US6288675B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single station communications localization system
Assignee: Qualcomm Inc
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Filing: 2000-02-18
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Granted: 2001-09-11
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Expires: 2020-02-18
Abstract
Abstract The present invention combines the measured characteristics of a radio signal in a communications environment with collateral information to produce an accurate and economical way to locate a mobile transmitter station, such as a mobile telephone, in a cellular telephone network.
Inventors
- 👤 John E. Maloney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:04
CPC Classifications
H; H04; H04W; H04W64/00; G; G01; G01S; G01S2205/00; G01S2205/01; G01S2205/06; G01S5/00; G01S5/02; G01S5/04; G01S5/12
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
137 words
An apparatus for locating a mobile radio communications transceiver in an operating environment served by a wireless communications system, comprising: at least a single sensor station having a directionally sensitive antenna and signal receiver to receive radio signals from the mobile transceiver; a signal characterization processing unit for measuring at least one signal characteristic based on the signal representations received from the mobile radio transceiver by said signal sensor station; a source of collateral information including a database of position-dependent, propagation-affected, signal characteristics measured from the operating environment of the mobile transceiver; a multidimensional parametric correlation processing unit for determining a probable position of the mobile transceiver directly from the correlation of the measured signal-characteristic information from said single sensor station and the collateral information; and an output indicative of the probable position of the mobile transceiver.
Claim 2
Independent Claim
137 words
An apparatus for locating a mobile radio communications transceiver in an operating environment served by a wireless communications system, comprising: at least a single sensor station having a directionally sensitive antenna and signal receiver to receive radio signals from the mobile transceiver; a signal characterization processing unit for measuring at least one signal characteristic based on the signal representations received from the mobile radio transceiver by said signal sensor station; a source of collateral information including a database of position-dependent, propagation-affected, signal characteristics measured from the operating environment of the mobile transceiver; a multidimensional parametric correlation processing unit for determining a probable position of the mobile transceiver directly from the correlation of the measured signal-characteristic information from said single sensor station and the collateral information; and an output indicative of the probable position of the mobile transceiver.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 , wherein said signal characteristic includes directionally sensitive information.
Claim 4
Independent Claim
111 words
A method for locating a mobile radio communications transceiver operating in an environment served by a cellular communications system, comprising the steps of: (1) measuring at least one signal characteristic based on the signal representations received from the mobile radio transceiver by at least a single sensor station with a directionally sensitive antenna and signal receiver; (2) accessing collateral information including a database of position-dependent, propagation-affected, signal characteristics measured from the operating environment of the mobile transceiver; (3) correlating a probable position of the mobile transceiver directly from the measured signal-characteristic information from said single sensor station and said collateral information; and (4) indicating a probable position of the mobile transceiver.
Claim 5
Independent Claim
111 words
A method for locating a mobile radio communications transceiver operating in an environment served by a cellular communications system, comprising the steps of: (1) measuring at least one signal characteristic based on the signal representations received from the mobile radio transceiver by at least a single sensor station with a directionally sensitive antenna and signal receiver; (2) accessing collateral information including a database of position-dependent, propagation-affected, signal characteristics measured from the operating environment of the mobile transceiver; (3) correlating a probable position of the mobile transceiver directly from the measured signal-characteristic information from said single sensor station and said collateral information; and (4) indicating a probable position of the mobile transceiver.
Claim 6
Dependent Claim
14 words
The method of claim 3 , wherein said signal characteristic includes directionally sensitive information.
Claim 7
Independent Claim
137 words
An apparatus for locating a mobile radio communications transceiver in an operating environment served by a wireless communications system, comprising: at least a single sensor station having a directionally sensitive antenna and signal receiver to receive radio signals from the mobile transceiver; a signal characterization processing unit for measuring at least one positionally sensitive signal characteristic based on the signal representations received from the mobile radio transceiver by said single sensor station; a source of collateral information which comprises data sensitive to the position of the mobile transceiver within its operating environment; a multidimensional parametric correlation processing unit for determining a probable position of the mobile transceiver directly from the correlation of the measured signal-characteristic information from said single sensor station and the collateral information; and an output indicative of the probable position of the mobile transceiver.
Claim 8
Independent Claim
137 words
An apparatus for locating a mobile radio communications transceiver in an operating environment served by a wireless communications system, comprising: at least a single sensor station having a directionally sensitive antenna and signal receiver to receive radio signals from the mobile transceiver; a signal characterization processing unit for measuring at least one positionally sensitive signal characteristic based on the signal representations received from the mobile radio transceiver by said single sensor station; a source of collateral information which comprises data sensitive to the position of the mobile transceiver within its operating environment; a multidimensional parametric correlation processing unit for determining a probable position of the mobile transceiver directly from the correlation of the measured signal-characteristic information from said single sensor station and the collateral information; and an output indicative of the probable position of the mobile transceiver.
Claim 9
Dependent Claim
14 words
The apparatus of claim 5 , wherein said signal characteristic comprises range-related, travel-time information.
Claim 10
Dependent Claim
14 words
The apparatus of claim 5 , wherein said signal characteristic comprises directionally sensitive information.
Claim 11
Dependent Claim
13 words
The apparatus of claim 5 , wherein the collateral information comprises GPS-based information.
Claim 12
Dependent Claim
13 words
The apparatus of claim 5 , wherein the collateral information comprises communicated information.
Claim 13
Dependent Claim
13 words
The apparatus of claim 9 , wherein the communicated information comprises GPS-based information.
Claim 14
Independent Claim
111 words
A method for locating a mobile radio communications transceiver operating in an environment served by a cellular communications system, comprising the steps of: (1) measuring at least one positionally sensitive signal characteristic based on the signal representations received from the mobile radio transceiver by at least a single sensor station with a directionally sensitive antenna and signal receiver; (2) accessing collateral information which comprises data sensitive to the position of the mobile transceiver within its operating environment; (3) correlating a probable position of the mobile transceiver directly from the measured signal-characteristic information from said single sensor station and said collateral information; and (4) indicating a probable position of the mobile transceiver.
Claim 15
Independent Claim
111 words
A method for locating a mobile radio communications transceiver operating in an environment served by a cellular communications system, comprising the steps of: (1) measuring at least one positionally sensitive signal characteristic based on the signal representations received from the mobile radio transceiver by at least a single sensor station with a directionally sensitive antenna and signal receiver; (2) accessing collateral information which comprises data sensitive to the position of the mobile transceiver within its operating environment; (3) correlating a probable position of the mobile transceiver directly from the measured signal-characteristic information from said single sensor station and said collateral information; and (4) indicating a probable position of the mobile transceiver.
Claim 16
Dependent Claim
14 words
The method of claim 11 , wherein said signal characteristic comprises directionally sensitive information.
Claim 17
Dependent Claim
14 words
The method of claim 11 , wherein said signal characteristic comprises range-related, travel-time information.
Claim 18
Dependent Claim
13 words
The method of claim 11 , wherein the collateral information comprises GPS-based information.
Claim 19
Dependent Claim
13 words
The method of claim 11 , wherein the collateral information comprises communicated information.
Claim 20
Dependent Claim
13 words
The method of claim 15 , wherein the communicated information comprises GPS-based information.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-10 | 2005-03-12 | 2005-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-10 | 2009-03-12 | 2009-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-10 | 2013-03-12 | 2013-09-11 | $7700.00 | Window Closed / Lapsed |