Patent ID: 8885743

Claim:
A method for transmitting a hybrid automatic repeat request (HARQ) acknowledgement (ACK)/not-acknowledgement (NACK) in a wireless communication system, the method comprising: generating, by a user equipment, a symbol for a HARQ ACK/NACK; generating, by the user equipment, a cyclically shifted sequence by cyclically shifting a base sequence by a cyclic shift value; generating, by the user equipment, a modulated sequence by spreading the symbol with the cyclically shifted sequence; and transmitting, by the user equipment, the modulated sequence in a multiplexed resource block, the multiplexed resource block including a plurality of subcarriers, wherein at least one cyclic shift in the multiplexed resource block is allocated to a channel quality indicator (CQI) so that the HARQ ACK/NACK and the CQI are identified by different cyclic shift values of the base sequence in the multiplexed resource block.