A method for enabling radioelectric coexistence between two devices based on personal mobile radio or Private Mobile Radio (PMR) technology, of which one is a narrow band device and the other is a broadband device, and each device interacts via a radioelectric link with respective base stations connected to corresponding control units for the radio resource of their respective networks, the method comprising:
- detecting the presence of a narrow band radioelectric device in the vicinity of the broadband device;
- transmitting a message on the broadband network directed to the control unit of the broadband network to indicate the presence of a possible narrow band device close to the broadband device;
- and
- assigning, by the control unit of the broadband network, new frequency blocks for uplinks, only in predefined allocated periods.