SIST EN 300 175-1 V1.5.1:2003

Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 1: Overview

Maintenance update

Digitalne izboljšane brezvrvične telekomunikacije (DECT) – Skupni vmesnik (CI) – 1. del: Pregled

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 175-1 V1.5.1 (2001-02) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 1: Overview

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 1: Overview33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 175-1 Version 1.5.1SIST EN 300 175-1 V1.5.1:2003en01-december-2003SIST EN 300 175-1 V1.5.1:2003SLOVENSKI
STANDARD



SIST EN 300 175-1 V1.5.1:2003



ETSIEN300175-1V1.5.1(2001-02)EuropeanStandard(Telecommunicationsseries)DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part1:OverviewSIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)2ReferenceREN/DECT-000157-1KeywordsDECT,radioETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.164Structure.204.1Part1:Overview.204.2Part2:PhysicalLayer(PHL).204.3Part3:MediumAccessControl(MAC)layer.204.4Part4:DataLinkControl(DLC)layer.214.5Part5:Network(NWK)layer.214.6Part6:Identitiesandaddressing.214.7Part7:Securityfeatures.214.8Part8:Speechcodingandtransmission.215TheobjectivesoftheCIstandard.226Generaldescriptionofthesystem.237Descriptionoftheprotocolarchitecture.247.1General.247.2TheDECTlayeredstructure.247.3PhysicalLayer(PHL).247.4MAClayer.257.5DLClayer.257.6Network(NWK)layer.257.7LowerLayerManagementEntity(LLME).257.8InterworkingUnits(IWU).268ProprietaryescapeswithintheCI.268.1Primaryescaperoutes.268.2Secondaryescaperoutes.279Levelsofconformance.27AnnexA(informative):Bibliography.28History.29SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).Thepresentdocumentispart1ofamulti-partENcoveringtheCommonInterface(CI)fortheDigitalEnhancedCordlessTelecommunications(DECT),asidentifiedbelow:Part1:"Overview";Part2:"PhysicalLayer(PHL)";Part3:"MediumAccessControl(MAC)layer";Part4:"DataLinkControl(DLC)layer";Part5:"Network(NWK)layer";Part6:"Identitiesandaddressing";Part7:"Securityfeatures";Part8:"Speechcodingandtransmission".Thefollowingaspectsofthepresentdocumentaresubjecttocontrolleddistribution:a)DECTidentities,asdefinedinEN300175-6[4];b)DECTcryptographicalgorithms.ThecryptographicalgorithmsspecifythedetailsoftheDECTstandardauthenticationalgorithmandtheDECTstandardcipher.Theseaspectsaredistributedonanindividualbasis.FurtherinformationanddetailsofthecurrentdistributionprocedurescanbeobtainedfromtheETSISecretariatattheaddressonthesecondpageofthepresentdocument.FurtherdetailsoftheDECTsystemmaybefoundinTR101178[7],ETR043[9]andETR185[10].NationaltranspositiondatesDateofadoptionofthisEN:16February2001DateoflatestannouncementofthisEN(doa):31May2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30November2001DateofwithdrawalofanyconflictingNationalStandard(dow):30November2001SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)51ScopeThepresentdocumentgivesanintroductionandoverviewofthecompleteDigitalEnhancedCordlessTelecommunications(DECT)CommonInterface(CI).ThispartoftheDECTCIcontainsanabstractoftheotherpartsoftheDECTstandardtogetherwithageneraldescriptionof:-theobjectivesofthepresentdocument;-theDECTCommonInterface;-theprotocolarchitectureofDECT.Thepresentdocumentalsoprovidesanextensivevocabulary,inparticularitcontainsthecommondefinitionsofallthetechnicaltermsusedindifferentpartsofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN300175-3:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part3:MediumAccessControl(MAC)layer".