METHOD, DEVICE AND SYSTEM OF HANDOVER

摘要

A handover method includes the following steps: an evolved mobile switching centre (eMSC) receives a relocation request from a first network, and forwards the relocation request to a second network, requesting the second network to establish its own media plane association; the eMSC establishes a media plane association with the second network; the eMSC instructs a UE to access the second network. With the handover method, the UE may be handed over between different networks by using the eMSC. A method for reattaching a UE to the eMSC is also provided, so that the UE can be reattached to a target eMSC when the eMSC to which the UE is attached is changed. A handover apparatus and a handover system are also provided.