PLOAM Message Transmission Over Ethernet

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Solution Overview

Problem

Conventional optical network systems require CPUs in optical network units (ONUs) to process PLOAM messages, occupying space and increasing power consumption, design time, and costs.

Innovation Solution

Transmitting PLOAM messages over an Ethernet network, where the first terminal sends the message to a second terminal, which extracts and encodes it into an Ethernet-compatible format, then sends it to an external CPU for processing, eliminating the need for CPUs in the ONU.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CPU is included in ONU to process PLOAM message, then PLOAM message processing capability is improved, but device complexity and die area are increased

Engineering Contradiction:

ImprovePLOAM message processing capabilityVSAvoidONU structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the PLOAM message processing function from the ONU by establishing an Ethernet connection to an external CPU. The ONU receives PLOAM messages through its Ethernet interface and forwards them to the external CPU for processing, eliminating the need for an internal CPU in the ONU device.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces Ethernet protocol as an intermediary mechanism to bridge the ONU and the external CPU. The PLOAM messages are transmitted through the Ethernet interface, allowing external processing while maintaining the ONU's simplified structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If CPU is included in ONU to process PLOAM message, then PLOAM message processing capability is improved, but power consumption is increased

Engineering Contradiction:

ImprovePLOAM message processing capabilityVSAvoidONU power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the power-consuming CPU processing function from the ONU to an external device. By removing the CPU from the ONU, the patent significantly reduces the power consumption of the ONU while maintaining PLOAM message processing capability through the external CPU connected via Ethernet.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If CPU is included in ONU to process PLOAM message, then PLOAM message processing capability is improved, but manufacturing cost is increased

Engineering Contradiction:

ImprovePLOAM message processing capabilityVSAvoidONU manufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent extracts the expensive CPU component from the ONU, thereby reducing manufacturing costs. The ONU can be manufactured as a simpler device without an internal CPU, while still providing PLOAM message processing capability through the external CPU connection via Ethernet interface.

Inventive Principle:

Principle #2Taking out (Extraction)

4Reliability

If CPU is included in ONU to process PLOAM message, then PLOAM message processing capability is improved, but die area is increased

Engineering Contradiction:

ImprovePLOAM message processing capabilityVSAvoidONU die area

Core Design Contradiction:

ReliabilityVSArea of moving object

Solution Approach 1:

The patent extracts the CPU function from the ONU chip, thereby reducing the die area required for the ONU. By implementing PLOAM message processing externally through Ethernet connection, the ONU can have a much smaller chip area while maintaining full processing capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11178004B2Method for transmitting physical layer operation administration and maintenance message over ethernet and system thereof

Publication Date: 2021.11.16 QUALCOMM INC

AI summary

The disclosure provides a method for transmitting a physical layer operation administration and maintenance (PLOAM) message over an Ethernet network. The method includes the steps of: transmitting, from a first terminal, the PLOAM message to a second terminal over a PLOAM channel connecting the first and second terminals; extracting, by the second terminal, the PLOAM message; sending, from the second terminal, the extracted PLOAM message to an external CPU over an Ethernet protocol; and processing, by the external CPU, the received PLOAM message to generate a processed PLOAM message.