摘要 |
<p>In a lattice-reduction-aided receiver based wireless communications system, outputs are determined on the basis of a received signal, the received signal being modulated onto a plurality of sub-carriers. The method by which this is achieved comprises obtaining an estimate of the channel response for a first of the sub-carriers, applying a lattice reduction transformation to the channel response estimate for the first sub-carrier to derive a reduced basis channel response estimate for the first sub-carrier and, for each further sub-carrier in turn, multiplying the channel response estimate for the further subcarrier by the lattice reduction transformation applied to the channel response estimate for the previously considered subcarrier and applying a lattice reduction transformation to the transformed channel response estimate to derive a reduced basis channel response estimate, equalising the received subcarrier signals in accordance with their respective reduced basis channel response estimates, and determining an estimate of the transmitted signal therefrom.</p> |
申请人 |
KABUSHIKI KAISHA TOSHIBA;PONNAMPALAM, VISHAKAN;SANDELL, MAGNUS, STIG, TORSTEN;LILLIE, ANDREW, GEORGE;MCNAMARA, DARREN, PHILLIP |
发明人 |
PONNAMPALAM, VISHAKAN;SANDELL, MAGNUS, STIG, TORSTEN;LILLIE, ANDREW, GEORGE;MCNAMARA, DARREN, PHILLIP |