Samsung Electronics Co SLS-BD106Q RRH (Remote RF Head) User Manual

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XXXX-000000Ver.1.0MobileWiMAXRASU-RASFlexibleV2SystemDescription

COPYRIGHTThisdescriptionisproprietarytoSAMSUNGElectronicsCo.,Ltd.andisprotectedbycopyright.Noinformationcontainedhereinmaybecopied,translated,transcribedorduplicatedforanycommercialpurposesordisclosedtothethirdpartyinanyformwithoutthepriorwrittenconsentofSAMSUNGElectronicsCo.,Ltd.TRADEMARKProductnamesmentionedinthisdescriptionmaybetrademarksand/orregisteredtrademarksoftheirrespectivecompanies.Thisdescriptionshouldbereadandusedasaguidelineforproperlyinstallingandoperatingtheproduct.Thisdescriptionmaybechangedforthesystemimprovement,standardizationandothertechnicalreasonswithoutpriornotice.Ifyouneedupdateddescriptionsorhaveanyquestionsconcerningthecontentsofthedescriptions,contactourDocumentCenteratthefollowingaddressorWebsite:Address:DocumentCenter3rdFloorJeong-bo-tong-sin-dong.Dong-SuwonP .O.Box105,416,Maetan-3dongYeongtong-gu,Suwon-si,Gyeonggi-do,Korea442-600Homepage:http://www.samsungdocs.com©2012SAMSUNGElectronicsCo,.LTD.Allrightsreserved.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionINTRODUCTIONPurposeThisdescriptiondescribesthecharacteristics,functionsandstructuresoftheU-RASFlexibleV2,whichistheRASofMobileWiMAX.DocumentContentandOrganizationThisdescriptioniscomposedofvechaptersandanabbreviationasfollows:CHAPTER1.OverviewofSamsungMobileWiMAXSystem•SamsungMobileWiMAXSystemIntroduction•ComponentsofSamsungMobileWiMAXNetworkCHAPTER2.OverviewofSystem•SystemIntroduction•Majorfunctions•Resources•InterfacebetweentheSystemsCHAPTER3.SystemStructure•HardwareStructure•SoftwareStructureCHAPTER4.MessageFlow•CallProcessingMessageFlow•NetworkSynchronizationMessageFlow•AlarmMessageFlow•LoadingMessageFlow•OperationandMaintenanceMessageFlowCHAPTER5.AdditionalFunctionsandTools•RET•Web-EMT©SAMSUNGElectronicsCo.,Ltd.I

INTRODUCTIONABBREVIATIONDescribestheacronymsusedinthisdescription.ConventionsThefollowingtypesofparagraphscontainspecialinformationthatmustbecarefullyreadandthoroughlyunderstood.Suchinformationmayormaynotbeenclosedinarectangularbox,separatingitfromthemaintext,butisalwaysprecededbyaniconand/oraboldtitle.NOTEIndicatesadditionalinformationasareference.RevisionHistoryVERSIONDATEOFISSUEREMARKS1.006.2012.FirstVersionIIⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionTABLEOFCONTENTSINTRODUCTIONIPurpose.................................................................................................................IDocumentContentandOrganization.........................................................................IConventions..........................................................................................................IIRevisionHistory....................................................................................................IICHAPTER1SamsungMobileWiMAXNetwork1-11.1IntroductiontoSamsungMobileWiMAX................................................................1-11.2SamsungMobileWiMAXNetworkConguration.....................................................1-5CHAPTER2OverviewofSystem2-12.1SystemIntroduction............................................................................................2-12.2MainFunctions...................................................................................................2-42.2.1PhysicalLayerProcessingFunction.............................................................2-42.2.2CallProcessingFunction...........................................................................2-62.2.3IPProcessingFunctions............................................................................2-82.2.4AuxiliaryDeviceInterfaceFunction..............................................................2-92.2.5MaintenanceFunction...............................................................................2-92.3Specications....................................................................................................2-132.4InterfacebetweenSystems..................................................................................2-16CHAPTER3SystemStructure3-13.1HardwareStructure.............................................................................................3-13.1.1DMB......................................................................................................3-43.1.2RRH......................................................................................................3-73.1.3DPM-FI.................................................................................................3-113.1.4CoolingStructure....................................................................................3-133.1.5ExternalInterfaceStructure.......................................................................3-133.2SoftwareStructure.............................................................................................3-163.2.1SoftwareBasicStructure...........................................................................3-16©SAMSUNGElectronicsCo.,Ltd.III

TABLEOFCONTENTS3.2.2CCBlock...............................................................................................3-173.2.3OAMBlock.............................................................................................3-19CHAPTER4MessageFlow4-14.1CallProcessingMessageFlow.............................................................................4-14.1.1InitialEntry..............................................................................................4-14.1.2Authentication..........................................................................................4-34.1.3StateTransition........................................................................................4-64.1.4LocationUpdate......................................................................................4-114.1.5Paging..................................................................................................4-154.1.6Handover...............................................................................................4-164.1.7Disconnection.........................................................................................4-234.2NetworkSynchronizationMessageFlow...............................................................4-254.3AlarmSignalFlow..............................................................................................4-264.4LoadingMessageFlow.......................................................................................4-284.5OperationandMaintenanceMessageFlow............................................................4-30CHAPTER5AdditionalFunctionsandTools5-15.1RET...................................................................................................................5-15.2Web-EMT...........................................................................................................5-2ABBREVIATIONIIVⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0LISTOFFIGURESFigure1.1CongurationofMobileWiMAXSystemFunctions(BasedonProleC)...........1-3Figure1.2SamsungMobileWiMAXNetworkConguration........................................1-5Figure2.1IPv4/IPv6DualStackOperation..............................................................2-8Figure2.2StructureofU-RASFlexibleV2Interface.................................................2-16Figure2.3ProtocolStackbetweenNEs.................................................................2-16Figure2.4ProtocolStackbetweenU-RASFlexibleV2andWSM................................2-17Figure3.1DUConguration(SMFS-F)....................................................................3-1Figure3.2RRH-B4Conguration..........................................................................3-2Figure3.3InternalCongurationofSystem(MIMO,2Carrier/3Sector)...........................3-3Figure3.4InternalCongurationofSystem(ExampleofMIMOand6Subcell)..............3-4Figure3.5DMBConguration...............................................................................3-5Figure3.62T2RSplitModeofRRH-B4..................................................................3-8Figure3.7SectorCongurationExampleUsingRRH-B4............................................3-9Figure3.8OmniCongurationExampleUsingRRH-B4............................................3-10Figure3.96SubcellCongurationExampleUsingRRH-B4.......................................3-11Figure3.10DPM-FIConguration........................................................................3-11Figure3.11PowerStructureofU-RASFlexibleV2...................................................3-12Figure3.12FanConguration..............................................................................3-13Figure3.13CoolingStructureoftheDU.................................................................3-13Figure3.14ExternalInterfacesofU-RASFlexibleV2(MIMO)....................................3-14Figure3.15SoftwareStructureofSystem..............................................................3-16Figure3.16CCBlockStructure............................................................................3-17Figure3.17OAMSoftwareStructure.....................................................................3-19Figure3.18InterfacebetweenOAMBlocks............................................................3-19Figure4.1InitialEntryProcedure...........................................................................4-1Figure4.2AuthenticationProcedure(DuringInitialEntry)...........................................4-3Figure4.3AuthenticationProcedure(DuringAuthenticatorRelocation).........................4-5Figure4.4AwakeMode→IdleModeStateTransitionProcedure(MS-Initiated)..............4-7Figure4.5AwakeMode→IdleModeStateTransitionProcedure(Network-Initiated)................................................................................................4-7Figure4.6AwakeMode→SleepModeStateTransitionProcedure..............................4-8Figure4.7IdleMode→AwakeModeStateTransitionProcedure(QCS).......................4-9Figure4.8Inter-RASLocationUpdateProcedure.....................................................4-11Figure4.9Inter-ACRLocationUpdateProcedure(PMIP)..........................................4-12Figure4.10Inter-ACRLocationUpdateProcedure(SimpleIP)...................................4-14Figure4.11PagingProcedure..............................................................................4-15Figure4.12Inter-RASHandoverProcedure............................................................4-16©SAMSUNGElectronicsCo.,Ltd.V

TABLEOFCONTENTSFigure4.13Inter-ASNHandover(ASN-AnchoredMobility).........................................4-19Figure4.14Inter-ASNHandover(CSN-AnchoredMobility)........................................4-22Figure4.15Disconnection(AwakeMode)..............................................................4-23Figure4.16Disconnection(IdleMode)...................................................................4-23Figure4.17NetworkSynchronizationFlowofU-RASFlexibleV2................................4-25Figure4.18AlarmSignalFlowofU-RASFlexibleV2................................................4-26Figure4.19AlarmandControlStructureofU-RASFlexibleV2...................................4-26Figure4.20LoadingMessageFlow.......................................................................4-29Figure4.21OperationandMaintenanceSignalFlow................................................4-30Figure5.1RETInterface......................................................................................5-1Figure5.2Web-EMTInterface..............................................................................5-2VIⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionCHAPTER1.SamsungMobileWiMAXNetwork1.1IntroductiontoSamsungMobileWiMAXTheMobileWiMAXsystemisthewirelessnetworksystemthatsupportsIEEE802.16baseservice.TheIEEE802.16standardisthebasisofMobileWiMAX,andincludesIEEEStd802.16-2004deningxedwirelessinternetaccessserviceandIEEEStd802.16,P802.16-2004/Cor/D3deningthetechnologiessupportingmobility,whichincludehandover,paging.SamsungMobileWiMAXStandardInthisdescription,theentireSamsungMobileWiMAXstandardisexpressedIEEE802.16.ThewirelessLAN(WLAN,WirelessLocalAreaNetwork)canprovidehighspeeddataservices,butitsradiowaveisshortandcoversonlysmallareas,andalsogiveslimitedusermobility.ItisdifcultforWLANtoensureQualityofService(QoS)fordataservice.Onthecontrary,thepresentmobilecommunicationnetworkssupportthemobilityoftheusers,buttheservicechargeandthecostofsystemoperationsarehighduetothelimitedwirelessresources.Toprovidefasterserviceintheexistingmobilecommunicationnetworks,itrequiresaseparatewirelesscommunicationtechnologysuchasHighSpeedDownlinkPacketAccess(HSDPA)forthedataservices.SamsungMobileWiMAXcan,therefore,overcomethelimitationsoftheWLANandpresentmobilecommunicationnetworks,andaccommodateonlytheadvantagesofthesystem.SamsungMobileWiMAXcanultimatelyprovidethehighspeedwirelessinternetserviceswithlowcostatanytimeandinanyplace.Inaddition,theIEEE802workinggroupisintheprocessofamendingtheIEEE802.16etodevelopthemoreadvancedtechnologystandard,802.16m.The802.16mtechnologystandardwillbeamajorstepfromtheactualMobileWiMAX,andwillbereectedintheIMT-AdvancedstandardoftheITU-R.The802.16mstandard,whichcansubstitutethecurrent802.16estandard,willprovideafasterdownload(above150Mbpsat20MHzbasis),afasterupload(above50Mbpsat20MHzbasis)andaconsistentserviceunder350km/hspeedmovement,whileensuringmutualcompatibilitywith802.16e.TheWiMAXforumplanstopromotetheWiMAXRelease2.0specicationbasedonthe802.16mstandard.©SAMSUNGElectronicsCo.,Ltd.1-1

CHAPTER1.SamsungMobileWiMAXNetworkCharacteristicsoftheSamsungMobileWiMAXSystemThemajorcharacteristicsofSamsungMobileWiMAXsystemarelistedbelow.•HighCompatibilityandCross-InterworkingTheSamsungMobileWiMAXsystemisbasedonIEEE802.16-2005standardandcomplieswithWave2ProleandASNProleCoftheMobileWiMAXForum.Therefore,theSamsungMobileWiMAXsystemprovideshighcompatibilityandexcellentcross-interworking.•HighPerformanceModuleStructureTheSamsungMobileWiMAXsystemhashighperformancebyusinghigh-performanceprocessorandprovidesthemodulestructurethatitiseasytoupgradehardwareandsoftware.•HighSystemStabilityTheSamsungMobileWiMAXsystemprovidestheredundancystructureformainmodulestoensurehigherstability.•AdvanceRFandAntennaSolutionSupportTheSamsungMobileWiMAXsystemappliesthepowerampliertosupportwidebandoperationbandwidthandsupportsMultipleInputMultipleOutput(MIMO)indefault.•EvolutionPossibilityintoNextGenerationNetworkingTheSamsungMobileWiMAXsystemcomplieswiththestructureoftheMobileWiMAXASNProleCnetworkandtheASNProleCnetworkcompositionissimilartothenetworkstructureconsideredin3GPPLongTermEvolution(LTE)/ServiceArchitectureEvolution(SAE).Therefore,theSamsungMobileWiMAXsystemcaneasilyevolveintothenextgenerationnetwork.•MaintenanceFunctionwithStrengthenedSecurityTheSamsungMobileWiMAXsystemcanprovidesthesecurityfunction(SSHandHTTPs)toallchannelsforoperationandmaintenance.TheSamsungMobileWiMAXsystemprovidestheoperatorAuthentication,AuthorizationandAccounting(AAA)functiontoauthenticatetheoperatorandassigntherightforsystemaccessandstorestheoperationhistoryinalog.SamsungMobileWiMAXSystem(ACRandRAS)FunctionsSamsungMobileWiMAXSystemprovideshighspeeddataservicesusingthetransmissiontechnologyofOrthogonalFrequencyDivisionMultipleAccess(OFDMA)bytheTimeDivisionDuplex(TDD),andcangivewidercoveragecomparedtotheexistingWLAN.Thesystemperformanceandthecapacityhavebeenexpandedbythehighperformancehardware,andthus,itcaneasilygivevariousfunctionsandservicestotheusers.SystemSupportStandardsNetworkWorkingGroup(NWG)ofMobileWiMAXForumdenestheMobileWiMAXnetworkasAccessServiceNetwork(ASN)andConnectivityServiceNetwork(CSN).RASofSamsungisBaseStation(BS)andACRisASN-GW(Gateway)ofASN,respectively.RASandACRarebasedonASNProleCandWave2ProledenedintheMobileWiMAXForumandtheWave2ProlecontainsWave1Prole.1-2ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0ThegurebelowshowsthefunctionsoftheASNsystems(ACRandRAS)basedonProleC.EachblocknamecomplieswiththestandardofMobileWiMAXNWG.Figure1.1CongurationofMobileWiMAXSystemFunctions(BasedonProleC)TheACRsupportstheConvergenceSublayer(CS)andperformsthepacketclassicationandPacketHeaderSuppression(PHS)functions.WhentheACRcarriesouttheheadercompressionfunction,itsupportsRobustHeaderCompression(ROHC)denedintheNWGstandard.Inaddition,theACRperformsthepagingcontrollerandlocationregisterfunctionsforanMSinIdleMode.Inauthentication,theACRperformstheauthenticatorfunctionandcarriesoutthekeydistributorfunctiontomanagethehighersecuritykeybyinterworkingwiththeAAAserverasanAAAclient.Atthistime,RASperformsthekeyreceiverfunctiontoreceivethesecuritykeyfromthekeydistributorandmanageit.TheACRinterworkswiththeAAAserverofCSNforauthenticationandchargingservicesandwiththeHAofCSNforMobileIP(MIP)service.TheACRasFAofMIPsupportsProxyMIP(PMIP).TheRASperformstheServiceFlowManagement(SFM)functiontocreate/change/releaseconnectionsforeachServiceFlow(SF)andtheadmissioncontrolfunctionwhilecreating/changingconnections.InregardtotheSFMfunctionoftheRAS,theACRcarriesouttheSFAuthentication(SFA)andSFIDmanagementfunctions.TheACRcarriesouttheSFAfunctiontoobtaintheQoSinformationfromPolicyFunction(PF)andapplyitinthe©SAMSUNGElectronicsCo.,Ltd.1-3

CHAPTER1.SamsungMobileWiMAXNetworkSFcreationandperformstheSFIDmanagementfunctiontocreate/change/releaseSFIDandmapSFaccordingtothepacketclassication.Inhandover,theRASperformsthehandovercontrolfunctiontodeterminetheexecutionofthehandoveranddealwithcorrespondinghandoversignaling.TheACRconrmstheneighborRASlistandrelaysthehandoversignalingmessagetothetargetsystem.Atthistime,theACRandtheRAScarriesoutthecontextfunctiontoexchangethecontextinformationbetweenthetargetsystemandtheservingsystem.TheRASperformstheRadioResourceControl(RRC)andRRAgent(RRA)functionstocollect/managetheradioresourceinformation(e.g.,BSID)fromMSsandtheRASitself.ASNSystemFunctionForthedetaileddescriptionaboutthesystemfunctions,refertothesystemdescriptionforeachsystemprovidedbySamsung.1-4ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.01.2SamsungMobileWiMAXNetworkCongurationSamsungMobileWiMAXnetworkiscomposedofASN,CSN,andWSM.WSMistheNetworkElement(NE)tomanageACRandRAS.ASNisconnectedwithCSNbyrouterandswitch.ThefollowingdiagramshowsthecompositionofSamsungMobileWiMAXnetwork.Figure1.2SamsungMobileWiMAXNetworkCongurationRadioAccessStation(RAS)RASasthesystembetweenACRandMShastheinterfacewithACRandprovidesthewirelessconnectiontoMSunderIEEE802.16standardstosupportwirelesscommunicationserviceforsubscribers.RAScarriesoutwirelesssignalexchangewithMS,modulation/demodulationsignalprocessingforpackettrafcsignal,efcientuseofwirelessresources,packetschedulingforQualityofService(QoS)assurance,assignmentofwirelessbandwidth,AutomaticRepeatrequest(ARQ)processingandrangingfunction.Inaddition,RAScontrolstheconnectionforpacketcallsandhandover.©SAMSUNGElectronicsCo.,Ltd.1-5

