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Apparatus and method for transmitting/receiving data in a multi-antenna communication system

  • US 20070104283A1
  • Filed: 10/31/2006
  • Published: 05/10/2007
  • Est. Priority Date: 10/31/2005
  • Status: Active Grant
First Claim
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1. A method for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas in a Multiple-Input Multiple-Output (MIMO) scheme, the method comprising the steps of:

  • determining a terminal to which the base station will transmit data, determining antennas via which the base station will transmit data among the plurality of antennas, and determining a space pre-coding method based on the channel status information;

    multiplexing transmission data into a plurality of data streams according to the number of the determined antennas, and performing coding and modulation on each of the data streams;

    outputting a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method, and spatial-coding each of the coded streams with the matrix selected based on the matrix select signal; and

    performing Orthogonal Frequency Division Multiplexing (OFDM) modulation on each of the spatial-coded streams, and transmitting each of the OFDM-modulated streams via an associated antenna.

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