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英语(3)班CONTENT143ThedevelopmentofmobilecommunicationtechnologyResearchstatusof5G.Will5Gchangepeople’slives?2Whatis5G?1ThedevelopmentofmobilecommunicationtechnologyThedevelopmentofmobilecommunicationtechnologySimulationofmobilecommunicationsystemDigitalmobilecommunicationsystem1G3G4G2GmultimediamobilecommunicationsystemBroadbandaccessanddistributionnetworksystem1980199020062011CallCallsentmessageCallsentmessagesurfinternet...Callsentmessagesurfinternet...2Whatis5G?Whatis5G?5G=Thefifthgenerationmobilecommunicationtechnology.TechnologyupgradComparedwith2G,3Gand4G,5Gisnotindependentandbrand-new.Itisacombinationandfurtherdevelopmentofpresentmobilecommunicationtechnology.Itwillbesteadierandsaferthantheprevioustechnologies.SpeedWhatis5G?Thehighesttheoreticaltransmissionspeedof5Gwillbeupto10Gbpersecond,whichwillbehundredsoftimesfasterthantheexisting4Gnetworktransmissionspeed,whichmeansthatasuperhighqualityfilminthefuturecanbecompletelydownloadedwithin1second.InternetofthingsWhatis5G?5Gtechnologywillbeabletobringthehumansocietyintoanetworksociety,whichisthenewinternetofthings.KeyTechnologiesWhatis5G?MassiveMIMO大规模多变量控制系统Ultra-denseNetwork超密集网络Novelmultipleaccess新型多址接入All-spectrumAccess全频谱接入Newnetworkarchitecture新型网络结构......3Researchstatusof5G.Researchstatusof5G.OnFebruary,2015,aBritishresearchersaid,themobiletransmissionspeedof5Gnetworkhasreached1Tbpsinstationarystate,whichis65000timesfasterthanthecurrent4Gnetworktransmissionspeed.TheUKexpectstousethe5Gnetworkservicein2020.OnMay13,2014,SamsungElectronicsannouncedthattheyhavetakenthefirstmobiletransmissionnetworkbasingon5G.InOctober2014,thepeakspeedofmobiletransmissionnetworkreached7.5Gbpsinstationarystate.Researchstatusandchallengesof5G.In2009,HUAWEIhasundertakentheresearchof5Gtechnology.Inthisyear,HuaweiandEricssonaretestingsomerelatedtechnologiesof5G.Chinawouldstrengthentheresearchof5Gtechnology.ONSeptember9,2015，Verizon,thelargestwirelesscompanyinAmerica,announcedVerizonwouldbethenextyeartotrythe5Gnetwork,andwouldofficiallybuildthecommercial5Gnetworkin2017.4Will5Gchangepeople’slives?Will5Gchangepeople’slives?low-powermassive-connectionslow-latencyhigh-reliability.......MobileinternetInternetofthingsTHANKYOUVERYMUCH！