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

Samsung Electronics Co Ltd RRH (Remote RF Head)

Contents

User Manual

XXXX-000000
Ver.1.0
MobileWiMAXRASU-RASFlexibleV2
SystemDescription
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MobileWiMAXRASU-RASFlexibleV2SystemDescription
INTRODUCTION
Purpose
Thisdescriptiondescribesthecharacteristics,functionsandstructuresoftheU-RAS
FlexibleV2,whichistheRASofMobileWiMAX.
DocumentContentandOrganization
Thisdescriptioniscomposedofvechaptersandanabbreviationasfollows:
CHAPTER1.OverviewofSamsungMobileWiMAXSystem
•SamsungMobileWiMAXSystemIntroduction
•ComponentsofSamsungMobileWiMAXNetwork
CHAPTER2.OverviewofSystem
•SystemIntroduction
•Majorfunctions
•Resources
•InterfacebetweentheSystems
CHAPTER3.SystemStructure
•HardwareStructure
•SoftwareStructure
CHAPTER4.MessageFlow
•CallProcessingMessageFlow
•NetworkSynchronizationMessageFlow
•AlarmMessageFlow
•LoadingMessageFlow
•OperationandMaintenanceMessageFlow
CHAPTER5.AdditionalFunctionsandTools
•RET
•Web-EMT
©SAMSUNGElectronicsCo.,Ltd.I
INTRODUCTION
ABBREVIATION
Describestheacronymsusedinthisdescription.
Conventions
Thefollowingtypesofparagraphscontainspecialinformationthatmustbecarefullyread
andthoroughlyunderstood.Suchinformationmayormaynotbeenclosedinarectangular
box,separatingitfromthemaintext,butisalwaysprecededbyaniconand/oraboldtitle.
NOTE
Indicatesadditionalinformationasareference.
RevisionHistory
VERSIONDATEOFISSUEREMARKS
1.006.2012.FirstVersion
IIⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
TABLEOFCONTENTS
INTRODUCTIONI
Purpose.................................................................................................................I
DocumentContentandOrganization.........................................................................I
Conventions..........................................................................................................II
RevisionHistory....................................................................................................II
CHAPTER1SamsungMobileWiMAXNetwork1-1
1.1IntroductiontoSamsungMobileWiMAX................................................................1-1
1.2SamsungMobileWiMAXNetworkConguration.....................................................1-5
CHAPTER2OverviewofSystem2-1
2.1SystemIntroduction............................................................................................2-1
2.2MainFunctions...................................................................................................2-4
2.2.1PhysicalLayerProcessingFunction.............................................................2-4
2.2.2CallProcessingFunction...........................................................................2-6
2.2.3IPProcessingFunctions............................................................................2-8
2.2.4AuxiliaryDeviceInterfaceFunction..............................................................2-9
2.2.5MaintenanceFunction...............................................................................2-9
2.3Specications....................................................................................................2-13
2.4InterfacebetweenSystems..................................................................................2-16
CHAPTER3SystemStructure3-1
3.1HardwareStructure.............................................................................................3-1
3.1.1DMB......................................................................................................3-4
3.1.2RRH......................................................................................................3-7
3.1.3DPM-FI.................................................................................................3-11
3.1.4CoolingStructure....................................................................................3-13
3.1.5ExternalInterfaceStructure.......................................................................3-13
3.2SoftwareStructure.............................................................................................3-16
3.2.1SoftwareBasicStructure...........................................................................3-16
©SAMSUNGElectronicsCo.,Ltd.III
TABLEOFCONTENTS
3.2.2CCBlock...............................................................................................3-17
3.2.3OAMBlock.............................................................................................3-19
CHAPTER4MessageFlow4-1
4.1CallProcessingMessageFlow.............................................................................4-1
4.1.1InitialEntry..............................................................................................4-1
4.1.2Authentication..........................................................................................4-3
4.1.3StateTransition........................................................................................4-6
4.1.4LocationUpdate......................................................................................4-11
4.1.5Paging..................................................................................................4-15
4.1.6Handover...............................................................................................4-16
4.1.7Disconnection.........................................................................................4-23
4.2NetworkSynchronizationMessageFlow...............................................................4-25
4.3AlarmSignalFlow..............................................................................................4-26
4.4LoadingMessageFlow.......................................................................................4-28
4.5OperationandMaintenanceMessageFlow............................................................4-30
CHAPTER5AdditionalFunctionsandTools5-1
5.1RET...................................................................................................................5-1
5.2Web-EMT...........................................................................................................5-2
ABBREVIATIONI
IVⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
LISTOFFIGURES
Figure1.1CongurationofMobileWiMAXSystemFunctions(BasedonProleC)...........1-3
Figure1.2SamsungMobileWiMAXNetworkConguration........................................1-5
Figure2.1IPv4/IPv6DualStackOperation..............................................................2-8
Figure2.2StructureofU-RASFlexibleV2Interface.................................................2-16
Figure2.3ProtocolStackbetweenNEs.................................................................2-16
Figure2.4ProtocolStackbetweenU-RASFlexibleV2andWSM................................2-17
Figure3.1DUConguration(SMFS-F)....................................................................3-1
Figure3.2RRH-B4Conguration..........................................................................3-2
Figure3.3InternalCongurationofSystem(MIMO,2Carrier/3Sector)...........................3-3
Figure3.4InternalCongurationofSystem(ExampleofMIMOand6Subcell)..............3-4
Figure3.5DMBConguration...............................................................................3-5
Figure3.62T2RSplitModeofRRH-B4..................................................................3-8
Figure3.7SectorCongurationExampleUsingRRH-B4............................................3-9
Figure3.8OmniCongurationExampleUsingRRH-B4............................................3-10
Figure3.96SubcellCongurationExampleUsingRRH-B4.......................................3-11
Figure3.10DPM-FIConguration........................................................................3-11
Figure3.11PowerStructureofU-RASFlexibleV2...................................................3-12
Figure3.12FanConguration..............................................................................3-13
Figure3.13CoolingStructureoftheDU.................................................................3-13
Figure3.14ExternalInterfacesofU-RASFlexibleV2(MIMO)....................................3-14
Figure3.15SoftwareStructureofSystem..............................................................3-16
Figure3.16CCBlockStructure............................................................................3-17
Figure3.17OAMSoftwareStructure.....................................................................3-19
Figure3.18InterfacebetweenOAMBlocks............................................................3-19
Figure4.1InitialEntryProcedure...........................................................................4-1
Figure4.2AuthenticationProcedure(DuringInitialEntry)...........................................4-3
Figure4.3AuthenticationProcedure(DuringAuthenticatorRelocation).........................4-5
Figure4.4AwakeMode→IdleModeStateTransitionProcedure(MS-Initiated)..............4-7
Figure4.5AwakeMode→IdleModeStateTransitionProcedure
(Network-Initiated)................................................................................................4-7
Figure4.6AwakeMode→SleepModeStateTransitionProcedure..............................4-8
Figure4.7IdleMode→AwakeModeStateTransitionProcedure(QCS).......................4-9
Figure4.8Inter-RASLocationUpdateProcedure.....................................................4-11
Figure4.9Inter-ACRLocationUpdateProcedure(PMIP)..........................................4-12
Figure4.10Inter-ACRLocationUpdateProcedure(SimpleIP)...................................4-14
Figure4.11PagingProcedure..............................................................................4-15
Figure4.12Inter-RASHandoverProcedure............................................................4-16
©SAMSUNGElectronicsCo.,Ltd.V
TABLEOFCONTENTS
Figure4.13Inter-ASNHandover(ASN-AnchoredMobility).........................................4-19
Figure4.14Inter-ASNHandover(CSN-AnchoredMobility)........................................4-22
Figure4.15Disconnection(AwakeMode)..............................................................4-23
Figure4.16Disconnection(IdleMode)...................................................................4-23
Figure4.17NetworkSynchronizationFlowofU-RASFlexibleV2................................4-25
Figure4.18AlarmSignalFlowofU-RASFlexibleV2................................................4-26
Figure4.19AlarmandControlStructureofU-RASFlexibleV2...................................4-26
Figure4.20LoadingMessageFlow.......................................................................4-29
Figure4.21OperationandMaintenanceSignalFlow................................................4-30
Figure5.1RETInterface......................................................................................5-1
Figure5.2Web-EMTInterface..............................................................................5-2
VIⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
CHAPTER1.SamsungMobileWiMAX
Network
1.1IntroductiontoSamsungMobileWiMAX
TheMobileWiMAXsystemisthewirelessnetworksystemthatsupportsIEEE802.16
baseservice.TheIEEE802.16standardisthebasisofMobileWiMAX,andincludes
IEEEStd802.16-2004deningxedwirelessinternetaccessserviceandIEEEStd802.16,
P802.16-2004/Cor/D3deningthetechnologiessupportingmobility,whichinclude
handover,paging.
SamsungMobileWiMAXStandard
Inthisdescription,theentireSamsungMobileWiMAXstandardisexpressedIEEE
802.16.
ThewirelessLAN(WLAN,WirelessLocalAreaNetwork)canprovidehighspeeddata
services,butitsradiowaveisshortandcoversonlysmallareas,andalsogiveslimiteduser
mobility.ItisdifcultforWLANtoensureQualityofService(QoS)fordataservice.
Onthecontrary,thepresentmobilecommunicationnetworkssupportthemobilityof
theusers,buttheservicechargeandthecostofsystemoperationsarehighduetothe
limitedwirelessresources.Toprovidefasterserviceintheexistingmobilecommunication
networks,itrequiresaseparatewirelesscommunicationtechnologysuchasHighSpeed
DownlinkPacketAccess(HSDPA)forthedataservices.
SamsungMobileWiMAXcan,therefore,overcomethelimitationsoftheWLANand
presentmobilecommunicationnetworks,andaccommodateonlytheadvantagesofthe
system.
SamsungMobileWiMAXcanultimatelyprovidethehighspeedwirelessinternetservices
withlowcostatanytimeandinanyplace.
Inaddition,theIEEE802workinggroupisintheprocessofamendingtheIEEE802.16e
todevelopthemoreadvancedtechnologystandard,802.16m.The802.16mtechnology
standardwillbeamajorstepfromtheactualMobileWiMAX,andwillbereectedin
theIMT-AdvancedstandardoftheITU-R.
The802.16mstandard,whichcansubstitutethecurrent802.16estandard,willprovidea
fasterdownload(above150Mbpsat20MHzbasis),afasterupload(above50Mbpsat20
MHzbasis)andaconsistentserviceunder350km/hspeedmovement,whileensuring
mutualcompatibilitywith802.16e.
TheWiMAXforumplanstopromotetheWiMAXRelease2.0specicationbasedonthe
802.16mstandard.
©SAMSUNGElectronicsCo.,Ltd.1-1
CHAPTER1.SamsungMobileWiMAXNetwork
CharacteristicsoftheSamsungMobileWiMAXSystem
ThemajorcharacteristicsofSamsungMobileWiMAXsystemarelistedbelow.
•HighCompatibilityandCross-Interworking
TheSamsungMobileWiMAXsystemisbasedonIEEE802.16-2005standardand
complieswithWave2ProleandASNProleCoftheMobileWiMAXForum.
Therefore,theSamsungMobileWiMAXsystemprovideshighcompatibilityand
excellentcross-interworking.
•HighPerformanceModuleStructure
TheSamsungMobileWiMAXsystemhashighperformancebyusinghigh-performance
processorandprovidesthemodulestructurethatitiseasytoupgradehardwareand
software.
•HighSystemStability
TheSamsungMobileWiMAXsystemprovidestheredundancystructureformain
modulestoensurehigherstability.
•AdvanceRFandAntennaSolutionSupport
TheSamsungMobileWiMAXsystemappliesthepowerampliertosupportwideband
operationbandwidthandsupportsMultipleInputMultipleOutput(MIMO)indefault.
•EvolutionPossibilityintoNextGenerationNetworking
TheSamsungMobileWiMAXsystemcomplieswiththestructureoftheMobileWiMAX
ASNProleCnetworkandtheASNProleCnetworkcompositionissimilartothe
networkstructureconsideredin3GPPLongTermEvolution(LTE)/ServiceArchitecture
Evolution(SAE).Therefore,theSamsungMobileWiMAXsystemcaneasilyevolve
intothenextgenerationnetwork.
•MaintenanceFunctionwithStrengthenedSecurity
TheSamsungMobileWiMAXsystemcanprovidesthesecurityfunction(SSHand
HTTPs)toallchannelsforoperationandmaintenance.TheSamsungMobileWiMAX
systemprovidestheoperatorAuthentication,AuthorizationandAccounting(AAA)
functiontoauthenticatetheoperatorandassigntherightforsystemaccessandstoresthe
operationhistoryinalog.
SamsungMobileWiMAXSystem(ACRandRAS)Functions
SamsungMobileWiMAXSystemprovideshighspeeddataservicesusingthetransmission
technologyofOrthogonalFrequencyDivisionMultipleAccess(OFDMA)bytheTime
DivisionDuplex(TDD),andcangivewidercoveragecomparedtotheexistingWLAN.
Thesystemperformanceandthecapacityhavebeenexpandedbythehighperformance
hardware,andthus,itcaneasilygivevariousfunctionsandservicestotheusers.
SystemSupportStandards
NetworkWorkingGroup(NWG)ofMobileWiMAXForumdenestheMobileWiMAX
networkasAccessServiceNetwork(ASN)andConnectivityServiceNetwork(CSN).
RASofSamsungisBaseStation(BS)andACRisASN-GW(Gateway)ofASN,
respectively.
RASandACRarebasedonASNProleCandWave2ProledenedintheMobile
WiMAXForumandtheWave2ProlecontainsWave1Prole.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
ThegurebelowshowsthefunctionsoftheASNsystems(ACRandRAS)basedon
ProleC.
EachblocknamecomplieswiththestandardofMobileWiMAXNWG.
Figure1.1CongurationofMobileWiMAXSystemFunctions(BasedonProleC)
TheACRsupportstheConvergenceSublayer(CS)andperformsthepacketclassication
andPacketHeaderSuppression(PHS)functions.WhentheACRcarriesouttheheader
compressionfunction,itsupportsRobustHeaderCompression(ROHC)denedinthe
NWGstandard.
Inaddition,theACRperformsthepagingcontrollerandlocationregisterfunctionsfor
anMSinIdleMode.
Inauthentication,theACRperformstheauthenticatorfunctionandcarriesoutthekey
distributorfunctiontomanagethehighersecuritykeybyinterworkingwiththeAAAserver
asanAAAclient.Atthistime,RASperformsthekeyreceiverfunctiontoreceivethe
securitykeyfromthekeydistributorandmanageit.
TheACRinterworkswiththeAAAserverofCSNforauthenticationandchargingservices
andwiththeHAofCSNforMobileIP(MIP)service.TheACRasFAofMIPsupports
ProxyMIP(PMIP).
TheRASperformstheServiceFlowManagement(SFM)functiontocreate/change/release
connectionsforeachServiceFlow(SF)andtheadmissioncontrolfunctionwhile
creating/changingconnections.InregardtotheSFMfunctionoftheRAS,theACRcarries
outtheSFAuthentication(SFA)andSFIDmanagementfunctions.TheACRcarriesoutthe
SFAfunctiontoobtaintheQoSinformationfromPolicyFunction(PF)andapplyitinthe
©SAMSUNGElectronicsCo.,Ltd.1-3
CHAPTER1.SamsungMobileWiMAXNetwork
SFcreationandperformstheSFIDmanagementfunctiontocreate/change/releaseSFIDand
mapSFaccordingtothepacketclassication.
Inhandover,theRASperformsthehandovercontrolfunctiontodeterminetheexecution
ofthehandoveranddealwithcorrespondinghandoversignaling.TheACRconrmsthe
neighborRASlistandrelaysthehandoversignalingmessagetothetargetsystem.
Atthistime,theACRandtheRAScarriesoutthecontextfunctiontoexchangethecontext
informationbetweenthetargetsystemandtheservingsystem.
TheRASperformstheRadioResourceControl(RRC)andRRAgent(RRA)functionsto
collect/managetheradioresourceinformation(e.g.,BSID)fromMSsandtheRASitself.
ASNSystemFunction
Forthedetaileddescriptionaboutthesystemfunctions,refertothesystem
descriptionforeachsystemprovidedbySamsung.
1-4ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
1.2SamsungMobileWiMAXNetworkConguration
SamsungMobileWiMAXnetworkiscomposedofASN,CSN,andWSM.WSMisthe
NetworkElement(NE)tomanageACRandRAS.ASNisconnectedwithCSNbyrouter
andswitch.
ThefollowingdiagramshowsthecompositionofSamsungMobileWiMAXnetwork.
Figure1.2SamsungMobileWiMAXNetworkConguration
RadioAccessStation(RAS)
RASasthesystembetweenACRandMShastheinterfacewithACRandprovidesthe
wirelessconnectiontoMSunderIEEE802.16standardstosupportwirelesscommunication
serviceforsubscribers.
RAScarriesoutwirelesssignalexchangewithMS,modulation/demodulationsignal
processingforpackettrafcsignal,efcientuseofwirelessresources,packetscheduling
forQualityofService(QoS)assurance,assignmentofwirelessbandwidth,Automatic
Repeatrequest(ARQ)processingandrangingfunction.Inaddition,RAScontrolsthe
connectionforpacketcallsandhandover.
©SAMSUNGElectronicsCo.,Ltd.1-5
CHAPTER1.SamsungMobileWiMAXNetwork
AccessControlRouter(ACR)
ACR,whichisthesystembetweenCSNandRAS,enablesseveralRASstointerworkwith
IPnetwork,sends/receivestrafcbetweenexternalnetworkandMS,andcontrolsQoS.
Also,theACRprovidesinterfacefortheNE(AAAserver,etc.)oftheCSN.
SamsungMobileWiMAXSystemManager(WSM)
WSMprovidesthemanagementenvironmentfortheoperatortooperateandmaintain
ACRandRAS.
HomeAgent(HA)
HAaccessesothernetworksorprivatenetworksandenablesMobileIP(MIP)usersto
accessinternet.HAinterworkswithACRthatperformsForeignAgent(FA)functionto
exchangePMIPv4signallingandbearertrafc.
Authorization,AuthenticationandAccounting(AAA)Server
AAAserverinterfaceswithACRandcarriesoutsubscriberauthenticationandaccounting
functions.TheAAAserverinterfaceswithACRviaDiameter/RADIUSprotocoland
providesExtensibleAuthenticationProtocol(EAP)certication.
