Performance analysis of in-building FDD deployment using measured data

This paper illustrates a performance analysis for indoor FDD deployments in a business environment using measured path loss data and realistic user deployments. Distributed antenna systems were used to provide the necessary coverage. The analysis involved the interface of path loss maps to a Monte Carlo type simulator. User terminals (UE) were randomly distributed within the indoor environment. Uniform user distributions as well as specific hotspots were investigated. Several mobility scenarios were employed, involving both static and mobile users. The simulation results show: (a) coverage plots with probability of coverage at each location; (b) supported capacity; (c) transmit power distributions; (d) inter-cell and intra-cell interference distributions; and (e) path loss distributions for the served UE. This type of analysis is of significant value in optimising the performance of UMTS networks, by identifying dead zones, gauging sensitivity to network parameters and assessing the impact of the mobility conditions.