Patent ID: 8903002

Claim:
A communication device that communicates with another device in orthogonal frequency-division multiplexing wireless communication, the communication device comprising: a computational processor that uses a binary signal, the binary signal being a set of elements of a same number as a number of elements in an input signal and with element values of 1 or 0, to generate computational data whose elements are values of exclusive OR between each element of the input signal and an element in the binary signal at a same position as each respective element; a modulator that modulates the input signal and the computational data according to a primary modulation scheme, and generates respective primary-modulated signals; an IFFT calculator that applies an inverse fast Fourier transformation to the primary-modulated signals to generate respective inverse transformation data; and a transmitter that generates a baseband signal based on the inverse transformation data whose peak-to-average power ratio matches a standard from among inverse transformation data generated by the IFFT calculator, and generates and transmits a transmission signal from the baseband signal and data specifying computations conducted to generate the inverse transformation data that matches the standard.