Patent ID: 6553234
Filing Date: 2003-04-22
Classification: H04W

Abstract:
In a fixed wireless network utilizing an assigned group of frequency channels and comprising iÃ—j cells, wherein each of said cells is divided into an even number of at least four sectors, and wherein each of said cells includes a base station and a plurality of terminal stations, a method of frequency reuse comprising the steps of:(a) receiving input data including; (i) a desired carrier to interference ratio; (ii) the number of said cells in said network; and (iii) the number of said frequency channels available; (b) calculating a reuse distance based on said desired carrier to interference ratio; (c) calculating a cluster size based on said calculated reuse distance; (d) determining the position and number of interference zones within each of said sectors, wherein said interference zones are a function of said cluster size; (e) assigning frequency channels to said interference zones; (f) determining which of said allotted frequency channels cannot be used within a specified one of said cells; (g) determining which of said allotted frequency channels cannot be used within a specified one of said sectors; and (h) assigning any remaining ones of said allotted frequency channels to one or more neutral zones extending between said interference zones.