US 11,777,634 B2 · Bundling capacity changes in channel holder based optical links

Abstract

Systems and methods include, responsive to a request for capacity change of X channels, X is an integer >1, on an optical section (14) and at an Optical Add/Drop Multiplexer (OADM) node (12) in an optical network (10), dividing optical spectrum on the optical section into M slots, M is an integer >1, such that the capacity change of X channels takes a maximum of N steps, N is an integer >1; and performing the capacity change of X channels in up to the N steps in an interleaved manner that changes a subset of the X channels in each of the N steps. For each step, the performing can include a maximum of M/N slots of the M slots with spacing between each of the M/N slots not used for the capacity change in a corresponding step. The spacing can be f, (N+f), (2N+f), . . . , M over the optical spectrum, where f is each step, f=1, 2, . . . , N.

Claims14

Dependent claims

An Optical Add/Drop Multiplexer (OADM) node comprising

a Wavelength Selective Switch (WSS) connected to the optical section;
and
a controller communicatively coupled to the WSS and configured to
receive a request for a capacity change for a plurality of channels on the optical section,
determine a grouping of the plurality of channels in N steps, N is an integer >1, based on an impact to existing traffic-carrying channels, wherein the grouping assigns each of the plurality of channels to a step of the N, steps, and
cause the N steps for the capacity change which includes switching between traffic-carrying channels and channel holders.

3 more elements

Dependencies are inferred from the claim text.

Bundling capacity changes in channel holder based optical links

Life of this patent

Bundling capacity changes in channel holder based optical links

Life of this patent

Abstract

Claims14