Policy and Charging Rules Function(PCRF)

KPCRFPRO RIPTION www.iplook.com IPLOOKTechnologie

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong IPLOOKP formation IPLOOKT o.,Limited Date(2022-01-24)

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Revisionhistory ModificationSummaryReviserReview er JohnsonLi AddVoLTEFunctionJohnsonLi 13 DoneSu con ames150221 14 DoneSu con ames06-09-21

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong 1Introduction 1 1.1PCRFoverview................. ............................................1 ...................................................................................... HighAvailability......................................................... loyment........................................................................ esandFlexibleNetworkArchitecture 125SophisticatedOperationandMaintenanceSystem 4 2Systemarchitecture............ .............................................5 2.1IPLOOKPCRFintheN .............................................5 3Functionality......................... .............................................7 31Basicfunction 7 3.1.1Definition 7 312Dependencies 9 anation tatistics s..................................................................................... anation.......................................................................... 33DedicatedBearerQoS 12 331Definition 12

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong 3.3.2Dependencies....... ...........................................13 333PrincipleExplanati 13 3.4VoLTEFunction............ ..........................................15 nition............................................................................. ncies............................................................................. anation......................................................................... ol.................................................................................... 352DependencyRelationship 17 353PrincipleExplanati ..........................................18 36Timeintervalcontrol 20 361Definition 20 362Dependencies 20 363PrincipleExplanati 20 4OperationandMaintenance 21 ty................................................................................... eliability ols.................................................................................. ......... ......... 7.1Performance................. ...........................................25 7.2Dimensionsheet........... ...........................................26

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong 8Roadmap.............................. ...........................................27 9AcronymsandAbbreviation 28

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-1-of37 1Introduction 11PCRFoverview tworkarchitecturethatsupportsLTEaccessnetw volvedPacketCore(LTC/EPC).IPLOOKPCRFb domain.Itfeaturesdistributedstructure,modular s,includingflexiblestrategycontrolability,goodi apacityandhighdegreeofintegration,opendata atamanagement,multileveldatabackupandsea gestheaccesscontrolDuringtheprocessofuse PGWobtainstherelevantinformationabouttheuser'spolicyandbillingcontrolfromPCRFor localconfigurationaccording usespacketdataservice, PGWpassestheusermessa obtainsthebillingcontrol, QoScontrolandotherpolicie ThelocationofPCRFintheEPC IPLOOK’sPCRFadoptsmodu ctionsthroughdifferent modulesItisabletointercon 3Gnetwork

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-2-of37 Name Functio EUTRAN Evolved heMobilityManagementEntity(MME)representsthe serEquipments(UEs)toaccessthe4GLTE,orEPSn erspective,signalingforaccesscontrol,locationtracki erformedviatheMME omeLocationRegister,whichstoresthesubscriptiondataa subscribersandprovidesrouteinformationforcallsfromthenetworktosubscribers HomeS dataandlocationinformationof subscrib andauthorization MSC MobileS rsionserviceandcallcontrol between CG Charging N/GGSNandtheCharging CentertosendCDRfilestotheChargingCenter heservicegatewaythatimplementsuserplanedatarouting atewayGPRSSupportNode,whichprovidesroutinganden tweenthe3GcorenetworkandexternaldatanetworkInE olvedintoaPGW(thepacketdatanetworkgateway)functio bscriberaccesstothePDNintheEPCnetwork. PCRF Impleme

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-3-of37 Name Functio PDN Provides ures n aredecoupledthroughvirtualizationTheIPLOO doperateonuniversalhardwaredevicesoftheX ualplatform 1.2.2Carrier-gradeHighAvailability TheIPLOOKPCRFhardware MsWhentheIPLOOK PCRFneedstoincreaseitsp einstalled. TheIPLOOKPCRFsupports componentsandNEs.NEs canbedeployedintheentire loymentofVMstoenhance systemreliability TheIPLOOKPCRFsupports onthroughonlinepatches andapplicationupdates 1.2.3Multi-NEDeployment NONEdesigncompactEPCsolution,allNEslik andwebmanagementfunctionsareinasingles albilling. tion: 0eNBs,upto600Mbps 0eNBs,upto6Gbps acesandFlexibleNetworkArchitectu ThePCRFsystemprovidesa dinterfaces

