Public wireless communications will increasingly extend into wireless LAN
(WLAN) environments in order to meet the ubiquitous access, high data
rate, and local services demands of future Internet appliances. By
relying on IP-level services mechanisms, the Public Access Mobility LAN
(PAMLAN) can simultaneously support different air interfaces, franchises
for multiple services providers, and a multi-segment LAN environment
including handoffs. The PAMLAN supports virtual operator LANs
representing different network services providers, authorization and
accounting mechanism, support of multiple air interfaces, and local IP
mobility. A router associated with each base station realizes this highly
distributed IP networking environment, and a QoS-enabled switched
Ethernet core supports virtual networks and QoS services.