Peak suppressing OFDM transmitter

Details Peak suppressing OFDM transmitter Peak suppressing OFDM transmitter

2011-05-31

2011-05-31

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S297000

Reexamination Certificate

active

07953179

ABSTRACT:
Communication equipment transmits signals of an OFDM system while effectively suppressing peaks in the transmission. OFDM signals are formed and peaks of the OFDM signals are suppressed. The OFDM signals of which the peaks are suppressed are converted into intermediate-frequency signals, and peaks of the intermediate-frequency signals are suppressed. Additionally, the intermediate-frequency signals of which the peaks are suppressed are synthesized and the signals having been synthesized are amplified. The peaks of the OFDM signals are suppressed with the synthesized value of the absolute values of the OFDM signals as an estimated peak value, and the peaks of the intermediate-frequency signals are suppressed with the absolute value of the result of synthesizing the intermediate-frequency signals as an estimated peak value.

REFERENCES:
patent: 2008/0207142 (2008-08-01), Numakunai
patent: 2008/0285432 (2008-11-01), Ueng et al.

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