Hybrid PLC-RF Data Interlacing for Robust Powerline Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The G3-PLC Hybrid PLC & RF standard lacks flexibility and robustness in choosing communication media between hybrid nodes, leading to suboptimal performance in electrical supply networks.
Innovation Solution
A transmission method that distributes data into two groups, interlaced with powerline and radio frequency communication media, using Reed-Solomon encoding and bit permutation to enhance error robustness and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the communication medium choice is fixed at route construction time in G3-PLC Hybrid PLC & RF, then the routing is simplified, but the adaptability and robustness to errors are reduced
Solution Approach 1:
The patent implements dynamic medium selection by enabling hybrid nodes to switch between PLC and RF communication media based on real-time channel conditions. The fixed routing structure is maintained while the transmission medium becomes dynamic, allowing adaptation to changing network conditions without reconfiguring routes.
Solution Approach 2:
The patent changes the operational parameters of hybrid nodes by enabling them to transmit and receive data on both PLC and RF media simultaneously. This parameter change allows the same node to operate on multiple communication media, improving adaptability while maintaining the existing routing infrastructure.
2Device complexity
If data is transmitted on a single communication medium, then the transmission process is simplified, but the robustness to errors and resilience are reduced
Solution Approach 1:
The patent segments data transmission by dividing the data stream into multiple portions that are transmitted over different communication media (PLC and RF). This segmentation allows the system to exploit the diversity of communication channels, improving error robustness since failures on one medium do not necessarily affect data transmitted on the other medium.
Solution Approach 2:
The patent creates a composite communication system by combining PLC and RF transmission media. Similar to how composite materials combine different materials to achieve superior properties, this composite communication approach combines the strengths of both PLC (good for indoor power network coverage) and RF (good for outdoor and penetrating capabilities) to achieve improved overall reliability and error robustness.
3Reliability
If hybrid nodes use both PLC and RF media, then the coverage and resilience are maximized, but the flexibility to adapt to changing conditions is limited by fixed medium choice
Solution Approach 1:
The patent makes the communication medium selection dynamic by enabling hybrid nodes to adaptively choose between PLC and RF media based on real-time channel conditions, data priority, and network state. This dynamic approach maintains the resilience benefits of multi-medium capability while adding the flexibility to optimize performance under varying conditions.
Data Source
AI summary
A transmission method makes it possible to transmit data from a first node device to a second node device belonging to a network neighbourhood of the first node device, the first and second node devices belonging to an electrical supply network. These nodes are configured for transmitting the data by powerline and by radio frequency. The method comprises the following steps performed by the first node device: distributing the data in two groups of data by an operation of interlacing the data, each group being associated with a communication medium from powerline and radio frequency, and transmitting each data item to a MAC layer of the communication medium associated with the group to which the data item belongs.