User apparatus, base station apparatus, and communication control method for controlling coverage area and data rate according to environments

摘要

A user apparatus to which radio access schemes of a single-carrier scheme and a multicarrier scheme are applied includes: a radio access scheme setting unit configured to set a radio access scheme; a discrete Fourier transform unit configured to perform discrete Fourier transform on a modulated symbol sequence when the radio access scheme is the single-carrier scheme; a serial parallel conversion unit configured to perform serial parallel conversion on the modulated symbol sequence when the radio access scheme is the multicarrier scheme; a frequency domain signal generation unit configured to assign radio resources to the modulated symbol sequence on which discrete Fourier transform has been performed or to the demodulated symbol sequence on which serial parallel conversion has been performed so as to generate a signal in the frequency domain; a waveform shaping filter configured to perform waveform shaping on the signal in the frequency domain; a transmission signal generation unit configured to perform inverse fast Fourier transform on the signal in the frequency domain on which waveform shaping has been performed so as to generate a transmission signal; and a transmission unit configured to transmit the transmission signal by radio.