Device and method for the power adjustment of a WLAN network

A device for adjusting the power of a WLAN network in an interior of a motor vehicle, the device comprising:

• a first WLAN module in the interior, the first WLAN module adapted to communicate with at least one second WLAN module in the interior;
• and
• at least one reference WLAN module,
• wherein an antenna of the first WLAN module is positioned at a first location of the motor vehicle, an antenna of the reference WLAN module is positioned at a second location of the motor vehicle spaced apart from the first location and outside of the motor vehicle, the reference WLAN module is configured to determine a signal strength of signals received from the first WLAN module and to transmit the determined signal strength to the first WLAN module, the first WLAN module is configured to adjust a transmission power of the first WLAN module based on the determined signal strength until the received signal strength at the reference WLAN module is less than a first predefined threshold value so that a signal strength of signal transmissions outside of the interior is minimized to minimize interference with other networks outside of the motor vehicle, and the first WLAN module is further configured to adjust the transmission power of the first WLAN module based on the determined signal strength so that the received signal strength at the reference WLAN module is greater than a second predefined threshold value to provide at least a minimum signal strength to the at least one second WLAN module between the first WLAN module and the reference WLAN module.