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Method and arrangement for improved positioning

  • US 8,385,948 B2
  • Filed: 12/18/2008
  • Issued: 02/26/2013
  • Est. Priority Date: 12/18/2008
  • Status: Active Grant
First Claim
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1. A method in a core network node of improved positioning of a user equipment in a telecommunication system, said telecommunication system comprising the user equipment in communication with the core network node via a radio access network node, the method comprising, in response to a user equipment positioning event for said user equipment:

  • providing user equipment identification data for said user equipment, said user equipment identification data comprising;

    at least a parameter indicative of a type for said user equipment;

    a confidence reporting principle;

    a geographical reporting format comprising a geometrical shape with a size indicative of an uncertainty of a geographical position of said user equipment and a confidence value indicative of a probability that said user equipment is located within said geometrical shape, and wherein at least one parameter is indicative of whether a two dimensional or three dimensional confidence value is provided for said geographical reporting format; and

    a positioning method associated with said geographical reporting format;

    receiving user equipment positioning information from said radio access network node based on said user equipment positioning event, said user equipment positioning information comprising the geographical reporting format representative of the geographical position of said user equipment, and the positioning method applied;

    determining a type of the user equipment based on a received signal including information concerning the type of the user equipment; and

    correcting said received user equipment positioning information based on said provided user equipment identification data, a predetermined desired output geographical reporting format, said determined type of user equipment, and said positioning method applied.

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