ETSI EN 300 822 V1.2.1 (2001-08)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT); Integrated Services Digital Network (ISDN); DECT/ISDN interworking for intermediate system configuration; Interworking and profile specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 822 Version 1.2.1SIST EN 300 822 V1.2.1:2003en01-december-2003SIST EN 300 822 V1.2.1:2003SLOVENSKI
STANDARD
ETSIEN300822V1.2.1(2001-08)EuropeanStandard(Telecommunicationsseries)DigitalEnhancedCordlessTelecommunications(DECT);IntegratedServicesDigitalNetwork(ISDN);DECT/ISDNinterworkingforintermediatesystemconfiguration;InterworkingandprofilespecificationSIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)2ReferenceREN/DECT-A0197KeywordsDECT,interworking,ISDN,profile,radioETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°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:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)3ContentsIntellectualPropertyRights.7Foreword.7Introduction.71Scope.82References.83Definitionsandabbreviations.103.1Definitions.103.2Abbreviations.123.3Symbols.134Interworkingrequirements.134.1Referenceconfigurationsandinterfaces.134.1.1Referenceconfigurations.134.1.2ISDNinterfaces.144.2Servicerequirements.154.2.1Bearerservicerequirements.154.2.2Teleservicerequirements.154.2.3Generalaspectsonerrorperformance.154.2.4Supplementaryservicerequirements.155Protocolarchitecture.165.1General.166Interworkingprocedures.176.1Proceduraloverview.176.2DECTsignallinglinkmanagement.186.2.1Generaldescription.186.2.2ActivationfromtheISDNnetwork.186.2.3ActivationfromtheISDNterminal.196.2.4Releaseofthesignallinglink.196.3U-planeandB-channelmanagement.206.3.1U-planemanagement.206.3.2B-channelmanagement.226.4L2addressmanagement.236.5Outgoingcallprocedures.236.6Incomingcallprocedures.256.6.1Point-to-multipointconfiguration.256.6.2Point-to-pointconfiguration.276.7Releaseprocedures.296.7.1ReleasefromtheISDNnetwork.296.7.2L2disconnectionfromtheISDNnetwork(point-to-pointonly).306.7.3ReleasefromtheISDNterminal.316.7.4L2disconnectionfromtheISDNterminal.327Physicallayerprocedures.327.1Generalrequirement.327.2MinimumNormalTransmitPower(NTP).327.3Radioreceiversensitivity.327.4Z-fieldrequirement.327.5Slidingcollisiondetection.337.6Synchronizationwindow.338MAClayerprocedures.338.1MAClayersignallingprocedures.338.1.1Downlinkbroadcast.338.1.1.1NTmessage.33SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)48.1.1.2QT-staticsysteminformation.348.1.1.3QT-FPcapabilities.348.1.1.4QTExtendedFPcapabilities.358.1.1.5QT-SARIlistcontents.358.1.1.6Pagingbroadcast:shortpage.368.1.1.7Pagingbroadcast:zeropage.368.1.2Activationofthesignallingconnection.378.1.2.1Generalrequirement.378.1.2.2ActivationfromtheISDNnetwork.378.1.2.3ActivationfromtheISDNterminal.388.1.2.4MBnadvancedconnectioncontrolmessages.398.1.2.5Associatedprocedures.408.1.2.5.1TimerT200management.408.1.2.5.2CounterN200management.408.1.2.6Exceptionalcase.408.1.2.6.1BearersetupfailsortimerT200expiry.408.1.3Releaseofsignallinglink.428.1.3.1MBnreleasemessage.438.1.4DynamicC-planeswitching:MAClayerprocedures.438.1.4.1DynamicswitchingCFtoCS:onlyDIFSinitiated.438.1.4.2DynamicswitchingCStoCF:DIPSinitiated.468.1.4.3DynamicswitchingCStoCF:DIFSinitiated.478.1.4.4DynamicswitchingCSxtoCSy:onlyDIFSinitiated.508.1.4.5DynamicswitchingCSxdoubletoCSxfull:onlyDIFSinitiated.518.1.4.6Associatedprocedures.528.1.4.6.1Associatedprocedures:DIFSside.528.1.4.6.2Associatedprocedures:DIPSside.538.2MACLayerU-planeprocedures.538.2.1U-planeconnectionsetupprocedure.538.2.1.1MBnmessagesadvancedconnectioncontrol.548.2.2U-planeconnectionreleaseprocedure.558.2.2.1MBnreleasemessage.568.3SignallingandU-planeconnections:TimerT201management.568.3.1TimerT201.568.3.2TimerT201expiry.569DLClayerprocedures.579.1DLClayersignallingprocedures.579.1.1ClassBlinkestablishment.579.1.2Associatedprocedure.599.1.2.1Timermanagement.599.1.2.2Re-transmissioncountermanagement.599.1.2.3Multipleframeoperationvariables.599.1.3ClassBacknowledgedinformationtransfer.599.1.3.1AcknowledgementwithanI_frame.609.1.3.2AcknowledgementwithaRR_frame.619.1.3.3AcknowledgementwithanRNR_frame.629.1.3.4AcknowledgementwithanREJ_frame.629.1.4SegmentationofNWKlayermessage.639.1.5Associatedprocedure(s).639.1.5.1Timermanagement.639.1.5.2Timerexpiry.639.1.6Linksuspensionandresumption.639.1.7Linkrelease.639.2DLCLayerU-planeprocedures.649.2.1FU1frameoperation.649.2.2LU7databearerservice.649.2.3LU8service.659.2.3.1Physicallayerservice.659.2.3.2MAClayerservice.659.2.3.3DLClayerservice.65SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)510Networklayerprocedures.6510.1NetworklayerC-planeprocedures.6510.1.1Generaloverview.6510.1.2Establishmentofthesignallingchannel.6610.1.2.1IndirectDIFSinitiatedlinkestablishment.6610.1.2.2DirectDIPSinitiatedlinkestablishment.6710.1.3TransmittingofD-channeldata.6810.2NetworkLayerU-planeprocedures.6810.2.1EstablishmentofDECT-U-planesandtheirswitchingtoB-channels.6810.2.1.1EstablishmentoftheDECT-U-planes.6810.2.1.2SwitchingofU-planetoB-channel.7010.2.2Releaseprocedures.7010.2.3SwitchingoftheB-channel.7110.3Mobilityandsecurityfeatures.7210.3.1Mobilityandsecurityfeatures:additionalrequirements.7211IWUprocedures.7311.1Linkassociationentity.7311.1.1General.7311.1.2Normalprocedures.7311.1.2.1TransferofbroadcastL3messages.7311.1.2.2TransferofL3messagesonapoint-to-pointL2link.7311.1.2.2.1LA-establishment.7311.1.2.2.2LAdatatransfer.7411.1.2.2.3LArelease.7411.1.3Exceptionalhandlingandsupervision.7411.1.3.1RejectionofISDN-L2establishment.7411.1.3.2RejectionofatransferrequestattheC-plane-channel.7411.1.3.3CEI-problems.7511.1.3.4L2-commandcodingproblems.7511.1.4Supervisory.7511.1.4.1MonitoringofISDN-L2linksbytheDIPS.7511.1.5LAEparameters.7511.2Layer3monitoring.7511.3Statemachine.7611.3.1Generaloverview.7611.3.2IWUcallstates.7611.3.3Statetransitions.7611.3.4Parameters.7711.4ActionsuponmissingDECTresources.7811.4.1General.7811.4.2ActionsoftheDIFS.7811.4.2.1Thesignallinglinkcannotbeestablished.7811.4.2.1.1Point-to-pointconfiguration.7811.4.2.1.2Point-to-multipointconfiguration.7811.4.2.2Thesignallinglinkislost.7811.4.2.3AnU-plane-channelcannotbeestablished.7811.4.2.3.1Point-to-pointconfiguration.7811.4.2.3.2Point-to-multipointconfiguration.7811.4.2.4AnU-plane-channelislost.7811.4.2.4.1Point-to-pointconfigurationandoutgoingcallinapoint-to-multipointconfiguration.7811.4.2.4.2Point-to-multipointconfiguration,incomingcall.7911.4.3ActionsoftheDIPS.7911.4.3.1Thesignallinglinkcannotbeestablishedorislost.7911.4.3.