In a mobile communication system, independent versions of a signal are transmitted over plural antennas. The antennas are either spatially separated or orthogonally polarized with respect to each other so that the independent versions of the signal are not subjected to correlated fading. Each independent...http://www.google.com.au/patents/US20010019592?utm_source=gb-gplus-sharePatent US20010019592 - Transmit diversity and reception equalization for radio links
