System and method for generic application of location determination for network attached devices
First Claim
1. A method for determining the location of a target device, comprising the steps of:
- (a) receiving a location request for a target device;
(b) determining a plurality of parameters that identify the target device;
(c) selecting a most likely path from a plurality of paths using circuitry in a Location Information Server (LIS) to produce a location of the target device, each path defined by a plurality of location measurements, at least one of the plural location measurements having one or more of the plural determined parameters as an input and one or more measurement results as an output and a second of the plural location measurements having the one or more measurement results as an input and additional measurement results as an output;
(d) collecting measurement information on the most likely path as a function of one or more of the determined parameters to provide the one or more measurement results;
(e) deriving location information for the target device as a function of the one or more measurement results and the additional measurement results, the derivation utilizing a location determination function that evaluates ones of the plural paths;
(f) iteratively repeating steps (c) through (e) to collect a predetermined amount of measurement information; and
(g) determining an estimated location of the target device as a function of the respective location information for the selected path,wherein the step of selecting a most likely path further comprises selecting a most likely path having the fewest number of measurement results.
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Accused Products
Abstract
A system and method for determining the location of a target device. A location request may be received for a target device, and a plurality of parameters determined that identify the target device. A most likely path may be selected from a plurality of paths to produce a location of the target device, each path having one or more of the plural determined parameters as an input and one or more measurement results as an output. Measurement information may be collected on the most likely path as a function of one or more of the determined parameters to provide the one or more measurement results. Location information may then be derived for the target device as a function of the one or more measurement results, the derivation utilizing a location determination function that evaluates ones of the plural paths. An estimated location of the target device may then be determined as a function of the respective location information for the selected path.
94 Citations
22 Claims
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1. A method for determining the location of a target device, comprising the steps of:
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(a) receiving a location request for a target device; (b) determining a plurality of parameters that identify the target device; (c) selecting a most likely path from a plurality of paths using circuitry in a Location Information Server (LIS) to produce a location of the target device, each path defined by a plurality of location measurements, at least one of the plural location measurements having one or more of the plural determined parameters as an input and one or more measurement results as an output and a second of the plural location measurements having the one or more measurement results as an input and additional measurement results as an output; (d) collecting measurement information on the most likely path as a function of one or more of the determined parameters to provide the one or more measurement results; (e) deriving location information for the target device as a function of the one or more measurement results and the additional measurement results, the derivation utilizing a location determination function that evaluates ones of the plural paths; (f) iteratively repeating steps (c) through (e) to collect a predetermined amount of measurement information; and (g) determining an estimated location of the target device as a function of the respective location information for the selected path, wherein the step of selecting a most likely path further comprises selecting a most likely path having the fewest number of measurement results. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining the location of a target device, comprising the steps of:
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(a) receiving a location request for a target device; (b) determining a plurality of parameters that identify the target device; (c) collecting measurement information as a function of one or more of the plural determined parameters to provide a plurality of measurement results; (d) deriving location information for the target device as a function of one or more of the plural measurement results using circuitry in a Location Information Server (LIS), the derivation utilizing a location determination function that evaluates one or more paths, each path defined by a plurality of location measurements, at least one of the plural location measurements having one or more of the plural determined parameters as an input and one or more of the plural measurement results as an output and a second of the plural location measurements having the one or more measurement results as an input and additional measurement results as an output; (e) identifying a path from the one or more evaluated paths as failed if location information could not be derived from the identified path; (f) iteratively repeating steps (c) through (e) until a most likely path is determined; and (g) determining an estimated location of the target device as a function of the respective location information for the determined path, wherein the step of identifying a path further comprises selecting a most likely path having the fewest number of measurement results. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A location information server (“
- LIS”
) comprising;(a) circuitry for receiving a location request for a target device; (b) circuitry for determining a plurality of parameters that identify the target device; (c) circuitry for selecting a most likely path from a plurality of paths, each path defined by a plurality of location measurements, at least one of the plural location measurements having one or more of the plural determined parameters as an input and one or more measurement results as an output and a second of the plural location measurements having the one or more measurement results as an input and additional measurement results as an output, wherein the selected path has the fewest number of measurement results; (d) circuitry for deriving location information for the target device as a function of one or more measurement results and the additional measurement results, the derivation utilizing a location determination function that evaluates ones of the plural paths; (e) circuitry for iteratively collecting a predetermined amount of measurement information as a function of one or more of the plural determined parameters to provide the one or more measurement results; and (f) circuitry for determining an estimated location of the target device as a function of the respective location information for the selected path. - View Dependent Claims (19, 20, 21, 22)
- LIS”
Specification