Patent ID: 9119085
Filing Date: 2015-08-25
Classification: G01S,H04W

Abstract:
1. A method in a positioning server for collecting radio fingerprint positioning data for a radio access network (RAN) comprising the steps of: collecting from a least one first node a plurality of positioning data records, wherein each positioning data record comprises a determined geographical position and a set of determined radio network communication parameters including the identity of at least one radio cell, and wherein the set of determined radio network communication parameters are associated with the determined geographical position; storing the collected positioning data records; grouping positioning data records having a same set of radio network parameters in a cluster; when the cluster comprises a certain number of collected positioning data records, computing a geometrical shape representing a geographical area based on geographical position data in the collected positioning data records in the cluster; receiving from a second node a notification that at least one of a plurality of configuration parameters for an identified radio cell has changed; and erasing from the cluster, positioning data records comprising the identified radio cell if a value of the at least one configuration parameter has changed beyond a predefined value range.