Patent US5940753A successfully refreshed from Google Patents.
US5940753A
Expired / Lapsed
US
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Controller for cellular communications system
Assignee: ATC Technologies LLC
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Filing: 1997-10-06
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Granted: 1999-08-17
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Expires: 2017-10-06
Abstract
Abstract A cellular communications system is provided have both satellite nodes and surface nodes for providing mobile cellular communications services for a plurality of mobile user units. The surface and satellite nodes are fully integrated by a network controller for providing service over large areas. Multiple beam, relatively high gain antennas are disposed in the satellite nodes to establish satellite cells having enough gain in the satellite part of the system such that a user unit need only comprise a small, mobile handset with a non-directional antenna for communications with both ground nodes and satellite nodes.
Inventors
- 👤 Albert J. Mallinckrodt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:26
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/18; H04W52/22; H04W52/228; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185; H04B7/1853; H04B7/18532; H04B7/18558; H04B7/18567; H04B7/204; H04B7/2041; H04B7/216; H04L; H04L1/00; H04L1/004; H04L1/0041; H04L1/0042; H04L1/0045; H04L1/0047; H04L1/0056; H04L1/0071; H04L1/20; H04L5/00; H04L5/02; H04W12/00; H04W12/08; H04W12/084; H04W12/12; H04W12/126; H04W52/225; H04B7/1851; H04B7/18517; H04B7/18534; H04B7/18539; H04B7/18543; H04W52/06; H04W52/08; H04W52/10; H04W92/00; H04W92/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
A cellular communications system comprising: at least one space node having a multiple beam antenna positioned so as to establish a first set of cells, each antenna including means for transmitting and receiving radio signals; at least one surface node positioned so as to establish a second set of cells, each surface node including means for transmitting and receiving radio signals; a plurality of user units positioned within the first or second set of cells, each user unit including means for transmitting and receiving radio signals for communicating with at least one space node and at least one surface node and response means for establishing selective communication with at least one of said nodes; and a network controller connected to at least one satellite node control center and at least one regional node control center for selectively allocating the top level allocation of communications among said user units and said space and surface nodes.
Claim 2
Dependent Claim
154 words
A cellular communications system comprising: at least one space node having a multiple beam antenna positioned so as to establish a first set of cells, each antenna including means for transmitting and receiving radio signals; at least one surface node positioned so as to establish a second set of cells, each surface node including means for transmitting and receiving radio signals; a plurality of user units positioned within the first or second set of cells, each user unit including means for transmitting and receiving radio signals for communicating with at least one space node and at least one surface node and response means for establishing selective communication with at least one of said nodes; and a network controller connected to at least one satellite node control center and at least one regional node control center for selectively allocating the top level allocation of communications among said user units and said space and surface nodes.
Claim 3
Dependent Claim
28 words
The cellular communications system of claim 1 wherein the network controller is operationally connected to said at least one space node and said at least one surface node.
Claim 4
Dependent Claim
38 words
The cellular communications system of claim 1 wherein the user units include link control means for permitting the user of the user unit to designate communications between said user unit and said space nodes or said surface nodes.
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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) | 2002-08-16 | 2003-02-15 | 2003-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-16 | 2007-02-15 | 2007-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-16 | 2011-02-15 | 2011-08-17 | $7700.00 | Window Closed / Lapsed |