SIST EN 302 091-1 V1.1.3:2005

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No. 7 (SS7); Prenegotiation; Part 1: Protocol specification

Procedures for prenegotiation of bearer connections and bearer connect ion parameters at call control level prior to the establishment of tho se bearer connections by bearer control; specification of a prenegotia tion operation; applicable at an interface at reference point TB,, coi ncident SB and TB or QB  This WPS is an update of an earlier WPS drafted in March 1996, work is carried out in cooperation with ECMA TC 32 TG 15

Širokopasovno digitalno omrežje z integriranimi storitvami (B-ISDN) in širokopasovno zasebno omrežje z integriranimi storitvami (B-PISN) – Digitalna naročniška signalizacija št. 2 (DSS2), širokopasovna signalizacija med centralami (B-QSIG) in signalizacija št. 7 (SS7) – Predpogajanje – 1. del: Specifikacija protokola

General Information

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.35 - Telephone networks
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EN 302 091-1 V1.1.3 (1999-11) - Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No. 7 (SS7); Prenegotiation; Part 1: Protocol specification

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SHFLILNDFLMDSURWRNRODBroadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No. 7 (SS7); Prenegotiation; Part 1: Protocol specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 302 091-1 Version 1.1.3SIST EN 302 091-1 V1.1.3:2005en01-januar-2005SIST EN 302 091-1 V1.1.3:2005SLOVENSKI
STANDARD



