IP NETWORK INFORMATION DATABASE IN MOBILE DEVICES FOR USE WITH MEDIA INDEPENDENT INFORMATION SERVER

摘要

A mobile device receives wireless network information from a MIIS (Media Independent Information Server), and builds its own database of existing networks with their associated characteristics, appropriately mapped with GP S (Global Positioning Satellite) coordinates or other appropriate form of geographical location identifying information. Consequently, the mobile devi ce becomes "smart" over time through the learning process of first attempting t o utilize its own developed database and, only if such database information falls short, making a remote query to a MIIS to get required information for session continuity and performing handovers. The mobile device may store the information received from the MIIS in its own local database together with a time-stamp. Each time the mobile device needs to get updated or new information, it sends a request to the MIIS along with the time-stamp append ed to the request. In this way, the mobile device is sent only the information that it does not already have stored in its database