RELAY NODE HANDOVER METHOD AND SYSTEM

摘要

Disclosed is a relay node (RN) handover method, comprising the following steps: after receiving a handover instruction message sent from a source mobility management entity (MME) accessed by an RN, a donor evolved NodeB (DeNB) selects a target MME capable of supporting access of the RN, and carries the address of the target MME to initiate a handover request to the source MME accessed by the RN, and the source MME hands over the RN to the target MME selected by the DeNB; or the DeNB initiates a handover request to the source MME, the source MME selects a target MME supporting access of the RN and hands over the RN to the selected target MME. Also disclosed is an RN handover system. According to the present invention, the RN can be handed over to other MME supporting access of the RN when the MME accessed by the RN is overloaded, thereby preventing service interruption of the terminal connected to the network by using the RN and improving user experience.