Method and radio signature position determining entity (RS-PDE) for maintaining location database reliability
First Claim
1. A method for updating a location database of a Radio Signature Positioning Determining Entity (RS-PDE), the method comprising the steps of:
- a) transferring new location data to the RS-PDE;
b) correlating the new location data with existing location data of the location database and creating correlated location data;
c) uploading the correlated location data into the location database;
d) determining a Figure of Merit (FoM) for a cell associated with at least a portion of the new location data, the FoM relating to an exactitude of a positioning provided by the RS-PDE for positioning requests within the cell; and
e) if the FoM for the cell is below a pre-defined threshold, tagging the cell for a location data automatic update; and
wherein steps b) comprises correlating new location data associated to the cell with existing location data associated to the cell.
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Accused Products
Abstract
A method and a Radio Signature Positioning Determining Entity (RS-PDE) are provided for maintaining the reliability of a location database of the RS-PDE. A Data Transfer Scheduler (DTS) of the RS-PDE receives new location data comprising signal strength measurements records, and the new location data is correlated by a Data Correlation Device (DCD) with existing location data of the location database. The correlated location data is uploaded by a Data Uploader (DU) into the location database. A Data Performance Monitor (DPM) detects if the RS-PDE provides better positioning results using that correlated data, and if so, the RS-PDE then uses the correlated data for mobile station positioning. The location data update cycle may be triggered by a configurable timer defining an update periodicity, or by a detection of insufficient positioning accuracy of the RS-PDE using the existing location data.
68 Citations
13 Claims
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1. A method for updating a location database of a Radio Signature Positioning Determining Entity (RS-PDE), the method comprising the steps of:
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a) transferring new location data to the RS-PDE; b) correlating the new location data with existing location data of the location database and creating correlated location data; c) uploading the correlated location data into the location database; d) determining a Figure of Merit (FoM) for a cell associated with at least a portion of the new location data, the FoM relating to an exactitude of a positioning provided by the RS-PDE for positioning requests within the cell; and e) if the FoM for the cell is below a pre-defined threshold, tagging the cell for a location data automatic update; and wherein steps b) comprises correlating new location data associated to the cell with existing location data associated to the cell. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A Radio Signature Positioning Determining Entity (RS-PDE) comprising:
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a location database comprising existing location data used for mobile station positioning; a Data Transfer Scheduler (DTS) receiving new location data; a Data Correlation Device (DCD) correlating the new location data with the existing location data of the location database and creating correlated location data; a Data Uploader (DU) uploading the correlated data into the location database; and
a Data Performance Monitor (DPM) that determines a Figure of Merit (FoM) for a cell associated with at least a portion of the new location data, the FoM being illustrative of an exactitude of a positioning provided by the RS-PDE for positioning requests within said cell, wherein the DPM tags said cell for a location data automatic update if the FoM is below a pre-defined threshold; andwherein the DCD correlates new location data associated to the cell with existing location data associated to the cell. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification