The receiving unit 1210 is configured to receive a second layer-2 PDU sent by relay terminal equipment. The second layer-2 PDU is generated by the relay terminal equipment according to a first layer-2 PDU sent by sender equipment. The first layer-2 PDU contains identification information of a remote terminal equipment, or the first layer-2 PDU is scheduled through a PDCCH scrambled by adopting an RNTI of the remote terminal equipment.
The processing unit 1220 is configured to determine the remote terminal equipment corresponding to the second layer-2 PDU received by the receiving unit 1210.
Here, the sender equipment is the remote terminal equipment and the device 1200 is network equipment, or the sender equipment is the network equipment and the device 1200 is the remote terminal equipment.
Optionally, the identification information of the remote terminal equipment includes a terminal equipment identifier of the remote terminal equipment or a layer-2 identifier of the remote terminal equipment.
Optionally, if the device 1200 is the remote terminal equipment, the second layer-2 PDU contains the terminal equipment identifier of the remote terminal equipment. In such case, the processing unit 1220 is specifically configured to determine the remote terminal equipment corresponding to the second layer-2 PDU according to the terminal equipment identifier contained in the second layer-2 PDU.