Patent ID: 8369378
Filing Date: 2013-02-05
Classification: H04B,H04J,H04L

Abstract:
1. A method for transmitting Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system, the method comprising: spreading first ACK/NACK information using an orthogonal sequence with a spreading factor of 2; spreading second ACK/NACK information using an orthogonal sequence with the spreading factor of 2; and coding the first and second spread ACK/NACK information on four available neighboring subcarriers of multiple antennas in a form as shown in Table 1 or 2: wherein antennas A and B represent two antennas in the multiple antennas, wherein antennas C and D represent two antennas in the multiple antennas, wherein a wherein the “*” symbol represents a conjugate operation.