Mathematical model for vertical sectorization (VS) in AAS based LTE deployment

Active Antenna System (AAS) features are promising to enable a dynamic cell deployment layout change based on the nature of the traffic distribution and capacity demand. One of the dynamic deployment options is vertical sectorization (VS) where cell densification is done by activating a new inner sector with its own cell ID in the existing conventional sector layout. In order to investigate the performance of VS and assess the impacts of the parameters determining the VS performance, an appropriate model is required. This paper proposes and presents a mathematical model for vertical sectorization. Moreover, the model shows vital relationships among the system performance and various system parameters. In addition, the performance of the presented model is demonstrated using a 3GPP defined scenario based simulations.