RADIO COMMUNICATION SYSTEM AND COMMUNICATION TERMINAL APPARATUS USED THEREIN

摘要

A sound signal of a frequency f1 transmitted from a mobile station MS (201), which is a communication terminal, is received by a base station BS (202) and subjected to a predetermined processing. The received data obtained by the predetermined processing is then sent to a mobile switching center (204) via a radio network control station (203). The MSC bundles data from several base stations and sends the bundled data to a telephone line network (207). On the other hand, a high-speed packet of a frequency f2 transmitted from the mobile station MS (201) is received by a base station BS (205) and subjected to a predetermined processing. The received data obtained by this predetermined processing is then routed by a router (206) to be sent to an Internet protocol (IP) network (208).