US6323803B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for incremental broadcast of GPS navigation data in a cellular network
Assignee: IDTP Holdings Inc
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Filing: 1999-08-10
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Granted: 2001-11-27
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Expires: 2019-08-10
Abstract
Abstract A system for broadcasting GPS assistance data in a wireless communication network to mobile stations is disclosed herein. Each mobile station includes a transceiver operating in the wireless communication network and an integrated GPS receiver to make GPS positioning measurements. The system includes a GPS receiver for obtaining orbital modeling information for visible GPS satellites and DGPS correction data. A transceiver communicates with mobile stations in the wireless communication network. A broadcast controller is operatively associated with the GPS receiver and the transceiver for selectively establishing a direct point-to-point channel with select mobile stations for transferring the orbital modeling information and for periodically broadcasting the DGPS correction data on the wireless communication network to all mobile stations communicating in the wireless communication network.
Inventors
- 👤 Edward Vincent Jolley
- 👤 Leland Scott Bloebaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:26
CPC Classifications
G; G01; G01S; G01S19/00; G01S19/01; G01S19/03; G01S19/05; G01S19/07; G01S19/071; G01S19/38; G01S19/39; G01S19/40; G01S19/41; G01S5/00; G01S5/0009; G01S5/009
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
138 words
A method of broadcasting Global Positioning System (GPS) assistance data in a wireless communication network to a mobile stations, each mobile station comprising a transceiver operating in the wireless communication network and an integrated GPS receiver to make GPS positioning measurements, the method comprising the steps of: establishing a direct point-to-point channel with a select mobile station; transferring orbital modeling information on the point-to-point channel to the select mobile station for visible GPS satellites; broadcasting GPS correction data on the wireless communication network to all mobile stations communicating in the wireless communication network; and updating assistance data by broadcasting data representing updated orbital modeling information to all mobile stations communicating in the wireless communication network, said updating comprising parsing the data representing updated orbital modeling information and selectively adding the parsed data to unused portions of broadcast messages.
Claim 2
Independent Claim
138 words
A method of broadcasting Global Positioning System (GPS) assistance data in a wireless communication network to a mobile stations, each mobile station comprising a transceiver operating in the wireless communication network and an integrated GPS receiver to make GPS positioning measurements, the method comprising the steps of: establishing a direct point-to-point channel with a select mobile station; transferring orbital modeling information on the point-to-point channel to the select mobile station for visible GPS satellites; broadcasting GPS correction data on the wireless communication network to all mobile stations communicating in the wireless communication network; and updating assistance data by broadcasting data representing updated orbital modeling information to all mobile stations communicating in the wireless communication network, said updating comprising parsing the data representing updated orbital modeling information and selectively adding the parsed data to unused portions of broadcast messages.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein the transferring step includes the step of transferring GPS satellite ephemeris and clock correction information.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein the transferring step includes the step of transferring GPS satellite almanac data.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the broadcasting step comprises the step of broadcasting DGPS correction data.
Claim 6
Dependent Claim
27 words
The method of claim 1 further comprising the step of comparing updated orbital modeling information to existing orbital modeling information to determine deviations for currently visible satellites.
Claim 7
Dependent Claim
17 words
The method of claim 5 wherein the parsing step comprises parsing the deviations for currently visible satellites.
Claim 8
Dependent Claim
18 words
The method of claim 1 wherein the updating step comprises compressing the data representing updated orbital modeling information.
Claim 9
Dependent Claim
19 words
The method of claim 7 wherein the updating step compresses the data by determining deviations for currently visible satellites.
Claim 10
Independent Claim
138 words
A method of incrementally broadcasting updated Global Positioning System (GPS) assistance data in a wireless communication network to mobile stations, each mobile station comprising a transceiver operating in the wireless communication network and an integrated GPS receiver to make GPS positioning measurements, the mobile stations having past orbital modeling information for recently visible GPS satellites, the method comprising the steps of: periodically receiving current orbital modeling information for currently visible satellites; comparing the received current orbital modeling information to the past orbital modeling information and responsive to any deviations developing updated orbital modeling information; and broadcasting updated orbital modeling information on the wireless communication network to all mobile stations communicating in the wireless communication network, said broadcasting comprising parsing data representing the updated orbital modeling information and selectively adding the parsed data to unused portions of broadcast messages.
Claim 11
Independent Claim
138 words
A method of incrementally broadcasting updated Global Positioning System (GPS) assistance data in a wireless communication network to mobile stations, each mobile station comprising a transceiver operating in the wireless communication network and an integrated GPS receiver to make GPS positioning measurements, the mobile stations having past orbital modeling information for recently visible GPS satellites, the method comprising the steps of: periodically receiving current orbital modeling information for currently visible satellites; comparing the received current orbital modeling information to the past orbital modeling information and responsive to any deviations developing updated orbital modeling information; and broadcasting updated orbital modeling information on the wireless communication network to all mobile stations communicating in the wireless communication network, said broadcasting comprising parsing data representing the updated orbital modeling information and selectively adding the parsed data to unused portions of broadcast messages.
Claim 12
Dependent Claim
17 words
The method of claim 9 wherein the parsing step comprises parsing the deviations for currently visible satellites.
Claim 13
Dependent Claim
18 words
The method of claim 9 wherein the broadcasting step comprises compressing data representing the updated orbital modeling information.
Claim 14
Dependent Claim
20 words
The method of claim 11 wherein the broadcasting step compresses the data by determining the deviations for currently visible satellites.
Claim 15
Dependent Claim
33 words
The method of claim 9 further comprising the step of adding data describing a relationship between respective time references of the wireless communication network and the GPS to unused portions of broadcast messages.
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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) | 2004-11-26 | 2005-05-28 | 2005-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-26 | 2009-05-28 | 2009-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-26 | 2013-05-28 | 2013-11-27 | $7700.00 | Window Closed / Lapsed |