The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2007
Filed:
Aug. 06, 2003
Yi Gong, Nanjing, CN;
Hang Ching Jason Leung, Yuen Long, HK;
Mario Joa-ng, Ma On Shan, HK;
Piu Bill Wong, Causeway Bay, HK;
Soung Chang Liew, Shatin, HK;
Yan Wang, Clear Water Bay, HK;
Yi Gong, Nanjing, CN;
Hang Ching Jason Leung, Yuen Long, HK;
Mario Joa-Ng, Ma On Shan, HK;
Piu Bill Wong, Causeway Bay, HK;
Soung Chang Liew, Shatin, HK;
Yan Wang, Clear Water Bay, HK;
Abstract
Disclosed are systems and methods which provide for location positioning in wireless networks using techniques which are adapted to provide reliable location determinations even in complex topological environments. Embodiments utilize multiple antenna patterns, such as may be provided using phased array antennas, and implement location positioning techniques which do not require alteration of remote stations in providing location positioning. Various techniques for determining location may be implemented, including a channel model independent approach, a channel model based approach, or combinations thereof. A channel model independent approach used in providing location positioning may compare receive signal strength differences to an antenna gain difference table to determine an angle in the azimuth that a remote station is located. A channel model based approach used in providing location positioning may compare receive signal strength measurements to a database of signal strengths created using a wireless channel model.