江苏联通SGSN培训

[e-mail]/Gpinterface5.GainterfaceIII.BasicSignalingFlowIV.TroubleshootingSystemOverviewBSSBTSBSCPCUPSTNISDNInternet,IntranetMSC/VLRGMSCHLR/AUCSGSNCGBGGGSNGPRSbackboneOtherPLMNSS7–SGSNfunctioninGPRSnetwork–GPRSStandardProtocolInterfaceSystemOverviewBSCPCUMSC/VLRCAMELSCFHLR/AUCSGSNCGGGSNGPRSbakboneOtherPLMNSS7GGSNSMSEIRGbGpGaGnGsGdGeGrGfGiInternet165Wap/MMSATM交换子系统Gb接口处理子系统GTP-C处理子系统数据转发子系统计费子系统N7信令处理子系统操作维护子系统时钟子系统GSN/CGBSSOMC/LMTBITS/LINE1/2HLR/MSCSystemOverview–SGSNSoftwareStructure600mm1BasicSub-RackMandatory1SwitchingSub-Rack.MandatoryExpansionSubRack.Optional2200mmPSM0PSM1PSM2PSM3FirstCabinetofUSP4SGSN4PSMSubRackperCabinetatMax.SystemOverview–SGSNHardwareStructure0123456789101112131415161718UPIUUPIUUBIUUACUUBIUUACUUBSUUBSUUPIUUPIUUPWRUPWRUFCUUFCUURCUURCUUCDRUCDRUGFUUGFUUALUUPWRUPWRRearSlotFrontSlotForUFCUOnly(0-5)FixedConfigurationSystemOverview–SGSNHardwareStructure1.SwitchSub-rack–UFCUrealizestheinterconnectionbetweenthebasicsubrack,theswitchsubrackandtheexpansionsubrack.–UGFUrealizestheexternalinterfacesofGn/Gpandthetransferofuserplane.0123456789101112131415161718UEPIUEPIUEPIUEPIUEPIUEPIUBIUUACUUBIUUACUUFSUUFSUUCKIUCKIUPWRUPWRUGBIUGBIUGBIUGBIUSPUUSPUURCUURCUUOMUUOMUUGTPUGTPUALUUPWRUPWRRearSlotFrontSlot2GserviceboardUCKIisfixed.FixedConfiguration–SGSNHardwareStructure2.BasicSub-rackSystemOverview–ContainsO&Mboards:UOMU–RealizetheclockextractwithUCKIboards–Containsserviceboards:UGBI/USPU/UGTP0123456789101112131415161718UEPIUEPIUEPIUEPIUEPIUEPIUBIUUACUUBIUUACUUEPIUEPIUEPIUEPIUEPIUPWRUPWRUGBIUGBIUGBIUGBIUSPUUSPUURCUURCUUSPUUSPUUGBIUGBIUGBIUALUUPWRUPWRFixedConfiguration–SGSNHardwareStructure3.ExpandedSub-rackSystemOverviewRearSlotFrontSlotTypical2GexpansionSubrack,6+1forUGBI,togetherwith2+2USPUCabinet1Cabinet2UFCU/UPIUPSMPSMPSMPSMPSMPSMFiberFiberURCUURCUURCUUOMUURCUURCUURCUPSMSystemOverview–SGSNHardwareCommunication(1)BetweensubracksM/S-LINKP0P1P2P3P0P1P2P3ActiveUPIUStandbyUPIUM/S-LINKP0P1P2P3P0P1P2P3ActiveUBIUATM155StandbyUBIUATM155ActiveUBSUATM155StandbyUBSUATM155ActiveUBIUATM155StandbyUBIUATM155ActiveUFSUATM155StandbyUFSUATM155PSMswitchingsubrackPSMservicesubrackSystemOverview–SGSNHardwareCommunication(2)FiberconnectionUCKIUBIUUPIUUPIUUPIUPSMservicesubrackPSMservicesubrackPSMservicesubrack......ExternalclockinputPSMswitchingsubrackInternalclockbusSTM-1STM-1STM-1SystemOverview–SGSNHardwareCommunication(3)ClockSchemeAgendaI.SystemStructureI.SoftwareStructureII.HardwareStructureII.SGSNConfiguration1.HardwareConf2.Gbinterface3.Grinterface4.Gn/Gpinterface5.GainterfaceIII.BasicSignalingFlowIV.MaintenanceandtroubleshootingHardwareConf•BasicConfiguration：–System:•SETOFISETSIGATTR/ADDN7OPC/ADDSCCPOPC–Sub-racks:•ADDSUBRACKSwitchsubrack–Boards:•Thesub-boardofUEEC/UAIC/USS7couldbeaddedsametimewithfrontboards.