THE INTERNET ACCESS SYSTEM IN THE SUBWAY STATION AND THE RUNNING TRAIN BY USE OF WIRELESS LAN

摘要

The present invention relates to a method of implementing an Internet access system using a wireless LAN terminal (laptop PC, PDA) and seamless continuous roaming (SEAMLESS ROAMING) system in subway stations and running trains.;Currently, the only way for citizens to use the Internet in subway history and trains is through mobile networks. In addition, this method is not only a low speed network (up to 144KBPS based on 2.5G mobile communication network) but also a high cost network.;In the present invention, it is possible to access the Internet using a high-speed wireless LAN (up to 11MBPS or 54MBPS) and to simultaneously roam only between ACCESS POINTs having the same network address. It suggests a system implementation to make it possible.