METHOD AND DEVICE FOR FORWARDING UPLINK DATA

摘要

Embodiments of the present invention disclose methods and related devices for forwarding uplink data, which are used for avoiding the resource waste caused by the repeated transmission of the uplink data on a Un interface in a handover scenario where the target node is a relay node (RN). An method provided in the embodiments of the present invention includes: receiving, by a donor base station with a relay node RN attached thereto, uplink data sent by a user equipment (UE), wherein the RN is a target node in handover; performing, by the donor base station, a handover preparation; sending, by the donor base station, a serial number status transfer message to the RN; and sending the received uplink data sent by the UE to a serving-gateway S-GW.

主权项

1. A method for forwarding uplink data, comprising:
receiving, by a donor base station, uplink data sent by a user equipment, wherein a relay node (RN) is attached to the donor base station and the RN is a target node in handover; performing, by the donor base station, a handover preparation with the relay node (RN) to handover the user equipment from a source node to the RN; sending, by the donor base station, a serial number status transfer message to the RN, wherein the serial number status transfer message is used for indicating receiving status information of the uplink data received by the source node; and sending, by the donor base station, the received uplink data sent by the user equipment to a serving-gateway (S-GW) after sending the serial number status transfer message to the RN.