The method of processing data in the relay link, the relay node system, and

Providing relay link data processing method, apparatus and system. Wherein, in a relay link method for processing data, comprising: a relay node using a first protocol stack for processing incoming data relay node, a first protocol stack includes a first MAC layer for defining media access protocol and the RLC layer defines a radio link protocol; wherein a first MAC layer for data tunneling process. Yet another method of processing data in the relay link, comprising: a relay node using the second protocol stack for processing incoming data relay node, the second protocol stack comprising a MAC layer for defining media access protocol for defining a first RLC layer and a PDCP packet data convergence protocol layer defines a radio link protocol; wherein, a first PDCP layer is used to tunnel data processing. Employed in the embodiment of the present invention, the protocol stack embodiment of the data processing, flexible scheduling on the relay link, scheduling overhead is reduced on the relay link.