SIST EN 302 091-1 V1.1.3:2005



ETSIEN302091-1V1.1.3(1999-11)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Prenegotiation;Part1:ProtocolspecificationSIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)2ReferenceDEN/SPS-05131-1(jd090ie0.PDF)KeywordsB-ISUP,broadband,ISDN,ISPBX,protocol,QSIG,SS7,B-ISDN,DSS2,B-QSIGETSIPostaladdressF-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,thereferenceshouldbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute1999.Allrightsreserved.SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitions.73.1Externaldefinitions.73.2Additionaldefinitions.74Abbreviations.75Description.85.1Overview.85.2ProtocolmodelforPRN.96Operationalrequirements.97Primitivedefinitionsandstatedefinitions.107.1Serviceprimitives.107.2PRNstates.107.2.1PRNIdle.107.2.2PRNInitiated.107.2.3PRNDelivered.107.2.4PRNPresent.107.2.5PRNReceived.108Codingrequirements.108.1AbstractdefinitionofthePRNoperations.109PRNprocedures.129.1General.129.2ProceduresatanoriginatingorterminatingCCentity.129.2.1InvokingthePRNoperationbytheinitiatingCCentity.129.2.1.1InvocationofPRN-relationtocallestablishment.139.2.1.2InvocationofPRN-relationtobearerconnectionestablishment.139.2.1.3ContentsofthePRNproposal.139.2.2RespondingtothePRNinvocation.159.2.3CompletionofPRN.169.2.4Errorhandling.169.2.5Crossingofbearerestablishmentmessageswithprenegotiation-relatedAPDUs.169.3ProceduresatatransitCCentity.1610Interactions.1611InterworkingwithnetworksnotsupportingPRN.1711.1CallsfromothernetworkstoanetworksupportingPRN.1711.2CallstoothernetworksnotsupportingPRN.17SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)412SDLDiagrams.17AnnexA(informative):Informationflowdiagrams.23A.1Prenegotiation.23A.2PRNwithoptionalPRNAlert.24AnnexB(informative):Objectidentifiersdefinedinthepresentdocument.25Bibliography.26History.27SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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)hasbeenproducedbyETSITechnicalCommitteeSignallingProtocolsandSwitching(SPS)incollaborationwithECMATC32-TG15.Thepresentdocumentispart1ofamulti-partstandardcoveringtheDigitalSubscriberSignallingSystemNo.2(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7)protocolspecificationforBroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN)Prenegotiation,asdescribedbelow:Part1:"Protocolspecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specification";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecification".NationaltranspositiondatesDateofadoptionofthisEN:5November1999DateoflatestannouncementofthisEN(doa):29February2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2000DateofwithdrawalofanyconflictingNationalStandard(dow):31August2000SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)61ScopeThepresentdocumentspecifiesthesignallingprotocolforthepurposeofprenegotiationattheQB,SB,TBandco-incidentSB/TBreferencepointswithin,betweenandattheaccesstoBroadbandPrivateIntegratedServicesNetworksandwithin,betweenandattheaccesstopublicEuropeanBroadbandIntegratedServicesDigitalNetworks.Theprotocoloperatesbetweentwoadjacentcallcontrolentities.Theprotocolisapplicableinaseparatedcallandbearer(connection)controlenvironmentforthesupportofcallshavingnone,oneormultiplebearers.Theprotocolisapplicabletoatwo-partycalloramulti-partycall.However,prenegotiationisperformedbetweentwoparties.Incaseofmulti-partyconnections(point-to-multipointconnections),prenegotiationmaybeperformedbetweentherootandthefirstparty.TheQBreferencepointisdefinedinISO/IEC11579-1[11].TheSBandTBreferencepointsaredefinedinITU-TRecommendationI.327[12].ThepresentdocumentisbasedonthetransportcapabilitiesasdefinedinETS300796-1[4]andECMA-254[1],andiscloselyrelatedtothecallcontrolprotocolspecificationasdefinedinEN302092-1[5].Thepurposeofprenegotiationasspecifiedinthepresentdocumentistoallowausertocheckcompatibilityandavailabilityattheremoteuserwithregardtooneormoreconnectionstheuserintendstoestablishduringthelifetimeofthecall,withoutreservingconnection-orientedresourcesinthenetwork.Reservationofconnection-orientedresourcesattheremoteuserisoutsidethescopeofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ECMA-254:"B-PISN-Inter-ExchangeSignallingProtocol-GenericFunctionalProtocol(B-QSIG-GF)".[2]ISO/IEC13247:"Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-BroadbandPrivateIntegratedServicesNetwork-Inter-exchangesignallingprotocol-Basiccall/connectioncontrol".[3]EN300443-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforbasiccall/bearercontrol;Part1:Protocolspecification[ITU-TRecommendationQ.2931(1995),modified]".[4]ETS300796-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Genericfunctionalprotocol;Coreaspects;Part1:Protocolspecification[ITU-TRecommendationQ.2932.1(1996),modified]".[5]EN302092-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part1:Protocolspecification".[6]EN302093-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment;Part1:Protocolspecification".SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)7[7] ITU-TRecommendationX.680:"Informationtechnology-AbstractSyntaxNotationOne(ASN.1):Specificationofbasicnotation".[8] ITU-TRecommendationX.690:"Informationtechnology-ASN.1encodingrules:SpecificationofBasicEncodingRules(BER),CanonicalEncodingRues(CER)andDistinguishedEncodingRules(DER)".[9] ITU-TRecommendationX.880:"Informationtechnology-Remoteoperations:concepts,modelandnotation".