LOCATION MEASUREMENT ACQUISITION ADAPTIVE OPTIMIZATION
First Claim
1. A method of adaptively optimizing the amount of measurements of a property required to achieve a desired level of uncertainty in a service area, the method comprising:
- establishing an initial amount (n) of measurements required of a property;
receiving a location request;
obtaining n measurements of the property;
estimating a location associated with the location request based on at least the n measurements of the property;
determining the level of uncertainty associated with the estimated location;
comparing the determined level of uncertainty with at least one threshold, wherein the threshold is based on the desired level of uncertainty; and
tuning the amount of measurements n required of the property based upon the comparison.
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Accused Products
Abstract
A disclosed method uses the results of location queries to tune the value of measurements of a property to obtain a statistically representative measurement for geo location. As location requests arrive, a current measurement value associated with the serving area or location is used to determine the number of measurements to obtained; the resulting uncertainty is mapped against the number of measurements required to determine that value. If additional measurements are required to achieve the target uncertainty in the result, this is recorded. The process relies on empirical observations and has the additional advantage of being blind to the actual network topology. This approach by its own nature automatically takes into account network changes whether known or unknown.
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Citations
23 Claims
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1. A method of adaptively optimizing the amount of measurements of a property required to achieve a desired level of uncertainty in a service area, the method comprising:
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establishing an initial amount (n) of measurements required of a property; receiving a location request; obtaining n measurements of the property; estimating a location associated with the location request based on at least the n measurements of the property; determining the level of uncertainty associated with the estimated location; comparing the determined level of uncertainty with at least one threshold, wherein the threshold is based on the desired level of uncertainty; and tuning the amount of measurements n required of the property based upon the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method to locate a mobile device within a predetermined level of uncertainty, comprising:
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compiling data associated with location requests and the location estimates within a service area in a database; associating in the database the amount of plural measurements of a property with the level of uncertainty of a location estimated using the plural measurements; receiving a location request; determining the level of uncertainty required for the location request; selecting the amount of plural measurements associated with the level of uncertainty required based on the associations in the database; obtaining plural measurements of a property in the amount selected; obtaining a location estimate; determining the level of uncertainty in the location estimate; associating the number of plural measurements obtained and the determined level of uncertainty in the location estimate and compiling the association in the database; and
,determining a new amount of measurements required for a desired level of uncertainty. - View Dependent Claims (16, 17)
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18. In a service area subject to property fluctuations, a method of determining a nominal amount of plural measurements of a property required to obtain a predetermined level of uncertainty using actual location requests, the method comprising:
- receiving a location request, estimating a location based on an predetermined level of uncertainty and an amount of property measurements used;
associating the amount of measurement samples of a property taken, the estimated location and the resulting level of uncertainty calculated from the estimated location using the measurement samples; and
adaptively tuning the associated nominal amount of property measurements based on the estimated location and its level of uncertainty. - View Dependent Claims (19)
- receiving a location request, estimating a location based on an predetermined level of uncertainty and an amount of property measurements used;
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20. A method of optimizing the nominal requirements associated with a wireless communications property comprising:
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associating location estimates, number of property samples used in the location estimates and level of uncertainties of the location estimates in a historical database; establishing nominal requirements based on the location database; receiving a location request; generating a location estimate according to the nominal requirements; and
,adaptively updating the nominal requirements based on the location estimate. - View Dependent Claims (21, 22, 23)
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Specification