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

摘要

Spreading units (110#1-110#n) respectively spread data using spreading code that is based on an initial phase. A multiplexing unit (120) code multiplexes the data spread by the spreading units (110#1-110#n). A calculating unit (130) calculates the peak of a signal resulting from the code multiplexing by the multiplexing unit (120). A change control unit (150) changes the initial phase of the spreading units (110#1-110#n) in a predetermined order. A determining unit (140), each time the initial phase is changed by the change control unit (150), determines whether the peak calculated by the calculating unit (130) is at most a threshold. A transmission control unit (160) that outputs the signal code multiplexed by the multiplexing unit (120), if determining unit (140) determines that the peak is less than or equal to the threshold. An amplifier (170) that amplifies the signal output from the transmission control unit (160).