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:
Aug. 15, 2006
Filed:
Dec. 27, 2002
David Bevan, Bishops Stortford, GB;
Victor T Ermolayev, Nizhny Novgorod, RU;
Alexander G Flaksman, Nizhny Novgorod, RU;
Evgeny a Mavrichev, Nizhny Novgorof, RU;
David Bevan, Bishops Stortford, GB;
Victor T Ermolayev, Nizhny Novgorod, RU;
Alexander G Flaksman, Nizhny Novgorod, RU;
Evgeny A Mavrichev, Nizhny Novgorof, RU;
Nortel Networks Limited, St. Laurent, CA;
Abstract
The present invention relates to estimating the Angle of Arrival (AoA) of a signal from a user equipment received at a base station of a wireless telecommunications network where the base station has a multi-beam antenna. A signal received from a user equipment is received by the each of the multiple beams of the antenna, and the two adjacent beams receiving the highest amplitude from the end user are selected. A ratio of functions of the amplitudes of the two selected beams, such as a ratio of the difference between the amplitudes of the two beams to the sum of the amplitudes is calculated and compared to a data store of ratios. The data store stores expected ratios corresponding to AoAs and the calculated ratio is compared to the pre-calculated expected ratios to extract an estimate of the AoA of the signal from the user equipment.