Disclosed is a method by a docking center of assisting communication between a dockee and a peripheral device to which the docking center is connected, including transmitting, as a group owner of a first group, to the dockee, information for a direct connection between the dockee and the peripheral device, receiving an assist request for setting the direct connection based on the information, transmitting a response indicating whether the assist request is accepted, receiving a release request for releasing a connections between the dockee and the docking center and between the docking center and the peripheral device, terminating control of the peripheral device, receiving a joining request for requesting to join a second group, transmitting a response for joining the second group as a client, the dockee being set as a second group owner, and operating as the group owner of the first group and the client of the second group.