<p>A simulation device (20) is provided with a downlink signal output unit (22) constructed to transmit the downlink signal for cell (1) and the downlink signal for cell (2) as simulated signals to a mobile station (UE). The downlink signal output unit (22) is constructed to shift the leading position of the wireless frame transmitting the downlink signal for cell (1) and the leading position of the wireless frame transmitting the downlink signal for cell (2).</p>
