Invention Grant
US09438457B2 Peak to average power ratio suppression 有权
峰值与平均功率比抑制

Peak to average power ratio suppression
Abstract:
A transmitter comprises a first peak-to-average-power ratio (PAPR) suppression circuit, a second peak-to-average-power ratio (PAPR) suppression circuit, and a first modulator. The first PAPR suppression circuit may receive a first sequence of time-domain symbols to be transmitted, alter the first sequence based on each of a plurality of symbol ordering and/or inversion descriptors to generate a corresponding plurality of second sequences of time-domain symbols, measure a PAPR corresponding to each of the second sequences, select one of the plurality of symbol ordering and/or inversion descriptors based on the measurement of PAPR, and convey the selected one of the symbol ordering and/or inversion descriptors to the second PAPR suppression circuit. The second PAPR suppression circuit may receive the first sequence of time-domain symbols to be transmitted, and alter the first sequence based on the selected one of the symbol ordering and/or inversion descriptors to generate a reordered and/or inverted symbol sequence.
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