Patent ID: 7957453

Claim:
A method for operating a rake receiver comprising: receiving a signal in a rake receiver having at least one finger, each of the at least one finger characterized by a channel phase and a channel frequency; delaying the signal in a first block of the at least one finger to obtain a first block delayed signal; multiplying the first block delayed signal by a previous decision of the signal to obtain a first block multiplied signal having a data bit removed; obtaining the complex conjugate of the first block multiplied signal to obtain a first block complex conjugate signal; multiplying the first block complex conjugate signal by the signal to obtain a first block result signal; receiving the first block result signal in a second block of the at least one finger; delaying the first block result signal to obtain a second block delayed signal; multiplying the second block delayed signal by the previous decision of the signal to obtain a second block multiplied signal having the data bit removed; obtaining the complex conjugate of the second block multiplied signal to obtain a second block complex conjugate signal; and multiplying the second block complex conjugate signal by the first block result signal to obtain a result signal.