Low power geographic stationarity detection
First Claim
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1. A method of identifying geographic stationarity of a mobile device, comprising:
- determining whether the mobile device is engaged in high average velocity movement based on a radio frequency (RF) environment variation estimation;
determining whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information; and
declaring a stationary state for the mobile device based on the high and low average velocity movement determinations indicating an absence of high and low average velocity movement.
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Abstract
Identifying geographic stationarity of a mobile device may be achieved by determining whether the mobile device is engaged in high average velocity movement based on radio frequency (RF) environment variation estimation, determining whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information, and declaring a stationary state for the mobile device based on an absence of high and low average velocity movement.
17 Citations
44 Claims
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1. A method of identifying geographic stationarity of a mobile device, comprising:
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determining whether the mobile device is engaged in high average velocity movement based on a radio frequency (RF) environment variation estimation; determining whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information; and declaring a stationary state for the mobile device based on the high and low average velocity movement determinations indicating an absence of high and low average velocity movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for identifying geographic stationarity of a mobile device, comprising:
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at least one processor configured to; determine whether the mobile device is engaged in high average velocity movement based on a radio frequency (RF) environment variation estimation, determine whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information, and declare a stationary state for the mobile device based on the high and low average velocity movement determinations indicating an absence of high and low average velocity movement; and memory coupled to the at least one processor and configured to store related data and instructions. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for identifying geographic stationarity of a mobile device, comprising:
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means for determining whether the mobile device is engaged in high average velocity movement based on a radio frequency (RF) environment variation estimation; means for determining whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information; and means for declaring a stationary state for the mobile device based on the high and low average velocity movement determinations indicating an absence of high and low average velocity movement. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A non-transitory computer-readable medium comprising code, which, when executed by a processor, causes the processor to perform operations for identifying geographic stationarity of a mobile device, the computer-readable medium comprising:
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code for determining whether the mobile device is engaged in high average velocity movement based on a radio frequency (RF) environment variation estimation; code for determining whether the mobile device is engaged in low average velocity movement based on pedestrial stepping information; and code for declaring a stationary state for the mobile device based on the high and low average velocity movement determinations indicating an absence of high and low average velocity movement. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification