Patent ID: 8588166

Claim:
A method of transmitting a physical uplink control channel (PUCCH) signal at a user equipment (UE) in a wireless communication system, the method comprising: modulating control information bits to generate N 1 modulation symbols, wherein N 1 is twice a number of subcarriers in one resource block (RB); spreading first N 1 /2 modulation symbols of the N 1 modulation symbols by using a first orthogonal code to generate a first plurality of sequences, each sequence of the first plurality of sequences including the first N 1 /2 modulation symbols; spreading second N 1 /2 modulation symbols of the N 1 modulation symbols by using a second orthogonal code to generate a second plurality of sequences, each sequence of the second plurality of sequences including the second N 1 /2 modulation symbols; spreading the first N 1 /2 modulation symbols of the N 1 modulation symbols by using a third orthogonal code to generate a third plurality of sequences, each sequence of the third plurality of sequences including the first N 1 /2 modulation symbols; spreading the second N 1 /2 modulation symbols of the N 1 modulation symbols by using a fourth orthogonal code to generate a fourth plurality of sequences, each sequence of the fourth plurality of sequences including the second N 1 /2 modulation symbols; transmitting the first and third plurality of sequences using a first slot of a subframe through different antenna ports, each sequence of the first and third plurality of sequences mapped on a corresponding single carrier frequency division multiple access (SC-FDMA) symbol in the first slot; and transmitting the second and fourth plurality of sequences using a second slot of the subframe through different antenna ports, each sequence of the second and fourth plurality of sequences mapped on a corresponding SC-FDMA symbol in the second slot, wherein each sequence of the first to fourth plurality of sequences is discrete Fourier transformed.