LAN Node Reconfiguration via Multi-Band Interconnections
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Solution Overview
Problem
Current methods for extending wireless communication coverage in local area networks by coordinating multiple access points often result in temporary connection losses during reconfiguration of the backhaul subnetwork, particularly due to the use of a single frequency band and tree topology, which introduces latency and disrupts user station connections.
Innovation Solution
A method and device that reconfigure interconnections between nodes in a local area network by establishing a second interconnection in a different frequency band, allowing for seamless transition without connection losses, using a controller node to select and establish new radio connections, and manage data pathways to avoid loops and ensure continuous service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single frequency band is used for the backhaul subnetwork, then the channel can be kept the same for all radios, but the transmission rate is limited and the network is congested
Solution Approach 1:
The patent applies parameter changes by transitioning from a single frequency band to multiple frequency bands (2.4 GHz, 5 GHz, and 6 GHz) for backhaul communication. This allows the system to change the operating parameters (frequency bands) to achieve higher transmission rates and reduced congestion while maintaining channel consistency through coordinated multi-band operation.
Solution Approach 2:
The patent implements multi-functionality by enabling radios to operate across multiple frequency bands simultaneously. Each radio can function on different bands (2.4 GHz, 5 GHz, 6 GHz) for backhaul communication, making the system universally adaptable to various transmission requirements and avoiding the limitations of a single band.
2Loss of time
If the backhaul subnetwork is reconfigured to reduce latency, then network performance improves, but user stations experience temporary connection losses
Solution Approach 1:
The patent applies preliminary action by establishing a new backhaul path through a target node before deleting the old path. The controller node selects a target node and sets up the new interconnection in advance, ensuring that user stations maintain connectivity through the new path before the old path is removed, thus preventing connection losses during reconfiguration.
Solution Approach 2:
The patent uses an intermediary approach by introducing a target node as a mediator during the reconfiguration process. The target node serves as a temporary intermediary that handles user station connections while the backhaul path is being switched from the source node to the new configuration, ensuring continuous service without interruption.
3Productivity
If multiple frequency bands are used for backhaul communication, then transmission rates increase and congestion is reduced, but the system complexity increases
Solution Approach 1:
The patent manages system complexity by systematically changing frequency band parameters across multiple bands (2.4 GHz, 5 GHz, 6 GHz). The controller node coordinates these parameter changes, assigning specific bands to different radios and backhaul paths in a structured manner that increases transmission capacity while keeping the complexity manageable through centralized control.
Solution Approach 2:
The patent applies segmentation by dividing the backhaul communication into separate frequency band segments. Each radio and backhaul path operates on specific frequency bands, segmenting the overall communication system into manageable portions that can be independently configured and controlled, thereby reducing overall system complexity despite using multiple bands.
4Device complexity
If a tree topology is used for the backhaul subnetwork, then the structure is simple, but latency is introduced in data transmission
Solution Approach 1:
The patent applies dynamics by making the backhaul topology adaptable and reconfigurable. Instead of a static tree structure, the system dynamically selects source nodes, target nodes, and intermediate nodes based on current network conditions. This dynamic reconfiguration allows the system to optimize transmission paths and reduce latency while maintaining structural simplicity through centralized control logic.
Data Source
AI summary
A method and a device for reconfiguring a first interconnection of a first node with a second node of a backhaul subnetwork in a local area network including a plurality of nodes, the first and second nodes being interconnected by a radio connection in a first frequency band. A controller node: selects a third node of the local area network, the third node being different from the first and second nodes, establishes a second interconnection between the first and third nodes by a radio connection in a second frequency band different from the first frequency band, deletes the first interconnection when the second interconnection is established.