Dynamic physical layer collision avoidance systems, methods, and apparatus
The DPLCA system, which dynamically allocates node IDs, solves the problems of plug-and-play and conflict avoidance in existing Ethernet mechanisms in multi-branch networks, and realizes plug-and-play and efficient bandwidth utilization multi-branch Ethernet communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MARVELL ASIA PTE LTD
- Filing Date
- 2025-12-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Ethernet mechanisms are not suitable for plug-and-play multi-branch networks, especially for industrial automation communication over a single twisted-pair cable. There are limitations to hot insertion and hot removal of nodes, which prevents the network from being plug-and-play. Furthermore, existing collision avoidance mechanisms such as CSMA-CD and TDM have issues with bandwidth utilization and scalability.
The Dynamic Physical Layer Collision Avoidance (DPLCA) system is adopted to achieve dynamic configuration of multi-branch Ethernet networks by dynamically allocating node IDs. It allows nodes to be dynamically added or deleted within a communication cycle. The IEEE 802.3da protocol is used to limit the repetition time period and transmission opportunity window. Nodes switch between disabled, waiting for beacons and coordinator states, dynamically select unique node identifiers and monitor for collisions to avoid them.
It enables plug-and-play capability for multi-branch Ethernet networks, improves bandwidth utilization, reduces the possibility of beacon collisions, improves system efficiency and data throughput, and supports dynamic network node configuration.
Smart Images
Figure CN122420110A_ABST