Infinera has filed a patent for an optical network and method that involves a reconfigurable optical add-drop multiplexer (ROADM). The method includes receiving a request from an upstream ROADM, sending a distributed request to MUX modules, attempting to perform an operation, and sending a consolidated response. The claim focuses on storing data indicative of the current status of the ROADM, receiving a status message from MUX modules, determining if the changed status is less available, and updating the current status accordingly. GlobalData’s report on Infinera gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Infinera, data center optical networking was a key innovation area identified from patents. Infinera's grant share as of September 2023 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Method for managing status of optical add-drop multiplexer
A recently filed patent (Publication Number: US20230308205A1) describes a method for managing the status of a reconfigurable optical add-drop multiplexer (ROADM) in an optical network. The method involves a de-multiplexer (DEMUX) module storing data indicating the current status of the ROADM. When a status message indicating a change in status is received from one of the multiplexer (MUX) modules, the DEMUX module determines if the changed status is less available than the current status. If so, the DEMUX module updates the current status to reflect the change.
In addition to managing the status of the ROADM, the method also includes communication between the local ROADM and an upstream ROADM in the optical network. After updating the current status, the DEMUX module sends a consolidated status message to the upstream ROADM, providing information about the current status of the local ROADM.
The patent also describes a method for performing operations on the local ROADM in response to a request from the upstream ROADM. The DEMUX module receives the request and sends a distributed request to the MUX modules. The MUX modules attempt to perform the operation specified in the request. Once the MUX modules have completed the operation, a consolidated response is sent back to the upstream ROADM, indicating whether the operation was successful or not.
The method includes a response consolidation timer, which starts after sending the distributed request and expires after a predetermined time period. If the timer expires before receiving the distributed responses from the MUX modules, a consolidated response indicating a failure of the operation is sent to the upstream ROADM.
In certain scenarios, if the operation is a reservation of the local ROADM, the DEMUX module may send an enable-adjust request to a specific MUX module that successfully performed the operation. This enable-adjust request instructs the MUX module to release the reservation, allowing it to load an optical service on the fiber optic line and adjust its configuration.
Overall, this patent describes methods for managing the status of a reconfigurable optical add-drop multiplexer and performing operations on a local ROADM in an optical network. These methods aim to improve the efficiency and reliability of optical network operations.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
