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 signal via a PUCCH in a wireless communication system, and to an apparatus for the method, wherein the method comprises the following steps: joint-coding a plurality of pieces of control information to obtain a single codeword; obtaining a first modulation symbol sequence from the single codeword; obtaining, from the first modulation symbol sequence, a plurality of second modulation symbol sequences corresponding to each slot in the PUCCH; cyclically shifting the plurality of second modulation symbol sequences in a time domain to obtain a plurality of third modulation symbol sequences; performing a discrete Fourier transform (DFT) precoding process on the plurality of third modulation symbol sequences to obtain a plurality of complex symbol sequences in a frequency domain; and transmitting the plurality of complex symbol sequences via the PUCCH.

主权项

1. A method for transmitting control information through a physical uplink control channel (PUCCH) at a user equipment (UE) in a wireless communication system, the method comprising:
modulating control information bits to generate N1 modulation symbols, wherein N1 is twice of a number of subcarriers in one resource block (RB); block-wise multiplying the first N1/2 modulation symbols of the N1 modulation symbols by each element of a first orthogonal code to generate a first plurality of sequences; block-wise multiplying the second N1/2 modulation symbols of the N1 modulation symbols by each element of a second orthogonal code to generate a second plurality of sequences; and transmitting the first and second plurality of sequences in a subframe, wherein each sequence of the first plurality of sequences is mapped to a corresponding single carrier frequency division multiple access (SC-FDMA) symbol in a 1st slot of the subframe, and each sequence of the second plurality of sequences is mapped to a corresponding SC-FDMA symbol in a 2nd slot of the subframe, wherein each sequence of the first and second plurality of sequences is discrete fourier transformed.