Wirelessconnections
Wirelesscommunicationisthetransferofdatawithouttheuseofcablesbutbymeansofradiowavesonly.
Dependingonthewirelessdeviceusedinyourcomputer,youmightbeabletoconnecttothefollowing
categoriesofwirelessnetworks.
WirelessLAN
Awirelesslocalareanetwork(LAN)coversarelativelysmallgeographicarea,suchasanofficebuildingora
house.Devicesbasedonthe802.11standardscanconnecttothisnetwork.
Yourcomputercomeswithabuilt-inwirelessnetworkcardandaconfigurationutilitytohelpyoumake
wirelessconnectionsandmonitorthestatusofyourconnection,sothatyoucanstayconnectedtoyour
networkwhileyouareintheoffice,inameetingroom,orathome,withnoneedforawiredconnection.
WirelessWAN
WirelessWideAreaNetwork(wirelessWAN),usingcellularnetworksfordatatransmission,enablesyou
toestablishwirelessconnectionsoverremotepublicorprivatenetworks.Theseconnectionscanbe
maintainedoveralargegeographicalarea,suchasacityoranentirecountry,byuseofmultipleantenna
sitesorsatellitesystemsmaintainedbywirelessserviceproviders.
Note:WirelessWANserviceisprovidedbyauthorizedserviceprovidersinsomecountries.
SomeThinkPadnotebookcomputerscomewithabuilt-inwirelessWANcardintegratingsomewireless
WANtechnologies,suchas1xEV-DO,CDMA,HSPA,HSPA+,3GorGPRS.Byusingthebuilt-inwireless
WANcardandtheconfigurationutilitythatcomeswithyourcomputer,youcanestablishwirelessWAN
connectionsandmonitorthestatusofyourconnection.
Bluetooth
Bluetoothisoneofanumberoftechnologiesusedtocreateawirelesspersonalareanetwork.Bluetooth
canconnectdevicesashortdistancefromoneanother,andiscommonlyusedforconnectingperipheral
devicestoacomputer,transferringdatabetweenhand-helddevicesandapersonalcomputer,orremotely
controllingandcommunicatingwithdevicessuchasmobilephones.
Tipsforusingthewirelessconnectionfeatures
Toachievethebestconnection,usethefollowingguidelines:
•Keepyourcomputerawayfromyourbody.
•PlaceyourcomputersothatthereareasfewobstaclesaspossiblebetweenthewirelessLANaccess
pointandthecomputer.
•Openyourcomputerdisplaytoanangleslightlygreaterthan90degrees.
•Ifyouusethewirelessfeature(the802.11standard)ofyourcomputersimultaneouslywithaBluetooth
option,thedatatransmissionspeedcanbedelayedandtheperformanceofthewirelessfeaturecanbe
degraded.
Note:YoucanpurchaseawirelessnetworkcardasanoptionfromLenovoat:
http://www.lenovo.com/accessories/services/index.html.
UsingthewirelessLANandwirelessWANfeatures
Toenableordisablethewirelessfeatures,dooneofthefollowing:
•ForWindows7:PressF8toopenthewirelessradioswitchboard.Turnonorturnoffthewirelessfeature
asdesired.
36UserGuide
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