Patent ID: 8837424

Claim:
A method for processing a handover procedure by a user equipment (UE) of a mobile communication system, the method comprising: receiving, by the UE, a radio resource reconfiguration message from a base station; recognizing, by the UE, a handover type based on information included in the received radio resource reconfiguration message, wherein the information is mobility related information, wherein the mobility related information includes each of a first parameter indicating a target physical cell identity and a second parameter indicating a new user equipment (UE) identity, and wherein the first parameter is a physical cell identity (PCI) and the second parameter is a cell-radio network temporary identifier (C-RNTI); and performing, by the UE, a first or second handover procedure according to the recognized handover type, wherein the first or second handover procedure is performed based on whether a new C-RNTI or a new PCI exists in the radio resource reconfiguration message.