ETSI EN 300 700 V1.2.1 (2000-09)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT); Wireless Relay Station (WRS)33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 700 Version 1.2.1SIST EN 300 700:2001en01-september-2001SIST EN 300 700:2001SLOVENSKI
STANDARD
ETSIEN300700V1.2.1(2000-09)EuropeanStandard(Telecommunicationsseries)DigitalEnhancedCordlessTelecommunications(DECT);WirelessRelayStation(WRS)SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)2ReferenceREN/DECT-050145KeywordsDECT,repeaterETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)3ContentsIntellectualPropertyRights.6Foreword.61Scope.72References.73Definitionsandabbreviations.83.1Definitions.83.2Abbreviations.94WirelessRelayStation(WRS).104.1Introduction.104.2Description.104.2.1PHYlayerfunctions.114.2.2MAClayerfunctions.114.2.3DLClayerfunctions.114.2.4NWKlayerfunctions.114.2.4.1Over-the-airmaintenance.114.2.5Identities.124.3Services.124.4Procedures.124.4.1PHYlayer.124.4.2MAClayer.124.4.2.1Extendedfixedpartcapabilities.124.4.2.2Hopcontrol.125CordlessRadioFixedPart(CRFP).135.1Description.135.1.1General.135.1.2Referencemodel.135.1.3MAClayerfunctions.135.1.3.1General.135.1.3.2Framemultiplexingstructure.145.1.3.3Logicalchannelmapping.155.1.3.4QualityControlandFlowControl.155.1.4NWKlayerfunctions.155.1.5Identities.165.1.5.1Identitiesandaddressing.165.1.5.2Subscriptiondata.165.2Messages.165.2.1MAClayercontrol.165.3Procedures.175.3.1MAClayer.175.3.1.1ConnectionOrientedmode(C/O)proceduresatCRFP.175.3.1.1.1CreationofaRelayMultiBearerControl(RMBC).175.3.1.1.2NormalC/Obearersetup.175.3.1.1.3DualC/Obearersetup.185.3.1.1.4C/Oconnectionrelease.195.3.1.1.5C/Oabnormalconnectionrelease.205.3.1.2CRFPconnectionsuspendandresume.215.3.1.3C/Obearerhandover.225.3.2DLClayer.245.3.2.1Connectionhandover.245.3.2.2DLCvariables.255.3.3NWKlayer.255.3.4Security.275.3.4.1General.27SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)45.3.4.2CRFPinitializationofPTcipherkey.305.3.5Management.305.3.5.1CRFPMACmodes.305.3.5.2CRFPstatesandstatetransitions.305.4ExampleoperationofCRFP.315.4.1Introduction.315.4.2ExampleGAPprocedures.316RepeaterPart(REP).316.1Description.316.1.1General.316.1.2Referencemodel.316.1.3MAClayerfunctions.326.1.3.1General.326.1.3.2Framemultiplexing.326.1.3.2.1Qualitycontrol.346.1.3.2.2Bearersselection.356.1.3.2.3Relayofaduplexbearer.356.1.3.2.4Relayofadoublesimplexbearer.356.1.3.3Logicalchannelmapping.356.1.4DLCfunctions.366.1.5NWKlayerfunctions.366.1.6Managementfunctions.366.1.6.1Identitiesandaddressing.366.2Definitions.376.3Messages.376.3.1MACcontrol(MT).376.4Procedures.376.4.1MAClayer.376.4.1.1C/Oconnection.376.4.1.1.1Complementaryconnectionsetupprocedure.376.4.1.1.2Creationofadoubleduplexbearer.386.4.1.1.3Mappingprocedure.396.4.1.2REPrelayedC/Oconnection.406.4.1.2.1IWU.406.4.1.2.2REPrelayedC/Osingleduplexbearersetup.416.4.1.2.3REPrelayedC/Obearerrelease.416.4.1.2.4REPrelayedC/Obearerhandover.426.4.2DLClayer.426.4.2.1REPrelayedC/Oconnectionhandover.426.4.3Management.436.4.3.1REPstates.436.4.3.2REPactionsandstatestransitions.446.4.3.2.1ActionsintheIdle_UnlockedandActive_Unlockedstates.446.4.3.2.2ActionsintheLockedstate.446.4.3.2.3EntryintotheActive_Idlestate.446.4.3.2.4ActionsintheActive_Idlestate.446.4.3.2.5EntryintotheActive_Trafficstate.456.4.3.2.6ActionsintheActive_Trafficstate.456.4.3.3Channelselection.456.5ExampleoperationofREP.45AnnexA(normative):TheoptionalCRFPinterfacetoREP.54A.1Description.54A.1.1General.54A.1.2Framemultiplexingstructure.54A.2Messages.55A.2.1MAClayer.55A.2.2Hopcontrol.55SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)5A.3Procedures.55A.3.1MAClayer.55A.3.2Channelselection.58AnnexB(normative):CRFPInterworkingwithGAP-basedFixedParts.59B.1AdditionsandmodificationstoGAPFixedParts.59B.1.1Downlinkbroadcastfor"CRFPInterworkingwithGAP-basedFixedParts".59B.1.1.1QT-Extendedfixedpartcapabilities.59B.1.2Intra-cellBearerHandover.59B.1.3NWKlayerfeatures/proceduressupport.60B.1.4Bearerhandoverbitmaskmanagement.60B.2RequirementsontheCRFP.60B.2.1General.60B.2.2Downlinkbroadcast.61B.2.2.1NTmessage.61B.2.2.2QT-staticinformation(QH=0).61B.2.2.3QT-ExtendedRFcarrierinformation(QH=2).62B.2.2.4QT-FPcapabilities(QH=3).62B.2.2.5QT-ExtendedFPcapabilities(QH=4).63B.2.2.6QT-SARIsupport(QH=5).63B.2.2.7QT-Multiframenumber(QH=6).63B.2.3Pagingbroadcast.64B.2.3.1Shortpage,normal/extendedpaging.64B.2.3.2Zerolengthpage,normal/extendedpaging.64B.2.4Qualitycontrolofrelayedconnections.64B.2.5NWKlayerfeatures/proceduressupport.65B.3NWKlayerprocedures.65B.3.1ObtainingaccessrightsforWRS.65B.3.2RetrievalofWRS-RPN.66B.3.3Indication/modificationofWRS-RPN.67B.3.4ObtainingaccessrightsforencryptionofconnectionsrelayedbyWRS.68B.3.5IndicationofWRS-cipherkey.69B.3.6Dualcipherswitching.69B.3.7LocationregistrationwithTPUIassignmentforWRS.71B.4Managementprocedures.71B.4.1InitializationofCRFP.71B.4.1.1Indication/ModificationofWRS/RPN.71B.4.2ManagementforEncryptionofrelayedconnections.71History.72SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)6IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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:1September2000DateoflatestannouncementofthisEN(doa):31December2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30June2001DateofwithdrawalofanyconflictingNationalStandard(dow):30June2001SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)71ScopeThepresentdocumentdefinestheDigitalEnhancedCordlessTelecommunications(DECT)WirelessRelayStation(WRS).AWRSisanadditionalbuildingblockfortheDECTfixednetwork.ThepresentdocumentdefinesprovisionsneededforacontrolledandreliableapplicationoftheDECTWRSinfrastructurebuildingblock.Theseprovisionsarenotrelatedtoanyspecificprofile.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN300175-1(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part1:Overview".[2]ETSIEN300175-2(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part2:PhysicalLayer(PHY)".[3]ETSIEN300175-3(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part3:MediumAccessControl(MAC)Layer".[4]ETSIEN300175-4(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part4:DataLinkControl(DLC)Layer".