無線通信G介紹英文論文ABrief Introduction About G Network

ABriefIntroductionAbout5GNetworkJiaAbstractWithrapidofofFifthGenerationwirelesssystemstartedtoemerge.Butknowlittle，includingsomeaspectsof5Gcommunicationwhatthebuildingblocksof5Gsystemconcept,maintothem.Aofcountriesandworkingon5G,5Gdevelopmentinisofconcernitsinsuchacompetitiveenvironment.Keywords:CoreSolutions,InTableofContent1.Introduction(Fifth-generationmobilecommunications)anewofcommunicationmobilefor2020,withhighspectralefficiencyandlowpowerinoftransferresourceimprovementoversystem10times,itscoverageperformancewillbesignificantlyimproved.willintegratedwithanewubiquitousnetwork,tomeetmobileInternettraffic1000xdevelopmentneedsyears.[1]thisIwillresearchdevelopmenthistory,whatofcore5Gconcept,whataremaintothemfirstly.therestofIwillhowdevelopmentinrecentyearsandmyconclusion2.ResearchanddevelopmenthistoryFebruary2013,EUannounceditwouldeurostothedevelopmentofmobileplanstolaunchamature2020.[2][3]May13,2013,SouthKorea'sCo.,thatitthe(5G)technology,beginin2020commercialization.at1Gbpspersecondtheupto2km.InthecurrentEvolution(4GLTE)andofonlythePriorthebottleneckiswidelyatechnicalwhileSamsungisuseofarrayelementscrackproblem.withthetransmissionspeedofinSouthKorea,5Gishundredsofthishigh-definition(HD)movieneed10seconds.2009,hasthetechnologies,andtheprototypeofbaseinNovember6,2013,Huaweiitwouldinthethatuserswillenjoy20Gbpsnetworksin2020.May8,2014,theJapaneseoperatorNTTsixmanufacturersworkbegantimesexistingnetworksthecapacityofhigh-speedisexpectedOutdoortocommencein2015,andexpectsin2015,British"DailyreportedthatBritish5Gandfordatatransmissionwithinofistimesnetwork,ina30secondsinin2020officiallyputcommercialuse.[4]February2015inthenews,IMT-2020(5G)topromote(hereinafterreferredtoaconferenceinBeijing5GconceptofWhitePaperfromInternetandnetworkingmainlyofbusinesschallengesofstartingcontinuouswideareahighreliabilityfourofhighlowlowlatencythecombinationofkey5G"flag+asetofdefinition.EuropeanEconomicandSocialforDigitalFurusawaofficiallytheofpartnershipstorightspeakinoftechnologyinEuropeinthesaidthat,visionofpartnershipnotfiber,ornetworkwithwillthesoftware-defined(SDN),networkvirtualization(NFV),Mobile(MEC)andComputingtechnology.spectrum,ofpartnershipwillThenewThenewnetworkNewmulti-accessthenewnetworkarchitecture5Gofmegahertz60higherwillbeaccount.Aofcountriesand5Gnetworkwill2025.3.CoreConceptis5G?Imanypeoplewillwhen5G.frommeaning,5Grefersthefifthofcommunications.howshoulditdefine?Currently,theglobalindustryfornotyetChinaIMT-2020Whiteconsiders5G,capabilitiestechnology,5G"agroupofkeytoacommondefinition.Amongthem,rateexperience"isasetoftechnologies,includingmulti-site,full-spectrumnewRecallingofdevelopmentofcommunications,systemsbesexualandsignsoftechnologies.Wherein,2Gdigitaldataservices;totechnologycharacterizedtotensofMbps,services;4GOFDMAtheuserpeakrateofsupportavarietyofbroadbandgenerationscommunications,userexperience,densityofconnections,delay,willHowever,unlikethecaseintodifferentrate,believetheuserperformanceindicators,ittrulyreflectsavailabletouser,andtheclosestBasedtechnologyneedsofsceneusershouldreachmagnitude.scenesofdemands5Gallscenarios.Inaddition,currentwirelesshasdiversifieddevelopmentinmulti-accesstechnology,network,thearchitecture,istobemaincanplayaroleintechnology[5]4.ChallengesSolutionsthisIsomeobservedresearchchallengesandinthedevelopmentsomemayfuturetrendsandsolutionsthatimprovedwhilemeetingGbpsuserexerperience5GTransportChallengeorderunderstandthechallengesonemustmayevolvetheradioinofscenarioswhichnetworkswillhavetosupport.[6]Atotaloffivefuturehavebeenfast(userstoenjoyinstantaneousnetworkinacrowd,.,Figure-5GConcepteffectivesupporttoInternetofsuperandexperienceofintroducesa.ofthesechallenges.,highdatausersmobility)aremoretraditionalinthecontinuedenhancementexperienceincreasingtrafficmobility.Twochallenges,verylowlatencyverylowenergy,ofdevices,areassociatedwiththeofcommunicationsareas.Futuremaywithofdifferenttothenetwork.InMETISspecifictestcaseswereontothefivescenarios.casessampletheoffuturetechnicalenablersfulfillquirementsforthesetestcasesareitthatapplicationstowillbedefiningthe5GcasesmeansalsodefiningtoWhileMETIS[7]onaccess,thedefinedfor5GalsoSranslatesatransportthatneedssupportmorehigherhugetrafficvolumes.greatwillrequirementsonthetransporttoprovidehighspecificInaddition,experiencesuggestsinofreconfigurabilityofthetransportresources.thecontrary,otherchallengesareexpectedtoplayasfortheforthecaseofverylowverylowcostmassiveofdevices.Aproperlydimensionedbasedwirelessisablelow.,delayoftheisusuallyalmostaddition,whileaofdeviceswillcreatechallengefornetwork,itwillmostsignificantlyimpactthetransport.thetrafficgeneratedbyaofawillalreadyinThethreearesummarizedwiththeircorrespondingcases.Notethatdoesallthecasesbutonlyposetothewillidentifythetransporttechnologies.5GTransportChallengeandsomeSolutionsofaoftransportoptionsfor5Gnetworks.Abeincell(Fig.Thesmallcellsegmentaggregatesthetrafficto/fromwirelesssmallcellsmetro/aggregationDifferentsolutionsintermsof.,wireless).,tree,ring,mesh)arepossibledependingonthespecificwirelessThetheotherhand,different.,and/oramongthenetwork,theviaservicenodeforinterconnectiondifferentdomains).Formetro/aggregationonepromisingsolutionismultiplexingcentricInsuchanetwork,packetaggregationplaceedgesof.,attheservicewhileatcenter.,betweenaccessmetrorings)donecompletelyindomainthankselementssuchasandreconfigurableopticaladd-dropIthasalreadybeenDWDM-centriccapacity(inthetenstoofGbps)andenergytheirpacket-centric.,withatoftheFortheDWDM-centricmetro/aggregationmaygoodfortransportnetworks.[10]MachineMachineCommunicationtowebecomeandpowerful.wirelesswillserveonlyusersthroughsuchassmartphones,orgameconsolesbuttremendousofothersuchcars,smartmonitoringdevicesappliancesthatwouldsoonrequireaconnectiontheInternet.Theofwillataspeed.Itisestimatedthattrafficwillincrease2012and.[11]communicationtodayinfleetmonitoringorvehicletracking.includeofe-healthapplicationsdevices,forinstancenewelectronicapparatustoaddressofpeoplefromdiseaselikeAlzheimer’s,rwearablemonitors.Suchwouldpatientmonitoringandtoobservepatientsconstantlyandtheminaway.Itwillalsothecostsoftreatment,asitbewithoutneedofgoingtohospital.monitoringusingaBodyArea(BAN),whereaofsensors,bothon-skinandrecordthe’shealthreportstoadoctor,willsoonaimportantpartinordertoe-health5GwillneedtoprovidemeetQualityof.,ultralowlatencylosslessvideocompressionforimplementsecurityFurthermore,workwilltobedoneefficientlymanagetodiversityoftrafficrangingthesentbyqualitytransmission.CoreNetworkVirtualisationMovingtowardsnotinRadio(RAN)innewofdevices.Thetrendtodecouplehardwarefromone.SoftwareNetworking(SDN)standardisedbyOpenNetworkingFoundation(ONF)ofthecontrolanddataplane[12].Consequently,thankstoprogrammability,configurationofforwardingcangreatlyautomated.Moreover,effortsdefining(NFV)arebyincludingequipmentwithinETSI.[13]IntroducingnewsolutioninstallingdevicewithaparticularsolutionswouldimprovethenetworkadaptabilitymakeitAsaresultofsimplerexpectmorenewfeatures.SummaryIlistapartialofchallengesof5Gsolutionsinbeforemakinga5Gbeovercome,itrequiresfrontline5.5GInChinaWhitepaperFebruary2015，ChinaWhitepaperaboutconcept5G.Itinstantlymakepeopleareconcernedabout5G.Peopleeagerto5GnetworkassoonasWhiteangles,competencies,characteristicsof5Ginterpreted.Attime,isIMT-2020topromotethegrouplastyearafterpublicationofWhite5Gandneedsanothermasterpiece.Theforeseeablefuture,theChinesedevelopmentofamoreopenattitude,withjointeffortsofindustry,andwillanglobal5Gglobalindustrywillalsobeunified5Gstrideforward.5Gstandardswillactivelyindevelopmentof5Gstandards,willtofurtherenhancethepatentpositionininternationalcommunicationstandards,forbigthehasofastrategicshifttoChina,3Gstandardsexperiencewillwinpatentsindevelopmentofstandardtime,theChinatocreatetheChinacommunicationscompaniesFebruary2015,Telecommunicationwork,clearlyIMT-2020workplan:willIMT-2020internationalstudiesin2016willbecarriedtechnicalperformancerequirementsevaluationbytheoftocollectingcandidatetocompletestandardsbyof2020.Itworthnotingthat,inHuawei,ZTEChinesetelecommunicationssuchasEricssonveterancommunicationscompaniesanimportantHuaweibetween2013to2018,fiveisho$600million5GZTEprogress.FollowingtheoftoMIMOarraymassivefieldtest,ZTEindependentlydevelopedtheproposedsuperuserstoaccessMulti-UserSharedotherinPre5GphaseisbeHuawei2015,willtheofaboutindevelopmentbudget,or$million,developmentof5Gcompany'scommitment$investmentin5Gmunicationsstandard,isexpectedintouse.[15]Summaryneedstoitsinthe5Gcommunicationscompaniesareveryhard,infuture,China'sR&Dlevelwillleadothercountries.6.Conlusionthis，Ipresentedsummaryofin2020andfutureoftheInternetandnetworkingwillonsupportingthewidehotlowlowconnectionreliabletechnicaltheoflargearray,multi-site,full-spectrumnewnetworkarchitectures,suchasthroughtheevolutionofnewairtechnicalroutesexperience,toinserviceundervariety.therearealotofunresolvedAlsoincludehowtomanychallenges.withpreviousofcommunicationsnottoincreasethetheuserwithtrafficthenumberofaseriesofinterwovenproblems.Asmuchcosts.Thisnetworkmustbeinareenthusiastic,Chinaneedsacceleratethepaceofgetridofoncompanies.5GstudyconductedinareChinaneedsacceleratethe