Patent ID: 8254511

Claim:
An equalization apparatus for receiving a received signal from a transmitter via a transmission channel in wireless communication, wherein the transmission channel has a plurality of delay paths, and the delay paths are grouped into P clusters, the equalization apparatus comprising: a channel estimation unit, for estimating gains of the delay paths corresponding to the P clusters; a weight calculation unit, for performing a minimum mean square error (MMSE) algorithm to the gains of the delay paths corresponding to the P clusters, so as to obtain a plurality of N th weights, wherein N=1, 2, . . . , P; a cluster delay unit, for generating a plurality of cluster delayed signals by delaying the received signal for K 1 , K 2 , K 3 , . . . K P unit time, wherein the received signal is represented as r[m], and the cluster delayed signals are respectively represented as r[m−K 1 ], r[m−K 2 ], r[m−K 3 ] . . . r[m−K P ], wherein “m” is represented as a time index; P equalizers, for equalizing the cluster delayed signals r[m−K 1 ], r[m−K 2 ], r[m−K 3 ] . . . r[m−K P ] to obtain an N th equalized signals according to the N th weights; a delay parameter generating unit, for determining number of the cluster of the delay paths according to the corresponding delay time and determining a window interval according to an interval and an initial delay time of the clusters; and a combination unit, for combining the N th equalized signals to a equalized signal, wherein P is larger than 2, and P, K 1 , K 2 , K 3 , . . . , K P and m are positive integers.