Information processing apparatus, communication device, and information processing device

A communication device comprising:

• a transmission signal generator configured to generate a first baseband signal for a first band and a second baseband signal for a second band;
• an information processing apparatus configured to receive the first baseband signal and the second baseband signal;
• an adder configured to generate a multiband signal by combining the first baseband signal and the second baseband signal having peaks suppressed by the information processing apparatus;
• and
• a transmission circuit configured to up-convert and amplify the multiband signal, wherein:
• the information processing apparatus includes:
• a peak detector configured to detects a peak of a signal based on the multiband signal in which the first baseband signal and the second baseband signal are combined;
• a ratio adjuster configured to adjust a ratio of a first peak suppression signal corresponding to the first baseband signal and a second peak suppression signal corresponding to the second baseband signal, according to amplitudes or power of the first baseband signal and the second baseband signal at a timing when the peak is detected;
• peak suppression circuitry configured to suppress a peak of the multiband signal, using the first peak suppression signal and the second peak suppression signal having the adjusted ratio;
• and
• output circuitry configured to output the multiband signal with the suppressed peak.

An information processing method implemented in an information processing apparatus including a first input terminal configured to receive a first baseband signal, and a second input terminal configured to receive a second baseband signal, the information processing method comprising:

• detecting a peak of a signal based on a multiband signal in which the first baseband signal and the second baseband signal are combined;
• adjusting a ratio of a first peak suppression signal corresponding to the first baseband signal and a second peak suppression signal corresponding to the second baseband signal, according to amplitudes or power of the first baseband signal and the second baseband signal at a timing when the peak is detected;
• suppressing the peak of the multiband signal using the first peak suppression signal and the second peak suppression signal having the adjusted ratio;
• and
• outputting the multiband signal with the suppressed peak.