[5]ETSIEN300175-5(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part5:Network(NWK)Layer".[6]ETSIEN300175-6(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part6:IdentitiesandAddressing".[7]ETSIEN300175-7(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part7:SecurityFeatures".[8]ETSIEN300175-8(V1.4):"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Part8:SpeechCodingandTransmission".[9]ETSIETR043:"DigitalEnhancedCordlessTelecommunications(DECT);CommonInterface(CI);Servicesandfacilitiesrequirementsspecification".[10]ETSIETR246:"DigitalEnhancedCordlessTelecommunications(DECT);ApplicationofDECTWirelessRelayStations(WRS)".[11]ETSIEN300444(V1.3):"DigitalEnhancedCordlessTelecommunications(DECT);GenericAccessProfile(GAP)".SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)83Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:CordlessRadioFixedPart(CRFP):WRSthatprovidesindependentbearercontroltoaPortableradioTermination(PT)andFixedradioTermination(FT)forrelayedconnectionsFixedPart(DECTFixedPart)(FP):physicalgroupingthatcontainsalloftheelementsintheDECTnetworkbetweenthelocalnetworkandtheDECTairinterfaceNOTE1:ADECTFPcontainsthelogicalelementsofatleastoneFT,plusadditionalimplementationspecificelements.FixedradioTermination(FT):logicalgroupoffunctionsthatcontainsalloftheDECTprocessesandproceduresonthefixedsideoftheDECTairinterfaceNOTE2:AFTonlyincludeselementsthataredefinedintheDECTCIstandard.Thisincludesradiotransmissionelementstogetherwithaselectionoflayer2andlayer3elements.Handover:processofswitchingacallinprogressfromonephysicalchanneltoanotherphysicalchannel.Theseprocessescanbeinternal(seeinternalhandover)orexternal(seeexternalhandover)NOTE3:Therearetwophysicalformsofhandover,intra-cellhandoverandinter-cellhandover.Intra-cellhandoverisalwaysinternal.Inter-cellhandovercanbeinternalorexternal.InterWorkingUnit(IWU):unitthatisusedtointerconnectsubnetworksNOTE4:TheIWUcontainstheinterworkingfunctionsnecessarytosupporttherequiredsubnetworkinterworking.MediumAccessControl(MAC)Connection(CONNECTION):associationbetweenonesourceMACMulti-BearerControl(MBC)entityandonedestinationMACMBCentity.ThisprovidesasetofrelatedMACservices(asetoflogicalchannels),anditcaninvolveoneormoreunderlyingMACbearersPortablePart(DECTPortablePart)(PP):physicalgroupingthatcontainsallelementsbetweentheuserandtheDECTairinterface.PPisagenerictermthatmaydescribeoneorseveralphysicalpiecesNOTE5:ADECTPPislogicallydividedintoonePTplusoneormorePortableApplications(PAs).PortableradioTermination(PT):logicalgroupoffunctionsthatcontainsalloftheDECTprocessesandproceduresontheportablesideoftheDECTairinterfaceNOTE6:APTonlyincludeselementsthataredefinedintheDECTCIstandard.Thisincludesradiotransmissionelements(layer1)togetherwithaselectionoflayer2andlayer3elements.RadioFixedPart(RFP):onephysicalsub-groupofaFPthatcontainsalltheradioendpoints(oneormore)thatareconnectedtoasinglesystemofantennasRepeaterPart(REP):WRSthatrelaystheinformationwithinthehalfframetimeintervalWirelessRelayStation(WRS):physicalgroupingthatcombineselementsofbothPTsandFTstorelayinformationonaphysicalchannelfromoneDECTterminationtoaphysicalchannelforanotherDECTterminationNOTE7:TheDECTterminationcanbeaPToranFToranotherWRS.