Patent ID: 8385226
Filing Date: 2013-02-26
Classification: G01S,H04W

Abstract:
1. A method in a positioning node for providing geographic region data, the geographic region data comprises geographic position data, the positioning node being in a wireless communication system, the method comprising: receiving the geographic position data associated with location points of a first user equipment in the wireless communication system over a multitude of times, receiving first Evolved Universal Terrestrial Radio Access Network (E-UTRAN) radio fingerprints, based on a first signal propagation time measurement value measured with respect to the location points of the first user equipment over a multitude of times, associating the first E-UTRAN radio fingerprints with the geographic position data over a multitude of times, clustering the geographic position data based on similarities with the first E-UTRAN radio fingerprints, to create cluster boundaries defining the geographical region data, receiving a second E-UTRAN radio fingerprint, based on a second signal propagation time measurement value measured with respect to a location point of a second user equipment, in the wireless communication system, comparing the second E-UTRAN radio fingerprint received from the second user equipment with the first E-UTRAN radio fingerprints being associated with the geographic region data, and if the second E-UTRAN radio fingerprint corresponds to at least one of the first E-UTRAN radio fingerprints, associating the geographic region data of the first E-UTRAN radio fingerprints with the location point of the second user equipment, and providing the geographic region data, associated with the location point of the second user equipment.