Patent ID: 7039434

Claim:
A mobile wireless communication system comprising: an information server; a portable terminal for carrying out a communication with the information server through a wireless communication line and comprising a buffer memory which stores information transmitted from the information server; a plurality of wireless communication gateway servers, wherein a first of the plurality of wireless communication gateway servers is determined based on a position of the portable terminal, and comprises a buffer memory emulator which stores specification data representing a specification of the buffer memory and transmits the information from the information server to the portable terminal based on the specification data; a switching apparatus for setting a connection between the portable terminal and said first wireless communication gateway server and for setting another connection between the portable terminal and a second wireless communication gateway server when the communication between the portable terminal and the first wireless communication gateway server congests; and a wireless telephony server for informing the position of the portable terminal to the plurality of wireless communication gateway servers, wherein said specification of the buffer memory comprises at least one of the buffer memory size and a consumed size of the buffer memory.