Dependingonthewirelessdeviceusedinyourcomputer,youmightbeabletoconnecttothefollowing
categoriesofwirelessnetworks.
WirelessLAN
Awirelesslocalareanetwork(LAN)coversarelativelysmallgeographicarea,suchasanofcebuildingora
house.Devicesbasedonthe802.11standardscanconnecttothisnetwork.
Yourcomputercomeswithabuilt-inwirelessnetworkcardandacongurationutilitytohelpyoumake
wirelessconnectionsandmonitorthestatusofyourconnection,sothatyoucanstayconnectedtoyour
networkwhileyouareintheofce,inameetingroom,orathome,withnoneedforawiredconnection.
TipsforusingthewirelessLANfeature
Toachievethebestconnection,usethefollowingguidelines:
•PlaceyourcomputersothatthereareasfewobstaclesaspossiblebetweenthewirelessLANaccess
pointandthecomputer.
•Openyourcomputerdisplaytoanangleofslightlymorethan90degrees.
•Ifyouusethewirelessfeature(the802.11standard)ofyourcomputersimultaneouslywithaBluetooth
option,thedatatransmissionspeedcanbedelayedandtheperformanceofthewirelessfeaturecanbe
degraded.
WirelessWAN
WirelessWideAreaNetwork(wirelessWAN),usingcellularnetworksfordatatransmission,enablesyou
toestablishwirelessconnectionsoverremotepublicorprivatenetworks.Theseconnectionscanbe
maintainedoveralargegeographicalarea,suchasacityoranentirecountry,byuseofmultipleantenna
sitesorsatellitesystemsmaintainedbywirelessserviceproviders.
SomeThinkPadnotebookcomputerscomewithabuilt-inwirelessWANcardintegratingsomewireless
WANtechnologies,suchas1xEV-DO,CDMA,HSPA,HSPA+,3GorGPRS.Byusingthebuilt-inwireless
WANcardandthecongurationutilitythatcomeswithyourcomputer,youcanestablishwirelessWAN
connectionsandmonitorthestatusofyourconnection.
Note:WirelessWANserviceisprovidedbyauthorizedserviceprovidersinsomecountries.
TipsforusingthewirelessWANfeature
Toachievethebestconnection,usethefollowingguidelines:
•Keepyourcomputerawayfromyourbody.
•Placeyourcomputeronaatsurfaceandopenyourcomputerdisplaytoanangelofslightlymore
than90degrees.
•Placeyourcomputerawayfromconcreteorbrickwallsthatmightdampencellularsignals.
•Bestreceptionwillbeavailablenearwindowsandotherlocationswherecellularphonereceptionisthe
strongest.
Bluetooth
Bluetoothisoneofanumberoftechnologiesusedtocreateawirelesspersonalareanetwork.Bluetooth
canconnectdevicesashortdistancefromoneanother ,andiscommonlyusedforconnectingperipheral
devicestoacomputer,transferringdatabetweenhand-helddevicesandapersonalcomputer,orremotely
controllingandcommunicatingwithdevicessuchasmobilephones.
Establishingawirelessconnection
Toestablishawirelessconnection,dothefollowing:
36UserGuide