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SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS

  • US 20100271930A1
  • Filed: 07/06/2010
  • Published: 10/28/2010
  • Est. Priority Date: 10/17/2001
  • Status: Active Grant
First Claim
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1. An OFDM receiver, comprising:

  • at least one receive antenna operable to receive OFDM symbols transmitted from a plurality of transmit antennas, the OFDM symbols transmitted from each transmit antenna comprising pilot symbols in a respective pattern in time-frequency and data symbols in an identical frequency-hopping pattern in time-frequency, the pilot symbols for each respective pattern in time-frequency inserted such that pilot symbols from different transmit antennas do not occupy the same location in time-frequency; and

    a channel estimator operable to compare the received pilot symbols to pilot symbol values known to be transmitted by a transmitter to estimate a channel between the transmitter and the receiver.

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