It is so important to analyze several kinds of interferences and repeater noise. It is require that appropriate parameter are adjusted to guarantee BTS system coverage, capacity optimizer and best system performance. Whenever repeater transmits subscriber's signal to BTS, repeater transmits background noise and outdoor noise to BTS at both situations. This is basically caused to increase the noise level of the BTS. When this noise level is over the certain level, it raises decrease of base station coverage and capacity. But it can be solved by apt design, settlement and parameter control of a base station.
In this paper it is suggested solutions through interference rate and antenna direction control, repeater set, antenna isolation and PCS system principle, kinds and present condition of noise, Spurious Interference measurement and several kinds of noises analysis. It is proposed that various methods to minimize the interference of Spurious Interference and embody the best system performance in PCS bandwidth through the systematical development in this paper.
In this paper it is suggested solutions through interference rate and antenna direction control, repeater set , antenna isolation and PCS system principle, kinds and present condition of noise, Spurious Interference measurement and several kinds of noises analysis.