Scheduling method and system for communication systems that offer multiple classes of service

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United States of America Patent

PATENT NO 7609631
APP PUB NO 20070153690A1
SERIAL NO

11671207

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Abstract

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A method and system for prioritizing connection data that is associated with different classes of service for transmission in a frame based communication system. These classes of service can include CBR, nrt-VBR, MGR, and UBR traffic. One embodiment of the scheduling method and system uses hierarchical round-robin (HRR) with deficit round-robin (DRR). In this embodiment, the scheduling method and system guarantees minimum rates of nrt-VBR and MGR traffic to the connections. The excess bandwidth is then fairly allocated between the existing connections and their classes of service. For example, the excess is allocated for UBR traffic and for the excess demands of the nrt-VBR and MGR connections. In one embodiment, the scheduling method and system allocates the excess bandwidth in a frame to the existing connections using weighted round robin to differentiate between different classes of service. In one embodiment, excess allocation to nrt-VBR and MGR connections is rolled back into the deficit counters for the minimum guaranteed rates of nrt-VBR and MGR connections.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HARINGTON VALVE, LLCLOS ALTOS, CA0

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bourlas, Yair 17876 Aguamiel Rd. 72 1567
Lin, George 13756 Durango Dr. 45 597
Stanwood, Kenneth 935 Rosemary Ave. 24 297

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