Byte-interleaving systems and methods for 100G optical transport enabling multi-level optical transmission

A method for high-data rate optical transport enabling multi-level optical transmission, comprising:

• receiving a high-data rate client signal;
• 1:2 byte-deinterleaving the high-data rate client signal into a plurality of odd column frames and a plurality of even column frames;
• combining a pair of odd column frames to create an odd transport frame and combining a pair of even column frames to create an even transport frame;
• relocating selected bytes from a first half of the odd transport frame to a second half of the odd transport frame and relocating selected bytes from a first half of the even transport frame to a second half of the even transport frame;
• inserting selected bytes into the first half of the odd transport frame and inserting selected bytes into the first half of the even transport frame;
• inserting FEC columns into the odd transport frame and inserting FEC columns into the even transport frame;
• and
• providing a first logical flow associated with the odd transport frame and a first channel and providing a second logical flow associated with the even transport frame and a second channel.

A method for high-data rate optical transport enabling multi-level optical transmission, comprising:

• receiving a first logical flow associated with an odd transport frame and a first channel and receiving a second logical flow associated with an even transport frame and a second channel;
• relocating selected bytes from a second half of the odd transport frame to a first half of the odd transport frame and relocating selected bytes from a second half of the even transport frame to a first half of the even transport frame;
• inserting selected bytes into the second half of the odd transport frame and inserting selected bytes into the second half of the even transport frame;
• separating the odd transport frame into a pair of odd column frames and separating the even transport frame into a pair of even column frames;
• aligning the first channel and the second channel;
• and
• 2:1 byte-interleaving the pair of odd column frames and the pair of even column frames into a high-data rate client signal.