Method and apparatus for maintaining a fingerprint for a wireless network
First Claim
1. A wireless communications device comprising:
- a memory configured to store a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; and
a processor configured to determine a second fingerprint, when the wireless communications device is within the location, based on a current measurement by the wireless communication device of the one or more reference signals, and modify the first fingerprint based on the second fingerprint.
1 Assignment
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Accused Products
Abstract
The disclosure is directed to a mobile communication device that measures characteristics or attributes of a first communications network that vary according to physical location within that first communications network to create a fingerprint, or signature, of a location within the first communications network. When the fingerprint of the current location of the mobile device is created it can be compared to a known fingerprint associated with a second communication network to determine the mobile device'"'"'s proximity to the second communications network. Furthermore, the second and subsequent fingerprint that are generated for a particular communications network can be used to modify the stored fingerprint so as to refine it to improve detecting the proximity to the communications network.
44 Citations
32 Claims
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1. A wireless communications device comprising:
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a memory configured to store a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; and a processor configured to determine a second fingerprint, when the wireless communications device is within the location, based on a current measurement by the wireless communication device of the one or more reference signals, and modify the first fingerprint based on the second fingerprint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 19, 20, 21, 22, 27, 28, 29, 30, 31, 32)
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9. A method of communications comprising:
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storing, at a wireless communications device, a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; determining a second finger print, when the wireless communications device is within the location, based on a current measurement by the wireless communication device of the one or more reference signals; and modifying the first fingerprint based on the second fingerprint. - View Dependent Claims (10, 11, 12, 13, 14, 15, 23, 24, 25, 26)
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16. At least one processor configured to communicate comprising:
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a first module for storing, at a wireless communications device, a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; a second module for determining a second finger print, when the wireless communications device is within the location, based on a current measurement by the wireless communication device of the one or more reference signals; and a third module for modifying the first fingerprint based on the second fingerprint.
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17. A computer program product, comprising:
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a computer-readable medium comprising; a first set of codes for causing a computer to store a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; a second set of codes for causing the computer to determine a second finger print, when the computer is within the location, based on a current measurement by the computer of the one or more reference signals; and a third set of codes for causing the computer to modify the first fingerprint based on the second fingerprint.
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18. An apparatus comprising:
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means for storing, at a wireless communications device, a first fingerprint identifying a location corresponding to a first communications network based on one or more reference signals from a second communications network; means for determining a second finger print, when the wireless communications device is within the location, based on a current measurement by the wireless communications device of the one or more reference signals; and means for modifying the first fingerprint based on the second fingerprint.
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Specification