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)93.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACAuthenticationCodeARIAccessRightsIdentityBMCBroadcastMessageControlC/OConnectionOrientedmodeCKCipherKeyCNCarrierNumberCRFPCordlessRadioFixedPartDCKDerivedCipherKeyDECTDigitalEnhancedCordlessTelecommunicationsDLCDataLinkControlFMIDFixedpartMACIdentityFPFixedPartFTFixedradioTerminationGAPGenericAccessProfileIPUIInternationalPortableUserIdentityIWUInterWorkingUnitKSGKeyStreamGeneratorLLMELowerLayerManagementEntityLSBLeastSignificantBitMACMediumAccessControlMBCMultiBearerControlMMIManMachineInterfaceNWKNetworkOA&MOperation,AdministrationandMaintenancePAPortableApplicationPARIPrimaryAccessRightsIdentityPARKPortableAccessRightsKeyPHYPhysicalLayerPMIDPortablepartMACIdentityPPPortablePartPTPortableradioTerminationREPRepeaterPartRFPRadioFixedPartRFPIRadioFixedPartIdentityRMBCRelayMultiBearerControlRPNRadiofixedPartNumberRXReceiveSAPServiceAccessPointSNSlotpairNumberTBCTrafficBearerControlTPUITemporaryPortableUserIdentityTXTransmitUAKUserAuthenticationKeyWRSWirelessRelaystationSIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)104WirelessRelayStation(WRS)4.1IntroductionAWRSisaphysicalgroupingthatcontainsbothFixedradioTermination(FT)andPortableradioTermination(PT)elements,andthattransfersinformationbetweenaRadioFixedPart(RFP)andaPortablePart(PP).TheFTelementactstowardsaPPexactlyasanordinaryRFP.ThePTelementactslikeaPPtowardstheRFP,andislockedtotheclosestRFP.TheWRScontainsinterworkingbetweenitsFTanditsPT,includingtransparenttransferofthehigherlayerDECTservices.WRSlinksmaybecascaded.ComparedtoanRFP,aWRSmayintroducecapacityrestrictionstotheservicesoffered.TherestrictionsmayincreasewiththenumberofcascadedWRSlinks(hops).SingleWRSlinkapplicationscanbegenerallyapplied.However,specialprecautionsareneededwhenapplyingcascadedWRSlinks.Thecapacitymaybetoolow,ortheremaybeaneedtoadjusttheechocontrolrequirements.AWRSshallcomplywiththegeneralFTidentitiesrequirementsforRFPs.InstallingoraddingaWRStoaDECTinfrastructureisnotpossibleoutsidethecontrolofthesystemoperator/installer/owner,whoprovidestherequiredsystemidentities,accessrightsandauthentication/encryptionkeys.ThepresentdocumentdefinestwodifferentWRSconcepts,theCRFPandtheREP,whicharedetailedinclauses5and6respectively.4.2DescriptionPTFTPHLMACDLCNWKLLMELLMEIWUIWU(FT)(PT)WRSFigure1:WRSreferencemodel,ProtocolstackmodelSIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)11TheWRS,asshowninfigure1,providesinterworkingontheDECTairinterfacebetweenaPTandanFTasdescribedinEN300175,Parts1to8,[1]to[8].ThePTmayalsobethePTsideofaWRSinamulti-hopscenario.Thereferencemodeloffigure1establishesthefollowingbasicprinciplesoftheWRS:-interworkingwithPTsasdefinedbyEN300175,Parts1to8,[1]to[8];-interworkingwithFTsasdefinedbyEN300175,Parts1to8,[1]to