Technique for SC-FDMA signal generation

A device for generating a Single-Carrier Frequency Division Multiple Access (SC-FDMA) signal having a transmission bandwidth and a Constant Amplitude Zero-Autocorrelation (CAZAC) sequence of length NCAZAC, wherein the SC-FDMA signal has a time-domain formulation with a term representative of an Inverse Discrete Fourier Transform (IDFT) of length M, where M>NCAZAC, the device comprising:

• a provisioning unit for providing a frequency-domain representation of the CAZAC sequence;
• a mapping unit for mapping the frequency-domain representation of the CAZAC sequence to NCAZAC of MSEQ frequency points, where NCAZAC<MSEQ<M, and for filling the remaining MSEQ−NCAZAC frequency points with zeros to obtain MSEQ frequency-domain samples;
• an IDFT unit for applying an IDFT of size MSEQ to the resulting frequency-domain samples to obtain a sub-sampled time-domain representation of the CAZAC sequence;
• and
• an up-sampling unit for up-sampling the sub-sampled time-domain representation of the CAZAC sequence according to the transmission bandwidth to generate the SC-FDMA signal.