[2]ETSIEN300175-4:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part4:DataLinkControl(DLC)layer".[3]ETSIEN300175-5:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part5:Network(NWK)layer".[4]ETSIEN300175-6:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part6:Identitiesandaddressing".[5]ETSIEN300175-8:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part8:Speechcodingandtransmission".[6]ETSIEN300176:"DigitalEnhancedCordlessTelecommunications(DECT);Approvaltestspecification".[7]ETSITR101178:"DigitalEnhancedCordlessTelecommunications(DECT);AHighLevelGuidetotheDECTStandardization".[8]ETSITR101310:"DigitalEnhancedCordlessTelecommunications(DECT);TrafficCapacityandSpectrumRequirementsforMulti-SystemandMulti-ServiceDECTApplicationsCo-existinginaCommonFrequencyBand".".[9]ETSIETR043:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Servicesandfacilitiesrequirementsspecification".[10]ETSIETR185:"DigitalEnhancedCordlessTelecommunications(DECT);DataServicesProfile(DSP);Profileoverview".[11]ETSIEN300403-1:"IntegratedServicesDigitalNetwork(ISDN);DigitalSubscriberSignallingSystemNo.one(DSS1)protocol;Signallingnetworklayerforcircuit-modebasiccallcontrol;Part1:Protocolspecification[ITU-TRecommendationQ.931(1993),modified]".SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)6[12]ITU-RRecommendationM.816-1:"FrameworkforservicessupportedonInternationalMobileTelecommunications-2000(IMT-2000)".[13] ITU-R Recommendation M.1457: "Detailed specifications of International Mobile Telecommunications-2000(IMT-2000)".[14]ITU-TRecommendationX.25:"InterfacebetweenDataTerminalEquipment(DTE)andDataCircuit-terminatingEquipment(DCE)forterminalsoperatinginthepacketmodeandconnectedtopublicdatanetworksbydedicatedcircuit".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:AccessRightsClass(ARC):thisshowsthetypeofaccesstoaDECTnetwork,suchaspublic,residentialorprivate.AccessRightsDetails(ARD):thisisauniquenumberwithinoneARC.AccessRightsIdentity(ARI):thisis,toaserviceprovider,agloballyuniqueidentitythatshowstheaccessrightsrelatedtothatserviceprovider.TheARIconsistsofanARCandanARD.TherearethreecategoriesofARIs:PARI=PrimaryARI;SARI=SecondaryARI;TARI=TertiaryARI.algorithm:mathematicalprocessorfunctionthattransformsaninputintoanoutput.Incryptographicapplicationsanalgorithmisaprocessusedforencipherment,deciphermentornon-reversibleenciphermentundercontrolofakey.algorithmidentifier:designatortoshowwhichalgorithmisinuse,sothatthecorrectonemaybechosen.asymmetricalgorithm:seepublickeyalgorithm.antennadiversity:diversityimpliesthattheRadioFixedPart(RFP)foreachbearerindependentlycanselectdifferentantennapropertiessuchasgain,polarization,coveragepatterns,andotherfeaturesthatmayeffectthepracticalcoverage.Atypicalexampleisspacediversity,providedbytwoverticallypolarizedantennasseparatedby10-20cm.attach:processwherebyaPortablePart(PP)withinthecoverageareaofaFixedPart(FP)towhichithasaccessrights,notifiestheFPthatitisoperative.Thereverseprocessisdetached,whichreportsthePPasinoperative.NOTE1:AnoperativePPisassumedtobereadytoreceivecalls.authentication(ofasubscriber):processwherebyaDECTsubscriberispositivelyverifiedtobealegitimateuserofaparticularFP.NOTE2:Authenticationisgenerallyperformedatcallset-up,butmayalsobedoneatanyothertime(e.g.duringacall).authentication:corroborationthatanentityistheonethatisclaimed.authenticationofPT:processwherebyaDECTPTispositivelyverifiedtobealegitimateuserofaparticularFP.authenticationofFT:processwherebytheidentityofanFTisverifiedtoaDECTPT.authenticationofuser:processwherebyaDECTuserispositivelyverifiedtobealegitimateuserofaparticularFP.NOTE3:Authenticationisgenerallyperformedatcallsetup,butmayalsobedoneatanyothertime(e.g.duringacall).bearer:seeMediumAccessControl(MAC)bearerorbearerservice.SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)7bearerhandover:internalhandoverprocessprovidedbytheMAClayer,wherebyoneMACconnectioncanmodifyitsunderlyingbearerswhilemaintainingtheserviceprovidedtotheDataLinkControl(DLC)layer.NOTE4:Bearerhandoverisslotbased.bearerservice:typeoftelecommunicationservicethatprovidesadefinedcapabilityforthetransmissionofsignalsbetweenuser-networkinterfaces.NOTE5:TheDECTuser-networkinterfacecorrespondstothetopoftheDECTnetworklayer(layer3).broadcast:simplexpoint-to-multipointmodeoftransmission.NOTE6:Thetransmittermaydisregardthepresenceorabsenceofreceivers.C-plane:controlplaneoftheDECTprotocolstacks,whichcontainsalloftheinternalDECTprotocolcontrol,butmayalsoincludesomeexternaluserinformation.NOTE7:TheC-planestackalwayscontainsprotocolentitiesuptoandincludingthenetworklayer.call:alloftheNetwork(NWK)layerprocessesinvolvedinoneNWKlayerpeer-to-peerassociation.NOTE8:Callmaysometimesbeusedtorefertoprocessesofalllayers,sincelowerlayerprocessesareimplicitlyrequired.cell:domainservedbyasingleantenna(e)system(includingaleakyfeeder)ofoneFP.NOTE9:AcellmayincludemorethanonesourceofradiatedRadioFrequency(RF)energy(i.e.morethanoneradioendpoint).CentralControlFixedPart(CCFP):physicalgroupingthatcontainsthecentralelementsofaFP.AFPcontainsamaximumofoneCCFP.NOTE10:ACCFPcontrolsoneormoreRFPs.centrex:implementationofaprivatetelecommunicationnetworkexchangethatisnotlocatedonthepremisesoftheprivatenetworkoperator.Itmaybeco-locatedwith,orphysicallyapartofapublicexchange.CipherKey(CK):valuethatisusedtodeterminethetransformationofplaintexttociphertextinacryptographicalgorithm.CipherKey(CK)generation:processforgeneratingcryptographickeys.ciphertext:outputofacryptographicalgorithm.Ciphertextisnotintelligibleunless(inareversiblealgorithm)thereversetransformationisperformed.confidentiality:renderinginformationsecretasciphertextunlessthecapabilityispossessedtorecovertheplaintextfromciphertext.channel:seephysicalchannel.cluster:logicalgroupingofoneormorecellsbetweenwhichbearerhandoverispossible.AClusterControlFunction(CCF)controlsonecluster.NOTE11:Internalhandovertoacellwhichisnotpartofthesameclustercanonlybedonebyconnectionhandover.connection:see"MACconnection".connectionhandover:internalhandoverprocessprovidedbytheDLClayer,wherebyonesetofDLCentities(C-planeandU-plane)canre-routedatafromoneMACconnectiontoasecondnewMACconnection,whilemaintainingtheserviceprovidedtotheNWKlayer.NOTE12:ConnectionhandoverisDLCframebased.SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)8Connectionlessmode(C/L):transmissionmodethattransfersonepacket(oneselfcontainedunit)ofdatafromonesourcepointtoone(ormore)destinationpointsinasinglephase.NOTE13:Connectionlesstransmissionsrequirethepeer-to-peerassociationstobeprearranged,andthetransmissionisunacknowledgedatthatlayer.ConnectionOrientedmode(