MGw原理精讲

SlidetitleInCAPITALS50ptSlidesubtitle32ptMGwfunctionalityToprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-092M-MGwR3BasicFeaturesAAL2switchElementManager(E)ETSIInterfaces(E)DatacomBase(E)ATMTransport(E)TDMTransport(E)UMTSIuInterfaceMediaStreamFunction(E)SS7SignalingGatewayandSignalingTransferPoint(E)SS7SignalingoverTDM(E)SS7SignalingoverATMGatewayControlProtocol(GCP)(E)SCCPAccounting(N)SCCPPolicing(N)SCCPRelay(N)(N)=newfeature,(E)=enhancedfeatureFormoredetailedinformation,pleaseseeC-MGwR3FeatureDescription.Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-093M-MGwR3OptionalFeaturesLawfulInterception(E)GSMA-interface(N)GSMHighspeeddatacomservice(N)IPTransport(N)SS7SignalingoverIP(N)VoiceQualityEnhancement(VQE)(N)(N)=newfeature,(E)=enhancedfeatureFormoredetailedinformation,pleaseseeC-MGwR3FeatureDescription.Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-094M-MGwR4EnhancedbasicfeaturesElementManagement:-CallPathTracingforIP(onET-MFGboard)-ForConfigurationManagementanewsimplifiedGUI“ObjectExplorer”isofferedformoreefficientconfigurations.ThenewGUIcanbeusedtomanagesignaling(SS7)dataGatewayControlProtocol-AddedsupportforhandlingthenewfeatureAMR2onNbMediaStreamFunction-NewversionofAdaptiveMulti-Ratecoding,AMR2-DynamicjittercompensationissupportedonacallbasisToprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-095M-MGwR4NewandenhancedoptionalfeaturesAMR2onNb(New):-Makesitpossibletohave:-TrFOforWCDMAcalls-TranscoderattheedgeforWCDMAcalls-CompressedvoiceforGSMcallsCallAdmissionControlforIPtraffic(New):-RejectsRTP/UDP/IPconnectionestablishmentrequestsbasedoncongestiondetectionintheIPnetwork.LawfulInterception(Enhanced):-ThenumberofmonitoringobjectsandmonitoringagentsinM-MGwhasbeenincreased.Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-096M-MGwR4NewandenhancedoptionalfeaturesIPtransport(Enhanced):-IPconnectiontothesiterouterisavailableviaGigabitEthernetinterface-VLANtagginginordertosupportseparationofthedifferenttraffictypesintothedifferentlogicalnetworksSS7SignallingoverIP(Enhanced):-Itispossibletosupportmulti-homingforanSCTPAssociationviatwodifferentphysicalEthernetinterfaces-MultivendorsupportforSS7SignalingoverIPToprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-097MSCServerMSCServerMGwMGwBICCTrFOLinkTFOLinkTFOLinkMSCServerMSCServerBICCBSSBSSBSSBSSOut-of-BandTranscoderControlMSMSNbAATranscoderTFO/TrFOinterworkingToprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-098R4M-MGwQoS保障机制Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-099R4MGwQoS保障机制MSCServerMGWMGW支持IPDiffserv功能MGW支持IPAdmissionControl,功能的目的是限制允许进入网络的业务量,以保证所有被允许的业务都能满足QoS的要求MGW支持Jittercompensationmechanisms,能够减少用户平面信息在核心网络传送的延时抖动MGW支持Performancemornitoring用于测量MGW的性能参数,流经MGW的业务,针对IP层性能还可收集与有效载荷、信令及操作维护信息相关的统计，最终能得到网络性能的信息。McMSCserver与MGW之间支持Loadcontrol,MGW向MSC报告拥塞情况,MSCserver根据拥塞情况降低去往MGW的话务量,以保证已有业务质量Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-0910IPadmissioncontrolPurpose–Tolimitthetrafficthatisadmittedintothenetworkinordertoensurethatalltrafficthatisadmittedmeetstherequirementsonthequalityofservice.Scheme–Staticadmissioncontrol-Setlimitstotrafficthatisadmitted–DynamicadmissioncontrolMeasurementBasedAdmissionControl(MBAC)-Monitortheperformanceofthen/wandblocknewcallattemptsincasetheperformanceistoolowToprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-0911StaticAdmissionControlDoesn’tadmittheadditionofanewIPterminationCurrent_total_IP_BWlimit(e.g:max_IP_BW)Toprightcornerforfield-mark,customerorpartnerlogotypes.SeeBestpracticeforexample.Slidetitle40ptSlidesubtitle24ptText24ptBulletslevel2-520ptLimitedInternalCBC/RXDJinZhou2005-08-0912MeasurementBasedAdmissionControlEachMGWcontinuouslymonitorsthepacketstreamsreceivedfromeveryothersite.AMGWdetectscongestionbymonitoringthepacketstre