US007525484B2
`
`(12) United States Patent
`Dupray et a].
`
`(10) Patent N0.:
`(45) Date of Patent:
`
`US 7,525,484 B2
`Apr. 28, 2009
`
`(54) GATEWAY AND HYBRID SOLUTIONS FOR
`WIRELESS LOCATION
`(75) Inventors: Dennis J. Dupray, Denver, CO (U S);
`Charles L. Karr, Tuscaloosa, AL (U S)
`(73) Assignee: TracBeam LLC, Golden, CO (US)
`( * ) Notice:
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 72 days.
`(21) App1.No.: 09/770,838
`(22) Filed:
`Jan. 26, 2001
`(65)
`Prior Publication Data
`US 2001/0022558 A1
`Sep. 20, 2001
`Related US. Application Data
`
`(63) Continuation of application No. 09/194,367, ?led as
`application No. PCT/US97/15892 on Sep. 8, 1997.
`(60) Provisional application No. 60/056,590, ?led on Aug.
`20, 1997, provisional application No. 60/044,821,
`?led on Apr. 25, 1997, provisional application No.
`60/025,855, ?led on Sep. 9, 1996.
`(51) Int. Cl.
`(2006.01)
`G01S 3/02
`(52) US. Cl. ..................................... .. 342/450; 342/457
`(58) Field of Classi?cation Search .......... .. 342/357.01,
`342/357.06, 450, 453, 4634465, 457; 455/456,
`455/457, 456.2, 456.6
`See application ?le for complete search history.
`References Cited
`
`(56)
`
`U.S. PATENT DOCUMENTS
`
`3,646,580 A
`
`2/l972 Fuller et al. ................. .. 325/53
`(Continued)
`FOREIGN PATENT DOCUMENTS
`
`EP
`
`0 177 203 A2
`9/1985
`(Continued)
`OTHER PUBLICATIONS
`
`Lepk0?<er; U.S. Appl. No. 08/246,149 Entitled Individual Location
`System; May 19, 1994.
`
`Primary ExamineriDao L Phan
`(74) Attorney, Agent, or FirmiDennis J. Dupray
`
`(57)
`
`ABSTRACT
`
`A location system is disclosed for commercial wireless tele
`communication infrastructures. The system is an end-to-end
`solution having one or more location centers for outputting
`requested locations of commercially available handsets or
`mobile stations (MS) based on, e. g., CDMA, AMPS, NAMPS
`or TDMA communication standards, for processing both
`local MS location requests and more global MS location
`requests via, e.g., Internet communication between a distrib
`uted network of location centers. The system uses a plurality
`of MS locating technologies including those based on: (1)
`two-way TOA and TDOA; (2) pattern recognition; (3) dis
`tributed antenna provisioning; and (4) supplemental informa
`tion from various types of very low cost non-infrastructure
`base stations for communicating via a typical commercial
`wireless base station infrastructure or a public telephone
`switching network. Accordingly, the traditional MS location
`di?iculties, such as multipath, poor location accuracy and
`poor coverage are alleviated via such technologies in combi
`nation with strategies for: (a) automatically adapting and
`calibrating system performance according to environmental
`and geographical changes; (b) automatically capturing loca
`tion signal data for continual enhancement of a self-maintain
`ing historical data base retaining predictive location signal
`data; (c) evaluating MS locations according to both heuristics
`and constraints related to, e.g., terrain, MS velocity and MS
`path extrapolation from tracking and (d) adjusting likely MS
`locations adaptively and statistically so that the system
`becomes progressively more comprehensive and accurate.
`Further, the system can be modularly con?gured for use in
`location signaling environments ranging from urban, dense
`urban, suburban, rural, mountain to low tra?ic or isolated
`roadways. Accordingly, the system is useful for 911 emer
`gency calls, tracking, routing, people and animal location
`including applications for con?nement to and exclusion from
`certain areas.
`
`(Continued)
`
`77 Claims, 62 Drawing Sheets
`
`
`N PROCESSI
`1A
`SUBS'YSTEM
`
`LOC ' ION
`INFORMATION
`DATA BASES
`
`CENTER m
`
`I
`p
`UBLIC TEL
`
`ORDERE ODELS m
`"" HYPOTHESIS EVALUATOR M
`H$‘IJIO5'T LIKELY" LOCATION
`POTHESIS DETERMINATION)
`
`ENVIRONMENTAL DATA PROVIDERS
`E.G., APPLICATIONS PROVIDING TRAFFIC
`FLOW, WEATHER, ETC.
`
`LOCATION APPLICATIONS @
`
`[I] PHONE
`\KANDINTERNi/
`
`swrrcume
`W 12
`
`468
`
`I
`V
`
`T-Mobile / TCS / Ericsson EXHIBIT 1002
`T-Mobile / TCS / Ericsson v. TracBeam
`Page 1
`
`

`
`US 7,525,484 B2
`Page 2
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`
`T-Mobile / TCS / Ericsson EXHIBIT 1002
`T-Mobile / TCS / Ericsson v. TracBeam
`Page 2
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`

`
`US 7,525,484 B2
`Page 3
`
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`6/1999 Wortham .................. .. 455/457
`5,914,675 A
`6/1999 Tognazzini
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`6/1999 Joao ......................... .. 340/426
`5,917,449 A
`6/1999 Sanderford et a1. ....... .. 342/457
`5,917,866 A
`6/1999 Pon ................ ..
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`5,920,873 A
`7/1999 Van Huben et a1. ....... .. 707/202
`5,924,090 A
`7/1999 Krellenstein ................. .. 707/5
`5,926,133 A
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`8/1999 Alamoutiet a1. .......... .. 370/330
`5,933,822 A
`8/1999 Braden-Harder et a1. ..... .. 707/5
`5,936,572 A
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`5,945,948 A
`8/1999 Buford et a1. ............. .. 342/457
`5,949,815 A
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`5,952,969 A
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`5,959,568 A
`9/1999 Woolley .................... .. 342/42
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`5,982,891 A 11/1999 Ginter et a1. ................. .. 380/4
`5,983,214 A 11/1999 Lang et a1. ................... .. 707/1
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`2/2000 Forssén et a1. ............ .. 342/457
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`3/2000 Gilhousen .... ..
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`6,038,668 A
`3/2000 Chipman et a1. .......... .. 713/201
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