via the interface not shown fig2 exemplary shows a flow chart illustrating an embodiment 400 of an operating method of operating a mobile terminal for participating in a mobile network for instance the mobile terminal 100 depicted in fig1 can be operated according to the method 400 depicted in fig2 the mobile terminal is preferably configured to be operated in a normal mode of operation which involves a transmission of payload data and in a low power mode of operation which does not involve a transmission of payload data in a first step 410 a presence of a first possible connection to the mobile network and a second possible connection to the mobile network is detected the first possible connection being a connection of a first technology and the second possible connection being a connection of a second technology in a second step 420 it is identified which of the first possible connection and the second possible connection causes less energy consumption in the mobile terminal in its low power mode of operation than the other due to a difference between the first and second technology in a third step 430 the mobile terminal is connected to the mobile network through the identified possible connection in a similar manner fig3 shows exemplary a flow.