Verifying stored location data for WLAN access points
9 Assignments
0 Petitions
Accused Products
Abstract
An apparatus receives information on a first set of wireless local area network access points obtained in a scan at a single location, the information including at least an identifier of each access point. The same or another apparatus retrieves from a database, based on the identifiers, location data for a second set of access points, the second set of access points comprising access points of the first set of access points for which location data is available in the database. The same or another apparatus determines, based on retrieved location data for the second set of access points and on a predetermined criterion, whether location data for any of the access points of the second set of access points represent an outlier. The same or another apparatus provides identifiers for a third set of access points that are not to be used for positioning purposes, the third set of access points comprising access points of the second set of access points for which the retrieved location data has been determined to represent outliers.
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Citations
35 Claims
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1-19. -19. (canceled)
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20. A method by at least one apparatus, the method comprising:
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receiving information on a first set of wireless local area network access points obtained in a scan at a single location, the information including at least an identifier of each access point; retrieving from a database, based on the identifiers, location data for a second set of access points, the second set of access points comprising access points of the first set of access points for which location data is available in the database; determining, based on retrieved location data for the second set of access points and on a predetermined criterion, whether location data for any of the access points of the second set of access points represent an outlier; and providing identifiers for a third set of access points that are not to be used for positioning purposes, the third set of access points comprising access points of the second set of access points for which the retrieved location data has been determined to represent outliers. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A system comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause at least one apparatus at least to perform:
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receive information on a first set of wireless local area network access points obtained in a scan at a single location, the information including at least an identifier of each access point; retrieve from a database, based on the identifiers, location data for a second set of access points, the second set of access points comprising access points of the first set of access points for which location data is available in the database; determine, based on retrieved location data for the second set of access points and on a predetermined criterion, whether location data for any of the access points of the second set of access points represent an outlier; and provide identifiers for a third set of access points that are not to be used for positioning purposes, the third set of access points comprising access points of the second set of access points for which the retrieved location data has been determined to represent outliers. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A non-transitory computer readable storage medium in which computer program code is stored, the computer program code when executed by a processor causing at least one apparatus to perform the following:
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receive information on a first set of wireless local area network access points obtained in a scan at a single location, the information including at least an identifier of each access point; retrieve from a database, based on the identifiers, location data for a second set of access points, the second set of access points comprising access points of the first set of access points for which location data is available in the database; determine, based on retrieved location data for the second set of access points and on a predetermined criterion, whether location data for any of the access points of the second set of access points represent an outlier; and provide identifiers for a third set of access points that are not to be used for positioning purposes, the third set of access points comprising access points of the second set of access points for which the retrieved location data has been determined to represent outliers.
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Specification