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RADIO FINGERPRINT METHOD IN A POSITIONING NODE FOR PROVIDING GEOGRAPHIC REGION DATA

  • US 20110039580A1
  • Filed: 06/24/2008
  • Published: 02/17/2011
  • Est. Priority Date: 04/25/2008
  • Status: Active Grant
First Claim
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1. A method in a positioning node for providing geographic region data, the geographic region data comprises geographic position data, the positioning node is comprised in a wireless communication system, the method comprising:

  • receiving geographic position data associated with a location point of a first user equipment comprised in the wireless communication system, said receiving being repeated a multitude of times,receiving a first Evolved Universal Terrestrial Radio Access Network (E-UTRAN), radio fingerprint, based on a first signal propagation time measurement value measured with respect to the location point of the first user equipment, said receiving being repeated a multitude of times,associating the received first E-UTRAN radio fingerprint with the received geographic position data, said associating being repeated a multitude of times,clustering the received geographic position data based on similarities between the received E-UTRAN radio fingerprint, to create cluster boundaries defining 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, comprised in the wireless communication system,comparing the second E-UTRAN radio fingerprint received from the second user equipment with previously received E-UTRAN radio fingerprints being associated with geographic region data, andif the second E-UTRAN radio fingerprint corresponds to a previously received E-UTRAN radio fingerprint, associating the geographic region data of the previously received E-UTRAN radio fingerprint with the location point of the second user equipment, andproviding the geographic region data, associated with the location point of the second user equipment.

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