Collision-free transmission of sensor data of multiple sensors to a satellite

A method for transmitting sensor data from multiple sensors to a satellite, the method comprising:

• communicating available registration time slots by the satellite to all sensors within radio range that are eligible for sensor data transmission;
• selecting a registration time slot of the communicated registration time slots by each sensor of the sensors within the radio range;
• transmitting a registration message by a respective sensor to the satellite in the selected registration time slot, wherein the registration message contains a system-wide unique identifier of the respective sensor;
• storing, by the satellite, the system-wide unique identifier of the respective sensor and a current position of the satellite at which the satellite is located when the registration message is received;
• confirming a completed registration to the corresponding sensor by the satellite;
• sending, by the satellite, either:
• (1) a request message to a registered sensor for requesting sensor data, wherein the request message contains a reception period during which the satellite is ready to receive the sensor data of the registered sensor, and wherein specification of the reception period chosen by the satellite is based on the registration time slot chosen by the respective sensor, or (2) a common request message to a plurality of sensors, in which the common request message specifies a separate reception period for each sensor of the plurality of sensors for receiving the sensor data;
• and
• sending the sensor data to the satellite by the respective sensor within the reception period specified for the respective sensor in the request message.