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US 10,454,617 B2Granted
Coding scheme and multiframe transmission in optical networks
AssigneeCisco Technology, Inc.
InventorsGilberto Loprieno, Davide Codella
Life of this patent
Estimating the term…
Abstract
An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.
Claims20
A method comprising:
- receiving an optical frame over an optical link within an optical network, wherein the optical frame has an alignment value, a bit interleaved parity value, a plurality of payloads of aggregated data and a plurality of forward error correction values;
- aligning content of the optical frame based on the alignment value to locate the bit interleaved parity value within the optical frame;
- monitoring the bit interleaved parity value;
- determining a transmission quality of the optical link based on the bit interleaved parity value;
- and
- performing forward error correction on each of the plurality of payloads using a respective one of the plurality of forward error correction values in response to the determining.
3 more elements
An apparatus comprising:
- an optical transceiver;
- and
- a processor coupled to the optical transceiver, and configured to:
- receive, via the optical transceiver, an optical frame over an optical link within an optical network, wherein the optical frame has an alignment value, a bit interleaved parity value, a plurality of payloads of aggregated data and a plurality of forward error correction values;
- align content of the optical frame based on the alignment value to locate the bit interleaved parity value within the optical frame;
- monitor the bit interleaved parity value;
- determine a transmission quality of the optical link based on the bit interleaved parity value;
- and
- perform forward error correction on each of the plurality of payloads using a respective one of the plurality of forward error correction values in response to determining the transmission quality of the optical link.
6 more elements
A method comprising:
- receiving an optical multiframe over an optical link within an optical network, wherein the optical multiframe comprises a plurality of payloads including aggregated data, an alignment value, a bit interleaved parity value and a forward error correction value, wherein the alignment value is split between at least two of a plurality of headers;
- aligning content of the optical multiframe based on the alignment value to locate the bit interleaved parity value within the optical multiframe;
- monitoring the bit interleaved parity value;
- determining a transmission quality of the optical link based on the bit interleaved parity value;
- and
- performing forward error correction on the optical multiframe with the forward error correction value in response to the determining.
3 more elements
Dependencies are inferred from the claim text.