Apparatus and method for changing network interfaces in a multiaccess mobile terminal

A system for changing network interfaces in a mobile terminal in a wireless communication system including a server for providing high-capacity data transmission service to the mobile terminal, and the terminal for receiving data from the server and supporting various network interfaces, the system comprising:

• the mobile terminal for, upon detecting handoff based on current air information received, reporting a change in interface to a new air interface to an upper layer, determining a bandwidth of the new air interface using information on the new air interface, generating a message based on the determined bandwidth, and transmitting the generated message;
• and
• the server for receiving the message generated based on the determined bandwidth from the mobile terminal, and transmitting data to the mobile terminal with a bandwidth suitable for the new air interface.

A method for changing network interfaces in a multiaccess mobile terminal in a wireless communication system including a server for providing high-capacity data transmission service to a mobile terminal, and the terminal for receiving data from the server and supporting various network interfaces, the method comprising the steps of:

• upon detecting handoff based on current air information received, reporting a change in interface to a new air interface to an upper layer;
• and
• upon receiving information on the new air interface, determining a bandwidth of the new air interface, generating a message based on the determined bandwidth, and transmitting the generated message to the server.