Adaptive enhanced cell identity positioning
First Claim
1. A method for providing position determination assisting data in a cellular communications network, comprising the steps of:
- receiving from each of multiple user equipments (UEs) having a global positioning system (GPS) receiver repeated determinations of a cell relation configuration and a measured high precision, GPS position of the UE, wherein the GPS position of the UE is determined using the UE'"'"'s GPS receiver,wherein the cell relation configuration for each UE includes at least cell identity information of cells in which radio signals to or from the UE fulfill at least a specific radio condition criterion,forming, in a network node, for one or more of the cell relation configurations a cluster listing multiple ones of the measured high-precision, GPS positions having that cell relation configuration,wherein each cluster listing of measured high-precision, GPS positions identifies a specific geographic area;
deterministically associating, in a network node, an area definition that defines a geographic location area polygon in the cellular communications network for multiple ones of the cluster listings, wherein the area definition is associated with a confidence value; and
creating a database of position determination assisting data that specifies a relation between each of the multiple ones of the cell relation configurations and its deterministically associated area definition.
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Accused Products
Abstract
Position determination assisting data is provided for performing position determinations based on this assisting data. The position determination assisting data comprises area definitions, each of which being related at least to a respective cell relation configuration. The cell relation configuration is determined at least by cell-IDs of cells fulfilling a specific radio condition criterion when received. Preferably, the cell relation configuration is also dependent on relative radio conditions between different cells and/or transmission mode. The area definitions are in particular example embodiments polygons, which preferably are re-calculated successively, automatically and on-line. The recalculations are based on high-precision position measurements of opportunity, clustered at least with respect to prevailing cell relation configuration for that user equipment performing the high-precision position measurements. Preferably, the area definitions are calculated with a predefined confidence level.
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Citations
48 Claims
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1. A method for providing position determination assisting data in a cellular communications network, comprising the steps of:
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receiving from each of multiple user equipments (UEs) having a global positioning system (GPS) receiver repeated determinations of a cell relation configuration and a measured high precision, GPS position of the UE, wherein the GPS position of the UE is determined using the UE'"'"'s GPS receiver, wherein the cell relation configuration for each UE includes at least cell identity information of cells in which radio signals to or from the UE fulfill at least a specific radio condition criterion, forming, in a network node, for one or more of the cell relation configurations a cluster listing multiple ones of the measured high-precision, GPS positions having that cell relation configuration, wherein each cluster listing of measured high-precision, GPS positions identifies a specific geographic area; deterministically associating, in a network node, an area definition that defines a geographic location area polygon in the cellular communications network for multiple ones of the cluster listings, wherein the area definition is associated with a confidence value; and creating a database of position determination assisting data that specifies a relation between each of the multiple ones of the cell relation configurations and its deterministically associated area definition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An arrangement for providing position determination assisting data in a cellular communications network, comprising:
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a receiver configured to receive from each of multiple user equipments (UEs) having a global positioning system (GPS) receiver repeated determinations of a cell relation configuration and a measured high precision, global positioning system (GPS) position of the UE, wherein the cell relation configuration for each UE includes at least cell identity information of cells in which radio signals to or from the UE fulfill at least a specific radio condition criterion, and computer apparatus configured to; form for one or more cell relation configurations a cluster listing multiple ones of the measured high-precision, GPS positions having that cell relation configuration, wherein each cluster listing of measured high-precision, GPS positions identifies a specific geographic area; deterministically associate an area definition that defines a geographic location area polygon in the cellular communications network for multiple ones of the cluster listings, wherein the area definition is associated with a confidence value; and create a database of position determination assisting data that specifies a relation between each of the multiple ones of the cell relation configurations and its deterministically associated area definition. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification