PATENTSCOPE sera indisponible durant quelques heures pour des raisons de maintenance le lundi 03.02.2020 à 10:00 AM CET
Recherche dans les collections de brevets nationales et internationales
Une partie du contenu de cette demande n'est pas disponible pour le moment.
Si cette situation persiste, contactez-nous auObservations et contact
1. (WO2015178997) SYSTÈMES ET PROCÉDÉS D'OPTIMISATION BASÉE SUR LA MARGE, DANS DES RÉSEAUX OPTIQUES
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. A method of optimizing capacity of an optical network, the method comprising:

analyzing a plurality of wavelength services in the optical network;

determining an optimization of the plurality of wavelength services to increase the capacity of the optical network; and

adjusting the plurality of wavelength services based on the optimization.

2. The method of claim 1 , wherein the optimization comprises:

identifying a wavelength service and an associated target capacity; and

determining that the wavelength sendee is unable to operate at the associated target capacity; and

deteraiining adjustments to one or more of the plurality of wavelength services such that the identified wavelength service can operate at the associated target capacity.

3. The method of claim 1, wherein the optimization comprises:

identifying a wavelength service capable of using additional capacity;

determining that one or more of the plurality of wavelength services has extra margin; determining adjustments to at least one of the one or more of the plurality of wavelength to reduce associated margin to a nominal margin so as to increase supportable capacity of the identified wavelength service.

4. The method of claim 1, wherein the optimization comprises increasing supportable capacity from a first point to a second point in an optical network through:

identifying a first wavelength service that occupies a first portion of optical spectrum from the first point to the second point;

identifying a second wavelength service that occupies a second portion of the optical spectrum from the first point to the second point, wherein the second portion is adjacent to the first portion;

determining an adjustment for the second wavelength service to remove part or all of the second portion of optical spectrum that is adjacent to the first portion of optical spectrum to provide a freed up portion of the second portion; and

determining an adjustment to the first wavelength service to occupy some or all of the freed up portion.

5. The method of claim 1, wherein the adjustments are any one or more of modifying wavelength, modifying launch power, modifying or changing modulation format, modifying spectral characteristics, adjusting amplifier settings, changing baud rate, and changing Forward Error Correction (FEC) parameters.

6. The method of claim 1, wherein the analyzing the plurality of wavelength services includes determining Net System Margin and the optimization includes adjusting the Net System Margin to change the capacity.

7. The method of claim 1, wherein the optimization is a nonlinear optimization which models modem bit rate, Optical Signal to Noise Ratio (OSNR), and whether or not a signal can support additional capacity as real functions.

8. The method of claim 1 , wherein the optimization and the adjusting is simulated in an application prior to operation on nodes in the optical network.

9. A controller configured to optimize capacity of an optical network, the controller comprising:

a processor; and

memory storing instructions that, when executed, cause the processor to

analyze a plurality of wavelength services in the optical network, determine an optimization of the plurality of wavelength services to increase the capacity of the optical network, and

cause adjustment of the plurality of wavelength services based on the optimization.

10. The controller of claim 9, wherein, for the optimization, the instructions that, when executed, further cause the processor to

identify a wavelength service and an associated target capacity; and

determine that the wavelength service is unable to operate at the associated target capacity; and

determine adjustments to one or more of the plurality of wavelength services such that the identified wavelength service can operate at the associated target capacity.

11. The controller of claim 9, wherein, for the optimization, the instructions that, when executed, further cause the processor to

identify a wavelength service capable of using additional capacity;

determine that one or more of the plurality of wavelength services has extra margin; determine adjustments to at least one of the one or more of the plurality of wavelength to reduce associated margin to a nominal margin so as to increase supportable capacity of the identified wavelength service.

12. The controller of claim 9, wherein the optimization comprises increasing supportable capacity from a first point to a second point in an optical network, and wherein, for the optimization, the instructions that, when executed, further cause the processor to

identify a first wavelength service that occupies a first portion of optical spectrum from the first point to the second point;

identify a second wavelength service that occupies a second portion of the optical spectrum from the first point to the second point, wherein the second portion is adjacent to the first portion;

determine an adjustment for the second wavelength service to remove part or all of the second portion of optical spectrum that is adjacent to the first portion of optical spectrum to provide a freed up portion of the second portion; and

determine an adjustment to the first wavelength service to occupy some or all of the freed up portion.

13. The controller of claim 9, wherein the adjustments are any one or more of modifying wavelength, modifying launch power, modifying or changing modulation format, modifying spectral characteristics, adjusting amplifier settings, changing baud rate, and changing Forward Error Correction (FEC) parameters; and

wherein the plurality of wavelength services are analyzed to determine Net System Margin and the optimization includes adjustments to the Net System Margin to change the capacity.

14. The controller of claim 9, wherein the optimization is a nonlinear optimization which models modem bit rate, Optical Signal to Noise Ratio (OSNR), and whether or not a signal can support additional capacity as real functions.

15. An optical network comprising:

a plurality of nodes interconnected by a plurality of links; and

a controller communicatively coupled to one or more of the plurality of nodes, wherein the controller is configured to

analyze a plurality of wavelength services in the optical network, determine an optimization of the plurality of wavelength services to increase the capacity of the optical network, and

cause adjustment of the plurality of wavelength services based on the optimization.