The embodiment of the invention provides a data forwarding method, a device and a system in a relay network. The method includes: service data unit of the first protocol data unit corresponding to the user equipment did not confirm the packet data convergence protocol encapsulation, second protocol data unit; to the target base station transmits the second protocol data unit; in order to make the target base station according to the second protocol data unit obtains the service data unit and the serial number, and according to the sequence number in sequence to the user equipment issued by the service data unit. The device comprises an encapsulation module and a first transmitting module. The system comprises a source relay node and a target base station. The embodiment of the invention of the PDCP UE package of unacknowledged data, transmitted to the target base station, the target base station sends the UE unacknowledged data, realizes lossless switching between the source and the target base station RN.
【技术实现步骤摘要】
【技术保护点】
1.一种中继网络中的数据转发方法,其特征在于,包括:对与用户设备未确认的第一协议数据单元对应的业务数据单元进行分组数据汇聚协议封装,得到第二协议数据单元,其中,所述第二协议数据单元中包括:所述业务数据单元,及所述第一协议数据单元中为所述业务数据单元分配的序列号;向目标基站发送所述第二协议数据单元;以使得所述目标基站根据所述第二协议数据单元获取所述业务数据单元及所述序列号,并根据所述序列号依序向所述用户设备下发所述业务数据单元。
【技术特征摘要】
【专利技术属性】
技术研发人员:焦斌,蔺波,张冬梅,
申请(专利权)人:华为技术有限公司,
类型:发明
国别省市:94[]
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