Interference simulations for a home base station system

This paper presents the results for interference simulations for the GSM-based home base station (HBS) system for a high-density urban scenario. In one possible HBS system, the HBS system is not frequency-coordinated with the overlaying macro cellular network. This paper investigates the impact of such a system on the macro cellular network by simulating the interference environment seen by both the macro cellular system and the HBS system. These simulations study the interference as a function of the HBS base station power and of the traffic load in the HBS system. The results show that such HBS systems can coexist with macro systems in high-density urban areas without producing noticeable interference to the macro cellular system and that the HBS system has good performance.