The present invention refers to a method for operating a base station (13) of a wireless network (11). In order to augment the capacity of the network (11) and using the transmission resources (23, 29) efficiently, it is suggested that the method comprise communicating (49) with at least one terminal (15) of the network (11) via a first radio system (21) using centralized media access control for controlling an access to transmission resources (23) of the first radio system (21), communicating (51) with the at least one terminal (15) via a second radio system (31) different from the first radio system (21), and transmitting at least one resource grant message (61) to the terminal (15) via the first radio system (21), the resource grant message (61) indicating at least one portion of transmission resources (29) of the second radio system (31) assigned to the terminal (15). Furthermore the present invention refers to a corresponding method for operating the terminal (15), a corresponding base station (15) and a
