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Scattered pilot pattern and channel estimation method for MIMO-OFDM systems

  • US 7,778,337 B2
  • Filed: 09/29/2006
  • Issued: 08/17/2010
  • Est. Priority Date: 10/17/2001
  • Status: Expired due to Term
First Claim
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1. A method for inserting data and pilot symbols into an Orthogonal Frequency Division Multiplexing (OFDM) transmission resource for transmission on N transmitting antenna where N≧

  • 2, the OFDM transmission resource having a time domain and a frequency domain, each OFDM transmission resource comprising a plurality of OFDM symbols, the method comprising the steps of;

    for each antenna,inserting pilot symbols in a respective pattern in time-frequency; and

    inserting data symbols in a frequency-hopping pattern in time-frequency that is identical for all the antennas,wherein the pilot symbols for each antenna are inserted such that pilot symbols from other antennas do not occupy the same location in time-frequency.

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