Patent ID: 8059759
Filing Date: 2011-11-15
Classification: H04L

Abstract:
1. A method comprising: determining an initial channel estimate (CE) based on a preamble of a signal received via a wireless channel; generating an interpolated CE based on the initial CE by estimating frequency responses of the channel for other subcarriers not included in the initial CE; extracting pilot and data subcarriers from a frame control header (FCH) of the signal; from the interpolated CE, extracting channel estimates corresponding to the extracted FCH pilot and data subcarriers; dividing the extracted FCH pilot subcarriers by the extracted corresponding pilot channel estimate and a normal boosting factor associated with the FCH pilot subcarriers to form equalized FCH pilot subcarriers; dividing the extracted FCH data subcarriers by the extracted corresponding data channel estimate to form equalized FCH data subcarriers; determining a normalization factor corresponding to zone boosting based on the equalized FCH pilot subcarriers and the equalized FCH data subcarriers; normalizing the equalized FCH data subcarriers by dividing the equalized FCH data sub carriers with the normalization factor; and determining the FCH based on the normalized FCH data subcarriers.