MOBILE IP PACKET COMMUNICATION SYSTEM

摘要

A mobile IP packet communication system includes a mobile terminal (8), a wireless base station (6), a base station control device (5), a subscriber packet switching device (3), and a gateway packet switching device (1). The subscriber packet switching device, which receives a packet from a mobile terminal as a source, encapsulates it with a multicast address without acquiring the information on the routing area (13), visited by the mobile terminal as a destination, from the home location register (2). The subscriber packet switching device then routes the packet directly to a subscriber packet switching device visited by the mobile terminal as a destination. In this manner, transmission delay can decrease in data packet transfers between mobile terminals.