Method and apparatus for transmitting control information in wireless communication system

摘要

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control information through a PUCCH in a wireless communication system and an apparatus thereof, comprising the steps of: spreading modulation symbol sets to first slot, by using a first code; spreading modulation symbol sets to second slot, by using a second code, wherein the length of the second code is varied according to the number of SC-FDMA symbols for PUCCH transmission.

主权项

1. A method for, at a user equipment (UE), transmitting control information through a physical uplink control channel (PUCCH) in a wireless communication system, the method comprising:
dividing a modulation symbol sequence for the control information such that divided modulation symbol sequences correspond to two slots of a subframe; spreading a divided modulation symbol sequence corresponding to a first slot using a first code of length M to provide M spread sequences, wherein the M spread sequences correspond to a plurality of single carrier frequency division multiple access (SC-FDMA) symbols of the first slot; spreading a divided modulation symbol sequence corresponding to a second slot using a second code of length N to provide N spread sequences, wherein the N spread sequences correspond to a plurality of SC-FDMA symbols of the second slot; and transmitting discrete-Fourier-transformed signals including the N and M spread sequences through the corresponding SC-FDMA symbols in the first and second slots of the subframe, wherein the length M of the first code is fixed irrespective of whether the subframe is used for sounding reference signal transmission or not, and wherein the length N of the second code is varied in accordance with whether the subframe is used for sounding reference signal (SRS) transmission or not.