An optimal wireless backhaul network design device and method for reducing capital and operating expenditures for mobile carriers.

Apparatus for Selecting Macrocell Locations for Millimeter-Wave Backhaul Based on Small Cell Cluster Connectivity Probability

This technology is a wireless backhaul network design device that determines the optimal placement of macrocell base stations in coverage-deficient areas. It selects M candidate locations from areas beyond a certain distance from small cell base stations, models small cell clusters as circles to calculate wireless connectivity probability for each candidate, and selects a construction site from those exceeding a threshold probability.

Next-generation mobile communications, such as 5G, require dense deployment of small cells for multi-Gbps transmission, which significantly increases capital and operating expenditures for wired backhaul. Even with millimeter-wave beamforming wireless backhaul, improper macrocell placement can lead to interference with small cells.

This technology calculates connectivity probability by incorporating cluster center locations, maximum radii, base station density, and obstacle density probabilities per map zone. If multiple candidates meet the criteria, it selects the one closest to the center of the candidate area. It can be applied to 5G network design and coverage expansion in remote areas, enabling universal communication services with minimal infrastructure investment.

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Key Features:

• An information storage unit that stores the number and location data of small cell base stations included in each of the N small cell base station clusters
• A candidate location selection unit that divides candidate areas located at least a preset distance from small cell base stations into a grid and selects the centers of sub-areas as M candidate locations
• A calculation unit that models clusters based on center location, maximum radius, and density—calculated by dividing the number of stations by the circular area—and computes wireless connectivity probability by reflecting obstacle density probability
• A construction site determination unit that selects the location closest to the center of the candidate area among those exceeding the threshold connectivity probability as the macrocell base station construction site

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