Patent ID: 8670369

Claim:
A method for processing data in a relay link, comprising: processing, by a relay node by using a first protocol stack, data received by a forwarding layer of the relay node, wherein the first protocol stack comprises a first Media Access Control (MAC) layer that is configured to define a media access protocol and a Radio Link Control (RLC) layer that is configured to define a radio link protocol, the RLC layer is adjacent to the first MAC layer, the RLC layer is configured to generate a plurality of RLC protocol data units (PDUs) with a corresponding user identifier for the data received by the forwarding layer of the relay node, wherein the forwarding layer is different from the RLC layer and the first MAC layer, and the first MAC layer is configured to perform tunnel processing on the data received by the forwarding layer of the relay node, wherein each of the plurality of RLC PDUs are generated according to resources allocated by the first MAC and the plurality of RLC PDUs are aggregated according to the corresponding user identifier to form a MAC PDU tunnel packet for the tunnel processing on the received data.