| 摘要 |
<p>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.</p> |
