Optical Transceiver Firmware Update via Auxiliary Channel
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Solution Overview
Problem
Updating firmware in optical transceivers located remotely from the central office is cumbersome and time-consuming, requiring manual administrator visits.
Innovation Solution
An optical communication system that automatically updates firmware in remote optical transceivers using a server-managed process, where firmware update data is transmitted through an auxiliary management control channel without affecting payload data transmission, allowing the optical transceivers to update their firmware independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual administrator visits are used to update firmware in remote optical transceivers, then firmware updates can be performed, but it becomes cumbersome and time-consuming
Solution Approach 1:
The optical transceiver performs firmware updates autonomously without requiring administrator visits. The system automatically receives firmware images through the existing optical communication link and installs them without manual intervention, enabling self-service maintenance.
Solution Approach 2:
The OLT stores firmware images in advance and prepares update packages before they are needed. The system proactively manages firmware updates by pre-positioning update files and automatically initiating the update process when conditions are met, eliminating the need for reactive manual visits.
2Extent of automation
If firmware updates are performed through existing optical communication channels, then automatic updates are enabled, but payload data transmission may be affected
Solution Approach 1:
The optical communication channel is divided into separate logical paths: one for payload data transmission and another for firmware update data. This segmentation allows firmware updates to occur without interfering with ongoing payload data communication, maintaining transmission reliability during the update process.
Solution Approach 2:
The system uses an intermediary mechanism that separates firmware update traffic from payload data traffic. The OLT acts as an intermediary that routes firmware images through dedicated pathways, ensuring that the firmware update process does not disrupt normal data transmission operations.
Data Source
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AI summary
Provided is an optical transceiver including: a controller configured to output firmware update data for updating firmware of another optical transceiver connected to the optical transceiver through an optical cable; and a transmitter configured to generate an optical signal by superposing input payload data and the firmware update data, and to transmit the optical signal to the other optical transceiver. According to embodiments, the firmware of a remote optical transceiver at a remote location is automatically updated without affecting payload data, which is information to be transmitted.