Patent ID: 8411661
Filing Date: 2013-04-02
Classification: H04J,H04L

Abstract:
1. A method of 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 N CAZAC , 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>N CAZAC , the method comprising the steps of: providing a frequency-domain representation of the CAZAC sequence; mapping the frequency-domain representation of the CAZAC sequence to N filling the remaining M applying an IDFT of size M up-sampling the sub-sampled time-domain representation of the CAZAC sequence according to the transmission bandwidth to generate the SC-FDMA signal.