The disclosure relates to a method and a system for a wireless data communication between a sensor system and a receiver capable of receiving analyte values sensed by the sensor system in a continuous analyte monitoring. The method includes establishing an unconnected mode operation for the system. The receiver receives a first data package broadcasted by the sensor system that has first status data indicative of a device status and/or an analyte value status. The first status data is processed by a receiver controller. A connected mode operation is established for the system responsive to determining at least one of a critical device status and a critical analyte value status. The establishing includes establishing a communication channel between the sensor system and the receiver and receiving a second data package transmitted by the sensor system in the receiver, the second data package comprising one or more analyte values.