The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2013
Filed:
Sep. 15, 2010
Dietmar Lipka, Berg, DE;
Dietmar Lipka, Berg, DE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A method and 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 N. The SC-FDMA signal is presumed to have a time-domain formulation with a term representative of an Inverse Discrete Fourier Transform (IDFT) of length M, where M>N. A frequency-domain representation of the CAZAC sequence is mapped to Nof Mfrequency points, where N<M<M, and the remaining frequency points are filled with zeros to obtain Mfrequency-domain samples. An IDFT of size Mis applied to the resulting frequency-domain samples to obtain a sub-sampled time-domain representation of the CAZAC sequence, which is then up-sampled according to the transmission bandwidth to generate the SC-FDMA signal.