SIST EN 301 454-2 V1.2.2:2003

• Abstract:

  ATS PIXIT for CTM location registration.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.35 - Telephone networks
• 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: T-326
• Ref Project: ETSI EN 301 454-2 V1.2.2 (2000-08) - Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Cordless Terminal Location Registration (CTLR) supplementary service; ECMA-QSIG-CTLR; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma

SIST EN 301 454-2 V1.2.2:2003 is the Slovenian adoption of the ETSI European Standard for Private Integrated Services Network (PISN) inter-exchange signalling for the Cordless Terminal Location Registration (CTLR) supplementary service. It specifies the Abstract Test Suite (ATS) and the partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma used to test implementations at the VPN "b" reference point.

What does SIST EN 301 454-2 V1.2.2:2003 specify?

SIST EN 301 454-2 V1.2.2:2003 specifies the ATS and partial PIXIT proforma for implementations that conform to the stage three standard for the CTLR supplementary service. In practice, it gives the test material and test-data template needed to assess conformance at the inter-exchange signalling level.

The document is organized into the main clauses for scope, references, definitions and abbreviations, abstract test method, untestable test purposes, ATS conventions, ATS-to-TP mapping, and conformance rules. It then provides three normative annexes.

Annex	What it covers
Annex A	Protocol Conformance Test Report (PCTR) proforma
Annex B	Partial PIXIT proforma
Annex C	ATS

What are the key requirements of SIST EN 301 454-2 V1.2.2:2003?

Clause 4 uses a multi-party test method for the Implementation Under Test (IUT). The test system uses Points of Control and Observation (PCOs) named L0 and L1, plus an operator PCO O. This matters because verdicts depend on what is observed at those control points and on how the IUT is configured during the test.

Abstract test method and verdict control

Clause 4 explains that not every component is used in every test case. For the Originating configuration, the IUT is connected only to the Main Test Component (MTC), while the other components are used only for control above the IUT. For the Home configuration, the MTC and the relevant Parallel Test Component (PTC) are used together.

Testability and test language conventions

Clause 5 states that there are no untestable test cases associated with this ATS and abstract test method. Clause 6 says the ATS uses the TTCN version defined in TR 101 101 and uses ASN.1 where it helps to model data structures, restrict types, or reproduce remote-operation component types from the base standards.

Encoding rules for ASN.1

Clause 6.2.2 is important for implementation work because it tells test realizers how to encode ASN.1. The default is ISDN-style direct encoding, not Basic Encoding Rules (BER), unless BER is explicitly indicated. For this ATS, BER applies to ASN.1 type constraints only where the table header says ASN1_Encoding:BER, and Component types use BER.

Mapping from test purposes to test cases

Clause 7 gives a one-to-one mapping between the test purposes in EN 301 454-1 and the test case names in this ATS. That means a laboratory can trace each test case directly back to the corresponding test purpose without guessing which case covers which behavior.

Conformance for reports, PIXIT and ATS

Clauses 8 to 10 define how test reports, PIXIT proformas and executable test suites must conform. Annex A must be used as the PCTR proforma, Annex B as the partial PIXIT proforma, and Annex C as the ATS. This is what makes the document usable in real conformance testing rather than as a general description only.

What terms does SIST EN 301 454-2 V1.2.2:2003 define?

• Abstract Test Suite (ATS) - the set of abstract test cases that define how conformance is checked.
• Protocol Implementation eXtra Information for Testing (PIXIT) - implementation-specific information needed to prepare a test campaign.
• Protocol Conformance Test Report (PCTR) - the report format used to record conformance test results.
• Implementation Under Test (IUT) - the equipment or system being assessed.
• System Under Test (SUT) - the specific system setup, including the IUT and its test environment.
• Point of Control and Observation (PCO) - a control and observation point used to drive and monitor test behavior.
• Tree and Tabular Combined Notation (TTCN) - the notation used for the ATS in Annex C.

Who uses SIST EN 301 454-2 V1.2.2:2003?

Test laboratories use this standard to build and run conformance tests for CTLR implementations. Test realizers use it to produce the Means of Testing (MOT) and the Executable Test Suite (ETS). Equipment vendors and integrators use it to complete the PIXIT, prepare the System Under Test, and verify that their PISN signaling implementation behaves as expected at the VPN "b" reference point.

Which standards are used with SIST EN 301 454-2 V1.2.2:2003?

