METHOD AND ENODEB FOR FORWARDING DOWNLINK AND UPLINK PACKETS BASED ON S1 HANDOVER

摘要

A method for forwarding downlink packets based on S1 handover is disclosed. The method includes: numbering a packet not processed by using PDCP according to a message that comprises PDCP Serial Number (SN) information if downlink packets to be forwarded include the packet not processed by using PDCP; and sending the downlink packets to the UE according to the PDCP SN corresponding to the packet included in the downlink packets. A method for forwarding uplink packets based on S1 handover is disclosed. The method includes: receiving state report information of the packet sent by the target eNodeB; and sending the packet according to the state report information of the packet. Another method for forwarding downlink packets based on S1 handover and an eNodeB are disclosed. Through the embodiments of the present disclosure, the packets are forwarded without loss in the case of S1 handover.

主权项

1. A method for forwarding uplink packets based on S1 handover, comprising:
receiving, by a target evolved NodeB (eNodeB), a packet data convergence protocol serial number (PDCP SN) of a packet not received by a source eNodeB and an initial PDCP SN of a packet required to be sent sequentially from the source eNodeB; sending, by the target eNodeB, packet state report information to a user equipment (UE), wherein the packet state report information comprises the PDCP SN of the packet not received by the source eNodeB and the initial PDCP SN of the packet required to be sent sequentially; and receiving, by the target eNodeB, the uplink packets sent by the UE according to the PDCP SN of the packet not received by the source eNodeB and the initial PDCP SN of the packet required to be sent sequentially.