[8],withadditionsdefinedinthepresentdocument;-interworkingbetweenPTandFTsideisprovidedatMediumAccessControl(MAC)layerandPhysical(PHY)layer;-alogicalgroupingofPTandWRSoperatesasaPT;-alogicalgroupingofFTandWRSoperatesasaFT.LookingtowardsthePTtheWRSisfullyprotocoltransparent.ThePTcannotdistinguishtheWRSfromanyotherRFPwithinanFT.Therefore,theWRSputsnoadditionalrequirementsonthePT.4.2.1PHYlayerfunctionsTheWRSshallfulfilthefollowingPHYlayerrequirements:-theWRSshallfortherelevantpackettypemeetthePPrequirementsinEN300175-2[2]whenitisactingasaPP,andmeettheRFPrequirementsinEN300175-2[2]whenitisactingasanRFP,exceptthatthetimingrequirementsinEN300175-2[2],subclause4.2.4shallbemetbyallWRStransmissionsandthattherequirementinEN300175-2[2],subclause4.2.5ondifferencebetweenreferencetimersshallbedisregarded;-Z-fieldmappingasdefinedinEN300175-2[2],subclause4.8shallbesupported.4.2.2MAClayerfunctionsTheWRSprovidesinterworkingattheMAClayer.TheWRSincorporatesPTandFTfunctionsasdefinedinEN300175-3[3].TheWRSshallfulfiltheobligatoryrequirementsofEN300175-3[3],subclauses11.4and11.6,withthemodificationsasdefinedinthepresentdocument.4.2.3DLClayerfunctionsTheWRSmayincorporateDLClayerPTfunctionalitytosupportcommunicationwiththeFTaccordingtoEN300175-4[4].4.2.4NWKlayerfunctionsTheWRSmayincorporateNWKlayerPTfunctionalitytosupportcommunicationwiththeFTaccordingtoEN300175-5[5].4.2.4.1Over-the-airmaintenanceIfOperation,AdministrationandMaintenance(OA&M)informationtransferissupported,itmayusethe<>informationelement(seeEN300175-5[5],subclause7.7.23)inNWKlayermessages.Thiselementcanaccommodateunstructureduserspecificdata.Forovertheairmaintenance,alinktowardstheWRSiscreatedusingthePPidentityoftheWRS.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)124.2.5IdentitiesTheWRSshallhaveaspecificRadiofixedPartNumber(RPN)identityandPortableAccessRightsKey(PARK).TheRPNmaybetransferredbyover-the-airmaintenanceprocedures.FortransferringtheRPNtotheWRS,theFixedIdentityinformationelementwithidentitytype"ARI+RPNforWRS"shouldbeused.TheWRSmayhaveadditionalspecificPTidentitieswhenPTDLCandNWKlayerfunctionalityisincluded.4.3ServicesTheWRSmaybeusedinallapplicationsasdefinedinETR043[9].TypicalWRSapplicationsarepresentedinETR246[10].TheWRSshallprovidearelayserviceforMAClayerconnectionoriented,broadcastandconnectionlessservicesasdefinedinEN300175-3[3],subclauses5.6and5.7.TheWRSshallprovidetheservicesasgivenintable1.Table1:WRSservicesOfferedserviceSupportCommentS.1TransparencybetweenPTandFTYesS.2MACservicesYesAll,seeEN300175-3[3]S.3OvertheairmaintenanceOptionalS.4PTservices(e.g.authentication)OptionalAsapplicableforacertainapplication(e.g.basedonaprofile)4.4Procedures4.4.1PHYlayerTheWRSshallconformtothePTandFTproceduresasdefinedbyEN300175-2[2].4.4.2MAClayerTheWRSshallconformtothePTandFTproceduresasdefinedbyEN300175-3[3].4.4.2.1ExtendedfixedpartcapabilitiesTheFPcancontrolthehopconfigurationandindicatetheadmittedWRSscenariosbymeansoftheextendedfixedpartcapabilitiesmessage(seeEN300175-3[3]).TheextendedfixedpartcapabilitiesmessageshallbesentbyallWRSsatleastonceevery8multiframes,andallWRSsshallunderstandthismessage.TheWRSshallassumeallWRSsupportbitsbeingsetto'0'whentheFTdoesnottransmitthemessage.4.4.2.2HopcontrolTheWRSthatislockedtoanFTshalldecreasethevalueHOPS(when>0)ofthecorrespondingWRStype(CRFPorREPrespectively;seeclauses5and6inthereceivedextendedfixedpartcapabilitiesmessage(seeEN300175-3[3],subclause7.2.3.5.2.1)forthetransmissionofitsownextendedfixedpartcapabilityinformation.NOTE:Thenumberofhopsshouldbenomorethanone.Useofmorethanonehopmaybesubjecttoagreementwithnationalradioauthorities.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)135CordlessRadioFixedPart(CRFP)ThisclausedefinesrequirementsinadditiontothegeneralrequirementsfortheWRSinclause4.5.1Description5.1.1GeneralThisdescriptionavoidsdefiningspecificimplementationsoftheCRFPforacertainapplication.ETR246[10]clarifiestheoperationoftheCRFPfortypicalapplications.ThisdescriptiondefinesthearchitecturemodeloftheCRFPandadditionalmessagesandproceduresnecessarytosupporttheCRFPsintheDECTenvironment.InthisdescriptionthefullslotframemultiplexingstructureandIN_minimum_delayspeechserviceareusedfordescriptivepurposesonly,andnottorestricttheapplicationoftheCRFPtoaspecificslotstructureorservice.5.1.2ReferencemodelThereferencemodeloffigure1isapplicablefortheCRFP.ThePTsideoftheCRFPiscalledCRFP_PT.TheFTsideoftheCRFPiscalledCRFP_FT.TosupportaCRFP,thefollowingadditionalproceduresaredefinedfortheFT:-MAClayer:accesscontrolofCRFP(forspecificinformationtransfertoCRFPs);-NWKlayer:CipherKey(CK)transfertoCRFP.ThefollowingfunctionsaredefinedfortheCRFPbasedonEN300175,Parts1to8,[1]to[8]:-FTandPTPHYandMAClayertoprovideindependentbearercontroltoPTsandFT;-aselectionofPTDLCandNWKlayertosupportcommunicationbetweenCRFPandFT.ThefollowingadditionalfunctionsandproceduresaredefinedfortheCRFP:-IWUatMACandPHYlayertoprovideinterworkingbetweenCRFP_PTandCRFP_FT;-accesscontrolprocedurestosupportbothrelayandlocalhandlingofdataonthesamebearer;-CKuploadingandinitializationforCRFP_FTMAC.5.1.3MAClayerfunctions5.1.3.1GeneralThebasicfunctionoftheCRFPisdefinedbyitsframemultiplexingstructure.ProceduresaredefinedbasedonthisstructuretoallowtheCRFPtosupportrequiredservices.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)145.1.3.2FramemultiplexingstructureFigure2showsthetypicalframemultiplexingstructureforaCRFPthatsupportsfullslotswithIN_minimum_delay.120012RFP120012120012PPTXRXRXTXTXRXTXRXTXRXTXRXTXRXCRFPFigure2:TypicalframemultiplexingstructureoftheCRFPUseofonehopviaaCRFPwillcauseanadditionaldelayof1frame,nomatterwhattimeslotsareused.TheframemultiplexingstructuresupportsacombinationofbothlinkswithPTsandFTs.InthisdualframemultiplexingstructuretheCRFPmaytransmitorreceiveduringanyslotofaframe.AduplexbearertoeitherthePTorFTisstillsupportedbyacombinationofaCRFPReceive(RX)andTransmit(TX)slotseparatedbyonehalfframe.TheCRFPshallsupporttheframemultiplexingstructuredefinedas:-CRFP-PTframesandCRFP-FTframesaresynchronizedtotheFTframes;-CRFP-PTandCRFP-FTbearercontrolcompliesatleastwithEN300175-3[3](e.g.Duplexbearersareseparatedbyonehalfframe);-relayedlogicalchannelsarebufferedtosupportMACmultiplexingrulesofCRFP-PTandCRFP-FT;-availableslotsoftheCRFParemarkedtobeeitherReceive(RX)orTransmit(TX)slots.AslotshallberegardedasTXslotonlywhenitisactuallyusedfortransmission;NOTE1:Duringthefirsthalfframe(e.g.Slot0to11)allRXslotslistentoFTtransmissionsandallTXslotstransmittoPTs.DuringthesecondhalfframeallRXslotslistentoPTsandallTXslotsshouldtransmittoFT.