US 11,722,271 B2
Channelized transmission over openZR-extended optical network
Catherine Yuan, Plano, TX (US); Muhammad S. Sarwar, Easton, CT (US); Malleswaraprasad Sunkara, Richardson, TX (US); Kentaro Nakamura, Plano, TX (US); Vijay Khopade, Murphy, TX (US); Albert Smith, Richardson, TX (US); Calvin Wan, Plano, TX (US); Dave Howell, Anna, TX (US); Jeffrey Holt, Allen, TX (US); and Sanjay Gera, Plano, TX (US)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki (JP)
Filed on Jul. 29, 2021, as Appl. No. 17/389,166.
Prior Publication US 2023/0037189 A1, Feb. 2, 2023
Int. Cl. H04L 5/00 (2006.01); H04L 12/40 (2006.01)
CPC H04L 5/0046 (2013.01) [H04L 5/0094 (2013.01); H04L 12/4013 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a first Ethernet signal having a first data rate less than a second data rate, the second data rate being a ZR data rate;
dividing the first Ethernet signal into a plurality of first-signal sub-signals that each have a third data rate that is less than the first data rate;
inserting a first respective alignment marker with respect to each respective first-signal sub-signal of the plurality of first-signal sub-signals;
generating a second Ethernet signal having the second data rate, the generating of the second Ethernet signal being based on the plurality of first-signal sub-signals such that the second Ethernet signal includes the plurality of first-signal sub-signals, the respective first-signal sub-signals being delineated in the second Ethernet signal by their respective first alignment markers;
providing the second Ethernet signal to a ZR network such that the second Ethernet signal is a ZR signal;
inserting a second alignment marker with respect to the second Ethernet signal, the second alignment marker delineating the second Ethernet signal; and
generating a third Ethernet signal having a fourth data rate that is greater than the second data rate, the generating of the third Ethernet signal including combining the second Ethernet signal with one or more other ZR signals that each have the second data rate, wherein the second Ethernet signal is delineated in the third Ethernet signal by the second alignment marker.