Patent ID: 7948868

Claim:
A method of enhancing the efficiency of a transmission using Single Channel-Frequency Division Multiple Access (SC-FDMA), the method comprising the steps of: applying a Discrete Fourier Transformation (DFT) of a time signal providing N 0 samples to produce a first signal; inserting N 1 pilot tones allocated to channel estimation and N 2 reserved tones allocated to peak reduction into the first signal to produce a DFT signal having N 0 +N 1 +N 2 tones; interpolating the DFT signal to a predetermined size N, with N being a value greater than N 0 +N 1 +N 2 , by inserting zero tones of the DFT signal to produce a modified frequency domain signal having N tones, wherein N=2 m with m being an integer; applying Inversed Fast Fourier Transform (IFFT) on the modified frequency domain signal; adding a cyclic prefix to create a signal to be transmitted; applying peak reduction energy to the N 2 reserved tones allocated for peak reduction; and transmitting the signal.