• ETSI ETS 300 239 - provides the generic functional protocol for supporting supplementary services.
• ETS 300 693 and ETS 300 693/C1 - define the CTLR supplementary service that this test specification targets.
• EN 301 454-1 - gives the Test Suite Structure and Test Purposes (TSS & TP) that correspond to this ATS.
• TR 101 101 - supplies the TTCN version used in the ATS conventions.
• ISO/IEC 8825-1 - defines BER, CER and DER encoding rules used for ASN.1.
• ISO/IEC 9646 - provides the conformance testing methodology and framework used throughout the document.

What does the SIST EN 301 454-2 V1.2.2:2003 document contain?

Annex A provides a fill-in PCTR template with identification, IUT status, static and dynamic conformance summaries, and a test campaign report section. Annex B provides a partial PIXIT form with questions on protocol parameters, timers, and number-information values needed before testing starts.

Annex C contains the ATS itself in both TTCN.GR and TTCN.MP forms. The document also includes a test campaign table with named CTLR test cases, which helps laboratories select, run and record the relevant abstract tests.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VLJQDOL]DFLMVNLSHFLILNDFLMHPrivate Integrated Services Network (PISN); Inter-exchange signalling protocol; Cordless Terminal Location Registration (CTLR) supplementary service; ECMA-QSIG-CTLR; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 301 454-2 Version 1.2.2SIST EN 301 454-2 V1.2.2:2003en01-december-2003SIST EN 301 454-2 V1.2.2:2003SLOVENSKI
STANDARD
ETSIEN301454-2V1.2.2(2000-08)EuropeanStandard(Telecommunicationsseries)PrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;CordlessTerminalLocationRegistration(CTLR)supplementaryservice;ECMA-QSIG-CTLR;Part2:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaSIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)2ReferenceDEN/SPAN-05193-3KeywordsATS,CTM,mobility,PISN,PIXIT,PSS1,QSIG,supplementaryservice,testing,VPNETSI650RoutedesLuciolesF-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 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74AbstractTestMethod(ATM).74.1DescriptionofATMused.75Untestabletestpurposes.86ATSconventions.86.1VersionofTTCNused.86.2UseofASN.1.86.2.1SituationswhereASN.1isused.86.2.2Specificationofencodingrules.97ATStoTPmap.98PCTRconformance.109PIXITconformance.1010ATSconformance.10AnnexA(normative):ProtocolConformanceTestReport(PCTR)proforma.11A.1Identificationsummary.11A.1.1Protocolconformancetestreport.11A.1.2IUTidentification.11A.1.3Testingenvironment.12A.1.4Limitsandreservations.12A.1.5Comments.12A.2IUTconformancestatus.12A.3Staticconformancesummary.12A.4Dynamicconformancesummary.13A.5Staticconformancereviewreport.13A.6Testcampaignreport.14A.7Observations.14AnnexB(normative):PartialPIXITproforma.15B.1Identificationsummary.15B.2Abstracttestsuitesummary.15B.3Testlaboratory.15B.4Client(ofthetestlaboratory).16B.5SystemUnderTest(SUT).16B.6Protocolinformation.17B.6.1Protocolidentification.17SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)4B.6.2IUTinformation.17B.6.2.1Parametervalues.17B.6.2.2Timervalues.17B.6.2.3Numberinformationparametervalues.18AnnexC(normative):AbstractTestSuite(ATS).19C.1TheTTCNGraphicalform(TTCN.GR).19C.2TheTTCNMachineProcessableform(TTCN.MP).19Bibliography.20History.21SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)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)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart2ofamulti-partENcoveringthePrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;CordlessTerminalLocationRegistration(CTLR)supplementaryservice,asidentifiedbelow:Part1:"TestSuiteStructureandTestPurposes(TSS&TP)specification";Part2:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proforma".NationaltranspositiondatesDateofadoptionofthisEN:23June2000DateoflatestannouncementofthisEN(doa):30September2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2001DateofwithdrawalofanyconflictingNationalStandard(dow):31March2001SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)61ScopeThepresentdocumentspecifiestheAbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheVPN"b"referencepointofimplementationsconformingtothestagethreestandardfortheCordlessTerminalLocationRegistrationsupplementaryservice(SS-CTLR)[3].EN301454-1[4]specifiestheTestSuiteStructureandTestPurposes(TSS&TP)relatedtothisATSandpartialPIXITproformaspecification.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIETS300239(1995):"PrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;Genericfunctionalprotocolforthesupportofsupplementaryservices[ISO/IEC11582(1995),modified]".[2]ETSIETS300693(1996):"PrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;CordlessTerminalLocationRegistration(CTLR)supplementaryservice".[3]ETSIETS300693/C1(1998):"PrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;CordlessTerminalLocationRegistration(CTLR)supplementaryservice".[4]ETSIEN301454-1(V1.1):"PrivateIntegratedServicesNetwork(PISN);Inter-exchangesignallingprotocol;CordlessTerminalLocationRegistration(CTLR)supplementaryservice;Part1:TestSuiteStructureandTestPurposes(TSS&TP)specification".