-RXandTXslotsofonerelayedbearerbelongtothesamehalfframe.NOTE2:InidlemodetheCRFPlistenstoanFTduringallframes,transmitsatleastonedummybearer(seeEN300175-3[3])toPTsandperformsreceiverscanningonallotherslots.IdlereceiverscanningisdoneinaccordancewithPTandFTidlereceiverscanprocedures.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)155.1.3.3LogicalchannelmappingTheCRFP_PTandCRFP_FTshallfulfilthemultiplexingrulesasdefinedinEN300175-3[3].HandlingoflogicalchanneldatareceivedatCRFP_PTshallbeasfollows:ME-SAP(Q,N,P,M):datashallbedeliveredtotheLowerLayerManagementEntity(LLME)ofCRFP.TheLLMEoftheCRFPshallalsogenerateinformationfortheBMCoftheCRFP_FT;MA-SAP(BS):datashallbedeliveredtothehigherlayerandtotheIWUoftheCRFP.TheIWUshallissueaMAC-PAGE.ReqfortheBMCoftheCRFP_FT;MB-SAP(CL,SIN,SIP):datashallbedeliveredtothehigherlayerandtotheIWUoftheCRFP;MC-SAP(C,I,GF):U-planedatashallalwaysberelayedbytheIWU.DependingontheCRFPstate,theC-planedatashallbedeliveredasfollows:-in"localstate",allC-planedataisdeliveredtohigherlayers;-in"relaystate",allC-planedataisdeliveredtotheIWUforrelayatCRFP_FT.Thelocalandrelaystateofaconnectionaredefinedinsubclause5.3.1.1.AllotherlogicalchanneldataishandledlocallyintheCRFP_PTandCRFP_FTMAC.LogicalchanneldatareceivedatCRFP_FTrelatedtotheMB-SAPandMC-SAPshallbedeliveredtotheIWUforrelay.ME-SAPdatashallbedeliveredtotheLLMEoftheCRFP.Delaylogicalchannels:LogicalchannelinformationthatisrelayedintheCRFPshallbearaminimumdelaywithintheconstraintsofthemultiplexingrulesasdefinedinsubclause6.2.2ofEN300175-3[3].IN_minimum_delayinformation,likespeech,shallberelayedinthesameornextframe,dependinguponbearerposition.5.1.3.4QualityControlandFlowControlTheCRFPhasseparatequalitycontrolandflowcontrolonthetwolinks.ForC-channelandIPchannelflowcontrol,forantennaswitchrequestsandslidingcollisiondetection,theBCKandQ2bitsshallbeusedforeachlinkandtheproceduresasdescribedinEN300175-3[3]shallbefollowedforeachlinkindependently.IftheCRFPreceivesaB-fieldwithcorruptINdata(X-CRCfailed)thenitshallrelaythisdataandchangetheB-fieldidentifications(a4,a5anda6bits)to'001'B.IftheCRFPreceivesaB-fieldwithcorruptIPerrordetectdatathenitshallrelaythisdataandchangetheB-fieldidentifications(a4,a5anda6bits)to'000'B.5.1.4NWKlayerfunctionsAdditionalfunctionalityinNWKlayerandLLMEofbothFTandCRFPisdefinedtosupportover-the-airCKtransfer(forencryptionofrelayedconnections)andOA&M.