Messaging channel in a coherent optical DSP frame
AssigneeCiena Corporation
InventorsSebastien Gareau, Timothy James Creasy
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Abstract
Systems and methods include receiving (102) a plurality of symbols that are part of a defined Digital Signal Processing (DSP) frame for coherent optical communication, wherein the DSP frame structure has a messaging channel incorporated therein that includes a subset of the plurality of symbols; capturing (104) multiple samples of the messaging channel; and determining (106) a message in the messaging channel based on analysis of the multiple samples. The method can further include transmitting (108), in the messaging channel, a reply to the message with the reply being repeated multiple times. The analysis is performed prior to Forward Error Correction (FEC) decoding on the data path.
Claims18
A coherent optical transmitter comprising circuitry configured to:
- obtain information for a message to be transmitted to an adjacent coherent optical receiver,
- modulate the information on a plurality of symbols that are part of a defined Digital Signal Processing (DSP) frame structure, and
- cause transmission, to the adjacent coherent optical receiver, of the DSP frame with the information modulated on the plurality of symbols, wherein the transmission includes repeating the information for reception at the adjacent coherent optical receiver prior to Forward Error Correction decoding in a data path.
A coherent optical receiver comprising circuitry configured to:
- receive symbols of a defined Digital Signal Processing (DSP) frame structure from an adjacent coherent transmitter,
- analyze a plurality of symbols of the received symbols, wherein the plurality of symbols includes repetition of the messages for prior to Forward Error Correction in a data path, and
- determine a message from the adjacent coherent transmitter based on the analysis of the plurality of symbols.
A method comprising:
- obtaining information for a message to be transmitted to an adjacent coherent optical receiver;
- modulating the information on a plurality of symbols that are part of a defined Digital Signal Processing (DSP) frame structure;
- and
- transmitting the DSP frame with the information modulated on the plurality of symbols, wherein the transmitting includes repeating the information for reception at the adjacent coherent optical receiver, prior to Forward Error Correction decoding in a data path.
Dependencies are inferred from the claim text.