Patent ID: 7508786
Filing Date: 2009-03-24
Classification: H04L,H04W

Abstract:
1. A mobile communication system for exchanging packet data between a host mobile communication terminal and at least one client mobile communication terminal, comprising: a packet data serving node (PDSN) for allocating first and second Internet protocol (IP) addresses to said host mobile communication terminal and said at least one client mobile communication terminal, respectively, and establishing first and second point-to-point protocol (PPP) channels with said host mobile communication terminal and said at least one client mobile communication terminal, respectively; and a short message service (SMS) server for providing an SMS service to said host mobile communication terminal and said at least one client mobile communication terminal; said host mobile communication terminal receives said first IP address allocated from said PDSN, sets up said first PPP channel with said PDSN using the first IP address, sends an SMS message including said first IP address and a list of data to be provided, to said SMS server, and upon receiving a list of data requested to be sent existing in the list of the data to be provided, sends the data of the requested data list to said PDSN through an authentication process; and said at least one client mobile communication terminal receives said second IP address allocated from said PDSN, sets up said second PPP channel with said PDSN using the second IP address, sends a download request parameter including said requested data list selected from said list of said data to be provided, to said host mobile communication terminal via said PDSN, and receives said data of said requested data list sent from said host mobile communication terminal; wherein said host mobile communication terminal includes a socket server application program for managing transmission of data that is requested from each of the client mobile communication terminals, said client mobile communication terminal includes a socket client application program for accessing the host mobile communication terminal.