Wireless Backhaul Topology Optimization with AI and Heuristic Shortcuts
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Solution Overview
Problem
The challenge in designing wireless backhaul networks is determining optimal network topologies that balance throughput, latency, and power consumption, as the number of possible configurations grows super-exponentially, making exhaustive evaluation computationally infeasible, and existing methods often lead to sub-optimal or static solutions that fail to adapt to dynamic conditions.
Innovation Solution
A method involving a non-analytical shortcut process using AI models and heuristic algorithms to generate a subset of candidate topologies based on load type and link quality information, allowing for adaptive reconfiguration to optimize network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If exhaustive evaluation of all possible network topologies is performed, then the globally optimal topology can be found, but the computational complexity becomes intractable due to combinatorial explosion
Solution Approach 1:
The patent segments the exhaustive topology evaluation process into multiple phases: (1) generating an initial feasible topology using analytical methods, (2) identifying critical links and nodes that have disproportionate impact on performance, (3) performing detailed optimization only on these critical segments, and (4) propagating changes to the full network. This segmentation reduces computational complexity from evaluating all possible topologies to evaluating only relevant subsets.
Solution Approach 2:
The patent applies partial action by performing exhaustive evaluation only on a carefully selected subset of candidate topologies rather than all possible topologies. The method generates a limited set of promising candidates using analytical shortcuts and heuristics, then applies rigorous evaluation only to these partial candidates, achieving near-optimal results with tractable computational effort.
2Device complexity
If traditional analytical methods are used for topology optimization, then computational tractability is maintained, but the solutions obtained are sub-optimal and fail to capture complex wireless environment dynamics
Solution Approach 1:
The patent performs preliminary analytical evaluation to generate an initial feasible topology and identify critical components before applying more sophisticated optimization. This preliminary action filters out obviously poor configurations and focuses subsequent computational resources on promising candidates, bridging the gap between analytical tractability and optimization quality.
Solution Approach 2:
The patent introduces intermediary heuristics and analytical shortcuts that act as mediators between simple analytical methods and exhaustive search. These intermediaries generate refined candidate topologies that incorporate wireless environment dynamics without requiring full exhaustive evaluation, achieving better accuracy than traditional methods while maintaining computational tractability.
3Ease of manufacture
If static topology determination is performed during network setup, then initial network configuration is established, but the topology cannot adapt to changing network conditions over time
Solution Approach 1:
The patent transforms the static topology determination process into a dynamic adaptation mechanism. The system continuously monitors network conditions (traffic patterns, link quality, node failures) and periodically re-evaluates and reconfigures the topology using the same analytical and optimization methods employed during initial setup. This enables the network to adapt to changing conditions while maintaining the simplicity of the original configuration approach.
Solution Approach 2:
The patent implements feedback loops where network performance metrics are continuously measured and fed back to the topology optimization process. This feedback mechanism triggers reconfiguration when performance degradation is detected, enabling the static topology to adapt dynamically to changing conditions while maintaining the simplicity of the original setup methodology.
4Productivity
If the number of network nodes is increased to provide greater coverage and capacity, then network utility is improved, but the number of possible topologies grows super-exponentially making optimization infeasible
Solution Approach 1:
The patent segments the large-scale network into smaller clusters or zones, applying topology optimization independently to each segment. This segmentation reduces the combinatorial explosion from considering all N nodes together to considering smaller subsets, making optimization feasible for large networks while maintaining overall network capacity and coverage.
Solution Approach 2:
The patent applies partial evaluation by focusing computational resources on critical subgraphs and high-impact link configurations rather than evaluating all possible topologies for the entire large network. This selective approach enables optimization of capacity-critical portions of the network without being overwhelmed by the super-exponential growth of total configuration space.
Data Source
AI summary
Methods and systems for optimizing topology of a wireless backhaul communication network are disclosed. The network comprises a plurality of nodes. Each node reports load type information, indicative of data generation requirements of connected devices, and link quality information, indicative of communication link quality with neighboring nodes, to a controller. Due to the large number of possible network topologies, which precludes exhaustive evaluation, a non-analytical shortcut process is used to generate a subset of candidate network topologies. This process identifies candidate topologies based on the received load type and link quality information. The network is configured according to a selected topology from the subset, and its actual performance is measured. If performance is unsatisfactory, the network is reconfigured using another topology from the subset. The non-analytical shortcut process may utilize an AI model, a heuristic algorithm, or a combination thereof. A method of training such AI model is also presented.


