Airborne Cellular Base Station for On-Demand Remote Coverage
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Solution Overview
Problem
Providing cost-effective cellular telephony coverage in remote areas is challenging due to high costs and environmental concerns associated with terrestrial base stations, and existing temporary solutions like airborne base stations are not practical for permanent use or initial emergency communications.
Innovation Solution
An airborne base station system that uses an aircraft equipped with communications equipment, tethered to a ground station for power and backhaul connection, which is launched only when needed, offering wider coverage and reducing costs by minimizing the need for terrestrial infrastructure and allowing for controlled flight to adjust coverage area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terrestrial base stations are deployed in remote areas, then cellular coverage is provided, but cost and environmental impact increase significantly
Solution Approach 1:
The patent moves the base station from ground level to airborne position (balloon, drone, or aircraft), transitioning from two-dimensional ground-based coverage to three-dimensional aerial coverage. This dimensional change allows a single base station to cover a much larger geographic area without requiring multiple terrestrial stations, thereby reducing infrastructure complexity while maintaining or improving coverage reliability in remote regions.
2Area of stationary object
If airborne base stations are deployed permanently, then wide coverage area is achieved, but operational cost increases
Solution Approach 1:
The system dynamically adjusts the deployment state of airborne base stations based on real-time demand. Instead of permanent deployment, base stations are launched only when coverage is needed (such as during emergencies or high-traffic periods) and can be recalled or deactivated when not required. This dynamic approach allows the system to achieve wide coverage area when necessary while minimizing operational costs by keeping base stations grounded during low-demand periods.
3Device complexity
If base stations are spaced far apart in remote areas, then cost is reduced, but coverage gaps increase
Solution Approach 1:
By elevating base stations to airborne positions, the system achieves superior coverage continuity with fewer stations. The elevated position eliminates terrain obstructions and extends the radio horizon, allowing signals to travel farther and cover larger areas without interruption. This dimensional advantage enables sparse deployment of base stations while maintaining continuous coverage across remote regions, resolving the contradiction between reducing the number of stations and ensuring coverage continuity.
Data Source
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AI summary
A communications base station is mounted on an aircraft (100) such as a drone or a tethered balloon to provide wireless coverage over a remote area. The use of an airborne device allows a much wider coverage area to be served by one base station, and therefore one backhaul connection, than would be possible by ground based antennas. The invention achieves power and maintenance savings the aircraft is launched (1) only when activity is detected on the ground in the area of coverage (20), and returns to a ground station (3) when such activity ceases. Activity may be detected for example by sensors (16, 17) on a highway identifying vehicles approaching the coverage area. In an alternative arrangement, launch may be triggered by a handover signal received from a cellular base station (13) operating in a region neighbouring the coverage area, or by detection by the network (19) of an incoming call to a mobile terminal previously recorded as being in the area of coverage. Backhaul connection to the wider network is provided from the ground station (3), which is in communication with the aircraft.