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Radio Channel Estimator

  • US 20100087151A1
  • Filed: 09/30/2009
  • Published: 04/08/2010
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
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1. A radio channel estimator (100) for estimating a first radio channel (ĥ

  • t) to obtain a first radio channel estimate (ĥ

    1), the first radio channel (h1) being comprised in a multiple input multiple output (MIMO=multiple input multiple output) radio channel, the MIMO radio channel extending between at least a first transmit antenna (Tx1), a second transmit antenna (Tx2) and a receive antenna (Rx), the first radio channel (h1) extending between the first transmit antenna (Tx1) and the receive antenna (Rx), comprising;

    a means (110) for receiving a reference symbol transmitted by the second transmit antenna (Tx2);

    a means (120) for estimating a second radio channel (ĥ

    2) based on the reference symbol, the second radio channel (h2) extending between the second transmit antenna (Tx2) and the receive antenna (Rx); and

    a means (130) for processing the estimate (ĥ

    2) of the second radio channel based on a spatial property of the MIMO radio channel to obtain the first radio channel estimate (ĥ

    1).

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