[5]ETSITR101101(V1.1):"MethodsforTestingandSpecification(MTS);TTCNinterimversionincludingASN.11994support[ISO/IEC9646-3](SecondEditionMock-upforJTC1/SC21Review)"[6]ISO/IEC8825-1(1995):"Informationtechnology-ASN.1encodingrules:SpecificationofBasicEncodingRules(BER),CanonicalEncodingRules(CER)andDistinguishedEncodingRules(DER)"(seealsoITU-TRecommendationX.690).[7]ISO/IEC9646:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework"(allparts).SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)73Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsgiveninISO/IEC9646[7]apply.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ANFAdditionalNetworkFeatureATMAbstractTestMethodATSAbstractTestSuiteBERBasicEncodingRulesETSExecutableTestSuiteIUTImplementationUnderTestMOTMeansOfTestingMTCMainTestComponentPCOPointofControlandObservationPCTRProtocolConformanceTestReportPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentSUTSystemUnderTestTPTestPurposeTTCNTreeandTabularCombinedNotationVPNVirtualPrivateNetwork4AbstractTestMethod(ATM)4.1DescriptionofATMusedThemulti-partytestmethodisappliedfortestingtheIUT.Thegeneralconfigurationusedisshowninfigure1.APointofControlandObservation(PCO)residesattheserviceaccesspointbetweenlayers2and3inthetestsystem.ThePCOusedbytheMTCisnamed"L0"(forLower)andthePCOusedbythePTCisnamed"L1".ThesePCOsareusedtocontrolandobservethebehaviouroftheImplementationUnderTest(IUT)andtestcaseverdictsareassigneddependingonthebehaviourobservedatthesePCOs.Athird"informal"PCO,called"O"(forOperator)isusedtospecifycontrolbutnotobservationabovetheIUT;eventsatthisPCOareneverusedtogeneratetestcaseverdicts.MessagessentbythetesteratthisPCOexplicitlyindicatetotheoperatoractionswhicharetobeperformedontheSUT.Thisisregardedasapreferredalternativetotheuseoftheimplicitsendevent.SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)8PTC2CPA2MTCPTC1CPA1PCOL0PCOL1Informaltestco-ordinationbyoperatorPCOOIUTFigure1:Multi-partytestmethodNotallcomponentsareusedineverytestcaseandtherelationshipbetweentheIUTandthetesterdependsonthetestgroup:-whentheIUTisintheOriginatingconfiguration,theIUTisonlyconnectedtotheMTC.TheverdictdependsonlyonthebehaviourobservedatthePCObetweentheIUTandtheMTC.ThePTC1isnotused.ThePTC2andPCOOareusedtospecifycontrolabovetheIUT;-whentheIUTisintheHomeconfiguration,thePTC1andtheMTCarebothused.TheverdictisassignedbytheMTCorthePTC1dependingonthetestpurpose.ThePTC2isnotused.5UntestabletestpurposesTherearenountestabletestcasesassociatedwiththisATSandATM.6ATSconventions6.1VersionofTTCNusedTheversionofTTCNusedisthatdefinedinTR101101[5].6.2UseofASN.16.2.1SituationswhereASN.1isusedASN.1hasbeenusedforthreemajorreasons.First,typesdefinedinASN.1canmodelproblemsthat"pure"TTCNcannot.Forinstance,datastructuresmodellingorderedorunorderedsequencesofdataarepreferablydefinedinASN.1.Second,ASN.1providesabetterrestrictionmechanismfortypedefinitionsbyusingsub-typedefinitions.Third,itisnecessarytouseASN.1toreproducethetypedefinitionsforremoteoperationcomponentsasspecifiedinthebasestandardsinASN.1.ThepossibilitytouseTTCNandASN.1incombinationisused,i.e.referringtoanASN.1typefromaTTCNtype.SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)96.2.2SpecificationofencodingrulesThereisavariationintheencodingrulesappliedtoASN.1typesandconstraintsspecifiedinthisATSandthereforeamechanismisneededtodifferentiatetheencodingrules.HoweverthemechanismspecifiedinISO/IEC9646-3/AM2[7]andinTR101101[5]doesnotfacilitatedefinitionoftheencodingrulesasneededforthisATS.AsolutionisthereforeusedwhichisbroadlyinthespiritofISOIEC9646-3/AM2[7]inwhichcommentfieldshavebeenusedasameansofencodingrules.ForASN.1usedinthisATS,twovariationsofencodingrulesareused.OneisthecommonlyknownBasicEncodingRules(BER)asspecifiedinISO/IEC8825-1[6].InthesecondcasetheencodingisaccordingtoISDN,i.e.theASN.1datatypesarearepresentationofstructurescontainedwithintheISDNspecification(basiccall,Genericfunctionalprotocolorindividualsupplementaryservice).Forexample,ifoctetsofaninformationelementarespecifiedinASN.1asaSEQUENCEthenthisshouldbeencodedinanExecutableTestSuite(ETS)asanyotherISDNinformationelementspecifiedusingtabularTTCN.ThisISDNencodingvariationisthedefaultencodingruleforthisATS.ThismeansthatallASN.1constrainttablesareencodedusingISDN(non-BER)encodingunlessstatedotherwise.BERencodingshouldneverbeappliedtoanASN.1constraintwhereBERencodinghasnotbeenspecified.Thisencodingruleissometimesnamed"DirectEncoding".ForBERencoding,anindicationisgiveninthecommentsfieldofthetableheader.ForthisATSsuchindicationsappearintheASN.1typeconstraintdeclarationtablesonly.Inthefirstlineofthetableheadercommentfield,thenotation"ASN1_Encoding:BER"isused.InthisparticularATSallASN.1typeconstraintswhichareoftype"Component"aretobeencodedusingBER.Table1:ASN.1typeconstraintdeclarationshowinguseofencodingvariationASN.1TypeConstraintDeclarationConstraintName:locUpdate_inv_R(USR_NUM:PartyNumber;PINX_NUM:PartyNumber)ASN.1Type:ComponentDerivationPath:EncodingVariation:Comments:ASN1_Encoding:BERReceiveComponent:LocUpdateinvokecomponent,withtypeofBasicService.DescriptionlocUpdate_ComplocUpdate_InvokeComp{invokeID?,--Theinvokeidentifieroperation_valuelocalValue50,--Thevalueforoperationargument{pisnNumberUSR_NUM,basicService?,visitPINXPINX_NUM}}Detailedcomments:7ATStoTPmapTheidentifiersusedfortheTPs(seeEN301454-1[4]arereusedastestcasenames.Thusthereisastraightforwardone-to-onemapping.SIST EN 301 454-2 V1.2.2:2003

