CELL HANDOVER METHOD AND DEVICE

摘要

Embodiments of the present invention provide a cell handover method and a device. so that the target eNB uses a current serving small node as a user plane serving node after UE is handed over and uses the target eNB as a control plane serving node after the UE is handed over; receiving a handover request acknowledgment sent by the target eNB; and sending offloading configuration information of the current serving small node to the current serving small node, and sending RRC reconfiguration information of the UE to the UE, so that offloading configuration is performed separately by the current serving small node and the UE. This avoids a problem that in a cell handover process, a transmission resource required for transmission increases and a delay is relatively great because the current serving small node forwards a large amount of data to the target eNB.

主权项

1. A cell handover method, comprising:
sending a handover request to a target eNB, wherein the handover request comprises a context of a current serving small node, a context of user equipment UE, and an offloading indication, so that the target eNB uses the current serving small node as a user plane serving node after the UE is handed over, and uses the target eNB as a control plane serving node after the UE is handed over; receiving a handover request acknowledgment sent by the target eNB, wherein the handover request acknowledgment comprises radio resource control RRC reconfiguration information of the UE and offloading configuration information of the current serving small node, and the handover request acknowledgment is sent after the target eNB determines that the UE can be handed over, that the current serving small node can serve as the user plane serving node after the UE is handed over, and that the target eNB can serve as the control plane serving node after the UE is handed over; and sending the offloading configuration information of the current serving small node to the current serving small node, and sending the RRC reconfiguration information of the UE to the UE, so that offloading configuration is performed separately by the current serving small node and the UE.