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1、UNIT7 MobileBroadbandImportantVocabularyEthernetn.以太网versionn.版本,翻译hotspot公用无线局域网站点Wi-Fi(Wirelessfidelity)无线局域网WhatisWi-Fi?Wi-Fiisthetrademarkforthepopularwirelesstechnologyusedinhomenetworks,mobilephones,videogamesandotherelectronicdevicesthatrequiresomeformofwirelessnetwor
2、kingcapability.Wi-FiOperationaladvantagesWi-Fiallowslocalareanetworks(LANs)tobedeployedwithoutcablingforclientdevices,typicallyreducingthecostsofnetworkdeploymentandexpansion.Spaceswherecablescannotberun,suchasoutdoorareasandhistoricalbuildings,canhostwirelessLANs.Advantages
3、ofWi-FiWirelessnetworkadaptersarenowbuiltintomostlaptops.ThepriceofchipsetsforWi-Ficontinuestodrop,makingitaneconomicalnetworkingoptionincludedinevenmoredevices.Wi-Fihasbecomewidespreadincorporateinfrastructures.Wi-Fiiswidelyavailableinmorethan220,000publichotspotsandtensofm
4、illionsofhomesandcorporateanduniversitycampusesworldwide.Wi-FiProtectedAccessencryption(加密）isnoteasilycrackedifstrongpasswordsareused.NewprotocolsforQualityofService(WMM)makeWi-Fimoresuitableforlatency-sensitiveapplications(suchasvoiceandvideo).P2P（peer-to-peer）点对点技术VOIP(Voi
5、ceOverInternetProtocol)因特网声传协议GPRS（GeneralPacketRadioService）通用分组无线服务GlobalSystemforMobileCommunications(GSM)全球移动通信系统WAP（WirelessApplicationProtocol）无线应用协议integratev.综合,使成整体,使结合;moderateadj.适度的,中等的,稳健的Intranet企业内部互联网MobileBroadbandMobilebroadbandisthenameusedtodescribevariou
6、stypesofwirelesshigh-speedinternetaccessthroughaportablemodem,telephoneorotherdevice.Variousnetworkstandardsmaybeused,suchasGPRS,3G,WiMAX,UMTS/HSPA,EV-DOandsomeportablesatellite-basedsystems.Whatkindofdeviceusemobilebroadband?laptops,PDAs,BlackBerrysandSmartphonesTheservicec
7、analsobeusedondesktopPCsWhataremobilebroadbandfeatures?CheckemailSurftheinternetAccessyourIntranetConnecttoWi–FiHotSpotsblackberryTheBlackBerryisawirelesshandhelddeviceintroducedin1997whichsupportspushe-mail,mobiletelephone,textmessaging,internetfaxing,webbrowsingandotherwir
8、elessinformationservicesMobilebroadbanduse:laptops,PDAs,BlackBerrysandSmart
