Method and apparatus for transmitting control information in a wireless communication system

摘要

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal transmits control information in a wireless communication system, and to an apparatus for the method, wherein the method comprises the following steps: spreading a control information block corresponding to one single carrier frequency division multiplexing (SC-FDMA) symbol, such that the spread control information blocks correspond to a plurality of first SC-FDMA symbols; performing a discrete Fourier transform (DFT) precoding process on the spread control information blocks on an SC-FDMA symbol basis; transmitting, in the plurality of first SC-FDMA symbols in a subframe, the DFT precoded control information blocks; and transmitting, in a plurality of second SC-FDMA symbols in the subframe, a reference signal sequence, wherein an orthogonal code is applied to the plurality of second SC-FDMA symbols in a time domain.

主权项

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.