CHAPTER1.SamsungMobileWiMAXNetworkAccessControlRouter(ACR)ACR,whichisthesystembetweenCSNandRAS,enablesseveralRASstointerworkwithIPnetwork,sends/receivestrafcbetweenexternalnetworkandMS,andcontrolsQoS.Also,theACRprovidesinterfacefortheNE(AAAserver,etc.)oftheCSN.SamsungMobileWiMAXSystemManager(WSM)WSMprovidesthemanagementenvironmentfortheoperatortooperateandmaintainACRandRAS.HomeAgent(HA)HAaccessesothernetworksorprivatenetworksandenablesMobileIP(MIP)userstoaccessinternet.HAinterworkswithACRthatperformsForeignAgent(FA)functiontoexchangePMIPv4signallingandbearertrafc.Authorization,AuthenticationandAccounting(AAA)ServerAAAserverinterfaceswithACRandcarriesoutsubscriberauthenticationandaccountingfunctions.TheAAAserverinterfaceswithACRviaDiameter/RADIUSprotocolandprovidesExtensibleAuthenticationProtocol(EAP)certication.DynamicHostCongurationProtocol(DHCP)ServerTheDHCPserverallocatesIPaddressestosimpleIPusers.WhenanMSrequestsanIPaddressallocation,theDHCPserverallocatesanIPaddressininteroperationwiththeACRthatfunctionsastheDHCPrelayagentandsendsittotheACR.Policy&ChargingRulesFunction(PCRF)ServerThePCRFserveristheserverthatmanagestheservicepolicyandinterfaceswithACRviaDiameterprotocol.ThePCRFserversendsQoSsettinginformationforeachusersessionandaccountingruleinformationtoACR.1-6ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionCHAPTER2.OverviewofSystem2.1SystemIntroductionTheU-RASFlexibleV2,RASofMobileWiMAX,iscontrolledbyACRandconnectsMobileWiMAXcallstoMS.TheU-RASFlexibleV2interfaceswithMSviaawirelesschannelobservingtheMobileWiMAXstandard(IEEE802.16)andprovideshigh-speeddataserviceandmultimediaserviceinwirelessbroadband.Tothisend,theU-RASFlexibleV2providesthefollowingfunctions:modulation/demodulationofpackettrafcsignal,schedulingandradiobandwidthallocationtomanageairresourcesefcientlyandensureQualityofService(QoS),AutomaticRepeatrequest(ARQ)processing,rangingfunction,connectioncontrolfunctiontotransmittheinformationontheU-RASFlexibleV2andset/hold/disconnectthepacketcallconnection,handovercontrolandACRinterfacefunctionandsystemoperationmanagementfunction.Physically,theU-RASFlexibleV2consistsofaDigitalUnit(DU)andaMobileWiMAXbasestationRemoteRadioHead(RRH).TheRRHislocatedremotelyfromtheDU.TheDUisadigitalunitof19in.shelfformandcanbeinstalledinanindoororoutdoor19in.rack.Itsupportsacapacityupto2Carrier/3Sector.TheDUisoperatedinomniorsectormodedependingonthefeaturesoftheinstallationlocation.AnRRHisastandaloneRFunit.Itisinstalledonanoutdoorwallorpole.U-RASFlexibleV2supports2Carrier/3Sector(6subcell).ApplicationoftheOFDMAMethodOFDMAisusedtotransmitdatatoseveraluserssimultaneouslybyusingthesub-carrierallocatedtoeachuserandtransmitdatabyallocatingoneormoresub-carrierstoaspecicsubscriberaccordingtothechannelstatusandthetransmissionraterequestedbyauser.Inaddition,sinceitcanselectthesub-carrierswithexcellentfeaturesforeachsubscriberandallocatethemtothesubscriberswhensomesubscribersdivideandusethewholesub-carrier,itcanraisethedatathroughputbydistributingtheresourcesefciently.SeparateDUandRRHStructureAstheU-RASFlexibleV2consistsofaDUandanRRH,itiseasytosetupanetworkanditiseasytochangethenetworkconguration.ForconnectionsbetweentheDUandRRH,datatrafcsignalsandOAMinformationaresent/receivedthroughthe‘DigitalI/QandC&M’interfacebasedontheCommonPublicRadioInterface(CPRI).Physically,opticcablesareused.EachoftheDUsandRRHsreceives-48VDCofpowerforitsoperation.©SAMSUNGElectronicsCo.,Ltd.2-1

CHAPTER2.OverviewofSystem•VersatileNetworkOperationTheRRHcannotoperateonitsown,butoperatesbybeinglinkedtotheDU.TheRRHishighlyexibleinitsinstallation,andhelpswithsettingupanetworkinavarietyofcongurationsdependingonthelocationandoperationmethod.•EasyInstallationTheopticinterfacecomponentthatinterfaceswiththeDUandtheRFsignalprocessingcomponentisintegratedintotheRRH,whichbecomesaverysmallandverylightsingleunit.Therefore,theRRHcanbeinstalledonawallorpole.Moreover,asthedistancebetweentheRRHandantennaisminimized,thelossofRFsignalsduetotheantennafeederlinecanbereducedsothatmoreenhancedRFreceivingperformancethantheexistingrack-typeRAScanbeprovided.•NaturalCoolingBecausetheRRHisinstalledoutdoorsandhasanefcientdesign,itcanradiateheatefcientlywithoutanyadditionalcoolingsystem.Therefore,noadditionalmaintenancecostisneededforcoolingtheRRH.•LoopbackTestTheU-RASFlexibleV2providestheloopbacktestfunctiontocheckwhethercommunicationisnormalonthe‘DigitalI/QandC&M’interfacelinebetweentheDUandRRH.•RemoteFirmwareDownloadingTheoperatorcanupgradetheRRHanditsservicebyreplacingitsrmware.Withoutvisitingtheeldstation,theoperatorcandownloadrmwaretotheRRHremotelyusingasimplecommandfromtheWSM.Inthisway,operatorscanminimizethenumberofvisitstotheeldstation,reducingmaintenancecostsandallowingthesystemtobeoperatedwithgreaterease.•MonitoringPortOperatorscanmonitortheinformationforanRRHusingitsdebugport.SupportofMIMOTheU-RASFlexibleV2supportsMIMOthroughthe2Tx/2RxRFpathoftheRRH.ThefollowingmethodsareavailableinMIMO:•Downlink–SpaceTimeCoding(STC):methodforraisingreliabilityoflink–SpatialMultiplexing(SM):methodforraisingdatatransmissionrate•UplinkCollaborativeSM(CSM):methodfordoublingthefrequencyefciencySupportofFrequencyReusePattern(FRP)TheU-RASFlexibleV2supportsFRPN=1thatprovidestheserviceto3-sectorbyusingacarrierandFRPN=3thatprovidestheserviceto3-sectorbyusingdifferentcarriers.AserviceprovidercanefcientlyoperateitsownfrequencyresourcesbyusingtheFRPfunction.2-2ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0SupportofSmoothMigrationDUofU-RASFlexibleV2canbemigratedtoTD-LTEbyaddthechannelcardandupgradingthesoftware.RRHofU-RASFlexibleV2canbemigratedtoTD-LTEinsameRFbandbyonlysoftwareupgrade,andRRHcansupport802.16eandTD-LTEatthesametime.SystemFeatureAvailabilityFortheavailabilityofaspecicfeaturedescribedinthissystemdescription,pleaseseearelevantdocumentprovidedseparately.©SAMSUNGElectronicsCo.,Ltd.2-3

CHAPTER2.OverviewofSystem2.2MainFunctionsThemainfunctionsoftheU-RASFlexibleV2areasfollows:•Physicallayerprocessingfunction•Callprocessingfunction•IPprocessingfunctions•Auxiliarydeviceinterfacefunction•Convenientoperationandmaintenancefunction2.2.1PhysicalLayerProcessingFunctionOFDMARangingTherangingsupportedbytheOFDMAsystemisroughlydividedbytheuplinktimingsynchronizationmethodandthecontentionbasedbandwidthrequestmethod.•UplinkTimingSynchronizationIntheuplinktimingsynchronizationmethod,theU-RASFlexibleV2detectsthetimingerroroftheuplinksignalbyusingtherangingcodetransmittedfromMSandtransmitsthetimingcorrectioncommandtoeachMStocorrectthetransmissiontimingoftheuplink.Theuplinktimingsynchronizationmethodhasinitialranging,periodicranging,handoverranging,etc.•ContentionBasedBandwidthRequestInthecontentionbasedbandwidthrequestmethod,theU-RASFlexibleV2receivesthebandwidthrequestrangingcodefromeachMSandallocatesuplinkresourcestothecorrespondingMStoenabletotransmitthebandwidthrequestheader.Thecontentionbasedbandwidthrequestmethodhasbandwidthrequestrangingorsomething.ChannelEncoding/DecodingTheU-RASFlexibleV2carriesouttheForwardErrorCorrection(FEC)encodingforthedownlinkpacketcreatedintheupperlayerbyusingConvolutionalTurboCode(CTC).Onthecontrary,itdecodestheuplinkpacketreceivedfromtheMSafterdemodulating.Modulation/DemodulationTheU-RASFlexibleV2carriesouttheFECencodingforthedownlinkpacketcreatedintheupperlayerandmodulatestheencodedpacketintotheQAMsignal.Inaddition,theU-RASFlexibleV2demodulatesanddecodestheuplinkpacketreceivedfromMS.OFDMASub-carrierAllocationThesubchannelizationistheprocesstotiethesub-carriersofOFDMAasatransmissionunitaftergroupingthembyacertainrule.TheU-RASFlexibleV2performsthesubchannelizationtomitigatetheinterferencebetweencells.TheU-RASFlexibleV2mapsthecolumnofthemodulateddownlinkQAMsymbolstructurewitheachsub-carrierandcarriesoutthesubchannelizationwhenthecolumnoftheQAMsymbolstructureistransmittedtotheMSoverthewirelessline.Insuchway,the2-4ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0U-RASFlexibleV2transmitsthecolumnoftheQAMsymbolstructuretotheMSviathesub-carrierspertainedtoeachsubchannel.DL/ULMAPConstructionTheU-RASFlexibleV2informstheairresourcesfortheuplinkandthedownlinktotheMSbyusingDL/ULMAP .TheDL/ULMAPconsistsoftheschedulinginformationoftheU-RASFlexibleV2andincludesvariouscontrolinformationfortheMS.PowerControlTheU-RASFlexibleV2carriesoutthepowercontrolfunctionfortheuplinksignalreceivedfrommultipleMSsandthensetthepowerintensityoftheuplinksignaltoaspeciclevel.TheU-RASFlexibleV2transmitsthepowercorrectioncommandtoeachMSandthenmakestheMSpowerintensitybethelevelrequiredintheU-RASFlexibleV2whentheMStransmitsthemodulateduplinksignalinaspecicQAMmodulationmethod.Hybrid-ARQ(H-ARQ)OperationH-ARQisthephysicallayerretransmissionmethodusingthestop-and-waitprotocol.TheU-RASFlexibleV2carriesouttheH-ARQfunctionandraisesdatathroughputbyre-transmittingorcombiningtheframefromthephysicallayertominimizetheeffectattendingtothechangeofwirelesschannelenvironmentorthechangeintheinterferencesignallevel.MIMOTheU-RASFlexibleV2providestheMIMOfunctionasfollowsaccordingtoMobileWiMAXWave2Prole:•Downlink–MatrixA(STC):TransmissionratiooftheMatrixAorSTCis1andequaltothatofSingleInputSingleOutput(SISO).HoweverTheMatrixAortheSTCreducestheerrorofthesignalreceivedfromtheMSbyraisingthestabilityofthesignalreceivedfromtheMSbymeansoftheTxdiversity.Thistechnologyis,also,effectiveinlowSignaltoNoiseRatio(SNR)andprovidesexcellentperformanceevenwhentheMSmovesinhighspeed.–MatrixB(SM,verticalencoding):MatrixBorSMmethodraisestheeffectivenessofthefrequencybyraisingthetransmissionratioinproportiontothenumberofantennaincomparisonwithSISO.ThistechnologyiseffectivewhenthereceptionSNRishigh.•Uplink–CollaborativeSM:CollaborativeSMisthetechnologythatdoublesthefrequencyefciencyinviewoftheU-RASFlexibleV2astwoMSswitheachindividualantennasenddatasimultaneouslybyusingthesamechannel.TheU-RASFlexibleV2providestheadaptiveMIMOswitchingfunction,whichdynamicallyselectstheSMorSTCmethodforthedownlinkMIMOfunction.TheU-RASFlexibleV2performsswitchingbasedonavaluecalculatedbyreectingtheCarriertoInterferenceandNoiseRatio(CINR)andtransmissionsuccessratesentbyanMS.©SAMSUNGElectronicsCo.,Ltd.2-5

CHAPTER2.OverviewofSystem2.2.2CallProcessingFunctionCellInitializationFunctionTheU-RASFlexibleV2announcestheMACManagementmessagesuchasDCD/UCD/MOB_NBR-ADVtothecellareainserviceperiodicallytoenabletheMSreceivingthemessagetocarryouttheappropriatecallprocessingfunction.CallControlandWirelessResourceAllocationFunctionTheU-RASFlexibleV2enablesanMStoentertoorexitfromthenetwork.WhenanMSenterstoorexitfromthenetwork,theU-RASFlexibleV2transmits/receivesthesignalingmessagerequiredforcallprocessingviaR1interfacewiththeMSorR6interfacewithACR.TheU-RASFlexibleV2allocatesvariousmanagement/transportConnectionIdentier(CID)requiredforthenetworkentryandservicetoanMS.WhentheMSexitfromthenetwork,theU-RASFlexibleV2collectsandreleasetheallocatedCID.HandoverTheU-RASFlexibleV2carriesoutthesignalingandbearerprocessingforinter-sectorHO(Handover),inter-ACRHOandinter-carrierHO.Atthistime,ACRrelaysthehandovermessagebetweenservingRASandtargetRASthroughtheR6interface.Tominimizethetrafcdisconnectionininter-RASHO,theU-RASFlexibleV2performsthedataswitchingfunction.Inhandover,theU-RASFlexibleV2enablestheservingRAStoswitchtheuserdatainqueuingtothetargetRASand,therefore,theMStorecoverthetrafcwithoutloss.HandoverProcedureForthedetailedhandoverprocedure,referto’Handover’section.SupportofSleepModeSleepModeisthemodedenedtosavetheMSpowerunderIEEE802.16standardandindicatesthestatusthatairresourcesallocatedtoanMSarereleasedwhentheMSdoesnotneedtrafcreception/transmissiontemporarily.IftheMSinSleepModeneedsthetrafcreception/transmission,theMSreturnstothenormalstatusimmediately.BothIdleModeandSleepModearemodestosavetheMSpower.TheIdleModereleaseallserviceowsallocatedtoanMS,whiletheSleepModereleasesonlytheairresourcesbetweentheMSandRAStemporarily,continuouslykeepingtheserviceowinformationallocatedtotheMS.TheU-RASFlexibleV2carriesouttherelatedcallprocessingfunctionbyreceiving/sendingthesignalingmessagerequiredforthestatustransitionintoSleepModeofMSandthereturnfromtheSleepModetoAwakeModeofMS.2-6ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0AdmissionControl(AC)FunctionIftheU-RASFlexibleV2receivesthecallsetuprequest,suchasnetworkentry,QuickConnectionSetup(QCS)andhandover,fromanMS,itmonitorsthetrafcandsignalingloadforeachsubcellandthenumberofuserinActive/SleepModeandperformstheACfunctiontopreventthesystemoverload.ACcanberoughlydividedintoACbyMSandACbyserviceow.•ACbyMSIfthenumberofuserswhothesubcellisinActive/SleepModeexceedsthethresholdwhentheU-RASFlexibleV2receivesthecallsetuprequestfromanMS,itrejectsthecallsetuprequestoftheMS.•ACbyserviceowWhenserviceowisadded,theU-RASFlexibleV2checksiftheairresourcesoftherequestedsubcellexceedthethresholdanddeterminesthecreationoftheserviceMACARQFunctionTheU-RASFlexibleV2carriesouttheARQfunctionoftheMAClayer.Inpacketdataexchange,thetransmissionsidetransmitsARQblockwhichSDUisdividedinto,andretransmitsthepacketaccordingtotheARQfeedbackinformationreceivedfromthereceptionsidetoraisethereliabilityofdatacommunication.TheU-RASFlexibleV2carriesoutthefollowingfunctionfortheserviceowsapplyingARQ:•MACManagementcreationandtransmissionconcernedwithARQoperation•FeedbackprocessingdependingonARQtypes•Blockprocessing(fragmentation/reassemble/retransmission)dependingonARQtypes•ARQtimer/windowmanagementQoSSupportFunctionThepackettrafcexchangedbetweenACRandU-RASFlexibleV2isdeliveredtothemodemintheU-RASFlexibleV2.Atthistime,theU-RASFlexibleV2allocatesthequeueinthemodemtoeachserviceowthatQoStypeisspeciedtoobservetheQoSconstraintgivenforeachQoSclassorserviceowandperformsthestrict-priorityschedulingaccordingtothepriority.Themodemthatreceivesthepackettrafcperformstheschedulingbyusingtheuplink/downlinkalgorithm,suchasProportionalFair(PF)orRoundRobin(RR)andtransmitsthescheduledallocationinformationtoanMSthroughDL/ULMAP.TheMSreceivingtheDL/ULMAPcheckstheairresourcesallocatedtotheMSandmodulates/demodulatesthedownlinkpacketortransmitstheuplinkpacketfromtheallocateduplinkarea.SincetheU-RASFlexibleV2providestheQoSmonitoringfunction,itcancompilestatisticsonpacketsunsatisfyingthelatencyrequestedfromtheQoSparameteraccordingtoTDDframesandreportthestatisticstoanoperatorviatheOAMinterface.©SAMSUNGElectronicsCo.,Ltd.2-7

