LTE networks are widely considered as one solution for future high-capacity mobile communications. A higher bit rate, a wider cell coverage, a lower latency, an enhanced and seamless mobility management are some of new features of LTE networks. In LTE architecture, the space is partitioned into cells, each cell being attached to a base station. Each base station (also called eNB) provides air interface to a User Equipment (UE) and receives traffic from the core network through a so called S1 interface. When a UE moves from one cell to another (handover process), its data are transferred through a X2 interface that connects two neighbouring eNBs.