RoutedesLuciolesF-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 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)3ContentsIntellectualPropertyRights.7Foreword.71Scope.82References.83Definitionsandabbreviations.93.1Definitions.93.2Abbreviations.94SS-ASservicedescription.104.1General.104.2SS-ASservicesofferedovertheTNSS-SAP.104.2.1ASSIGNindication.114.2.2DEFINErequest.114.2.3DEFINEACKindication.124.2.4INTERROGATErequest.124.2.5INTERROGATEACKindication.124.2.6INVOKErequest.134.2.7INVOCATIONFAILUREindication.134.3Parameterdescription.145SignallingprotocolforthesupportofSS-AS.165.1SS-ASoperationalrequirements.165.1.1ServeduserMS/LS.165.1.2ServeduserSwMI.165.1.3CalleduserhomeSwMI.175.1.4GrouphomeSwMI.175.1.5GroupcontrollingSwMI.175.1.6ParticipatingSwMI.185.1.7NewparticipatingSwMI.185.1.8TerminatingSwMI.185.1.9AuthorizeduserMS/LS.185.1.10AuthorizeduserSwMI.185.1.11Serveduser/grouphomeSwMI.185.2Codingrequirements.195.2.1SS-ASPDUs.195.2.1.1ASSIGNPDU.195.2.1.2ASSIGNACKPDU.195.2.1.3DEFINEPDU.205.2.1.4DEFINEACKPDU.215.2.1.5INTERROGATEPDU.215.2.1.6INTERROGATEACKPDU.225.2.1.7INVOCATIONFAILUREPDU.225.2.1.8INVOCATIONQUALIFIERPDU.235.2.1.9INVOKEPDU.235.2.1.10INVOKECONFIRMPDU.245.2.1.11INVOKEEXTPDU.245.2.2TETRAPDUinformationelementandsub-elementcoding.245.2.2.1Acknowledgementrequested.245.2.2.2Addresstypeofserveduser/group.255.2.2.3Areaselection.255.2.2.4Assignmentrequested.265.2.2.5Assignmentresult.265.2.2.6Definitionfailurecause.265.2.2.7Definitionresult.265.2.2.8Interrogationfailurecause.27SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)45.2.2.9Interrogationresult.275.2.2.10Invocationfailurecause.275.2.2.11Multipleselectedareanumbers/multipleservedusers/groupsmaskandmultipleselectedareanumbers/multipleservedusers/groupsmaskpresent.275.2.2.12Rangetypeforselectedareanumber(s)/forserveduser(s)/group(s).285.2.2.13Selectedareadefinition.285.2.2.13.1Generalonareadefinition.285.2.2.13.2Areatype.295.2.2.13.3Areabycircle.295.2.2.13.4Areabyline.305.2.2.13.5Areabyrectangular.305.2.2.13.6Areabysitelist.305.2.2.13.7AreadefinedbySwMI.305.2.2.13.8Latitudedirection.305.2.2.13.9Longitudedirection.315.2.2.13.10Registeredcell.315.2.2.13.11Registeredlocationarea.315.2.2.14Selectedareadefinitionlengthindicator.315.2.2.15Selectedareanumber.325.2.2.16Serveduser/groupextension.325.2.2.17Serveduser/groupshortnumberaddress.325.2.2.18Serveduser/groupSSI.325.2.2.19SS-ASinhibitionrequested/supported.325.2.2.20ASPDUtype.335.2.3CodingrequirementsovertheISI.345.2.3.1SS-ASprofile.345.2.3.2SS-ASprofileACKinformationelement.345.2.3.3SS-ASprofileinformationelements.355.2.3.3.1GeneralonSS-ASprofileinformationelements.355.2.3.3.2Void.355.2.3.3.3Resultofprofileexchange.355.2.3.3.4Supportedareadefinitions.355.2.3.4AdditionalcodingrequirementsovertheISI.355.3SS-ASstatedefinition.365.3.1StatesattheserveduserMS/LS.365.3.1.1Statesforinvocationandoperation.365.3.1.2Stateforassignment.365.3.2StatesattheserveduserSwMI.365.3.2.1Statesforinvocationandoperation.365.3.2.2Stateforassignment.375.3.3StatesatthecalleduserhomeSwMI.375.3.4StatesatthegrouphomeSwMI.375.3.4.1Statesforoperation.375.3.4.2Statefordefinitionorinterrogation.375.3.5StatesatthegroupcontrollingSwMI.375.3.6StatesataparticipatingSwMI.375.3.7StatesatanewparticipatingSwMI.385.3.8StatesattheterminatingSwMI.385.3.9StateattheauthorizeduserMS/LS.385.3.10StateattheauthorizeduserSwMI.385.3.11StateattheserveduserhomeSwMI.385.4SS-ASsignallingprocedures.385.4.1ActionsattheserveduserMS/LS.385.4.1.1Normalprocedures.385.4.1.1.1Invocationandoperation.385.4.1.1.2Assignment.395.4.1.2Exceptionalprocedures.405.4.1.2.1Invocation.405.4.1.2.2Assignment.415.4.2ActionsattheserveduserSwMI.415.4.2.1Normalprocedures.415.4.2.1.1Operation.41SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)55.4.2.1.1.1Invocationhandling.415.4.2.1.1.2Individualcall.425.4.2.1.1.3Groupcall.425.4.2.1.1.4Followup.435.4.2.1.2Assignment.445.4.2.2Exceptionalprocedures.445.4.2.2.1Operation.445.4.2.2.1.1Localdetectionofnon-subscription.445.4.2.2.1.2Localdetectionofmissingdefinition.445.4.2.2.1.3ReceptionofROSEReturnErrorAPDU(overtheISI).455.4.2.2.1.3.1Individualcall.455.4.2.2.1.3.2Groupcall.455.4.2.2.1.4ReceptionoftheINVOCATIONFAILUREPDU(overtheISI).465.4.2.2.1.4.1Individualcall.465.4.2.2.1.4.2Groupcall.465.4.2.2.1.6Additionalsendingofnotification.475.4.2.2.2Assignment.475.4.3ActionsatthecalleduserhomeSwMI.475.4.3.1Normaloperationprocedures.485.4.3.2Exceptionaloperationprocedures.485.4.4ActionsatthegrouphomeSwMI.505.4.4.1Normalprocedures.505.4.4.1.1Operation.505.4.4.1.2Definitionorinterrogation.515.4.4.2Exceptionalprocedures.515.4.4.2.1Operation.515.4.4.2.2Definitionorinterrogation.525.4.5ActionsatthegroupcontrollingSwMI.525.4.5.1Normaloperationprocedures.525.4.5.2Exceptionaloperationprocedures.555.4.6ActionsataparticipatingSwMI.565.4.6.1Normaloperationprocedures.575.4.6.2Exceptionaloperationprocedures.575.4.7ActionsatanewparticipatingSwMI.575.4.7.1Normaloperationprocedures.575.4.7.2Exceptionaloperationprocedures.575.4.8ActionsattheterminatingSwMI.575.4.8.1Normaloperationprocedures.585.4.8.2Exceptionaloperationprocedures.585.4.9ActionsatauthorizeduserMS/LS.595.4.9.1Normalprocedures.595.4.9.2Exceptionalprocedures.595.4.10ActionsattheauthorizeduserSwMI.595.4.11Actionsattheserveduser/grouphomeSwMI.605.4.11.1Normalprocedures.605.4.11.1.1Casewheretheserveduser/grouphomeSwMIcoincideswiththeauthorizeduserSwMI.605.4.11.1.2Casewheretheserveduser/grouphomeSwMIisdifferentfromtheauthorizeduserSwMI.605.4.11.2Exceptionalprocedures.605.5SS-ASimpactofinterworkingwithothernetworks.615.5.1SS-ASimpactofinterworkingwithotherTETRAnetworks.615.5.2SS-ASimpactofinterworkingwithexternalnetworks.615.6ProtocolinteractionsbetweenSS-ASandothersupplementaryservicesandANFs.615.6.1InteractionswithISIMobilityManagement(ANF-ISIMM).615.6.1.1Migrationofindividualsubscriber.615.6.1.2SS-ASdefinitionupdatesforindividualsubscriber.625.6.1.3Groupattachment.625.6.1.4Grouplinking.635.6.2InteractionswithISIShortDataService(ANF-ISISD).635.7SS-ASparametervalues(timers).63SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)6AnnexA(informative):Examplesofmessagesequences.64AnnexB(informative):SpecificationandDescriptionLanguage(SDL)representationofprocedures.65B.1SDLrepresentationofSS-ASattheserveduserMS/LS.65B.2SDLrepresentationofSS-ASattheserveduserSwMI.70B.3SDLrepresentationofSS-ASatthecalleduserhomeSwMI.81B.4SDLrepresentationofSS-ASatthegrouphomeSwMI.84B.5SDLrepresentationofSS-ASatthegroupcontrollingSwMI.90B.6SDLrepresentationofSS-ASataparticipatingSwMI.90B.7SDLrepresentationofSS-ASatanewparticipatingSwMI.95B.8SDLrepresentationofSS-ASattheterminatingSwMI.99B.9SDLrepresentationofSS-ASattheauthorizeduserMS/LS.100B.10SDLrepresentationofSS-ASattheauthorizeduserSwMI.102B.11SDLrepresentationofSS-ASattheserveduser/grouphomeSwMI.104History.106SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)7IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).ThepresentdocumenthadbeensubmittedtoPublicEnquiryasETS300392-12-8.DuringtheprocessingforVoteitwasconvertedintoanEN.Thepresentdocumentisamulti-partstandardandwillconsistofthefollowingparts:Part1:"Generalnetworkdesign";Part2:"AirInterface(AI)";Part3:"InterworkingattheInter-SystemInterface(ISI)";Part4:"Gatewaysbasicoperation";Part5:"PeripheralEquipmentInterface(PEI)";Part6:"LineconnectedStation(LS)";Part7:"Security";Part9:"Generalrequirementsforsupplementaryservices";Part10:"Supplementaryservicesstage1";Part11:"Supplementaryservicesstage2";Part12:"Supplementaryservicesstage3";Part13:"SDLModeloftheAirInterface(AI)";Part14:"ProtocolImplementationConformanceStatement(PICS)proformaspecification".NationaltranspositiondatesDateofadoptionofthisEN:1December2000DateoflatestannouncementofthisEN(doa):31March2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2001DateofwithdrawalofanyconflictingNationalStandard(dow):30September2001SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)81ScopeThepresentdocumentdefinesthestage3descriptionoftheSupplementaryServiceAreaSelection(SS-AS)fortheTerrestrialTrunkedRadio(TETRA).SS-ASenablesthecallingusertoestablishacallinrestrictingtheareawheretheparticipatingusersinagroupcallortheconnecteduserinanindividualcallmaybelocated.ManMachineinterfaceandChargingclausesareoutsidethescopeofthepresentdocument.SupplementaryservicespecificationsareproducedinthreestagesaccordingtothemethoddescribedinITU-TRecommendationI.130[1].Thestage1descriptionspecifiestheservicefromtheuser'spointofview(seeETS300392-10-11[8]).Thestage2descriptionidentifiesthefunctionalcapabilitiesandtheinformationflowsneededtosupporttheserviceasspecifiedinitsstage1description(seeETS300392-11-11[9]).Thepresentstage3descriptionspecifiestheprotocolsattheairinterfaceandatthevariousInter-SystemInterfaces(ISI)tosupportSS-AS.NOTE:AccordingtoITU-TRecommendationI.130[1],thestage3descriptionofanytelecommunicationserviceaddressesthenetworkimplementationaspects.Consequentlyitcomprisestwosteps:thespecificationsofallprotocolsatthevariousreferencepointsinvolvedinanyoftheserviceprocedures(notablytheserviceoperation)arethefirststepofthestage3description,andthespecificationsofthefunctionsofthecorrespondingnetworkentitiesareitssecondstep.Thelatterhavenotbeenprovidedsincetheycanbederivedfromthespecificationofthefunctionalentityactionsinthestage2description.ThepresentdocumentisapplicabletoVoiceplusDataindividualcallsorgroupcalls;morespecificallytothefollowingentities:-theMS/LSofthecallinguserinanindividualcalloragroupcall;-theoriginatingSwitchingandManagementInfrastructure(SwMI)inanindividualcalloragroupcall;-thegrouphomeSwMIandtheparticipatingSwMIsforagroupcall;-theterminatingSwMIforanindividualcall;and-optionally,thehomeSwMIofthegrouporoftheMS/LSsinvolved,formanagingthesupplementaryservice.