GPRS-PCU

MotorolaConfidentialProprietaryPCUConfigurationMotorolaConfidentialProprietaryBSS基站系统BSC基站控制器BTS基站MSC/VLR移动交换中心访问位置寄存器PSTN公用电话网PCU分组控制单元GGSNGPRS网关支持节点GbGrGnGGSNInternet因特网PDN公用数据网GiUmGPRSMobileSGSNGPRS服务支持节点HLR/AUC归属位置寄存器用户鉴权中心PCUOverviewMotorolaConfidentialProprietaryPCUFunction•Packetiser:–UL:RLCdatablocksconcatenatedintoLLCframes–DL:LLCframessegmentedintoRLCdatablocks•TimeslotallocationmanagerforGPRS(MAC):–AssignmentofTSstoMSsthathaverequestedadatachannel–SchedulingofRLCdatablocksonair•Errordetectorfortheairinterface(RLCARQ):–RetransmissionsofRLCdatablocksoccurwhendatablocksarecorruptedovertheairinterface.•Radiochannelmanager:–Powercontrol–TimingAdvance–SysinfomessagesgenerationMotorolaConfidentialProprietaryPCUHardwareArchitectureMotorolaConfidentialProprietaryPMCboardfrontpanelPMCBoardPMCBoardPCIMezzanineCard(PMC)BoardLocationMotorolaConfidentialProprietaryPCUDevices•PSP(PCUSystemProcessor)board•hardwarereferredtoasMPROC(Masterprocessor)board•1PSPinthePCU(supportredundancyinfuture)•PPB(PCItoPCIBridge)board•providesbridgesothattwohalvesofPCUcommunicate(i.e.,16slotsratherthan8slotsavailableforuse)•1PPBinthePCU(supportredundancyinfuture)MotorolaConfidentialProprietaryPRPPICPPMCBoardPMCBoardPMCBoardPMCBoardPMCBoardPMCBoardPMCBoardSocket2Socket1DPROCBoard(Force6750)andNIBportCON2forsoctet2TransitionModuleE1porton2B2A1B1APMCConsoleportCON1forsoctet1DLD2DLD1MotorolaConfidentialProprietaryPCUDevices•DPROC(DataProcessor)board•non-systemslotprocessorboardwhichhas2PMC(PCIMezzanineCard)sockets•subtypePRP(PacketResourceProcessor)»cellsdynamicallymappedtoPRPs»E1I/Oboard(usingPMCs)»GPRSAir-interfaceprocessing»maximumof10PRPsperPCU•subtypePICP(PacketInterfaceControlProcessor)»E1I/Oboard(usingPMCs)»maximumof6PICPsperPCU•maximumof12DPROCsinthePCUMotorolaConfidentialProprietaryPCUDevices•MSI(MultipleSerialInterface)•PMCmoduleonDPROC(PICP)•MSIterminates2E1spanlines•MSIusedeitherforLAPD/TRAUorFR(FrameRelay)•MMS(MultipleSerialInterfaceLink)•1E1spanline•2MMSsperMSI•GBL(GbinterfaceLink)•configurednumberoftimeslotsonanE1spanlinebetweenthePCUandtheSGSN•1GBLperMMS,butthenumberofMMStimeslotsperGBLisconfigurable•maximumof4GBLsperPCUMotorolaConfidentialProprietaryPCUDevices•GDS(GPRSDataStream)•TRAUdataroutebetweenthePCUandBSC•definestheconnectivityoftheroutebyspecifyingtheBSCMMSandthePCUMMSoneitherendoftheE1spanline•mayhave0-2GSLsequippedtoaGDS•maximumof10GDSsperPCU•GSL(GPRSSignalingLink)•64kbpsLAPDsignalinglinkonatimeslotoftheMMS•maximumof2GSLsperGDS•maximumof6