Transport of iscochronous and bursty data on a sonet ring

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6920113
SERIAL NO

09536416

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for using SONET technology to efficiently carry both data and voice traffic by Add/Drop Multiplexing of both isochronous traffic, such as voice and video, and non-isochronous traffic, such as data, in a SONET/SDH fiber-optic ring topology. A portion of a SONET/SDH frame structure (STS-1, STM-1 etc.) is shared by a number of nodes connected to an optical SONET/SDH ring (either directly or sitting behind a SONET/ADM). The inherent column structure of the SONET/SDH frame is used define dynamic channels (flexible bandwidth channels) between the nodes. Each dynamic channel can be assigned a priority and optionally a minimum bandwidth. The channel to column mapping is varied dynamically for data traffic by a centralized bandwidth manager which serves as an arbiter for requests for bandwidth. Both isochronous traffic and best effort data traffic may be carried in an STS-1 frame thereby allowing over-subscribing and statistical multiplexing of data channels over the unassigned portion of the STS-1 frame.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELSIMA CORPORATIONSANTA CLARA, CA18
Telsima Inc.SANTA CLARA, CA2

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kovvali, Surya Kumar Westborough, MA 28 784
Raghavan, Ramji Waltham, MA 10 296

Cited Art Landscape

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Patent Citation Ranking

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Other [Check patent profile for assignment information] (6)
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