Channel estimation device for digital telecommunications stations

Abstract

The object of the present invention is to provide the channel estimation device which can provide a morn accurate channel estimation in the interference and/or thermal noise then has been possible heretofore. A channel estimation device in accordance with the invention comprises a first estimator operating to provide a time error estimate in accordance with the correlation between a central group of bits of a received training sequence with the corresponding bits of an expected training sequence, an average for averaging the signal corresponding to each bit of a first sub-group of the bits of the training sequence with the signal corresponding to equivalent bit in a second sub-group of the bits of the training sequence, the first and second sub-groups of bits being expected to be identical, and a second estimator operating to recalculate the timing error estimate in accordance with the correlation between the same central group of bits in the received training sequence corrected by substituting the averaged signals for those contained in the received training sequence and the corresponding bits of the expected training sequence.

Dependencies are inferred from the claim text.