Patent ID: 8861464
Filing Date: 2014-10-14
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting control information at a user equipment (UE) in a wireless communication system, the method comprising: spreading a control information block corresponding to one single carrier frequency division multiplexing (SC-FDMA) symbol, such that spread control information blocks correspond to a plurality of first SC-FDMA symbols; DFT(discrete Fourier transform)-precoding the spread control information blocks on an SC-FDMA symbol basis; generating a plurality of reference signal sequences corresponding to a plurality of second SC-FDMA symbols, wherein each of the plurality of reference signal sequences is generated by circular-shifting a base sequence; transmitting the DFT-precoded control information blocks through the plurality of first SC-FDMA symbols in a subframe through at least one antenna; and transmitting the plurality of reference signal sequences through the plurality of second SC-FDMA symbols in the subframe through the at least one antenna, wherein an orthogonal code is applied to the plurality of second SC-FDMA symbols in a time domain.