METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A SPREAD SPECTRUM RECEIVER

摘要

A novel and improved method and apparatus in a communication system (100) provides for efficient processing of received signals. The method and apparatus includes converting an encoded and spectrum spread received signal to received samples, determining a first channel estimate based on a first set of pilot signal samples. The first set of pilot signal samples are included in the received samples. The received samples are passed through a correlation (701) and decoding (702) process in accordance with the first channel estimate to produce decoded received samples. The decoded received samples are re-encoded (703) and re-spreaded (703) to produce re-encoded and re-spread samples. The re-encoded and re-spread samples are modified based on the first channel estimate to produce channel modified re-encoded and re-spread samples. The received samples pass through an interference cancellation (705) that uses the channel modified re-encoded and re-spread samples to produce a new set of received samples.