Patent ID: 10091041

Abstract:
In some embodiments, a wireless communication apparatus may include, but is not limited to, a segment divider, a reference symbol inserter, a phase rotator, an adder, and a peak-to-average power ratio evaluator. The reference symbol inserter inserts at least one reference symbol having a phase into at least one of the subcarrier segments. The phase rotator performs respective phase rotations to the subcarrier segments, based at least in part on a plurality of different combination patterns, each of the different combination patterns identifying a respective phase rotation to the subcarrier segments. The peak-to-average power ratio evaluator calculates, for each of the plurality of different combination patterns, a peak-to-average power ratio of the transmission signals generated. The peak-to-average power ratio evaluator selects, from the transmission signals, a transmission signal having a smallest peak-to-average power ratio among the plurality of peak-to-average power ratios calculated.