Handover signaling for mobile user in relay LTE-Advanced environment

In order to enhance work in LTE-Advanced with the existing of a RN, the discussion about the available architecture and the available handover procedure are discussed. A new architecture and signaling for X2 handover from a RN to a target eNB in different cell for Architecture A alt. 2 are introduced in this paper. It shows how the handover signaling on the RRC protocol works. The alt. 2 implements the DeNB + “X2 home eNB GW” thus the difference of it is discussed in this paper. The signaling highlight the important of the measurement report to the handover performance. Without measurement report packet will be loss during the handover execution and this will degrade the performance of the network.