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

  • US 8,406,118 B2
  • Filed: 08/15/2012
  • Issued: 03/26/2013
  • Est. Priority Date: 10/17/2001
  • Status: Active Grant
First Claim
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1. A method of receiving pilot symbols in Orthogonal Frequency Division Multiplexing (OFDM) frames at an OFDM receiver having at least one receiving antenna from an OFDM base station having at least two transmitting antennas, the OFDM base station having an adjacent OFDM base station having at least two transmitting antennas, the OFDM frames having a time domain and a frequency domain, each OFDM frame comprising a plurality of OFDM symbols in the time domain and a plurality of subcarriers in the frequency domain, the method comprising:

  • receiving scattered pilot symbols in a scattered pattern in time-frequency from each transmitting antenna of the OFDM base station, wherein the scattered pattern is offset from a scattered pattern of the adjacent OFDM base station.

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