CHAPTER2.OverviewofSystem2.2.3IPProcessingFunctionsIPQoSFunctionSincetheU-RASFlexibleV2supportsDifferentiatedServices(DiffServ),itcanprovidethebackhaulQoSinthecommunicationwithACR.Itsupports8-classDiffServandsupportsthemappingbetweentheDiffServserviceclassandtheserviceclassoftheusertrafcreceivedfromanMS.Inaddition,theU-RASFlexibleV2supportsthemappingbetweenDifferentiatedServicesCodePoint(DSCP)and802.3EthernetMACserviceclass.SimultaneousSupportofIPv4/IPv6ACRcommunicateswiththeU-RASFlexibleV2throughtheGREtunnelandthebackhaulIPversionbetweentheU-RASFlexibleV2andACRismanagedindependentlyfromtheserviceIPversionfortheMS.Evenif,therefore,IPv4isusedinbackhaulbetweentheU-RASFlexibleV2andACR,allofIPv4,IPv6andIPv4/IPv6dualstackservicescanbesupportedfortheMS.Figure2.1IPv4/IPv6DualStackOperationIPRoutingFunctionSincetheU-RASFlexibleV2providesseveralEthernetinterfaces,itstorestheroutingtablewiththeinformationontheEthernetinterfacetorouteIPpackets.TheroutingtableoftheU-RASFlexibleV2iscongureddependingonoperator’ssettingandthecongurationandthesettingoftheroutingtablearesimilartothestandardsettingoftherouter.TheU-RASFlexibleV2supportsthestaticroutingcongurationonlyandnottherouterfunctionforthetrafcreceivedfromtheoutside.WhentheU-RASFlexibleV2connectsanauxiliarydevice,itsupportstheIPpacketroutingfunctionfortheauxiliarydevicebyusingNetworkAddressTranslation(NA T).2-8ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Ethernet/VLANInterfaceFunctionTheU-RASFlexibleV2providestheEthernetinterfaceandsupportsthestaticlinkgroupingfunction,VirtualLocalAreaNetwork(VLAN)functionandEthernetCoSfunctionunderIEEE802.3adfortheEthernetinterface.Atthistime,theMACbridgefunctiondenedinIEEE802.1Disexcluded.TheU-RASFlexibleV2enablesseveralVLANIDstobesetinoneEthernetinterfaceandmapstheDSCPvalueofIPheaderwiththeCoSvalueofEthernetheaderinTxpackettosupportEthernetCoS.2.2.4AuxiliaryDeviceInterfaceFunctionTheU-RASFlexibleV2providestheEthernetinterfacetoconnectauxiliarydevicesandallocatesIPaddressesbyoperatingasaDHCPserverfortheauxiliarydevices.Inaddition,theU-RASFlexibleV2providesthetrafcpathtotransmit/receivethemaintenancetrafcbetweenanauxiliarydeviceandtheremoteauxiliarydevicemonitoringserver.IftheauxiliarydeviceusesaprivateIPaddress,theU-RASFlexibleV2carriesouttheNA TfunctiontochangetheaddressintoapublicIPaddress(i.e.,theIPaddressoftheU-RASFlexibleV2)forthecommunicationwithanexternalmonitoringserver.2.2.5MaintenanceFunctionTheU-RASFlexibleV2interworkingwiththemanagementsystemcarriesoutthefollowingmaintenancefunctions:systeminitializationandrestart,managementforsystemconguration,managementfortheoperationparameters,failureandstatusmanagementforsystemresourcesandservices,statisticsmanagementforsystemresourcesandvariousperformancedata,diagnosismanagementforsystemresourcesandservicesandsecuritymanagementforsystemaccessandoperation.CarrierExpansion(6Subcell)FunctionTheU-RASFlexibleV2cansupportssixsubcellsbymountingthesixchannelcards.Operatorcansettheoperatingsectorandoperatingfrequencyforeachsubcell.(However,RRH-B3supportsuptofoursubcells.)GraphicandText-basedConsoleInterfaceWSMmanagestheentireMobileWiMAXsystembyusingDatabaseManagementSystem(DBMS)andU-RASFlexibleV2interworkswiththisWSM.Inaddition,ACRinterworkswiththeconsoleterminalfordirectlyaccessingtheNEaswellasWSMbyoperatortoperformtheoperationandmaintenancefunction.Foroperator’sconvenienceandworkingpurpose,theoperatorcanselectgraphic-basedconsoleinterface(Web-basedElementMaintenanceTerminal,Web-EMT)ortext-basedconsoleinterface(IntegratedManagementInterfaceShell,IMISH).TheoperatorcanaccesstheconsoleinterfacewithnoseparatesoftwareandlogintoWeb-EMTthroughInternetExploreandIMISHthroughSecureShell(SSH)onthecommandwindow.©SAMSUNGElectronicsCo.,Ltd.2-9

CHAPTER2.OverviewofSystemTheoperatorcancarryouttheretrievalandsetupofthecongurationandtheoperationinformationandmonitoringaboutfaults,statusandstatisticsviaconsoleterminal.However,theoperatorcancarryoutgrow/degrowofresourcesandsettingoftheneighborlistandpaginggroupwhichhavecorrelationbetweenseveralNEsonlyviatheWSM.OperatorAuthenticationFunctionTheU-RASFlexibleV2providestheauthenticationandthepermissionmanagementfunctionsfortheoperatorwhomanagestheMobileWiMAXsystem.TheoperatoraccessestheU-RASFlexibleV2byusingtheoperator’sIDandpasswordviaWeb-EMTorIMISHandtheU-RASFlexibleV2assignstheoperationrightinaccordancewiththeoperator’slevel.TheU-RASFlexibleV2carriesouttheloggingfunctionforsuccessfulaccess,accessfailureandloginhistory.MaintenanceFunctionwithEnhancedSecurityFunctionForthesecurity,theU-RASFlexibleV2supportsHyperTextTransferProtocoloverSSL(HTTPs)andSecureShell(SSH)inthecommunicationwithconsoleterminals.On-lineSoftwareUpgradeWhenasoftwarepackageisupgraded,theU-RASFlexibleV2canupgradethepackagewhilerunningoldversionofsoftwarepackage.Thepackageupgradeisprogressedinthefollowingprocedure:‘AddNewPackage→ChangetoNewpackage→DeleteOldPackage’.Inpackageupgrade,theserviceisstoppedtemporarilybecausetheoldprocessisterminatedandthenewprocessisstartedinthe‘ChangetoNewpackage’stage.However,sinceOSisnotrestarted,theservicewillbeprovidedagainwithinafewminutes.Afterupgradingsoftware,theU-RASFlexibleV2updatesthepackagestoredinanon-volatilestorage.Inaddition,theU-RASFlexibleV2canre-performthe‘ChangetoNewpackage’stagetorollbackintothepreviouspackagebeforeupgrade.CallTraceFunctionTheU-RASFlexibleV2supportsthecalltracefunctionforaspecicMS.TheU-RASFlexibleV2cancarryoutthecalltracefunctionupto2MSspercarrier/sector,andupto10MSspersystem.IfacalloccursintheMSthatanoperatorpreviouslyspeciedviaACR,thesignalingmessageandstatisticaltrafcdataaretransmittedtoWSM.Besides,theU-RASFlexibleV2,also,sendstheRFenvironmentinformation,suchasCarriertoInterferenceandNoiseRatio(CINR)forMS,ModulationandCodingSchemes(MCS)levelandBurstErrorRate(BER).DetailedInformationforEachSessionandServiceFlow(PSMR/PSFMR)TheMobileWiMAXsystemofSamsungcollectsandstoresdetailedinformationofallsessions(PerSessionMeasurementRecord,PSMR)anddetailedinformationofallserviceows(PerServiceFlowMeasurementRecord,PSFMR)toprovideittoanexternallog2-10ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0server.Whenasessionorserviceowiscreated,theMobileWiMAXsystemstartstocollectrelevantinformation,andwhenthesessionorserviceowterminates,thesystemcreatesandstoresamessageinalesothattheexternallogservercancollectthemessage.TheinformationcollectedbytheACRincludessessionterminationtime,initialandnalhandoverinformation(handovertypes,cellinformation),andtheMACaddressandIPaddressallocatedtotheMS.TheU-RASFlexibleV2collectssuchinformationasMSMACaddresses,continuedsessiontime,continuedserviceowtime,turnaroundtimefornetworkentry,CID,SFID,initialandnalwirelessqualityinformation(RSSI,CINR,Txpower),andthroughputinformation.TheACRdelivertheinformationcollectedbyACRtotheU-RASFlexibleV2,andtheU-RASFlexibleV2createsandstoresaleforeachperiod.ThresholdCrossAlert(TCA)ControlTheU-RASFlexibleV2denesunder/overthresholdforstatistics.WhenastatisticalvaluecollectedatBucketInterval(15,30,and60minutes)islowerthantheunderthreshold,itgeneratesanunderTCAalarm.Whenthevalueishigherthantheoverthreshold,itgeneratesanoverTCAalarm.ThealarmsarereportedtotheWSM.TCAcanenableordisabledetailsofeachstatisticalgroupandsetathresholdperseverity.IEEE802.3ahTheU-RASFlexibleV2providesIEEE802.3ahEthernetOAMforabackhaulinterface.AlthoughIEEE802.3ahOAMpertainsthePHYlayer,itislocatedintheMAClayersothatitcanbeappliedtoallIEEE802.3PHYs.Itcreatesorprocesses802.3ahOAMframesaccordingtothefunctionsdenedinthespecication.EthernetOAMcontinuouslymonitorstheconnectionbetweenlinksateachend,andalsomonitorsdiscovery,remoteloopback,anderrorpacketswhichdeliverimportantlinkeventssuchasDyingGasp.Italsoincludesalinkmonitoringfunctionwhichdeliverseventnoticationintheeventofthresholderrors,andavariableretrievalfunctionfor802.3ahstandardMIB.TheU-RASFlexibleV2supports802.3ahEthernetOAMpassivemodesuchasrespondingto802.3ahOAMwhichistriggeredinexternalactivemodeentitiesandloopbackmodeoperation,andsendingeventnotication.IntegrityCheckTheU-RASFlexibleV2proactivelycheckswhethersystemcongurationoroperationinformation(PLD)isincompliancewithoperatorcommandsduringsystemloadingoroperation,andalsocheckswhethersystemsettingsareOKandthereisnoproblemwithcallprocessing.IftheresultisnotOK,itsendsanalarmtotheoperator.Thatis,itcheckswhethersystemcongurationmeetstheminimumcongurationconditionsforcallprocessingorwhetheralloperationinformationconsistsofvalidvalueswithinanappropriaterange.Theresultisreportedtotheoperatortohelpwithcorrectionoferrors.©SAMSUNGElectronicsCo.,Ltd.2-11

CHAPTER2.OverviewofSystemOAMTrafcThrottlingTheU-RASFlexibleV2providesafunctionthatsuppressesOAMrelatedtrafcwhichcanoccurinthesystemdependingontheoperatorcommand.TheOAMrelatedtrafcincludesfaulttrapmessagesforalarmreportsandstatisticslesthatarecreatedperiodically.Inafaulttrap,theoperatorcanuseanalarminhibitioncommandtosuppressalarmgenerationforallorsomeofsystemfaulttraps.Thishelpscontrolalarmtrafc.Inastatisticsle,theoperatorcanusecommandsforstatisticscollectioncongurationtocontrolthesizeofstatisticslebydisablingcollectionfunctionsofeachstatisticsgroup.ThroughputTestTheU-RASFlexibleV2providesathroughputtestforthebackhaultotheACR.TheU-RASFlexibleV2supportsaserverandclientfunctionforthroughputtests.TheoperatorcansetuptargetIPaddresses,testduration,andbandwidthsforthroughputtests,andcheckthroughputandlossastestresults.However,asthethroughputtestaffectssystemperformanceandcallservices,itisrecommendednottoperformthetestduringin-service.SystemLogControlTheU-RASFlexibleV2providesalogandlogcontrolfunctionperapplication.Anapplicationlogcanbecreatedbyanoperatorcommandoritsdebuglevelcanbeset.Theoperatorcanusuallykeepthelogfunctiondisabled,andwhenthelogfunctionisnecessary,hecanchangethedebuglevel(V eryCalm,Calm,Normal,Detail,V eryDetail)toenableloggingandlogsavefunctions.However,enablinglogfunctionsformanyapplicationswhiletheU-RASFlexibleV2isrunningmayaffectthesystemperformance.DisablingZeroCodeSuppression(ZCS)TheU-RASFlexibleV2collectsstatisticsdataandgeneratesstatisticslesperiodically.TheWSMcollectsthesestatisticsles.Astatisticsleiscomposedoftheheaderusedtoindicateastatisticsgroupanditsdetailedindex(forexample,aspeciccarrier,sector,CPU,port,etc.)andthestatisticsdataforthatindex.Inastatisticsperiod,thestatisticsdataforaspecicindexcanbecomezeroinastatisticsleinthefollowingcases:•Whentheindexdoesnotactuallyexistintheconguration.•Whentheindexexistsinthecongurationbutitsstatisticsdatacollectedduringthatperiodiszero.Therefore,theDisablingZCSfunction,whichsetsthezerodataaginthesubindexheader,isprovidedtorecognizethetwocasesseparately.LineloopbacktestbetweentheDUandRRHTheU-RASFlexibleV2providestheloopbacktestfunctiontocheckwhethercommunicationisnormalonthebasebandI/QandC&MinterfacelinebetweentheDUandRRH.2-12ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.02.3SpecicationsCapacityThecapacityoftheU-RASFlexibleV2isasfollows:CategorySystemCapacityChannelBandwidth10MHzRFBandRRH-B4:2,496~2,690MHz(194MHz)MaximumNumberofCarriers/Sectors2Carrier/3Sector(6sucell)InterfacebetweenACRandU-RASFlexibleV2SelectoneofFastEthernetandGigabitEthernetFFTsize/Carrier/Sector1,024ChannelCardCapacity1Carrier/1SectorOutputAntennaPort-based–5W+5W/Carrier@10MHz–10W+10W/Carrier@10MHz,PowerBoostingInputPowerThetablebelowliststhepowerstandardfortheU-RASFlexibleV2.CategoryStandardSystemInputVoltagea)-48VDC(VoltageVariationRange:-40~-56VDC)a)EachoftheDUandRRHreceives-48VDCofpowerforitsoperation.UnitSizeandWeightThetablebelowliststhesizeandweightoftheU-RASFlexibleV2.CategoryStandardDU(W×D×H)432×396×200(17×15.59×7.87) Size[mm(in.)]RRH-B4(W×D×H)350×207.5×550(13.78×8.17×21.65)DU20(44.09)orless Weight[kg(lb.)]RRH-B4About23(50.71)EnvironmentalConditionThetablebelowliststheenvironmentalconditionsandrelatedstandardssuchasoperationaltemperatureandhumidity.•DU©SAMSUNGElectronicsCo.,Ltd.2-13

CHAPTER2.OverviewofSystemCategoryRangeTemperatureConditiona)0~50°C(32~122°F)HumidityConditiona)5~90%(Non-condensing),Theabsolutehumidityper1m3ofairshouldnotexceed30g.Altitude-60~1,800m(-197~6,000ft)VibrationGR-63-CORESec.4.4–Earthquake–OfceVibration–TransportationVibrationSoundPressureLevelLessthan65dBAmeasuredatpoints1.5m(5ft)abovetheoorand0.6m(2ft)allaround.EMIFCCTitle47Part15ClassAEN301389GR1089-CORE(Issue4)a)Thestandardsoftemperature/humidityconditionsarebasedonthevalueonthepositionwhereis400mm(1.3ft)awayfromthefrontoftheDUandintheheightof1.5m(5ft)onthebottom.•RRHCategoryRangeTemperatureConditiona)-40~50℃(-40~122℉)HumidityConditiona)5~100%(Condensing),Theabsolutehumidityper1m3ofairshouldnotexceed30g.Altitude-60~1,800m(-197~6,000ft)VibrationGR-487-CORESec.3.39–Transportationshock–Transportationvibration–Installationshock–Environmentallyinducedvibration–EarthquakeresistanceSoundPressureLevelLessthan65dBAmeasuredat1.5m(5ft)fromtheRRHinallhorizontaldirectionsataheightof1m(3ft)EMIFCCTitle47Part15ClassBEN301389G1089-CORE(Issue4)RFRegulationFCCTitle47Part27a)Thestandardsoftemperature/humidityconditionsarebasedonthevalueonthepositionwhereis400mm(1.3ft)awayfromthefrontoftheRRHandintheheightof1.5m(5ft)onthebottom.EnvironmentalAlarmThetablebelowliststheenvironmentalalarmprovidedintheU-RASFlexibleV2indefault.2-14ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescriptionTemperatureAlarmHighTemperature,LowTemperatureFanFailDUFanFailVoltageAlarmHighVoltage,LowVoltageGPSRSpecicationThetablebelowliststheGPSReceiver(GPSR)characteristicsofU-RASFlexibleV2.CategoryDescriptionReceivedSignalfromGPSGPSL1SignalAccuracy/Stability0.02ppmRFSpecicationThetablebelowliststheRFcharacteristicsoftheU-RASFlexibleV2.CategoryDescriptionTxOutputPower–10W@avgpowerpercarrier/sector–20W@avgpowerpercarrier/sector,powerboostingTxConstellationerrorInaccordancewiththe802.16estandardRXSensitivityInaccordancewiththe802.16estandard©SAMSUNGElectronicsCo.,Ltd.2-15

CHAPTER2.OverviewofSystem2.4InterfacebetweenSystemsInterfaceStructureTheU-RASFlexibleV2interfaceswithanotherRASandACRasshowninthegurebelow:Figure2.2StructureofU-RASFlexibleV2Interface•InterfacebetweenU-RASFlexibleV2andMSTheU-RASFlexibleV2interfaceswithanMSaccordingtotheIEEE802.16radioaccessstandardtoexchangethecontrolsignalandthesubscribertrafc.•InterfacebetweenU-RASFlexibleV2andACRTheinterfacebetweenanACRandtheU-RASFlexibleV2inthesameASNisR6anditsphysicalaccessmethodisGE/FE.TheR6istheinterfacebetweenACRandRASdenedinMobileWiMAXNWGandiscomposedofsignalingplane(IP/UDP/R6)andbearerplane(IP/GRE).•InterfacebetweenU-RASFlexibleV2andWSMTheinterfacebetweentheU-RASFlexibleV2andtheWSMcomplieswithSNMPv2cofIETFstandard,FTPandproprietarystandardofSamsunganditsphysicalaccessmethodisGE/FE.ProtocolStack•ProtocolStackbetweenNEsThegurebelowshowstheprotocolstackbetweenNEs.2-16ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Figure2.3ProtocolStackbetweenNEsTheU-RASFlexibleV2interworkswithMSsviaR1interfaceaccordingtoIEEE802.16standardandtheinterfacebetweentheU-RASFlexibleV2andACRisR6interface.TheR6signalinginterfaceisexecutedonUDP/IPandtheR6trafcinterfaceusestheGREtunnel.•ProtocolStackforOperationandMaintenanceFigure2.4ProtocolStackbetweenU-RASFlexibleV2andWSMTheU-RASFlexibleV2interworkswithWSMinUDP/IP-basedSNMPmethodtocarryouttheoperationandmaintenancefunctions.Inparticular,theU-RASFlexibleV2interworkswithWSMinTCP/IP-basedFTPmethodtocollectthestatisticaldataperiodically,initialize&restartthesystemanddownloadsoftware.PhysicalInterfaceOperationMethodTheU-RASFlexibleV2providesEthernetinterfaceasanASNinterfaceandcanselectthetypeofinterfacesdependingonthenetworkconguration.Atthistime,morethanonetype©SAMSUNGElectronicsCo.,Ltd.2-17

