SETTING GAINS IN AN INTERFERENCE CANCELLATION REPEATER BASED ON PATH LOSS

摘要

A method of controlling gains in an interference cancellation repeater includes receiving a combined signal which comprises a downlink signal transmitted from a base station transceiver system (BTS) and a feedback signal. The method further includes performing interference cancellation on the combined signal to substantially remove the feedback signal from the downlink signal. The method further includes determining a path loss between the BTS and the interference cancellation repeater based on the downlink signal after interference cancellation is performed, and adjusting at least one gain in the interference cancellation repeater based on the path loss. An interference cancellation repeater which controls gains based on a downlink path loss includes a first and second transceiver coupled to a first and second antenna, respectively, and a baseband processor configure to perform the above method.