Optical Coax Unit LLID Mapping for PON EOC Resource Scheduling
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Solution Overview
Problem
Current PON+EOC hybrid networking lacks effective control and resource management between the optical and electrical layers within the Optical Coax Unit (OCU).
Innovation Solution
A method and system for scheduling data messages in PON and EOC networking, where the Optical Coax Unit (OCU) allocates coaxial side Logical Link Identifiers (LLIDs) for Coaxial Network Units (CNUs) and acquires optical network side LLIDs from the Optical Line Terminal (OLT), establishing a mapping relationship to schedule data messages effectively, without modifying existing MPCP or influencing the OLT.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PON and EOC hybrid networking is implemented to utilize household cables, then network coverage and service capability are improved, but resource management and control between optical and electrical layers become complex
Solution Approach 1:
The patent introduces an Optical Coax Unit (OCU) as an intermediary device that bridges the optical network (PON) and coaxial cable network (EOC). The OCU includes an optical network unit and a coaxial network unit that work together to manage resource allocation and data transmission between the two network layers, thereby simplifying the overall resource management while maintaining hybrid networking capabilities
2Productivity
If data transmission is performed between optical and coaxial layers, then network functionality is improved, but control and allocation of resources between layers is insufficient
Solution Approach 1:
The patent segments the resource management function into distinct components: the optical network unit handles optical layer resources (optical cables, optical signals), while the coaxial network unit manages coaxial layer resources (coaxial cables, electrical signals). This segmentation allows each unit to independently and reliably control its respective layer's resources while maintaining coordinated data transmission between layers
3Ease of operation
If LLID mapping is established between coaxial and optical sides, then data message scheduling is improved, but system complexity increases
Solution Approach 1:
The patent establishes a Logical Link Identifier (LLID) mapping relationship where each coaxial side LLID is associated with a corresponding optical network side LLID. This creates a virtual copy or reference system that allows data messages to be scheduled and routed through the hybrid network without requiring complex physical layer mappings, thereby simplifying the overall system architecture
Data Source
AI summary
Disclosed is method for scheduling a data message in a Passive Optical Network (PON) and Ethernet Over Cable (EOC) networking, which may include: an Optical Coax Unit (OCU) allocating a coaxial side Logical Link Identifier (LLID) for a Coaxial Network Unit (CNU) which accessed the OCU, and acquiring an optical network side LLID allocated for the OCU by an Optical Line Terminal (OLT); and establishing a mapping relationship between the coaxial side LLID and the optical network side LLID, and scheduling a data message of the CNU according to the mapping relationship. Also disclosed are a system for scheduling a data message in a PON and EOC networking and a related device. By means of the technical solution provided in the embodiments of the present disclosure, an optical network side of the OCU is effectively separated from a coaxial side thereof, the OLT in an existing PON will not be influenced, an existing Multi-Point Control Protocol (MPCP) will not be modified, and effective control and allocation for resources are implemented.