2AnU-plane-channelcannotbeenestablished.7911.4.3.3AnU-plane-channelislost.7911.5Otherinterworkingfunctions.7911.5.1Callhold.7911.5.2Fallbackprocedure.7911.5.3Terminalportability.7912Dynamicswitchingprocedures.80SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)612.1DynamicswitchingproceduresbetweenDECTsignallingchannels.8012.1.1Firstestablishmentofsignallingbearer(CF).8112.1.2GeneraldescriptionoftheC-planeswitchingprocedure.8212.1.3SwitchingfromCFtoCSchannel,onlyDIFSinitiated.8212.1.4SwitchingbetweenCSandCSchannel,onlyDIFSinitiated.8312.1.5SwitchingfromCStoCF,DIFSinitiated.8412.1.6SwitchingfromCStoCF,DIPSinitiated.8512.1.7LCN-management.8612.1.8Conditionsfordynamicsignallingchannelswitching.8712.2DynamicswitchingproceduresbetweenDECTU-planes.8712.2.1DynamicswitchingproceduresfromLU1toLU7.8712.2.2DynamicswitchingproceduresfromLU7toLU1.9012.2.2.1Proceduredescription.9012.2.2.1.1Associatedprocedures.9312.2.3DynamicswitchingproceduresfromLU1toLU8.9312.2.4DynamicswitchingproceduresfromU-planeLU8toLU1.9412.2.5DynamicswitchingproceduresfromLU7toLU8.9512.2.5.1Proceduredescription.9512.2.6DynamicswitchingproceduresfromLU8toLU7.9712.2.6.1Proceduredescription.9713Maintenance.9813.1Exchangeofoperationandmaintenanceinformation.9814Coding.9814.1IWU-INFOrmationforDECT/ISDNintermediatesystem.9814.2IWUtoIWUforDECT/ISDNintermediatesystem.9914.2.1C-planespecific.9914.2.1.1Codingfor"releaserequired".10014.2.1.2Codingfor"other"L2commands.10014.2.2U-planespecific.10114.2.3Operationandmaintenancespecific.101AnnexA:Void.102AnnexB(informative):Handoverandcollisionscenarios.103B.1C-planeswitchingprocedures.103B.1.1C-planeswitching:handovercollisionscenarios.103B.1.1.1CFtoCSswitchingprocedure:concurrenthandoverscenario.103B.1.1.2CStoCFswitchingprocedure:concurrenthandoverscenario.104B.1.1.3DynamicswitchingCFtoCSbearerhandovercollision.106B.1.1.4Conclusions.106B.1.2C-planeswitching:cipheringprocedurecollisionscenarios.107B.1.2.1DynamicswitchingCFtoCScipheringprocedurecollision.107B.2LUserviceswitch.108B.2.1General.108B.2.2SwitchingfromLU1toLU7:bearerhandovercollision.108AnnexC(informative):ExamplesforsegmentationofISDNmessages.109AnnexD(Informative):LU7serviceestablishment.110AnnexE(informative):Bibliography.111History.112SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)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)hasbeenproducedbyETSIProjectDigitalEnhancedCordlessTelecommunications(DECT).NationaltranspositiondatesDateofadoptionofthisEN:10August2001DateoflatestannouncementofthisEN(doa):30November2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2002DateofwithdrawalofanyconflictingNationalStandard(dow):31May2002IntroductionForinterworkingbetweenanIntegratedServicesDigitalNetwork(ISDN)andaDECTsystem,twoprofileshavebeendefined.ThefirstprofileistheDECT/ISDNprofileforendsystemconfiguration.ThesecondprofileistheDECT/ISDNprofileforintermediatesystemconfiguration.Thefirstprofileisalsocalledthe"ISDNAccessProfile(IAP)".Thesecondprofileisalsocalledthe"IntermediateISDNaccessProfile(IIP)".TheIAPapplieswhenaFixedPart(FP)andaPortablePart(PP)togetherconstituteanISDNterminal.TheISDNapplicationsandanysupplementaryservicesarelocatedinthePP(noInterworkingUnit(IWU)inthePP).TheFPmapsthereceivedlayer3messagesattheISDNinterfacetotheDECTlayer3messagesandvice-versa.TheIIPapplieswhenaFPandaPPtogetherconstituteagatewaybetweenanISDNnetworkandanISDNterminal.TheFPandthePPhaveanIWU,whichmapsthemessagesbetweentheISDNinterfaceandtheDECTairinterface.ThepresentdocumentspecifiestheDECT/ISDNprofileforintermediatesystemconfigurationonly.FordetailsonDECT/ISDNprofileforendsystemconfiguration,seeEN300434-1[27].ThepresentdocumentspecifieshowISDNservicesareprovidedovertheDECTairinterface.OneofthemainobjectivesistodescribehowtheISDNservicesaremappedacrosstheDECTairinterfaceinaformalway,sothatequipmentinteroperabilityofdifferentmanufacturers'equipmentcanbeachieved.SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)81ScopeThepresentdocumentspecifieshowIntegratedServicesDigitalNetwork(ISDN)servicescanbeprovidedoverDigitalEnhancedCordlessTelecommunications(DECT).ItisbasedonDECTCommonInterface(CI)specificationEN300175,parts1[1]to8[8],toenableISDNterminalstohavecordlessaccesstoanISDNinfrastructure.BothpublicISDNandprivateISDNarewithinthescopeofthepresentdocument.TheuserhastransparentaccesstotheISDNservicesandfunctions.Inrespecttobearerservices,thefollowingaresupported:speech,3,1kHzaudio,unrestricted64kbit/sdata,packetdataandusersignallingbearerservice.TheDECTintermediatesystemconfigurationdiffersfromtheDECTendsystemconfigurationasfollows.TheintermediatesystemisusedtoenableISDNterminalstohavecordlessaccesstoanISDNinfrastructureviaaDECTairinterface.TheendsystemisusedwheretheDECTFixedPart(FP)andtheDECTPortablePart(PP)togetherformanendsystemwiththebehaviourofanISDNTerminalEquipment(TE).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN300175-1:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part1:Overview".[2]ETSIEN300175-2:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part2:PhysicalLayer(PHL)".[3]ETSIEN300175-3:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part3:MediumAccessControl(MAC)layer".[4]ETSIEN300175-4:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part4:DataLinkControl(DLC)layer".[5]ETSIEN300175-5:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part5:Network(NWK)layer".[6]ETSIEN300175-6:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part6:Identitiesandaddressing".[7]ETSIEN300175-7:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part7:Securityfeatures".[8]ETSIEN300175-8:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part8:Speechcodingandtransmission".[9]ETSIETS300108:"IntegratedServicesDigitalNetwork(ISDN);Circuit-mode64kbit/sunrestricted8kHzstructuredbearerservicecategory;Servicedescription".[10]ETSIETS300109:"IntegratedServicesDigitalNetwork(ISDN);Circuit-mode64kbit/s8kHzstructuredbearerservicecategoryusableforspeechinformationtransferServicedescription".[11]ETSIETS300110:"IntegratedServicesDigitalNetwork(ISDN);Circuit-mode64kbit/s8kHzstructuredbearerservicecategoryusablefor3,1kHzaudioinformationtransfer;Servicedescription".SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)9[12]ETSIETS300475-1:"PrivateTelecommunicationNetwork(PTN);Referenceconfiguration;Part1:ReferenceconfigurationforPTNeXchanges(PTNX)[ISO/IEC11579-1(1994),modified]".[13]ETSIETS300012:"IntegratedServicesDigitalNetwork(ISDN);Basicuser-networkinterface;Layer1specificationandtestprinciples".