Aggregating location accuracy data to estimate accuracy of a wireless locating system
First Claim
1. A method for ascertaining location determination accuracy in a mobile telecommunications environment, the method comprising:
- obtaining location determination accuracy data for a plurality of empirical test calls in a geographic region, a location of a wireless station for each test call determined using at least one of a plurality of wireless locating techniques;
identifying at least an approximate ratio of wireless locating techniques for the empirical test calls;
receiving data relating to subscriber calls in the geographic region, the data including information relating to location estimates determined using at least one of the wireless locating techniques; and
estimating location determination accuracy in the geographic region by combining at least portions of the data relating to subscriber calls according to the identified ratio.
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Accused Products
Abstract
Location determination accuracy in a mobile telecommunications environment can be estimated based on location determination accuracy data for multiple empirical test calls in a geographic region. A location of a wireless station for each test call is determined using one of multiple wireless locating techniques, and an approximate ratio of wireless locating techniques for the empirical test calls is identified. Subscriber call data relating to location estimates determined using one of the wireless locating techniques is received. Location determination accuracy in the geographic region is estimated by combining the subscriber call data according to the identified ratio. To facilitate determinations of locating accuracy, the geographic region is logically segmented into multiple areas. Each area is associated with a performance profile that relates to a locating accuracy performance. Location determination accuracy is estimated based on one or more areas associated with each wireless call in the geographic region.
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Citations
25 Claims
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1. A method for ascertaining location determination accuracy in a mobile telecommunications environment, the method comprising:
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obtaining location determination accuracy data for a plurality of empirical test calls in a geographic region, a location of a wireless station for each test call determined using at least one of a plurality of wireless locating techniques;
identifying at least an approximate ratio of wireless locating techniques for the empirical test calls;
receiving data relating to subscriber calls in the geographic region, the data including information relating to location estimates determined using at least one of the wireless locating techniques; and
estimating location determination accuracy in the geographic region by combining at least portions of the data relating to subscriber calls according to the identified ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An article comprising a machine-readable medium storing instructions for causing data processing apparatus to:
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receive empirical location determination accuracy data for a wireless telecommunication network, the empirical location determination accuracy data determined based on test calls involving wireless stations at known locations;
receive estimated position error data for subscriber calls in the wireless telecommunication network; and
normalize the estimated position error data for the subscriber calls according to characteristics of the test calls to determine estimated location determination accuracy data. - View Dependent Claims (9, 10, 11, 12)
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13. A method for facilitating determinations of locating accuracy in a mobile telecommunications environment, the method comprising:
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identifying a geographic region;
logically segmenting the geographic region into a plurality of areas, each area associated with one of a plurality of performance profiles relating to a locating accuracy performance; and
estimating location determination accuracy based on at least one area associated with each of a plurality of wireless calls in the geographic region. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An article comprising a machine-readable medium storing instructions for causing data processing apparatus to:
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receive wireless station location data for calls in a telecommunication network;
determine an area including a location identified by the location data for each call, the area having an associated location-estimating performance type and the area comprising one of a plurality of areas in a geographic region;
associate each call with the location-estimating performance type for the corresponding area; and
normalize data for calls associated with each location-estimating performance type according to at least an approximate percentage of the geographic region associated with each location-estimating performance type to estimate a location determination accuracy. - View Dependent Claims (23, 24, 25)
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Specification