METHOD AND APPARATUS FOR CANCELLING INTERFERENCE IN SIGNALS HAVING UNDERGONE MULTIPATH

摘要

A receiver unit (121) cancels interference in a composite received signal (102) by synthesizing a replica of the composite received signal which accounts for multipath effects (echoes) of the composite received signal. The receiver unit (121) is comprised of a RAKE receiver (122), which provides correlation peaks of the various multipath echoes. The correlation peaks are characterized by time delays and respective amplitudes and phases of the various multipath echoes. By generating a cancellation signal (124) which utilizes the correlation peaks of each multipath echo, a signal (130) more representative of the actual composite received signal is utilized to improve the degree of interference cancellation.