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Transmitting spread signal in communication system

  • US 8,369,378 B2
  • Filed: 06/22/2011
  • Issued: 02/05/2013
  • Est. Priority Date: 06/13/2007
  • Status: Active Grant
First Claim
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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;

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