An analytical approach for determining coverage probabilities in large UMTS networks

Abstract

An analytical model for dimensioning and planning of large UMTS networks with varying service mixtures is presented. Given the distribution of the UMTS traffic and the attenuation between mobiles and base stations using any given path loss prediction, the uplink-coverage probabilities and call blocking rates can be determined for a realistic "many cells-many mobiles" case. Because of effects like "cell breathing" a precise calculation of in-cell and inter-cell interference is done simultaneously. Imperfection of power control is taken into account. This analytical model permits fast calculations in particular for large networks.