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-4-of37 TheIPLOOKPCRFsupports agementsystems,multiple typesofHypervisors,andmu configuredflexiblybasedthe networkrequirements. 1.2.5SophisticatedO System formsdailymaintenanceandmanagementthroug ctionscanbemaintainedonthelocalO&Mandin ows: MusestheB/Sstructure,andtheEMSusestheC ablenetworkingcapabilityandexpansionofthe nancesystem remoteandlocalaccesstothesystemsothatbo ionandmaintenancecanbeimplemented.Maint formedontheentiresystemandeachspecifiedN Multi-levelpermissionmechanismtoensuresystemsecurity. TheIPLOOKPCRFhasthedynamicmanagementpreventivemaintenance, MMLnaviga acingandfailure observation cemanagementfunctions Withthese operationandmaintenance methodspr niently.Inaddition,more functionsca TheEMSsyst rfaces,variousfunctionsand flexiblenetw inacentralizedway

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-5-of37 2Systemarchitectu 2.1IPLOOKPCRFin edint level ontechnology)andservicelevel.. Figure2IPLOOKPCRFSystemArchitecture Foradescription CRF,refertoTable2 Table y ptions Description Comprehensiveserviceoperationandmanagement variousfunctionssuchasnetworkmanagement,sy dailymaintenanceandmanagementforPCRF Networkfunctionsvirtualizationinfrastructure,which oudplatform

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-6-of37 Node Hypervisor structureandapplications)inthe NFVI Includescomputerhardware,storagehardware,and Arrangesandmanagesnetworkservices,virtualizat resourcesinthenetwork ManagesthePCRFlifecycle VIM/CMS eVIMintheETSINFVandthe infrastructure,managingand sourcesandvirtualization ,andprovidingvirtualresource dingvirtualresourcesrelatedto theVNFfortheNFVOandVNFM •TheVIM/CMSisacloudplatformmanagementfun platformGeneralapplicationsincludeTECS,VmWa

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-7-of37 3Functionality 3.1Basicfunction 311Definition policycontrolfunction,policyisthatoperatorsacc osefullyandselectivelyimposesomecontrolme ple,users'useofP2Pservicesislimitedduringb overloadofpacketnetworkresourcesPolicycon wobasicfunctionsofPCC Duringtheprocessofuseractivation/update,PGWobtainstherelevantinformationaboutthe user'spolicyandbillingcontr cordingtotheuser informationWhenauseruse heusermessage,matches thecorrespondingrules,obta otherpolicies,andexecutes thestrategy. Therearetwosourcesofpol IssuedbyPCRF PGWIthPCChitcture,policiesaredefinedbyPCRFandenforcedbPCEFIth euserinteractswithPCRF,obtainstheauthoriza rolthroughGxinterface,andprovidesittoeach ndbillingcontrol.PCRFcanissuedynamicrules, oPGW. cy IfPCRFisnotdeployedinth ementareperformedusing rulesconfiguredlocallybyPG

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-8-of37 Thepriorityofpolicyselection andlocalstaticconfiguration Rule Name PGW ption lename ificcontent Definethesame rulenameason PGW PGWlooks matchingsp rulesaccord rulenameis PCRF,and theuserdat Predefi ned Rule Group Defineasetofrul namesandspecif contents,whichar boundinauser-p ooksfor ngspecific ccordingtothe oupname byPCRF,and ssestheuser data. blefor definitions Therulenameand specificrulecontent aredefinedon PCRF PGWproce dataaccord rulenamea specificrule issuedbyP Thepriorityoftherulesissue thecaseofthesamepriority, thepriorityofdynamicrulesi

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-9-of37 3.1.2Dependencies UEeNodeB PCRFHSS √ √ √ planation triggerpolicyenforcement establishment Estab Attac Statuschange TimeRangeChange( ng) UsageStatusChange Locationchange SGSNChange(SGSN

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-10-of37 RATChange:(Radio RAN(3G), HSPAEVOLUTION RAIChange(RAIcha Conceptintroductionr Atypicalspecificationcontain Servicedataflowfilte amplebusinessflowcanbe port,protocoltype,etc Howtocontrolthebandwidthandfilterthetraffic ation:Howtochargethebusinessflow,including Rules andpredefinedrulegroups. edefinedonPCEF lenameorrulegroupnameonUPCC,whichmu onPCEF 3.1.3.4Conceptintroduction-dynamicrules Thedynamicrulesdefinedon herules,andthenamesof theissuedrulesarerandomly Qosinformationisde Serviceflowinformati Billinginformationisd 3.1.3.5ConfigurationLo

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-11-of37 AfterUPCCdetectstha ngrulesaccordingto ConditionGroupinmulti corresponding ServiceFlow,ActionGrou CCsendsanotificationtothe correspondingnotificatio Logiccanbereducedto When(Trigger) if(CditionGro en(ServiceFlow&ActionGroup&Notification) onStatistics Accordingtotheamountreportedbytheuser,PCRFwillcountitdown,calculatethattheuseris currentlyinoneofthestates thesubscribedamount service,andsendtherulesto ol,whichhasreachedthe speedlimitcontrol. 3.2.2Dependencies UEeNodeB PCR F HSS √ √ √ √

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-12-of37 3.2.3PrincipleExplan BearerQoSControl PCRFcansupportthea dbearerinitiatedbythe networkside.

