There is described a method for operating a radio network for transferring data between several subscribers, in particular, between devices of process instrumentation in an automation system. At least one first subscriber communicates in a telegram the requests thereof relating to the frequency of the data transfer to other subscribers in a starting phase. During network optimization, a configuration device determines, in the radio network and according to the frequency of the requests of other subscribers, at least one communication partner to which a connection comprising the frequency of the data transfer, which is adapted to the other subscribers, is established. As the periods of data transfer are planned, it is possible to switch off the communication interface of the first subscriber in the pauses and also, to save energy.