CHAPTER2.OverviewofSystemofinterfacescannotbeoperatedsimultaneously.ThenumberofinterfacescanbeoptionallymanageddependingonthecapacityandtherequiredbandwidthoftheU-RASFlexibleV2.Thetypesofinterfacesareasfollows:InterfaceTypeNumberofPortsperSystem100/1000Base-T(RJ-45)42Ethernet1000Base-X(SFP)100/1000Base-T(RJ-45)(Simultaneousoperation)2Ethernetinterfaceoperateseverallinksas802.3ad(static)-basedstaticlinkaggregation.Theoperationandmaintenanceinterface(interfacewithWSM)isoperatedinin-bandmethod,whichsharesthecommonusertrafcinterface.2-18ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionCHAPTER3.SystemStructure3.1HardwareStructureTheU-RASFlexibleV2hasaseparatestructureconsistingofaDUandRRHs.BecauseuptothreeRRHscanbeconnectedtoaDU,themaximum2Carrier/3Sector(6subcell)serviceispossible.DUTheboardsthatmakeuptheDUaremountedontheSMFS-F,whichisa19in.indoorshelf.TheSMFS-Fcanbemountedona19in.indoororoutdoorcommercialrack.•SamsungMobileWiMAXFlexibleShelfassembly-Frontmount(SMFS-F)–ShelfforDUofU-RASFlexibleV2–Mountingissupportedwhenmountedona19in.rack.Figure3.1DUConguration(SMFS-F)TheDUiscomposedofaDigitalMainBlock(DMB),DPM-FI,andFAN-FD48.•DMBTheDMBoperatesandmaintainstheU-RASFlexibleV2,enablestheU-RASFlexibleV2tointerfacewithACRandprovidesthecommunicationpathbetweenprocessors©SAMSUNGElectronicsCo.,Ltd.3-1

CHAPTER3.SystemStructureinthesystem.TheDMBcreatesthereferenceclock,providestheclocktothelowerhardwareblockandperformsthesignalprocessingfunctionforthesubscribersignal.TheDMBalsointerfaceswiththeRRHtosendandreceivedatatrafc,andreceivesandcontrolsalarmsforthelowerhardwareblocksormodules,includingtheRRH.•DPM-FITheDPM-FIreceivesDCpowerthroughaseparaterectieranddistributesittoeveryboardandmoduleontheDUshelf.TheoperatorcancontrolDCpowersupplybyturningthecircuitbreakeratthefrontoftheDPM-FIon/off.•FAN-FD48TheFAN-FD48iscomposedofasetoffourfansandmaintainstheinsidetemperatureoftheDUwithinanappropriaterangesothattheU-RASFlexibleV2canoperatenormally.TheFAN-FD48detectstheinsidetemperatureoftheDUusingabuilt-intemperaturesensorandsetsthespeedofthefaninaccordancewiththedetectedtemperature.RRH-B4TheRRH-B4isasingleunitthatcanbeinstalledonawallorpolewithoutanadditionalshelforrack.TheRRH-B4isauniedRFmoduleinterfacingremotelywiththeDUthroughanopticalcable.Itislocatedatthefrontendoftheantenna.Figure3.2RRH-B4CongurationOnadownlink,itconvertsthedatatrafcintheformof‘DigitalI/QandC&M’receivedfromtheMRA-FoftheDUintoRFsignalsandthensendsthemthroughanexternalantenna.Conversely,onanuplink,theRRH-B4convertstheRFsignalsreceivedthroughtheantennainto‘DigitalI/QandC&M’datatrafc,andthensendsthemtotheMRA-FoftheDU.TheRRH-B4alsoreceivesclockinformationfromtheDUthroughthe‘DigitalI/QandC&M’interface,andsends/receivesalarm/controlmessages.3-2ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0InternalCongurationofSystemBelowaretheinternalcongurationdiagramsoftheU-RASFlexibleV2.•2Carrier/3SectorMIMOFigure3.3InternalCongurationofSystem(MIMO,2Carrier/3Sector)©SAMSUNGElectronicsCo.,Ltd.3-3

CHAPTER3.SystemStructure•6SubcellMIMO(CarrierExpansionFunction)Figure3.4InternalCongurationofSystem(ExampleofMIMOand6Subcell)RectierThevendormustinstalltherectierseparately.Samsungcanprovideacommercialrectierattheserviceprovider’srequest.FortheRS-485interfaceservicebetweentheU-RASFlexibleV2andrectier,therectiermustmeettheinterfaceprotocolspeciedbySamsung.Forotheroperations,theU-RASFlexibleV2cancommunicatewiththerectierusingUserDenedAlarms(UDA).3.1.1DMBTheDigitalMainBlock(DMB)supportstheoperationandmaintenanceoftheU-RASFlexibleV2,interfacingbetweentheU-RASFlexibleV2andACR,andinterfacingbetweentheDUandRRH.Italsocollectsandcontrolsalarmsforthelowerboardsandmodules,3-4ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0includingtheinter-processorcommunicationpathsandRRHinthesystem.TheDMBalsogeneratesandsuppliesclockstothelowerhardwareblocks,includingtheRRH,andprocesseschannelsforsubscribersignals.WhentheU-RASFlexibleV2sendssignalstoanMS,theDMBperformstheOFDMAsignalprocessingonthetrafcsignalsreceivedfromtheACR,convertsthemintoopticalsignalsusingthe‘DigitalI/QandC&M’converter,andthensendsthemtotheremoteRRH.Conversely,whentheU-RASFlexibleV2receivessignalsfromanMS,theDMBreceives‘DigitalI/QandC&M’signalsfromtheremoteRRH,performstheOFDMAsignalprocessingonthem,andthensendsthemtotheACR.MainFunctions•Creationanddistributionofthereferenceclock•FastEthernet/GigabitEthernetinterfacewithACR•Faultdiagnosisandalarmcollectionandcontrol•Alarmreport•Channelresourcemanagement•OFDMAsignalprocessing•AutomaticGainControl(AGC)forthereceivedRFsignalandReceivedSignalStrengthIndicator(RSSI)support•SupportingopticalinterfacingwiththeRRHandloopbacktestTheDMBisconguredasshowninthegurebelow:Figure3.5DMBCongurationBoardNameQuantity(Sheet)FunctionMBB-F1MobileWiMAXbasestationBackplaneBoard-Flexible–DMBbackboard–Signalroutingfunctionfortrafc,controlsignal,clock,power,etc.MMA-G1MobileWiMAXbasestationMaincontrolboardAssembly-General–Mainsystemprocessor–Callprocessing,resourceallocationandOAM–ReceptionoftheGPSsignalandcreationandsupplyoftheclock–Alarmcollectionandreporttotheupper–SupportsFE/GEinterfacewithACR–Non-volatilememorysupport©SAMSUNGElectronicsCo.,Ltd.3-5

CHAPTER3.SystemStructureBoardNameQuantity(Sheet)FunctionMRA-FMax.6MobileWiMAXbasestationRASboardAssembly-Flexible–Subscriberdatatrafcprocessing–OFDMAProcessing–1Carrier/1SectorMIMO–‘DigitalI/QandC&M’dataformatting–SupportingopticalinterfacingwiththeRRH(E/O,O/Econversion)–SupportingloopbacktestsbetweentheDUandtheRRHMEI-B1MobileWiMAXbasestationExternalInterfaceboardassembly-Basic–ProvidesUserDenedAlarm(UDA)–Alarmmonitoringincludingfanalarm/hightemperatureMobileWiMAXbasestationMaincontrolboardAssembly-General(MMA-G)TheMMA-GprovidesamainprocessorfunctionoftheU-RASFlexibleV2,GPSsignalreceivingandclockdistribution,andnetworkinterfacefunctions.•MainProcessorFunctionTheMMA-GistheboardthatcarriesouttheroleasthehighestlayerintheU-RASFlexibleV2andisequippedwiththemainprocessor.ThemainprocessoroftheMMA-Gperformsthefunctions,suchascommunicationpathsettingbetweenMSandACR,EthernetswitchfunctionintheU-RASFlexibleV2,systemoperationandmaintenanceandTDDsignalcontrol.TheMMA-GmanagesthestatusofallhardwareandsoftwareintheU-RASFlexibleV2andreportseachstatusinformationtoWSMviaACR.Inaddition,theMMA-GallocatesandmanagestheresourcesoftheU-RASFlexibleV2andtheconnectionoftheMMA-GandaPCfortheWeb-EMTenablestomaintaintheU-RASFlexibleV2withnointerworkingwithACR.•GPSSignalReceptionandClockDistributionFunctionTheMMA-GisequippedwithUniversalCoreClockModule(UCCM)forGPSsignalreception.TheUCCMenableseachblockoftheU-RASFlexibleV2tobeoperatedinthesynchronizedclocksystem.TheUCCMmountedontheMMA-Gcreatesthesystemclocks[56MHz,12.5Hz(80msec),PP2S,analog10MHz,61.44MHz]byusingthereferencesignalreceivedfromaGPSanddistributesthemtothehardwareblocksinthesystem.TheseclocksareusedtomaintaintheinternalsynchronizationoftheU-RASFlexibleV2andoperatethesystem.IfnoGPSsignalisreceivedduetoafaultwhensystemoperation,theUCCMcarriesouttheholdoverfunctiontoprovidethenormalclockforacertaintimeasprovidedintheexistingsystem.•NetworkInterfaceFunctionTheMMA-GinterfaceswithanACRinGigabitEthernetorFastEthernetmethod.TheMMA-GcanprovidemaximumtwoGigabitEthernetportsorfourFastEthernetportsperboard,andsupportthelinkaggregationredundancymethod.3-6ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0TheMMA-GcanbedividedasfollowsdependingontheinterfacetypesprovidedbyMMA-G,andserviceprovidercanchoosetheinterfacetype.–MMA-GC:Four100/1000Base-TCopperports–MMA-GM:Two100/1000Base-Tportsandtwo1000Base-XSmallFormfactorPluggable(SFP)portsMobileWiMAXbasestationRASboardAssembly-Flexible(MRA-F)TheMRA-FprovidesamodemfunctionoftheU-RASFlexibleV2andinterfacingwiththeRRH.•ModemFunctionTheMRA-FisequippedwiththemodemsupportingIEEE802.16MobileWiMAXstandardphysicallayer(PHY)andthemodemperformstheOFDMAsignalprocessingfunctionbythecontroloftheMMA-G.TheMRA-FmodulatesthepacketdatareceivedthroughtheMMA-G,convertsthemodulatedsignalintothe‘DigitalI/QandC&M’formatandtransmitstotheRRH.Inthecontrary,theMRA-FdemodulatedthedatareceivedfromtheRRHafterperformingtheAGCfunction,convertsthedataintotheformatdenedintheIEEE802.16MobileWiMAXphysicallayerstandardandthentransmitstheconverteddatatotheMMA-GviaEthernet.•OpticalinterfacingwiththeRRHandLoopbackTestAstheMRA-Fcontainsabuilt-inElectricaltoOptic(E/O)conversiondeviceandanOptictoElectrical(O/E)conversiondevice,itcansendandreceive‘DigitalI/QandC&M’signalsoftheopticalsignalsbetweendistantRRHs.TheMRA-FcanalsorunloopbackteststocheckwhethertheinterfacebetweentheMRA-FandRRHsisingoodconditionforpropercommunication.TheoperatorcanruntheloopbacktestifnecessaryusingtheWSMcommand.MobileWiMAXbasestationExternalInterfaceboardassembly-Basic(MEI-B)TheMEI-Bprovidespathsforalarminformationthatisgeneratedfromexternaldevices(additionalequipmentprovidedbytheoperator).TheMEI-BalsocollectsalarmsforthefanmountedontheDUtoreporttotheMMA-G.3.1.2RRHTheRRHisaremoteRFdevicethatsupportsMobileWiMAXservices.ItisinstalledataremotelocationfromtheDU.ItperformsthefunctionthatconnectsmobileWiMAXcallstoanMS,asdenedinthe802.16d/estandard.MainFunctionsBelowarethemajorfunctionsoftheRRH.•High-poweramplicationofRFtransmissionsignal•InterfacesopticallywiththeMRA-FoftheDUusing‘DigitalI/QandC&M’andcarriesoutinterfacingfortrafc,alarms,controlsignals,andclockinformation.•Upconversion/downconversionoffrequency©SAMSUNGElectronicsCo.,Ltd.3-7

CHAPTER3.SystemStructure•GaincontrolofRFRx/Txsignal•Rx/TxRFsignalfrom/toanantenna•Suppressionofout-of-bandspuriouswaveemittedfromRFRx/Txsignal•Lownoiseamplicationofband-passlteredRFRxsignal(LowNoiseAmplier,LNA)•TDDswitchingfunctionforTx/Rxpath•Includesthelterpartconnectedtotheantenna•RemoteElectricalTilting(RET)function(option)RETTheRETisanoptionalfunctionthattheserviceprovidercanselect.Referto’RET’.RRH-B4DescriptionTheRRH-B4isaRFmoduleoftheU-RASFlexibleV2,andsupports4Tx/4RxRFpaths.CategoryEACapacityRFPathAntennaOutputRRH-B4Max.34Carrier/1Sector(2Carrierwithin40MHz+2Carrierwithin40MHr)MIMO(2Tx/2RxSplit)5W+5W/Carrier10W+10W/Carrier@PowerBoostingatantennaportseachTheRRH-B4isanRRH-B4thatintegratesthetransceiver,poweramplier,TDDswitch,andltersinasinglemodule.Inthecaseofdownlinksignals,theRRH-B4convertsbasebandsignalsreceivedthroughthe‘DigitalI/QandC&M’interfacefromtheMRA-FintoOptictoElectrical(O/E).TheconvertedsignalsundergoDigitaltoAnalogConversion(DAC)tobeconvertedtoanalogRFsignals,andthenareampliedthroughthecurrentamplicationprocess.Ampliedsignalsaresenttotheantennaviathelterpart.Inthecaseofuplinksignals,thefrequencyofthesignalsreceivedthroughtheRRH-B4lterpartisloweredbyLowNoiseAmplier(LNA).TheAnalogtoDigitalConversion(ADC)processconvertsthesesignalstobasebandsignals.Thebasebandsignalsareinthe‘DigitalI/QandC&M’format,andundergoE/OconversiontobesenttotheMRA-F.RRH-B4has4Tx/4RxtransmitandreceivepathsandcanbeoperatedinSplitModedividedbythe2Tx/2Rx.InSplitMode,multiplecarriersinthesametransmissionpathmustbewithinthe40MHzbandwidthonthefrequency.Butcarriersinthedifferent2Tx/2Rxhasnorestrictionforconguringoperatingfrequency.3-8ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Figure3.62T2RSplitModeofRRH-B4NetworkCongurationUsingtheRRH-B4TheRRH-B4cannotoperateonitsown,butoperatesbybeinglinkedtotheDU.TheRRH-B4ishighlyexibleinitsinstallation,andhelpswithsettingupanetworkinavarietyofcongurationsdependingonthelocationandoperationmethodasshownbelow.©SAMSUNGElectronicsCo.,Ltd.3-9

CHAPTER3.SystemStructureFigure3.7SectorCongurationExampleUsingRRH-B4Figure3.8OmniCongurationExampleUsingRRH-B43-10ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0ConditionsforOmniCongurationUsingRRH-B4–MultiplecellsconnectedtoasingleDUmustbelongtoasinglepaginggroup.–Omnicellsmustbeindependent,andnotbeadjacenttoeachother.Figure3.96SubcellCongurationExampleUsingRRH-B4Conditionsfor2T2RSplitModeUptofourWiMAXcanbeoperatedbyoneRRH-B4.3.1.3DPM-FITheDPM-FIismountedtotherightoftheU-RASFlexibleV2DMB.Figure3.10DPM-FIConguration©SAMSUNGElectronicsCo.,Ltd.3-11

CHAPTER3.SystemStructureBoardNameQuantityFunctionDPM-FI1DCPowerModule-FlexibleIndoorReceivesDCpowerthrougharectieranddistributesittoeveryblockintheDMBEveryboardoftheDMBandthefan(FAN-FD48)oftheDUintheU-RASFlexibleV2receivepowerthroughtheMBB-F.EachboardofDMBreceives-48VDCandconvertsittotherequiredvoltage.ThefollowingpowerdiagramshowsDUinputpowerthatissuppliedtoDPM-FIandconnectionpointstoeachboard.Figure3.11PowerStructureofU-RASFlexibleV2RRHPowerSupplyIftheRRHisdistantfromtheDU,itissuppliedwithseparatepower(e.g.,rectier)of-48VDC(-40~-56VDC).3-12ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.03.1.4CoolingStructureDUTheDUoftheU-RASFlexibleV2maintainstheinsidetemperatureoftheshelfatanappropriaterangeusingasetofsystemcoolingfans(FAN-FD48),sothatthesystemcanoperatenormallywhentheoutsidetemperatureoftheDUshelfchanges.Figure3.12FanCongurationBoardNameQuantityFunctionFAN-FD481FANModule-FlexibleDigitalunit-48VDCDUcoolingfanThecoolingstructureoftheDUintheU-RASFlexibleV2isasfollows.Figure3.13CoolingStructureoftheDUTheFAN-FD48hasabuilt-intemperaturesensor.RRHTheRRHoftheU-RASFlexibleV2isdesignedwithanaturalcoolingsystemthatsupportsanoutdoorenvironmentwithnoadditionalfanorheater.3.1.5ExternalInterfaceStructureThelayoutofU-RASFlexibleV2interfacesisasshowninthegurebelow:©SAMSUNGElectronicsCo.,Ltd.3-13

