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System, method, apparatus, and computer program for wireless communication

  • US 20050249303A1
  • Filed: 12/01/2004
  • Published: 11/10/2005
  • Est. Priority Date: 05/10/2004
  • Status: Active Grant
First Claim
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1. A wireless communication system which carries out data transmission, using multiple spatially multiplexed communication channels between a transmitter and a receiver, wherein:

  • the transmitter transmits user data following a reference signal for channel matrix acquisition, wherein the user data and the reference signal are weighted and transmitted over the spatially multiplexed channels; and

    the receiver acquires a channel matrix H, based on the reference signal attached preceding the user data, receives the user data, while weighting the data with receive weights derived from the channel matrix H, and adaptively estimates the channel matrix H as long as the user data is being received.

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