Patent application number | Description | Published |
20090116837 | METHOD AND SYSTEM FOR CONTROLLING OPTICAL NETWORKS - An optical control system is described which is capable of maintaining and optimizing a fiber-optic transport system within it's domain of control while interacting with other optical systems which are controlled independently. This allows the optical system to be incorporated as a building block into a larger optical network in a relatively arbitrary fashion. This provides an underlying control system for a non-linear system like optics network that is flexible and extensible. | 05-07-2009 |
20110255443 | VIRTUAL ROUTERS FOR GMPLS NETWORKS - Virtual routers that abstract photonic sub-domains are provided for GMPLS networks. A virtual router uses a link viability matrix to keep track of the set of viable connections between inputs and outputs of a photonic sub-domain. A virtual router may receive RSVP-TE signaling messages and either allocate a working input to output link pair or, if explicitly signaled, verify that the requested link is currently viable. A virtual router also advertises, in its link state updates, the current set of possible outputs for any input link. Shortest path computations can be implemented utilizing virtual routers by modifying a topology graph in accordance with the link viability matrix of the virtual router. | 10-20-2011 |
20140328583 | SYSTEMS AND METHODS FOR OPTICAL DARK SECTION CONDITIONING - Embodiments of the disclosure are directed to optical dark section conditioning. An embodiment generates at least one of a broadband noise or signal at the head end of a section for a first module of the section; and operates all other modules of the section in gain control mode. | 11-06-2014 |
20140334817 | NETWORK SPECIFIC ROUTING AND WAVELENGTH ASSIGNMENT FOR OPTICAL COMMUNICATIONS NETWORKS - To facilitate routing and wavelength assignment (RWA) in an optical communications network having a given topology of associated nodes and links, a set of system characteristics associated with operating the optical communications network may be determined. Different sets of values may be selected for one or more parameters of an RWA algorithm defined for operating a set of services on the optical communications network, and associated sets of routes and wavelengths that may be assigned to the set of services via the RWA algorithm in accordance with the different sets of values and the set of system characteristics may be determined. The different sets of routes and wavelengths may be compared based on one or more fitness criteria and thereby selected between. A path computation engine of the optical communications network may then be provisioned with the selected set of values for the one or more parameters. | 11-13-2014 |
20150229528 | SYSTEMS AND METHODS FOR MANAGING EXCESS OPTICAL CAPACITY AND MARGIN IN OPTICAL NETWORKS - A method, a network element, and a network include determining excess margin relative to margin needed to insure performance at a nominal guaranteed rate associated with a flexible optical modem configured to communicate over an optical link; causing the flexible optical modem to consume most or all of the excess margin, wherein the capacity increased above the nominal guaranteed rate includes excess capacity; and mapping the excess capacity to one or more logical interfaces for use by a management system, management plane, and/or control plane. The logical interfaces can advantageously be used by the management system, management plane, and/or control plane as one of restoration bandwidth or short-lived bandwidth-on-demand (BOD) connections, such as sub-network connections (SNCs) or label switched paths (LSPs). | 08-13-2015 |
20150333824 | MARGIN-BASED OPTIMIZATION SYSTEMS AND METHODS IN OPTICAL NETWORKS FOR CAPACITY BOOSTING - Systems and methods of optimizing capacity of an optical network include identifying a first wavelength with an associated target capacity; determining that the first wavelength has insufficient capability to operate at the associated target capacity; and adjusting one or more wavelengths to increase capability of the first wavelength such that the first wavelength can operate at the associated target capacity. | 11-19-2015 |
20150333862 | MARGIN-BASED OPTIMIZATION SYSTEMS AND METHODS IN OPTICAL NETWORKS BY INTENTIONALLY REDUCING MARGIN - Systems and methods of optimizing capacity of an optical network, through intentionally reducing margin on one or more wavelengths, include identifying a first wavelength capable of using excess capacity; determining the one or more wavelengths that have extra margin; adjusting at least one of the one or more wavelengths to reduce associated margin to a nominal margin so as to increase supportable capacity of the first wavelength; and increasing capacity of the first wavelength based on the supportable capacity. | 11-19-2015 |
20150333864 | MARGIN-BASED OPTIMIZATION SYSTEMS AND METHODS IN OPTICAL NETWORKS TO UNBLOCK SUPERCHANNELS - Systems and methods of increasing the supportable capacity from a first point to a second point in an optical network, include identifying a first optical signal that occupies a first portion of optical spectrum from the first point to the second point; identifying a second optical signal 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; adjusting the second optical signal to minimize part of or remove all of the second portion that is adjacent to the first optical signal to provide a freed up portion of the second portion; and adjusting the first optical signal to occupy some or all of the freed up portion. | 11-19-2015 |