通信革命5G英文演讲讲义

..UniversityofBristolZhangZhaoHan幻灯片1Howcould5Gchangepeople’slives?Studentnumber:1405074Name:ZhaohanScottZhangClass:6.48Goodmorning,ladiesandgentleman.Mypresentationtitleis“howcould5Gchangepeople’slife?”.Iwaswondering,didyouwanttotouchyourphonetocheckwhethertherewasanincomingcallwhenyouheardtheringtone.Ifyoudid,itmeansthemobilephoneistheveryimportantthinginyourlife.Andthewaypeoplecommunicatewitheachotherhasbeenchangeddramatically.幻灯片2EinsteinsaidthatIneverthinkaboutthefuture—itcomessoonenough.“Andhewasright.So,I'mheretoaskyoutothinkofhowthefutureishappeningnow.幻灯片3Overthepast200years,theworldhasexperiencedtwomajorwavesofinnovation.First,theIndustrialRevolutionbroughtusmachinesandfactories,railways,electricity,airtravel,andourliveshaveneverbeenthesame...幻灯片4Thenthecommunicationrevolutionbroughtuscomputingpower,datanetworks,accesstoinformationandcommunication,andourliveshaveneverbeenthesame.幻灯片5Intherecentyears,duetotheincreasinguserdemand,wirelesscommunicationnetworkshasbeendevelopingconstantly.From2Gto3G,thetechnicalrevolutionhasmadebigchangestopeople’slifeandwork.Andrightnow,4Gnetworksinmostcountrieshavealreadyadoptedinthebusiness.Fortunately,accordingtotheexistingtechnology,thehighestwirelessspeedhasalreadyreached150Mbps(megabitpersecond).ItmeansthevideosonYouTubecanbewatchedsmoothly.Averagespeedsisfasterthanmostpeople'shomebroadband.Asaresult,thereisanargumentthatitisnoneedtoupgradecurrentcommunicationsystem,becauseexistingnetworkshavealreadybeenabletomeetthedailyneeds;andtheresearchanddevelopmentexpensesfor5Gwillincreasetheconsumers’burden...幻灯片6However,ifwecomparethewirelessspeedtotheheightinreallife.From2Gto5G,youcanseethemhere.2Gislikeagrasshopper,3Gislikeabordercollie,andeven4Gisjustlikea5-storybuilding.Asthe5-srorybuildingcannotmeetourdemandinreallife,4Gwillnotmeetourcommunicationdemandinnestfewyears.Weneedkhalifatower,the5G.幻灯片7Why5Gisnecessary?Highspeedandlowlatency10–100Gbps4G’s100–1000times2–5msHugecapacityThenumberofconnecteddeviceswillreach50billionby2020.TointegrateexistingsystemsseamlesslyWi-Fi(WirelessFidelity),LTE(LongTermEvolution)andHSPA(HighSpeedPacketAccess)Ofcause,5Gcanmeetourdemand.Becauseitcanprovidethehighspeedwithlowlatency.therateof10-100Gigabitpersecond,itis4G’s100-1000times.Andwithitsultralowlatency,only2to5millisecond,itcanprovidetheexcellentuserexperience.Second,Internationaltelecomorganizationpointsoutthatthenumberofconnecteddeviceswillreach50billionby2020.Atthattime,eachpersonmayhave..thesmartglasses,thesmartphone,theiPad,thelaptop,andthesmartwatch.Alloftheseneedtotheinternet.Withthelimitedbandwidthresource,currentnetworkscannotaccommodatesomanyintelligentterminals.Andthisisalsoabigchallengefor5G.Lastbutnotleast,5Ghastheabilitytointegrateexistingsystemsseamlessly,includingWi-Fi(WirelessFidelity),LTEandHSPA(HighSpeedPacketAccess).Inthiswayitcanmaximizetheuseofexistingresourcesandincreaseredundancyinsurance.幻灯片8Whatcould5Gdo?Real-timeshortmessagesforemergencyNext,wemoveontowhat5Gcoulddo,inanotherword,how5Gcouldchangeourlives.Thankstothelowlatencyandhugecapacity,5Gwouldallow,forexample,real-timeshortmessagestobesenttocitizens’smartphonesimmediatelywhentheearthquakeorothernaturaldisastersaredetected.Citizenscanusethesesecondstoturnoffallopenflamestopreventfiredisaster,andtoopenanexit(doorsorwindows)incaseofdeformationcausedbyearthquakes...幻灯片9Anditcanalsobeusedtothehighspeedrailwayemergencysystem.Withthelowlatency‘shelp,thetraincanbrakeafter2millisecondwhentheearthquakewasdetected.幻灯片10Whatcould5Gdo?Real-timeshortmessagesforemergencyInternetofthingsairports,sensorsaroundusMoreover,theinternetofthingsisanotherbenefitfrom5G.The5G’sgoaliseverythingcouldconnecttotheinternet.Thistechnologycouldhelptheairports.幻灯片11Today,10percentofallflightscancellationsanddelaysarecausedbyunscheduledmaintenanceevents.Somethinggoeswrongunexpectedly.Thisresultsinsixbillionpoundsincostsfortheairlineindustrygloballyeveryyear...幻灯片12nottomentiontheimpactonallofus:stress,inconvenience,missedmeetingsaswesithelplesslyinanairportterminal.幻灯片13Sohowcantheinternetofthingshelphere?5Gcandevelopapreventivemaintenancesystemwhichcanbeinstalledonanyaircraft.It'sself-learningandabletopredictissuesthatahumanoperatorwouldmiss.Theaircraft,whileinflight,willcommunicatewithtechniciansontheground.Bythetimeitlands,theywillalreadyknowifanythingneedstobeserviced.Asystemlikethiscanpreventover60thousanddelaysandcancellationseveryyearinEurope,helpingsevenmillionpassengersgettotheirdestinationsontime...幻灯片14Whatcould5Gdo?Real-timeshortmessagesforemergencyInternetofthingsairports,sensorsaroundusconnectingtotheinternetHowever,the5G,theinternetofthings,cannotonlybenefitthebigcompany,butalsothecommonperson.AprofessorofMIT,bringthesensorstohishouse.Thesensorsconnectedtointernetcanfeelpeoplearoundthem,andthenopentherecorderandcameratorecordhisson’slife.Hisson,afterthefirstbirthday,wouldsaygagatomeanwater.Andoverthenexthalf-year,heslowlylearnedtherightpronunciationofwater.Sowe'regoingtolookthroughhalfayearinabout40seconds.Novideohere,