CPC Class H04W

A spectrum management device (110) determines spectrum assignments (205, 215) for a radio access node (120). The spectrum assignments (205, 215) comprise an access spectrum assignment (205) and a failover spectrum assignment (215) for replacing at least part of the access spectrum assignment (205) responsive to a conflict between the radio access node (120) and an incumbent user (130) with respect to the access spectrum assignment (205). The radio access node (120) is notified of the spectrum assignments (205, 215), and in response, the radio access node (120) commences radio communications according to the access spectrum assignment (205). In response to receiving notification to discontinue use of the at least part of the access spectrum assignment (205), the radio access node (120) replaces the at least part of the access spectrum assignment (205) with at least part of the failover spectrum assignment (215).

A network controller of a communication network that serves one or more communication devices controls placement of one or more communication devices, such as a range extender, in the communication network. The network controller can control a communication device (e.g., a mobile device) and an access point serving the communication device to measure one or more wireless characteristics to generate first and second measurement information, respectively. The network controller can determine a placement score based on the first measurement information and the second measurement, and determine a placement location of the ranger extender within the communication network based on the placement score. The network controller can provide the placement location to the communication device and/or the range extender to indicate the placement location in which the range extender is to be positioned within the communication network.