Mesh Network Channel Switching via Hierarchical Node Propagation
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Solution Overview
Problem
In wireless mesh networks, channel switching efficiency is reduced due to network congestion and interference, leading to many node devices not receiving channel switching information, which disrupts the connectivity and efficiency of the network.
Innovation Solution
Each node device in the mesh network obtains and forwards network channel switching information from an upper-level parent node, ensuring that lower-level child nodes receive the information and switch channels accordingly, thereby improving the success rate of channel switching across the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the root node device broadcasts channel switching information to all node devices, then the channel switching information can be transmitted to the entire mesh network, but network congestion and interference cause many node devices to fail to receive the information
Solution Approach 1:
The patent segments the mesh network into a hierarchical structure with root node devices, intermediate node devices, and terminal node devices. Channel switching information is propagated in a downward manner through this hierarchy, dividing the single broadcast action into multiple targeted transmissions. This segmentation allows intermediate nodes to receive and forward information, ensuring reliable delivery while reducing the impact of network congestion on any single transmission.
Solution Approach 2:
The patent introduces intermediate node devices as mediators in the channel switching process. These intermediate nodes receive channel switching information from root nodes and forward it to terminal nodes. This intermediary mechanism ensures that information reaches all nodes reliably, as each intermediate node acts as a local broadcaster, reducing the dependency on a single root-to-all broadcast and mitigating the effects of network congestion and interference.
2Productivity
If channel switching information is transmitted through broadcast to all node devices, then the entire network can be notified, but the efficiency of channel switching is reduced due to information loss
Solution Approach 1:
The patent implements preliminary action by having intermediate node devices pre-position themselves to receive and forward channel switching information before the actual channel switching occurs. This ensures that all terminal nodes have the necessary information in advance, preventing information loss and ensuring that the entire network can switch channels simultaneously and efficiently without waiting for potentially lost broadcast transmissions.
3Reliability
If the root node device performs channel switching based on reliable processing with the router, then the connection between the root node and router is maintained, but other node devices may not receive the switching information due to network conditions
Solution Approach 1:
The patent segments the information propagation task across multiple nodes in the hierarchy. While the root node maintains reliable processing with the router, intermediate nodes independently receive and forward the switching information to terminal nodes. This segmentation ensures that even if some transmissions in the network are lost due to congestion, the hierarchical structure provides multiple paths for information delivery, maintaining overall reliability while preventing information loss at the network edge.
Solution Approach 2:
The patent uses intermediate node devices as intermediaries to bridge the gap between the root node's reliable processing and the terminal nodes' information reception. These intermediaries ensure that channel switching information is reliably delivered to all parts of the network, compensating for potential information loss in direct broadcasts from the root node to distant terminal nodes.
Data Source
AI summary
Embodiments of the present invention disclose a network channel switching method and apparatus, a device, and a storage medium. The method comprises: acquiring network channel switching information sent by an upper-level parent-node device having a connection relationship, and sending the network channel switching information to a lower-level child-node device having a connection relationship; and switching, according to the received network channel switching information, from a current channel to a target channel. The technical solution in the embodiments of the present invention can greatly improve the success rate of each node device receiving network channel switching information in a mesh network, such that channel switching across the entire mesh network can be achieved while maintaining connections between the node devices in the network, thereby improving the efficiency of channel switching in the mesh network.