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ITU-TRecommendationI.130(1993):"MethodforthecharacterizationoftelecommunicationservicessupportedbyanISDNandnetworkcapabilitiesofanISDN".[2]ETSIEN300392-2:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part2:AirInterface(AI)".[3]ETSIETS300392-3-1:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part3:InterworkingattheInter-SystemInterface(ISI);Sub-part1:Generaldesign".[4]ETSIEN300392-3-2:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part3:InterworkingattheInter-SystemInterface(ISI);Sub-part2:AdditionalNetworkFeatureIndividualCall(ANF-ISIIC)".SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)9[5]ETSIETS300392-3-3:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part3:InterworkingattheInter-SystemInterface(ISI);Sub-part3:AdditionalNetworkFeatureGroupCall(ANF-ISIGC)".[6]ETSIETS300392-3-5:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part3:InterworkingattheInter-SystemInterface(ISI);Sub-part5:AdditionalNetworkFeatureforMobilityManagement(ANF-ISIMM)".[7]ETSIEN300392-9:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part9:Generalrequirementsforsupplementaryservices".[8]ETSIETS300392-10-8:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part10:Supplementaryservicesstage1;Sub-part8:Areaselection".[9]ETSIEN300392-11-8:"TerrestrialTrunkedRadio(TETRA);VoiceplusData(V+D);Part11:Supplementaryservicesstage2;Sub-part8:AreaSelection(AS)".[10]ITU-TRecommendationZ.100:"CCITTSpecificationandDescriptionLanguage(SDL)".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsofEN300392-9[7]shallapplywiththefollowingmodification:authorizeduser:identifieduserwhoisallowedtodefineselectedareasandtointerrogatetheinfrastructureabouttheexistingdefinedselectedareasserveduser:userforwhomthesupplementaryhasbeensubscribed.ThatusercanthussuccessfullyinvokethesupplementaryserviceserveduserSwMI:SwMIwheretheserveduseriscurrentlyregistered.Inacall(whetheranindividualoragroupcall),theserveduserSwMIistheoriginatingSwMIgeographicaldefinition:definitionofanSS-ASareagivenbylimitsonamap.Inpractice,duetothedifficultytodescribemathematicallyanyareashape,onlycirclesandrectangularareasarespecified.Seesubclause5.2.2.12sitedefinition:definitionofanSS-ASareagivenasalistofbasestationswithinoneormoreSwMI.Suchlistmaybeimplicit,e.g.areadefinedasawholehomeSwMIwithnovisitedSwMI(i.e.noparticipatingSwMIinthecaseofagroupcall,andnootherterminatingSwMIthansuchhomeSwMIinthecaseofanindividualcall).Seesubclause5.2.2.12SS-ASoperationinhibition:callinguserorimportantusersareincludedintothecalleveninthecasethoseareoutsidetheselectedarea3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ANF-ISIGCAdditionalNetworkFeature-Inter-SystemInterfaceGroupCallANF-ISIICAdditionalNetworkFeature-Inter-SystemInterfaceIndividualCallANF-ISIMMAdditionalNetworkFeature-Inter-SystemInterfaceMobilityManagementANF-ISISSAdditionalNetworkFeature-Inter-SystemInterfaceSupplementaryServiceASAreaSelectionGTSIGroupTETRASubscriberIdentityISIInter-SystemInterfaceITSIIndividualTETRASubscriberIdentityLSLineStationMSMobileStationSIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)10PDUProtocolDataUnitROSERemoteOperationServiceElementSDLSpecificationDescriptionLanguageSSSupplementaryServiceNOTE:TheabbreviationSSisonlyusedwhenreferringtoaspecificsupplementaryservice.SSIShortSubscriberIdentitySwMISwitchingandManagementInfrastructure4SS-ASservicedescription4.1GeneralSS-ASenablesthecallingusertoestablishacallinrestrictingtheareawheretheparticipatingusersinagroupcallortheconnecteduserinanindividualcallmaybelocated.ThecallinguserinvokesSS-ASinusingaselectedareanumberwhenhesetsupthecall.Thatnumbercorrespondstoaselectedareathedefinitionofwhichisknownbytheinfrastructure(i.e.someSwMIonthecallpath).Afteragroupcallhasbeenestablished,asanoption,SS-ASmaycontinuetooperatetorestricttheareawheretheparticipatingusersmayroamormigrate,therebybarringthecallrestorationattemptforthatuser.ThisclausedescribestheSS-ASservicesofferedbytheCircuitModeControlEntity(CMCE)attheSupplementaryServicesserviceaccesspoint(TNSS-SAP)oftheTETRAvoiceplusdatalayer3serviceboundaryinaTETRAMobileStation(MS)orTETRALineStation(LS).TheSS-ASserviceaccesspointisusedinconformancetestingasanormativeboundaryinMSsandLSs.NOTE:AsthepresentdocumentonlydealswiththeSS-ASalltheserviceprimitiveshasbeenshownwithoutaTNSS-AS-prefixe.g.theTNSS-AS-DEFINErequestisshortenedintoaDEFINErequest.4.2SS-ASservicesofferedovertheTNSS-SAPNOTE:Asman-machineinterfaceoruserapplicationsareoutsidethescopeofthepresentdocumentserviceprimitivesareusedtodefineinformationexchangetoandfromthestandardizedpartoftheMS/LS.Thoseprimitivesmaybeonlyindirectlyaccessible.TheSS-ASserviceprimitivesattheserveduserMS/LSTNSS-SAPshallbe:-ASSIGNrequest;-INVOKErequest;-INVOCATIONFAILUREindication.TheSS-ASserviceprimitivesattheauthorizeduserMS/LSTNSS-SAPshallbe:-DEFINErequest;-DEFINEACKindication;-INTERROGATErequest;-INTERROGATEACKindication.TheservedusershouldhavethepossibilitytousetheINTERROGATEprimitivesmentionedabove,limitedtoitsownITSIandtoGTSIsofgroupsofwhichheisamember.SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)114.2.1ASSIGNindicationTheASSIGNindicationprimitiveshallbesentovertheserveduserTNSS-SAPbytheMS/LSCMCEtotheserveduserapplicationtoinformitaboutthedefinitionofaselectedareaagainstthecorrespondingselectedareanumberforeitheranITSIallocatedtothatMS/LSortheGTSIofagroupofwhichtheserveduserisamember.Whensupported(sinceitisoptional),theassignmentprocessshallsupportoneselectedareainarequest.Optionallyitmaysupportalistofselectedareasinasinglerequest.TheASSIGNindicationprimitiveshallcontaintheSS-ASparameterslistedintable1.Table1:ParametersfortheprimitiveASSIGNindicationParameterIndicationSelectedareanumber(s)M(seenote1)Selectedareadefinition(s)M(seenote2)Acknowledgementrequestedfromserveduser(s)ONOTE1:Itisoptionaltosupportmorethanoneselectedareanumber.NOTE2:Thereshallbeasmanyselectedareadefinitionsasthereareselectedareanumbers.Whenanacknowledgementisrequestedfromtheserveduser,itshallbesentbytheserveduserMS/LSwithoutinvolvingtheuserapplication(i.e.directly);hencethereisnoASSIGNACKrequestprimitive