Patent ID: 9144029
Filing Date: 2015-09-22
Classification: H04W

Abstract:
1. A method of downlink power optimization in a partitioned fixed wireless backhaul network comprising a plurality of nodes, wherein each node comprises at least one hub module, and each hub module serves one or more remote backhaul modules (RBMs) through hub-RBM radio links, the network being partitioned into a plurality of neighborhoods, each comprising a subset of the plurality of nodes, the method comprising: for each neighborhood independently, performing a downlink power optimization by optimizing a sum utility over the neighborhood comprising in-neighborhood utilities only; reporting power optimization data to a centralized processing unit; storing reported power optimization data for each neighborhood for look-up by the centralized processing unit; in the centralized processing unit, for each neighborhood, performing a downlink power optimization by optimizing a sum utility comprising in-neighborhood utilities and out-of-neighborhood utilities, said out-of-neighborhood utilities being obtained by an out-of-neighborhood utility evaluation of the stored power optimization data reported by other neighborhoods; and issuing hub transmit power update commands.