CHAPTER3.SystemStructureMIMOSupportTheU-RASFlexibleV2supportsMIMOandprovidestheadministratorwiththefollowingexternalinterface.Figure3.14ExternalInterfacesofU-RASFlexibleV2(MIMO)•ExternalInterfacesofDUCategoryInterfaceTypePortNo.ConnectorType21000Base-X:SFP(LC) Simultaneousoperationof1000Base-Xand100/1000Base-TX2100/1000Base-Tx:RJ-45Backhaul100/1000Base-TX4RJ-45UDE10/100Base-Tx1RJ-45GPSAntennaAnalogRF1SMAUDAOpen/Short168PinChampConnectorPowerDCpower(-48VDC)1Molex42816-02123-14ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryInterfaceTypePortNo.ConnectorTypeRectierInterfaceRS-4851RJ-45Analog10MHzAnalog10MHz(RF)1SMARRHInterfaceDigitalI/QandC&MMax.6SFP(Singlemode)Console100Base-Tx1RJ-45MMA-GDebugRS-2322USBMRA-FDebugRS-2321USBTDDTDDclock1SMA•ExternalInterfaceofRRH-B4CategoryInterfaceTypePortNo.ConnectorTypeAntennaInterfaceAnalogRF(MainTrafc)4DIN(female)DUinterfaceDigitalI/QandC&M8SFP(singlemode;LC)PowerDCpower(-48VDC)1Grandtype(2C,O-RingLUG)RETAISG2.0(Power/Control)1SU-20SP-8PTDDsignaloutput1MCX DebugwindowDebug1USB©SAMSUNGElectronicsCo.,Ltd.3-15

CHAPTER3.SystemStructure3.2SoftwareStructure3.2.1SoftwareBasicStructureThecomponentsofthesystemsoftwareareshownbelow:OperatingSystem(OS),DeviceDriver(DD),Middleware(MW),NetworkProcessorSoftware(NPS),IPRoutingSoftware(IPRS),andapplication.TheapplicationisdividedbyCallControl(CC)blockforthecallprocessingandtheOAMblockforoperationandmaintenanceofthesystem.Figure3.15SoftwareStructureofSystemOperatingSystem(OS)OSinitializesandcontrolsthehardwaredevice,andrunsthesoftwareoperationinthehardware.Tooperatethesoftware,OSusestheembeddedLinuxOS,andmanagesthedualsoftwareprocesses.Then,OSprovidesvariousfunctionsefcientlywithlimitedresources.Middleware(MW)MWhelpsthesmoothoperationbetweenOSandapplicationundervarioustypesofhardwareenvironment,andtoachievethis,MWprovidesvariousservices:messagedeliveryservicebetweenapplications,eventnoticationservice,debuggingutilityservices.DeviceDriver(DD)DDmanagesthenormaloperationofapplicationsthatOSdoesnotcontrolinthesystem.DDprovidestheAPIfortheuserprocessortosetup/control/detectthehardwaredevice.Also,DDconrmsthedevicecongurationbyreceivingthecongurationdatafromtheupperuserprocessor,andalsoprovidesthefunctionsofregistermanipulationfordeviceoperation,devicediagnosis,statisticsandstatusmanagement.NetworkProcessorSoftware(NPS)NPSmanagestheinnatefunctionsofNetworkProcessor(NP)thatmainlyprocessesthepackets,anditconnectstheupperprocessorandNPinBoardProcessor(BP),andprovidesthefunctionsofNPmessageprocessing,NPstatisticsdatacollectionandreport.3-16ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0IPRoutingSoftware(IPRS)IPRSexecutestheIProutingprotocolfunction.IPRScollectsandmanagesthesystemcongurationandstatusdatanecessaryforIProutingoperation,andbasedonthedata,itgeneratestheroutingtableviatheroutingprotocol,andmakespacketforwardingpossible.CallControl(CC)CCisasoftwaresubsystemthatprocessesthecallsinthesystem,andCCinterfaceswithMSandACR.CCsupportsdataexchangefunctiontosupportwirelessdataservicesuchastheMACscheduling,airlinkcontrol,ARQprocessingandIEEE802.16messageprocessing.OperationAndMaintenance(OAM)TheOAMprovidestheinterface(SNMPv2c,FTP,HTTPs,SSH)ofwhichisstandardizedtointerworkwiththeuppermanagementsystemsuchastheWSM,theWeb-EMTandconsoleterminalbasedontheIMISH.Inaddition,thisperformsthefunctionsofinitializingandrestartingthesystem,collectingthestatisticsforprocessingthecallandvariousperformancedata,managingthesystemcongurationandresources,managingthestatusofthesoftwareresourcesandthehardwareresources,managingthefailureandperformingthediagnosticsfortheoperationandthemanagementofthesystem.3.2.2CCBlockTheCallControl(CC)blockcariesouttheresourcemanagementfunctionofthesystemandtheBSfunctionofASNProle-CdenedinNWGofMobileWiMAXforum.TheCCblockconsistsofRASResourceController(RRC),RASServiceController(RSC)andRASTrafcController(RTC)sub-blocksandthefunctionsofeachsub-blockareasfollow:Figure3.16CCBlockStructureRRCastheresourcemanagerofthesystemexchangesthestatusinformationwithallblocksandassignsappropriatesoftwareresourcestoaservicewhenitreceivesthenecessaryservicerequestfromRAS/ACR.RSCprocessestheMACsignalingviaR1interfaceandinterworkswithACRviaR6interface.RSCperformstheCallAdmissionControl(CAC)intheservicecreationprocess©SAMSUNGElectronicsCo.,Ltd.3-17

CHAPTER3.SystemStructureandrequeststhetrafcchannelsetuptoRTC.Inaddition,RSCtransferstheinformationontheinternalcontrolmessagetothemodemblockinthesystem.RTCfragmentstheuserdatareceivedfromACRviatheR6interfaceinMACPDUformatandtransfersthedatatothemodemblockorre-assemblestheMACPDUreceivedfromanMSviatheR1interfaceandtransmitstoACR.Inaddition,theRTCinterworkswiththeRSCblockcontrollingtheRASsignalandperformsthecallsetup/releaseprocedure.RRCRASResourceController(RRC)isinchargeoftheresourcemanagementofthesystemandisactivatedontheMMA.TheRRCinterfaceswithACRoutsidethesystemandtheRSCandOAMblocksinsidethesystem.MainfunctionsofRRCareasfollows:•ACRKeepAlive•RSCKeepAlive•InterCarrierLoadBalancing•PagingMessageTransmission•SystemResourceManagementRSCTheRASServiceController(RSC)isinchargeofthesignaling-concentratedserviceinthesystem.Asforthesystemoutside,theRSCperformsthemessageexchangewithACRviatheMobileWiMAXstandardR6interface.Asforthesysteminside,RSCinterworkswiththeRTCthatisinchargeoftrafcdataandtransmitstheinformationontheinternalcontrolmessagetothemodemblock.TheRSCperformstheMACmessageexchangedescribedinIEEE802.16withanMSandcarriesoutthecallsetupprocedurebyinterworkingwiththeRRCviathesysteminternalmessage.TheRSCisactivatedonMRA.MainfunctionsofRSCareasfollows:•CIDCreationandRelease•MACManagementMessageProcessing•R6InterfaceMessageProcessing•Handoverprocessing•SleepModeSupportforPowerReduction•CollectionofV ariousStatistics•PagingRelayFunctionforMSRTCTheRASTrafcController(RTC)istheblocktoprocessthetrafcofthesystem.TheRTCistheblockpertainingtothebearerplaneandislocatedasthekernelmoduleformatofthecorrespondingCPU.TheRTCperformstheR6interfaceunderIEEE802.16standardandenablestothemodemblocktoperformtheR1interfacenormally.TheRTCfragmentstheuserdatareceivedfromACRviatheR6interfaceinMACPDUformatandtransfersthedatatothemodemblockorre-assemblestheMACPDUreceivedfromanMSviatheR1interfaceandtransmitstoACR.3-18ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Inaddition,theRTCinterworkswiththeRTCblockcontrollingtheRASsignalandperformsthecallsetup/releaseprocedure.ThisprocessiscarriedoutviathememoryinterfaceintheRAScard(MRA).TheRTCcommunicateswiththemodemblockviathePCIinterface.TheRTCisactivatedonMRAanditsmainfunctionsareasfollows:•ARQfunction:ReceivestheARQfeedbackmessagefromanMSandprocessesthemessage.•AnalyzesandprocessestheRSCcontrolmessageandperformsthequeuemanagement.•Performsthetrafcinterfacewiththemodemblock.•PerformstheschedulingfunctionforeachQoSclass•DataTrafcProcessingFunctionRTCprovidesthedatapathbetweenACRandthesystemviatheR6datapath(GREtunnel).•TrafcControlFunctionforHandoverInhandover,RTCperformsthedatasynchronizationfunctionbetweenservingRAS/ACRandtargetRAS/ACR.3.2.3OAMBlockOperationAndMaintenance(OAM)blockmanagestheoperationandmaintenanceofthesystem,anditisdividedasthethreeshownbelow:Figure3.17OAMSoftwareStructureThefollowinginterfacestructurediagramshowsthecommunicationbetweenOAMblocks.MainOAMandEMIarerunningontheMMAthatsupportmasterOAM.BoardOAMisrunningontheremaininglowerprocessorboard.©SAMSUNGElectronicsCo.,Ltd.3-19

CHAPTER3.SystemStructureFigure3.18InterfacebetweenOAMBlocksTheEMIcarriesoutSNMPagentandwebserverfunction,andprovidestheOAMinterfacebetweenthemanagementsystem(WSM,Web-EMTandCLITerminal)andthesystembyprovidingtheIMISH.Then,toaccessthesystemdirectlyviatheWeb-EMTortheconsoleterminal,theprocessoftheoperatorauthenticationandtheauthorityallowanceviatheWebEMTorPluggableAuthenticationModule(PAM)blockshouldbedone.TheMainOAMislocatedinthemainprocessor.TheMainOAMcommunicateswiththeuppermanagementsystembyinterworkingwiththeEMIblockanddistributestheProgrammableLoadingData(PLD)tothelowerprocessorsbymanagingthesystemcongurationastheformatofthePLD.Inaddition,theMainOAMperformsandmanagestheroleoftheImageServer(IS)andtheRegistrationServer(RS),collectsandsavesthestatisticsdataandthefailureinformation,andreportsthemtotheuppermanagementsystem.TheBoardOAMislocatedinthelowerprocessor.TheBoardOAMcollectsthefailureandthestatisticsdataofeachboard,reportsthemtotheMainOAMandmonitorsthesoftwareprocessofeachboard.Functionaldetailsofeachblockareasfollows.SNMPDSNMPDaemon(SNMPD)playstheSNMPagentroletosupportthestandardSNMP(SNMPv2c)andaninterfacerolefortheuppermanagementsystem(WSM)andinterworkswithinternalsubagent.WhilereceivingrequestsonthestandardMIBobjectfromWSMareprocessedbySNMPDitself,ittransmitsrequestsontheprivateMIBobjecttosubagentinordertobehandledproperly.3-20ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0MainFunctionsareasfollows:•StandardMIBprocessingIftherequestforthestandardMIBobjectsuchasMIB-IIetc.isreceived,theSNMPDprocessesitdirectlyandtransmitstheresponse.•PrivateMIBprocessingIftherequestforthePrivateMIBobjectisreceived,itisnotprocesseddirectlybytheSNMPD,butitistransmittedtothecorrespondinginternalsubagent,andthentheresponseistransmittedfromthesubagentanditistransmittedtothemanager.SNMPDisimplementedontheMMA.OAGSCommonSNMPAgentSubagent(OAGS)playstheSNMPsubagentroletosupportthestandardSNMP .Also,throughmasteragent(SNMPD)OAGSplaysaninterfacerolefortheuppermanagementsystemforthecommandinquiryandchangeofACRtobeoperatedthroughtheget/get-next/get-bulk/set/trapcommanddenedbySNMP.MainFunctionsareasfollows:•ProvidingprivateMIB–ProvideprivateMIBtothemanagementsystem.–GeneratethemessagedatalenecessaryfortheinterfacefunctionbetweenOAMblocks.•SNMPcommandprocessingProcessthecommandreceivedfromthemanagementsystemandtransmitthecorrespondingresultviatheSNMPD.•NoticationfunctionSendtheSNMPtraptomasteragent(SNMPD)wheneverthereareneedstoinformthechangeorthealarmofthesystemdatatotheuppermanagementsystem.OAGSisimplementedontheMMA.WebEMTTheWeb-basedElementMaintenanceTerminal(WebEMT)istheblocktointerfacewiththeWebclientoftheconsoleterminalwhichusestheWebbrowser,andperformstheroleoftheWebserver.BothWeb-EMTandthesystemsupporttheHTTPcommunicationsbasedontheSecureSocketsLayer(SSL).MainFunctionsareasfollows:•Webserverfunction–HTTPserverforthemanagementusingWeb-EMT–ReceivehtmlrequestsanddisplayHTMLpages•OAMblockinterface–ProcesscommandsfromWeb-EMTinteroperatingwithotherOAMblocks–UsermanagementviaOAMAAAserverWebEMTisimplementedontheMMA.©SAMSUNGElectronicsCo.,Ltd.3-21

CHAPTER3.SystemStructureCLIMTheCommandLineInterfaceManagement(CLIM)istheblocktointerfacewiththeIMISH,whenitisconnectedtotheconsoleterminalviatheSecureShell(SSH)method.TheCLIMprocessesthereceivedcommandviatheIMISHanddisplaysthecorrespondingresult.MainFunctionsareasfollows:•IMISHcommandprocessing–Setup/change/inquiryofinterfaceandroutingfunctions–Setup/change/inquiryofthesystemoperation&maintenancePAMThePluggableAuthenticationModule(PAM)receivestheaccountandthepasswordoftheoperatorwhousestheconsoleterminal(IMISHandWeb-EMT)whenloggingin,thusitperformtheoperatorauthenticationandtheprocessofallowingtheauthority.MainFunctionsareasfollows:•Operator’saccountmanagementandauthenticationThefunctionofmanagingandauthenticatingtheaccountoftheoperatorwhousestheconsoleterminal(IMISHandWeb-EMT)isperformed.•Operator’sauthoritymanagementThefunctionofallowingtheauthorityforallthecommandswhichtheoperatorcanperformisperformed.•PasswordmanagementManagementfunctionssuchascreatingtheoperator’spassword,savingandupdatingtheencryptionareperformed.PAMisimplementedontheMMA.UFMUniversalFaultManagement(UFM)managestheACRfaultsandthestatusofsoftwareandhardware.UFMinformsthedetectedfailurestotheuppermanagementsystembythelteringfunction,andappliestheseveritychangesandthethresholdtothefaultmanagementsystem.Inparticular,theUFMreceivesToDfromaGlobalPositioningSystem(GPS)signalreceiver,distributesthereceivedToDtoCCsoftwareforcallprocessing,andmanagesfaultsconcernedwiththeToD.TheUFMisimplementedonMMAandalllowerboards.MainFunctionsareasfollows:•FailureManagement–Hardwareandsoftwarefailuremanagementbyinterruptandpolling–Whenthefailureisdetected,itisreportedtothemanagementsystemandtherelatedblock.•StatusManagement–Statusmanagementforthecomponents–Whenthestatusinformationoftheresourceischanged,itisreportedtothemanagementsystemandtherelatedblock.3-22ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0•Failurelteringandinhibition–Thelteringfunctionisappliedtomanykindsoftheoccurredfailure,andonlythefailureoftheoriginalreasonisreported.–Functionofinhibitingreportingaspecickindoffailureoraspecicsystemaccordingtotheoperator’srequest•InquiringandchangingthefailurecongurationinformationInquiringandchangingtheparameterssuchasthefailureseverityandthethresholdforthegeneration•FailureauditAuditingthefailureisperformedwheninitializingandrestartingthesystemandwhentheoperatorrequeststominimizetheinconsistencyofthefailureinformationbetweenthesystemandtheuppermanagementsystem.•FailurehistoryinformationmanagementManagementandsavingthefailurehistoryandperiodicallysavingthefailureinformationtotheownno-volatilestorage•CallfaultreportingIncaseofthecallfault,therelatedinformation(callstatus,errorcode,MSinformation,etc.)iscollectedandreportedtothemanagementsystem.•DDInterfaceTheinterfacebetweenDDandapplicationsisprovidedforstatisticsandstatusmanagementofdevices.LoaderLoadermanagestheentireprocessfromthestartofOStothepreviousstepofULMrunning(pre-loading).Afterthat,ifULMisactuatedaftertheinitializationscriptisexecutedandtheregistrationandloadingfunctionisperformed,theloadermonitorstheULMblock.MainFunctionsareasfollows:•SystemtimesettingBeforeNTP-basedsynchronization,thesystemtimeissetbyreceivingtheTimeofDate(ToD)fromaGPSreceiver.•systemregistrationandloading–RegistrationofthesystemtotheRegistrationServer(RS)–Determinationoftheloadingmethod•Loadingviatheownnon-volatilestorage•Loadingviatheconsoleport(atthistime,omittingtheregistrationofthesystemtotheRS)•LoadingviatheremoteIS•Loadingasthelatestversionviatheversioncomparison•BackingupandrestoringthesoftwareimageandthePLDLoadersavesthesoftwareimageandthePLDofthelatestversioninitsownnonvolatilestorageandrestoresitasthecorrespondinginformationwhenrequired.(IncaseofPLD,back-upbyoperator’scommand)•ULMmonitoring©SAMSUNGElectronicsCo.,Ltd.3-23

