Service and power control orchestrator

Patent metadata

Field	Value
Publication number	US-12237868-B2
Application number	US-202318163636-A
Country	US
Kind code	B2
Filing date	Feb 2, 2023
Priority date	Feb 2, 2022
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

Networks and network elements having a service and power control orchestrator are disclosed, including a network element comprising a processor; a first port coupled to a first optical link carrying a first optical signal; a WSS having a multiplexer, a demultiplexer, and a control block operable to control the multiplexer/demultiplexer. The WSS operable to switch the first optical signal into a second optical signal. A second port is coupled to a second optical link, operable to carry the second optical signal, and in optical communication with the WSS. A memory stores an orchestrator application, an OTSA component, a service component, and instructions that cause the processor to: store a logical ROADM model having a connectivity matrix of the network element; receive a communication associated with the control block based on the logical ROADM model; and transmit, to the control block, a service loading sequence based on the logical ROADM model.

First claim

What is claimed is:

1. A network element, comprising:
a processor;
a first line port optically coupled to a first optical fiber link carrying a first optical signal having a first plurality of passbands;
a wavelength selective switch in optical communication with the first line port, the wavelength selective switch including a multiplexer, a demultiplexer, and one or more control block, and being operable to selectively switch the first optical signal into a second optical signal having a second plurality of passbands, the one or more control block operable to control one or more of: the multiplexer and the demultiplexer;
a second line port optically coupled to a second optical fiber link and operable to carry the second optical signal having the second plurality of passbands, the second line port in optical communication with the wavelength selective switch; and
a memory comprising a non-transitory processor-readable medium storing an orchestrator application, an optical topology and switching abstraction component, one or more service component, and storing processor-executable instructions that when executed by the processor cause the processor to:
store, by the optical topology and switching abstraction component, a logical ROADM model of the network element, the logical ROADM model having a connectivity matrix associating a cross-connection between a first logical line port associated with the first line port and a second logical line port associated with the second line port;
receive, by the orchestrator application, a communication from the one or more service component, the communication being associated with the one or more control block based on the logical ROADM model; and
transmit, to the one or more control block of the wavelength selective switch, one or more service loading sequence based on the logical ROADM model and the communication to cause the wavelength selective switch to control one or more of: the multiplexer via multiplexer WSS controls and the demultiplexer via demultiplexer WSS controls.

2. The network element of claim 1 , wherein the one or more service component is an orchestration control protocol, and wherein the memory further stores a loading manager and processor-executable instructions that when executed by the processor further cause the processor to:
receive, by the orchestrator application, the communication from one or more of an upstream orchestrator application and a downstream orchestrator application, the communication being a passband loading state of the first optical signal received; and
determine, by the orchestrator application in communication with the loading manager, the one or more service loading sequence based at least in part on the passband loading state of the first optical signal.

3. The network element of claim 2 , wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
receive, by the orchestrator application, the communication from the one or more service component, the communication further including a power control operation request, the power control operation request being operable to control a particular one of the one or more control block based on either the first logical line port or the second logical line port of the logical ROADM model; and
determine, by the orchestrator application in communication with the loading manager, the one or more service loading sequence based at least in part on the passband loading state of the first optical signal and the power control operation request associated with the second optical signal.

4. The network element of claim 3 , wherein the power control operation request is a disable adjust request from the upstream orchestrator application, wherein each of the first plurality of passbands has a power level, and wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
disable loading of the one or more service loading sequence; and
transmit, by the orchestrator application, the disable adjust request to one or more control block to cause the one or more control block being operable to control the multiplexer WSS controls to suspend optical power adjustments in the wavelength selective switch and store a reference power level for each of the first plurality of passbands in the memory.

5. The network element of claim 4 , wherein the power control operation request is an enable adjust request from the upstream orchestrator application, wherein each of the first plurality of passbands has a power level, and wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
enable loading of the one or more service loading sequence; and
transmit, by the orchestrator application, the enable adjust request to one or more control block to cause the one or more control block being operable to control the multiplexer WSS controls to enable optical power adjustments in the wavelength selective switch based at least in part on the reference power level for each of the first plurality of passbands in the memory.

6. The network element of claim 3 , wherein the particular one of the one or more control block is a Mux control block, wherein the power control operation request is a Mux WSS controls adjust request, and wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
transmit, by the orchestrator application, the Mux WSS controls adjust request to the Mux control block being operable to control the multiplexer WSS controls and cause the wavelength selective switch to meet a reference power level for the second optical signal.

7. The network element of claim 3 , wherein the one or more control block is one or more first control block, the power control operation request is a link level optical power controls adjust request from the upstream orchestrator application, wherein one of the first optical fiber link further comprises one or more optical amplifier optically disposed thereon, the one or more optical amplifier having one or more second control block, and wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
transmit, by the orchestrator application to the one or more second control block, an adjust link control causing the one or more optical amplifier to meet an optical power target of the second optical signal.

8. The network element of claim 1 , wherein the memory further stores processor-executable instructions that when executed by the processor further cause the processor to:
receive, by the orchestrator application, the communication from the one or more control block of the wavelength selective switch, the communication having a passband loading state of the first optical signal; and
transmit, by the orchestrator application, the passband loading state of the first optical signal to one or more of an upstream orchestrator application and a downstream orchestrator application.

9. A network element, comprising:
a first flexible ROADM module comprising:
a first system port;
a second system port;
a first line port optically coupled to a first optical fiber link carrying a first optical signal having a first group of passbands;
a first processor; and
a first memory comprising a non-transitory processor-readable medium storing first processor-executable instructions;

a second flexible ROADM module comprising:
a third system port;
a fourth system port;
a second line port optically coupled to the first flexible ROADM modu

Assignees

• Infinera Corp

Inventors

• Ramanathan Baranidhar
• Kunjidhapatham Ashok
• RAMACHANDRAN Sanjeev
• Buset Jonathan
• Satyarthi Nikhil
• Yellinedi Bhupathi Rao
• Sreenivasacharya Badareenath Alur
• Veedu Anil Naduvile
• Deshpande Aryabhata
• Singh Servesh
• Parkasam Dinesh Kumar

Classifications

• H04J14/0221

  Power control, e.g. to keep the total optical power constant · CPC title

• H04J14/02214

  by re-allocation of data channels · CPC title

• H04B10/294

  in a multiwavelength system, e.g. gain equalisation · CPC title

• H04J14/0271

  Impairment aware routing · CPC title

• H04B10/271 Primary

  Combination of different networks, e.g. star and ring configuration in the same network or two ring networks interconnected · CPC title