.4.2.2DEFINErequestTheDEFINErequestprimitiveshallbesentovertheauthorizeduserTNSS-SAPbytheauthorizeduserapplicationtotheMS/LSCMCEtodefineaselectedareaagainstthecorrespondingselectedareanumberforanindividualsubscriberorforagroup.Whensupported(sinceitisoptional),thedefinitionprocessshallsupportoneselectedareaforoneTETRAidentityinarequest.ThatTETRAidentitymaybeeitherthatofanindividualsubscriberorthatofagroup.Optionallythedefinitionprocessmaysupportalistofselectedareasinasinglerequest.Stilloptionallyitmaysupportalistand/orrangeofidentities.TheDEFINErequestprimitiveshallcontaintheSS-ASparameterslistedintable2.Table2:ParametersfortheprimitiveDEFINErequestParameterIndicationAccesspriorityODefinedTETRAidentity/identitiesM(seenote1)Selectedareanumber(s)M(seenote2)Selectedareadefinition(s)M(seenote3)Assignmenttoserveduser(s)requestedOAcknowledgementrequestedfromserveduser(s)C(seenote4)NOTE1:ItisoptionaltosupportmorethanonedefinedTETRAidentity.Thesameselectedareanumberdefinitionsgivenbythefollowingparameters(intheprimitive)shallthenapplytothecorrespondingindividualsubscribersand/orgroups.Inadditionthoseindividualsubscribersand/orgroupsshallthenhavethesamehomeSwMI.NOTE2:Itisoptionaltosupportmorethanoneselectedareanumber.NOTE3:Thereshallbeasmanyselectedareadefinitionsasthereareselectedareanumbers.NOTE4:Suchacknowledgementmayberequestedonlytogetherwiththeassignmenttoserveduser(s).SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)124.2.3DEFINEACKindicationTheDEFINEACKindicationprimitiveshallbesentovertheauthorizeduserTNSS-SAPbytheMS/LSCMCEtotheauthorizeduserapplicationtoinformitoftheresultofapreviousDEFINErequest.IfthepreviousrequesthasbeenaddressedtoaSwMIformorethanoneidentity,thatSwMImaysenditscorrespondingresponseeitherinonesinglerequestwhichappliestoallthoseidentitiesorinmultiplerequests.TheDEFINEACKindicationprimitiveshallcontaintheSS-ASparameterslistedintable3.Table3:ParametersfortheprimitiveDEFINEACKindicationParameterIndicationDefinitionresultM(seenote1)DefinedTETRAidentity/identitiesM(seenote2)Selectedareanumber(s)C(seenotes3and4)NOTE1:ThereshallbeonlyonedefinitionresultperprimitiveiftherearemorethanonedefinedTETRAidentityormorethanoneselectedareanumber.NOTE2:ItisoptionaltosupportmorethanonedefinedTETRAidentity.NOTE3:Conditionalonthedefinitionresultbeingpositive.NOTE4:Itisoptionaltosupportmorethanoneselectedareanumber.4.2.4INTERROGATErequestTheINTERROGATErequestprimitiveshallbesentovertheauthorizeduserTNSS-SAPbytheauthorizeduserapplicationtotheMS/LSCMCEtoknowthedefinitionofaselectedareaagainstthecorrespondingselectedareanumberforanindividualuserorforagroup.Whensupported(sinceitisoptional),theinterrogationprocessshallsupportoneTETRAidentityinarequest.ThatTETRAidentitymaybeeitherthatofanindividualsubscriberorthatofagroup.Optionally,theinterrogationrequestmaybelimitedtothedefinitionofoneormoreselectedareanumbers.TheINTERROGATErequestprimitiveshallcontaintheSS-ASparameterslistedintable4.Table4:ParametersfortheprimitiveINTERROGATErequestParameterRequestAccesspriorityOInterrogatedTETRAidentityMInterrogatedselectedareanumber/numbersO(seenote)NOTE:Maybepresenttolimitthescopeoftheinterrogationtothedefinitionofoneormoreselectedareanumbers.4.2.5INTERROGATEACKindicationTheINTERROGATEACKindicationprimitiveshallbesentovertheauthorizeduserTNSS-SAPbytheMS/LSCMCEtotheauthorizeduserapplicationtoinformitabouttheresultofapreviousINTERROGATErequest.TheSwMIinterrogatedmaysenditsresponseeitherinonesinglerequestwhichgivesthedefinitionofallselectedareanumbers(forwhichtheinterrogationhasbeenplaced)orinmultiplerequests.TheINTERROGATEACKindicationprimitiveshallcontaintheSS-ASparameterslistedintable5.SIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)13Table5:ParametersfortheprimitiveINTERROGATEACKindicationParameterIndicationInterrogationresultM(seenote1)InterrogatedTETRAidentityMSelectedareanumber(s)M(seenote2)Selectedareadefinition(s)M(seenote3)Assignmenttoserveduser(s)requestedOAcknowledgementrequestedfromserveduser(s)C(seenote4)NOTE1:ThereshallbeonlyoneinterrogationresultperprimitiveiftherearemorethanoneinterrogatedTETRAidentityormorethanoneselectedareanumber.NOTE2:Itisoptionaltosupportmorethanoneselectedareanumber.NOTE3:Thereshallbeasmanyselectedareadefinitionsasthereareselectedareanumbers.NOTE4:Suchacknowledgementmayhavebeenrequestedonlytogetherwiththeassignmenttoserveduser(s).4.2.6INVOKErequestTheINVOKErequestprimitiveshallbesentovertheserveduserTNSS-SAPbytheserveduserapplicationtotheMS/LSCMCEtoinvokeSS-AS.ItshallcontaintheSS-ASparameterslistedintable6.Table6:ParametersfortheprimitiveINVOKErequestParameterRequestSelectedareanumberMSwMIwheretheselectedareanumberisdefinedM(seenote2)NOTE1:Thereisnoaccesspriorityparameterintable6sincetheaccesspriorityofthatprimitiveisthesameasthatoftheconcurrentTNSS-SETUPrequest.NOTE2:AddressinginformationparameternotaSS-ASparameter.4.2.7INVOCATIONFAILUREindicationTheINVOCATIONFAILUREindicationprimitiveshallbesentovertheserveduserTNSS-SAPbytheMS/LSCMCEtotheserveduserapplicationtoinformitaboutthefailureofSS-ASinvocation.ItshallcontaintheSS-ASparametergivenintable7.Table7:ParameterfortheprimitiveINVOCATIONFAILUREindicationParametersIndicationInvocationfailurecauseMSIST EN 300 392-12-8 V1.1.1:2003

ETSIETSIEN300392-12-8V1.1.1(2000-12)144.3ParameterdescriptionAccesspriority:lowpriority;highpriority;emergencypriority.Thedefaultvalueforthatparametershallbelowpriority.Thevalueemergencypriorityshouldnotbeusedforthatparameterinanyprimitive.Acknowledgementrequestedfromserveduser(s):acknowledgementofassignmentofareanumberdefinitionstoserveduser(s)requestedfromthat(those)user(s).Assignmenttoserveduser(s)requested:(airinterface)downloadingofareanumberdefinitionsrequestedtobemadetoserveduser(s).Definitionresult:successfulrequest;unsuccessfulrequest.Iftherequesthasbeenunsuccessful,oneofthefollowingreasonsshallbeindicated:rejectedforanyreason;notanauthorizeduser;supplementaryservicenotsubscribedfortheuseraddressed;unknownTETRAidentity;typeofdefinitionnotsupported(seedescriptionofparameterselectedareadefinitionbelowforthemeaningof"typeofdefinition");repetitionofparametersnotsupported;protocolproblem.Interrogationresult:successfulrequest;unsuccessfulrequest.IftheINTERROGATErequesthasbeenunsuccessful,oneofthefollowingreasonsshallbeindicated:rejectedforanyreason;
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