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US 8,619,807 B2Granted
High-capacity packet-switched ring network
AssigneeAT&T Intellectual Property II, L.P.
InventorsMikhail Borditsky, Nicholas J Frigo, Aleksandra Smiljanic
Life of this patent
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Abstract
A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC protocol along with an admission algorithm enhance the network throughput capacity.
Claims12
A method for processing packets, comprising:
- receiving transmission reservations for a time period having a plurality of cycles via a control channel;
- scheduling packet transmissions in the plurality of cycles in accordance with the transmission reservations;
- and
- aligning in time packets of varying wavelengths by a wavelength stacking assembly to form a composite packet for transmission according to the packet transmissions that are scheduled, wherein the packets of varying wavelengths are transmitted together in the composite packet in a same time slot.
1 more element
A system for making decisions when to transmit and receive data packets, comprising:
- a controller node:
- for receiving transmission reservations for a time period having a plurality of cycles via a control channel;
- and
- for scheduling packet transmissions in the cycles in accordance with the transmission reservations;
- and
- a transmitting node:
- for aligning in time packets of varying wavelengths to form a composite packet for transmission according to the packet transmissions that are scheduled;
- and
- for transmitting the packets of varying wavelengths together in the composite packet in a same time slot.
6 more elements
Dependencies are inferred from the claim text.