DynamicHostCongurationProtocol(DHCP)Server
TheDHCPserverallocatesIPaddressestosimpleIPusers.WhenanMSrequestsanIP
addressallocation,theDHCPserverallocatesanIPaddressininteroperationwiththeACR
thatfunctionsastheDHCPrelayagentandsendsittotheACR.
Policy&ChargingRulesFunction(PCRF)Server
ThePCRFserveristheserverthatmanagestheservicepolicyandinterfaceswithACRvia
Diameterprotocol.ThePCRFserversendsQoSsettinginformationforeachusersession
andaccountingruleinformationtoACR.
1-6ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
CHAPTER2.OverviewofSystem
2.1SystemIntroduction
TheU-RASFlexibleV2,RASofMobileWiMAX,iscontrolledbyACRandconnects
MobileWiMAXcallstoMS.
TheU-RASFlexibleV2interfaceswithMSviaawirelesschannelobservingtheMobile
WiMAXstandard(IEEE802.16)andprovideshigh-speeddataserviceandmultimedia
serviceinwirelessbroadband.
Tothisend,theU-RASFlexibleV2providesthefollowingfunctions:
modulation/demodulationofpackettrafcsignal,schedulingandradiobandwidthallocation
tomanageairresourcesefcientlyandensureQualityofService(QoS),AutomaticRepeat
request(ARQ)processing,rangingfunction,connectioncontrolfunctiontotransmitthe
informationontheU-RASFlexibleV2andset/hold/disconnectthepacketcallconnection,
handovercontrolandACRinterfacefunctionandsystemoperationmanagementfunction.
Physically,theU-RASFlexibleV2consistsofaDigitalUnit(DU)andaMobileWiMAX
basestationRemoteRadioHead(RRH).
TheRRHislocatedremotelyfromtheDU.TheDUisadigitalunitof19in.shelfform
andcanbeinstalledinanindoororoutdoor19in.rack.Itsupportsacapacityupto
2Carrier/3Sector.TheDUisoperatedinomniorsectormodedependingonthefeaturesof
theinstallationlocation.
AnRRHisastandaloneRFunit.Itisinstalledonanoutdoorwallorpole.
U-RASFlexibleV2supports2Carrier/3Sector(6subcell).
ApplicationoftheOFDMAMethod
OFDMAisusedtotransmitdatatoseveraluserssimultaneouslybyusingthesub-carrier
allocatedtoeachuserandtransmitdatabyallocatingoneormoresub-carrierstoaspecic
subscriberaccordingtothechannelstatusandthetransmissionraterequestedbyauser.
Inaddition,sinceitcanselectthesub-carrierswithexcellentfeaturesforeachsubscriber
andallocatethemtothesubscriberswhensomesubscribersdivideandusethewhole
sub-carrier,itcanraisethedatathroughputbydistributingtheresourcesefciently.
SeparateDUandRRHStructure
AstheU-RASFlexibleV2consistsofaDUandanRRH,itiseasytosetupanetworkand
itiseasytochangethenetworkconguration.
ForconnectionsbetweentheDUandRRH,datatrafcsignalsandOAMinformationare
sent/receivedthroughthe‘DigitalI/QandC&M’interfacebasedontheCommonPublic
RadioInterface(CPRI).Physically,opticcablesareused.
EachoftheDUsandRRHsreceives-48VDCofpowerforitsoperation.
©SAMSUNGElectronicsCo.,Ltd.2-1
CHAPTER2.OverviewofSystem
•VersatileNetworkOperation
TheRRHcannotoperateonitsown,butoperatesbybeinglinkedtotheDU.TheRRH
ishighlyexibleinitsinstallation,andhelpswithsettingupanetworkinavarietyof
congurationsdependingonthelocationandoperationmethod.
•EasyInstallation
TheopticinterfacecomponentthatinterfaceswiththeDUandtheRFsignalprocessing
componentisintegratedintotheRRH,whichbecomesaverysmallandverylightsingle
unit.Therefore,theRRHcanbeinstalledonawallorpole.
Moreover,asthedistancebetweentheRRHandantennaisminimized,thelossofRF
signalsduetotheantennafeederlinecanbereducedsothatmoreenhancedRFreceiving
performancethantheexistingrack-typeRAScanbeprovided.
•NaturalCooling
BecausetheRRHisinstalledoutdoorsandhasanefcientdesign,itcanradiateheat
efcientlywithoutanyadditionalcoolingsystem.Therefore,noadditionalmaintenance
costisneededforcoolingtheRRH.
•LoopbackTest
TheU-RASFlexibleV2providestheloopbacktestfunctiontocheckwhether
communicationisnormalonthe‘DigitalI/QandC&M’interfacelinebetweenthe
DUandRRH.
•RemoteFirmwareDownloading
TheoperatorcanupgradetheRRHanditsservicebyreplacingitsrmware.
Withoutvisitingtheeldstation,theoperatorcandownloadrmwaretotheRRH
remotelyusingasimplecommandfromtheWSM.
Inthisway,operatorscanminimizethenumberofvisitstotheeldstation,reducing
maintenancecostsandallowingthesystemtobeoperatedwithgreaterease.
•MonitoringPort
OperatorscanmonitortheinformationforanRRHusingitsdebugport.
SupportofMIMO
TheU-RASFlexibleV2supportsMIMOthroughthe2Tx/2RxRFpathoftheRRH.The
followingmethodsareavailableinMIMO:
•Downlink
–SpaceTimeCoding(STC):methodforraisingreliabilityoflink
–SpatialMultiplexing(SM):methodforraisingdatatransmissionrate
•Uplink
CollaborativeSM(CSM):methodfordoublingthefrequencyefciency
SupportofFrequencyReusePattern(FRP)
TheU-RASFlexibleV2supportsFRPN=1thatprovidestheserviceto3-sectorbyusinga
carrierandFRPN=3thatprovidestheserviceto3-sectorbyusingdifferentcarriers.
AserviceprovidercanefcientlyoperateitsownfrequencyresourcesbyusingtheFRP
function.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
SupportofSmoothMigration
DUofU-RASFlexibleV2canbemigratedtoTD-LTEbyaddthechannelcardand
upgradingthesoftware.RRHofU-RASFlexibleV2canbemigratedtoTD-LTEinsameRF
bandbyonlysoftwareupgrade,andRRHcansupport802.16eandTD-LTEatthesametime.
SystemFeatureAvailability
Fortheavailabilityofaspecicfeaturedescribedinthissystemdescription,please
seearelevantdocumentprovidedseparately.
©SAMSUNGElectronicsCo.,Ltd.2-3
CHAPTER2.OverviewofSystem
2.2MainFunctions
ThemainfunctionsoftheU-RASFlexibleV2areasfollows:
•Physicallayerprocessingfunction
•Callprocessingfunction
•IPprocessingfunctions
•Auxiliarydeviceinterfacefunction
•Convenientoperationandmaintenancefunction
2.2.1PhysicalLayerProcessingFunction
OFDMARanging
TherangingsupportedbytheOFDMAsystemisroughlydividedbytheuplinktiming
synchronizationmethodandthecontentionbasedbandwidthrequestmethod.
•UplinkTimingSynchronization
Intheuplinktimingsynchronizationmethod,theU-RASFlexibleV2detectsthetiming
erroroftheuplinksignalbyusingtherangingcodetransmittedfromMSandtransmits
thetimingcorrectioncommandtoeachMStocorrectthetransmissiontimingofthe
uplink.Theuplinktimingsynchronizationmethodhasinitialranging,periodicranging,
handoverranging,etc.
•ContentionBasedBandwidthRequest
Inthecontentionbasedbandwidthrequestmethod,theU-RASFlexibleV2receivesthe
bandwidthrequestrangingcodefromeachMSandallocatesuplinkresourcestothe
correspondingMStoenabletotransmitthebandwidthrequestheader.Thecontention
basedbandwidthrequestmethodhasbandwidthrequestrangingorsomething.
ChannelEncoding/Decoding
TheU-RASFlexibleV2carriesouttheForwardErrorCorrection(FEC)encodingforthe
downlinkpacketcreatedintheupperlayerbyusingConvolutionalTurboCode(CTC).
Onthecontrary,itdecodestheuplinkpacketreceivedfromtheMSafterdemodulating.
Modulation/Demodulation
TheU-RASFlexibleV2carriesouttheFECencodingforthedownlinkpacketcreatedin
theupperlayerandmodulatestheencodedpacketintotheQAMsignal.Inaddition,the
U-RASFlexibleV2demodulatesanddecodestheuplinkpacketreceivedfromMS.
OFDMASub-carrierAllocation
Thesubchannelizationistheprocesstotiethesub-carriersofOFDMAasatransmission
unitaftergroupingthembyacertainrule.TheU-RASFlexibleV2performsthe
subchannelizationtomitigatetheinterferencebetweencells.
TheU-RASFlexibleV2mapsthecolumnofthemodulateddownlinkQAMsymbol
structurewitheachsub-carrierandcarriesoutthesubchannelizationwhenthecolumnofthe
QAMsymbolstructureistransmittedtotheMSoverthewirelessline.Insuchway,the
2-4ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
U-RASFlexibleV2transmitsthecolumnoftheQAMsymbolstructuretotheMSviathe
sub-carrierspertainedtoeachsubchannel.
DL/ULMAPConstruction
TheU-RASFlexibleV2informstheairresourcesfortheuplinkandthedownlinktothe
MSbyusingDL/ULMAP .TheDL/ULMAPconsistsoftheschedulinginformationofthe
U-RASFlexibleV2andincludesvariouscontrolinformationfortheMS.
PowerControl
TheU-RASFlexibleV2carriesoutthepowercontrolfunctionfortheuplinksignalreceived
frommultipleMSsandthensetthepowerintensityoftheuplinksignaltoaspeciclevel.
TheU-RASFlexibleV2transmitsthepowercorrectioncommandtoeachMSandthen
makestheMSpowerintensitybethelevelrequiredintheU-RASFlexibleV2whentheMS
transmitsthemodulateduplinksignalinaspecicQAMmodulationmethod.
Hybrid-ARQ(H-ARQ)Operation
H-ARQisthephysicallayerretransmissionmethodusingthestop-and-waitprotocol.
TheU-RASFlexibleV2carriesouttheH-ARQfunctionandraisesdatathroughputby
re-transmittingorcombiningtheframefromthephysicallayertominimizetheeffect
attendingtothechangeofwirelesschannelenvironmentorthechangeintheinterference
signallevel.
MIMO
TheU-RASFlexibleV2providestheMIMOfunctionasfollowsaccordingtoMobile
WiMAXWave2Prole:
•Downlink
–MatrixA(STC):TransmissionratiooftheMatrixAorSTCis1andequaltothatof
SingleInputSingleOutput(SISO).HoweverTheMatrixAortheSTCreducesthe
errorofthesignalreceivedfromtheMSbyraisingthestabilityofthesignalreceived
fromtheMSbymeansoftheTxdiversity.Thistechnologyis,also,effectiveinlow
SignaltoNoiseRatio(SNR)andprovidesexcellentperformanceevenwhentheMS
movesinhighspeed.
–MatrixB(SM,verticalencoding):MatrixBorSMmethodraisestheeffectivenessof
thefrequencybyraisingthetransmissionratioinproportiontothenumberofantenna
incomparisonwithSISO.ThistechnologyiseffectivewhenthereceptionSNRishigh.
•Uplink
–CollaborativeSM:CollaborativeSMisthetechnologythatdoublesthefrequency
efciencyinviewoftheU-RASFlexibleV2astwoMSswitheachindividualantenna
senddatasimultaneouslybyusingthesamechannel.
TheU-RASFlexibleV2providestheadaptiveMIMOswitchingfunction,which
dynamicallyselectstheSMorSTCmethodforthedownlinkMIMOfunction.TheU-RAS
FlexibleV2performsswitchingbasedonavaluecalculatedbyreectingtheCarrierto
InterferenceandNoiseRatio(CINR)andtransmissionsuccessratesentbyanMS.
©SAMSUNGElectronicsCo.,Ltd.2-5
CHAPTER2.OverviewofSystem
2.2.2CallProcessingFunction
CellInitializationFunction
TheU-RASFlexibleV2announcestheMACManagementmessagesuchas
DCD/UCD/MOB_NBR-ADVtothecellareainserviceperiodicallytoenabletheMS
receivingthemessagetocarryouttheappropriatecallprocessingfunction.
CallControlandWirelessResourceAllocationFunction
TheU-RASFlexibleV2enablesanMStoentertoorexitfromthenetwork.WhenanMS
enterstoorexitfromthenetwork,theU-RASFlexibleV2transmits/receivesthesignaling
messagerequiredforcallprocessingviaR1interfacewiththeMSorR6interfacewithACR.
TheU-RASFlexibleV2allocatesvariousmanagement/transportConnectionIdentier
(CID)requiredforthenetworkentryandservicetoanMS.WhentheMSexitfromthe
network,theU-RASFlexibleV2collectsandreleasetheallocatedCID.
Handover
TheU-RASFlexibleV2carriesoutthesignalingandbearerprocessingforinter-sectorHO
(Handover),inter-ACRHOandinter-carrierHO.Atthistime,ACRrelaysthehandover
messagebetweenservingRASandtargetRASthroughtheR6interface.
Tominimizethetrafcdisconnectionininter-RASHO,theU-RASFlexibleV2performs
thedataswitchingfunction.Inhandover,theU-RASFlexibleV2enablestheservingRAS
toswitchtheuserdatainqueuingtothetargetRASand,therefore,theMStorecoverthe
trafcwithoutloss.
HandoverProcedure
Forthedetailedhandoverprocedure,referto’Handover’section.
SupportofSleepMode
SleepModeisthemodedenedtosavetheMSpowerunderIEEE802.16standardand
indicatesthestatusthatairresourcesallocatedtoanMSarereleasedwhentheMSdoesnot
needtrafcreception/transmissiontemporarily.IftheMSinSleepModeneedsthetrafc
reception/transmission,theMSreturnstothenormalstatusimmediately.
BothIdleModeandSleepModearemodestosavetheMSpower.TheIdleModerelease
allserviceowsallocatedtoanMS,whiletheSleepModereleasesonlytheairresources
betweentheMSandRAStemporarily,continuouslykeepingtheserviceowinformation
allocatedtotheMS.
TheU-RASFlexibleV2carriesouttherelatedcallprocessingfunctionbyreceiving/sending
thesignalingmessagerequiredforthestatustransitionintoSleepModeofMSandthe
returnfromtheSleepModetoAwakeModeofMS.
2-6ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
AdmissionControl(AC)Function
IftheU-RASFlexibleV2receivesthecallsetuprequest,suchasnetworkentry,Quick
ConnectionSetup(QCS)andhandover,fromanMS,itmonitorsthetrafcandsignaling
loadforeachsubcellandthenumberofuserinActive/SleepModeandperformstheAC
functiontopreventthesystemoverload.
ACcanberoughlydividedintoACbyMSandACbyserviceow.
•ACbyMS
IfthenumberofuserswhothesubcellisinActive/SleepModeexceedsthethreshold
whentheU-RASFlexibleV2receivesthecallsetuprequestfromanMS,itrejectsthe
callsetuprequestoftheMS.
•ACbyserviceow
Whenserviceowisadded,theU-RASFlexibleV2checksiftheairresourcesofthe
requestedsubcellexceedthethresholdanddeterminesthecreationoftheservice
MACARQFunction
TheU-RASFlexibleV2carriesouttheARQfunctionoftheMAClayer.Inpacketdata
exchange,thetransmissionsidetransmitsARQblockwhichSDUisdividedinto,and
retransmitsthepacketaccordingtotheARQfeedbackinformationreceivedfromthe
receptionsidetoraisethereliabilityofdatacommunication.
TheU-RASFlexibleV2carriesoutthefollowingfunctionfortheserviceowsapplying
ARQ:
•MACManagementcreationandtransmissionconcernedwithARQoperation
•FeedbackprocessingdependingonARQtypes
•Blockprocessing(fragmentation/reassemble/retransmission)dependingonARQtypes
•ARQtimer/windowmanagement
QoSSupportFunction
ThepackettrafcexchangedbetweenACRandU-RASFlexibleV2isdeliveredtothe
modemintheU-RASFlexibleV2.Atthistime,theU-RASFlexibleV2allocatesthequeue
inthemodemtoeachserviceowthatQoStypeisspeciedtoobservetheQoSconstraint
givenforeachQoSclassorserviceowandperformsthestrict-priorityscheduling
accordingtothepriority.
Themodemthatreceivesthepackettrafcperformstheschedulingbyusingthe
uplink/downlinkalgorithm,suchasProportionalFair(PF)orRoundRobin(RR)
andtransmitsthescheduledallocationinformationtoanMSthroughDL/ULMAP.
TheMSreceivingtheDL/ULMAPcheckstheairresourcesallocatedtotheMSand
modulates/demodulatesthedownlinkpacketortransmitstheuplinkpacketfromthe
allocateduplinkarea.
SincetheU-RASFlexibleV2providestheQoSmonitoringfunction,itcancompile
statisticsonpacketsunsatisfyingthelatencyrequestedfromtheQoSparameteraccordingto
TDDframesandreportthestatisticstoanoperatorviatheOAMinterface.
©SAMSUNGElectronicsCo.,Ltd.2-7
CHAPTER2.OverviewofSystem
2.2.3IPProcessingFunctions
IPQoSFunction
SincetheU-RASFlexibleV2supportsDifferentiatedServices(DiffServ),itcanprovidethe
backhaulQoSinthecommunicationwithACR.
Itsupports8-classDiffServandsupportsthemappingbetweentheDiffServserviceclass
andtheserviceclassoftheusertrafcreceivedfromanMS.Inaddition,theU-RAS
FlexibleV2supportsthemappingbetweenDifferentiatedServicesCodePoint(DSCP)and
802.3EthernetMACserviceclass.
SimultaneousSupportofIPv4/IPv6
ACRcommunicateswiththeU-RASFlexibleV2throughtheGREtunnelandthebackhaul
IPversionbetweentheU-RASFlexibleV2andACRismanagedindependentlyfrom
theserviceIPversionfortheMS.
Evenif,therefore,IPv4isusedinbackhaulbetweentheU-RASFlexibleV2andACR,all
ofIPv4,IPv6andIPv4/IPv6dualstackservicescanbesupportedfortheMS.
