CO-CHANNEL INTERFERENCE REDUCTION IN FEMTOCELL NETWORKS

摘要

PROBLEM TO BE SOLVED: To provide a method of mitigating co-channel interference (CCI) for co-channel femtocell networks.SOLUTION: Co-channel macrocell users will inherently produce co-channel interference at a nearby femtocell base station. To reduce the peak co-channel interference power, femtocell users adjust their symbol timing with regard to the macrocell users so as to maximize a spreading of the co-channel interference spectrum. In this fashion, the peak co-channel interference power is reduced, thereby leading to improved bit error rates for the femtocell users.