[14]ETSIEN300403-1:"IntegratedServicesDigitalNetwork(ISDN);DigitalSubscriberSignallingSystemNo.one(DSS1)protocol;Signallingnetworklayerforcircuit-modebasiccallcontrol;Part1:Protocolspecification[ITU-TRecommendationQ.931(1993),modified]".[15]ETSIEN300444:"DigitalEnhancedCordlessTelecommunications(DECT);GenericAccessProfile(GAP)".[16]ETSIETS300192:"PrivateTelecommunicationNetwork(PTN);SignallingprotocolattheS-referencepoint;Circuitmodebasicservices".[17]ETSIEN300171:"PrivateIntegratedServicesNetwork(PISN);Specification,functionalmodelsandinformationflows;Controlaspectsofcircuit-modebasicservices[ISO/IEC11574(1994)modified]".[18]ITU-TRecommendationI.232.1(1988):"Packet-modebearerservicecategories:Virtualcallandpermanentvirtualcircuitbearerservicecategory".[19]ETSIETS300049:"IntegratedServicesDigitalNetwork(ISDN);ISDNPacketModeBearerService(PMBS);ISDNVirtualCall(VC)andPermanentVirtualCircuit(PVC)bearerservicesprovidedbytheD-channeloftheuseraccess-basicandprimaryrate".[20]ETSIETS300048:"IntegratedServicesDigitalNetwork(ISDN);ISDNPacketModeBearerServices(PMBS);ISDNVirtualCall(VC)andPermanentVirtualCall(PVC)bearerservicesprovidedbytheB-channeloftheuseraccess-basicandprimaryrate".[21]ETSIEN300196-1:"IntegratedServicesDigitalNetwork(ISDN);Genericfunctionalprotocolforthesupportofsupplementaryservices;DigitalSubscriberSignallingSystemNo.one(DSS1)protocol;Part1:Protocolspecification".[22]ETSIETS300125:"IntegratedServicesDigitalNetwork(ISDN);User-networkinterfacedatalinklayerspecification;ApplicationofCCITTRecommendationsQ.920/I.440andQ.921/I.441".[23]ITU-TRecommendationG.711(1988):"Pulsecodemodulation(PCM)ofvoicefrequencies".[24]ITU-TRecommendationG.726(1990):"40,32,24,16kbit/sAdaptiveDifferentialPulseCodeModulation(ADPCM)".[25]ITU-TRecommendationG.821:"Errorperformanceofaninternationaldigitalconnectionoperatingatabitratebelowtheprimaryrateandformingpartofanintegratedservicesdigitalnetwork".[26]ITU-TRecommendationI.411(1993):"ISDNuser-networkinterfaces-Referenceconfigurations".[27]ETSIEN300434-1:"DigitalEnhancedCordlessTelecommunications(DECT);IntegratedServicesDigitalNetwork(ISDN);DECT/ISDNinterworkingforendsystemconfiguration;Part1:Interworkingspecification".SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)103Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:bearerservice:typeoftelecommunicationservicethatprovidesadefinedcapabilityforthetransmissionofsignalsbetweenuser-networkinterfacesNOTE1:TheDECTuser-networkinterfacecorrespondstothetopofthenetworklayer(layer3).broadcast:simplexpoint-to-multipointmodeoftransmissionC-plane:controlplaneoftheDECTprotocolstacks,whichcontainsalloftheinternalDECTprotocolcontrol,butmayalsoincludesomeexternaluserinformationNOTE2:TheC-planestackalwayscontainsprotocolentitiesuptoandincludingthenetworklayer.call:alloftheNetwork(NWK)layerprocessesinvolvedinonenetworklayerpeer-to-peerassociationNOTE3:Callmaysometimesbeusedtorefertoprocessesofalllayers,sincelowerlayerprocessesareimplicitlyrequired.DECTintermediatefixedsystem:logicalgroupingthatcontainsallthefunctionsbetweentheDECTDIreferencepointandthereferencepointonthefixedsideoftheDECTairinterfaceNOTE4:TheDECTIntermediateFixedSystem(DIFS)=FT+(localnetworkuptothefixedsideISDNreferencepoint(includingfixedsideIWU)).DECTintermediateportablesystem:logicalgroupingthatcontainsallthefunctionsbetweentheDECTDIreferencepointandtheISDNSreferencepointontheportablesideoftheDECTairinterfaceNOTE5:TheDECTIntermediatePortableSystem(DIPS)=PT+(PA(PortableApplication)uptotheportablesideISDNSreferencepoint(includingportablesideIWU)).DECTnetwork:networkthatusestheDECTairinterfacetointerconnectalocalnetworktooneormoreportableapplicationsThelogicalboundariesoftheDECTnetworkaredefinedtobeatthetopoftheDECTnetworklayer.NOTE6:ADECTNetwork(DNW)isalogicalgroupingthatcontainsoneormorefixedradioterminationsplustheirassociatedportableradiotermination.TheboundariesoftheDECTnetworkarenotphysicalboundaries.endsystem:logicalgroupingthatcontainsapplicationprocessesandsupportstelecommunicationservicesNOTE7:FromtheOpenSystemsInterconnection(OSI)pointofview,endsystemsareconsideredassourcesandsinksofinformation.equipmentinteroperability:capabilityoffixedandPPssuppliedbydifferentmanufacturerstointeroperateinamultivendorenvironmentFixedPart(DECTFixedPart)(FP):physicalgroupingthatcontainsalloftheelementsintheDECTnetworkbetweenthelocalnetworkandtheDECTairinterfaceNOTE8:ADECTFPcontainsthelogicalelementsofatleastonefixedradiotermination,plusadditionalimplementationspecificelements.FixedradioTermination(FT):logicalgroupoffunctionsthatcontainsalloftheDECTprocessesandproceduresonthefixedsideoftheDECTairinterfaceNOTE9:AfixedradioterminationonlyincludeselementsthataredefinedintheDECTCIstandard.Thisincludesradiotransmissionelementstogetherwithaselectionoflayer2andlayer3elements.SIST EN 300 822 V1.2.1:2003

ETSIETSIEN300822V1.2.1(2001-08)11GenericAccessProfile(GAP):profileapplicabletoallDECTPortableradioTerminations(PTs)andFixedradioTerminations(FTs)whicharesubjecttoCTR10(i.e.3,1kHztelephonyteleservice)TheGAPensuresairinterfaceinteroperabilityofDECTequipmentcapableof3,1kHztelephonyapplications,insuchawaythatanyDECTPortableradioTermination(PT)conformingtotheGAPisinteroperablewithanyDECTFTconformingtotheGAP.incomingcall:callreceivedataPPInterworkingUnit(IWU):unitthatisusedtointerconnectsubnetworksNOTE10:TheIWUwillcontaintheinterworkingfunctionsnecessarytosupporttherequiredsubnetworkinterworking.ISDNaccessprofile:definedpartoftheDECT/ISDNinterworkingstandardthatensuresinteroperabilitybetweenFPsandPPsfortheaccessofISDNserviceslocalnetwork:telecommunicationnetworkcapableofofferinglocaltelecommunicationservicesNOTE11:Thetermdoesnotincludelegalorregulatoryaspects,nordoesitindicateifthenetworkisapublicnetworkoraprivatenetwork.MACConnection(CONNECTION):associationbetweenonesourceMediumAccessControl(MAC)Multi-BearerControl(MBC)entityandonedestinationMACMBCentityThisprovidesasetofrelatedMACservices(asetoflogicalchannels),anditcaninvolveoneormoreunderlyingMACbearers.outgoingcall:calloriginatingfromaPPpaging:processofbroadcastingamessagefromaDECTFPtooneormoreDECTPPsNOTE12:Differenttypesofpagingmessagearepossible.Forexample,the{LCE_REQUEST-PAGE}messageorderstherecipienttorespondwithacallsetupattempt.portableapplication:logicalgroupingthatcontainsalltheelementsthatliebeyondtheDECTnetworkboundaryontheportablesideNOTE13:Thefunctionscontainedintheportableapplicationmaybephysicallydistributed,but
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