A specific solution is: An idle ready-to-support terminal receives a system broadcast sent by a base station, acquires a channel quality parameter between the ready-to-support terminal and the base station according to the system broadcast, and if a first threshold is met, acquires a channel quality parameter between the benefited terminal and the ready-to-support terminal; and if a second threshold is met, the ready-to-support terminal generates a measurement event, and sends the measurement event to the base station, so that the base station sends a supporting-cooperation indication to the ready-to-support terminal according to the measurement event, and the terminal establishes a cooperative communication set with the benefited terminal according to the supporting-cooperation indication. The present invention is used to establish a cooperative communication between a base station and a terminal.