C/O):transmissionmodethattransfersdatafromonesourcepointtooneormoredestinationpointsusingaprotocolbasedonthreephases:"Set-up","Datatransfer"and"Release".NOTE14:C/Omoderequiresnoprearrangedassociationsbetweenpeerentities(unlikeC/Lmode).CordlessRadioFixedPart(CRFP):WirelessRelayStation(WRS)thatprovidesindependentbearercontroltoaPTandFTforrelayedconnections.countermeasure:device,instrumentorprocedureusedtocounteractordefendagainstathreat.cryptography:literallysecretwriting.Usedtodescribethehidingofinformation.coveragearea:areaoverwhichreliablecommunicationcanbeestablishedandmaintained.DataLinkControl(DLC):layer2boftheDECTprotocolstack.DECTNetwork(DNW):networkthatusestheDECTairinterfacetointerconnectalocalnetworktooneormoreportableapplications.ThelogicalboundariesoftheDECTnetworkaredefinedtobeatthetopoftheDECTNWKlayer.NOTE15:ADNWisalogicalgroupingthatcontainsoneormoreFixedradioTerminations(FTs)plustheirassociatedPortableradioTermination(PT).TheboundariesoftheDECTnetworkarenotphysicalboundaries.DataEncryptionStandard(DES):UnitedStatesFederaldataencryptionstandard.decipherment:renderingofciphertextintoplaintext.DECTStandardAuthenticationAlgorithm(DSAA):algorithmusedforauthenticationinDECT.DECTStandardCipher(DSC):algorithmusedfordataencryptioninDECT.DLCbroadcast:simplex"connectionless"modeoftransmissionfromtheDLCbroadcastentityofoneFTtotheDLCbroadcastentitiesinoneormorePT.NOTE16:Thetransmittermaydisregardthepresenceorabsenceofreceivers.DLCdatalink(DLClink):associationbetweentwoDLClayerentities.ThiscaneitherbeoneC-planeassociationoroneU-planeassociation.NOTE17:ThisisnotthesameasaMACconnection.DLCframe:formatusedtostructureallmessagesthatareexchangedbetweenDLClayerpeerentities.NOTE18:DifferentDLCframesareusedintheC-planeandtheU-plane,andthereismorethanoneformatofDLCframeineachplane.doubleduplexbearer:useoftwoduplexbearers(seeduplexbearer)whichrefertothesameMACconnection,sharingtheirsimplexbearers(seesimplexbearer)fortheinformationflow.double-simplexbearer:useoftwosimplexbearersoperatinginthesamedirectionontwophysicalchannels.ThesepairsofchannelsalwaysusethesameRFcarrierandalwaysuseevenlyspacedslots(i.e.separatedby0,5TimeDivisionMultipleAccess(TDMA)frame).Adouble-simplexbeareronlyexistsaspartofamultibearerMACconnection.down-link:transmissioninthedirectionFTtoPT.duplexbearer:useoftwosimplexbearersoperatinginoppositedirectionsontwophysicalchannels.ThesepairsofchannelsalwaysusethesameRFcarrierandalwaysuseevenlyspacedslots(i.e.separatedby0,5TDMAframe).SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)9doubleslot:one12thofaTDMAframewhichisusedtosupportonehighcapacityphysicalchannel.EndSystem(ES):logicalgroupingthatcontainsapplicationprocessesandsupportstelecommunicationservices.NOTE19:FromtheOSIpointofview,endsystemsareconsideredassourcesandsinksofinformation.encipherment:renderingofplaintextintociphertext.externalhandover:processofswitchingacallinprogressfromoneFPtoanotherFP.ExtendedMACcontrolmessages:MACmessagesoftheB-fieldconnectioncontrolset.FEALalgorithm:FastEncryptionAlgorithm;aparticularencryptionalgorithminthepublicdomain.field:continuousregionofdata(i.e.adjacentbits)thatjointlyconveyinformation.Typically,amessagewillcontainseveralfields.Ifdataisnotcontinuousthenitisdefinedastwo(ormore)fields.fixedgeometryPortablePart(PP):PPinwhichtheelectro-acoustictransducersandtheirassociatedacousticcomponentsareheldinfixedrelativepositionsand/ororientationsduringallon-lineconditionsandtestconditionsofthePP.FixedPart(DECTFixedPart)(FP):physicalgroupingthatcontainsalloftheelementsintheDECTnetworkbetweenthelocalnetworkandtheDECTairinterface.NOTE20:ADECTFPcontainsthelogicalelementsofatleastoneFT,plusadditionalimplementationspecificelements.FixedradioTermination(FT):logicalgroupoffunctionsthatcontainsalloftheDECTprocessesandproceduresonthefixedsideoftheDECTairinterface.NOTE21:AFTonlyincludeselementsthataredefinedinEN300175parts1to8.Thisincludesradiotransmissionelements(layer1)togetherwithaselectionoflayer2andlayer3elements.flowcontrol:mechanismthatisusedtoregulatetheflowofdatabetweentwopeerentities.fragment:oneoftheServiceDataUnits(SDUs)thatisproducedbytheprocessoffragmentation.NOTE22:Thisisnotthesameasasegment.fragmentation:processofdividingaProtocolDataUnit(PDU)intomorethanoneSDUfordeliverytoalowerlayer.Thereverseprocessisrecombination.NOTE23:Thisisnotthesameassegmentation.frame:seeTDMAframeorDLCframe.fullslot(slot):one24thofaTDMAframewhichisusedtosupportonephysicalchannel.GenericAccessProfile(GAP):standardinadditiontotheDECTCIthatensuresinteroperabilitybetweenFPsandPPsfromdifferentmanufacturers.generic:generalizedsetorgeneralpurposeset,ofteninthesenseofbasicorordinary.geographicallyunique:thistermrelatestoFPidentities,PrimaryAccessRightsIdentifiers(PARIs)andRadioFixedPartIdentifiers(RFPIs).ItindicatesthattwoFPswiththesamePARI,orrespectivelytwoRFPswiththesameRFPI,cannotbereachedorlistenedtoatthesamegeographicalposition.GlobalNetWork(GNW):telecommunicationnetworkcapableofofferingalongdistancetelecommunicationservice.NOTE24:Thetermdoesnotincludelegalorregulatoryaspects,nordoesitindicateifthenetworkisapublicoraprivatenetwork.globallyuniqueidentity:identityisuniquewithinDECT(withoutgeographicalorotherrestrictions).SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)10guardspace:nominalintervalbetweentheendofaradiotransmissioninagivenslot,andthestartofaradiotransmissioninthenextsuccessiveslot.NOTE25:Thisintervalisincludedattheendofeveryslot,inordertopreventadjacenttransmissionsfromoverlappingevenwhentheyoriginatewithslightlydifferenttimingreferences(e.g.fromdifferentradioendpoints).halfslot:one48thofaTDMAframewhichisusedtosupportonephysicalchannel.handover:processofswitchingacallinprogressfromonephysicalchanneltoanotherphysicalchannel.Theseprocessescanbeinternal(seeinternalhandover)orexternal(seeexternalhandover).NOTE26:Therearetwophysicalformsofhandover,intracellhandoverandintercellhandover.Intracellhandoverisalwaysinternal,intercellhandovercanbeinternalorexternal.handsetecho:echo,perceptiblebythefar-enduser,resultingfromthecouplingbetweenthereceivingandsendingdirectionsofthehandset,mostlyduetoacousticcouplingbetweentransducers.Itisparticularlyobjectionableincommunicationsincludingasatelliteandanechocanceller,astheDECThandsetechomaybeoutofrangeoftheechocanceller.impersonation:whereoneidentityclaimsthepartofanotheridentity.IntegratedServicesDigitalNetwork(ISDN):digitaltelecommunicationsinfrastructuretotheConsultativeCommitteeonInternationalTelegraphyandTelephony(CCITT)standards.incomingcall:callreceivedataPP.intercellhandover:switchingofacallinprogressfromonecelltoanothercell.internalcall:callbetween2usersthatdoesnotmakeuseofthelocalnetworkresources.internalhandover:handoverprocessesthatarecompletelyinternaltooneFT.Internalhandoverreconnectsthecallatthelowerlayers,whilemaintainingthecallattheNWKlayer.NOTE27:ThelowerlayerreconnectioncaneitherbeattheDLClayer(seeconnectionhandover)orattheMAClayer(seebearerhandover).InternationalPortableUserIdentity(IPUI):thisisanidentitythatuniquelydefinesoneuserwithinthedomaindefinedbyhisaccessrightsrelatedtothisIPUI.TheIPUIconsistsofaPortableUserType(PUT)andaPortableUserNumber(PUN).NOTE28:TheIPUImaybelocallyuniqueorgloballyuniquedependingontypeofPUT.interoperability:capabilityofFPsandPPs,thatenableaPPtoobtainaccesstoteleservicesinmorethanonelocationareaand/orfrommorethanoneoperator(morethanoneserviceprovider).interoperatorroaming:roamingbetweenFPcoverageareasofdifferentoperators(differentserviceproviders).InterworkingUnit(IWU):unitthatisusedtointerconnectsubnetworks.NOTE29:TheIWUwillcontaintheInterWorkingFunctions(IWF)necessarytosupporttherequiredsubnetworkinterworking.intracellhandover:switchingofacallinprogressfromonephysicalchannelofonecelltoanotherphysicalchannelofthesamecell.intraoperatorroaming:roamingbetweendifferentFPcoverageareasofthesameoperator(sameserviceprovider).Isochronous:essentialcharacteristicofatime-scaleorasignalsuchthatthetimeintervalsbetweenconsecutivesignificantinstantseitherhavethesamedurationordurationsthatareintegralmultiplesoftheshortestduration(ITU-TRecommendationR.140:"DefinitionofessentialtermsinthefieldofTelegraphtransmission",definition6014).keymanagement:wayinwhichcryptographickeysaregenerated,distributedandused.KeyStreamGenerator(KSG):cryptographicalgorithmwhichproducesastreamofbinarydigitswhichcanbeusedforenciphermentanddecipherment.SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)11LocalAreaNetwork(LAN):electronicsystemswhichareinterconnectedandinphysicalproximitytoeachother.link:seeDLCdatalink.logicalconnection:anassociationbetweentwoinstancesoftheMACMBCthatcanbeusedbyhigherlayerstoexchangeU-planeorC-planedata.LocalNetwork(LNW):telecommunicationnetworkcapableofofferinglocaltelecommunicationservices.NOTE30:Thetermdoesnotincludelegalorregulatoryaspects,nordoesitindicateifthenetworkisapublicnetworkoraprivatenetwork.locallyuniqueidentity:identityisuniquewithinoneFPorlocationarea,dependingonapplication.locationarea:domaininwhichaPPmayreceive(and/ormake)callsasaresultofasinglelocationregistration.locationregistration:processwherebythepositionofaDECTportableterminationisdeterminedtothelevelofonelocationarea,andthispositionisupdatedinoneormoredatabases.NOTE31:ThesedatabasesarenotincludedwithintheDECTFT.logicalchannel:generictermforanydistinctdatapath.Logicalchannelscanbeconsideredtooperatebetweenlogicalendpoints.LowerLayerManagementEntity(LLME):managemententitythatspansanumberoflowerlayers,andisusedtodescribeallcontrolactivitieswhichdonotfollowtherulesoflayering.NOTE32:TheDECTLLMEspanstheNWKlayer,theDLClayer,theMAClayerandthePHL.LowerTester(LT):logicalgroupingthatcontainsthetestequipment,afunctionallyequivalentDECTPT,afunctionallyequivalentDECTFTandatestcontroller.MACbearer(bearer):MACbearersaretheserviceelementsthatareprovidedbyeachCellSiteFunction(CSF).EachMACbearercorrespondstoasingleserviceinstancetothephysicallayer.Seealsosimplexbearer,duplexbeareranddoublesimplexbearer.MACconnection(connection):associationbetweenonesourceMACMulti-BearerControl(MBC)entityandonedestinationMACMBCentity.ThisprovidesasetofrelatedMACservices(asetoflogicalchannels),anditcaninvolveoneormoreunderlyingMACbearers.MediumAccessControl(MAC):layer2aoftheDECTprotocolstack.Mobilityclass1:localareaapplications,forwhichterminalsarepre-registeredoff-airwithoneormorespecificfixedparts,andestablishmentofserviceanduserparametersisthereforeimplicit,accordingtoaprofile-definedlist.Mobilityclass2:privateandpublicroamingapplicationsforwhichterminalsmaymovebetweenFPswithinagivendomainandforwhichassociationofserviceparametersisexplicitatthetimeofservicerequest.minimalMMS-messageattributes:messagemeta-informationusedintherequest-to-send,etc.MMS-messageattributes:messagemeta-information.multiframe:repeatingsequenceof16successiveTDMAframes,thatallowslowrateorsporadicinformationtobemultiplexed(e.g.basicsysteminformationorpaging).MultimediaMessagingService:isagenericsetofcommands,informationelementsandfunctionalityforfile/messagingservice.masquerading:whereoneidentityplaysthepartof,oractsas,anotheridentity.mutualauthentication:wheretwoentitiescorroboratetheidentityofeachother.network(telecommunicationnetwork):allthemeansofprovidingtelecommunicationservicesbetweenanumberoflocationswheretheservicesareaccessedviaequipmentattachedtothenetwork.networkecho:echo,perceptiblebytheDECTuser,resultingfromreflectionsinthenetwork.Itismostlyduetohybridimpairmentsatbothendsofthecommunication.SIST EN 300 175-1 V1.5.1:2003



ETSIETSIEN300175-1V1.5.1(2001-02)12node:pointatwhichswitchingoccurs.operator(DECToperator):individualorentitywhoorwhichisresponsibleforoperationofoneormoreDECTFPs.NOTE33:Thetermdoesnotimplyanylegalorregulatoryconditions,nordoesitimplyanyaspectsofownership.outgoingcall:calloriginatingfromaPP.paging:processofbroadcastingamessagefromaDECTFPtooneormoreDECTPPs.NOTE34:Differenttypesofpagingmessagearepossible.Forexample,the{Requestpaging}messageorderstherecipienttorespondwithacallset-upattempt.pagingarea:domaininwhichthePPwillbepagedasapartofincomingcallestablishment.NOTE35:Ingeneral,thepagingareawillbeequaltotheTemporaryPortableUserIdentity(TPUI)domain,sincetheTPUIisusedforpaging.PARKLengthIndicator(PLI):associatesagroupofFPARIstothePARK,byindicatinghowmanyofthefirstARC+ARDbitsarerelevant.Theresthave"don'tcare"status.NOTE36:ThePLIisprogrammedintoaPPaspartofthesubscriptionprocess.Physical(PHL):layer1oftheDECTprotocolstack.PrimaryAccessRightsIdentity(PARI):thisisthemostfrequentlytransmittedARI.EveryDECTRFPtransmitsaPARI.PortableAccessRightsKey(PARK):thisstatestheaccessrightsforaPP.phase:onediscretepartofaprocedure,wherethestartandendofthepartcanbeclearlyidentified(e.g.bythearrivalordispatchofaprimitive).physicalchannel(channel):simplexchannelthatiscreatedbytransmittinginoneparticularslotononeparticularRFchannelinsuccessiveTDMAframes.Seealsosimplexbearer.NOTE37:Onephysicalchannelprovidesasimplexservice.Twophysicalchannelsarerequiredtoprovideaduplexservice.PortableApplication(PA):logicalgroupingthatcontainsalltheelementsthatliebeyondtheDECTnetworkboundaryontheportableside.NOTE38:Thefunctionscontainedintheportableapplicationmaybephysicallydistributed,butanysuchdistributionisinvisibletotheDECTnetwork.PortableHandset(PHS):singlephysicalgroupingthatcontainsalloftheportableelementsthatareneededtoprovideateleservicetotheuser.NOTE39:PHSisasubsetofallpossibleportableparts.ThissubsetincludesallphysicalgroupingsthatcombineonePTplusatleastoneportableapplication
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