1. A method ( 1100 ) for cross-polarization interference power suppression in dual-polarization radio communication systems, the method comprising: filtering ( 1101 ) a vertical polarization component (x V (n)) and a horizontal polarization component (x H (n)) of a received dual-polarization channel signal by a 2×2 channel weights matrix ( 507 , 508 ); and determining ( 1102 ) the 2×2 channel weights matrix ( 507 , 508 ) based on a minimum variance distortionless response criterion.