CHAPTER3.SystemStructureLoadermonitorswhethertheULMblockoperatesnormallyandifitisabnormal,thisrestartsit.LoaderisimplementedonMMAandalllowerboards.ULMUniversalLoadingManagement(ULM)downloadsandexecutesthepackagesthatareidentiedinthelelistdownloadedbyloaderduringpre-loadingprocess.Also,ULMmonitorstheexecutedsoftwareandprovidestherunningsoftwareinformation,andsupportstherestartandthesoftwareupgradebythecommand.Inaddition,intheinitializationstage,ULMsetsthesystemtimebyusingtheTimeofDateinformationobtainedfromaGPSreceiverandperiodicallyperformsthesynchronizationwiththeNTPserverbyactuatingasanNTPclientaftertheloadingiscompleted.MainFunctionsareasfollows:•Systeminitializationandreset–Systemresetbycommand–ActasinternalRS&ISoflowerboard•Softwaremanagement–Monitortheoperationofsoftwareblockandrestartthesoftwareblockinabnormalstate–Softwarerestartbycommand–Provideinformationonsoftwareblockandthestatus•InventoryManagement–ULMprovidestheinformationsuchasthesoftwareversionforthecomponents,thePBAID,thePBAversionandtheserialnumber,etc.–Functionofreportingtheinventoryinformationwhenperformingtheinitialization,addingandextendingthecomponents•OnlineupgradeandversionmanagementforthesoftwareULMprovidesthefunctionsofupdatingthesoftwareandthermware,upgradingthepackageandmanagingtheversion.•SystemtimeinformationsynchronizationSynchronizesystemtimeinformationwithNTPserverasaNTPclientandtransmitthetimeinformationtothelowerboards•TimeZonesetupSetupTimeZoneandDaylightSavingTime(DST)•MortemtimeupdateSetupmortemtimeaftersystemtimeinformationsynchronizationULMisimplementedonMMAandalllowerboards.OPMCommonPerformanceManagement(OPM)collectsandprovidestheperformancedatafortheuppermanagementsystemoperatortoknowthesystemperformance.TheOPMcollectstheeventgeneratedduringthesystemoperationandtheperformancedataandtransmitsthemtothemanagementsystem.ThecollectioncycleofthestatisticsdataoftheactualOPMcanbesetas15minutes,30minutes,60minutes,andiftheentirestatistics3-24ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0leofthebinaryformatiscreatedevery15minutes,themanagementsystemcollectsitperiodicallyviatheFTP .MainFunctionsareasfollows:•RecordandcollectstatisticsdataRecordstatisticsdatatothememoryandgeneratethestatisticslebyregularlycollectingdatapereachboard•SavethestatisticsdataSavethestatisticsdataofeachboardinitsownnonvolatilestorageduringuptoeighthours•InquireandchangethestatisticscongurationinformationInquireandchangethecollectioncycle(BI)andthethresholdofthestatisticsdata•ThresholdCrossAlert(TCA)GeneratetheTCA(Critical,Major,Minor)accordingtothedenedthresholdineverycollectioncycleandreportittotheUFM•MonitorthestatisticsinrealtimeProvidethereal-timemonitoringfunctionforthespecicstatisticsitemdesignatedbytheoperatorOPMisimplementedonMMAandalllowerboards.OSSMCommonSubscriptionServiceManagement(OSSM)distributesthePLDdatanecessaryforthesoftwareblocks,andreportsthedatachangedtothecorrespondingsoftwareblockifPLDdataarechanged.Also,itsupportsthefunctiontomaintaintheconsistencyofPLDdatathatarescatteredinthesystem.MainFunctionsareasfollows:•PLDdistributionOSSMloadsPLDtothesharedmemoryforsoftwareblockinordertoaccessPLD•PLDchangereportReportthechangesofPLDtothecorrespondingsoftwareblock•PLDauditMaintaintheconsistencyofPLDswhicharedistributedinthesystem(betweenmainboardandlowerboards)OSSMisimplementedontheMMAandalllowerboards.OER/OEVTheCommonEventRouter(OER)/CommonEventViewer(OEV)managestheeventhistoryasthetextformat.TheOER/OEVtransmitstheinformationonalltheeventsreceivedfromtheOAMapplicationstotherelatedagent(OAGS,WebEMT),andcreatesandsavesthehistoryleofthedaily/hourlyevents,anddisplaysthelogcontentsontheoperatorwindow(IMISH)inrealtime.MainFunctionsareasfollows:•EventtransmissionOER/OEVtransmitstheinformationonthegeneratedeventtotheOAGSortheWebEMTblock,thusitenablestoreportittothemanagementsystem.©SAMSUNGElectronicsCo.,Ltd.3-25

CHAPTER3.SystemStructure•CreatingandsavingtheeventhistoryleOER/OEVcreatesandsavesthedaily/hourlyeventhistoryleinitsownnonvolatilestorageasthe1Mbytemaximumsize.•EventdisplayOER/OEVdisplaystheeventgeneratedinthesystemontheoperatorwindow(IMISH)inrealtime.OER/OEVisimplementedontheMMA.OCMCommonCongurationManagement(OCM)managesthesystemcongurationandparameterwithPLD,anditprovidesthedatathatarenecessaryforthesoftwareblocks.OthersoftwareblockscanapproachPLDbytheinternalsubscriptionservice(OSSM),andthroughthecommandfromEMI.OCMprovidesthefollowingfunctions:systemcongurationgrow/degrow,inquiryandchangeofcongurationdataandoperationalparameters.MainFunctionsareasfollows:•SystemcongurationmanagementManagethesystemcongurationwithPLD•PLDinquiryandchange–UppermanagementsysteminquiresandchangesPLDbycommand–PLDchangesareupdatedinitsownnonvolatilestoragebyoperator’scommand.•PLDauditFortheconsistentPLDdatawiththeuppermanagementsystem•Grow/degrowofresourcesLink,board,sector,theauxiliarydevicesinthesystemOCMisimplementedontheMMA.RDMTheRASDiagnosisManagement(RDM)checksifinternalandexternalconnectionpathsorresourcesofthesystemarenormal.TheconnectionpathsareroughlydividedintotheexternalpathbetweenthesysteminternalIPCpathandanotherNEandthepathbetweenACRandthesystem.Inaddition,itsupportstheon-demandtestattherequestofanoperatorandtheperiodicaltestaccordingtothescheduledenedbytheoperator.TheRDMisimplementedontheMMA.MainFunctionsareasfollows:•PathTest–Internalpathtest:PingtestfortheIPCpathoftheboardlevelinNE–Externalpathtest:Traceroutetestforexternalhostsandmeasurementtheloss,delayanddelayvarianceofexternalpath(ping-based)–Trafcpathtest:TestfortheUDPmessage-basedbearerpathbetweenACRandthesystem3-26ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0–Signalpathtest:TestfortheUDPmessage-basedsignalingpathbetweenACRandthesystem•SoftwareBlockTestPingtestformainprogramsbyprocessors•RFExchangeTestTxpath,ReceiveSignalStrengthIndicator-based(RSSI-based)RxpathandVSWRdiagnosis•DU-RRHLoopbackTestSupportofloopbackfunctionfor‘DigitalI/QandC&M’interface•BackhaulperformancemonitoringtestQuality(packetloss,delayanddelayvariance)measurementforbackhaulbetweenACRandthesystem•Periodicalonlinetestbytheoperatorsetting•ChangeoftheDiagnosisScheduleSchedulesetup,suchasdiagnosisperiod,starttimeandendtimeofperiodicalonlinetest•SupportofCallTraceFunctionItreportsthecalltraceinformation(signalingmessageofaspecicMS,RFparameter,andtrafcstatistics)tothemanagementsystemviaSNMPD.•VirtualInterface(VIF)generationandremovalGenerateandremoveVIFbasedonphysicallinkcongurationinPLD•VIFstatemanagementChangethestateofphysicalVIFwithlinkfailure•RFModuleSetupandControlTransmissionofthesetupinformationrequiredfortheRFmodule,andmanagementoffailure/status©SAMSUNGElectronicsCo.,Ltd.3-27

CHAPTER3.SystemStructureThispageisintentionallyleftblank.3-28ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionCHAPTER4.MessageFlow4.1CallProcessingMessageFlow4.1.1InitialEntryBelowistheprocedurethatsetsupaprovisionedServiceFlow(SF)inthenetwork-initiatedDynamicServiceAdd(DSA)modeduringtheinitialnetworkentryprocedure.Intheinitialentryprocedure,theMSperiodicallyreceivesDownlinkChannelDescriptor(DCD),Downlink-MAP(DL-MAP),UplinkChannelDescriptor(UCD),andUplink-MAP(UL-MAP)messagesfromtheRAS,obtainsthedownlinkchannelsynchronizationanduplinkparameters,andsetsaprovisionedSFconnection.©SAMSUNGElectronicsCo.,Ltd.4-1

CHAPTER4.MessageFlowFigure4.1InitialEntryProcedureCategoryDescription(1)~(2)TheMSsendstheRAStheRNG-REQmessagecontainingtheMACaddressandRangingPurposeIndicationoftheMS.TheRASassignstheBasic&PrimaryManagementCIDandsendstheRNG-RSPmessagetotheMS.(3)~(4)TheMSsendstheRAStheSBC-REQmessagecontainingthephysicalparameterandauthorizationpolicyinformationtheMSsupports.T orequesttheauthorizationpolicy,theRASsendstheACRtheMS_PreAttachment_ReqmessagecontainingtheauthorizationpolicysupportvalueusingthedefaultIPaddressandUDPportnumberoftheACR.4-2ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(5)~(7)TheACRsendstheRAStheMS_PreAttachment_Rspmessagecontainingthesupportedauthorizationpolicy.TheRASextractstheinformationreceivedfromtheACRandsendstheMStheSBC-RSPmessagecontainingit.ThentheRASsendstheACRtheMS_PreAttachment_Ackmessagetoexplicitlyprovidenoticationofthestarttimeofthenextprocedure(EAPtransmission).(8)ThesubscriberauthenticationprocedureisperformedbetweentheMSandAAAserver.Whentheauthenticationissuccessful,theACRreceivesprovisionedpolicyinformationforeachsubscriberfromtheAAAserver.Formoreinformation,see’Authentication’.(9)~(13)TheMSsendstheRAStheREG-REQmessagecontainingtheregistrationinformation(MSCapabilities,CSCapabilities,HOSupport,etc.).TheRASsendstheACRtheMS_Attachment_ReqmessagetoinquireaboutMSCapabilitiesandCSCapabilities.TheACRsendstheRASaresponsecontainingtheresultfortherequestedregistrationinformation.TheRASsendstheMStheREG-RSPmessage.TheRASsendstheACRtheMS_Attachment_Ackmessagetoexplicitlyprovidenoticationofthestarttimeofthenextprocedure.(14)~(19)TorequestDSAforPre-ProvisionedSF ,theACRsendstheRASthePathRegistrationRequestmessagecontainingtheSFIDeld,ResourceDescriptioneld(SF/CSparameter),andDataPathID(=GREKey)eldforsettingadatapathwiththeRAS.TheRASreceivesthismessage,performsadmissioncontrol,andthensendstheMStheDSA-REQmessage.TheMSsendstheRAStheDSA-RSPmessagecontainingtheconrmationcodeastheresultoftheDSA-REQmessage.TheRASsendstheACRthePathRegistrationResponsemessagecontainingthedatapathIDtosetadatapathwiththeACR.TheACRsendstheRASthePathRegistrationConrmmessage.TheRASsendstheMStheDSA-ACKmessage.(20)~(25)ThisprocedureisusedtoassignanIPaddresstotheMSwhenitusesPMIP .IftheMSrequeststheDHCPproceduretoobtainanIPaddress,theACRperformsthePMIPprocedure.(26)~(33)ThisistheprocedureforallocatinganIPaddresstotheMSthatusesthesimpleIPmethod.IftheMSrequeststheDHCPproceduretoreceiveanallocatedIPaddress,theACRallocatestheSimpleIPaddresstotheMSusingthebuilt-inDHCPserverfunctions.Asanoption,theACRsupportstheDHCPRelayAgentfunction,whichinteroperateswiththeexternalDHCPserver.(34)~(35)TheACRnotiestheAAAserverthatthesessionhasstartedusingAAAinterfaceprotocol.4.1.2AuthenticationDuringInitialEntryThegurebelowshowstheMSauthenticationprocedureduringthe’InitialEntry’procedure,asdescribedabove.©SAMSUNGElectronicsCo.,Ltd.4-3

CHAPTER4.MessageFlowFigure4.2AuthenticationProcedure(DuringInitialEntry)CategoryDescription(0)~(2)WhenreceivingtheMS_PreAttachment_AckmessagefromtheRASasaresponsetotheSBC-RSPmessage,theACRsendstheRAStheAuthRelay-EAP-TransfermessagecontainingtheEAPRequest/IdentitypayloadtobeginEAPauthentication.TheRASrelaysthereceivedEAPpayloadtotheMSusingthePKMv2EAP-Transfer/PKM-RSPmessage.(3)~(5)TheMSincludestheNAIintheEAPResponse/IdentityandsendstheRASthePKMv2EAP-Transfer/PKM-REQmessage.TheRASrelaysthereceivedinformationtotheACRusingtheAuthRelay-EAP-Transfermessage.ACRexchangestheauthenticationmessageincludingEAPpacketusingdenedAAAinterfaceprotocol.(6)~(11)InaccordancewiththeEAPmethod,thesubscriberauthenticationprocedureisperformedbetweentheMSandAAAserver.ACRexchangestheauthenticationmessageincludingEAPpacketusingdenedAAAinterfaceprotocol.(12)~(16)Whentheauthenticationissuccessfullycompleted,theACRreceivestheMasterSessionKey(MSK)thatistheupperkeytoprovidesecurityandprovisionedpolicyinformationpersubscriberfromtheAAAserverusingdenedAAAinterfaceprotocol.TheACRcreatesanAKfromtheMSKandsendstheRAStheKey_Change_DirectivemessagecontainingthecreatedAKContextinformationandSecurityAssociation(SA)informationoftheMS.Moreover,theRAScommunicatesEAPSuccesstotheMSusingthePKMv2-EAP-Transfermessage.4-4ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(17)~(19)AfterEAPauthentication,theRASsendstheMStheSA-TEK-ChallengemessagetoverifytheAKkeyvalueoftheMSandnotifythestartofSAnegotiation.TheMSveriestheCMACoftheSA-TEK-Challengemessage,veriestheAKkeyvalue,andthensendstheRAStheSAnegotiationinformationusingtheSA-TEK-Request.TheRASsendstheMStheSA-TEK-ResponsemessagecontainingnotonlytheAKIDbutalsotheSADescriptor,whichisthenalSAnegotiationresult.(20)~(21)TheMSrequestsaTrafcEncryptionKey(TEK)fromtheRASusingthePKMv2Key-Requestmessage.TheRAScreatesaTEKrandomlyandsendsittotheMSusingthePKMv2Key-Replymessage.Atthistime,theTEKissentencrypted,withaKeyEncryptionKey(KEK).TypesandUsesofKeysThetypesandusesofkeysareasfollows:–MSK:UsedtocreateanAK–AK:UsedtocreateaCMACkey–KEK:UsedtoencryptaTEK–CMACkey:UsedtoprovideintegrityfortheMACmanagementmessage–TEK:UsedtoencrypttrafcintheairsectionDuringAuthenticatorRelocationWhentheMSperformsCSN-anchoredHandover(HO)ortheMSinIdlemodemovestoanotherACR’sareaandperformslocationupdate,thefollowingreauthenticationprocedureisperformedtomovetheauthenticatorfromtheexistingservingACRtothetargetACR.WhenthetargetACRtriggerstheMStoperformtheEAPauthenticationprocedureagainwiththeAAAserverandnotiestheservingACRoftheauthenticationresult,theauthenticatorrelocationprocedurenishes.©SAMSUNGElectronicsCo.,Ltd.4-5

CHAPTER4.MessageFlowFigure4.3AuthenticationProcedure(DuringAuthenticatorRelocation)CategoryDescription(1)~(2)TheT-ACR,whichisthenewauthenticator,exchangestheRelocationNotify/AckmessagewiththeS-ACR,whichisthepreviousauthenticator,torelocatetheauthenticatorbyperformingthereauthenticationprocedure.(3)~(11)Thereauthenticationprocedureisperformedinthetargetareainthesamewayastheauthenticationprocedureduringinitialentry.(12)~(13)TheRASsendstheT-ACR,whichistheauthenticator,theKeyChangeConrmmessagetoindicatethatthereauthenticationprocedurewiththeMShasnished.(14)~(15)TheT-ACRexchangestheRelocationConrm/AckmessagewiththeS-ACRtocompletetheauthenticatorrelocationprocedure.(16)~(17)Afterauthenticatorrelocation,thenewauthenticatornotiestheanchorthattheauthenticatorhaschangedusingtheContextRptprocedure.4.1.3StateTransitionAwakeMode→IdleMode(MS-Initiated)Ifthereisnotrafctransmissionforaspecicperiodoftime,theMStransitsfromAwakemodetoIdlemode.4-6ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0SleepMode→IdleModeTransitionTheMSinSleepmodedoesnotdirectlytransittoIdlemode.Thisisbecause,beforetheMStransitsfromSleepmodetoIdlemode,itrsttransitstoAwakemodeandrequestsDREGbeforetransitingtoIdlemode.ThederegistrationprocedurefortransitingtoIdlemodeisdividedintoMS-initiatedIdlemodetransitionandNetwork-initiatedIdlemodetransition.ThegurebelowshowstheMS-initiatedidlemodetransitionprocedure.Figure4.4AwakeMode→IdleModeStateTransitionProcedure(MS-Initiated)CategoryDescription(1)WhentheMStransitstoIdlemode,itcreatestheDREG-REQmessageandsendsittotheRAS.TheDe-RegistrationRequestCodeeldvalueissetto0x01.(2)~(5)TheRAScreatestheIM_Entry_State_Change_ReqmessagecontainingthecontextinformationoftheMSandsendsittotheACR(pagingcontroller).TheACRcreatestheIM_Entry_State_Change_RspmessagecontainingActionCode(0×05),paginginformation(PAGING_CYCLE,PAGING_OFFSET),andIdleModeRetainagandsendsittotheRAS.TheRASsendstheMStheDREG-CMDmessagecontainingtheinformationreceived.(6)~(8)IfnonetworkreentryrequestisreceivedfromtheMSuntiltheIdleResourceRetaintimerexpires,theRASperformstheDataPath(DP)ReleaseprocedurewiththeACR.(9)~(10)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,theaccountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessageAwakeMode→IdleMode(Network-Initiated)ThegurebelowshowstheNetwork-initiatedidlemodetransitionprocedure.©SAMSUNGElectronicsCo.,Ltd.4-7

