Patent ID: 8730918

Claim:
A handover method based on a mobile relay, comprising: a source Donor evolved NodeB (DeNB) determining based on a measurement report sent by a mobile relay station or according to an internal determination factor that a handover of the mobile relay need to be executed, said source DeNB notifying a target DeNB; wherein, said source DeNB is the eNB that connected with the mobile relay station before the handover, said target DeNB is the eNB that connected with the mobile relay station after the handover, a relay access network at least include the target DeNB and the mobile relay station; a said source DeNB, working as an intermediate node to connect the relay access network with an Evolved Packet Core (EPC); and the source DeNB forwarding data from the relay access network to the EPC and forwarding the data from the EPC to the relay access network, wherein the mobile relay is a relay that has certain mobility; the mobile relay fulfill the handover in the following steps: perform handover preparation between the source DeNB and the target DeNB by exchanging context information of the mobile relay of the source DeNB; after the handover preparation is completed, the target DeNB sets new Un configuration information of the mobile relay at a target cell, and transmits the new Un configuration information to the mobile relay through the source DeNB; and the mobile relay performs Un reconfiguration based on the received Un configuration information, and reconfigures an Un interface from the source DeNB to the target DeNB.