COMMUNICATION TERMINAL DEVICE AND BASE STATION DEVICE

摘要

A buffer 106 stores transmission data temporarily. A CQI transmission control section 113 outputs an instruction signal for generating CQI to a CQI generating section 107 when transmission data is accumulated in buffer 106. CQI generating section 107 generates CQI based on quality information when the instruction signal is input from CQI transmission control section 113, and does not generate CQI when the instruction signal is not input from CQI transmission control section 113. A base station information extracting section 108 extracts transmit parameter information and scheduling information included in received data. A channel coding section 109 encodes transmission data based on encoding rate information in the transmit parameter information. A modulator 110 modulates the transmission data based on modulation scheme information in the transmit parameter information. By this means, a large volume of packet data can be communicated at high speed on the uplink in optimum conditions according to communication environment.