Figure2.1IPv4/IPv6DualStackOperation
IPRoutingFunction
SincetheU-RASFlexibleV2providesseveralEthernetinterfaces,itstorestheroutingtable
withtheinformationontheEthernetinterfacetorouteIPpackets.Theroutingtableofthe
U-RASFlexibleV2iscongureddependingonoperator’ssettingandthecongurationand
thesettingoftheroutingtablearesimilartothestandardsettingoftherouter.
TheU-RASFlexibleV2supportsthestaticroutingcongurationonlyandnottherouter
functionforthetrafcreceivedfromtheoutside.WhentheU-RASFlexibleV2connects
anauxiliarydevice,itsupportstheIPpacketroutingfunctionfortheauxiliarydeviceby
usingNetworkAddressTranslation(NA T).
2-8ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Ethernet/VLANInterfaceFunction
TheU-RASFlexibleV2providestheEthernetinterfaceandsupportsthestaticlinkgrouping
function,VirtualLocalAreaNetwork(VLAN)functionandEthernetCoSfunctionunder
IEEE802.3adfortheEthernetinterface.Atthistime,theMACbridgefunctiondenedin
IEEE802.1Disexcluded.
TheU-RASFlexibleV2enablesseveralVLANIDstobesetinoneEthernetinterfaceand
mapstheDSCPvalueofIPheaderwiththeCoSvalueofEthernetheaderinTxpacket
tosupportEthernetCoS.
2.2.4AuxiliaryDeviceInterfaceFunction
TheU-RASFlexibleV2providestheEthernetinterfacetoconnectauxiliarydevicesand
allocatesIPaddressesbyoperatingasaDHCPserverfortheauxiliarydevices.Inaddition,
theU-RASFlexibleV2providesthetrafcpathtotransmit/receivethemaintenancetrafc
betweenanauxiliarydeviceandtheremoteauxiliarydevicemonitoringserver.
IftheauxiliarydeviceusesaprivateIPaddress,theU-RASFlexibleV2carriesouttheNA T
functiontochangetheaddressintoapublicIPaddress(i.e.,theIPaddressoftheU-RAS
FlexibleV2)forthecommunicationwithanexternalmonitoringserver.
2.2.5MaintenanceFunction
TheU-RASFlexibleV2interworkingwiththemanagementsystemcarriesoutthe
followingmaintenancefunctions:systeminitializationandrestart,managementforsystem
conguration,managementfortheoperationparameters,failureandstatusmanagement
forsystemresourcesandservices,statisticsmanagementforsystemresourcesandvarious
performancedata,diagnosismanagementforsystemresourcesandservicesandsecurity
managementforsystemaccessandoperation.
CarrierExpansion(6Subcell)Function
TheU-RASFlexibleV2cansupportssixsubcellsbymountingthesixchannelcards.
Operatorcansettheoperatingsectorandoperatingfrequencyforeachsubcell.(However,
RRH-B3supportsuptofoursubcells.)
GraphicandText-basedConsoleInterface
WSMmanagestheentireMobileWiMAXsystembyusingDatabaseManagementSystem
(DBMS)andU-RASFlexibleV2interworkswiththisWSM.Inaddition,ACRinterworks
withtheconsoleterminalfordirectlyaccessingtheNEaswellasWSMbyoperatorto
performtheoperationandmaintenancefunction.
Foroperator’sconvenienceandworkingpurpose,theoperatorcanselectgraphic-based
consoleinterface(Web-basedElementMaintenanceTerminal,Web-EMT)ortext-based
consoleinterface(IntegratedManagementInterfaceShell,IMISH).
Theoperatorcanaccesstheconsoleinterfacewithnoseparatesoftwareandloginto
Web-EMTthroughInternetExploreandIMISHthroughSecureShell(SSH)onthe
commandwindow.
©SAMSUNGElectronicsCo.,Ltd.2-9
CHAPTER2.OverviewofSystem
Theoperatorcancarryouttheretrievalandsetupofthecongurationandtheoperation
informationandmonitoringaboutfaults,statusandstatisticsviaconsoleterminal.
However,theoperatorcancarryoutgrow/degrowofresourcesandsettingoftheneighbor
listandpaginggroupwhichhavecorrelationbetweenseveralNEsonlyviatheWSM.
OperatorAuthenticationFunction
TheU-RASFlexibleV2providestheauthenticationandthepermissionmanagement
functionsfortheoperatorwhomanagestheMobileWiMAXsystem.Theoperatoraccesses
theU-RASFlexibleV2byusingtheoperator’sIDandpasswordviaWeb-EMTorIMISH
andtheU-RASFlexibleV2assignstheoperationrightinaccordancewiththeoperator’s
level.
TheU-RASFlexibleV2carriesouttheloggingfunctionforsuccessfulaccess,access
failureandloginhistory.
MaintenanceFunctionwithEnhancedSecurityFunction
Forthesecurity,theU-RASFlexibleV2supportsHyperTextTransferProtocoloverSSL
(HTTPs)andSecureShell(SSH)inthecommunicationwithconsoleterminals.
On-lineSoftwareUpgrade
Whenasoftwarepackageisupgraded,theU-RASFlexibleV2canupgradethepackage
whilerunningoldversionofsoftwarepackage.Thepackageupgradeisprogressedin
thefollowingprocedure:‘AddNewPackage→ChangetoNewpackage→DeleteOld
Package’.
Inpackageupgrade,theserviceisstoppedtemporarilybecausetheoldprocessisterminated
andthenewprocessisstartedinthe‘ChangetoNewpackage’stage.
However,sinceOSisnotrestarted,theservicewillbeprovidedagainwithinafewminutes.
Afterupgradingsoftware,theU-RASFlexibleV2updatesthepackagestoredina
non-volatilestorage.
Inaddition,theU-RASFlexibleV2canre-performthe‘ChangetoNewpackage’stageto
rollbackintothepreviouspackagebeforeupgrade.
CallTraceFunction
TheU-RASFlexibleV2supportsthecalltracefunctionforaspecicMS.TheU-RAS
FlexibleV2cancarryoutthecalltracefunctionupto2MSspercarrier/sector,andupto
10MSspersystem.IfacalloccursintheMSthatanoperatorpreviouslyspeciedvia
ACR,thesignalingmessageandstatisticaltrafcdataaretransmittedtoWSM.Besides,
theU-RASFlexibleV2,also,sendstheRFenvironmentinformation,suchasCarrierto
InterferenceandNoiseRatio(CINR)forMS,ModulationandCodingSchemes(MCS)
levelandBurstErrorRate(BER).
DetailedInformationforEachSessionandServiceFlow(PSMR/PSFMR)
TheMobileWiMAXsystemofSamsungcollectsandstoresdetailedinformationofall
sessions(PerSessionMeasurementRecord,PSMR)anddetailedinformationofallservice
ows(PerServiceFlowMeasurementRecord,PSFMR)toprovideittoanexternallog
2-10ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
server.Whenasessionorserviceowiscreated,theMobileWiMAXsystemstartsto
collectrelevantinformation,andwhenthesessionorserviceowterminates,thesystem
createsandstoresamessageinalesothattheexternallogservercancollectthemessage.
TheinformationcollectedbytheACRincludessessionterminationtime,initialandnal
handoverinformation(handovertypes,cellinformation),andtheMACaddressandIP
addressallocatedtotheMS.TheU-RASFlexibleV2collectssuchinformationasMS
MACaddresses,continuedsessiontime,continuedserviceowtime,turnaroundtimefor
networkentry,CID,SFID,initialandnalwirelessqualityinformation(RSSI,CINR,Tx
power),andthroughputinformation.
TheACRdelivertheinformationcollectedbyACRtotheU-RASFlexibleV2,andthe
U-RASFlexibleV2createsandstoresaleforeachperiod.
ThresholdCrossAlert(TCA)Control
TheU-RASFlexibleV2denesunder/overthresholdforstatistics.Whenastatisticalvalue
collectedatBucketInterval(15,30,and60minutes)islowerthantheunderthreshold,
itgeneratesanunderTCAalarm.Whenthevalueishigherthantheoverthreshold,it
generatesanoverTCAalarm.ThealarmsarereportedtotheWSM.TCAcanenableor
disabledetailsofeachstatisticalgroupandsetathresholdperseverity.
IEEE802.3ah
TheU-RASFlexibleV2providesIEEE802.3ahEthernetOAMforabackhaulinterface.
AlthoughIEEE802.3ahOAMpertainsthePHYlayer,itislocatedintheMAClayerso
thatitcanbeappliedtoallIEEE802.3PHYs.Itcreatesorprocesses802.3ahOAMframes
accordingtothefunctionsdenedinthespecication.
EthernetOAMcontinuouslymonitorstheconnectionbetweenlinksateachend,andalso
monitorsdiscovery,remoteloopback,anderrorpacketswhichdeliverimportantlinkevents
suchasDyingGasp.Italsoincludesalinkmonitoringfunctionwhichdeliversevent
noticationintheeventofthresholderrors,andavariableretrievalfunctionfor802.3ah
standardMIB.
TheU-RASFlexibleV2supports802.3ahEthernetOAMpassivemodesuchasresponding
to802.3ahOAMwhichistriggeredinexternalactivemodeentitiesandloopbackmode
operation,andsendingeventnotication.
IntegrityCheck
TheU-RASFlexibleV2proactivelycheckswhethersystemcongurationoroperation
information(PLD)isincompliancewithoperatorcommandsduringsystemloadingor
operation,andalsocheckswhethersystemsettingsareOKandthereisnoproblemwith
callprocessing.IftheresultisnotOK,itsendsanalarmtotheoperator.Thatis,it
checkswhethersystemcongurationmeetstheminimumcongurationconditionsfor
callprocessingorwhetheralloperationinformationconsistsofvalidvalueswithinan
appropriaterange.Theresultisreportedtotheoperatortohelpwithcorrectionoferrors.
©SAMSUNGElectronicsCo.,Ltd.2-11
CHAPTER2.OverviewofSystem
OAMTrafcThrottling
TheU-RASFlexibleV2providesafunctionthatsuppressesOAMrelatedtrafcwhichcan
occurinthesystemdependingontheoperatorcommand.TheOAMrelatedtrafcincludes
faulttrapmessagesforalarmreportsandstatisticslesthatarecreatedperiodically.
Inafaulttrap,theoperatorcanuseanalarminhibitioncommandtosuppressalarm
generationforallorsomeofsystemfaulttraps.Thishelpscontrolalarmtrafc.
Inastatisticsle,theoperatorcanusecommandsforstatisticscollectioncongurationto
controlthesizeofstatisticslebydisablingcollectionfunctionsofeachstatisticsgroup.
ThroughputTest
TheU-RASFlexibleV2providesathroughputtestforthebackhaultotheACR.The
U-RASFlexibleV2supportsaserverandclientfunctionforthroughputtests.
TheoperatorcansetuptargetIPaddresses,testduration,andbandwidthsforthroughput
tests,andcheckthroughputandlossastestresults.However,asthethroughputtestaffects
systemperformanceandcallservices,itisrecommendednottoperformthetestduring
in-service.
SystemLogControl
TheU-RASFlexibleV2providesalogandlogcontrolfunctionperapplication.
Anapplicationlogcanbecreatedbyanoperatorcommandoritsdebuglevelcanbeset.The
operatorcanusuallykeepthelogfunctiondisabled,andwhenthelogfunctionisnecessary,
hecanchangethedebuglevel(V eryCalm,Calm,Normal,Detail,V eryDetail)toenable
loggingandlogsavefunctions.
However,enablinglogfunctionsformanyapplicationswhiletheU-RASFlexibleV2is
runningmayaffectthesystemperformance.
DisablingZeroCodeSuppression(ZCS)
TheU-RASFlexibleV2collectsstatisticsdataandgeneratesstatisticslesperiodically.
TheWSMcollectsthesestatisticsles.Astatisticsleiscomposedoftheheaderusedto
indicateastatisticsgroupanditsdetailedindex(forexample,aspeciccarrier,sector,CPU,
port,etc.)andthestatisticsdataforthatindex.
Inastatisticsperiod,thestatisticsdataforaspecicindexcanbecomezeroinastatistics
leinthefollowingcases:
•Whentheindexdoesnotactuallyexistintheconguration.
•Whentheindexexistsinthecongurationbutitsstatisticsdatacollectedduringthat
periodiszero.
Therefore,theDisablingZCSfunction,whichsetsthezerodataaginthesubindexheader,
isprovidedtorecognizethetwocasesseparately.
LineloopbacktestbetweentheDUandRRH
TheU-RASFlexibleV2providestheloopbacktestfunctiontocheckwhether
communicationisnormalonthebasebandI/QandC&MinterfacelinebetweentheDU
andRRH.
2-12ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
2.3Specications
Capacity
ThecapacityoftheU-RASFlexibleV2isasfollows:
CategorySystemCapacity
ChannelBandwidth10MHz
RFBandRRH-B4:2,496~2,690MHz(194MHz)
MaximumNumberofCarriers/Sectors2Carrier/3Sector(6sucell)
InterfacebetweenACRandU-RAS
FlexibleV2
SelectoneofFastEthernetandGigabitEthernet
FFTsize/Carrier/Sector1,024
ChannelCardCapacity1Carrier/1Sector
OutputAntennaPort-based
–5W+5W/Carrier@10MHz
–10W+10W/Carrier@10MHz,PowerBoosting
InputPower
ThetablebelowliststhepowerstandardfortheU-RASFlexibleV2.
CategoryStandard
SystemInputVoltagea)-48VDC(VoltageVariationRange:-40~-56VDC)
a)EachoftheDUandRRHreceives-48VDCofpowerforitsoperation.
UnitSizeandWeight
ThetablebelowliststhesizeandweightoftheU-RASFlexibleV2.
CategoryStandard
DU(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)
EnvironmentalCondition
Thetablebelowliststheenvironmentalconditionsandrelatedstandardssuchasoperational
temperatureandhumidity.
•DU
©SAMSUNGElectronicsCo.,Ltd.2-13
CHAPTER2.OverviewofSystem
CategoryRange
TemperatureConditiona)0~50°C(32~122°F)
HumidityConditiona)5~90%(Non-condensing),Theabsolutehumidityper1m3ofair
shouldnotexceed30g.
Altitude-60~1,800m(-197~6,000ft)
VibrationGR-63-CORESec.4.4
–Earthquake
–OfceVibration
–TransportationVibration
SoundPressureLevelLessthan65dBAmeasuredatpoints1.5m(5ft)abovetheoor
and0.6m(2ft)allaround.
EMIFCCTitle47Part15ClassA
EN301389
GR1089-CORE(Issue4)
a)Thestandardsoftemperature/humidityconditionsarebasedonthevalueonthepositionwhere
is400mm(1.3ft)awayfromthefrontoftheDUandintheheightof1.5m(5ft)onthebottom.
•RRH
CategoryRange
TemperatureConditiona)-40~50℃(-40~122℉)
HumidityConditiona)5~100%(Condensing),Theabsolutehumidityper1m3ofairshould
notexceed30g.
Altitude-60~1,800m(-197~6,000ft)
VibrationGR-487-CORESec.3.39
–Transportationshock
–Transportationvibration
–Installationshock
–Environmentallyinducedvibration
–Earthquakeresistance
SoundPressureLevelLessthan65dBAmeasuredat1.5m(5ft)fromtheRRHinall
horizontaldirectionsataheightof1m(3ft)
EMIFCCTitle47Part15ClassB
EN301389
G1089-CORE(Issue4)
RFRegulationFCCTitle47Part27
a)Thestandardsoftemperature/humidityconditionsarebasedonthevalueonthepositionwhere
is400mm(1.3ft)awayfromthefrontoftheRRHandintheheightof1.5m(5ft)onthebottom.
EnvironmentalAlarm
ThetablebelowliststheenvironmentalalarmprovidedintheU-RASFlexibleV2indefault.
2-14ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
TemperatureAlarmHighTemperature,LowTemperature
FanFailDUFanFail
VoltageAlarmHighVoltage,LowVoltage
GPSRSpecication
ThetablebelowliststheGPSReceiver(GPSR)characteristicsofU-RASFlexibleV2.
CategoryDescription
ReceivedSignalfromGPSGPSL1Signal
Accuracy/Stability0.02ppm
RFSpecication
ThetablebelowliststheRFcharacteristicsoftheU-RASFlexibleV2.
CategoryDescription
TxOutputPower–10W@avgpowerpercarrier/sector
–20W@avgpowerpercarrier/sector,powerboosting
TxConstellationerrorInaccordancewiththe802.16estandard
RXSensitivityInaccordancewiththe802.16estandard
©SAMSUNGElectronicsCo.,Ltd.2-15
CHAPTER2.OverviewofSystem
2.4InterfacebetweenSystems
InterfaceStructure
TheU-RASFlexibleV2interfaceswithanotherRASandACRasshowninthegurebelow:
Figure2.2StructureofU-RASFlexibleV2Interface
•InterfacebetweenU-RASFlexibleV2andMS
TheU-RASFlexibleV2interfaceswithanMSaccordingtotheIEEE802.16radioaccess
standardtoexchangethecontrolsignalandthesubscribertrafc.
•InterfacebetweenU-RASFlexibleV2andACR
TheinterfacebetweenanACRandtheU-RASFlexibleV2inthesameASNisR6and
itsphysicalaccessmethodisGE/FE.TheR6istheinterfacebetweenACRandRAS
denedinMobileWiMAXNWGandiscomposedofsignalingplane(IP/UDP/R6)and
bearerplane(IP/GRE).
•InterfacebetweenU-RASFlexibleV2andWSM
TheinterfacebetweentheU-RASFlexibleV2andtheWSMcomplieswithSNMPv2c
ofIETFstandard,FTPandproprietarystandardofSamsunganditsphysicalaccess
methodisGE/FE.
ProtocolStack
•ProtocolStackbetweenNEs
ThegurebelowshowstheprotocolstackbetweenNEs.
2-16ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Figure2.3ProtocolStackbetweenNEs
TheU-RASFlexibleV2interworkswithMSsviaR1interfaceaccordingtoIEEE802.16
standardandtheinterfacebetweentheU-RASFlexibleV2andACRisR6interface.
TheR6signalinginterfaceisexecutedonUDP/IPandtheR6trafcinterfaceusesthe
GREtunnel.
•ProtocolStackforOperationandMaintenance
Figure2.4ProtocolStackbetweenU-RASFlexibleV2andWSM
TheU-RASFlexibleV2interworkswithWSMinUDP/IP-basedSNMPmethodto
carryouttheoperationandmaintenancefunctions.Inparticular,theU-RASFlexible
V2interworkswithWSMinTCP/IP-basedFTPmethodtocollectthestatisticaldata
periodically,initialize&restartthesystemanddownloadsoftware.