[10] ITU-TRecommendationZ.100:"CCITTspecificationanddescriptionlanguage(SDL)".[11] ISO/IEC11579-1:"Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Privateintegratedservicesnetwork-Part1:ReferenceconfigurationforPISNExchanges(PINX)".[12] ITU-TRecommendationI.327:"B-ISDNfunctionalarchitecture".3 Definitions3.1 ExternaldefinitionsThedefinitionsusedinECMA-254[1],ISO/IEC13247[2],EN300443-1[3],ETS300796-1[4]andEN302092-1[5]apply.3.2 AdditionaldefinitionsForthepurposesofthepresentdocumentthefollowingadditionaldefinitionapplies:prenegotiation:useractionofcheckingcompatibilityandavailabilityattheremoteuserwithregardtooneormorebearerconnectionstheuserintendstoestablishduringthelifetimeofthecall,withoutalreadyreservingbearerconnection-orientedresourcesinthenetwork4 AbbreviationsForthepurposesofthepresentdocument,theabbreviationsusedin[1],[2],[3],[4],[5]and[6]apply.Inaddition,thefollowingabbreviationsareused:CC CallControlPRN Prenegotiationmp modificationpossible(9.2.1.3,figure2)T/F True/False(9.2.1.3,figure2)UM UserMandatory(9.2.1.3,figure2)UO UserOptional(9.2.1.3,figure2)SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)85Description5.1OverviewThepresentdocumentspecifiestheprocedures,messages,informationelementsandcomponentsneededforthesupportofPrenegotiation(PRN).PRNisanoptionalprocedurewhichmaybeinvokedbyeitherthecallingorcalleduserateithertheSBortheco-incidentSB/TBreferencepoint.Inbothcases,itcanonlybeinvokedinconjunctionwithoraftercallestablishment.PRNdoesnotestablishconnections.PRNisperformedbetweentwousers.Incaseofpoint-to-multipointconnections,itmaybeperformedbetweentherootandthefirstparty.ThePRNprotocoloperatesbetweentwoadjacentcallcontrolentities(pointsofcallandbearerco-ordination).ItisnotrequiredthatthenetworkinterpretsandprocessesthecontentsofthePRNoperation,exceptthatincomingcallsegmentidentifierandbeareridentifiershavetobemappedtothecorrespondingvaluesontheoutgoingside.Thenetworkmayeitherrelaytherelatedinformation,orcallcontrolentitiesinthenetwork(s)mayalsobeinvolvedinlookingatvariousparametersofnetworkrelevanceandmaytakeaction/possiblyinterveneinthePRNprocedure.Possibleactions/interventionsofnetworknodesbasedontheinterpretationofthecontentsofthePRNoperationareoutsidethescopeofthepresentdocument.Ingeneral,allconnectionrelatedparametersforanynumberofconnectionscanbeprenegotiated.ThepurposeofPRNistocheckcompatibilityandavailabilitybetweentheuserswithoutalreadyreservingconnection-relatedresourcesinthenetwork.TheresponseofausertoaPRNrequestmaybe:-positive,ifauserisfullycompatiblewiththeparametersproposedbytheremoteparty-inthiscase,theconnectionsmaybeestablishedwiththeparametersasproposedbytheremoteparty;-positive,ifauserisnotfullycompatiblewiththeparametersproposedbytheremoteparty,butsupportsacompatiblealternative/subset-inthiscase,theconnectionsmaybeestablishedwiththoseparameterswhichwereproposedasanalternative;-negative,ifauserisnotcompatiblewiththeparametersproposedbytheremoteparty;-negative,ifauseriscompatiblewiththeparametersproposedbytheremoteparty,butthenegotiatedresourcesarecurrentlyunavailable.NOTE:IfPRNisperformedincombinationwithCallEstablishmenti.e.ifnoconnectionsareexisting/pending,thecallmightbereleasediftheresultofthePRNisnegative.ThePRNproceduresallowausertoreturneitheronlyoneorseveralalternativeacceptableparametersetsperconnection.SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)95.2ProtocolmodelforPRNForPRN,thebasicprotocolmodeloutlinedinfigure1-1ofETS300796-1[4]applies.Figure1showshowPRNfitsintothisbasicmodel.Itshouldbenotedthatfigure1onlyshowsthoseASEswhicharedirectlyrelatedtoPRN.PrenegotiationCallControlROSEGFT-ControlTransportmech.CoordinationfunctionTelecommunicationserviceapplicationSAALe.g.CO-BI(separated)Figure1:PRNwithintheB-QSIG/DSS2protocolmodel6OperationalrequirementsPRNmaybeusedwithinanenvironmentofmulticonnectioncalls.Insuchanenvironment,nospecificoperationalrequirementsexist,andPRNmaybeinvokedaccordingtotheproceduresofsubclause9.2.1.PRNisbasedonthetransportcapabilitiesasdefinedinETS300796-1[4]andECMA-254[1],andonthecallestablishmentproceduresasdefinedinEN302092-1[5].SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)107Primitivedefinitionsandstatedefinitions7.1ServiceprimitivesThefollowingservicesforPRNaredefined:PrenegotiateconfirmedPrenegotiation-AlertunconfirmedErrorindication7.2PRNstatesForthepurposeofPRNthefollowingadditionalstatesexistinaCallControlentity(CCentity).7.2.1PRNIdleNoPRNprocedureinvoked.7.2.2PRNInitiatedThisstateexistsataprecedingCCentitywhenarequestforPRNhasbeensenttothesucceedingCCentitybutnoresponsehasbeenreceived.7.2.3PRNDeliveredThisstateexistsataprecedingCCentitywhenithasreceivedanindicationthatPRNalertinghasbeeninitiated.7.2.4PRNPresentThisstateexistsatasucceedingCCentitythathasnotyetrespondedtoareceivedrequestforPRN.7.2.5PRNReceivedThisstateexistsatasucceedingCCentitywhenPRNalertinghasbeeninitiatedbutthePRNrequesthasnotyetbeenanswered.8Codingrequirements8.1AbstractdefinitionofthePRNoperationsTable1showsthedefinitionoftheoperations,errorsandtypesrequiredforPRNusingASN.1asdefinedinITU-TRecommendationsX.680[7]andusingtheOPERATIONandERRORobjectclassesasdefinedinITU-TRecommendationX.880[9].APDUsbasedontheseoperationsshallbeoftypesinvoke,returnResult,returnErrorandrejectasdefinedintableB.1ofETS300796-1[4].TheBasicEncodingRules(BER)asdefinedinITU-TRecommendationX.690[8]shallbeappliedtotheencodingofAPDUsbasedontheseoperationsanderrors.SIST EN 302 091-1 V1.1.3:2005



