(54) METHOD FOR ASCERTAINING A DYNAMIC ATTRIBUTE OF A SYSTEM
(75) Inventor: William Hawe, Hollis, NH (US)
(73) Assignee: Autocell Laboratories, Inc., Acton, MA (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 258 days.
(21) Appl. No.: 10/781,222
(22) Filed: Feb. 18, 2004
(65) Prior Publication Data
US 2004/0235465 Al Nov. 25, 2004
Related U.S. Application Data
(60) Provisional application No. 60/472,320, filed on May 21, 2003, provisional application No. 60/472,239, filed on May 21, 2003, provisional application No. 60/466,448, filed on Apr. 29, 2003, provisional application No. 60/449,602, filed on Feb. 24, 2003.
(51) Int. CI.
H04Q 7/20 (2006.01)
(52) U.S. CI 455/450; 455/451; 455/452.1;
(58) Field of Classification Search 455/450,
455/451, 452.1, 452.2, 456.6, 525; 342/350,
See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS 5,493,694 A 2/1996 Vlcek et al.
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.
3 Claims, 62 Drawing Sheets