MSA-Compliant Optical Transceivers with Integrated FEC and OAM&P

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Solution Overview

Problem

Current optical transceivers, compliant with multi-source agreements (MSAs), lack integrated framing, forward error correction (FEC), and optical layer operations, administration, maintenance, and provisioning (OAM&P) functions, which are essential for advanced network applications, while maintaining compatibility with existing host systems.

Innovation Solution

Incorporating circuitry within optical transceivers to provide integrated framing, FEC, and OAM&P functions, such as G.709 framing and Reed-Solomon FEC, while preserving the mechanical, electrical, and optical characteristics defined by MSAs, allowing these advanced functions to operate transparently within MSA-compliant host devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If MSA specifications tightly define mechanical, electrical, and optical characteristics to maximize density and minimize cost, then interoperability and manufacturing efficiency are improved, but advanced optical performance and integrated functions are limited

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidadvanced optical performance
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple previously separate functions (framing, FEC, OAM&P) into the optical transceiver module itself, merging the capabilities of the optical layer and higher layers into a single integrated device that maintains MSA compliance while delivering carrier-grade performance

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The optical transceiver is designed to perform multiple functions simultaneously - basic optical transmission according to MSA specifications plus advanced functions like framing, FEC, and OAM&P - making it universally applicable from short interconnects to metro and core networks

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If additional equipment is added to provide framing, FEC, and OAM&P functions, then carrier-grade performance is achieved, but device complexity and cost increase

Engineering Contradiction:
Improvecarrier-grade performanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges framing, FEC, and OAM&P functions directly into the optical transceiver, eliminating the need for separate external equipment and reducing overall system complexity while achieving carrier-grade reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Advanced functions are nested within the optical transceiver structure, with framing, FEC, and OAM&P capabilities integrated inside the MSA-compliant transceiver housing, allowing compact deployment without additional external components

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If optical transceivers are used for short interconnects only, then MSA compliance is maintained, but application scope is limited

Engineering Contradiction:
Improveapplication scopeVSAvoidcarrier-grade performance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The enhanced optical transceiver achieves universal applicability across different network segments by integrating carrier-grade functions (framing, FEC, OAM&P) while maintaining MSA compliance, enabling use from short interconnects through metro and core networks

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8929744B240G/100G MSA-compliant optical transceivers with advanced functionality
Publication Date: 2015.01.06 WELLS FARGO BANK NA
  • US8929744B2 patent drawing
  • US8929744B2 patent drawing
  • US8929744B2 patent drawing

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. An optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the optical transceiver to operate with any compliant MSA host device with advanced features and functionality. The optical transceiver can include CFP and variants thereof (e.g., CFP2, CDFP, CXP), OIF-MSA-100GLH-EM-01.0, CCRx (Compact Coherent Receiver), Quad Small Form-factor Pluggable (QSFP) and variants thereof (e.g., QSFP+, QSFP2), 10×10 MSA, XFP, XPAK, XENPAK, X2, XFP-E, SFP, SFP+, 300-pin, and the like.