Flexible Ethernet Network Slicing for 5G Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G network slicing technologies face inefficiencies due to complex ODUk mapping, high latency, low encapsulation efficiency for Ethernet services, and limited industry chains, particularly in supporting flexible Ethernet and achieving true physical isolation and resource isolation across layers.
Innovation Solution
Incorporating flexible Ethernet into the L1 layer for network slicing, using a flexible Ethernet group with a time slot control module and switching module to map and switch service data in 66-bit blocks, enabling efficient physical layer switching and reducing latency and jitter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ODUk mapping is used in OTN for network slicing, then physical isolation between slices is achieved, but the mapping complexity increases and scheduling becomes difficult
Solution Approach 1:
The patent introduces a packet layer as an intermediary between the OTN physical layer and service layers. This packet layer with its simplified mapping structure mediates the complex ODUk mapping requirements, enabling physical isolation while reducing scheduling complexity through standard packet switching mechanisms.
Solution Approach 2:
The patent segments the network into distinct layers: OTN physical layer for transmission, packet layer for switching and simplified mapping, and service layers for specific applications. This segmentation allows each layer to handle its specific functions independently, reducing overall system complexity.
2Reliability
If OTN transmission node processes data in ODUk units, then physical layer switching is achieved, but transmission latency increases
Solution Approach 1:
The patent performs mapping and switching operations in advance at the packet layer before data reaches the OTN physical layer. By pre-establishing mapping relationships and performing switching at the packet layer, the system avoids real-time complex ODUk mapping operations, thereby reducing transmission latency.
3Adaptability or versatility
If Ethernet service is carried over OTN with traditional encapsulation, then service transmission is achieved, but encapsulation efficiency decreases
Solution Approach 1:
The patent changes the encapsulation parameters by introducing a packet layer with optimized frame structures and mapping mechanisms. This allows Ethernet services to be transmitted over OTN with improved encapsulation efficiency through better utilization of available bandwidth and reduced overhead.
4Reliability
If multi-layer mapping is implemented for network slicing, then service isolation is achieved, but system efficiency decreases
Solution Approach 1:
The patent extracts the complex multi-layer mapping functions into a dedicated packet layer, separating them from the OTN physical layer operations. This extraction allows the OTN layer to focus on efficient physical transmission while the packet layer handles mapping and isolation, improving overall system efficiency.
Data Source
AI summary
A transmission network system, data switching and transmission method, apparatus and equipment are provided. The transmission network system includes: a flexible Ethernet group located at a physical layer; at least one flexible Ethernet client carried over the flexible Ethernet group; a flexible Ethernet time slot control module, configured to map, according to a block sequence, service data coming from an upper layer onto the flexible Ethernet group, and recover, from a block sequence received by the flexible Ethernet group, corresponding service data; a flexible Ethernet switching module, configured to perform switching in a physical layer and transmission of service data according to the block sequence.