ETSIETSIEN301454-2V1.2.2(2000-08)108PCTRconformanceAtestlaboratory,whenrequestedbyaclienttoproduceaPCTR,isrequired,asspecifiedinISO/IEC9646-5[7],toproduceaPCTRconformantwiththePCTRtemplategiveninannexBofISO/IEC9646-5[7].Furthermore,atestlaboratory,offeringtestingfortheATSspecificationcontainedinannexC,whenrequestedbyaclienttoproduceaPCTR,isrequiredtoproduceaPCTRconformantwiththePCTRproformacontainedinannexA.APCTRwhichconformstothisPCTRproformaspecificationshallpreservethecontentandorderingoftheclausescontainedinannexA.ClauseA.6ofthePCTRmaycontainadditionalcolumns.Ifincluded,theseshallbeplacedtotherightoftheexistingcolumns.Textinitalicsmayberetainedbythetestlaboratory.9PIXITconformanceAtestrealizer,producinganexecutabletestsuitefortheATSspecificationcontainedinannexC,isrequired,asspecifiedinISO/IEC9646-4[7],toproduceanaugmentedpartialPIXITproformaconformantwiththispartialPIXITproformaspecification.AnaugmentedpartialPIXITproformawhichconformstothispartialPIXITproformaspecificationshall,asaminimum,havecontentswhicharetechnicallyequivalenttoannexB.TheaugmentedpartialPIXITproformamaycontainadditionalquestionsthatneedtobeansweredinordertopreparetheMeansOfTesting(MOT)foraparticularIUT.Atestlaboratory,offeringtestingfortheATSspecificationcontainedinannexC,isrequired,asspecifiedinISO/IEC9646-5[7],tofurtheraugmenttheaugmentedpartialPIXITproformatoproduceaPIXITproformaco
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