Supporting a collaborative collection of data

Patent metadata

Field	Value
Publication number	US-10139471-B2
Application number	US-201415532717-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Dec 4, 2014
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

An apparatus obtains fingerprints that have been collected by a plurality of mobile devices at a particular site for supporting a positioning of other mobile devices, each fingerprint comprising results of measurements on radio signals of at least one communication node at a particular location and an indication of the particular location. The apparatus generates feedback information based on the obtained fingerprints as a whole for coordinating a collection of fingerprints by the plurality of mobile devices. The apparatus transmits the feedback information to the plurality of mobile devices for presentation to users of the mobile devices.

First claim

What is claimed is:

1. A method comprising, performed by at least one apparatus:
obtaining fingerprints that have been collected by a plurality of mobile devices at a particular site for supporting a positioning of other mobile devices, each fingerprint comprising results of measurements on radio signals of at least one communication node at a particular location and an indication of the particular location;
generating feedback information based on the obtained fingerprints as a whole for coordinating a collection of fingerprints by the plurality of mobile devices, wherein the feedback information relates to a coverage of the obtained fingerprints collected from the plurality of mobile devices; and
transmitting the feedback information to the plurality of mobile devices for presentation to users of the mobile devices.

2. The method according to claim 1 , wherein generating feedback information comprises assembling a list of locations for which measurements have been provided in the fingerprints, for coordinating the collection of fingerprints by the plurality of mobile devices.

3. The method according to claim 1 , wherein the feedback information relates to a quality of radio model data, the method further comprising at least one of:
generating radio model data for a radio model for each of a plurality of communication nodes based on the obtained fingerprints, the radio model data for each radio model comprising an estimated location of a communication node, and determining a quality of each of the radio models, wherein generating feedback information comprises assembling a list including for each of the communication nodes the estimated location of the communication node and an indication of a quality of the radio model; and/or
generating radio model data for a radio model for each of a plurality of communication nodes based on the obtained fingerprints, the radio model data for each radio model comprising an estimated location of a communication node, determining a quality of each of the radio models, and computing a proportion of radio models with associated indication of high quality to all radio models wherein generating feedback information comprises providing an indication of the computed proportion; and/or
assigning for communication nodes, for which measurement results are included in the obtained fingerprints, signal strength related values to areas of at least one grid representing the particular site, determining for each assigned signal strength related value an uncertainty value, and determining areas for which a ratio of a number of signal strength values assigned to a respective area with an uncertainty value falling short of a predetermined threshold to one of a number of all signal strength values assigned to the respective area and a number of communication nodes from which signals are expected to be detected in an area of the site corresponding to the respective area falls short of a predetermined threshold, wherein generating feedback information comprises assembling a list including an indication of the determined areas as areas with poor radio model data quality; and/or
assigning for communication nodes, for which measurement results are included in the obtained fingerprints, signal strength related values to areas of at least one grid representing the particular site, determining for each assigned signal strength related value an uncertainty value, determining areas for which a ratio of a number of signal strength values assigned to a respective area with an uncertainty value falling short of a predetermined threshold to one of a number of all signal strength values assigned to the respective area and a number of communication nodes from which signals are expected to be detected in an area of the site corresponding to the respective area falls short of a predetermined threshold as areas with poor radio model data quality, and computing a proportion of areas with poor radio model data quality to all areas of the at least one grid, wherein generating feedback information comprises providing an indication of the computed proportion; and/or
assigning for communication nodes, for which measurement results are included in the obtained fingerprints, signal strength related values to grid points of at least one grid representing the particular site, determining for each assigned signal strength related value an uncertainty value, determining grid points for which a ratio of a number of signal strength values assigned to a respective grid point with an uncertainty value falling short of a predetermined threshold to one of a number of all signal strength values assigned to the respective grid point and a number of communication nodes from which signals are expected to be detected in an area of the site corresponding to the respective grid point falls short of a predetermined threshold, wherein generating feedback information comprises assembling a list including an indication of the determined grid points as grid points with poor radio model data quality; and/or
assigning for communication nodes, for which measurement results are included in the obtained fingerprints, signal strength related values to grid points of at least one grid representing the particular site, determining for each assigned signal strength related value an uncertainty value, determining grid points for which a ratio of a number of signal strength values assigned to a respective grid point with an uncertainty value falling short of a predetermined threshold to one of a number of all signal strength values assigned to the respective grid point and a number of communication nodes from which signals are expected to be detected in an area of the site corresponding to the respective grid point falls short of a predetermined threshold as grid points with poor radio model data quality, and computing a proportion of grid points having poor quality to all grid points of the at least one grid, wherein generating feedback information comprises providing an indication of the computed proportion.

4. The method according to claim 3 , further comprising receiving, by a particular mobile device, feedback information, and at least one of:
if the feedback information includes a list of estimated locations of communication nodes and an associated indication of a quality of a radio model, presenting, by the particular mobile device, a map with an indication of the estimated locations and the associated quality of a radio model to a user; and/or
if the feedback information includes a list of estimated locations of communication nodes and an associated indication of a quality of a radio model, computing, by the particular mobile device, a proportion of radio models with associated indication of high quality to all radio models and presenting an indication of the proportion to a user as indicator of data sufficiency; and/or
if the feedback information includes a list including at least an indication of areas with poor radio model data quality, presenting, by the particular mobile device, a map with at least an indication of the areas with poor radio model data quality; and/or
if the feedback information includes a list including at least an indication of areas with poor radio model data quality, computing, by the particular mobile device, a proportion of areas with poor radio model data quality to all areas of the at least one grid and presenting an indication of the proportion to a user as indicator of data sufficiency; and/or
if the feedback information includes a list including at least an indication of grid points with poor radio model data quality, presenting, by the particular mobile device, a map with at least an indication of the grid points having poor quality; and/or
if the feedback information includes a list including at least an indication of grid points with poor ra

Assignees

• Here Global Bv

Inventors

• Ivanov Pavel
• Syrjärinne Jari
• Khan Muhammad Irshan
• Wirola Lauri

Classifications

• G01S5/02525

  Gathering the radio frequency fingerprints · CPC title

• H04W64/003

  locating network equipment · CPC title

• H04L41/145

  involving simulating, designing, planning or modelling of a network · CPC title

• G01S5/0252 Primary

  Radio frequency fingerprinting · CPC title

• G06F17/30

  Physics · mapped topic