PhysicalInterfaceOperationMethod
TheU-RASFlexibleV2providesEthernetinterfaceasanASNinterfaceandcanselectthe
typeofinterfacesdependingonthenetworkconguration.Atthistime,morethanonetype
©SAMSUNGElectronicsCo.,Ltd.2-17
CHAPTER2.OverviewofSystem
ofinterfacescannotbeoperatedsimultaneously.Thenumberofinterfacescanbeoptionally
manageddependingonthecapacityandtherequiredbandwidthoftheU-RASFlexibleV2.
Thetypesofinterfacesareasfollows:
InterfaceTypeNumberofPortsperSystem
100/1000Base-T(RJ-45)4
2
Ethernet
1000Base-X(SFP)
100/1000Base-T(RJ-45)
(Simultaneousoperation)
2
Ethernetinterfaceoperateseverallinksas802.3ad(static)-basedstaticlinkaggregation.
Theoperationandmaintenanceinterface(interfacewithWSM)isoperatedinin-band
method,whichsharesthecommonusertrafcinterface.
2-18ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
CHAPTER3.SystemStructure
3.1HardwareStructure
TheU-RASFlexibleV2hasaseparatestructureconsistingofaDUandRRHs.
BecauseuptothreeRRHscanbeconnectedtoaDU,themaximum2Carrier/3Sector
(6subcell)serviceispossible.
DU
TheboardsthatmakeuptheDUaremountedontheSMFS-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.
•DMB
TheDMBoperatesandmaintainstheU-RASFlexibleV2,enablestheU-RASFlexible
V2tointerfacewithACRandprovidesthecommunicationpathbetweenprocessors
©SAMSUNGElectronicsCo.,Ltd.3-1
CHAPTER3.SystemStructure
inthesystem.TheDMBcreatesthereferenceclock,providestheclocktothelower
hardwareblockandperformsthesignalprocessingfunctionforthesubscribersignal.
TheDMBalsointerfaceswiththeRRHtosendandreceivedatatrafc,andreceivesand
controlsalarmsforthelowerhardwareblocksormodules,includingtheRRH.
•DPM-FI
TheDPM-FIreceivesDCpowerthroughaseparaterectieranddistributesittoevery
boardandmoduleontheDUshelf.TheoperatorcancontrolDCpowersupplybyturning
thecircuitbreakeratthefrontoftheDPM-FIon/off.
•FAN-FD48
TheFAN-FD48iscomposedofasetoffourfansandmaintainstheinsidetemperatureof
theDUwithinanappropriaterangesothattheU-RASFlexibleV2canoperatenormally.
TheFAN-FD48detectstheinsidetemperatureoftheDUusingabuilt-intemperature
sensorandsetsthespeedofthefaninaccordancewiththedetectedtemperature.
RRH-B4
TheRRH-B4isasingleunitthatcanbeinstalledonawallorpolewithoutanadditional
shelforrack.
TheRRH-B4isauniedRFmoduleinterfacingremotelywiththeDUthroughanoptical
cable.Itislocatedatthefrontendoftheantenna.
Figure3.2RRH-B4Conguration
Onadownlink,itconvertsthedatatrafcintheformof‘DigitalI/QandC&M’received
fromtheMRA-FoftheDUintoRFsignalsandthensendsthemthroughanexternalantenna.
Conversely,onanuplink,theRRH-B4convertstheRFsignalsreceivedthroughtheantenna
into‘DigitalI/QandC&M’datatrafc,andthensendsthemtotheMRA-FoftheDU.
TheRRH-B4alsoreceivesclockinformationfromtheDUthroughthe‘DigitalI/QandC&
M’interface,andsends/receivesalarm/controlmessages.
3-2ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
InternalCongurationofSystem
BelowaretheinternalcongurationdiagramsoftheU-RASFlexibleV2.
•2Carrier/3SectorMIMO
Figure3.3InternalCongurationofSystem(MIMO,2Carrier/3Sector)
©SAMSUNGElectronicsCo.,Ltd.3-3
CHAPTER3.SystemStructure
•6SubcellMIMO(CarrierExpansionFunction)
Figure3.4InternalCongurationofSystem(ExampleofMIMOand6Subcell)
Rectier
Thevendormustinstalltherectierseparately.Samsungcanprovideacommercial
rectierattheserviceprovider’srequest.FortheRS-485interfaceservice
betweentheU-RASFlexibleV2andrectier,therectiermustmeettheinterface
protocolspeciedbySamsung.Forotheroperations,theU-RASFlexibleV2can
communicatewiththerectierusingUserDenedAlarms(UDA).
3.1.1DMB
TheDigitalMainBlock(DMB)supportstheoperationandmaintenanceoftheU-RAS
FlexibleV2,interfacingbetweentheU-RASFlexibleV2andACR,andinterfacingbetween
theDUandRRH.Italsocollectsandcontrolsalarmsforthelowerboardsandmodules,
3-4ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
includingtheinter-processorcommunicationpathsandRRHinthesystem.TheDMB
alsogeneratesandsuppliesclockstothelowerhardwareblocks,includingtheRRH,and
processeschannelsforsubscribersignals.
WhentheU-RASFlexibleV2sendssignalstoanMS,theDMBperformstheOFDMA
signalprocessingonthetrafcsignalsreceivedfromtheACR,convertsthemintooptical
signalsusingthe‘DigitalI/QandC&M’converter,andthensendsthemtotheremoteRRH.
Conversely,whentheU-RASFlexibleV2receivessignalsfromanMS,theDMBreceives
‘DigitalI/QandC&M’signalsfromtheremoteRRH,performstheOFDMAsignal
processingonthem,andthensendsthemtotheACR.
MainFunctions
•Creationanddistributionofthereferenceclock
•FastEthernet/GigabitEthernetinterfacewithACR
•Faultdiagnosisandalarmcollectionandcontrol
•Alarmreport
•Channelresourcemanagement
•OFDMAsignalprocessing
•AutomaticGainControl(AGC)forthereceivedRFsignalandReceivedSignalStrength
Indicator(RSSI)support
•SupportingopticalinterfacingwiththeRRHandloopbacktest
TheDMBisconguredasshowninthegurebelow:
Figure3.5DMBConguration
BoardName
Quantity
(Sheet)Function
MBB-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.SystemStructure
BoardName
Quantity
(Sheet)Function
MRA-FMax.6MobileWiMAXbasestationRASboardAssembly-Flexible
–Subscriberdatatrafcprocessing
–OFDMAProcessing
–1Carrier/1SectorMIMO
–‘DigitalI/QandC&M’dataformatting
–SupportingopticalinterfacingwiththeRRH(E/O,O/Econversion)
–SupportingloopbacktestsbetweentheDUandtheRRH
MEI-B1MobileWiMAXbasestationExternalInterfaceboardassembly-Basic
–ProvidesUserDenedAlarm(UDA)
–Alarmmonitoringincludingfanalarm/hightemperature
MobileWiMAXbasestationMaincontrolboardAssembly-General(MMA-G)
TheMMA-GprovidesamainprocessorfunctionoftheU-RASFlexibleV2,GPSsignal
receivingandclockdistribution,andnetworkinterfacefunctions.
•MainProcessorFunction
TheMMA-GistheboardthatcarriesouttheroleasthehighestlayerintheU-RAS
FlexibleV2andisequippedwiththemainprocessor.ThemainprocessoroftheMMA-G
performsthefunctions,suchascommunicationpathsettingbetweenMSandACR,
EthernetswitchfunctionintheU-RASFlexibleV2,systemoperationandmaintenance
andTDDsignalcontrol.
TheMMA-GmanagesthestatusofallhardwareandsoftwareintheU-RASFlexible
V2andreportseachstatusinformationtoWSMviaACR.Inaddition,theMMA-G
allocatesandmanagestheresourcesoftheU-RASFlexibleV2andtheconnectionof
theMMA-GandaPCfortheWeb-EMTenablestomaintaintheU-RASFlexibleV2
withnointerworkingwithACR.
•GPSSignalReceptionandClockDistributionFunction
TheMMA-GisequippedwithUniversalCoreClockModule(UCCM)forGPSsignal
reception.
TheUCCMenableseachblockoftheU-RASFlexibleV2tobeoperatedinthe
synchronizedclocksystem.TheUCCMmountedontheMMA-Gcreatesthesystem
clocks[56MHz,12.5Hz(80msec),PP2S,analog10MHz,61.44MHz]byusingthe
referencesignalreceivedfromaGPSanddistributesthemtothehardwareblocksinthe
system.TheseclocksareusedtomaintaintheinternalsynchronizationoftheU-RAS
FlexibleV2andoperatethesystem.
IfnoGPSsignalisreceivedduetoafaultwhensystemoperation,theUCCMcarries
outtheholdoverfunctiontoprovidethenormalclockforacertaintimeasprovidedin
theexistingsystem.
•NetworkInterfaceFunction
TheMMA-GinterfaceswithanACRinGigabitEthernetorFastEthernetmethod.
TheMMA-GcanprovidemaximumtwoGigabitEthernetportsorfourFastEthernet
portsperboard,andsupportthelinkaggregationredundancymethod.
3-6ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
TheMMA-Gcanbedividedasfollowsdependingontheinterfacetypesprovidedby
MMA-G,andserviceprovidercanchoosetheinterfacetype.
–MMA-GC:Four100/1000Base-TCopperports
–MMA-GM:Two100/1000Base-Tportsandtwo1000Base-XSmallFormfactor
Pluggable(SFP)ports
MobileWiMAXbasestationRASboardAssembly-Flexible(MRA-F)
TheMRA-FprovidesamodemfunctionoftheU-RASFlexibleV2andinterfacingwith
theRRH.
•ModemFunction
TheMRA-FisequippedwiththemodemsupportingIEEE802.16MobileWiMAX
standardphysicallayer(PHY)andthemodemperformstheOFDMAsignalprocessing
functionbythecontroloftheMMA-G.
TheMRA-FmodulatesthepacketdatareceivedthroughtheMMA-G,convertsthe
modulatedsignalintothe‘DigitalI/QandC&M’formatandtransmitstotheRRH.
Inthecontrary,theMRA-FdemodulatedthedatareceivedfromtheRRHafterperforming
theAGCfunction,convertsthedataintotheformatdenedintheIEEE802.16Mobile
WiMAXphysicallayerstandardandthentransmitstheconverteddatatotheMMA-Gvia
Ethernet.
•OpticalinterfacingwiththeRRHandLoopbackTest
AstheMRA-Fcontainsabuilt-inElectricaltoOptic(E/O)conversiondeviceandan
OptictoElectrical(O/E)conversiondevice,itcansendandreceive‘DigitalI/QandC&
M’signalsoftheopticalsignalsbetweendistantRRHs.
TheMRA-Fcanalsorunloopbackteststocheckwhethertheinterfacebetweenthe
MRA-FandRRHsisingoodconditionforpropercommunication.
TheoperatorcanruntheloopbacktestifnecessaryusingtheWSMcommand.
MobileWiMAXbasestationExternalInterfaceboardassembly-Basic(MEI-B)
TheMEI-Bprovidespathsforalarminformationthatisgeneratedfromexternaldevices
(additionalequipmentprovidedbytheoperator).
TheMEI-BalsocollectsalarmsforthefanmountedontheDUtoreporttotheMMA-G.
3.1.2RRH
TheRRHisaremoteRFdevicethatsupportsMobileWiMAXservices.
ItisinstalledataremotelocationfromtheDU.Itperformsthefunctionthatconnects
mobileWiMAXcallstoanMS,asdenedinthe802.16d/estandard.
MainFunctions
BelowarethemajorfunctionsoftheRRH.
•High-poweramplicationofRFtransmissionsignal
•InterfacesopticallywiththeMRA-FoftheDUusing‘DigitalI/QandC&M’andcarries
outinterfacingfortraf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)
RET
TheRETisanoptionalfunctionthattheserviceprovidercanselect.Referto’RET’.
RRH-B4Description
TheRRH-B4isaRFmoduleoftheU-RASFlexibleV2,andsupports4Tx/4RxRFpaths.
CategoryEACapacityRFPathAntennaOutput
RRH-B4Max.34Carrier/1Sector
(2Carrierwithin40
MHz+2Carrierwithin
40MHr)
MIMO(2Tx/2Rx
Split)
5W+5W/Carrier
10W+10W/Carrier@Power
Boostingatantennaports
each
TheRRH-B4isanRRH-B4thatintegratesthetransceiver,poweramplier,TDDswitch,
andltersinasinglemodule.
Inthecaseofdownlinksignals,theRRH-B4convertsbasebandsignalsreceivedthrough
the‘DigitalI/QandC&M’interfacefromtheMRA-FintoOptictoElectrical(O/E).
TheconvertedsignalsundergoDigitaltoAnalogConversion(DAC)tobeconvertedto
analogRFsignals,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/4RxtransmitandreceivepathsandcanbeoperatedinSplitModedivided
bythe2Tx/2Rx.InSplitMode,multiplecarriersinthesametransmissionpathmustbe
withinthe40MHzbandwidthonthefrequency.Butcarriersinthedifferent2Tx/2Rxhasno
restrictionforconguringoperatingfrequency.
3-8ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Figure3.62T2RSplitModeofRRH-B4
NetworkCongurationUsingtheRRH-B4
TheRRH-B4cannotoperateonitsown,butoperatesbybeinglinkedtotheDU.The
RRH-B4ishighlyexibleinitsinstallation,andhelpswithsettingupanetworkinavariety
ofcongurationsdependingonthelocationandoperationmethodasshownbelow.
©SAMSUNGElectronicsCo.,Ltd.3-9
CHAPTER3.SystemStructure
Figure3.7SectorCongurationExampleUsingRRH-B4
Figure3.8OmniCongurationExampleUsingRRH-B4
3-10ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
ConditionsforOmniCongurationUsingRRH-B4
–MultiplecellsconnectedtoasingleDUmustbelongtoasinglepaginggroup.
–Omnicellsmustbeindependent,andnotbeadjacenttoeachother.
Figure3.96SubcellCongurationExampleUsingRRH-B4
Conditionsfor2T2RSplitMode
UptofourWiMAXcanbeoperatedbyoneRRH-B4.
3.1.3DPM-FI
TheDPM-FIismountedtotherightoftheU-RASFlexibleV2DMB.
Figure3.10DPM-FIConguration
©SAMSUNGElectronicsCo.,Ltd.3-11
CHAPTER3.SystemStructure
BoardNameQuantityFunction
DPM-FI1DCPowerModule-FlexibleIndoor
ReceivesDCpowerthrougharectieranddistributesittoevery
blockintheDMB
EveryboardoftheDMBandthefan(FAN-FD48)oftheDUintheU-RASFlexibleV2
receivepowerthroughtheMBB-F.
EachboardofDMBreceives-48VDCandconvertsittotherequiredvoltage.
ThefollowingpowerdiagramshowsDUinputpowerthatissuppliedtoDPM-FIand
connectionpointstoeachboard.
Figure3.11PowerStructureofU-RASFlexibleV2
RRHPowerSupply
IftheRRHisdistantfromtheDU,itissuppliedwithseparatepower(e.g.,rectier)of
-48VDC(-40~-56VDC).
3-12ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
3.1.4CoolingStructure
DU
TheDUoftheU-RASFlexibleV2maintainstheinsidetemperatureoftheshelfatan
appropriaterangeusingasetofsystemcoolingfans(FAN-FD48),sothatthesystemcan
operatenormallywhentheoutsidetemperatureoftheDUshelfchanges.
Figure3.12FanConguration
BoardNameQuantityFunction
FAN-FD481FANModule-FlexibleDigitalunit-48VDC
DUcoolingfan
ThecoolingstructureoftheDUintheU-RASFlexibleV2isasfollows.
Figure3.13CoolingStructureoftheDU
TheFAN-FD48hasabuilt-intemperaturesensor.
RRH
TheRRHoftheU-RASFlexibleV2isdesignedwithanaturalcoolingsystemthatsupports
anoutdoorenvironmentwithnoadditionalfanorheater.
3.1.5ExternalInterfaceStructure
ThelayoutofU-RASFlexibleV2interfacesisasshowninthegurebelow:
©SAMSUNGElectronicsCo.,Ltd.3-13
CHAPTER3.SystemStructure
MIMOSupport
TheU-RASFlexibleV2supportsMIMOandprovidestheadministratorwiththefollowing
externalinterface.
Figure3.14ExternalInterfacesofU-RASFlexibleV2(MIMO)
•ExternalInterfacesofDU
CategoryInterfaceTypePortNo.ConnectorType
21000Base-X:SFP(LC) Simultaneousoperation
of1000Base-Xand
100/1000Base-TX
2100/1000Base-Tx:RJ-45
Backhaul
100/1000Base-TX4RJ-45
UDE10/100Base-Tx1RJ-45
GPSAntennaAnalogRF1SMA
UDAOpen/Short168PinChampConnector
PowerDCpower(-48VDC)1Molex42816-0212
3-14ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryInterfaceTypePortNo.ConnectorType
RectierInterfaceRS-4851RJ-45
Analog10MHzAnalog10MHz(RF)1SMA
RRHInterfaceDigitalI/QandC&MMax.6SFP(Singlemode)
Console100Base-Tx1RJ-45
MMA-GDebugRS-2322USB
MRA-FDebugRS-2321USB
TDDTDDclock1SMA
•ExternalInterfaceofRRH-B4
CategoryInterfaceTypePortNo.ConnectorType
AntennaInterfaceAnalogRF(MainTrafc)4DIN(female)
DUinterfaceDigitalI/QandC&M8SFP(singlemode;LC)
PowerDCpower(-48VDC)1Grandtype(2C,O-RingLUG)
RETAISG2.0(Power/Control)1SU-20SP-8P
TDDsignaloutput1MCX Debugwindow
Debug1USB
©SAMSUNGElectronicsCo.,Ltd.3-15
CHAPTER3.SystemStructure
3.2SoftwareStructure
3.2.1SoftwareBasicStructure
Thecomponentsofthesystemsoftwareareshownbelow:OperatingSystem(OS),Device
Driver(DD),Middleware(MW),NetworkProcessorSoftware(NPS),IPRoutingSoftware
(IPRS),andapplication.TheapplicationisdividedbyCallControl(CC)blockforthecall
processingandtheOAMblockforoperationandmaintenanceofthesystem.
Figure3.15SoftwareStructureofSystem
OperatingSystem(OS)
OSinitializesandcontrolsthehardwaredevice,andrunsthesoftwareoperationinthe
hardware.Tooperatethesoftware,OSusestheembeddedLinuxOS,andmanagesthedual
softwareprocesses.Then,OSprovidesvariousfunctionsefcientlywithlimitedresources.