CHAPTER4.MessageFlowFigure4.5AwakeMode→IdleModeStateTransitionProcedure(Network-Initiated)CategoryDescription(1)~(3)IftheDormanttimerexpires,theRAScreatestheIM_Entry_State_Change_ReqmessagecontainingthecontextinformationfortheMSandsendsittotheACR(PagingController).TheACRcreatestheIM_Entry_State_Change_Rspmessagecontainingpaginginformation(PAGING_CYCLE,PAGING_OFFSET)andIdleModeRetainandsendsittotheRAS.Atthistime,theIdleModeRetaininfoissetto0x7F .TheRASsendstheMStheDREG-CMDmessagecontainingtheinformationreceived.(4)TheMSsendstheBStheDREG-REQmessageandsetstheDe-Registration_Re-quest_Codeeldvalueto0x02.(6)~(8)Ifnonetworkre-entryrequestisreceivedfromtheMSuntiltheIdleResourceRetaintimerexpires,theRASperformstheDataPath(DP)ReleaseprocedurewiththeACR.(9)~(10)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,theaccountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessageAwakeMode→SleepModeOnlytheRAScanrecognizewhethertheMSisinAwakeorSleepmode.TheACRrecognizesbothstatesasAwakemoderegardlessofwhichmodetheMSisactuallyin.4-8ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Figure4.6AwakeMode→SleepModeStateTransitionProcedureCategoryDescription(1)~(2)Ifthereisnodatatransmissionforaspecicperiodoftime(setbytheMS/RASusingaparameter)intheMS,itstimeristimedout,andtheMStransitsfromAwakemodetoSleepmode.Atthistime,theMSsendstheMOB_SLP-REQmessagetotheRAS.TheRASsendstheMStheMOB_SLP-RSPmessageasaresponse,andthentheMStransitstoSleepmode.(3)~(4)IfincomingtrafcoccursfortheMSinSleepmode,theRASsendstheMStheMOB_TRF-INDmessageatthelisteningcycleoftheMS.Whenreceivingthismessage,theMSsendstheRAStheULBWRequestmessageinwhichtheBWvalueissetto0.Whenreceivingthismessage,theRASrecognizesthattheMShastransitedtoAwakemodeandsendstrafctotheMS.IdleMode→AwakeMode(QCS)WhentheMSinIdlemoderespondstoapagingcausedbyincomingtrafcorwhentheMSinIdlemodesendstrafc,ittransitsfromIdlemodetoAwakemode.Forbothcases,theMShastoperformanetworkre-entryproceduretoenterAwakeMode.TheMobileWiMAXsystemshouldconsidertheQCSprocedureasanetworkre-entrymethodbydefault.Thegurebelowshowstheprocedure(QCS)inwhichIdlemodeischangedtoAwakemodeduringnetworkre-entry.©SAMSUNGElectronicsCo.,Ltd.4-9

CHAPTER4.MessageFlowFigure4.7IdleMode→AwakeModeStateTransitionProcedure(QCS)CategoryDescription(1)WhentheMStransitsfromIdlemodetoAwakemode,itcreatestheRNG-REQmessagecontainingtheMACaddressandPagingControllerIDandsendsittotheRAS.Atthistime,theRangingPurposeIndicationeldvalueissetto0x00(=NetworkReentry).(2)~(3)TheRAScreatestheIMExitStateChangeRequestmessagecontainingtheparametervaluecontainedinthereceivedRNG-REQmessage,andsendsittotheACR.AftertheACRcheckstheIdlemodestateinformationfortheMS,toperformtheQCSprocedure,theACRsendstheRAStheIMExitStateChangeResponsemessagecontainingtheIdleModeRetaininformationandtheAKContextinformationforCMACauthentication,etc.(4)~(5)Tosetadatapath(UL)withtheACR,theRASsendstheACRthePathRegistrationRequestmessagecontainingthedatapathinformation,suchastheGREkey.Asaresponse(DL)tothismessage,theACRsendstheRASthePathRegistrationResponsemessagecontainingthedatapathinformation,suchastheGREkey.(6)TheRASrespondswiththeRNG-RSPmessagecontainingtheHOOptimizationagandtherelatedCID_UpdateandSA-TEK_UpdateinformationforQCS.(7)~(8)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNTvalueupdatedbytheMS.(9)TheRASnotiestheACRofthedatapathsetupresultusingthePathRegistrationAckmessage.(10)WhenreceivingtheRNG-RSPmessage,theMSsendstheBWRequestHeadertonotifythesystemthatithastransitedtoAwakemode.(11)~(12)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,theaccountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessage4-10ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0IdleMode→AwakeModeTransitionFortheprocedureusedwhentheMStransitsfromIdlemodetoAwakemodebecauseofapaging,referto‘Paging’section.4.1.4LocationUpdateInter-RASLocationUpdateThegurebelowshowsthelocationupdateprocedureperformedwhentheMSmovestoanotherpaginggroupinthesameACR.Figure4.8Inter-RASLocationUpdateProcedureCategoryDescription(1)WhentheMSinIdlemodemovesfrompaginggroup1topaginggroup2,itreceivesthePAG-ADVmessageandthusrecognizesthatitslocationhaschanged.(2)~(3)Torequestthelocationupdate,theMSsendsthenewRAS(RAS2)theRNG-REQmessagecontainingtheMACaddress,LocationUpdateRequest,andPagingControllerID.ThenRAS2sendstheLocationUpdateRequestmessagetotheACR.(4)~(5)TheACRsendsRAS2theLocationUpdateResponsemessagecontainingpaginginformation,AKContextinformation,etc.TheRAS2checksthevalidityoftheCMAC,andthensendstheMStheRNG-RSPmessagecontainingtheLUResponse.(6)~(7)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNTvalueupdatedbytheMS.(8)TheACRsendstheLUConrmmessagetoprovidenoticationthatthelocationupdateprocedurehasnished.©SAMSUNGElectronicsCo.,Ltd.4-11

CHAPTER4.MessageFlowInter-ACRLocationUpdate(AnchorRelocation)-PMIPThegurebelowshowsthelocationupdateprocedureperformedwhentheMSmovestoanotherACR’sarea.Figure4.9Inter-ACRLocationUpdateProcedure(PMIP)4-12ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(1)~(2)Whenthepaginggroupchanges,theMSsendstheRNG-REQmessagecontainingtheMACaddress,locationupdaterequest,pagingcontrollerIDtothenewT-RAS(TargetRAS)torequestalocationupdate.TheT-RASsendsitsdefaultACRtheLocationUpdateRequestmessagecontainingthepagingcontrollerID.(3)~(5)IfthereceivedpagingcontrollerIDbelongstotheT-ACR(T argetACR),itsendstheLocationUpdateRequestmessagetothepreviousS-ACR(ServingACR)viatheR4interfacetochangethepagingcontroller.Atthistime,theAPCRelocationDestinationvalueintheLocationUpdateRequestmessageissettothepagingcontrollerIDoftheT-ACR.TheS-ACRrespondswiththeLocationUpdateResponsethatindicateswhethertoacceptthepagingcontrollerrelocationandthecontextinformationfortheMS.(6),(11)~(12)WhenreceivingtheLocationUpdateResponsemessage,theT-RASsendstheMStheRNG-RSPmessagecontaining‘LUResponse=Success’andsendstheLUConrmmessagetoconrmthatthepagingcontrollerhaschangedtotheT-ACR.(7)~(10)TheT-RASnotiestheS-ACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNTvalueupdatedbytheMS.(13)~(16)Afterthelocationupdateconrmation,theT-ACRnotiestheFA(DPF)andauthenticator,whicharestilllocatedintheS-ACR,thatthepagingcontrollerhaschanged.(17)TheT-ACRsendstheS-ACRanauthenticatorrelocationrequestfortheMS.(18)~(20)WhentheS-ACRacceptstheauthenticatorrelocationrequestreceivedfromtheT-ACR,theT-ACRrequeststhattheMSperformpagingtotriggertherelocation.(21)~(36)WhenreceivingtheMOB_PAG-ADVmessage,theMSperformstheQCSprocedure,anetworkreentryprocedure,withthenetwork.(37)~(39)ThisistheprocedureforrelocatingtheauthenticatorfromtheS-ACRtotheT-ACR.TheT-ACRtriggerstheMStoperformtheEAPauthenticationprocedureagainwiththeAAAserverandnotiestheS-ACRoftheauthenticationresulttocompletetheauthenticatorrelocationprocedure.(40)~(41)TheT-ACRsendstheS-ACRanAnchorDPFrelocationrequestfortheMS.(42)~(43)WhentheMSusesPMIP ,theT-ACR,inplaceoftheMS,registersMIPtotheHA.(44)~(45)IftheanchorDPFrelocationhasnishedsuccessfully,theS-ACRreleasestheexistingconnectionstotheAAAserverandHA.©SAMSUNGElectronicsCo.,Ltd.4-13

CHAPTER4.MessageFlowInter-ACRLocationUpdate(AnchorRelocation)-SimpleIPFigure4.10Inter-ACRLocationUpdateProcedure(SimpleIP)4-14ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(1)~(2)Whenthepaginggroupchanges,theMSsendstheRNG-REQmessagecontainingtheMACaddress,locationupdaterequest,pagingcontrollerIDtothenewT-RAS(TargetRAS)torequestalocationupdate.TheT-RASsendsitsdefaultACRtheLocationUpdateRequestmessagecontainingthepagingcontrollerID.(3)~(5)IfthereceivedpagingcontrollerIDbelongstotheT-ACR(T argetACR),itsendstheLocationUpdateRequestmessagetothepreviousS-ACR(ServingACR)viatheR4interfacetochangethepagingcontroller.Atthistime,theAPCRelocationDestinationvalueintheLocationUpdateRequestmessageissettothepagingcontrollerIDoftheT-ACR.TheS-ACRrespondswiththeLocationUpdateResponsethatindicateswhethertoacceptthepagingcontrollerrelocationandthecontextinformationfortheMS.(6)WhentheT-RASreceivestheLocationUpdateResponsemessage,itsendstheMSanRNG-RSPmessagewith’LUResponse’setto’Fail’.(7)~(8)TheLUConrmmessageissenttonotifythatthepagingcontrollerismaintainedintheS-ACR.(9)~(14)TheMSperformsidlemodeexitwiththeS-ACR,andtheS-ACRinducesfullnetworkre-entryintheMS.(15)~(31)TheMSperformsnetworkre-entrywiththeT-ACR(32)~(39)ThisistheprocedureforallocatinganIPaddresstotheMSthatusesthesimpleIPmethod.IftheMSrequeststheDHCPproceduretoreceiveanallocatedIPaddress,theACRallocatestheSimpleIPaddresstotheMSusingthebuilt-inDHCPserverfunctions.Asanoption,theACRsupportstheDHCPRelayAgentfunction,whichinteroperateswiththeexternalDHCPserver.(40)~(41)TheT-ACRnotiestheAAAserverthatthesessionhasstartedusingAAAinterfaceprotocol.Inter-ASNLocationUpdateTheprocedureforinter-ASNlocationupdateisthesameasforinter-ACRlocationupdate.4.1.5PagingPagingcanbedividedintothefollowingtwotypes:•ByperiodicallybroadcastingtheMOB_PAG-ADVmessage,theRASnotiestheMSofthecorrespondingpaginggroup.Basedonthepaginginformation(PagingCycle,PagingOffset,andPGID)receivedfromthesystemwhentheMStransitstoIdlemode,theMScheckswhetheritspaginggrouphaschangedbyperiodicallycheckingtheMOB_PAG-ADVmessage.•WhentheACRhastrafctosendtotheMSinIdlemode,ittriggerstheMOB_PAG-ADVtotheRAStotransittheMStoAwakemode.ThegurebelowshowstheprocedureforperformingpagingtotheMSinIdlemode.©SAMSUNGElectronicsCo.,Ltd.4-15

CHAPTER4.MessageFlowFigure4.11PagingProcedureCategoryDescription(1)~(2)IftheMSisinIdlemodewhenreceivingapacketthatwillbesenttoaspecicMS,theACRsendstheRAStheMSPagingAnnouncemessagecontainingtheMACaddressandpaginggroupID,andPagingCause(0x02)oftheMStotheRAS.TheRASsendstheMStheMOB_PAG-ADVmessagecontainingtheinformationreceivedfromtheACR.Then,theMSperformstheQCSprocedurewiththenetwork.FormoreinformationontheQCSprocedure,seetoIdleMode→AwakeModeof‘StateTransition.’4.1.6HandoverInter-RASHandover(HO)Thegurebelowshowstheinter-RAShandoverprocedure.4-16ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Figure4.12Inter-RASHandoverProcedure©SAMSUNGElectronicsCo.,Ltd.4-17

CHAPTER4.MessageFlowCategoryDescription(1)~(3)T orequestahandover,theMSsendsthecurrentS-RAS(ServingRAS)theMOB_MSHO-REQmessagecontainingtheneighborBS(RAS)IDandhandover-relatedparameters.TheS-RASsendstheACRtheHO-RequestmessagecontainingtheMOB_MSHO-REQparameterreceivedandthecontextinformation.TheACRforwardstheHO-RequestmessagetotheT-RAS(T argetRAS).(4)~(8)TheT-RASsendstheACRtheHO-ResponsemessagecontainingthecapabilityinformationfortheT-RAS.TheS-RASsendstheMStheMOB_BSHO-RSPmessagecontainingtherecommendedneighborBS-IDs,HO-ID,andparameterresultvalue.(9)~(13)TheMSsendstheS-RAStheMOB_HO-INDmessagecontainingtheHO-INDtypeandtargetBS-IDtoprovidenoticationthatthehandoverwillbeperformed.TheS-RASsendstheT-RAStheHO-Conrmmessagecontainingthecontextinformationanddataintegrityinformation(e.g.,bufferedSDUSN)fortheMS.(14)~(15)TheT-RASsendstheACR(authenticator)theContext-RequestmessagetorequesttheAKContextinformation.TheACRrespondswiththeContext-ReportmessagecontainingtheAKcontextinformation.(16)~(21)Thepathpre-registrationprocedureisperformedtosetupanewdatapathbetweentheACRandT-RAS.Inaddition,aforwardingpathissetupsothattheS-RAScansendtheT-RASthetrafcthatithasnotyettransmittedtotheMS.ThetrafcistransmittedtotheT-RAS.(22)WhentheT-RASacceptsthehandoverrequestfromtheMS,itnotiestheMSoftheUL_MAPIEsothattheMScansendtheHORangingRequestmessagethroughtheuplink.(23)TheMSsendstheT-RAStheRNG-REQmessagecontainingtheMACaddress,servingBS-ID,HOindication,etc.(24)~(26)ThepathregistrationprocedureisperformedtoexchangetheSFinformationthatwillbemappedtothedatapathbetweentheACRandT-RAS,whichwascreatedinsteps(16)to(18).(26)TheprocedureisperformedifthePathPreRegprocedurefails.(27)TheT-RASrespondswiththeRNG-RSPmessagecontainingtheHOOptimizationag,CID_update,andSA-TEK_update.(28)~(33)AftertheS-RAShassentalltrafctotheT-RAS,theforwardingpathisreleased.(34)WhenreceivingtheRNG-RSPmessagesuccessfully,theMSsendstheRAStheBandwidthRequest(BR)MACPDUasnotication.(35)~(36)TheT-RASsendstheS-RAStheHO-Completemessagetoprovidenoticationthatthehandoverhasnished.(37)~(38)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNTvalueupdatedbytheMS.(39)~(41)Whenthehandoverprocedurehasnished,theoldpathbetweentheS-RASandACRisreleased.4-18ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Inter-ACRHandover(HO)WhenperformingahandoverbetweenACRsinthesameASN,thepathextensionthroughtheR6interfaceisconsidered.Therefore,theprocedureforinter-ACRhandoveristhesameasinter-RAShandover.Inter-ASNHandover(HO):ASN-AnchoredMobilityInter-ASNHOisdividedintotheASN-anchoredmobilitymethodthroughtheR4interfaceandtheCSN-anchoredmobilitymethodthroughtheR3/R4interface.Thegurebelowshowstheinter-ASNhandoverprocedureintheASN-anchoredmobilitymethod.TheS-ACR(ServingACR)carriesouttheanchorfunction.©SAMSUNGElectronicsCo.,Ltd.4-19

CHAPTER4.MessageFlowFigure4.13Inter-ASNHandover(ASN-AnchoredMobility)TheHOsignalingprocedureisthesameasininter-RASHO,buttheHOsignalingmessageexchangestepsthroughtheR4interfaceareaddedbetweentheS-ACRandT-ACR(TargetACR).4-20ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(1)~(4)T orequestahandover,theMSsendsthecurrentS-RAS(ServingRAS)theMOB_MSHO-REQmessagecontainingtheneighborBS(RAS)IDandhandover-relatedparameters.TheS-RASsendstheACRtheHO-RequestmessagecontainingtheMOB_MSHO-REQparameterreceivedandthecontextinformation.TheACRforwardstheHO-RequestmessagetotheT-RAS(T argetRAS).(5)~(11)TheT-RASsendstheACRtheHO-ResponsemessagecontainingthecapabilityinformationfortheT-RAS.TheS-RASsendstheMStheMOB_BSHO-RSPmessagecontainingtherecommendedneighborBS-IDs,HO-ID,andparameterresultvalue.(12)~(18)TheMSsendstheS-RAStheMOB_HO-INDmessagecontainingtheHO-INDtypeandtargetBS-IDtoprovidenoticationthatthehandoverwillbeperformed.TheS-RASsendstheT-RAStheHO-ConrmmessagecontainingthecontextinformationfortheMS.(19)WhentheT-RASacceptsthehandoverrequestfromtheMS,itnotiestheMSoftheUL_MAPIEsothattheMScansendtheHORangingRequestmessagethroughtheuplink.(20)~(23)TheT-RASsendstheACR(authenticator)theContext-RequestmessagetorequesttheAKContextinformation.TheACRrespondswiththeContext-Report이messagecontainingtheAKcontextinformation.(24)~(29)Thepathpre-registrationprocedureisperformedtosetupanewdatapathbetweentheACRandT-RAS.(30)TheMSsendstheT-RAStheRNG-REQmessagecontainingtheMACaddress,servingBS-ID,andHOindication.(31)~(36)ThepathregistrationprocedureisperformedtoexchangetheSF(ServiceFlow)informationthatwillbemappedtothedatapathbetweentheACRandT-RAS,whichwascreatedinsteps(24)to(29).(35)~(36)TheprocedureisperformedifthePathPreRegprocedurefails.(37)TheT-RASrespondsbysendingtheRNG-RSPmessagecontainingtheHOOptimizationag,CID_update,andSA-TEK_update.(38)WhenreceivingtheRNG-RSPmessagesuccessfully,theMSsendstheRAStheBandwidthRequest(BR)MACPDUasnotication.(39)~(41)TheT-RASsendstheS-RAStheHO-Completemessagetoprovidenoticationthatthehandoverhasnished.(42)~(45)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNTvalueupdatedbytheMS.(46)~(48)Whenthehandoverprocedurehasnished,theoldpathbetweentheS-RASandACRisreleased.Inter-ASNHandover(Inter-ASNHO):CSN-AnchoredMobilityBelowisdescribedtheinter-ASNHOintheCSN-anchoredmobility.TheanchorfunctionisrelocatedfromtheS-ACR(ServingACR)totheT-ACR(TargetACR).©SAMSUNGElectronicsCo.,Ltd.4-21

