Patent ID: 6798763
Filing Date: 2004-09-28
Classification: H04L,H04W

Abstract:
A mobile communication system, comprising a communication terminal that communicates with a mobile terminal for transmitting data to said mobile terminal and a prescribed station that relays communication between said mobile terminal and said communication terminal being connected to each other via a communication network, said mobile terminal communicating with said prescribed station and, as it moves, being switched and assigned with an address for every different visited area, for uniquely identifying the mobile terminal, characterized in thatsaid mobile terminal includes, for use while moving, call setup request receiving means for receiving, from said communication terminal via said prescribed station, call setup request information that requests setup of a call for transmission of said data, determination means for determining, based on said call setup request information received by said call setup request receiving means, whether real-time communication is required for said data, and address notification means, when said determination means determines that said real-time communication is required, for notifying said communication terminal of said address currently assigned to the mobile terminal, and said communication terminal includes data sending means for sending said data to said mobile terminal based on said address notified, via a communication path including said communication network but excluding said prescribed station that is established after said address was notified by said address notification means.