(12) United States Patent ao) Patent No.: Us 7,072,666 Bi
Kullman et al. (45) Date of Patent: Jul. 4,2006
(54) METHOD AND SYSTEM FOR
COMMUNICATING LOCATION IN A
CELLULAR WIRELESS SYSTEM
(75) Inventors: John Kullman, Olathe, KS (US); Jared A. Bohndorf, Olathe, KS (US); Rick Haught, Lawrence, KS (US)
(73) Assignee: Spring Spectrum L.P., Overland Park, KS (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 437 days.
(21) Appl. No.: 09/886,637
(22) Filed: Jun. 21, 2001
(51) Int. CI.
H04Q 7/20 (2006.01)
(52) U.S. CI 455/456.1; 455/404.2;
(58) Field of Classification Search 455/456.1,
455/456.3,457; 342/450 See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS 5,508,707 A * 4/1996 LeBlanc et al 342/457
5,764,188 A * 6/1998 Ghosh et al 342/457
5,873,040 A 2/1999 Dunn et al.
6,466,796 Bl * 10/2002 Jacobson et al 455/456.3
2002/0151313 Al* 10/2002 Stead 455/456
2002/0193121 Al* 12/2002 Nowak et al 455/456
Scot Drysdale, "Voronoi Diagrams: Applications from Archaology to Zoology," Regional Geometry Institute, Smith College, Jul. 19, 1993.
* cited by examiner
Primary Examiner—Charles N. Appiah
Assistant Examiner—Bryan Fox
A method and system for communicating location information in a cellular wireless system. Each sector in a coverage area is characterized by a polygon of influence with respect to the other sectors. The polygon of influence is then used as a basis to characterize the scope or position of the sector and, particularly, the location of a mobile station that is operating in the sector. A location-based-service provider can then use that polygon of influence based location information to facilitate providing a location-based service.
33 Claims, 8 Drawing Sheets