COLLECTING POSITIONING REFERENCE DATA

• US 20140335894A1
• Filed: 01/23/2012
• Published: 11/13/2014
• Est. Priority Date: 01/23/2012
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Nokia Corporation
• Inventors: Wirola, Lauri Aarne Johannes
• Granted Patent: US 9,955,309 B2
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G01C 21/206 specially adapted for indoor navigation
• CPC Class Codes: G01S 5/02525 Gathering the radio frequency fingerprints
• CPC Class Codes: G01S 5/0278 involving statistical or probabilistic considerations G01S5/0252, G01S5/0294 take precedence
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

It is inter alia disclosed to obtain or generate a plurality of sets of positioning reference data, at least one set of positioning reference data of the plurality of set of positioning reference data comprising a respective position information obtained or generated based on position-related information from at least one sensor, and comprising a respective signal characteristic representation associated with at least one received signal from at least one wireless coverage providing entity.

Claims

1-19. -19. (canceled)

20. A method performed by an apparatus, said method at least comprising generating or obtaining a plurality of sets of positioning reference data, at least one set of positioning reference data of the plurality of sets of positioning reference data comprising:

a respective position information obtained or generated based on position-related information from at least one sensor, and

a respective signal characteristic representation associated with at least one received signal from at least one wireless coverage providing entity,

further comprising obtaining at least one manual position information associated with at least one position information received from a user interface,

correcting at least one position information of a set of positioning reference data of said plurality of sets of positioning reference data based on at least one manual position information of said at least one manual position information, wherein said at least one manual position are at least two manual positions, said correcting comprising;

estimating a trajectory representation between a first manual position information and a second manual position information, and

correcting at least one position information based on the estimated trajectory representation.

21. The method according to claim 20, wherein said estimating a trajectory representation is based on the position information of at least one set of positioning reference data obtained or generated between the first manual position information and the second manual position.

22. The method according to claim 20, wherein said at least one set of positioning reference data is generated or obtained further based on indoor map information.

23. The method according to claim 22, comprising checking whether a respective position information of a set of positioning reference data does not match with the indoor map information, and if the checking yields a positive result, correcting said respective position information based on the indoor map information.

24. The method according to claim 22, wherein said indoor map information comprises probability distribution information associated with indoor information.

25. The method according to claim 20, comprising obtaining an initial direction information.

26. The method according to claim 20, wherein at least one of said at least one sensor represents an inertial sensor.

27. The method according to claim 20, wherein said generating or obtaining the plurality of sets of position reference data is performed in predetermined time intervals and/or performed distance-based and/or after a predetermined number of steps is counted.

28. The method according to claim 20, comprising determining a route in an indoor environment based on indoor map information, wherein the route is configured to guide a user through the indoor environment in order to generate or obtain said plurality of sets of positioning reference data when the user walks the route.

29. A computer program stored on a non-transitory tangible computer-readable medium which when loaded upon a processor enables the processor to generate or obtain a plurality of sets of positioning reference data, at least one set of positioning reference data of the plurality of sets of positioning reference data comprising;

a respective positioning information obtained or generated based on position-related information from at least one sensor, and

a respective characteristic representation associated with at least one received signal from at least one wireless coverage providing entity, and further

to obtain at least one manual position information associated with at least one position information received from a user interface, and

wherein performing corrections to at least one position information of a set of positioning reference data of said plurality of sets of positioning reference data is based on at least one manual position information of said at least one manual position information

wherein said at least one manual position comprise at least two manual positions, said correcting comprising;

estimation of a trajectory representation between a first and second manual position information, and

correcting at least one position information based on the estimated trajectory representation.

30. An apparatus, comprising at least one processor;

and at least one memory including computer program code, said at least one memory and said computer program code configured to, with said at least one processor, cause said apparatus at least to;

generate or obtain a plurality of sets of positioning reference data, at least one set of positioning reference data of the plurality of sets of positioning reference data comprising;

a respective position information obtained or generated based on position-related information from at least one sensor, and

a respective signal characteristic representation associated with at least one received signal from at least one wireless coverage providing entity,

further wherein said apparatus is caused to obtain at least one manual position information associated with at least one position information received from a user interface,

wherein correction of at least one position information of a set of positioning reference data of said plurality of sets of positioning reference data is based on at least one manual position information of said at least one manual position information, wherein said at one manual position are at least two manual positions, said correction comprising;

estimation of a trajectory representation between a first manual position information and a second manual position information, and

correction of at least one position information based on the estimated trajectory representation.

31. The apparatus according to claim 30, wherein said estimation of a trajectory representation is based on the position information of at least one set of positioning reference data obtained or generated between the first manual position information and the second manual position.

32. The apparatus according to claim 30, wherein said at least one set of positioning reference data is generated or obtained further based on indoor map information.

33. The apparatus according to claim 32, comprising checking whether a respective position information of a set of positioning reference data does not match with the indoor map information, and if the checking yields a positive result, correcting said respective position information based on the indoor map information.

34. The apparatus according to claim 32, wherein said indoor map information comprises probability distribution information associated with the indoor information.

35. The apparatus according to claim 30, comprising obtaining an initial direction information.