MSA Pluggable Optical Transceivers With On-Module Framing and FEC
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Solution Overview
Problem
Current optical transceivers, compliant with multi-source agreements (MSAs), lack integrated framing and forward error correction (FEC) capabilities, which limits their performance and requires external equipment for advanced functions like optical layer operations, administration, maintenance, and provisioning (OAM&P), while maintaining mechanical, electrical, and optical specifications to ensure interoperability.
Innovation Solution
Incorporating circuitry within the optical transceivers to provide framing and forward error correction (FEC) functions, allowing for transparent operation and enabling advanced functionalities such as performance monitoring, OAM&P, and alarming, while preserving compatibility with existing host systems through MSA compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If MSA specifications are tightly defined to maximize density and minimize cost, then manufacturing cost and device density are improved, but optical performance and integrated functionality are limited
Solution Approach 1:
The patent merges previously separate functions (framing, FEC, OAM&P) into the optical transceiver module itself. The circuitry is integrated within the transceiver housing, allowing these advanced functions to be performed locally without requiring external equipment, thus improving optical performance while maintaining MSA compliance for cost-effective manufacturing
Solution Approach 2:
The optical transceiver is designed with multi-functionality by incorporating circuitry that can perform framing, forward error correction, and OAM&P functions. This universal design allows a single transceiver module to handle multiple tasks that traditionally required separate devices, enhancing performance without proportionally increasing cost
2Ease of operation
If MSA-compliant optical transceivers are standardized for interoperability, then ease of operation and vendor compatibility are improved, but advanced functionality and performance are limited
Solution Approach 1:
The patent segments the optical transceiver into distinct functional components: optical section, electrical section, and circuitry section. This segmentation allows the transceiver to maintain standardized interfaces for interoperability while incorporating advanced functions in separate integrated circuits that can be independently developed and upgraded
Solution Approach 2:
The patent introduces an intermediary circuitry layer between the standardized MSA interfaces and the advanced functional requirements. This circuitry acts as a mediator that translates between standard interfaces and advanced functions, enabling both interoperability and enhanced capability
3Device complexity
If external equipment is used for framing and FEC functions, then device complexity is reduced, but system cost and device count increase
Solution Approach 1:
The patent combines multiple previously separate functions (framing, FEC, OAM&P) into a single integrated circuitry module within the transceiver. This consolidation reduces the total number of equipment pieces in the system while the modular integrated design keeps the transceiver structure manageable and maintainable
Data Source
AI summary
Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, and the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. A pluggable optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the pluggable optical transceiver to operate with any compliant MSA host device with advanced features and functionality, such as Forward Error Correction (FEC), framing, and OAM&P directly on the pluggable optical transceiver. The advanced integrated can be implemented by the pluggable optical transceiver separate and independent from the host device.