Middleware(MW)
MWhelpsthesmoothoperationbetweenOSandapplicationundervarioustypesof
hardwareenvironment,andtoachievethis,MWprovidesvariousservices:message
deliveryservicebetweenapplications,eventnoticationservice,debuggingutilityservices.
DeviceDriver(DD)
DDmanagesthenormaloperationofapplicationsthatOSdoesnotcontrolinthesystem.
DDprovidestheAPIfortheuserprocessortosetup/control/detectthehardwaredevice.
Also,DDconrmsthedevicecongurationbyreceivingthecongurationdatafromthe
upperuserprocessor,andalsoprovidesthefunctionsofregistermanipulationfordevice
operation,devicediagnosis,statisticsandstatusmanagement.
NetworkProcessorSoftware(NPS)
NPSmanagestheinnatefunctionsofNetworkProcessor(NP)thatmainlyprocessesthe
packets,anditconnectstheupperprocessorandNPinBoardProcessor(BP),andprovides
thefunctionsofNPmessageprocessing,NPstatisticsdatacollectionandreport.
3-16ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
IPRoutingSoftware(IPRS)
IPRSexecutestheIProutingprotocolfunction.IPRScollectsandmanagesthesystem
congurationandstatusdatanecessaryforIProutingoperation,andbasedonthedata,it
generatestheroutingtableviatheroutingprotocol,andmakespacketforwardingpossible.
CallControl(CC)
CCisasoftwaresubsystemthatprocessesthecallsinthesystem,andCCinterfaceswithMS
andACR.CCsupportsdataexchangefunctiontosupportwirelessdataservicesuchasthe
MACscheduling,airlinkcontrol,ARQprocessingandIEEE802.16messageprocessing.
OperationAndMaintenance(OAM)
TheOAMprovidestheinterface(SNMPv2c,FTP,HTTPs,SSH)ofwhichisstandardized
tointerworkwiththeuppermanagementsystemsuchastheWSM,theWeb-EMTand
consoleterminalbasedontheIMISH.
Inaddition,thisperformsthefunctionsofinitializingandrestartingthesystem,collecting
thestatisticsforprocessingthecallandvariousperformancedata,managingthesystem
congurationandresources,managingthestatusofthesoftwareresourcesandthehardware
resources,managingthefailureandperformingthediagnosticsfortheoperationandthe
managementofthesystem.
3.2.2CCBlock
TheCallControl(CC)blockcariesouttheresourcemanagementfunctionofthesystem
andtheBSfunctionofASNProle-CdenedinNWGofMobileWiMAXforum.TheCC
blockconsistsofRASResourceController(RRC),RASServiceController(RSC)andRAS
TrafcController(RTC)sub-blocksandthefunctionsofeachsub-blockareasfollow:
Figure3.16CCBlockStructure
RRCastheresourcemanagerofthesystemexchangesthestatusinformationwithallblocks
andassignsappropriatesoftwareresourcestoaservicewhenitreceivesthenecessary
servicerequestfromRAS/ACR.
RSCprocessestheMACsignalingviaR1interfaceandinterworkswithACRviaR6
interface.RSCperformstheCallAdmissionControl(CAC)intheservicecreationprocess
©SAMSUNGElectronicsCo.,Ltd.3-17
CHAPTER3.SystemStructure
andrequeststhetrafcchannelsetuptoRTC.Inaddition,RSCtransferstheinformationon
theinternalcontrolmessagetothemodemblockinthesystem.
RTCfragmentstheuserdatareceivedfromACRviatheR6interfaceinMACPDUformat
andtransfersthedatatothemodemblockorre-assemblestheMACPDUreceivedfroman
MSviatheR1interfaceandtransmitstoACR.Inaddition,theRTCinterworkswiththe
RSCblockcontrollingtheRASsignalandperformsthecallsetup/releaseprocedure.
RRC
RASResourceController(RRC)isinchargeoftheresourcemanagementofthesystem
andisactivatedontheMMA.TheRRCinterfaceswithACRoutsidethesystemandthe
RSCandOAMblocksinsidethesystem.
MainfunctionsofRRCareasfollows:
•ACRKeepAlive
•RSCKeepAlive
•InterCarrierLoadBalancing
•PagingMessageTransmission
•SystemResourceManagement
RSC
TheRASServiceController(RSC)isinchargeofthesignaling-concentratedservicein
thesystem.Asforthesystemoutside,theRSCperformsthemessageexchangewithACR
viatheMobileWiMAXstandardR6interface.Asforthesysteminside,RSCinterworks
withtheRTCthatisinchargeoftrafcdataandtransmitstheinformationontheinternal
controlmessagetothemodemblock.
TheRSCperformstheMACmessageexchangedescribedinIEEE802.16withanMSand
carriesoutthecallsetupprocedurebyinterworkingwiththeRRCviathesysteminternal
message.TheRSCisactivatedonMRA.
MainfunctionsofRSCareasfollows:
•CIDCreationandRelease
•MACManagementMessageProcessing
•R6InterfaceMessageProcessing
•Handoverprocessing
•SleepModeSupportforPowerReduction
•CollectionofV ariousStatistics
•PagingRelayFunctionforMS
RTC
TheRASTrafcController(RTC)istheblocktoprocessthetrafcofthesystem.
TheRTCistheblockpertainingtothebearerplaneandislocatedasthekernelmodule
formatofthecorrespondingCPU.TheRTCperformstheR6interfaceunderIEEE802.16
standardandenablestothemodemblocktoperformtheR1interfacenormally.
TheRTCfragmentstheuserdatareceivedfromACRviatheR6interfaceinMACPDU
formatandtransfersthedatatothemodemblockorre-assemblestheMACPDUreceived
fromanMSviatheR1interfaceandtransmitstoACR.
3-18ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Inaddition,theRTCinterworkswiththeRTCblockcontrollingtheRASsignalandperforms
thecallsetup/releaseprocedure.Thisprocessiscarriedoutviathememoryinterfaceinthe
RAScard(MRA).TheRTCcommunicateswiththemodemblockviathePCIinterface.
TheRTCisactivatedonMRAanditsmainfunctionsareasfollows:
•ARQfunction:ReceivestheARQfeedbackmessagefromanMSandprocessesthe
message.
•AnalyzesandprocessestheRSCcontrolmessageandperformsthequeuemanagement.
•Performsthetrafcinterfacewiththemodemblock.
•PerformstheschedulingfunctionforeachQoSclass
•DataTrafcProcessingFunction
RTCprovidesthedatapathbetweenACRandthesystemviatheR6datapath(GRE
tunnel).
•TrafcControlFunctionforHandover
Inhandover,RTCperformsthedatasynchronizationfunctionbetweenservingRAS/ACR
andtargetRAS/ACR.
3.2.3OAMBlock
OperationAndMaintenance(OAM)blockmanagestheoperationandmaintenanceofthe
system,anditisdividedasthethreeshownbelow:
Figure3.17OAMSoftwareStructure
ThefollowinginterfacestructurediagramshowsthecommunicationbetweenOAMblocks.
MainOAMandEMIarerunningontheMMAthatsupportmasterOAM.BoardOAMis
runningontheremaininglowerprocessorboard.
©SAMSUNGElectronicsCo.,Ltd.3-19
CHAPTER3.SystemStructure
Figure3.18InterfacebetweenOAMBlocks
TheEMIcarriesoutSNMPagentandwebserverfunction,andprovidestheOAMinterface
betweenthemanagementsystem(WSM,Web-EMTandCLITerminal)andthesystemby
providingtheIMISH.Then,toaccessthesystemdirectlyviatheWeb-EMTortheconsole
terminal,theprocessoftheoperatorauthenticationandtheauthorityallowanceviathe
WebEMTorPluggableAuthenticationModule(PAM)blockshouldbedone.
TheMainOAMislocatedinthemainprocessor.TheMainOAMcommunicateswith
theuppermanagementsystembyinterworkingwiththeEMIblockanddistributesthe
ProgrammableLoadingData(PLD)tothelowerprocessorsbymanagingthesystem
congurationastheformatofthePLD.Inaddition,theMainOAMperformsandmanages
theroleoftheImageServer(IS)andtheRegistrationServer(RS),collectsandsavesthe
statisticsdataandthefailureinformation,andreportsthemtotheuppermanagementsystem.
TheBoardOAMislocatedinthelowerprocessor.TheBoardOAMcollectsthefailure
andthestatisticsdataofeachboard,reportsthemtotheMainOAMandmonitorsthe
softwareprocessofeachboard.
Functionaldetailsofeachblockareasfollows.
SNMPD
SNMPDaemon(SNMPD)playstheSNMPagentroletosupportthestandardSNMP
(SNMPv2c)andaninterfacerolefortheuppermanagementsystem(WSM)andinterworks
withinternalsubagent.WhilereceivingrequestsonthestandardMIBobjectfromWSMare
processedbySNMPDitself,ittransmitsrequestsontheprivateMIBobjecttosubagent
inordertobehandledproperly.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
MainFunctionsareasfollows:
•StandardMIBprocessing
IftherequestforthestandardMIBobjectsuchasMIB-IIetc.isreceived,theSNMPD
processesitdirectlyandtransmitstheresponse.
•PrivateMIBprocessing
IftherequestforthePrivateMIBobjectisreceived,itisnotprocesseddirectlyby
theSNMPD,butitistransmittedtothecorrespondinginternalsubagent,andthenthe
responseistransmittedfromthesubagentanditistransmittedtothemanager.
SNMPDisimplementedontheMMA.
OAGS
CommonSNMPAgentSubagent(OAGS)playstheSNMPsubagentroletosupportthe
standardSNMP .
Also,throughmasteragent(SNMPD)OAGSplaysaninterfacerolefortheupper
managementsystemforthecommandinquiryandchangeofACRtobeoperatedthrough
theget/get-next/get-bulk/set/trapcommanddenedbySNMP.
MainFunctionsareasfollows:
•ProvidingprivateMIB
–ProvideprivateMIBtothemanagementsystem.
–GeneratethemessagedatalenecessaryfortheinterfacefunctionbetweenOAM
blocks.
•SNMPcommandprocessing
Processthecommandreceivedfromthemanagementsystemandtransmitthe
correspondingresultviatheSNMPD.
•Noticationfunction
SendtheSNMPtraptomasteragent(SNMPD)wheneverthereareneedstoinformthe
changeorthealarmofthesystemdatatotheuppermanagementsystem.
OAGSisimplementedontheMMA.
WebEMT
TheWeb-basedElementMaintenanceTerminal(WebEMT)istheblocktointerfacewith
theWebclientoftheconsoleterminalwhichusestheWebbrowser,andperformstherole
oftheWebserver.BothWeb-EMTandthesystemsupporttheHTTPcommunications
basedontheSecureSocketsLayer(SSL).
MainFunctionsareasfollows:
•Webserverfunction
–HTTPserverforthemanagementusingWeb-EMT
–ReceivehtmlrequestsanddisplayHTMLpages
•OAMblockinterface
–ProcesscommandsfromWeb-EMTinteroperatingwithotherOAMblocks
–UsermanagementviaOAMAAAserver
WebEMTisimplementedontheMMA.
©SAMSUNGElectronicsCo.,Ltd.3-21
CHAPTER3.SystemStructure
CLIM
TheCommandLineInterfaceManagement(CLIM)istheblocktointerfacewiththeIMISH,
whenitisconnectedtotheconsoleterminalviatheSecureShell(SSH)method.TheCLIM
processesthereceivedcommandviatheIMISHanddisplaysthecorrespondingresult.
MainFunctionsareasfollows:
•IMISHcommandprocessing
–Setup/change/inquiryofinterfaceandroutingfunctions
–Setup/change/inquiryofthesystemoperation&maintenance
PAM
ThePluggableAuthenticationModule(PAM)receivestheaccountandthepasswordofthe
operatorwhousestheconsoleterminal(IMISHandWeb-EMT)whenloggingin,thusit
performtheoperatorauthenticationandtheprocessofallowingtheauthority.
MainFunctionsareasfollows:
•Operator’saccountmanagementandauthentication
Thefunctionofmanagingandauthenticatingtheaccountoftheoperatorwhousesthe
consoleterminal(IMISHandWeb-EMT)isperformed.
•Operator’sauthoritymanagement
Thefunctionofallowingtheauthorityforallthecommandswhichtheoperatorcan
performisperformed.
•Passwordmanagement
Managementfunctionssuchascreatingtheoperator’spassword,savingandupdatingthe
encryptionareperformed.
PAMisimplementedontheMMA.
UFM
UniversalFaultManagement(UFM)managestheACRfaultsandthestatusofsoftware
andhardware.UFMinformsthedetectedfailurestotheuppermanagementsystemby
thelteringfunction,andappliestheseveritychangesandthethresholdtothefault
managementsystem.Inparticular,theUFMreceivesToDfromaGlobalPositioningSystem
(GPS)signalreceiver,distributesthereceivedToDtoCCsoftwareforcallprocessing,and
managesfaultsconcernedwiththeToD.
TheUFMisimplementedonMMAandalllowerboards.
MainFunctionsareasfollows:
•FailureManagement
–Hardwareandsoftwarefailuremanagementbyinterruptandpolling
–Whenthefailureisdetected,itisreportedtothemanagementsystemandtherelated
block.
•StatusManagement
–Statusmanagementforthecomponents
–Whenthestatusinformationoftheresourceischanged,itisreportedtothe
managementsystemandtherelatedblock.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
•Failurelteringandinhibition
–Thelteringfunctionisappliedtomanykindsoftheoccurredfailure,andonlythe
failureoftheoriginalreasonisreported.
–Functionofinhibitingreportingaspecickindoffailureoraspecicsystemaccording
totheoperator’srequest
•Inquiringandchangingthefailurecongurationinformation
Inquiringandchangingtheparameterssuchasthefailureseverityandthethreshold
forthegeneration
•Failureaudit
Auditingthefailureisperformedwheninitializingandrestartingthesystemandwhenthe
operatorrequeststominimizetheinconsistencyofthefailureinformationbetweenthe
systemandtheuppermanagementsystem.
•Failurehistoryinformationmanagement
Managementandsavingthefailurehistoryandperiodicallysavingthefailureinformation
totheownno-volatilestorage
•Callfaultreporting
Incaseofthecallfault,therelatedinformation(callstatus,errorcode,MSinformation,
etc.)iscollectedandreportedtothemanagementsystem.
•DDInterface
TheinterfacebetweenDDandapplicationsisprovidedforstatisticsandstatus
managementofdevices.
Loader
LoadermanagestheentireprocessfromthestartofOStothepreviousstepofULMrunning
(pre-loading).Afterthat,ifULMisactuatedaftertheinitializationscriptisexecutedandthe
registrationandloadingfunctionisperformed,theloadermonitorstheULMblock.
MainFunctionsareasfollows:
•Systemtimesetting
BeforeNTP-basedsynchronization,thesystemtimeissetbyreceivingtheTimeof
Date(ToD)fromaGPSreceiver.
•systemregistrationandloading
–RegistrationofthesystemtotheRegistrationServer(RS)
–Determinationoftheloadingmethod
•Loadingviatheownnon-volatilestorage
•Loadingviatheconsoleport(atthistime,omittingtheregistrationofthesystemto
theRS)
•LoadingviatheremoteIS
•Loadingasthelatestversionviatheversioncomparison
•BackingupandrestoringthesoftwareimageandthePLD
LoadersavesthesoftwareimageandthePLDofthelatestversioninitsownnonvolatile
storageandrestoresitasthecorrespondinginformationwhenrequired.
(IncaseofPLD,back-upbyoperator’scommand)
•ULMmonitoring
©SAMSUNGElectronicsCo.,Ltd.3-23
CHAPTER3.SystemStructure
LoadermonitorswhethertheULMblockoperatesnormallyandifitisabnormal,this
restartsit.
LoaderisimplementedonMMAandalllowerboards.
ULM
UniversalLoadingManagement(ULM)downloadsandexecutesthepackagesthatare
identiedinthelelistdownloadedbyloaderduringpre-loadingprocess.Also,ULM
monitorstheexecutedsoftwareandprovidestherunningsoftwareinformation,andsupports
therestartandthesoftwareupgradebythecommand.Inaddition,intheinitializationstage,
ULMsetsthesystemtimebyusingtheTimeofDateinformationobtainedfromaGPS
receiverandperiodicallyperformsthesynchronizationwiththeNTPserverbyactuatingas
anNTPclientaftertheloadingiscompleted.
MainFunctionsareasfollows:
•Systeminitializationandreset
–Systemresetbycommand
–ActasinternalRS&ISoflowerboard
•Softwaremanagement
–Monitortheoperationofsoftwareblockandrestartthesoftwareblockinabnormalstate
–Softwarerestartbycommand
–Provideinformationonsoftwareblockandthestatus
•InventoryManagement
–ULMprovidestheinformationsuchasthesoftwareversionforthecomponents,the
PBAID,thePBAversionandtheserialnumber,etc.
–Functionofreportingtheinventoryinformationwhenperformingtheinitialization,
addingandextendingthecomponents
•Onlineupgradeandversionmanagementforthesoftware
ULMprovidesthefunctionsofupdatingthesoftwareandthermware,upgradingthe
packageandmanagingtheversion.
•Systemtimeinformationsynchronization
SynchronizesystemtimeinformationwithNTPserverasaNTPclientandtransmit
thetimeinformationtothelowerboards
•TimeZonesetup
SetupTimeZoneandDaylightSavingTime(DST)
•Mortemtimeupdate
Setupmortemtimeaftersystemtimeinformationsynchronization
ULMisimplementedonMMAandalllowerboards.
OPM
CommonPerformanceManagement(OPM)collectsandprovidestheperformancedata
fortheuppermanagementsystemoperatortoknowthesystemperformance.TheOPM
collectstheeventgeneratedduringthesystemoperationandtheperformancedataand
transmitsthemtothemanagementsystem.Thecollectioncycleofthestatisticsdataofthe
actualOPMcanbesetas15minutes,30minutes,60minutes,andiftheentirestatistics
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
leofthebinaryformatiscreatedevery15minutes,themanagementsystemcollectsit
periodicallyviatheFTP .
