WCDMA Downlink Capacity Analysis based on Deterministic Ray-Tracing Channel Model

In this paper the analysis for WCDMA downlink capacity is presented for a real service environment at Yeouido, Seoul, Korea which is considered as a typical high rise building environment. Ray-tracing technique is used to predict site-specific sector averaged pathlosses not only from the desired node B but also from undesired node Bs to scattered receiver locations in a given cell. Total required power of node B is estimated, which limits system capacity depending on the combination of service types, macro diversity and orthogonal factor.