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:
Feb. 07, 2012
Filed:
Nov. 15, 2007
Applicants:
Vuokko Nurmela, Espoo, FI;
Kimmo Kalliola, Helsinki, FI;
Antti P. Kainulainen, Espoo, FI;
Joni Jantunen, Helsinki, FI;
Inventors:
Vuokko Nurmela, Espoo, FI;
Kimmo Kalliola, Helsinki, FI;
Antti P. Kainulainen, Espoo, FI;
Joni Jantunen, Helsinki, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an apparatus and method for estimating the distance between a transmitter and a receiver. A method comprising obtaining a signal from a receiver; determining whether the signal more likely propagated through a line-of-sight (LOS) radio channel or a non lme-of-sight (NLOS) radio channel; using a model including parameters selected according to the radio channel to estimate the distance between the receiver and a transmitter which sent the signal.