Method and apparatus for peer-assisted localization
First Claim
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1. A method, comprising:
- receiving, by a first mobile station, a signal transmitted from a second mobile station and addressed to a communication device to request the communication device to send an acknowledgement signal to the second mobile station to estimate a range from the communication device to the second mobile station so as to enable determining a current location of the second mobile station, wherein the signal includes a previous location estimate for the second mobile station; and
determining an estimated location of the first mobile station based at least in part on a measured signal strength of the signal and on the previous location included in the signal.
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Abstract
The subject matter disclosed herein relates to a system and method for receiving, by a first mobile station, a signal transmitted from a second mobile station and addressed to a communication device (e.g., a communication device having a known location). The signal comprises a location estimate for the second mobile station. A range from the first mobile station to the second mobile station is estimated based at least in part on a measured signal strength of the received signal.
53 Citations
55 Claims
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1. A method, comprising:
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receiving, by a first mobile station, a signal transmitted from a second mobile station and addressed to a communication device to request the communication device to send an acknowledgement signal to the second mobile station to estimate a range from the communication device to the second mobile station so as to enable determining a current location of the second mobile station, wherein the signal includes a previous location estimate for the second mobile station; and determining an estimated location of the first mobile station based at least in part on a measured signal strength of the signal and on the previous location included in the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus, comprising:
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a receiver to receive wireless signals; and one or more processing units programmed with instructions to; determine an estimated location of the apparatus based at least in part on a measured signal strength of a signal received at the receiver from a mobile station and addressed to a communication device, and further based on a previous location estimate for the mobile station included in the signal, the signal addressed to the communication device used to request the communication device to send an acknowledgement signal to the mobile station to estimate a range from the communication device to the mobile station so as to enable determining a current location of the mobile station. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus, comprising:
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means for processing a signal received by a first mobile station and transmitted from a second mobile station and addressed to a communication device to request the communication device to send an acknowledgement signal to the second mobile station to estimate a range from the communication device to the second mobile station so as to enable determining a current location of the second mobile station, wherein the signal includes a previous location estimate for the second mobile station; and means for determining an estimated location of the first mobile station based at least in part on a measured signal strength of the signal and on the previous location included in the signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. An article comprising:
- a non-transitory storage medium comprising machine-readable instructions stored thereon which, in response to being executed by a special purpose apparatus, direct the special purpose apparatus to;
process a signal received by a first mobile station and transmitted from a second mobile station and addressed to a communication device to request the communication device to send an acknowledgement signal to the second mobile station to estimate a range from the communication device to the second mobile station so as to enable determining a current location of the second mobile station, wherein the signal includes a previous location estimate for the second mobile station; and determine an estimated location of the first mobile station based at least in part on a measured signal strength of the signal and on the previous location included in the signal. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
- a non-transitory storage medium comprising machine-readable instructions stored thereon which, in response to being executed by a special purpose apparatus, direct the special purpose apparatus to;
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39. A method, comprising:
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receiving, by a first mobile station, a signal transmitted from a second mobile station and addressed to a communication device, wherein the signal comprises a location estimate for the second mobile station; initiating transmission of a probe request, from the first mobile station, to the second mobile station; and estimating a range from the first mobile station to the second mobile station based at least in part on a measured round trip time delay between transmission of the probe request and receipt of a probe request acknowledgement signal at the first mobile station. - View Dependent Claims (40, 41, 42, 43, 44)
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45. An apparatus, comprising:
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a receiver to receive wireless signals; and one or more processing units programmed with instructions to; process a signal transmitted from a mobile station and addressed to a communication device, wherein the signal comprises a location estimate for the mobile station; transmit a probe request to the mobile station; receive a probe request acknowledgement transmitted from the mobile station; and estimate a range to the mobile station based at least in part on a measured round trip time delay between transmitting the probe request and receiving the probe request acknowledgement. - View Dependent Claims (46, 47, 48)
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49. An apparatus, comprising:
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means for processing a signal received by a first mobile station and transmitted from a second mobile station and addressed to a communication device, wherein the signal comprises a location estimate for the second mobile station; means for initiating transmission of a probe request, from the first mobile station to the second mobile station; and means for estimating a range from the first mobile station to the second mobile station based at least in part on a measured round trip time delay between transmission of the probe request and receipt of a probe request acknowledgement at the first mobile station. - View Dependent Claims (50, 51, 52)
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53. An article comprising:
- a non-transitory storage medium comprising machine-readable instructions stored thereon which, in response to being executed by a special purpose computing device, direct the special purpose computing device to;
process a signal received from a mobile station and transmitted and addressed to a communication device, wherein the signal comprises a location estimate for the mobile station; initiating transmission of a probe request to the mobile station; and estimating a range to the mobile station based at least in part on a measured round trip time delay between transmission of the probe request and receipt of a probe request acknowledgement from the mobile station. - View Dependent Claims (54, 55)
- a non-transitory storage medium comprising machine-readable instructions stored thereon which, in response to being executed by a special purpose computing device, direct the special purpose computing device to;
Specification