Patent ID: 7072666
Filing Date: 2006-07-04
Classification: H04W

Abstract:
1. In a cellular wireless system having a plurality of sectors, wherein each sector of the plurality of sectors defines a respective geographic origin, a method of communicating a geographic location of a given sector, so as to facilitate a location-based service with respect to the given sector, the method comprising: establishing a PI-based location to represent the given sector, wherein establishing the PI-based location to represent the given sector comprises geometrically establishing a polygon of influence for the origin of the given sector with respect to the origins of adjacent sectors, and wherein geometrically establishing the polygon of influence for the origin of the given sector with respect to the origins of adjacent sectors comprises (i) making a list of connecting lines that connect the origin of the given sector to origins of adjacent sectors, (ii) making a list of potential edge lines including perpendicular bisectors of each connecting line, (iii) clipping the potential edge lines where they intersect each other, and retaining as edge lines a piece of each clipped potential edge line closest to the origin of the given sector, and (iv) connecting the edge lines so as to form the polygon of influence; and communicating the PI-based location as a representation of the geographic location of the given sector, whereby the location-based service is performed based on the PI-based location.