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-13-of37 3.3.2Dependencies UEeNodeBM HSSIMS √√ √ √ √ planation areractivation theactivationofdedicatedbearerinitiatedbythene supportstheactivationofdedicatedbearerinitiatedbyUEandthenetworkside.IftheQCI/ARP definedintherulescarriedint differentfromtheQCI/ARPof theexistingbearer,theestabli Ifthedynamicruledoesnotco arerwillbeestablished,and therulewillbeinstalledonthe 3.3.3.2Dedicatedbearer WhenPCRFsendsaRARorCCA-UmessagetoPGWwithupdateddynamicPCCrules,a processisinitiated. cessesofdedicatedbearerareasfollows： atedbyUE/SGSN UpdatePDPContextRequestmessagesentbyS ndQoSinformationoftheUErequestIfthemes differentfromtheoriginaldedicatedbearer,itinitia updateprocess,andPG torequestanupdate QoSupdatesinitiated

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-14-of37 PGWreceivestheBeare byMME/SGW,which containstheTFTandQo messagecontainsQoS informationthatisdiffere tinitiatestheQoS dPGWsendsaCCRUmessagetoPCRFtoreq atedbyHSS QoSonHSSchanges,anInsertSubscriberData ntheModifyBearerCommandmessageisused mationtoPGWthroughSGWPGWnotifiesPC ndDefaultEPSBearerQoSAVPontheGxinterf mation(mainlyincludingAPNAMBRanddefault ARP). TFTmodificationinitia WhenthePCCrulesent ainsupdatedflow information(filter),andt originaldedicatedbearer, theTFTmodificationpro rintheoriginal dedicatedbearerwillbe r. Adddynamicrulestoa WhenPGWreceivesanewdynamicPCCrulethatcontainsthesameQCIandARP ithtitddedicatedbearer,thededicatedbearermodificati i widthvalueinthenewlyreceivedQoSwillbeacc vateddedicatedbearerbandwidthInthiscase,th tiatedbasedonthenewQoS,andtheupdatedT bearer ulesinanexistinghost CCruleneedstoberemovedfromanactivatedd modificationprocessfor bandwidthofthe dedicatedbearerwillbe fthePCCrulethat

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-15-of37 needstobedeleted,and CCrulethatneedstobe deletedwillbedeleted 3333dedicatedbearer sofdedicatedbearercanbeinitiatedbySGSN,M useCCRU/CCAUorRAR/RAAmessagestoa CCrulesonthatdedicatedbearer ction 3.4.1Definition ▪Connectuserterminals dvideoservices ▪VoLTE(VoiceoverLT 3GPPstandardandbasedon IMS(IPMultimediaS evoicecallandvideoservices toIMSnetwork 3.4.2Dependencies UEeNodeBM HSSIMS √√ √ √√ √√ √ planation structure fIMSnetworkinEPCnetworkisasfollows：

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-16-of37 sprocess scanbecarriedonindependentAPNordataAP entAPN.Thefollowingprocessdescriptiontakes anexample. IMSsignalingisusedforthe eisdividedintosignaling andvoicepackets.Signaling andvoicedataiscarried exclusively. Thewholevoiceestablishm s IMSvoicedefaultbea IMSVoiceSIPsignalingcallflow atedbearerprocess

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-17-of37 IMSvoicedefaultbearer IMSvoicededicatedbearercreationflowchart ontrol earerratethroughuserattributesthroughtherule anaccount yRelationship UEeNode PCRFHSS

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-18-of37 √√ √ 353PiilEplan

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-19-of37 Figure（3.5.3.4） tionpagecansettheuserlevel(Figure3.5.3.1), serviceruleanddistributeitthroughthejudgmen (g )

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-20-of37 3.6Timeintervalco 3.6.1Definition PCRFcanenableregistered ifferenttimeperiodsby es NodeBMMESGWPDNGWPCRF √ √√ √ 3.6.3PrincipleExplan Figure（3631）

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-21-of37 Figure（3632） ThePCRFuserinformationp tionintrstimerule,inwhich thetrstimerulewillbesent sidethetimerange,PCRF willtriggerRARUtoactively 4OperationandMa TheIPLOOKprovidesaperfe nandsupportstheunified EMStoimplementdailymaintenanceandmanagement verarchitecture,theoperationandmaintenance tenancesubsystemandaWebUIperformancem man-machineinterfaces. tenancesubsystemsupportsthreemodesofope otheOAMserverthroughaWebbrowserforma OMCmaintenancecenterforcentralizedmanag Remoteoperationand alnetworkthroughthedialupserver,andremo

