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TECHNIQUES FOR ESTIMATING CHANNEL AND INTERFERENCE IN OFDM WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS

  • US 20100329374A1
  • Filed: 06/24/2010
  • Published: 12/30/2010
  • Est. Priority Date: 06/29/2009
  • Status: Active Grant
First Claim
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1. A method for transmitting a midamble by a multiple antenna transmitting device in a wireless communication system, the method comprising:

  • determining a pattern for a midamble including null subcarriers and pilot subcarriers, wherein each of the pilot subcarriers corresponds to one of a plurality of pilot signals, and each of the plurality of pilot signals corresponds to a different one of a plurality of transmit antennas; and

    transmitting the pilot signals in corresponding pilot subcarriers based on the determined pattern, wherein the pilot signals are transmitted in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of a resource block comprising a plurality of subcarriers and a plurality of OFDM symbols.

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