SIGNAL GENERATION DEVICE, TRANSMISSION DEVICE, SIGNAL GENERATION METHOD, TRANSMISSION METHOD, AND COMMUNICATION SYSTEM

摘要

Spread units (110#1 to 110#n) spread each of a plurality of data by a spread code based on an initial phase. A multiplexing unit (120) code-multiplexes data spread by the spread units (110#1 to 110#n). A calculation unit (130) calculates the peak of the signal code-multiplexed by the multiplexing unit (120). A switching control unit (150) switches the initial phase of the spread units (110#1 to 110#n) in a predetermined order. A judgment unit (140) judges whether or not the peak calculated by the calculation unit (130) is equal to or smaller than a threshold value for each initial phase switching performed by the switching control unit (150). A transmission control unit (160) outputs the signal code-multiplexed by the multiplexing unit (120) when the judgment unit (140) judges that the peak is equal to or smaller than the threshold value. An amplifier (170) amplifies the signal outputted by the transmission control unit (160).