INTERFERENCE CANCELLATION APPARATUS IN MULTIPLE ANTENNA SYSTEM AND A METHOD THEREOF, CAPABLE OF IMPROVING INTERFERENCE CANCELLATION PERFORMANCE IN A QUICK CHANNEL CHANGE

摘要

PURPOSE: An interference cancellation apparatus in multiple antenna system and a method thereof are provided to improve interference cancellation performance in a quick channel change through a covariance matrix per a tone or a band.;CONSTITUTION: An interference cancellation apparatus in multiple antenna system includes a channel estimator(512), a covariance matrix generating unit(510), a weight calculating unit(506), and a beam former(504). The channel estimator estimates a channel about a service cell and an interference channel about an adjacent cell by using a sounding signal through antennas. The covariance matrix generating unit produces a covariance matrix from an interference channel by using an average value. The weight calculating unit calculates a beam coefficient by using the covariance matrix. The beam former forms a beam by using a beam coefficient.;COPYRIGHT KIPO 2010