Method and device for relay transmission

A method of relay transmission, comprising:

• receiving, by a relay terminal device, a data packet sent to a remote terminal device by a network device;
• performing, by the relay terminal device, encapsulation processing on data contained in the data packet in an ADPtive (ADP) layer of layer 2 to obtain an ADP-layer Protocol Data Unit (PDU), the ADP-layer PDU containing identifier information of the remote terminal device;
• and
• sending, by the relay terminal device, the ADP-layer PDU to the remote terminal device.

A device of relay transmission, comprising a processor and one or more units stored on a memory, the one or more units comprising:

• a receiving unit, configured to receive an ADPtive (ADP)-layer Protocol Data Unit (PDU) sent to a network device by a remote terminal device, the ADP-layer PDU containing identifier information of the remote terminal device and the ADP-layer PDU being obtained by performing, by the remote terminal device, encapsulation processing on data contained in the ADP-layer PDU in an ADP layer of layer 2;
• a processing unit, configured to acquire the identifier information, contained in the ADP-layer PDU received by the receiving unit, of the remote terminal device in an ADP layer of layer 2;
• and
• a sending unit, configured to forward the data contained in the ADP-layer PDU to the network device according to the identifier information, acquired by the processing unit, of the remote terminal device.