MainFunctionsareasfollows:
•Recordandcollectstatisticsdata
Recordstatisticsdatatothememoryandgeneratethestatisticslebyregularlycollecting
datapereachboard
•Savethestatisticsdata
Savethestatisticsdataofeachboardinitsownnonvolatilestorageduringuptoeight
hours
•Inquireandchangethestatisticscongurationinformation
Inquireandchangethecollectioncycle(BI)andthethresholdofthestatisticsdata
•ThresholdCrossAlert(TCA)
GeneratetheTCA(Critical,Major,Minor)accordingtothedenedthresholdinevery
collectioncycleandreportittotheUFM
•Monitorthestatisticsinrealtime
Providethereal-timemonitoringfunctionforthespecicstatisticsitemdesignatedbythe
operator
OPMisimplementedonMMAandalllowerboards.
OSSM
CommonSubscriptionServiceManagement(OSSM)distributesthePLDdatanecessary
forthesoftwareblocks,andreportsthedatachangedtothecorrespondingsoftwareblock
ifPLDdataarechanged.Also,itsupportsthefunctiontomaintaintheconsistencyof
PLDdatathatarescatteredinthesystem.
MainFunctionsareasfollows:
•PLDdistribution
OSSMloadsPLDtothesharedmemoryforsoftwareblockinordertoaccessPLD
•PLDchangereport
ReportthechangesofPLDtothecorrespondingsoftwareblock
•PLDaudit
MaintaintheconsistencyofPLDswhicharedistributedinthesystem(betweenmain
boardandlowerboards)
OSSMisimplementedontheMMAandalllowerboards.
OER/OEV
TheCommonEventRouter(OER)/CommonEventViewer(OEV)managestheevent
historyasthetextformat.TheOER/OEVtransmitstheinformationonalltheevents
receivedfromtheOAMapplicationstotherelatedagent(OAGS,WebEMT),andcreates
andsavesthehistoryleofthedaily/hourlyevents,anddisplaysthelogcontentsonthe
operatorwindow(IMISH)inrealtime.
MainFunctionsareasfollows:
•Eventtransmission
OER/OEVtransmitstheinformationonthegeneratedeventtotheOAGSortheWebEMT
block,thusitenablestoreportittothemanagementsystem.
©SAMSUNGElectronicsCo.,Ltd.3-25
CHAPTER3.SystemStructure
•Creatingandsavingtheeventhistoryle
OER/OEVcreatesandsavesthedaily/hourlyeventhistoryleinitsownnonvolatile
storageasthe1Mbytemaximumsize.
•Eventdisplay
OER/OEVdisplaystheeventgeneratedinthesystemontheoperatorwindow(IMISH)in
realtime.
OER/OEVisimplementedontheMMA.
OCM
CommonCongurationManagement(OCM)managesthesystemcongurationand
parameterwithPLD,anditprovidesthedatathatarenecessaryforthesoftwareblocks.
OthersoftwareblockscanapproachPLDbytheinternalsubscriptionservice(OSSM),and
throughthecommandfromEMI.
OCMprovidesthefollowingfunctions:systemcongurationgrow/degrow,inquiryand
changeofcongurationdataandoperationalparameters.
MainFunctionsareasfollows:
•Systemcongurationmanagement
ManagethesystemcongurationwithPLD
•PLDinquiryandchange
–UppermanagementsysteminquiresandchangesPLDbycommand
–PLDchangesareupdatedinitsownnonvolatilestoragebyoperator’scommand.
•PLDaudit
FortheconsistentPLDdatawiththeuppermanagementsystem
•Grow/degrowofresources
Link,board,sector,theauxiliarydevicesinthesystem
OCMisimplementedontheMMA.
RDM
TheRASDiagnosisManagement(RDM)checksifinternalandexternalconnectionpaths
orresourcesofthesystemarenormal.Theconnectionpathsareroughlydividedintothe
externalpathbetweenthesysteminternalIPCpathandanotherNEandthepathbetween
ACRandthesystem.
Inaddition,itsupportstheon-demandtestattherequestofanoperatorandtheperiodical
testaccordingtothescheduledenedbytheoperator.
TheRDMisimplementedontheMMA.
MainFunctionsareasfollows:
•PathTest
–Internalpathtest:PingtestfortheIPCpathoftheboardlevelinNE
–Externalpathtest:Traceroutetestforexternalhostsandmeasurementtheloss,delay
anddelayvarianceofexternalpath(ping-based)
–Trafcpathtest:TestfortheUDPmessage-basedbearerpathbetweenACRandthe
system
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
–Signalpathtest:TestfortheUDPmessage-basedsignalingpathbetweenACRand
thesystem
•SoftwareBlockTest
Pingtestformainprogramsbyprocessors
•RFExchangeTest
Txpath,ReceiveSignalStrengthIndicator-based(RSSI-based)RxpathandVSWR
diagnosis
•DU-RRHLoopbackTest
Supportofloopbackfunctionfor‘DigitalI/QandC&M’interface
•Backhaulperformancemonitoringtest
Quality(packetloss,delayanddelayvariance)measurementforbackhaulbetweenACR
andthesystem
•Periodicalonlinetestbytheoperatorsetting
•ChangeoftheDiagnosisSchedule
Schedulesetup,suchasdiagnosisperiod,starttimeandendtimeofperiodicalonlinetest
•SupportofCallTraceFunction
Itreportsthecalltraceinformation(signalingmessageofaspecicMS,RFparameter,
andtrafcstatistics)tothemanagementsystemviaSNMPD.
•VirtualInterface(VIF)generationandremoval
GenerateandremoveVIFbasedonphysicallinkcongurationinPLD
•VIFstatemanagement
ChangethestateofphysicalVIFwithlinkfailure
•RFModuleSetupandControl
TransmissionofthesetupinformationrequiredfortheRFmodule,andmanagementof
failure/status
©SAMSUNGElectronicsCo.,Ltd.3-27
CHAPTER3.SystemStructure
Thispageisintentionallyleftblank.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription
CHAPTER4.MessageFlow
4.1CallProcessingMessageFlow
4.1.1InitialEntry
BelowistheprocedurethatsetsupaprovisionedServiceFlow(SF)inthenetwork-initiated
DynamicServiceAdd(DSA)modeduringtheinitialnetworkentryprocedure.
Intheinitialentryprocedure,theMSperiodicallyreceivesDownlinkChannelDescriptor
(DCD),Downlink-MAP(DL-MAP),UplinkChannelDescriptor(UCD),andUplink-MAP
(UL-MAP)messagesfromtheRAS,obtainsthedownlinkchannelsynchronizationand
uplinkparameters,andsetsaprovisionedSFconnection.
©SAMSUNGElectronicsCo.,Ltd.4-1
CHAPTER4.MessageFlow
Figure4.1InitialEntryProcedure
CategoryDescription
(1)~(2)TheMSsendstheRAStheRNG-REQmessagecontainingtheMACaddress
andRangingPurposeIndicationoftheMS.TheRASassignstheBasic&Primary
ManagementCIDandsendstheRNG-RSPmessagetotheMS.
(3)~(4)TheMSsendstheRAStheSBC-REQmessagecontainingthephysicalparameter
andauthorizationpolicyinformationtheMSsupports.T orequesttheauthorization
policy,theRASsendstheACRtheMS_PreAttachment_Reqmessagecontaining
theauthorizationpolicysupportvalueusingthedefaultIPaddressandUDPport
numberoftheACR.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(5)~(7)TheACRsendstheRAStheMS_PreAttachment_Rspmessagecontainingthe
supportedauthorizationpolicy.TheRASextractstheinformationreceivedfromthe
ACRandsendstheMStheSBC-RSPmessagecontainingit.ThentheRASsends
theACRtheMS_PreAttachment_Ackmessagetoexplicitlyprovidenoticationof
thestarttimeofthenextprocedure(EAPtransmission).
(8)ThesubscriberauthenticationprocedureisperformedbetweentheMSandAAA
server.Whentheauthenticationissuccessful,theACRreceivesprovisionedpolicy
informationforeachsubscriberfromtheAAAserver.
Formoreinformation,see’Authentication’.
(9)~(13)TheMSsendstheRAStheREG-REQmessagecontainingtheregistration
information(MSCapabilities,CSCapabilities,HOSupport,etc.).TheRASsends
theACRtheMS_Attachment_ReqmessagetoinquireaboutMSCapabilitiesand
CSCapabilities.TheACRsendstheRASaresponsecontainingtheresultforthe
requestedregistrationinformation.TheRASsendstheMStheREG-RSPmessage.
TheRASsendstheACRtheMS_Attachment_Ackmessagetoexplicitlyprovide
noticationofthestarttimeofthenextprocedure.
(14)~(19)TorequestDSAforPre-ProvisionedSF ,theACRsendstheRASthePath
RegistrationRequestmessagecontainingtheSFIDeld,ResourceDescription
eld(SF/CSparameter),andDataPathID(=GREKey)eldforsettingadatapath
withtheRAS.TheRASreceivesthismessage,performsadmissioncontrol,and
thensendstheMStheDSA-REQmessage.TheMSsendstheRAStheDSA-RSP
messagecontainingtheconrmationcodeastheresultoftheDSA-REQmessage.
TheRASsendstheACRthePathRegistrationResponsemessagecontainingthe
datapathIDtosetadatapathwiththeACR.TheACRsendstheRASthePath
RegistrationConrmmessage.TheRASsendstheMStheDSA-ACKmessage.
(20)~(25)ThisprocedureisusedtoassignanIPaddresstotheMSwhenitusesPMIP .Ifthe
MSrequeststheDHCPproceduretoobtainanIPaddress,theACRperformsthe
PMIPprocedure.
(26)~(33)ThisistheprocedureforallocatinganIPaddresstotheMSthatusesthesimpleIP
method.
IftheMSrequeststheDHCPproceduretoreceiveanallocatedIPaddress,theACR
allocatestheSimpleIPaddresstotheMSusingthebuilt-inDHCPserverfunctions.
Asanoption,theACRsupportstheDHCPRelayAgentfunction,which
interoperateswiththeexternalDHCPserver.
(34)~(35)TheACRnotiestheAAAserverthatthesessionhasstartedusingAAAinterface
protocol.
4.1.2Authentication
DuringInitialEntry
ThegurebelowshowstheMSauthenticationprocedureduringthe’InitialEntry’
procedure,asdescribedabove.
©SAMSUNGElectronicsCo.,Ltd.4-3
CHAPTER4.MessageFlow
Figure4.2AuthenticationProcedure(DuringInitialEntry)
CategoryDescription
(0)~(2)WhenreceivingtheMS_PreAttachment_AckmessagefromtheRASasaresponse
totheSBC-RSPmessage,theACRsendstheRAStheAuthRelay-EAP-Transfer
messagecontainingtheEAPRequest/IdentitypayloadtobeginEAPauthentication.
TheRASrelaysthereceivedEAPpayloadtotheMSusingthePKMv2
EAP-Transfer/PKM-RSPmessage.
(3)~(5)TheMSincludestheNAIintheEAPResponse/IdentityandsendstheRAS
thePKMv2EAP-Transfer/PKM-REQmessage.TheRASrelaysthereceived
informationtotheACRusingtheAuthRelay-EAP-Transfermessage.ACR
exchangestheauthenticationmessageincludingEAPpacketusingdenedAAA
interfaceprotocol.
(6)~(11)InaccordancewiththeEAPmethod,thesubscriberauthenticationprocedureis
performedbetweentheMSandAAAserver.ACRexchangestheauthentication
messageincludingEAPpacketusingdenedAAAinterfaceprotocol.
(12)~(16)Whentheauthenticationissuccessfullycompleted,theACRreceivestheMaster
SessionKey(MSK)thatistheupperkeytoprovidesecurityandprovisioned
policyinformationpersubscriberfromtheAAAserverusingdenedAAA
interfaceprotocol.TheACRcreatesanAKfromtheMSKandsendstheRASthe
Key_Change_DirectivemessagecontainingthecreatedAKContextinformation
andSecurityAssociation(SA)informationoftheMS.Moreover,theRAS
communicatesEAPSuccesstotheMSusingthePKMv2-EAP-Transfermessage.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(17)~(19)AfterEAPauthentication,theRASsendstheMStheSA-TEK-Challengemessage
toverifytheAKkeyvalueoftheMSandnotifythestartofSAnegotiation.TheMS
veriestheCMACoftheSA-TEK-Challengemessage,veriestheAKkeyvalue,
andthensendstheRAStheSAnegotiationinformationusingtheSA-TEK-Request.
TheRASsendstheMStheSA-TEK-Responsemessagecontainingnotonlythe
AKIDbutalsotheSADescriptor,whichisthenalSAnegotiationresult.
(20)~(21)TheMSrequestsaTrafcEncryptionKey(TEK)fromtheRASusingthePKMv2
Key-Requestmessage.TheRAScreatesaTEKrandomlyandsendsittotheMS
usingthePKMv2Key-Replymessage.Atthistime,theTEKissentencrypted,with
aKeyEncryptionKey(KEK).
TypesandUsesofKeys
Thetypesandusesofkeysareasfollows:
–MSK:UsedtocreateanAK
–AK:UsedtocreateaCMACkey
–KEK:UsedtoencryptaTEK
–CMACkey:UsedtoprovideintegrityfortheMACmanagementmessage
–TEK:Usedtoencrypttrafcintheairsection
DuringAuthenticatorRelocation
WhentheMSperformsCSN-anchoredHandover(HO)ortheMSinIdlemodemovesto
anotherACR’sareaandperformslocationupdate,thefollowingreauthenticationprocedure
isperformedtomovetheauthenticatorfromtheexistingservingACRtothetargetACR.
WhenthetargetACRtriggerstheMStoperformtheEAPauthenticationprocedure
againwiththeAAAserverandnotiestheservingACRoftheauthenticationresult,the
authenticatorrelocationprocedurenishes.
©SAMSUNGElectronicsCo.,Ltd.4-5
CHAPTER4.MessageFlow
Figure4.3AuthenticationProcedure(DuringAuthenticatorRelocation)
CategoryDescription
(1)~(2)TheT-ACR,whichisthenewauthenticator,exchangestheRelocationNotify/Ack
messagewiththeS-ACR,whichisthepreviousauthenticator,torelocatethe
authenticatorbyperformingthereauthenticationprocedure.
(3)~(11)Thereauthenticationprocedureisperformedinthetargetareainthesamewayas
theauthenticationprocedureduringinitialentry.
(12)~(13)TheRASsendstheT-ACR,whichistheauthenticator,theKeyChangeConrm
messagetoindicatethatthereauthenticationprocedurewiththeMShasnished.
(14)~(15)TheT-ACRexchangestheRelocationConrm/AckmessagewiththeS-ACRto
completetheauthenticatorrelocationprocedure.
(16)~(17)Afterauthenticatorrelocation,thenewauthenticatornotiestheanchorthatthe
authenticatorhaschangedusingtheContextRptprocedure.
4.1.3StateTransition
AwakeMode→IdleMode(MS-Initiated)
Ifthereisnotrafctransmissionforaspecicperiodoftime,theMStransitsfromAwake
modetoIdlemode.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
SleepMode→IdleModeTransition
TheMSinSleepmodedoesnotdirectlytransittoIdlemode.Thisisbecause,before
theMStransitsfromSleepmodetoIdlemode,itrsttransitstoAwakemodeand
requestsDREGbeforetransitingtoIdlemode.
ThederegistrationprocedurefortransitingtoIdlemodeisdividedintoMS-initiatedIdle
modetransitionandNetwork-initiatedIdlemodetransition.Thegurebelowshowsthe
MS-initiatedidlemodetransitionprocedure.
Figure4.4AwakeMode→IdleModeStateTransitionProcedure(MS-Initiated)
CategoryDescription
(1)WhentheMStransitstoIdlemode,itcreatestheDREG-REQmessageandsendsit
totheRAS.TheDe-RegistrationRequestCodeeldvalueissetto0x01.
(2)~(5)TheRAScreatestheIM_Entry_State_Change_Reqmessagecontainingthecontext
informationoftheMSandsendsittotheACR(pagingcontroller).TheACRcreates
theIM_Entry_State_Change_RspmessagecontainingActionCode(0×05),paging
information(PAGING_CYCLE,PAGING_OFFSET),andIdleModeRetainagand
sendsittotheRAS.TheRASsendstheMStheDREG-CMDmessagecontaining
theinformationreceived.
(6)~(8)IfnonetworkreentryrequestisreceivedfromtheMSuntiltheIdleResourceRetain
timerexpires,theRASperformstheDataPath(DP)ReleaseprocedurewiththeACR.
(9)~(10)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,the
accountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessage
AwakeMode→IdleMode(Network-Initiated)
ThegurebelowshowstheNetwork-initiatedidlemodetransitionprocedure.
©SAMSUNGElectronicsCo.,Ltd.4-7
CHAPTER4.MessageFlow
Figure4.5AwakeMode→IdleModeStateTransitionProcedure(Network-Initiated)
CategoryDescription
(1)~(3)IftheDormanttimerexpires,theRAScreatestheIM_Entry_State_Change_Req
messagecontainingthecontextinformationfortheMSandsendsittotheACR
(PagingController).TheACRcreatestheIM_Entry_State_Change_Rspmessage
containingpaginginformation(PAGING_CYCLE,PAGING_OFFSET)andIdleMode
RetainandsendsittotheRAS.Atthistime,theIdleModeRetaininfoissetto0x7F .
TheRASsendstheMStheDREG-CMDmessagecontainingtheinformationreceived.
(4)TheMSsendstheBStheDREG-REQmessageandsetstheDe-Registration_Re-
quest_Codeeldvalueto0x02.
(6)~(8)Ifnonetworkre-entryrequestisreceivedfromtheMSuntiltheIdleResourceRetain
timerexpires,theRASperformstheDataPath(DP)ReleaseprocedurewiththeACR.
(9)~(10)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,the
accountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessage
AwakeMode→SleepMode
OnlytheRAScanrecognizewhethertheMSisinAwakeorSleepmode.TheACR
recognizesbothstatesasAwakemoderegardlessofwhichmodetheMSisactuallyin.
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MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Figure4.6AwakeMode→SleepModeStateTransitionProcedure
CategoryDescription
(1)~(2)Ifthereisnodatatransmissionforaspecicperiodoftime(setbytheMS/RASusing
aparameter)intheMS,itstimeristimedout,andtheMStransitsfromAwakemode
toSleepmode.Atthistime,theMSsendstheMOB_SLP-REQmessagetotheRAS.
TheRASsendstheMStheMOB_SLP-RSPmessageasaresponse,andthenthe
MStransitstoSleepmode.
