Patent ID: 6904078
Filing Date: 2005-06-07
Classification: H04B,H04L

Abstract:
1. A receiver for receiving and demodulating a signal including a combined symbol sequence that has a plurality of slots and includes data symbols and pilot symbols, said receiver comprising: means for detecting positions of the pilot symbols in the combined symbol sequence; means for generating pilot blocks by extracting in a plurality of slots the pilot symbols from the combined symbol sequence in response to a result of the detection; means for obtaining channel estimation values by calculating a weighted sum of average values of the pilot symbols in the pilot blocks; means for acquiring from the combined symbol sequence a data symbol sequence in accordance with the result of the detection; means for compensating for channel fluctuations of the data symbol sequence using the channel estimation values; and means for controlling the weighting in response to a rate of the channel fluctuations by using at least the pilot symbols included in the pilot blocks.