通信革命5G英文演讲讲义

..UniversityofBristolZhangZhaoHan幻灯片1Goodmorning,ladiesandgentleman.Mypresentationtitleis"howcould5Gchangepeople’slife"〞.Iwaswondering,didyouwanttotouchyourphonetocheckwhethertherewasaniningcallwhenyouheardtheringtone.Ifyoudid,itmeansthemobilephoneistheveryimportantthinginyourlife.Andthewaypeoplemunicatewitheachotherhasbeenchangeddramatically.幻灯片2Einsteinsaidthat"Ineverthinkaboutthefuture—itessoonenough."Andhewasright.So,I'mheretoaskyoutothinkof

howthefutureishappeningnow.幻灯片3Overthepast200years,theworldhasexperiencedtwomajorwavesofinnovation.First,theIndustrialRevolutionbroughtusmachinesandfactories,railways,electricity,airtravel,andourliveshaveneverbeenthesame.幻灯片4Thenthemunicationrevolutionbroughtusputingpower,datanetworks,accesstoinformationandmunication,andourliveshaveneverbeenthesame.幻灯片5Intherecentyears,duetotheincreasinguserdemand,wirelessmunicationnetworkshasbeendevelopingconstantly.From2Gto3G,thetechnicalrevolutionhasmadebigchangestopeople’slifeandwork.Andrightnow,4Gnetworksinmostcountrieshavealreadyadoptedinthebusiness.Fortunately,accordingtotheexistingtechnology,thehighestwirelessspeedhasalreadyreached150Mbps(megabitpersecond).ItmeansthevideosonYouTubecanbewatchedsmoothly.Averagespeedsisfasterthanmostpeople'shomebroadband.Asaresult,thereisanargumentthatitisnoneedtoupgradecurrentmunicationsystem,becauseexistingnetworkshavealreadybeenabletomeetthedailyneeds;andtheresearchanddevelopmentexpensesfor5Gwillincreasetheconsumers’burden.幻灯片6However,ifweparethewirelessspeedtotheheightinreallife.From2Gto5G,youcanseethemhere.2Gislikeagrasshopper,3Gislikeabordercollie,andeven4Gisjustlikea5-storybuilding.Asthe5-srorybuildingcannotmeetourdemandinreallife,4Gwillnotmeetourmunicationdemandinnestfewyears.Weneedkhalifatower,the5G.幻灯片7Ofcause,5Gcanmeetourdemand.Becauseitcanprovidethehighspeedwithlowlatency.therateof10-100Gigabitpersecond,itis4G’s100-1000times.Andwithitsultralowlatency,only2to5millisecond,itcanprovidetheexcellentuserexperience.Second,Internationalteleorganizationpointsoutthatthenumberofconnecteddeviceswillreach50billionby2020.Atthattime,eachpersonmayhavethesmartglasses,thesmartphone,theiPad,thelaptop,andthesmartwatch.Alloftheseneedtotheinternet.Withthelimitedbandwidthresource,currentnetworkscannotacmodatesomanyintelligentterminals.Andthisisalsoabigchallengefor5G.Lastbutnotleast,5Ghastheabilitytointegrateexistingsystemsseamlessly,includingWi-Fi(WirelessFidelity),LTEandHSPA(HighSpeedPacketAccess).Inthiswayitcanmaximizetheuseofexistingresourcesandincreaseredundancyinsurance.幻灯片8Next,wemoveontowhat5Gcoulddo,inanotherword,how5Gcouldchangeourlives.Thankstothelowlatencyandhugecapacity,5Gwouldallow,forexample,real-timeshortmessagestobesenttocitizens’smartphonesimmediatelywhentheearthquakeorothernaturaldisastersaredetected.Citizenscanusethesesecondstoturnoffallopenflamestopreventfiredisaster,andtoopenanexit(doorsorwindows)incaseofdeformationcausedbyearthquakes.幻灯片9Anditcanalsobeusedtothehighspeedrailwayemergencysystem.Withthelowlatency‘shelp,thetraincanbrakeafter2millisecondwhentheearthquakewasdetected.幻灯片10Moreover,theinternetofthingsisanotherbenefitfrom5G.The5G’sgoaliseverythingcouldconnecttotheinternet.Thistechnologycouldhelptheairports.幻灯片11Today,10percentofallflights

cancellationsanddelays

arecausedbyunscheduledmaintenanceevents.

Somethinggoeswrongunexpectedly.

Thisresultsinsixbillionpoundsincosts

fortheairlineindustrygloballyeveryyear.幻灯片12nottomentiontheimpactonallofus:

stress,inconvenience,

missedmeetingsaswesithelplessly

inanairportterminal.

幻灯片13Sohowcantheinternetofthingshelphere"

5Gcandevelopapreventivemaintenancesystem

whichcanbeinstalledonanyaircraft.

It'sself-learningandabletopredictissues

thatahumanoperatorwouldmiss.

Theaircraft,whileinflight,

willmunicatewithtechniciansontheground.

Bythetimeitlands,theywillalreadyknow

ifanythingneedstobeserviced.

Asystemlikethiscanprevent

over60thousanddelaysandcancellationseveryyearinEurope,

helpingsevenmillionpassengers

gettotheirdestinationsontime.幻灯片14However,the5G,theinternetofthings,cannotonlybenefitthebigpany,butalsothemonperson.AprofessorofMIT,bringthesensorstohishouse.Thesensorsconnectedtointernetcanfeelpeoplearoundthem,andthenopentherecorderandcameratorecordhisson’slife.Hisson,afterthefirstbirthday,

wouldsay"gaga"tomeanwater.

Andoverthenexthalf-year,

heslowlylearnedtherightpronunciationof"water."

Sowe'regoingtolookthroughhalfayear

inabout40seconds.

Novideohere,

soyoucanfocusonthesound,anewkindofjourney:

gagatowater.Finally,hesucceed,didn’the"Thesensorscanrecordeverytimeofus,sowecanlookbacktofindourhappiness.Ordootherusefulthings.幻灯片15ThelastpointIwanttopresentiscloudp