SYSTEM AND METHOD FOR EVALUATING ACCURACY OF AN AUTOMATIC LOCATION IDENTIFICATION SYSTEM
6 Assignments
0 Petitions
Accused Products
Abstract
A method (38) and system (56) evaluate the accuracy of an Automatic Location Identification (ALI) system (36) deployed within an environment (20) and configured to location a wireless communication device (24) originating an emergency call (22) through a wireless communication network (26). The method (38) includes a subprocesses that identify a validation region (144) in which a service area (106) of a public service answering point (PSAP) (32) and an RF coverage area (129) overlap, classify sub-regions within the validation region (144) according to a predetermined set of test scenarios (148) representing unique calling environments, and select test points (200) within the validation region (144) from which test calls, that simulate emergency calls, will be performed. The method (38) further includes an empirical test call execution subprocess (50) for performing test calls within the validation region (144) and a predictive test call execution subprocess (52) for simulating test calls within a simulated environment (260).
47 Citations
21 Claims
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1. (canceled)
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2. A method comprising:
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determining a validation region associated with a public assistance service area that is within a coverage area of a wireless communication network; selecting a test point within the validation region according to a testing scenario, wherein a test call is placed from the test point to obtain position information; and comparing the position information with location information output from a location identification system to determine accuracy of the location identification system for locating a wireless device within the validation region. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
a processor configured to determine a validation region associated with a public assistance service area that is within a coverage area of a wireless communication network, and to select a test point within the validation region according to a testing scenario, wherein a test call is placed from the test point to obtain position information, the processor being further configured to compare the position information with location information output from a location identification system to determine accuracy of the location identification system for locating a wireless device within the validation region. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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generating a validation region map representing an overlap of a service area of a public safety answering point (PSAP) and a coverage area of a wireless communication network; partitioning the validation region map into a plurality of sub-regions; selecting one of a plurality of test scenarios, each of the test scenarios representing a unique calling environment in which an emergency call may occur; correlating each of the sub-regions with the one test scenario; determining test points in response to the one test scenario, wherein the test points exhibit the unique calling environment represented by the selected test scenario; and calculating location error by determining differences between reported location by an automatic location identification (ALI) system and corresponding ground truth associated with test calls made from the test points. - View Dependent Claims (21)
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Specification