Wireless ATM network with high quality of service scheduling
First Claim
Patent Images
1. 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, andwherein said scheduler includes a virtual framer that provides request-less periodical grants for one or more virtual circuits.
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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.
155 Citations
10 Claims
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1. A system for a shared-medium cell-based metropolitan area network including:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for a shared-medium cell-based metropolitan area network including:
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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.
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10. A system for a shared-medium cell-based metropolitan area network including:
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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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Specification