GSLsperPCUMotorolaConfidentialProprietaryGBLandGDSConceptsAconfigurednumberoftimeslotsonanE1spanbetweenthePCUandSGSN.ThelinksbetweenthePCUandBSS.EachGDSmanagesoneE1span.Upto10GDSlinksmaybeconfiguredbetweenthePCUandBSS,whicharemanagedby1ormoreGSLs(max.2).GSLsmustbeallocatedtoLCFdevicesontheBSC.GbSGSNPCUBSCGBLGDSGSLMotorolaConfidentialProprietaryStaging•PCUStagingTool~pknaack1/pcu_staging/•CopyFlashUtility•ConsoleportcableMotorolaConfidentialProprietaryDatabaseMotorolaConfidentialProprietaryPCUBoardsDPROCDPROCDPROCDPROCDPROCMPROCDPROCDPROCMPROCPPBPPBDPROCDPROCMPROCPMC(notused)PSPPPBBridgeModuleDPROCPMCE1i/fPICPPMCE1i/fDPROCPMCPRPGBLorGSLMprocinslot7andPPBinslot10isthemustforthecagecomestoworkDPROCDPROCDPROCMotorolaConfidentialProprietaryBSCSGSNPRP1PRP9PRP2PICP2PMCPMCPMCPICP1PMCPMCPMCPMCPCUHardwareGDSUpto:270ActiveTS810StandbyTSRedundantGSLUpto:6LAPDChannelsGSLUpto:6LAPDChannelsGBLUpto:2*1984kbit/sRedundantGBLUpto:2*1984kbit/sPCUConnectionMotorolaConfidentialProprietaryPCUEquipageMotorolaConfidentialProprietaryGbInterfaceAlternativesKeypoints:PCUGbLink(GBL)InterfacederivestimingfromtheE1.PCUGBLinterfacederivestimingfromtheBSCinOptionAandB.ForOptionC,externalnetworkequipmentprovidesPCUGBLinterfacetiming.RXCDRcanalsoserveasamultiplexerformorethanoneBSCinordertoaggregateGbLinksfrommorethanonePCUontooneGbLink.AInterfaceGbBSCOMC-RBTS1BTSnRXCDRMSCGbGbOptionAOptionCOptionBPCUchg_ts_usageNAILBSC9019118MotorolaConfidentialProprietaryPCU:HardwareEquipageequip0PCUchg_audit_sched0PCUetcPCUSiteMPROCPSPDeviceequipPCUPSP0(id)chg_audit_sched0PSPetcDPROCPRPDeviceequipPCUDPROC3(id/slotno)PRP(type)chg_audit_schedPCUDPROCetcDPROCPICPDeviceequipPCUDPROC1(id/slotno)PICP(type)chg_audit_schedPCUDPROCetcMotorolaConfidentialProprietaryPCU:MSI/MMSEquipagePCUSiteMPROCPSPDeviceDPROCPRPDeviceDPROCPICPDeviceMSIDeviceequippcuMSI0(id)1(DPROCno)1(socketonDPROC)chg_audit_schedPCUMSIetcMMS0MMS1ForeachMMS:-modify_valuePCUmms_priorityetcmodify_valuePCUnbitetcmodify_valuePCUber_oos_mon_periodetcmodify_valuePCUber_restore_mon_periodetcMSIDeviceequippcuMSI1(id)3(DPROCno)1(socketonDPROC)chg_audit_schedPCUMSIetcMMS0MMS1MotorolaConfidentialProprietaryPCU:GDS/GSLEquipagePCUSiteMSIDeviceMMS0MMS1MSIDeviceMMS0MMS1GDSDeviceequipPCUGDS0(GDSid)10(BSCMMS:id1id2)00(PCUMMS:id1id2)lapdGSLDeviceequipPCUGSL0(GSLid)0(GDSid)GDSDeviceequipPCUGDS1(GDSid)11(BSCMMS:id1id2)10(PCUMMS:id1id2)trauMotorolaConfidentialProprietaryPCU:GBLEquipagePCUSiteMSIDeviceMMS0MMS1MSIDeviceMMS0MMS1GBLDeviceequipPCUGBL0(GBLid)10(1st