CHAPTER4.MessageFlowTheCSN-anchoredmobilitymethodconsistsofthestepsthroughwhichASN-anchoredmobilityHoisperformedandtheauthenticatorandDPFanchorarerelocatedtothetargetACR.Forconvenience,thetriggeringofrelocationbyT-ACRisdenedasPullmode,andthetriggeringofrelocationbyS-ACRisdenedasPushmode.TheMobileWiMAXsystemsupportsbothpullmodeandpushmode.TheCSN-anchoredmobilitymethodcomplieswiththeMIPstandard.TheearlierstepsoftheCSN-anchoredHOsignalingprocedurearethesameasintheASN-anchoredmobilityHOprocedure.ThegurebelowshowsthestepsaftertheASN-anchoredHOhasbeenperformed.Figure4.14Inter-ASNHandover(CSN-AnchoredMobility)CategoryDescription(1)~(7)ThisistheprocedureforrelocatingtheauthenticatorfromtheS-ACRtotheT-ACR.TheT-ACRtriggerstheMStoperformtheEAPauthenticationprocedureagainwiththeAAAserver.TheT-ACRnotiestheS-RASoftheauthenticationresultstonishtheauthenticatorrelocationprocedure.(8)~(9)TheT_ACRtransmitsthecontextinformationfortheMStotheS_ACR.(10)~(14)TheauthenticatorandFArelocationaretriggeredandthePMIPregistrationisprocessed.4-22ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0CategoryDescription(15)~(16)TheS-ACRcancelsMIPregistrationoftheMSintheHA.(17)~(20)S-ACRcarriesoutsessionreleaseprocedurewithAAAserverusingdenedAAAinterfaceprotocol.4.1.7DisconnectionDisconnection(AwakeMode)ThegurebelowshowstheprocedurewithwhichtheMSinAwakemodeisdisconnectedbecausethepoweristurnedoff.Figure4.15Disconnection(AwakeMode)CategoryDescription(1)~(3)WhentheMSinAwakemodeisturnedoff,theMSsendstheRAStheDREG-REQmessagecontaining‘Deregistrationcode=0,’andtheRASnotiestheACRofthis.(4)TheACRperformstheprocedureforreleasingtheMIP-relatedinformationwiththeHA.(5)~(6)TheACRnotiestheRASoftheresultforthepowerdownoftheMS,andreleasesthedatapath.(7)~(10)TheACRperformsthesessionreleaseprocedurewiththeAAAserverusingdenedAAAinterfaceprotocol.Disconnection(IdleMode)ThegurebelowshowstheprocedurewithwhichtheMSinIdlemodeisdisconnectedbecausethepoweristurnedoff.©SAMSUNGElectronicsCo.,Ltd.4-23

CHAPTER4.MessageFlowFigure4.16Disconnection(IdleMode)CategoryDescription(1)~(5)WhentheMSinIdlemodeisturnedoff,theMSsendstheRAStheRNG-REQmessagecontainingthepowerdownindicator,andtheRASnotiestheACRofthis.TheACRdeletestheinformationfortheMS.(6)TheACRperformstheprocedureforreleasingtheMIP-relatedinformationwiththeHA.(7)~(8)TheACRperformsthesessionreleaseprocedurewiththeAAAserverusingdenedAAAinterfaceprotocol.4-24ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.04.2NetworkSynchronizationMessageFlowTheU-RASFlexibleV2usesGPSforthesystemsynchronization.TheUCCMoftheMMA-G,whichistheGPSreceptionmodule,createstheclockwiththeclockinformationreceivedfromaGPSandthendistributestheclocktoeachhardwaremoduleintheU-RASFlexibleV2.ClockinformationrequiredbytheRRHissentfromtheMRA-Fthrough‘DigitalI/QandC&M’,andtheRRHrecoversclockinformationfromthesignalstocreatenecessaryclocks.Figure4.17NetworkSynchronizationFlowofU-RASFlexibleV2©SAMSUNGElectronicsCo.,Ltd.4-25

CHAPTER4.MessageFlow4.3AlarmSignalFlowThedetectionoffailuresintheU-RASFlexibleV2canbeimplementedbyhardwareinterruptorsoftwarepollingmethod.ThefailuresgeneratedintheU-RASFlexibleV2arereportedtothemanagementsystemviatheSNMPtrapmessage.FailureAlarmTypes•SystemFailureAlarmsNTPUpdateError,FanFail,TemperatureHigh,etc.•BoardFailureAlarms–HardwareFailureAlarmsFUNCTIONFAIL,BOARDDELETION,etc.–SoftwareFailureAlarmsCOMMUNICATIONFAIL,PORTDOWN,CPUOVERLOAD,etc.•RRHFailureAlarmsLOWGAIN,OVERPOWER,VSWRFAIL,PLLUNLOCK,etc.•UDASupportof24alarms(input)and6control(output)FailureReportMessageFlowThemainOAM(UFM)collectsthefailuresdetectedfromeachboardandUDAinterfaceoftheU-RASFlexibleV2andnotiesthemtothemanagementsystem.Atthistime,itonlyreportstheupperfailureinformationbyusingthefailurelteringfunction.Ifitreceivesthecommandtoinhibitthereportforaspecicfailureorallsystemfailuresfromthemanagementsystem,itdoesnotreportthefailurereport.Theowsforthefailuredetectionandthereportmessageareasshownintheguresbelow:Figure4.18AlarmSignalFlowofU-RASFlexibleV24-26ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0Figure4.19AlarmandControlStructureofU-RASFlexibleV2©SAMSUNGElectronicsCo.,Ltd.4-27

CHAPTER4.MessageFlow4.4LoadingMessageFlowLoadingistheproceduretodownloadthesoftwareexecutionlesandthedatafromtheIS,whicharerequiredtoperformeachfunctionofeachprocessorandeachdeviceoftheU-RASFlexibleV2.LoadingtheU-RASFlexibleV2isperformedintheprocedureofinitializingthesystem.Inaddition,ifaspecicboardismountedonthesystemorthehardwareisreset,oriftheoperatoroftheuppermanagementsystemrebootsaspecicboard,loadingisperformed.Loadingisclassiedintotwotypes,oneisloadingbyusingitsownnon-volatilestorageandtheotherisloadingbyusingtheremoteIS.Whenthesystemisinitializedforthersttime,theU-RASFlexibleV2receivestheloadingbyusingtheremoteIS,andafterthis,savesthecorrespondinginformationintheinternalstorage,andbacksuptherecentinformationperiodically,andthenitisavailabletoavoidunnecessaryloading.Aftertherstinitialization,iftheinformationsavedinitsownstorageistherecentinformationbycomparingtheversion,theU-RASFlexibleV2doesnotreceivetheremoteloading.Theloadedinformationincludesthesoftwareimagewhichisconguredwiththeexecutionleandthescriptle,thecongurationinformation,thePLDrelatedtotheoperationparameterandvariouscongurationles.Amongthem,alltheinformationrequiredforthestaticroutingfunctionoftheU-RASFlexibleV2issavedinitsownstorageasthestartupcongureleformat,andprovidestheinformationrequiredatthetimeoftheinitialization.LoadingProcedureToperformtheloadingprocedurewheninitializingtheU-RASFlexibleV2,theloaderperformsthefollowingsrst.(Pre-loading)•Boot-upThebooteroftheFlashROMloadsthekernelandtheRootFileSystem(RFS)fromtheashROMtotheRAMDisk,andperformsthekernel.•IPcongurationTheIPaddressinformationisacquiredfromtheashROMandissettocommunicatewiththerstuppermanagementsystem.Whenautoinitialization,U-RASFlexibleV2acquiresautomaticallyL3informationsuchasIPaddress,subnetmaskandgatewayIPaddressforcommunicationbyusingDHCP .U-RASFlexibleV2acquiresIPaddressofadditionalinformationserver,andthenreceivestheNEIDandIPaddressofRSfromtheadditionalinformationserver.•RegistrationTheNEisregisteredtotheRS,andtheIPaddressoftheISisacquiredduringtheregistration.•VersionComparisonTheversionofthesoftwareimageandtheversionofthePLDsavedintheremoteISandintheinternalstoragearecompared,andthelocationwheretoperformloadingisdeterminedfromthat.•FileListDownloadThelistofthelestobeloadedisdownloadedforeachboard.4-28ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0LoadingMessageFlowAfterperformingthepre-loadingprocedure,ifthemethodofloadingisdetermined,theMainOAM(ULM)oftheMMA-GwhichperformstheoperationandthemaintenanceoftheentireU-RASFlexibleV2performsloadingbyusingtheFTPtothecorrespondingIS(remoteIDoritsownstorage).Then,theMainOAM(ULM)becomestheinternalimageserverforthelowerboardandperformstheloadingprocedure.TheinformationonthesoftwareloadedintheU-RASFlexibleV2canbecheckedintheuppermanagementsystem.Theloadingmessageowisasthefollowinggure:Figure4.20LoadingMessageFlow©SAMSUNGElectronicsCo.,Ltd.4-29

CHAPTER4.MessageFlow4.5OperationandMaintenanceMessageFlowAnoperatorcancheckandchangethestatusoftheU-RASFlexibleV2bymeansofthemanagementsystem.Tothisend,theU-RASFlexibleV2providestheSNMPagentfunction.ThefunctionenablestheWSMoperatortoperformtheoperationandmaintenancefunctionoftheU-RASFlexibleV2atremotesitebyusingtheSNMP .Inaddition,theoperatorcanperformWeb-EMTbasedmaintenancefunctionbyusingaWebbrowserinaconsoleterminalorIMISHbasedmaintenancefunctionbyusingtheSSHconnection.However,grow/degrow,paginginformationchangeandneighborlistchangefunctionsareonlyavailableonWSM.ThestatisticalinformationprovidedbytheU-RASFlexibleV2areprovidedtotheoperatoraccordingtocollectionperiodandthereal-timemonitoringfunctionforaspecicstatisticalitemspeciedbytheoperatoris,also,provided.OperationandMaintenanceMessageFlowTheoperationandmaintenanceoftheU-RASFlexibleV2iscarriedoutviatheSNMPget/get_next/get_bulk/set/trapmessagebetweentheSNMPagentonthemainOAMandtheSNMPmanageroftheWSM.TheU-RASFlexibleV2dealswithvariousoperationandmaintenancemessagesreceivedfromtheSNMPmanagerofthemanagementsystem,transferstheresultsandreportstheevents,suchasfailuregenerationorstatuschange,inrealtimeasapplicable.ThestatisticalinformationisprovidedasstatisticalleformatinunitofBIandthecollectionperiodcanbespeciedasoneof15,30and60minutes.TheOAMsignalowisasshowninthegurebelow:Figure4.21OperationandMaintenanceSignalFlow4-30ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionCHAPTER5.AdditionalFunctionsandTools5.1RETTheU-RASFlexibleV2cansupporttheRETfunctionbyconnectinganantennawithanAISG2.0interfaceandanRRH-B4withanAISG2.0interface.ToprovidetheRETfunction,theU-RASFlexibleV2sendsandreceivescontrolmessagestoandfromtheWSMthroughtheRETcontrollerwithintheRRH-B4(AISG2.0interface),MRA-F(DigitalI/QandC&M:Optic)andRETcontrollerofMMA-G.Byusingthispath,theWSMcancarryouttheRETfunctionthatcontrolstheantennatiltingangleremotely.Inaddition,fortheREToperation,theRRH-B4providespowertoeveryantennaconnectedtoit.Figure5.1RETInterface©SAMSUNGElectronicsCo.,Ltd.5-1

CHAPTER5.AdditionalFunctionsandTools5.2Web-EMTTheWeb-EMTisatypeofGUI-basedconsolterminalsandthetooltoaccesstheU-RASFlexibleV2directly,monitorthedevicestatusandperformoperationandmaintenance.AnoperatorcanexecutetheWeb-EMTonlywithInternetExplorerandtheinstallationofadditionalsoftwareisnotnecessary.Inaddition,GUIisprovidedinHTTPsprotocoltypeinternally.Web-EMTisprovidedtoserviceproviderasanoption.Figure5.2Web-EMTInterfaceTheWeb-EMTenablestheoperatortorestarttheU-RASFlexibleV2orinternalboards,inquire/setcongurationandoperationparameters,carryoutstatusandfailuremonitoringandperformthediagnosisfunction.However,thefunctionsforresourcegrow/degroworthechangesoftheoperationinformationconcernedwithneighborlistareonlyavailableontheWSMmanagingtheentirenetworkandtheloadingimage.5-2ⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescriptionABBREVIATIONAAAAAuthentication,Authorization,andAccountingACRAccessControlRouterADCAnalogtoDigitalConversionAGCAutomaticGainControlAISGAntennaInterfaceStandardsGroupAMCAdaptiveModulationandCodingAPIApplicationProgrammingInterfaceARQAutomaticRepeatrequestASNAccessServiceNetworkBBIBucketIntervalBPBoardProcessorCC&MControl&ManagementCACCallAdmissionControlCCCallControlCIDConnectionIdentierCLEICommonLanguageEquipmentIdentierCLIMCommandLineInterfaceManagementCLLICommonLanguageLocationIdentierCMIPClientMobileIPCoSClassofServiceCSNConnectivityServiceNetworkCTCConvolutionalTurboCodeDDAMDiameterAAAManagementDCDDownlinkChannelDescriptorDDDeviceDriverDHCPDynamicHostCongurationProtocolDLDownlink©SAMSUNGElectronicsCo.,Ltd.I

ABBREVIATIONDL-MAPDownlink-MAPDMBDigitalMainBlockDPM-FIDCPowerModule-FlexibleIndoorDSTDaylightSavingTimeEE/OElectricaltoOpticEAPExtensibleAuthenticationProtocolEMIElectro-MagneticInterferenceEMIEMSInterfaceEMSElementManagementSystemFFAForeignAgentFAFrequencyAllocationFAN-FD48FAN-FlexibleDigitalunit-48VDCFEFastEthernetFECForwardErrorCorrectionFFTFastFourierTransformFRPFrequencyReusePatternGGBICGigabitInterfaceConverterGEGigabitEthernetGPSGlobalPositioningSystemGPSRGPSReceiverGREGenericRoutingEncryptionGUIGraphicalUserInterfaceHHAHomeAgentH-ARQHybrid-AutomaticRepeatrequestHOHandoverHTTPsHypertextTransferProtocoloverSSLIIEEEInstituteofElectricalandElectronicsEngineersIMISHIntegratedManagementInterfaceShellIPInternetProtocolIPRSIPRoutingSoftwareIIⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0ISImageServerMMACMediumAccessControlMBB-FMobileWiMAXbasestationBackplaneBoard-FlexibleMEI-BMobileWiMAXbasestationExternalInterfaceboardassembly-BasicMIMOMultipleInputMultipleOutputMIPMobileIPMLPPPMultiLinkPointtoPointProtocolMMA-GMobileWiMAXbasestationMaincontrolboardAssembly-GeneralMRA-FMobileWiMAXbasestationRASboardAssembly-FlexibleMSMobileStationMWMiddlewareNNENetworkElementNPNetworkProcessorNPSNetworkProcessorSoftwareNWGNetworkWorkingGroupOO/EOptictoElectricalOAGSCommonSNMPAgentSubagentOAMOperationAndMaintenanceOCMCommonCongurationManagementOERCommonEventRouterOFDMAOrthogonalFrequencyDivisionMultipleAccessOPMCommonPerformanceManagementOSOperatingSystemOSSMCommonSubscriptionServiceManagementPPBAPanelBoardAssemblyPCBPrintedCircuitBoardPCRFPolicy&ChargingRulesFunctionPDUProtocolDataUnitPFProportionalFairPGIDPagingCycle,PagingOffsetPHYPhysicalLayerPLDProgrammableLoadingDataPMIPProxyMobileIPPP2SPulsePer2Seconds©SAMSUNGElectronicsCo.,Ltd.III

ABBREVIATIONPPPPointtoPointProtocolQQAMQuadratureAmplierModulationQCSQuickConnectionSetupQoSQualityofServiceRRASRadioAccessStationRDMRASDiagnosisManagementRETRemoteElectricalTiltingRFSRootFileSystemROHCRobustHeaderCompressionRRCRASResourceControllerRRHMobileWiMAXbasestationRemoteRadioHeadRSRegistrationServerRSCRASServiceControllerRSSIReceivedSignalStrengthIndicatorRTCRASTrafcControllerSSAESystemArchitectureEvolutionSBCSubscriberStationBasicCapacitySDUServiceDataUnitSFFSmallFormFactorFixedSFPSmallFormFactorPluggableSFTPSecureFileTransferProtocolSMFS-CSamsungMobileWiMAXU-RASFlexibleShelfassembly-CentermountSMFS-FSamsungMobileWiMAXU-RASFlexibleShelfassembly-FrontmountSNMPSimpleNetworkManagementProtocolSNMPDSNMPDaemonSSHSecureShellSSLSecureSocketsLayerTTCAThresholdCrossAlertTDDTimeDivisionDuplexUUCCMUniversalCoreClockModuleIVⓒSAMSUNGElectronicsCo.,Ltd.

MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0UCDUplinkChannelDescriptorUDAUserDenedAlarmUDEUserDeneEthernetUDPUserDatagramProtocolULUplinkUL-MAPUplink-MAPULMUniversalLoadingManagementVVIFVirtualInterfaceVLANVirtualLocalAreaNetworkWWeb-EMTWeb-basedElementMaintenanceT erminalWLANWirelessLocalAreaNetworkWSMMobileWiMAXSystemManager©SAMSUNGElectronicsCo.,Ltd.V

MPE Information ⓒ SAMSUNG Electronics Co., Ltd. Warning: Exposure to Radio Frequency Radiation The radiated output power of this device is far below the FCC radio frequency exposure limits. Nevertheless, the device should be used in such a manner that the potential for human contact during normal operation is minimized. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna should not be less than cm during normal operation. The gain of the antenna is 1 dBi. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

MobileWiMAXRASU-RASFlexibleV2SystemDescription©2012SAMSUNGElectronicsCo,.LTD.Allrightsreserved.InformationinthismanualisproprietarytoSAMSUNGElectronicsCo.,Ltd.Noinformationcontainedheremaybecopied,translated,transcribedorduplicatedbyanyformwithoutthepriorwrittenconsentofSAMSUNG.Informationinthismanualissubjecttochangewithoutnotice.