Patent ID: 8724587
Filing Date: 2014-05-13
Classification: H04W

Abstract:
1. A method for sending a data packet, the method comprising: receiving, by an evolved NodeB, a data packet sent by a core network and sending the data packet to a current access point; keeping caching the data packet on the evolved NodeB before determining that a user equipment has correctly received the data packet from the current access point; when the evolved NodeB knows that the user equipment needs to hand over to the evolved NodeB, stopping sending the data packet sent by the core network to the current access point; and after the user equipment hands over to the evolved NodeB, receiving, by the evolved NodeB, information about a sequence number of the data packet that has been currently and correctly received by the user equipment, and continuing to send, by the evolved NodeB, a data packet that has not been received by the user equipment to the user equipment according to the information.