Relay user equipment, comprising: a receiving unit, configured to receive a first message sent by a network server, wherein the first message comprises first information, and the first information indicates a data channel sidelink resource allocated by the network server to at least one corresponding remote user equipment; a processing unit, configured to determine, based on the first message, a second message corresponding to the at least one remote user equipment; and a sending unit, configured to send the second message corresponding to the at least one remote user equipment to the corresponding remote user equipment, wherein the second message comprises the first information of the remote user equipment; wherein the first message further comprises second information, and the second information indicates a control channel sidelink resource allocated by the network server to the corresponding remote user equipment; and wherein the first message is in a first form in which the first message further comprises third information allocated by the network server to the at least one remote user equipment, and the third information indicates a forwarding resource used by the relay user equipment to forward the second message of the at least one remote user equipment; the first information and the second information of the at least one remote user equipment are encapsulated into a first MAC CE in the first message for sending, and the first MAC CE further comprises an identifier of the at least one remote user equipment; and the third information of the at least one remote user equipment is encapsulated into a second MAC CE in the first message for sending, and the second MAC CE further comprises the identifier of the at least one remote user equipment; or wherein the first message is in a second form in which the first message further comprises third information allocated by the network server to the at least one remote user equipment, and the third information indicates a forwarding resource used by the relay user equipment to forward the second message of the at least one remote user equipment; and the first information, the second information, and the third information of the remote user equipment are encapsulated into a first MAC CE in the first message for sending, and the first MAC CE further comprises an identifier of the remote user equipment; wherein the first message is in the first form or the second form based on a quantity of the remote user equipment. a receiving unit, configured to receive a first message sent by a network server, wherein the first message comprises first information, and the first information indicates a data channel sidelink resource allocated by the network server to at least one corresponding remote user equipment; a processing unit, configured to determine, based on the first message, a second message corresponding to the at least one remote user equipment; and a sending unit, configured to send the second message corresponding to the at least one remote user equipment to the corresponding remote user equipment, wherein the second message comprises the first information of the remote user equipment; wherein the first message further comprises second information, and the second information indicates a control channel sidelink resource allocated by the network server to the corresponding remote user equipment; and wherein the first message is in a first form in which the first message further comprises third information allocated by the network server to the at least one remote user equipment, and the third information indicates a forwarding resource used by the relay user equipment to forward the second message of the at least one remote user equipment; the first information and the second information of the at least one remote user equipment are encapsulated into a first MAC CE in the first message for sending, and the first MAC CE further comprises an identifier of the at least one remote user equipment; and the third information of the at least one remote user equipment is encapsulated into a second MAC CE in the first message for sending, and the second MAC CE further comprises the identifier of the at least one remote user equipment; or wherein the first message is in a second form in which the first message further comprises third information allocated by the network server to the at least one remote user equipment, and the third information indicates a forwarding resource used by the relay user equipment to forward the second message of the at least one remote user equipment; and the first information, the second information, and the third information of the remote user equipment are encapsulated into a first MAC CE in the first message for sending, and the first MAC CE further comprises an identifier of the remote user equipment; wherein the first message is in the first form or the second form based on a quantity of the remote user equipment.