中英对照 3G移动通信应用

如何看待3G移动通信应用一、引言3G3G3G3G5A（Anyone，Anywhere，Anytime，Anydevice，WCDMA，cdma2000，TD-SCDMA二、3G网络技术应用面临的问题从移动运营商角度来看，网络技术包括产品实现技术与网络运营技术。产品3G3G3GCDMA2GGSMCDMA3GCDMAGSM3G3G3G（例如软切换）3G3G3G业务质量保证的不确定性，长期将体现在网络的良性建设与运营。显然，这与GSM3G（CDMA）技术，理论上，在提高无线资源利用率、提升用户业务质量等方面具有优势。但是，3G3G3G与平衡。三、3G统一业务平台体系实现的难度业务平台多样化、差异化是数据业务发展过程中的一个实际情况，从业务演3GIP3G--IMS2G2G3G统一将面临一定的技术风险与实现难度。IMSOMA2G3GOSA/ParlayOMAIMSSIP3G四、3G终端市场发展的困境2G3G3G2G3G3G3G机时长等因素；另一方面，终端复杂性造成的管理成本。3GUuIOT）与标准统一（例如对功率控制的速度与精度）方面面临能力明显不足（3G384kbit/s2h）。从世界范围来看，NTTDoCoMo23G3G展的主要因素。五、挑战的思考与应对3G3G3G3G3G3G3G3G3G3GCDMA）。总之，2G3G间复杂的关系，扮演移动产业价值链的主导角色。中—英文对照翻译Howtolookat3GmobileapplicationsI.INTRODUCTIONMobileservicesinthegrowingmarketdemanddriven,3Gtechnologyisgraduallyapplied.Commercial3Gnetworkfromthecurrentsituation,theusermarketandtheexpectationsof3Goperatorsandnetworkexistsbetweenthepracticalapplicationofthegap.Intheearly3G,manymobilecommunicationexpertsandscholarsareexpectedto3Gwillbeacompletelyuniversalandflexible,diversified,individualized5A(Anyone,Anywhere,Anytime,Anydevice,Anything)methodofseamlessbroadbandaccesssolutions,theunityinthenetwork,businessintegration,servicediversity,3Gwillbetheidealchoiceforusers.However,withthespecificationdevelopment,product realization, network business, service provision and other aspects ofdevelopment,wecansee,theexistingWCDMA,cdma2000,TD-SCDMAtechnologyintheapplicationofthreearefacingdifficulties.Clearunderstandingoftheseinthemobilecommunicationsindustryforthedevelopmentofanimportantpositiontooccupythemobileoperators,hasimportantstrategicsignificance.Second,3GnetworktechnologyproblemsFromtheperspectiveofmobileoperators,networktechnologies,includingproducts,technologyimplementationtechnologyandnetworkoperations.Productstoachievetheoverallperformanceoftechnicalnetworkoperationstechnologies,andnetworkoperators,technologyandimplementationtechniquestopromotetheproduct.Thissystem,combinedwiththeunderstandingof3Gnetworktechnologytotheproblemsfacingtheapplicationofgivenanalysis.Implementationtechnologyfor3Gproducts,thebiggestproblemishowtoachievevariousperformance"soft"characteristicsofbalanceandstability.3GCDMAsystem,wirelessaccesstechnologyusedinthecomplexityofthesystemmorethan2GGSMtechnology.CDMAwirelesstechnologyinthewayofstatisticalmultiplexingofresources,theuserdistinguishtheuseofcodewords,theuseratthetime,thefrequencyspectrumwassharedcharacteristics,inordertoreducethis"common"cause"self-interference"toachievehigh-qualityvoiceusersideanddataservices,3Gnetworksneedinthephysicallayer,linklayer,networklayerintoanumberofkeywirelesstechnologies,includingpowercontrol,softswitching,multi-userdetection,smartantennas,radioresourcemanagement,andforeachofthekeytechnologiesnotonlydowntoincludemanytypesofimplementations,andbetweenthehorizontalandothertechnologiesassociated.Belowthepowercontroltechnology,forexample,analysisofproductrealizationtechnologyproblems.CDMApowercontrolsystemtoovercomethe"distanceeffect"akeytechnologyusedtoachieveabalanceofpowerbetweenusers,whileensuringthatthesystembalancebetweencoverageandcapacity.ComparedwithGSM,3Gsystemsdependentonlargepowercontrolandpowercontrolaccuracyandspeeddirectlyaffectsthenetworkperformance.Therealizationofthepowercontrolprocess,thebasestationandmobilespeedofresponseandvariabilitycharacteristicsofthethresholdistolimitthepowercontrolthespeedofobjectivefactors,theuser'smobileandwirelessenvironmentistolimitthecomplexityofthepowercontrolaccuracyoftheobjectivefactors.Sinceboththeobjectivefactorsexist,thepowercontrolin3Gspecificationscannotgiveaclearlimit.Therefore,thepowercontroltechnologyandapplicationsintherealizationwasrestrictiveanduncertainties,whichfeaturestheonehand,mapdirectlytothe3Gnetworkperformance,theotherhand,withothertechnologies(suchassofthandover)isreflectedindirectlyrelatedtothe3Gnetworkperformanceinboththenetworkperformancewillleadto"softfeatures."Technologyfor3Gnetworkoperators,thebiggestchallengeishowtoquicklyandcontinuouslytoachievethenetworkplanningofthe"direction"andnetworkoptimization,"empirically."3Gnetworkplanning,"direction"ofthedifficultyis,notonlyinplanningthetechnologyitselfcomplex,andthereistheriskofplanningeffectiveness.Amongthem,theriskwillbereflectedinshort-termandlong-termoftwophases:therecentperformanceofthenetworkcoverageholes,discontinuityofserviceprovision,servicequalityassuranceofuncertainty,thelong-termwillbereflectedintheconstructionandoperationofthenetworkhealthy.Obviously,thiseffectwiththeGSMnetworkplanningthereisabigdifference.Insummary,inthe3Gnetwork,wirelessaccessusingCodeDivisionMultipleAccess(CDMA)technology,intheory,toimproveradioresourceutilization,improveuserservicequalityhasadvantages.However,3Gtechnologyitself,thecomplexityofopentechnicalspecifications,productrealizationandotherpersonalizedfeatures,makingthe3Gnetworkinnetworkperformance,operationsmanagement,thereisanunpredictableandevenuncontrollablesituation.Therefore,3Gnetworktechnologyproblemswillbereflectedinnetworkoperationstechnologiesandproductstoachievethematchbetweentechnologies,coordinationandbalance.Third,3GunifiedserviceplatformsystemofthedifficultyachievingDiversifiedbusinessplatform,thedifferenceofthedatainthedevelopmentofabusinessreality,evolutionandbusinessdevelopmentfromabusinesspointofview,thissituationwillbebusinessdevelopment,management,increasethedifficultyofthemarketwillbereflectedtotheuserdataThefeasibilityofthebusinessroaming.3Gmobilemultimediadataservicesistypicalofthetechnicalnorms,andaunifiedbusinessplatformbusinessstructureandapplicationoftheconcept,butalsoputforwardthe3GtransmissiontechnologybasedonIPmultimediaserviceplatform,atypicalproduct-IMS.However,2Gto3Gservicesbasedonthesmoothevolutionofideasandrealizethemanytypesofexisting2Gandnew3Gserviceplatformunifiedbusinessplatform,willfaceacertaindegreeoftechnicalriskandimplementationdifficulties.Aunifiedserviceplatformsystemtechnicalriskintwoways,oneisaunifiedstandardoftheexistingbusinessarchitecturebusinessplatformcompatibility,ontheotherhandisatypicalbusinessplatformIMSbearerservicequalityassuranceanduseracceptance.Obviously,thesetwoaspectsofriskwillbeaffectedtovaryingdegrees,fromthesmoothevolutionofthebusiness.Forthebusinessstructure,itsistoprovideanopen,independentnetworkingandtechnology,scalableprogramminginterface,implementationofexistingpublicsafetycommunicationsnetworkaccess.Currently,thetwomainstreamnormsOSA/ParlayandOMA'simplementationisinthediscussion,2Gand3GserviceplatformhowtheOSA/ParlayiscompatiblewiththeOMAoperatorsneedtoconsider.TheIMSserviceplatform,IP-basedSIPapplicationseasytounity,butthequalityofthebusinesswillfacechallenges,canreallybecomea3Gvoiceanddataisexpectedtocarryaunifiedplatform,whichfullyreflectstheoperationalflexibility,transparency,Integration,needfurthervalidation.Aunifiedserviceplatformsystemtechnologywillalsobeotherrestrictionsrelatedtotechnology,suchasbillingsystemsupporttechnologyanddataservicestosupportend-to-technology.Fourth,3GterminalmarketdevelopmentdilemmaThedevelopmentof2Gdataservicesfromtheexperience,theterminalistopromotethedevelopmentofmobiledataservicesisaveryimportantfactor.Intothe3Gera,themarketdemandfor3Gterminalswillbecomeoperationalsupportwithvideo,audioasawhole,technicalsupport,compatiblewith2Gand3Gandmulti-serviceplatformtofacilitatetheagreementtocarrythemultimediadevice.Analysisofthecurrent3Gmarketsaroundtheworldshowsthat,tosomeextent,thedevelopmentofmultimediahasbecomeabottlenecktomeetthe3Gmarketdemand,mainlyintwoaspects:terminaltechnologyitself,includingtheterminalandsystemcompatibility,terminalresponsetime,longstandbybatteryterminalsandotherfactors;Ontheotherhand,thecomplexitycausedbytheterminalmanagementcosts.Technologydevelopmentfortheterminal,duetothecomplexityof3Gnetworktechnologyand"softfeatures",theterminalincompatibility(forexample,UuIOT)andthestandarduniform(suchaspowercontrolthespeedandaccuracy)isdifficulttoavoidtheproblemsfaced.Meanwhile,end-to-businessintegrationsupportrequirements,makingtheterminalbatterypowercapacitytobesignificantlylessthan(commercial3Ghandsetsfromthecurrentpointofview,the384kbit/soperation,thebatterydoesnotlastmorethan2h).Fromaglobalperspective,NTTDoCoModevelopintheterminalleader.However,nearly2yearsfromits3Gdevelopmentprocesspointofview,the3Gterminalproblemstillhindertherapiddevelopmentofthemainfactors.V.ConsiderationandresponsetothechallengeFromtheaboveanalysis,3Gtechnologyintheapplicationofthechallengefacingtheend.Fromatechnicalpointofview,thesechallengeswillhelppromotethedevelopmentofthetechnologyitself.However,fromtheperspectiveof3Goperators,3Gmakesthedevelopmentofthesechallengesthereisgreatriskanddifficulties,andevenrestrictthedevelopmentofmarketdemandfor3Gusers.Asmobilenetworkoperators,needtoformahealthy,positiveperspectiveofindustrychainthinking.Communicationsindustrygoalistomeetthegrowingmarketdemand,andweneedtothinkfirstofwhat3Guserdemand,thisdemandchainissuessuchaswhattheworlddemands.Intothe3Gerawillbefortheusermore"experience"oftheeraofadvancedtechnologyrequire