ETSIETSIEN302091-1V1.1.3(1999-11)11Table1:PRNoperationsanderrorsPrenegotiation-Operations-and-Errors{itu-tidentified-organizationetsi2091prenegotiation-operations-and-errors(1)}DEFINITIONSAUTOMATICTAGS::=BEGINEXPORTSpreNegotiate,PrenegotiationProposal,prenegotiationAlert;IMPORTSOPERATION,ERRORFROMRemote-Operations-Information-Objects{joint-iso-itu-tremote-operations(4)informationObjects(5)version1(0)}CallSegmentIdFROMCC-Operations{itu-tidentified-organizationetsi2092cc-operations(1)}BearerIdFROMCall-Object-Class-Definitions{itu-tidentified-organizationetsi2092call-object-class-definitions(5)};PrenegotiationOperationsOPERATION::={preNegotiate|prenegotiationAlert}preNegotiationOperationsDefinitionsOBJECTIDENTIFIER::={itu-tidentified-organizationetsi2091prenegotiation-operations-definitions(2)}preNegotiateOPERATION::={ARGUMENTSEQUENCE{prenegotiationProposalPrenegotiationProposal,callAssociationCHOICE{callSegmentIdCallSegmentId,callIdCallIdValue}}RESULTSEQUENCE{prenegotiationProposalPrenegotiationProposal,callAssociationCHOICE{callSegmentIdCallSegmentId,callIdCallIdValue}}RETURNRESULTTRUEERRORS{prenegotiateErrorSimple|prenegotiateErrorItemised}SYNCHRONOUSFALSEALWAYSRESPONDSTRUECODEglobal:{preNegotiationOperationsDefinitions1}}CallIdValue::=OCTETSTRING(SIZE(1.3))PrenegotiationProposal::=SEQUENCEOFConnectionProposalConnectionProposal::=SEQUENCE{connectionSubjectConnectionSubject,connectionReferenceConnectionNumber,connectionCallRelationUserMandatoryDEFAULTFALSE,bearerIdBearerIdOPTIONAL}ConnectionSubject::=CHOICE{connectionProposalProposal,connectionAcceptAccept}ConnectionNumber::=INTEGER(1.127)UserMandatory::=BOOLEANAccept::=SEQUENCE{acceptBOOLEAN,alternative
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