US 11,057,690 B2
Spectrum assignments for application throughout an optical network element in a flexible-channel configuration
Choudhury A. Al Sayeed, Stittsville (CA); and Khaled Maamoun, Nepean (CA)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Nov. 14, 2019, as Appl. No. 16/684,096.
Prior Publication US 2021/0152900 A1, May 20, 2021
Int. Cl. H04B 10/00 (2013.01); H04Q 11/00 (2006.01); H04J 14/02 (2006.01); H04J 14/00 (2006.01)
CPC H04Q 11/0066 (2013.01) [H04J 14/0212 (2013.01); H04J 14/0267 (2013.01); H04Q 11/0005 (2013.01); H04Q 2011/0016 (2013.01); H04Q 2011/0073 (2013.01); H04Q 2011/0086 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical network element comprising:
line devices configured to communicate optical signals with external network elements along one or more degrees; and
add/drop devices configured to perform at least one of adding one or more optical channels to the optical signals and removing one or more optical channels to the optical signals;
wherein the line devices and add/drop devices are configured to receive control signals from a spectrum management controller;
wherein the control signals from the spectrum management controller are configured to allocate a first spectrum assignment for routing the optical signals through the line devices and further configured to allocate a second spectrum assignment for routing the optical signals through the add/drop devices; and
wherein the second spectrum assignment is different from the first spectrum assignment, and wherein the add/drop devices have different actuator resolution and optical filter penalty constraints for allocating a channel than the line devices.