(3)~(4)IfincomingtrafcoccursfortheMSinSleepmode,theRASsendstheMSthe
MOB_TRF-INDmessageatthelisteningcycleoftheMS.Whenreceivingthis
message,theMSsendstheRAStheULBWRequestmessageinwhichtheBW
valueissetto0.Whenreceivingthismessage,theRASrecognizesthattheMShas
transitedtoAwakemodeandsendstrafctotheMS.
IdleMode→AwakeMode(QCS)
WhentheMSinIdlemoderespondstoapagingcausedbyincomingtrafcorwhentheMS
inIdlemodesendstrafc,ittransitsfromIdlemodetoAwakemode.
Forbothcases,theMShastoperformanetworkre-entryproceduretoenterAwakeMode.
TheMobileWiMAXsystemshouldconsidertheQCSprocedureasanetworkre-entry
methodbydefault.
Thegurebelowshowstheprocedure(QCS)inwhichIdlemodeischangedtoAwakemode
duringnetworkre-entry.
©SAMSUNGElectronicsCo.,Ltd.4-9
CHAPTER4.MessageFlow
Figure4.7IdleMode→AwakeModeStateTransitionProcedure(QCS)
CategoryDescription
(1)WhentheMStransitsfromIdlemodetoAwakemode,itcreatestheRNG-REQ
messagecontainingtheMACaddressandPagingControllerIDandsendsitto
theRAS.
Atthistime,theRangingPurposeIndicationeldvalueissetto0x00(=Network
Reentry).
(2)~(3)TheRAScreatestheIMExitStateChangeRequestmessagecontainingthe
parametervaluecontainedinthereceivedRNG-REQmessage,andsendsittothe
ACR.AftertheACRcheckstheIdlemodestateinformationfortheMS,toperform
theQCSprocedure,theACRsendstheRAStheIMExitStateChangeResponse
messagecontainingtheIdleModeRetaininformationandtheAKContextinformation
forCMACauthentication,etc.
(4)~(5)Tosetadatapath(UL)withtheACR,theRASsendstheACRthePathRegistration
Requestmessagecontainingthedatapathinformation,suchastheGREkey.As
aresponse(DL)tothismessage,theACRsendstheRASthePathRegistration
Responsemessagecontainingthedatapathinformation,suchastheGREkey.
(6)TheRASrespondswiththeRNG-RSPmessagecontainingtheHOOptimizationag
andtherelatedCID_UpdateandSA-TEK_UpdateinformationforQCS.
(7)~(8)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNT
valueupdatedbytheMS.
(9)TheRASnotiestheACRofthedatapathsetupresultusingthePathRegistration
Ackmessage.
(10)WhenreceivingtheRNG-RSPmessage,theMSsendstheBWRequestHeaderto
notifythesystemthatithastransitedtoAwakemode.
(11)~(12)WhentheIdleModeNoticationfunctionisavailable,Ifthefunctionison,the
accountinginformationisupdatedusingtheR3AAAinterfaceaccountingmessage
4-10ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
IdleMode→AwakeModeTransition
FortheprocedureusedwhentheMStransitsfromIdlemodetoAwakemode
becauseofapaging,referto‘Paging’section.
4.1.4LocationUpdate
Inter-RASLocationUpdate
ThegurebelowshowsthelocationupdateprocedureperformedwhentheMSmoves
toanotherpaginggroupinthesameACR.
Figure4.8Inter-RASLocationUpdateProcedure
CategoryDescription
(1)WhentheMSinIdlemodemovesfrompaginggroup1topaginggroup2,itreceives
thePAG-ADVmessageandthusrecognizesthatitslocationhaschanged.
(2)~(3)Torequestthelocationupdate,theMSsendsthenewRAS(RAS2)theRNG-REQ
messagecontainingtheMACaddress,LocationUpdateRequest,andPaging
ControllerID.ThenRAS2sendstheLocationUpdateRequestmessagetotheACR.
(4)~(5)TheACRsendsRAS2theLocationUpdateResponsemessagecontainingpaging
information,AKContextinformation,etc.TheRAS2checksthevalidityoftheCMAC,
andthensendstheMStheRNG-RSPmessagecontainingtheLUResponse.
(6)~(7)TheRASnotiestheACR,whichistheauthenticator,ofthenewCMAC_KEY_COUNT
valueupdatedbytheMS.
(8)TheACRsendstheLUConrmmessagetoprovidenoticationthatthelocation
updateprocedurehasnished.
©SAMSUNGElectronicsCo.,Ltd.4-11
CHAPTER4.MessageFlow
Inter-ACRLocationUpdate(AnchorRelocation)-PMIP
ThegurebelowshowsthelocationupdateprocedureperformedwhentheMSmovesto
anotherACR’sarea.
Figure4.9Inter-ACRLocationUpdateProcedure(PMIP)
4-12ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(1)~(2)Whenthepaginggroupchanges,theMSsendstheRNG-REQmessagecontaining
theMACaddress,locationupdaterequest,pagingcontrollerIDtothenewT-RAS
(TargetRAS)torequestalocationupdate.TheT-RASsendsitsdefaultACRthe
LocationUpdateRequestmessagecontainingthepagingcontrollerID.
(3)~(5)IfthereceivedpagingcontrollerIDbelongstotheT-ACR(T argetACR),itsends
theLocationUpdateRequestmessagetothepreviousS-ACR(ServingACR)via
theR4interfacetochangethepagingcontroller.Atthistime,theAPCRelocation
DestinationvalueintheLocationUpdateRequestmessageissettothepaging
controllerIDoftheT-ACR.
TheS-ACRrespondswiththeLocationUpdateResponsethatindicateswhetherto
acceptthepagingcontrollerrelocationandthecontextinformationfortheMS.
(6),
(11)~(12)
WhenreceivingtheLocationUpdateResponsemessage,theT-RASsendstheMS
theRNG-RSPmessagecontaining‘LUResponse=Success’andsendstheLU
ConrmmessagetoconrmthatthepagingcontrollerhaschangedtotheT-ACR.
(7)~(10)TheT-RASnotiestheS-ACR,whichistheauthenticator,ofthenew
CMAC_KEY_COUNTvalueupdatedbytheMS.
(13)~(16)Afterthelocationupdateconrmation,theT-ACRnotiestheFA(DPF)and
authenticator,whicharestilllocatedintheS-ACR,thatthepagingcontrollerhas
changed.
(17)TheT-ACRsendstheS-ACRanauthenticatorrelocationrequestfortheMS.
(18)~(20)WhentheS-ACRacceptstheauthenticatorrelocationrequestreceivedfromthe
T-ACR,theT-ACRrequeststhattheMSperformpagingtotriggertherelocation.
(21)~(36)WhenreceivingtheMOB_PAG-ADVmessage,theMSperformstheQCSprocedure,
anetworkreentryprocedure,withthenetwork.
(37)~(39)ThisistheprocedureforrelocatingtheauthenticatorfromtheS-ACRtotheT-ACR.
TheT-ACRtriggerstheMStoperformtheEAPauthenticationprocedureagainwith
theAAAserverandnotiestheS-ACRoftheauthenticationresulttocomplete
theauthenticatorrelocationprocedure.
(40)~(41)TheT-ACRsendstheS-ACRanAnchorDPFrelocationrequestfortheMS.
(42)~(43)WhentheMSusesPMIP ,theT-ACR,inplaceoftheMS,registersMIPtotheHA.
(44)~(45)IftheanchorDPFrelocationhasnishedsuccessfully,theS-ACRreleasesthe
existingconnectionstotheAAAserverandHA.
©SAMSUNGElectronicsCo.,Ltd.4-13
CHAPTER4.MessageFlow
Inter-ACRLocationUpdate(AnchorRelocation)-SimpleIP
Figure4.10Inter-ACRLocationUpdateProcedure(SimpleIP)
4-14ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(1)~(2)Whenthepaginggroupchanges,theMSsendstheRNG-REQmessagecontaining
theMACaddress,locationupdaterequest,pagingcontrollerIDtothenewT-RAS
(TargetRAS)torequestalocationupdate.TheT-RASsendsitsdefaultACRthe
LocationUpdateRequestmessagecontainingthepagingcontrollerID.
(3)~(5)IfthereceivedpagingcontrollerIDbelongstotheT-ACR(T argetACR),itsends
theLocationUpdateRequestmessagetothepreviousS-ACR(ServingACR)via
theR4interfacetochangethepagingcontroller.Atthistime,theAPCRelocation
DestinationvalueintheLocationUpdateRequestmessageissettothepaging
controllerIDoftheT-ACR.
TheS-ACRrespondswiththeLocationUpdateResponsethatindicateswhetherto
acceptthepagingcontrollerrelocationandthecontextinformationfortheMS.
(6)WhentheT-RASreceivestheLocationUpdateResponsemessage,itsendstheMS
anRNG-RSPmessagewith’LUResponse’setto’Fail’.
(7)~(8)TheLUConrmmessageissenttonotifythatthepagingcontrollerismaintained
intheS-ACR.
(9)~(14)TheMSperformsidlemodeexitwiththeS-ACR,andtheS-ACRinducesfullnetwork
re-entryintheMS.
(15)~(31)TheMSperformsnetworkre-entrywiththeT-ACR
(32)~(39)ThisistheprocedureforallocatinganIPaddresstotheMSthatusesthesimpleIP
method.
IftheMSrequeststheDHCPproceduretoreceiveanallocatedIPaddress,theACR
allocatestheSimpleIPaddresstotheMSusingthebuilt-inDHCPserverfunctions.
Asanoption,theACRsupportstheDHCPRelayAgentfunction,whichinteroperates
withtheexternalDHCPserver.
(40)~(41)TheT-ACRnotiestheAAAserverthatthesessionhasstartedusingAAAinterface
protocol.
Inter-ASNLocationUpdate
Theprocedureforinter-ASNlocationupdateisthesameasforinter-ACRlocationupdate.
4.1.5Paging
Pagingcanbedividedintothefollowingtwotypes:
•ByperiodicallybroadcastingtheMOB_PAG-ADVmessage,theRASnotiestheMS
ofthecorrespondingpaginggroup.Basedonthepaginginformation(PagingCycle,
PagingOffset,andPGID)receivedfromthesystemwhentheMStransitstoIdlemode,
theMScheckswhetheritspaginggrouphaschangedbyperiodicallycheckingthe
MOB_PAG-ADVmessage.
•WhentheACRhastrafctosendtotheMSinIdlemode,ittriggerstheMOB_PAG-ADV
totheRAStotransittheMStoAwakemode.
ThegurebelowshowstheprocedureforperformingpagingtotheMSinIdlemode.
©SAMSUNGElectronicsCo.,Ltd.4-15
CHAPTER4.MessageFlow
Figure4.11PagingProcedure
CategoryDescription
(1)~(2)IftheMSisinIdlemodewhenreceivingapacketthatwillbesenttoaspecic
MS,theACRsendstheRAStheMSPagingAnnouncemessagecontainingthe
MACaddressandpaginggroupID,andPagingCause(0x02)oftheMStotheRAS.
TheRASsendstheMStheMOB_PAG-ADVmessagecontainingtheinformation
receivedfromtheACR.
Then,theMSperformstheQCSprocedurewiththenetwork.Formoreinformationonthe
QCSprocedure,seetoIdleMode→AwakeModeof‘StateTransition.’
4.1.6Handover
Inter-RASHandover(HO)
Thegurebelowshowstheinter-RAShandoverprocedure.
4-16ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Figure4.12Inter-RASHandoverProcedure
©SAMSUNGElectronicsCo.,Ltd.4-17
CHAPTER4.MessageFlow
CategoryDescription
(1)~(3)T orequestahandover,theMSsendsthecurrentS-RAS(ServingRAS)
theMOB_MSHO-REQmessagecontainingtheneighborBS(RAS)IDand
handover-relatedparameters.TheS-RASsendstheACRtheHO-Requestmessage
containingtheMOB_MSHO-REQparameterreceivedandthecontextinformation.
TheACRforwardstheHO-RequestmessagetotheT-RAS(T argetRAS).
(4)~(8)TheT-RASsendstheACRtheHO-Responsemessagecontainingthecapability
informationfortheT-RAS.TheS-RASsendstheMStheMOB_BSHO-RSPmessage
containingtherecommendedneighborBS-IDs,HO-ID,andparameterresultvalue.
(9)~(13)TheMSsendstheS-RAStheMOB_HO-INDmessagecontainingtheHO-IND
typeandtargetBS-IDtoprovidenoticationthatthehandoverwillbeperformed.
TheS-RASsendstheT-RAStheHO-Conrmmessagecontainingthecontext
informationanddataintegrityinformation(e.g.,bufferedSDUSN)fortheMS.
(14)~(15)TheT-RASsendstheACR(authenticator)theContext-Requestmessagetorequest
theAKContextinformation.TheACRrespondswiththeContext-Reportmessage
containingtheAKcontextinformation.
(16)~(21)Thepathpre-registrationprocedureisperformedtosetupanewdatapathbetween
theACRandT-RAS.Inaddition,aforwardingpathissetupsothattheS-RAScan
sendtheT-RASthetrafcthatithasnotyettransmittedtotheMS.Thetrafcis
transmittedtotheT-RAS.
(22)WhentheT-RASacceptsthehandoverrequestfromtheMS,itnotiestheMS
oftheUL_MAPIEsothattheMScansendtheHORangingRequestmessage
throughtheuplink.
(23)TheMSsendstheT-RAStheRNG-REQmessagecontainingtheMACaddress,
servingBS-ID,HOindication,etc.
(24)~(26)ThepathregistrationprocedureisperformedtoexchangetheSFinformationthat
willbemappedtothedatapathbetweentheACRandT-RAS,whichwascreatedin
steps(16)to(18).(26)TheprocedureisperformedifthePathPreRegprocedure
fails.
(27)TheT-RASrespondswiththeRNG-RSPmessagecontainingtheHOOptimization
ag,CID_update,andSA-TEK_update.
(28)~(33)AftertheS-RAShassentalltrafctotheT-RAS,theforwardingpathisreleased.
(34)WhenreceivingtheRNG-RSPmessagesuccessfully,theMSsendstheRASthe
BandwidthRequest(BR)MACPDUasnotication.
(35)~(36)TheT-RASsendstheS-RAStheHO-Completemessagetoprovidenotication
thatthehandoverhasnished.
(37)~(38)TheRASnotiestheACR,whichistheauthenticator,ofthenew
CMAC_KEY_COUNTvalueupdatedbytheMS.
(39)~(41)Whenthehandoverprocedurehasnished,theoldpathbetweentheS-RASand
ACRisreleased.
4-18ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Inter-ACRHandover(HO)
WhenperformingahandoverbetweenACRsinthesameASN,thepathextensionthrough
theR6interfaceisconsidered.Therefore,theprocedureforinter-ACRhandoveristhe
sameasinter-RAShandover.
Inter-ASNHandover(HO):ASN-AnchoredMobility
Inter-ASNHOisdividedintotheASN-anchoredmobilitymethodthroughtheR4interface
andtheCSN-anchoredmobilitymethodthroughtheR3/R4interface.Thegurebelow
showstheinter-ASNhandoverprocedureintheASN-anchoredmobilitymethod.The
S-ACR(ServingACR)carriesouttheanchorfunction.
©SAMSUNGElectronicsCo.,Ltd.4-19
CHAPTER4.MessageFlow
Figure4.13Inter-ASNHandover(ASN-AnchoredMobility)
TheHOsignalingprocedureisthesameasininter-RASHO,buttheHOsignalingmessage
exchangestepsthroughtheR4interfaceareaddedbetweentheS-ACRandT-ACR(Target
ACR).
4-20ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(1)~(4)T orequestahandover,theMSsendsthecurrentS-RAS(ServingRAS)
theMOB_MSHO-REQmessagecontainingtheneighborBS(RAS)IDand
handover-relatedparameters.
TheS-RASsendstheACRtheHO-Requestmessagecontainingthe
MOB_MSHO-REQparameterreceivedandthecontextinformation.TheACR
forwardstheHO-RequestmessagetotheT-RAS(T argetRAS).
(5)~(11)TheT-RASsendstheACRtheHO-Responsemessagecontainingthecapability
informationfortheT-RAS.TheS-RASsendstheMStheMOB_BSHO-RSPmessage
containingtherecommendedneighborBS-IDs,HO-ID,andparameterresultvalue.
(12)~(18)TheMSsendstheS-RAStheMOB_HO-INDmessagecontainingtheHO-IND
typeandtargetBS-IDtoprovidenoticationthatthehandoverwillbeperformed.
TheS-RASsendstheT-RAStheHO-Conrmmessagecontainingthecontext
informationfortheMS.
(19)WhentheT-RASacceptsthehandoverrequestfromtheMS,itnotiestheMS
oftheUL_MAPIEsothattheMScansendtheHORangingRequestmessage
throughtheuplink.
(20)~(23)TheT-RASsendstheACR(authenticator)theContext-Requestmessagetorequest
theAKContextinformation.TheACRrespondswiththeContext-Report이message
containingtheAKcontextinformation.
(24)~(29)Thepathpre-registrationprocedureisperformedtosetupanewdatapathbetween
theACRandT-RAS.
(30)TheMSsendstheT-RAStheRNG-REQmessagecontainingtheMACaddress,
servingBS-ID,andHOindication.
(31)~(36)ThepathregistrationprocedureisperformedtoexchangetheSF(ServiceFlow)
informationthatwillbemappedtothedatapathbetweentheACRandT-RAS,
whichwascreatedinsteps(24)to(29).(35)~(36)Theprocedureisperformedifthe
PathPreRegprocedurefails.
(37)TheT-RASrespondsbysendingtheRNG-RSPmessagecontainingtheHO
Optimizationag,CID_update,andSA-TEK_update.
(38)WhenreceivingtheRNG-RSPmessagesuccessfully,theMSsendstheRASthe
BandwidthRequest(BR)MACPDUasnotication.
(39)~(41)TheT-RASsendstheS-RAStheHO-Completemessagetoprovidenotication
thatthehandoverhasnished.
(42)~(45)TheRASnotiestheACR,whichistheauthenticator,ofthenew
CMAC_KEY_COUNTvalueupdatedbytheMS.
(46)~(48)Whenthehandoverprocedurehasnished,theoldpathbetweentheS-RASand
ACRisreleased.
Inter-ASNHandover(Inter-ASNHO):CSN-AnchoredMobility
Belowisdescribedtheinter-ASNHOintheCSN-anchoredmobility.Theanchorfunction
isrelocatedfromtheS-ACR(ServingACR)totheT-ACR(TargetACR).