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)165.1.5Identities5.1.5.1IdentitiesandaddressingTheconnectionsintheCRFPareidentifiedbyPortablepartMACIdentities(PMIDs).RelayedconnectionsshallusethePMIDofaPT.ConnectionsinlocalstateshalluseaPMIDoftheCRFP.Toallowmultiplelocalconnectionssimultaneously,theCRFPshallprovidemultiplePMIDs.EachPMIDshouldberelatedtoadifferentInternationalPortableUserIdentity(IPUI)oftheCRFP.ThereforetheCRFPmaycomprisemultipleIPUIs.Bothinrelaystateandlocalstate,theFMIDusedtoaddressaCRFPisderivedfromthePARIoftheFTandtheRPNoftheCRFPandtheFMIDusedtoaddressaRFPisderivedfromthePARIoftheFTandtheRPNoftheRFPaccordingtoEN300175-3[3].ThePARKshouldbethesameforallIPUIsoftheCRFP.AttheNWKlayertheFTcanaddresstheCRFPasaPT.TheCRFPmaydefineoneIPUIoftheavailableones,whichshallbeusedforover-the-airmaintenance.TheFTmayaddressotherIPUIsoftheCRFPtoderiveDerivedCipherKey(DCK)fromaUserAuthenticationKey(UAK).5.1.5.2SubscriptiondataInordertoensureinterworkingoftheCRFPwithinaFPwithPTs,itisnecessarytoinstalltheparametersgivenintable2intotheCRFPduringsubscription.TheinstallationprocedureisimplementationdependentandmayrequireaManMachineInterface(MMI).Itisrecommendedtouseover-the-airmaintenanceprocedurestoallowon-airinstallationofmostparameters.Table2:CRFPparametersParameterOptional/MandatoryValueCommentRPNMAllPARIisrelayedfromFTandcombinedwithRPNofCRFPtoprovideRFPIPARKMAllPARKshouldbethesameforallCRFPusersIPUI(1.n)OAllnisthenumberofCRFPusersUAK/AC(1.n)OAllnisthenumberofCRFPusersCKOAllCKmaybederivedfromUAKNOTE:ThenumberofCRFPusersisthemaximumnumberofsimultaneousconnectionsfromtheCRFPthatrequirehigherlayercontrolintheCRFP.5.2Messages5.2.1MAClayercontrolTheCRFPusesthemessagesindicatedwith"**"inEN300175-3[3],subclauses7.2.5.2.2,7.2.5.3.1and7.3.3.1only,withthe"firstPTtransmission"codeforthefirsttransmissiontoanFT.ForallothertransmissionsofthesemessagestheCRFPshallusethesemessageswithoutthe"firstPTtransmission"code.Inallfollowingmessagediagrams,thenotationaccess.reqindicatesanaccess.reqmessagewiththe"firstPTtransmission"code,andthenotation*access.reqindicatesamessagewithoutthe"firstPTtransmission"code.SIST EN 300 700:2001

ETSIETSIEN300700V1.2.1(2000-09)175.3Procedures5.3.1MAClayer5.3.1.1ConnectionOrientedmode(C/O)proceduresatCRFPThefollowingproceduresprovidemeanstoaddressCRFPsononephysicalrelayedconnectionofaFTwithaPT.TheconnectionwiththePTiseitherinrelaystateorlocalstate.Inrelaystate,allhigherlayerC-planesignallingshallberelayedbytheCRFPsbetweenFTandPT.Inlocalstate,allhigherlayerC-planesignallingshallbebufferedattheFTandCRFP.ThelocalstateisatemporarystatetoallowhigherlayercommunicationbetweenFTandaspecificCRFP.5.3.1.1.1CreationofaRelayMultiBearerControl(RMBC)ToperformarelayfunctionintheCRFP,aRMBCisdefinedintheMACIWU.ThecreationofanRMBCintheIWUoftheCRFPisverysimilartothecreationofMBCsasspecifiedinEN300175-3[3],subclause10.2.4.1.TosetuparelayservicetheRMBCcanuseanormalbearersetuporadualbearersetupdependingonthecurrentmodeoftheCRFP(subclause5.3.5.1).5.3.1.1.2NormalC/ObearersetupUsingthenormalbearersetuptheFTdoesnotrecognizethatthebearersetupisarrivingfromaCRFP,theCRFP_PToperatesasaPT.TheCRFPconnectionshallalwaysbein"relaystate".BelowthecallingsideshallbetheinitiatingPTor
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