METHOD OR OFDM DEVICE FOR SC-FDMA DATA TRANSMISSION Russian patent published in 2011 - IPC H04L27/26 

FIELD: information technology.

SUBSTANCE: invention relates to a method or an OFDM device for SC-FDMA data transmission in which a sequence of input data (x(i), i = 1, 2, 3, …, N) is transformed via discrete transformation (DFT) as transformed data signals (yi, i = 1, 2, 3, …, N) of coded and modulated data signals on first frequency channels (f1, f2, f3, …, fN) into a first frequency domain over a first number (N) of frequencies, the transformed data signals (yi) are mapped on second frequency channels (f1*, f2*, f3*, …, fN*, …, fNc*) in a second frequency domain with a larger second number (Nc) of frequencies, the transformed data signals on the second frequency channels are inverse-transformed using inverse transformation (IFFT), and data (zi) inversely transformed in such a way are provided for transmission on this basis, the transformed data signals (yi) are mapped into a frequency range (fi+1*, …, fi+N*) of the second frequency channels in such a way that a constant component (y1, f1) of the transformed data signals (yi) is mapped midway inside the frequency range (fi+1*, …, fi+N*).

EFFECT: less costly data processing and lower power consumption.

12 cl, 7 dwg