Patent ID: 6977912

Claim:
A method of dynamic frequency allocation for use in a wireless communications network geographically arranged into regions, each region containing at least one fixed base station and one or more subscriber terminals, communications between the fixed base station and the one or more subscriber terminals in each region taking place over an allocated one of a plurality of communications channels available for use by the network, the method comprising the steps of: (a) monitoring the radio conditions on at least the allocated channel in each region; (b) generating channel metrics including a metric for unrecoverable channel distortion corresponding to the monitored radio conditions on the channel; and (c) reallocating a different channel to at least those regions where the generated channel metrics including the metric for unrecoverable channel distortion indicate that the allocated channel in those regions is suffering interference; wherein steps (a), (b) and (c) are continuously repeated in order whereby channels may be dynamically reallocated to regions during continuous network operation.