Tethered Drone Cell Site for Portable Long-Endurance Coverage
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Solution Overview
Problem
Conventional Cellular on Wheels (COW) systems are bulky, expensive, and lack portability, making them inefficient for providing reliable cellular network access in remote or rugged areas, and they often fail to maintain network access over extended periods.
Innovation Solution
A tethered drone system equipped with overrated motors and an efficient cooling system, allowing it to carry telecommunications equipment and remain airborne for weeks, providing cellular network access in hard-to-reach locations using a smaller, more portable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional Cellular on Wheels (COW) systems are used to provide mobile cell sites, then cellular network access can be provided in regions lacking coverage, but the systems become bulky and require large vehicles, limiting portability and access to rugged terrain
Solution Approach 1:
The COW system is divided into separate functional modules: a telecommunications payload module containing cell site equipment, a propulsion module with rotors and motors, and a control module. This segmentation allows the system to be transported in smaller increments and assembled at the deployment location, improving portability while maintaining full cellular network access capability
Solution Approach 2:
The system transitions from ground-based deployment to aerial deployment by using rotary-wing flight capability. This dimensional change from terrestrial to atmospheric operation enables access to rugged terrain and remote locations that are inaccessible to vehicle-based COW systems, while the modular design allows the aerial vehicle to be transported via smaller aircraft or even disassembled for manual handling
2Reliability
If conventional COW systems are deployed, then mobile cell sites can be established, but the systems remain expensive and fail to provide reliable network access over extended periods
Solution Approach 1:
The aerial vehicle is designed with multi-functionality, serving both as a platform for telecommunications and potentially for other missions such as surveillance or communication relay. The modular payload bay can accommodate different equipment configurations, allowing the same base system to be reused across multiple applications and deployments, thereby reducing overall system cost and improving reliability through extended operational capability
Solution Approach 2:
The system is designed for sustained aerial operation with features including efficient propulsion systems, extended-range fuel tanks, and thermal management systems that enable continuous network access provision over multiple days or weeks. The vehicle can maintain stable hover and flight conditions indefinitely with refueling, eliminating the need for frequent ground returns and ensuring continuous telecommunications service in remote locations
3Weight of moving object
If the drone is made smaller and lighter for portability, then it can be carried to remote locations, but it reduces the capacity to carry telecommunications equipment and operate for extended periods
Solution Approach 1:
The telecommunications payload is nested within the aerial vehicle's fuselage or payload bay, with equipment arranged in a compact, space-efficient configuration. The modular design allows the payload to be tightly integrated with the airframe, maximizing the use of internal volume while maintaining overall vehicle compactness for portability. This nesting approach enables extended operation duration by accommodating larger fuel and equipment reserves without proportionally increasing external dimensions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tethered drone system offers ultraportable, low-cost, and reliable cellular network access, capable of continuous operation for several weeks, enabling coverage in areas inaccessible to traditional COW systems.
Implementation Method 1
The cooling system of the drone body drives air into the telecommunication equipment for cooling
Implementation Method 2
The tethered drone system includes a drone that carries telecommunication equipment and is capable of remaining airborne for relatively long periods of time
Data Source
AI summary
A tethered drone system has a drone that carries telecommunication equipment, such as one or more cellular transceivers and an antenna, that enables the system to provide access to a telecommunication network for a plurality of remote communication devices in a vicinity of the drone. The drone may be disassembled to facilitate transport to a location at which additional cellular service is desired, such as a remote location or an area impacted by a catastrophic weather or geological event. At or near such location, the drone may be quickly assembled and launched. While airborne, the drone may hover for an extended period of time, such as several, hours, days, weeks, or even longer, while the telecommunication equipment carried by the drone provides access to the telecommunication network.