Patent US6157614A successfully refreshed from Google Patents.
US6157614A
Expired / Lapsed
US
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Wireless ATM network with high quality of service scheduling
Assignee: Wistron Corp
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Filing: 1997-10-22
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Granted: 2000-12-05
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Expires: 2017-10-22
Abstract
Abstract Methods and systems for a wireless ATM network with high quality of service scheduling are provided. In one embodiment, a wireless ATM network with per-VC scheduling, a virtual framer for periodical, request-less scheduling, and a virtual shaper for request-based scheduling are provided.
Inventors
- 👤 Eliezer Pasternak
- 👤 Itai Aaronson
- 👤 Gideon Ben-Efraim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:28
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5603; H04L2012/5604; H04L2012/5607; H04L2012/5678; H04L2012/5679
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, and wherein said scheduler includes a virtual framer that provides request-less periodical grants for one or more virtual circuits.
Claim 2
Independent Claim
82 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, and wherein said scheduler includes a virtual framer that provides request-less periodical grants for one or more virtual circuits.
Claim 3
Dependent Claim
25 words
A system as in claim 1, wherein said shared medium comprises air, and each of said terminals and said base station include a radio unit.
Claim 4
Dependent Claim
28 words
A system as in claim 1, wherein said shared medium comprises coax or fiber optics, and each of said terminals and said base station include a medium adapter.
Claim 5
Dependent Claim
22 words
A system as in claim 1, wherein at least one of said grants include information identifying the virtual circuit granted the transmission.
Claim 6
Dependent Claim
23 words
A system as in claim 4, wherein said scheduler includes a virtual framer that provides periodical grants for one ore more virtual circuits.
Claim 7
Dependent Claim
24 words
A system as in claim 1, wherein said scheduler includes a virtual shaper that provides grants in response to requests received from the terminals.
Claim 8
Dependent Claim
25 words
A system as in claim 6, wherein said virtual shaper generates next compliant times based on the last compliant time of a dual-leaky bucket implementation.
Claim 9
Dependent Claim
20 words
A system as in claim 6, wherein said virtual shaper calculates the next compliant time by a fixed increment value.
Claim 10
Independent Claim
103 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, wherein said scheduler includes a virtual framer that provides periodical grants for one or more virtual circuits and a virtual shaper, wherein said virtual shaper generates next compliant times based on the last compliant time of a dual-leaky bucket implementation.
Claim 11
Independent Claim
103 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, wherein said scheduler includes a virtual framer that provides periodical grants for one or more virtual circuits and a virtual shaper, wherein said virtual shaper generates next compliant times based on the last compliant time of a dual-leaky bucket implementation.
Claim 12
Independent Claim
98 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, wherein said scheduler includes a virtual framer that provides periodical grants for one or more virtual circuits and a virtual shaper, wherein said virtual shaper calculates the next compliant time by a fixed increment value.
Claim 13
Independent Claim
98 words
A system for a shared-medium cell-based metropolitan area network including: a plurality of terminals; and a base station for transmitting and receiving from said terminals over the shared medium, wherein said base station includes a scheduler that regulates the upstream flow of cells by broadcasting grants with permissions to transmit, wherein bandwidth requests from said terminals include information identifying the requesting virtual circuit, wherein said scheduler includes a virtual framer that provides periodical grants for one or more virtual circuits and a virtual shaper, wherein said virtual shaper calculates the next compliant time by a fixed increment value.
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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) | 2003-12-05 | 2004-06-05 | 2004-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-05 | 2008-06-05 | 2008-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-05 | 2012-06-05 | 2012-12-05 | $7700.00 | Window Closed / Lapsed |