SIGNAL GENERATION DEVICE, MOBILE COMMUNICATION TERMINAL TEST DEVICE INCLUDING THE SAME, SIGNAL GENERATION METHOD, AND MOBILE COMMUNICATION TERMINAL TEST METHOD

摘要

To provide a mobile communication terminal test device that can generate a signal with amplitude-frequency characteristics or phase-frequency characteristics which are changed over time. A mobile communication terminal test device 10 includes a data generation unit 12 that generates a bit stream, a sub-carrier generation unit 31 that receives bit stream data and performs, for example, predetermined encoding, symbol mapping, or sub-carrier mapping to convert the received data into a plurality of sub-carriers based on an OFDM modulation system, a frequency characteristic storage unit 13 that stores table data for predetermined amplitude-frequency characteristics and phase-frequency characteristics, and a frequency characteristic calculation unit 32 that sets the amplitude and phase of each sub-carrier input from the sub-carrier generation unit 31 on the basis of the table data.

主权项

1. A signal generation device that generates a signal in which a plurality of sub-carriers are arranged in a frequency domain, comprising:
sub-carrier generation means for generating the plurality of sub-carriers based on a predetermined modulation system from input data; time domain conversion means for receiving the generated plurality of sub-carriers and converting the plurality of sub-carriers into a signal in a time domain; frequency characteristic storage means for storing data of frequency characteristics for at least one of amplitude-frequency characteristics and phase-frequency characteristics of each of the sub-carriers in advance; and frequency characteristic calculation means for adding the frequency characteristics to each of the sub-carriers generated by the sub-carrier generation means in a predetermined time unit based on the data of the frequency characteristics and outputting the addition result, wherein the time domain conversion means receives the plurality of sub-carriers output from the frequency characteristic calculation means and converts the sub-carriers into the signal in the time domain.