Transformation of positioning reporting formats
First Claim
1. A method carried out by a unit integrated in or attached to a positioning node of a wireless communication system, the method comprising the steps ofreceiving from said positioning node positioning information data of a user equipment according to a first reporting format including at least an area shape information and a first confidence value;
- transforming said positioning information data of said user equipment to a second reporting format with different area shape and a second, predefined, target confidence value;
sending said positioning information data according to the second reporting format to a requesting unit, andtransforming said positioning information data includingderiving an approximation of the shape-defining parameters for the second reporting format to minimize a criterion function including the predefined target confidence value, anddetermining the deviation of the confidence value for the approximated shape from the target confidence value.
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Abstract
The present invention relates to a method and arrangement for achieving transformations of received positioning information according to a first reporting format to positioning information according to a second format such as to allow a seamless transformation and handling of the positioning confidence values, i.e. the probability that the terminal is actually located in the region determined by the applied positioning method. The method derives an approximation of the shape-defining parameters for the second reporting format such as to minimize a criterion function including the predefined target confidence value and determining the deviation of the confidence value for the approximated shape from the target confidence value.
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Citations
20 Claims
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1. A method carried out by a unit integrated in or attached to a positioning node of a wireless communication system, the method comprising the steps of
receiving from said positioning node positioning information data of a user equipment according to a first reporting format including at least an area shape information and a first confidence value; -
transforming said positioning information data of said user equipment to a second reporting format with different area shape and a second, predefined, target confidence value; sending said positioning information data according to the second reporting format to a requesting unit, and transforming said positioning information data including deriving an approximation of the shape-defining parameters for the second reporting format to minimize a criterion function including the predefined target confidence value, and determining the deviation of the confidence value for the approximated shape from the target confidence value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. (canceled)
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15. An apparatus included in a wireless communication system the apparatus comprising:
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a receiver for receiving from a positioning node positioning information data of a user equipment according to a first reporting format including at least an area shape information and a first confidence value; a transmitter for providing to a requesting unit positioning information data of said user equipment according to a second reporting format with different area shape and a second, predefined, target confidence value, and comprising a calculating unit adapted to derive an approximation of the shape-defining parameters for the second reporting format such as to minimize a criterion function including the predefined target confidence value and determining the deviation of the confidence value for the approximated shape from the target confidence value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification