Utilizing a pressure profile to determine a location context identifier
First Claim
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1. A method comprising:
- obtaining, at a mobile device, positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected altitude values for at least some of said predetermined locations relative to a reference altitude value within said area;
measuring an altitude of said mobile device relative to said reference altitude value based, at least in part, on one or more barometric pressure measurements obtained via a barometric pressure sensor of said mobile device; and
estimating a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected altitude values and said altitude measured via said one or more barometric pressure measurements.
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Abstract
Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for utilizing a pressure profile to determine a location context identifier (LCI) for use in or with a mobile communication device.
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Citations
38 Claims
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1. A method comprising:
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obtaining, at a mobile device, positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected altitude values for at least some of said predetermined locations relative to a reference altitude value within said area; measuring an altitude of said mobile device relative to said reference altitude value based, at least in part, on one or more barometric pressure measurements obtained via a barometric pressure sensor of said mobile device; and estimating a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected altitude values and said altitude measured via said one or more barometric pressure measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
a mobile device comprising; a wireless transceiver to communicate with a wireless network to obtain positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected altitude values for at least some of said predetermined locations relative to a reference altitude value within said area; a barometric pressure sensor to measure an altitude of said mobile device relative to said reference altitude value based, at least in part, on one or more barometric pressure measurements obtained via said barometric pressure sensor of said mobile device; and one or more processors programmed with instructions to estimate a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected altitude values and said altitude measured via said one or more barometric pressure measurements. - View Dependent Claims (13, 14, 15, 16)
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17. An apparatus comprising:
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means for obtaining, at a mobile device, positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected altitude values for at least some of said predetermined locations relative to a reference altitude value within said area; means for measuring an altitude of said mobile device relative to said reference altitude value based, at least in part, on one or more barometric pressure measurements obtained via a barometric pressure sensor of said mobile device; and means for estimating a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected altitude values and said altitude measured via said one or more barometric pressure measurements. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An article comprising:
a non-transitory storage medium having instructions stored thereon executable by a special purpose computing platform to; obtain, at a mobile device, positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected altitude values for at least some of said predetermined locations relative to a reference altitude value within said area; measure an altitude of said mobile device relative to said reference altitude value based, at least in part, on one or more barometric pressure measurements obtained via a barometric pressure sensor of said mobile device; and estimate a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected altitude values and said altitude measured via said one or more barometric pressure measurements. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A method comprising:
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obtaining, at a mobile device, positioning assistance data comprising a radio heat map defining a plurality of predetermined locations in an area identified via a location context identifier (LCI), said radio heat map comprising one or more expected barometric pressure values for at least some of said predetermined locations relative to a reference barometric pressure value within said area; measuring, via a barometric pressure sensor of said mobile device, a barometric pressure of said mobile device relative to said reference barometric pressure value; and estimating a location of said mobile device based, at least in part, on at least one signal pattern matching operation with respect to said one or more expected barometric pressure values and said barometric pressure of said mobile device measured via said barometric pressure sensor. - View Dependent Claims (35, 36, 37, 38)
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Specification