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Apparatus and method for cancelling interferences between orthogonal coded signals in mobile communication system

  • US 20090122929A1
  • Filed: 06/03/2008
  • Published: 05/14/2009
  • Est. Priority Date: 11/12/2007
  • Status: Active Grant
First Claim
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1. An apparatus for cancelling interferences between signals, the apparatus comprising:

  • a receiving unit that receives an orthogonal coded signal from a transmitter and generates a received vector;

    a channel estimation unit that estimates a state of a wireless channel from the transmitter to the apparatus where the cancelling of the interference between signals is performed and generates a channel state matrix;

    a Q-R decomposition unit that performs Q-R decomposition with respect to the generated channel state matrix and generates a Q matrix and an R matrix, and generates a decision statistic vector based on the generated Q matrix and the received vector; and

    a signal determination unit that determines a received signal with interference from the orthogonal coded signal being decreased based on the generated decision statistics vector.

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