ONU-to-ONU GEM Frame Forwarding Without Gateway Re-Encapsulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Passive Optical Network (PON) systems experience significant time delays in communication between Fiber to the Room (FTTR) Optical Network Units (ONUs) due to the need for parsing and re-encapsulating Gigabit-Capable Passive Optical Network (GPON) Encapsulation Method (GEM) frames at Ethernet and Internet Protocol (IP) layers within the master gateway.
Innovation Solution
The communication method involves encapsulating a port identification for ONU-to-ONU communication directly into a GEM frame, allowing forwarding of these frames at the PON protocol layer without parsing at the Ethernet or IP layers of the master gateway, thereby reducing time delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GEM frames are parsed and re-encapsulated at Ethernet and IP layers in the master gateway, then communication between FTTR ONUs can be routed through the gateway, but communication time delay increases significantly
Solution Approach 1:
The patent extracts the frame parsing and re-encapsulation operations from the master gateway's Ethernet and IP layers, moving them to the PON protocol layer. This allows the master gateway to forward GEM frames directly without deep packet inspection, significantly reducing processing time while maintaining routing reliability through the PON layer's inherent frame handling capabilities.
Solution Approach 2:
The patent replaces the mechanical process of Ethernet and IP layer processing with a more efficient PON protocol layer forwarding mechanism. By substituting the complex multi-layer processing with a streamlined PON layer operation, the system achieves faster frame forwarding while preserving the necessary routing and switching functions.
2Adaptability or versatility
If multi-layer processing (Ethernet and IP layers) is performed in the master gateway, then comprehensive frame control and routing is achieved, but device complexity and processing overhead increase
Solution Approach 1:
The patent extracts the essential frame control and routing functions from the complex Ethernet and IP layer processing and relocates them to the PON protocol layer. This extraction maintains the gateway's adaptability and versatility in frame handling while significantly reducing the processing complexity burden on the master gateway's hardware and software architecture.
Solution Approach 2:
The patent enhances the universality of the PON protocol layer by enabling it to perform multiple functions previously requiring separate Ethernet and IP layer processing. The PON layer now handles frame encapsulation, decapsulation, routing, and switching operations, reducing the need for complex multi-layer processing hardware and software in the master gateway.
Data Source
AI summary
The present application provides a communication method, a communication system, an electronic device, and a computer-readable medium, the communication method including: receiving an Ethernet frame sent by a first terminal; encapsulating a first port identification of the first slave gateway and the Ethernet frame into a first GEM frame, and sending the first GEM frame to a master gateway; the first port identification is a port identification for communication between optical network units.