According to the disclosure of the present description, a method in which a terminal cooperates with another terminal to transmit data to a base station is provided. The method comprises the following steps: if data to be transmitted to a base station exists, mutually exchanging data with another cooperative terminal which belongs to the same cooperative cluster; transmitting, to the base station, a request message for an allocation of an uplink resource for transmitting the data; receiving, from the base station, a permission message for the uplink resource; and, upon receipt of the permission message, transmitting the data and data of said other terminal using the uplink resource in accordance with the permission message.