Method and apparatus for providing location information of user devices based on signal frequencies of transmitters

Patent metadata

Field	Value
Publication number	US-9557401-B2
Application number	US-201514946966-A
Country	US
Kind code	B2
Filing date	Nov 20, 2015
Priority date	May 29, 2012
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

An approach is provided for providing location information of user devices based on signal frequencies of transmitters. The positioning platform processes and/or facilitates a processing of one or more signals, from one or more transmitters, captured at one or more user devices to determine one or more frequencies of the one or more signals. Next, the positioning platform determines device location information of the one or more user devices based, at least in part, on the one or more frequencies.

First claim

What is claimed is:

1. A computer program product comprising at least one non-transitory computer-readable storage medium having computer-executable program code instructions stored therein, the computer-executable program code instructions comprising program code instructions to:
process one or more signals from one or more transmitters, the one or more signals captured at one or more devices to determine one or more frequencies of the one or more signals;
determine transmitter location information of the one or more transmitters from a database;
determine respective associations of the one or more signals and the one or more frequencies with the respective one or more transmitters;
filter the one or more signals based on the one or more associated frequencies to generate one or more output signals; and
determine device location information of the one or more devices based, at least in part, on the one or more frequencies, the transmitter location information, the respective associations of the one or more signals with the respective one or more transmitters, and the one or more output signals.

2. The computer program product of claim 1 , wherein the computer-executable program code instructions further comprise program code instructions to:
process the one or more output signals to determine one or more energy levels of the one or more output signals, wherein the device location information is further based on the one or more energy levels.

3. The computer program product of claim 2 , the computer-executable program code instructions further comprise program code instructions to:
determine one or more intersections of the one or more output signals based on the one or more energy levels, wherein the device location information is further based on the one or more intersections.

4. The computer program product of claim 1 , the computer-executable program code instructions further comprise program code instructions to:
cause a presentation of a map depicting the device location information based on the transmitter location information.

Assignees

• Nokia Technologies Oy

Inventors

• Sathish Sailesh Kumar
• Leppanen Jussi

Classifications

• G01S5/02521 Primary

  using a radio-map · CPC title

• G01S5/18 Primary

  using ultrasonic, sonic or infrasonic waves · CPC title

• G01S1/72

  using ultrasonic, sonic or infrasonic waves · CPC title

• G01S1/14

  using amplitude comparison of signals transmitted simultaneously from antennas or antenna systems having differently oriented overlapping directivity-characteristics · CPC title

• G01S5/26

  Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements (G01S5/28 takes precedence) · CPC title