RADIO NETWORK CONTROL APPARATUS

摘要

The present invention has an object of providing a radio network controller that improves data transmission efficiency in a communications system using ATM and IP transmission lines. The controller can communicate through the ATM or IP transmission line with a base station that can communicate with a mobile terminal. The controller includes division means for dividing transmission data into signals of a predetermined data size; means for transmitting the divided signals to the base station at predetermined time intervals; means for retransmitting the signals transmitted to the base station when a response signal from the mobile terminal is not received within a predetermined period; measuring means for measuring a signal response period in a communications channel to the mobile terminal; and means for determining the predetermined data size based on the measured response period.