OPTIMAL CONNECTION TO INTERNET AND ROAMING METHOD FOR USER MOVING INDOORS/OUTDOORS, AND METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method for connecting to the Internet and a roaming method for a user of a mobile data communication terminal, which are capable of inexpensively connecting an incoming call at any indoor/outdoor place. SOLUTION: In this method, the user enjoys communication services indoors by connecting a data communication terminal 10 to an outdoor wireless Internet network. When received information of an indoor system ID matches an indoor system ID registered in the terminal 10, an indoor position is registered in a position register 80 and the connection is switched from the outdoor wireless Internet network to an indoor gateway 100 to connect the terminal 10 to the Internet network 50 via the indoor gateway 100 and indoor wireless connection modules A and C. The data provided from the Internet network 50 is provided to the terminal 10 via the indoor network on the basis of the registered position information. Then, when the information of the indoor system ID is not received, the outdoor position is registered in the position register 80, and the connection is switched to the outdoor wireless Internet network.