公开(公告)号：US20220407608A1

公开(公告)日：2022-12-22

申请号：US17352705

申请日：2021-06-21

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Maurizio Di Vizio ,  Silvia Turolla

IPC: H04B10/69 ,  H04B10/079 ,  H04B17/336

Abstract: Methods for configuring an optical link in which a distribution of transmission data rates and line rates are configured for a predetermined amount of optical bandwidth to maximize transmission capacity. In these methods, a controller of an optical network obtains input parameters that include a signal-to-noise ratio (SNR) for optical signals and an allocated bandwidth of the optical link, further obtains, for each line rate, a mapping of transmission data rates along a frequency spectrum of the allocated bandwidth compatible with the SNR, and generates a channel plan in which a number of traffic modes and a distribution of a plurality of channels in the allocated bandwidth are set to maximize transmission capacity. The plurality of channels is used for transmitting the signals on the optical link. The controller configures at least one optical network element in the optical network to establish the optical link based on the channel plan.

公开(公告)号：US11870499B2

公开(公告)日：2024-01-09

申请号：US18093170

申请日：2023-01-04

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Maurizio Di Vizio ,  Silvia Turolla

IPC: H04J14/02 ,  H04B10/69 ,  H04B17/336 ,  H04B10/079

CPC classification number: H04B10/6932 ,  H04B10/07953 ,  H04B10/07955 ,  H04B17/336 ,  H04J14/0227

Abstract: Methods for configuring an optical link in which a distribution of transmission data rates and line rates are configured for a predetermined amount of optical bandwidth to maximize transmission capacity. In these methods, a controller of an optical network obtains input parameters that include a signal-to-noise ratio (SNR) for optical signals and an allocated bandwidth of the optical link, further obtains, for each line rate, a mapping of transmission data rates along a frequency spectrum of the allocated bandwidth compatible with the SNR, and generates a channel plan in which a number of traffic modes and a distribution of a plurality of channels in the allocated bandwidth are set to maximize transmission capacity. The plurality of channels is used for transmitting the signals on the optical link. The controller configures at least one optical network element in the optical network to establish the optical link based on the channel plan.

公开(公告)号：US11581952B2

公开(公告)日：2023-02-14

申请号：US17352705

申请日：2021-06-21

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Maurizio Di Vizio ,  Silvia Turolla

IPC: H04J14/02 ,  H04B10/69 ,  H04B17/336 ,  H04B10/079

Abstract: Methods for configuring an optical link in which a distribution of transmission data rates and line rates are configured for a predetermined amount of optical bandwidth to maximize transmission capacity. In these methods, a controller of an optical network obtains input parameters that include a signal-to-noise ratio (SNR) for optical signals and an allocated bandwidth of the optical link, further obtains, for each line rate, a mapping of transmission data rates along a frequency spectrum of the allocated bandwidth compatible with the SNR, and generates a channel plan in which a number of traffic modes and a distribution of a plurality of channels in the allocated bandwidth are set to maximize transmission capacity. The plurality of channels is used for transmitting the signals on the optical link. The controller configures at least one optical network element in the optical network to establish the optical link based on the channel plan.

公开(公告)号：US20230137204A1

公开(公告)日：2023-05-04

申请号：US18093170

申请日：2023-01-04

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Maurizio Di Vizio ,  Silvia Turolla

IPC: H04B10/69 ,  H04B17/336 ,  H04B10/079 ,  H04J14/02

Abstract: Methods for configuring an optical link in which a distribution of transmission data rates and line rates are configured for a predetermined amount of optical bandwidth to maximize transmission capacity. In these methods, a controller of an optical network obtains input parameters that include a signal-to-noise ratio (SNR) for optical signals and an allocated bandwidth of the optical link, further obtains, for each line rate, a mapping of transmission data rates along a frequency spectrum of the allocated bandwidth compatible with the SNR, and generates a channel plan in which a number of traffic modes and a distribution of a plurality of channels in the allocated bandwidth are set to maximize transmission capacity. The plurality of channels is used for transmitting the signals on the optical link. The controller configures at least one optical network element in the optical network to establish the optical link based on the channel plan.

公开(公告)号：US20210344418A1

公开(公告)日：2021-11-04

申请号：US17005873

申请日：2020-08-28

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Davide Sirtori ,  Silvia Turolla

IPC: H04B10/079 ,  H04B10/2507

Abstract: Methods for configuring an optical link with an optimized spectral efficiency are provided. In these methods, a controller of an optical network obtains a baseline configuration that includes a traffic mode that uses a predetermined channel spacing of a plurality of channels in a frequency spectrum. The plurality of channels is used for transmitting optical signals on an optical link in the optical network. The controller further converts the SNR-margin to a Q-margin threshold value associated with a Q-margin as a performance parameter and while maintaining the performance parameter with a predetermined range of the Q-margin threshold value, varies at least one transmission parameter to reduce channel spacing. The controller also generates a spectral frequency map in which the channel spacing is reduced with respect to the baseline configuration and configures, via an optical network element in the optical network, the optical link based on the spectral frequency map.

公开(公告)号：US11381306B2

公开(公告)日：2022-07-05

申请号：US17005873

申请日：2020-08-28

Applicant: Cisco Technology, Inc.

Inventor： Claudio Crognale ,  Giovanni Marenco ,  Davide Sirtori ,  Silvia Turolla

IPC: H04B10/07 ,  H04J14/02 ,  H04B10/079 ,  H04B10/2507

Abstract: Methods for configuring an optical link with an optimized spectral efficiency are provided. In these methods, a controller of an optical network obtains a baseline configuration that includes a traffic mode that uses a predetermined channel spacing of a plurality of channels in a frequency spectrum. The plurality of channels is used for transmitting optical signals on an optical link in the optical network. The controller further converts the SNR-margin to a Q-margin threshold value associated with a Q-margin as a performance parameter and while maintaining the performance parameter with a predetermined range of the Q-margin threshold value, varies at least one transmission parameter to reduce channel spacing. The controller also generates a spectral frequency map in which the channel spacing is reduced with respect to the baseline configuration and configures, via an optical network element in the optical network, the optical link based on the spectral frequency map.