Patent ID: 7570956
Filing Date: 2009-08-04
Classification: H01Q,H04W

Abstract:
1. A method of controlling radio resources in a cellular wireless network comprising a plurality of fixed antennas providing overlapping radio coverage, the method comprising: each of plural base stations with respective fixed antennas dynamically adjusting the shape of the radiation patterns pattern footprint of the respective fixed antenna antennas using distributed co-operative control, wherein the distributed co-operative control includes each base station adjusting the radiation pattern footprint of the respective fixed antenna in response to a negotiation between the plural base stations based on overall loading of the plural antennas taking into account surrounding base station traffic loadings and antenna physical constraints, in the negotiation each base station conducting a bi-directional information exchange process with adjacent base stations to co-operatively arrive at an adjusted radiation pattern footprint for each base station optimizing the overlapping radio coverage.