A method and device for controlling access to a limited access spectrum, the method including: authorizing a mobile communications device in a predefined geographic area to communicate via the limited access spectrum, wherein access by the mobile communications device to the limited access spectrum is based on a user profile defining access rights to the limited access spectrum; determining a load level of communications on the limited access spectrum in the predefined geographic area; and allocating a communications timing parameter to the mobile communications device based on the load level. In addition, the communications timing parameter may be further based on a priority status of a recipient of the communication from the mobile communications device.