WIRELESS RECEIVER, BASE STATION DEVICE, COMMUNICATION TERMINAL DEVICE AND RECEIVING METHOD

摘要

PROBLEM TO BE SOLVED: To prevent increase in lock time, and optimize a configuration of a receiver by increasing selectable intermediate frequencies.

SOLUTION: A reference frequency signal generator 101 generates a reference frequency signal. A local fraction frequency dividing unit 102 is a fraction frequency divider PLL in which a value smaller than 1 with a decimal point can be set as a division number, and divides the reference frequency signal by the set division number. A local oscillator 103 generates a local signal based on the divided reference frequency signal. A synthesizer 107 synthesizes a received signal and the local signal to convert the received signal of a wireless frequency into that of the intermediate frequency. An ADC 110 executes undersampling to the received signal by using the reference frequency signal so as to convert an analog signal to a digital signal.

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