•ThebackboardofUPIU/UEPIcouldbeaddedwiththefrontones.•ExceptthestandbyUGBIboard(N+1backup)needtobeaddedseparately,otherstandbyboards(1+1backup)willbeaddedtogetherwiththeactiveone.•UPIUbackofUGFUneedtoconfiguretheportproperty:SETUPIU_PORTGbInterfaceConf•GbinterfaceprotocolstackRelayNSGTP-UApplicationIPSNDCPLLCRLCMACGSMRFSNDCPLLCBSSGPL1bisRLCMACGSMRFBSSGPL1bisRelayL2L1IPL2L1IPGTP-UIPUmGbGnGiMSBSSSGSNGGSNNSUDPUDPBSSGPRelayGMM/SM/SMSLLCRLCMACGSMRFGMM/SM/SMSLLCBSSGPL1bisUmGbMSBSSSGSNNetworkServiceRLCMACGSMRFL1bisNetworkServiceUserPlaneControlPlaneGbInterfaceConf•GbinterfaceprotocolstackGbBTSBSCAbisBSSSGSNL1（PHY）NSBSSGPLLCGMM/SMNSFRBSSGPLLCControlPlaneUserPlaneSNDCPPhysicallayerFRNSBSSGPPCUPhysicallayerFRLLCSNDCPUEPIUFEUNSBSSGPUGBIGMMUSPUGbInterfaceConf•ConfigurationConcepts:•BC:thebearerchannelofFRcorrespondingtothetimeslotgroupofE1/T1,thetimeslotdistributionmustbeconsistentwithPCUside.•PVC:theBCcontainssomePVCsdistinguishedbyDLCI,theDLCIvaluemustbeconsistentwithPCUside.•NSVC:virtuallinkprovidedbyNSlayerforBSSGPlayer,theNSVCvaluemustbeconsistentwithPCUside.•NSE:NSEmanagesagroupofNS-VCs,andcorrespondingagroupofcells.•BVC:BSSGPvirtualconnectionisusedintheBSSGPlayer,classifiedtoSigBVC,PTPBVCandPTMBVC.OnePTPBVCcorrespondstoonecell.GbInterfaceConfNSE0NSE1BSS0BSS1460010001010001460010001010002460010001010003460010002010001460010002010002460010002010003Port0Port11234SGSNUGBIUGBIUGBIUEPIUEPIUEPI0/00/10/2•GbinterfaceExampleGbInterfaceConfStepActionCommand1Addtherelationboards:UGBIN+1backup,thestandbyoneshouldbeaddedADDBRD2AddtheE1frametype(CRCorDF)andcodetype(HDB3).ADDE1T1CFG3ConfiguretheE1link:Clocklevel,backuptypeofUFEUPlusADDUEPIUTPICFG4AddtheBC:TSdistribution;PCUasDTEandSGSNasDCE,ifthroughFR,bothDTEADDBC5AddtheNS-VC,theDLCIaddedalso(NSVC/DLCIconsistentwithPCU)ADDNSVC6AddtheNSE:BSSIDusuallysamewithNSEADDNSE•ConfigureCommands:GbInterfaceConf•Maintenance:–BSSGPlayer:DSPSIGBVC:;–NSVClayer:%%DSPNSVC:SRN=0,SN=1;%%SubNo.SlotNo.E1/T1portBCNSVCidentifierValidstatus01101020UNBLOCKED01301040UNBLOCKED–BClayer:%%DSPBC:SRN=0,SN=1,PN=0;%%SubrackNo.Slot