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-22-of37 F e 5Reliabilitydesign 5.1SoftwareReliabi

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-23-of37 IPLOOKusesopensourced ,itisamemorybasedKey Valuedatabase,hasgreatpe /standbyredundancymode Allstatefulcontextsofcoren aseOtherservice suchasinterfacemessageprocess,mobilityma rocessandsoon essioncontrolprocessisdeployedasactive/stan edataflowduringtheserviceswappingprocedur eimmediatelyinchargeofdealingwithpackets redundancyenforcementsaredeployedfromthe kernel,watchdogisheretochecktheactiveOMprocessstatus,thisprocessisinchargeofthe heartbeatcheckwitheveryo 5.2NetworkelementRel

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-24-of37 Distributedarchitectureisap excellentquality: HighReliability SmoothlyExpansion Multilevelbackupmec Therearethreelevelbackup Level1 solutionsareappliedinbackupuserdatastoredi esynchronizedtothebackupunitinrealtime using1+1redundancymode diskarrayinRAID10mode IPLOOKbackupmechanism andstandbynodeare synchronizinguserdata(con ouldbemanagedbyasingle

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-25-of37 unifiedO&M,sowhentheac ediatelyhandlecurrent servicewithoutanyservicein 6InterfacesandPro aces,protocolsandfunctionsofIPLOOKMMEa ble43GPPRelatedInterfacesandProtocolsofIPLOOKPC tion Protoco ebetweenPCRFandPGW Diamet Rx Interfacebetw ameter3GPPTS 29272 7Dimension 7.1Performance Figure8Performance

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-26-of37 OneMMEinstancecouldsup canadjusttheprocess deploymentmodelaccording entconcurrency requirementsofdifferentsce eet Table5Dimension eRequirement：CPUThread(T),Memory(GB) User/Site <10K/4 0 10K 50K/100 50K 100K/400 100K 200K/400 200K 500K/800 500K 1M/1600 1M 2M/3200 AMF/MME/SMF 8T, 16GB 20T 32G ,4*(40T, 64GB) 8*(40T, 64GB) User <200k M 1M2M OMC 6T,16GB GB 48T,128GB User/Sitemeansmaximum umbertoserveinspecified hardwareresource //S theyhavesamedimensionmethodologies,share setsofNEsorNFstosupportrequiredcapacity ve100GBfreeHDspaceforusage ndeployment,1vCPU=1CPUThread.Sore ry(GB))isequalto(vCPU,Memory(GB)).

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-27-of37 8Roadmap

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-28-of37 9AcronymsandAb Name SecondGeneration hethirdGenerationmobilecommunications ThirdGenerationPartnershipProject ThirdGenerationPartnershipProject2 AsynchronousTransferMode AuthenticationCenter AVP AttributeValuePair BOSS Busine BSC BaseS CAMEL Custom Logic CAP CAMEL CAPEX Capital CBC Conten CCG ContentbasedChargingGateway ChargeGateway CoreNetwork CommercialOffTheShelf CircuitService CallSessionControlFunction Equipm EMS Elemen

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-29-of37 EPS Evolve EUTRAN Evolve FCAPS Fault,C ity FileTransferProtocol GatewayGPRSSupportNode GeneralPacketRadioService GlobalSystemforMobilecommunications HomeLocationRegister HomeSubscriberServer IMSSF IMSServiceSwitchFunction IMS IPMult IMSI Interna IOT InterO ITU Interna LAI Locatio MAP Mobile MME MobilityManagementEntity MultimediaMessageServices MobileStation MobileSwitchingCenter MSISDN MeanTimeBetweenFailures MeanT NAT Networ NE Networ

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-30-of37 NFV Networ NM Networ NRI Networ OperationandMaintenanceCenter OnlineChargingSystem OperatingExpense PacketDataProtoco1 PublicLandMobileNetwork PacketOverSONET/SDH PS PacketService QoS Quality RADIUS Remote RAN RadioA RANAP RadioA RNC RadioN RNS RadioN RRU RemoteRadioUnit StreamControlTransmissionProtocol ServingGateway ServingGPRSSupportNode SignalingTransport ShortMessageService ShortM SMTP Simple SS7 Signali

IPLOOKTechnologiesCo,Limited Suite1101,OnHongCommercialB Kong Page-31-of37 TCP/IP Transm TECS TulipE UMTS Univers