| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an arithmetic processing unit and an arithmetic processing method which allows for scaling with optimum quantization error without causing data saturation, when a frequency domain signal after FFT is represented by a predetermined number of bits. <P>SOLUTION: The arithmetic processing unit 103 comprises an FFT processing unit 115 which performs Fourier transformation of the time domain data corresponding to a plurality of subcarriers in a resource block constituting a wireless signal into the frequency domain data, a bit clip unit 117 which clips the data within a clip bit range from the frequency domain data, and a control unit 119 which determines the clip bit range in the resource block according to the maximum amplitude of the subcarrier in the resource block. <P>COPYRIGHT: (C)2013,JPO&INPIT |
