Patent attributes
The embodiments herein uses sensor APs (e.g., APs that do not associate with client devices) to detect changes in physical topology that affect cell coverage areas and determine cell edges for different client devices. In one embodiment, using test signals (e.g., test probes) transmitted by the sensor APs which are received at normal APs which do associate with client devices, a controller can generate baselines which characterize the signals received from the sensor APs at the normal APs. At intervals or in response to an unexpected action by a client device, one or more of the sensor APs can transmit another test signal. Because the test signal can be received at multiple normal APs, the controller can compare the test signal to the baselines to identify whether there has been a change in physical topology that affects the cell coverage area for the client device.