A portable electronic device comprises a first wireless interface and a second wireless interface. The first wireless interface is controlled to perform a control signaling with a further device over the first wireless interface. The second wireless interface is selectively activated to transmit data traffic to the further device and/or to receive the data traffic from the further device over the second wireless interface. The first wireless interface is maintained in an activated state to control the data traffic over the second wireless interface by the control signaling over the first wireless interface while the second wireless interface is activated.