基于mpls的3g核心网qos的探索与分析

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1、杭州电子科技大学硕士学位论文ABSTRACTToadapttothesharpincreaseofmobileusersandnewservicerequirements，andtomeetthedemandofmorehilghspeedservicesandmultimediaservices，the3Gappeared，谢tllthecharactersofhighservicequality,highspectrumefficiencyandstrongabilitytomulti-serviceenvironmentand80on．Thetrendofthe3Gn

2、etworkistorealizethetransmissionmechanismbasedonIPanddevelopIPmultimediaservices．Thiskindofnewandopened3GnetworkstructurecallmakenetworkoperatorsgetnewprofitsrapidlybytheservicesandapplicationsbasedonIP．Butitalsoposesnewchallegestonetworkoperators，themostimportantofwhichishowtoprovidehighe

3、rQoStomeettheever-increasingservicedemandsandprovidedifferentservicesfordifferentkindsofusers．nearchitectureof3GnetworkmainlyconsistsofradioaCCes8networkandcorenetwork,butestablishingastrongandhigh-efficiencycorenetworkwillmakemostlyfordrivingtoprovidevalue，-addedservicesandextrafunctionsi

4、n3Gnetwork．Therefore，itissignificanttorearchonQoSinthe3Gcorenetwork．Thedesignschemeisproposedbasedonthesedemands．Firstly,theIPQoSmechanismissummarized，andthenetworkstructureandend—to-endQoSmechanismoftheWCDMAtechnologyrepresenting3GPPareintroduced．AftertheadvantagesofMPLStechnologyinresolv

5、ingWCDMAcorenetworkQoSisanalyzed，thispaperindetailexpondestheprincipleandcoretechnologiesofMPLS．TheworkingprincipleandmechanismofMPLSTEasanindirectmeansofsupportingQoSarestudied．TheadvantagesofcombiningMPLSandDifP3ervinprovidingQoSalediscussed．Toreslovethekeyissueofcombination，twosolutions

6、ofQoSguaranteeareproposed．Secondly,basedonthetheoreticalsystemofMPLS，TE，DiffServandtheOoScharacteristicsof3Gbusiness，thispaperputsforwardtheMPLS—DiffServarchitectureinWCDMAcorenetworktoachieveQoS；itproposesthesystemmodelonthebasisoftheMPLS—DiffServarchitecture,anddescribestheinteractionbet

7、weeninternalmodulesofthesystemmodelandtheprocessofforwardingpacket；itfocusesontheimplementationofQoSmappingmechanismbetweentheDiffServmodelandtheMPLSmodule，andextendstheLDPprotocoltosupportDittServ；itdoesdetaileddesignonthesystemrealizationofMPLSTE．Finally,bas