WLAN Radio Access Network:
-Based on IEEE 802.11b standard

Access everywhere:
-Office (Corporate Access Zone)
-Hotspot (cafe, pub, airport lounge) (Public Access Zone)
-Regional (home) Access Zone

-WLAN Access Network
-consists of WLAN access points, public access controllers, (wireless) routers, VPN terminators / security gateways
-may be divided to access zones for clarity by functionality (regional, corporate, public access)

-WLAN Access Zone
-consists of one or several WLAN access points in one bridged segment
-possible public access controller(s)
-possible (wireless) routers
-possible firewall(s) / security gateways