In particular, according to an embodiment the current channel is located at a current frequency centered in the current frequency interval and the new channel is located at a new frequency centered in the new frequency interval. The new frequency interval could be selected such that the new frequency is located outside the current frequency interval. In other aspects the new channel is located in the same frequency interval as the current channel. This could be the case where the RSSI measurements of the network node 200 indicate that the current frequency interval is still the best choice for placing the new channel, although the RSSI measurements from the wireless devices 300a, 300b triggers the network node 200 to perform channel reconfiguration.

In further aspects, the new frequency (i.e., the frequency of the new channel) could be selected to have a certain frequency separation to the one or more neighbour frequencies with strong interference detected by the wireless devices 300a, 300b. That is, according to an embodiment the new frequency interval is selected to be distanced to at least one of the at least one further frequency as well as to the current frequency (or even to the current frequency interval). Thereby, if there are wireless devices 300a, 300b reporting high RSSI measurements from one or more neighbor frequencies, the network node 200a will reconfigure the channel based on RSSI measurements made by the network node 200 itself and make sure that the new channel has a safe distance to any neighbouring frequencies with high RSSI as reported by the wireless devices 300a, 300b.