©SAMSUNGElectronicsCo.,Ltd.4-21
CHAPTER4.MessageFlow
TheCSN-anchoredmobilitymethodconsistsofthestepsthroughwhichASN-anchored
mobilityHoisperformedandtheauthenticatorandDPFanchorarerelocatedtothetarget
ACR.Forconvenience,thetriggeringofrelocationbyT-ACRisdenedasPullmode,and
thetriggeringofrelocationbyS-ACRisdenedasPushmode.TheMobileWiMAX
systemsupportsbothpullmodeandpushmode.
TheCSN-anchoredmobilitymethodcomplieswiththeMIPstandard.Theearlierstepsof
theCSN-anchoredHOsignalingprocedurearethesameasintheASN-anchoredmobility
HOprocedure.ThegurebelowshowsthestepsaftertheASN-anchoredHOhasbeen
performed.
Figure4.14Inter-ASNHandover(CSN-AnchoredMobility)
CategoryDescription
(1)~(7)ThisistheprocedureforrelocatingtheauthenticatorfromtheS-ACRtothe
T-ACR.TheT-ACRtriggerstheMStoperformtheEAPauthenticationprocedure
againwiththeAAAserver.TheT-ACRnotiestheS-RASoftheauthentication
resultstonishtheauthenticatorrelocationprocedure.
(8)~(9)TheT_ACRtransmitsthecontextinformationfortheMStotheS_ACR.
(10)~(14)TheauthenticatorandFArelocationaretriggeredandthePMIPregistration
isprocessed.
4-22ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
CategoryDescription
(15)~(16)TheS-ACRcancelsMIPregistrationoftheMSintheHA.
(17)~(20)S-ACRcarriesoutsessionreleaseprocedurewithAAAserverusingdenedAAA
interfaceprotocol.
4.1.7Disconnection
Disconnection(AwakeMode)
ThegurebelowshowstheprocedurewithwhichtheMSinAwakemodeisdisconnected
becausethepoweristurnedoff.
Figure4.15Disconnection(AwakeMode)
CategoryDescription
(1)~(3)WhentheMSinAwakemodeisturnedoff,theMSsendstheRAStheDREG-REQ
messagecontaining‘Deregistrationcode=0,’andtheRASnotiestheACRofthis.
(4)TheACRperformstheprocedureforreleasingtheMIP-relatedinformationwith
theHA.
(5)~(6)TheACRnotiestheRASoftheresultforthepowerdownoftheMS,and
releasesthedatapath.
(7)~(10)TheACRperformsthesessionreleaseprocedurewiththeAAAserverusing
denedAAAinterfaceprotocol.
Disconnection(IdleMode)
ThegurebelowshowstheprocedurewithwhichtheMSinIdlemodeisdisconnected
becausethepoweristurnedoff.
©SAMSUNGElectronicsCo.,Ltd.4-23
CHAPTER4.MessageFlow
Figure4.16Disconnection(IdleMode)
CategoryDescription
(1)~(5)WhentheMSinIdlemodeisturnedoff,theMSsendstheRAStheRNG-REQ
messagecontainingthepowerdownindicator,andtheRASnotiestheACRof
this.TheACRdeletestheinformationfortheMS.
(6)TheACRperformstheprocedureforreleasingtheMIP-relatedinformationwith
theHA.
(7)~(8)TheACRperformsthesessionreleaseprocedurewiththeAAAserverusing
denedAAAinterfaceprotocol.
4-24ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
4.2NetworkSynchronizationMessageFlow
TheU-RASFlexibleV2usesGPSforthesystemsynchronization.TheUCCMofthe
MMA-G,whichistheGPSreceptionmodule,createstheclockwiththeclockinformation
receivedfromaGPSandthendistributestheclocktoeachhardwaremoduleintheU-RAS
FlexibleV2.
ClockinformationrequiredbytheRRHissentfromtheMRA-Fthrough‘DigitalI/QandC
&M’,andtheRRHrecoversclockinformationfromthesignalstocreatenecessaryclocks.
Figure4.17NetworkSynchronizationFlowofU-RASFlexibleV2
©SAMSUNGElectronicsCo.,Ltd.4-25
CHAPTER4.MessageFlow
4.3AlarmSignalFlow
ThedetectionoffailuresintheU-RASFlexibleV2canbeimplementedbyhardware
interruptorsoftwarepollingmethod.ThefailuresgeneratedintheU-RASFlexibleV2are
reportedtothemanagementsystemviatheSNMPtrapmessage.
FailureAlarmTypes
•SystemFailureAlarms
NTPUpdateError,FanFail,TemperatureHigh,etc.
•BoardFailureAlarms
–HardwareFailureAlarms
FUNCTIONFAIL,BOARDDELETION,etc.
–SoftwareFailureAlarms
COMMUNICATIONFAIL,PORTDOWN,CPUOVERLOAD,etc.
•RRHFailureAlarms
LOWGAIN,OVERPOWER,VSWRFAIL,PLLUNLOCK,etc.
•UDA
Supportof24alarms(input)and6control(output)
FailureReportMessageFlow
ThemainOAM(UFM)collectsthefailuresdetectedfromeachboardandUDAinterface
oftheU-RASFlexibleV2andnotiesthemtothemanagementsystem.Atthistime,
itonlyreportstheupperfailureinformationbyusingthefailurelteringfunction.Ifit
receivesthecommandtoinhibitthereportforaspecicfailureorallsystemfailuresfrom
themanagementsystem,itdoesnotreportthefailurereport.
Theowsforthefailuredetectionandthereportmessageareasshownintheguresbelow:
Figure4.18AlarmSignalFlowofU-RASFlexibleV2
4-26ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
Figure4.19AlarmandControlStructureofU-RASFlexibleV2
©SAMSUNGElectronicsCo.,Ltd.4-27
CHAPTER4.MessageFlow
4.4LoadingMessageFlow
Loadingistheproceduretodownloadthesoftwareexecutionlesandthedatafromthe
IS,whicharerequiredtoperformeachfunctionofeachprocessorandeachdeviceofthe
U-RASFlexibleV2.LoadingtheU-RASFlexibleV2isperformedintheprocedure
ofinitializingthesystem.
Inaddition,ifaspecicboardismountedonthesystemorthehardwareisreset,orifthe
operatoroftheuppermanagementsystemrebootsaspecicboard,loadingisperformed.
Loadingisclassiedintotwotypes,oneisloadingbyusingitsownnon-volatilestorage
andtheotherisloadingbyusingtheremoteIS.Whenthesystemisinitializedforthe
rsttime,theU-RASFlexibleV2receivestheloadingbyusingtheremoteIS,andafter
this,savesthecorrespondinginformationintheinternalstorage,andbacksuptherecent
informationperiodically,andthenitisavailabletoavoidunnecessaryloading.Afterthe
rstinitialization,iftheinformationsavedinitsownstorageistherecentinformationby
comparingtheversion,theU-RASFlexibleV2doesnotreceivetheremoteloading.
Theloadedinformationincludesthesoftwareimagewhichisconguredwiththeexecution
leandthescriptle,thecongurationinformation,thePLDrelatedtotheoperation
parameterandvariouscongurationles.Amongthem,alltheinformationrequiredforthe
staticroutingfunctionoftheU-RASFlexibleV2issavedinitsownstorageasthestartup
congureleformat,andprovidestheinformationrequiredatthetimeoftheinitialization.
LoadingProcedure
ToperformtheloadingprocedurewheninitializingtheU-RASFlexibleV2,theloader
performsthefollowingsrst.(Pre-loading)
•Boot-up
ThebooteroftheFlashROMloadsthekernelandtheRootFileSystem(RFS)fromthe
ashROMtotheRAMDisk,andperformsthekernel.
•IPconguration
TheIPaddressinformationisacquiredfromtheashROMandissettocommunicate
withtherstuppermanagementsystem.Whenautoinitialization,U-RASFlexibleV2
acquiresautomaticallyL3informationsuchasIPaddress,subnetmaskandgatewayIP
addressforcommunicationbyusingDHCP .U-RASFlexibleV2acquiresIPaddressof
additionalinformationserver,andthenreceivestheNEIDandIPaddressofRSfrom
theadditionalinformationserver.
•Registration
TheNEisregisteredtotheRS,andtheIPaddressoftheISisacquiredduringthe
registration.
•VersionComparison
TheversionofthesoftwareimageandtheversionofthePLDsavedintheremoteIS
andintheinternalstoragearecompared,andthelocationwheretoperformloading
isdeterminedfromthat.
•FileListDownload
Thelistofthelestobeloadedisdownloadedforeachboard.
4-28ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
LoadingMessageFlow
Afterperformingthepre-loadingprocedure,ifthemethodofloadingisdetermined,the
MainOAM(ULM)oftheMMA-Gwhichperformstheoperationandthemaintenanceof
theentireU-RASFlexibleV2performsloadingbyusingtheFTPtothecorrespondingIS
(remoteIDoritsownstorage).Then,theMainOAM(ULM)becomestheinternalimage
serverforthelowerboardandperformstheloadingprocedure.
TheinformationonthesoftwareloadedintheU-RASFlexibleV2canbecheckedinthe
uppermanagementsystem.
Theloadingmessageowisasthefollowinggure:
Figure4.20LoadingMessageFlow
©SAMSUNGElectronicsCo.,Ltd.4-29
CHAPTER4.MessageFlow
4.5OperationandMaintenanceMessageFlow
AnoperatorcancheckandchangethestatusoftheU-RASFlexibleV2bymeansofthe
managementsystem.Tothisend,theU-RASFlexibleV2providestheSNMPagent
function.ThefunctionenablestheWSMoperatortoperformtheoperationandmaintenance
functionoftheU-RASFlexibleV2atremotesitebyusingtheSNMP .
Inaddition,theoperatorcanperformWeb-EMTbasedmaintenancefunctionbyusinga
WebbrowserinaconsoleterminalorIMISHbasedmaintenancefunctionbyusingtheSSH
connection.However,grow/degrow,paginginformationchangeandneighborlistchange
functionsareonlyavailableonWSM.
ThestatisticalinformationprovidedbytheU-RASFlexibleV2areprovidedtotheoperator
accordingtocollectionperiodandthereal-timemonitoringfunctionforaspecicstatistical
itemspeciedbytheoperatoris,also,provided.
OperationandMaintenanceMessageFlow
TheoperationandmaintenanceoftheU-RASFlexibleV2iscarriedoutviatheSNMP
get/get_next/get_bulk/set/trapmessagebetweentheSNMPagentonthemainOAMandthe
SNMPmanageroftheWSM.TheU-RASFlexibleV2dealswithvariousoperationand
maintenancemessagesreceivedfromtheSNMPmanagerofthemanagementsystem,
transferstheresultsandreportstheevents,suchasfailuregenerationorstatuschange,
inrealtimeasapplicable.
ThestatisticalinformationisprovidedasstatisticalleformatinunitofBIandthe
collectionperiodcanbespeciedasoneof15,30and60minutes.
TheOAMsignalowisasshowninthegurebelow:
Figure4.21OperationandMaintenanceSignalFlow
4-30ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
CHAPTER5.AdditionalFunctions
andTools
5.1RET
TheU-RASFlexibleV2cansupporttheRETfunctionbyconnectinganantennawithan
AISG2.0interfaceandanRRH-B4withanAISG2.0interface.
ToprovidetheRETfunction,theU-RASFlexibleV2sendsandreceivescontrolmessages
toandfromtheWSMthroughtheRETcontrollerwithintheRRH-B4(AISG2.0interface),
MRA-F(DigitalI/QandC&M:Optic)andRETcontrollerofMMA-G.Byusingthispath,
theWSMcancarryouttheRETfunctionthatcontrolstheantennatiltingangleremotely.In
addition,fortheREToperation,theRRH-B4providespowertoeveryantennaconnected
toit.
Figure5.1RETInterface
©SAMSUNGElectronicsCo.,Ltd.5-1
CHAPTER5.AdditionalFunctionsandTools
5.2Web-EMT
TheWeb-EMTisatypeofGUI-basedconsolterminalsandthetooltoaccesstheU-RAS
FlexibleV2directly,monitorthedevicestatusandperformoperationandmaintenance.
AnoperatorcanexecutetheWeb-EMTonlywithInternetExplorerandtheinstallation
ofadditionalsoftwareisnotnecessary.Inaddition,GUIisprovidedinHTTPsprotocol
typeinternally.
Web-EMTisprovidedtoserviceproviderasanoption.
Figure5.2Web-EMTInterface
TheWeb-EMTenablestheoperatortorestarttheU-RASFlexibleV2orinternalboards,
inquire/setcongurationandoperationparameters,carryoutstatusandfailuremonitoring
andperformthediagnosisfunction.However,thefunctionsforresourcegrow/degrowor
thechangesoftheoperationinformationconcernedwithneighborlistareonlyavailableon
theWSMmanagingtheentirenetworkandtheloadingimage.
5-2ⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription
ABBREVIATION
A
AAAAuthentication,Authorization,andAccounting
ACRAccessControlRouter
ADCAnalogtoDigitalConversion
AGCAutomaticGainControl
AISGAntennaInterfaceStandardsGroup
AMCAdaptiveModulationandCoding
APIApplicationProgrammingInterface
ARQAutomaticRepeatrequest
ASNAccessServiceNetwork
B
BIBucketInterval
BPBoardProcessor
C
C&MControl&Management
CACCallAdmissionControl
CCCallControl
CIDConnectionIdentier
CLEICommonLanguageEquipmentIdentier
CLIMCommandLineInterfaceManagement
CLLICommonLanguageLocationIdentier
CMIPClientMobileIP
CoSClassofService
CSNConnectivityServiceNetwork
CTCConvolutionalTurboCode
D
DAMDiameterAAAManagement
DCDDownlinkChannelDescriptor
DDDeviceDriver
DHCPDynamicHostCongurationProtocol
DLDownlink
©SAMSUNGElectronicsCo.,Ltd.I
ABBREVIATION
DL-MAPDownlink-MAP
DMBDigitalMainBlock
DPM-FIDCPowerModule-FlexibleIndoor
DSTDaylightSavingTime
E
E/OElectricaltoOptic
EAPExtensibleAuthenticationProtocol
EMIElectro-MagneticInterference
EMIEMSInterface
EMSElementManagementSystem
F
FAForeignAgent
FAFrequencyAllocation
FAN-FD48FAN-FlexibleDigitalunit-48VDC
FEFastEthernet
FECForwardErrorCorrection
FFTFastFourierTransform
FRPFrequencyReusePattern
G
GBICGigabitInterfaceConverter
GEGigabitEthernet
GPSGlobalPositioningSystem
GPSRGPSReceiver
GREGenericRoutingEncryption
GUIGraphicalUserInterface
H
HAHomeAgent
H-ARQHybrid-AutomaticRepeatrequest
HOHandover
HTTPsHypertextTransferProtocoloverSSL
I
IEEEInstituteofElectricalandElectronicsEngineers
IMISHIntegratedManagementInterfaceShell
IPInternetProtocol
IPRSIPRoutingSoftware
IIⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
ISImageServer
M
MACMediumAccessControl
MBB-FMobileWiMAXbasestationBackplaneBoard-Flexible
MEI-BMobileWiMAXbasestationExternalInterfaceboardassembly-Basic
MIMOMultipleInputMultipleOutput
MIPMobileIP
MLPPPMultiLinkPointtoPointProtocol
MMA-GMobileWiMAXbasestationMaincontrolboardAssembly-General
MRA-FMobileWiMAXbasestationRASboardAssembly-Flexible
MSMobileStation
MWMiddleware
N
NENetworkElement
NPNetworkProcessor
NPSNetworkProcessorSoftware
NWGNetworkWorkingGroup
O
O/EOptictoElectrical
OAGSCommonSNMPAgentSubagent
OAMOperationAndMaintenance
OCMCommonCongurationManagement
OERCommonEventRouter
OFDMAOrthogonalFrequencyDivisionMultipleAccess
OPMCommonPerformanceManagement
OSOperatingSystem
OSSMCommonSubscriptionServiceManagement
P
PBAPanelBoardAssembly
PCBPrintedCircuitBoard
PCRFPolicy&ChargingRulesFunction
PDUProtocolDataUnit
PFProportionalFair
PGIDPagingCycle,PagingOffset
PHYPhysicalLayer
PLDProgrammableLoadingData
PMIPProxyMobileIP
PP2SPulsePer2Seconds
©SAMSUNGElectronicsCo.,Ltd.III
ABBREVIATION
PPPPointtoPointProtocol
Q
QAMQuadratureAmplierModulation
QCSQuickConnectionSetup
QoSQualityofService
R
RASRadioAccessStation
RDMRASDiagnosisManagement
RETRemoteElectricalTilting
RFSRootFileSystem
ROHCRobustHeaderCompression
RRCRASResourceController
RRHMobileWiMAXbasestationRemoteRadioHead
RSRegistrationServer
RSCRASServiceController
RSSIReceivedSignalStrengthIndicator
RTCRASTrafcController
S
SAESystemArchitectureEvolution
SBCSubscriberStationBasicCapacity
SDUServiceDataUnit
SFFSmallFormFactorFixed
SFPSmallFormFactorPluggable
SFTPSecureFileTransferProtocol
SMFS-CSamsungMobileWiMAXU-RASFlexibleShelfassembly-Centermount
SMFS-FSamsungMobileWiMAXU-RASFlexibleShelfassembly-Frontmount
SNMPSimpleNetworkManagementProtocol
SNMPDSNMPDaemon
SSHSecureShell
SSLSecureSocketsLayer
T
TCAThresholdCrossAlert
TDDTimeDivisionDuplex
U
UCCMUniversalCoreClockModule
IVⓒSAMSUNGElectronicsCo.,Ltd.
MobileWiMAXRASU-RASFlexibleV2SystemDescription/Ver.1.0
UCDUplinkChannelDescriptor
UDAUserDenedAlarm
UDEUserDeneEthernet
UDPUserDatagramProtocol
ULUplink
UL-MAPUplink-MAP
ULMUniversalLoadingManagement
V
VIFVirtualInterface
VLANVirtualLocalAreaNetwork
W
Web-EMTWeb-basedElementMaintenanceT erminal
WLANWirelessLocalAreaNetwork
WSMMobileWiMAXSystemManager
©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-RASFlexibleV2
SystemDescription
©2012SAMSUNGElectronicsCo,.LTD.
Allrightsreserved.
InformationinthismanualisproprietarytoSAMSUNGElectronics
Co.,Ltd.
Noinformationcontainedheremaybecopied,translated,
transcribedorduplicatedbyanyformwithoutthepriorwritten
consentofSAMSUNG.
Informationinthismanualissubjecttochangewithoutnotice.

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