Dynamic Wireless Backhaul Path Selection for Signal Quality
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Solution Overview
Problem
Conventional wireless backhaul networks face performance degradation due to changing radio environments caused by interference, noise, and obstructions, as the wireless backhaul path is fixed and not dynamically adaptable.
Innovation Solution
A wireless backhaul network architecture that includes a root node, a bridge node, and a controller node, with control circuits that dynamically select and switch between different subsets of access points to form and replace wireless backhaul paths based on signal quality and environmental changes, ensuring optimal communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless backhaul path is fixed after establishment, then the network structure is simple and stable, but the signal quality and throughput deteriorate when radio environment changes
Solution Approach 1:
The patent implements dynamic backhaul path configuration where the controller node periodically selects different subsets of access points as backhaul nodes based on current radio conditions. The system transitions from a static fixed path to a dynamic adaptive path that changes over time to maintain optimal signal quality and throughput.
Solution Approach 2:
The controller node monitors radio environment changes and uses this feedback information to dynamically adjust the backhaul path configuration. The system continuously evaluates signal quality metrics and reconfigures the backhaul path in response to environmental changes, ensuring maintained performance.
2Productivity
If the wireless backhaul path remains fixed, then the configuration is simple, but performance degrades due to interference, noise, and shielding effects
Solution Approach 1:
The system dynamically adjusts the backhaul path by periodically selecting different subsets of access points based on current radio conditions. This dynamic reconfiguration allows the network to adapt to changing environmental factors such as interference, noise, and shielding effects, thereby maintaining high throughput performance.
Solution Approach 2:
The controller node changes the configuration parameters of the backhaul path by selecting different access points as backhaul nodes based on measured radio conditions. This parameter change enables the system to optimize throughput by adapting to varying environmental conditions.
3Reliability
If dynamic path selection is implemented, then signal quality and throughput are maintained, but the control complexity increases
Solution Approach 1:
The patent consolidates the control functionality for dynamic backhaul path selection into a single controller node that manages multiple access points. This merging of control functions centralizes the complexity, allowing individual access points to operate with simpler local control circuits while the controller node handles the sophisticated dynamic path selection algorithm.
Data Source
AI summary
A wireless backhaul network for bridging a neighboring network and a network device includes: a plurality of access points; a root node utilized for communicating with the neighboring network and at least a portion of the access points; a bridge node utilized for communicating with the network device and at least a portion of the access points; and a controller node utilized for communicating with the root node, the bridge node, and at least a portion of the access points. The controller node selects a first subset of the access points as backhaul nodes to form a first wireless backhaul path in a first period, and dynamically selects a different second subset of the access points as new backhaul nodes to form a second wireless backhaul path in a second period, so as to replace the first wireless backhaul path.