Patent ID: 8699470
Filing Date: 2014-04-15
Classification: H04B

Abstract:
1. An apparatus for transmitting data in a multi-antenna system, the apparatus comprising: a scrambling unit for performing scrambling on an input codeword; a modulator for arranging the scrambled codeword to a modulation symbol that expresses a position on a signal constellation; a transform precoder for performing discrete Fourier transform (DFT) on the modulation symbol to generate a DFT symbol of a frequency domain; a resource element mapper for mapping the DFT symbol to a physical resource element; and a single carrier-frequency division multiple access (SC-FDMA) signal generator for generating an SC-FDMA signal of a time domain from the DFT symbol mapped to the resource element, wherein the modulation symbol is selected as a plurality of modulation symbol blocks in the time domain, and the selected modulation symbol blocks are input to the transform precoder after being combined repetitively.