Dynamic optical switching in a telecommunications network

Patent metadata

Field	Value
Publication number	US-11863918-B2
Application number	US-202117374093-A
Country	US
Kind code	B2
Filing date	Jul 13, 2021
Priority date	Feb 22, 2019
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

Implementations described and claimed herein provide systems and methods for a configurable optical peering fabric to dynamically create a connection between participant sites without any physical site limitations or necessity of specialized client and network provider equipment being located within such a facility. Client sites to a network may connect to a configurable switching element to be interconnected to other client sites in response to a request to connect the first client site with a second site, also connected to network, via the switching element. A request may trigger verification of the requested and, upon validation, transmission of an instruction to the switching element to enable the cross connect within the switching element. The first site and the second site may thus be interconnected via the switching element in response to the request, without the need to co-locate equipment or to manually install a jumper between client equipment.

First claim

We claim:

1. A method for providing a data network, the method comprising:
connecting, via a plurality of optical fiber connections, a plurality of participant sites to an optical switching device, each of the plurality of participant sites connected to the optical switching device with a respective optical fiber connection of the plurality of optical fiber connections, wherein a total length of each of the respective optical fiber connections is defined by an acceptable transmission line loss value based on a type of optical fiber of the respective optical fiber connection,
wherein a network service area is defined by a bandwidth value for transmission of data from the optical switching device.

2. The method of claim 1 wherein the transmission line loss value comprises an upper bound, based on the bandwidth value for the transmission of data, of line loss and a lower bound, based on the bandwidth value for the transmission of data, of line loss.

3. The method of claim 1 wherein the total length of at least one of the plurality of optical fiber connections comprises a length of a first portion of the at least one of the plurality of optical fiber connections plus a length of a second portion of the at least one of the plurality of optical fiber connections.

4. The method of claim 1 wherein the first site of the plurality of participant sites comprises first fiber terminating equipment, the respective optical fiber connection of the plurality of optical fiber connections for the first site connecting the first fiber terminating equipment of the first site and a first interface of the optical switching device.

5. The method of claim 4 wherein the second site of the plurality of participant sites comprises second fiber terminating equipment, the respective optical fiber connection of the plurality of optical fiber connections for the second site connecting the second fiber terminating equipment of the second site and a second interface of the optical switching device.

6. The method of claim 5 wherein the optical switching device dynamically connecting, in response to a connection request, signals or wavelengths of the first interface of the optical switching device to signals or wavelengths of the second interface of the optical switching device.

7. The method of claim 6 wherein the optical switching device is a reconfigurable optical add-drop multiplexer network device.

8. The method of claim 1 further comprising:
locating, within a network service area, a new participant site; and
connecting the new participant site to the optical switching device, wherein the location of the new participant site within the network service area is based on the type of optical fiber of the respective optical fiber connection for the new participant site and the acceptable transmission line loss value.

Assignees

• Level 3 Communications Llc

Inventors

• Clark Laurel
• Cooper Iii Clyde David
• Dugan Andrew

Classifications

• H04J14/021

  Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] · CPC title

• H04J14/0212

  using optical switches or wavelength selective switches [WSS] · CPC title

• H04Q11/0062 Primary

  Network aspects · CPC title

• H04J14/0201

  Add-and-drop multiplexing · CPC title

• H04L63/0876

  based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint · CPC title