The impact of mobility on UMTS network planning

We investigate the impact of mobility on UMTS network planning, which stems from (i) the higher SIR requirements that apply in case of higher velocities; and (ii) the greater radio resource reservation regarding handovers that is required in case of higher velocities, in order to keep the dropping probability below a prespecified target value; as a consequence, fresh call blocking increases, inducing a need for denser site planning. A computationally inexpensive yet for planning purposes sufficiently realistic analytical approach is presented to evaluate the impact of both mobility-related aspects on network planning and performance.