Patent Number: 8,718,180

Title: Multi-antenna wireless communications method and apparatus with vector perturbation with a reduced lattice

Abstract: Precoding information prior to MIMO transmission is described, comprising determining a suitable preceding perturbation. The perturbation is determined by assembling a list of candidate perturbations in reduced lattice space, transforming these back into information lattice space and determining which candidate precoder perturbation is most suitable given a performance criterion.

Inventors: Vetter; Henning (Bristol, GB), Ponnampalam; Vishakan (Bristol, GB)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H04L 27/00 (20060101); H04K 1/02 (20060101); H04K 1/10 (20060101); H04L 27/28 (20060101)

Expiration Date: 5/06/12018