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US 11,705,962 B2Granted
Maritime communication system based on low earth orbit satellite and unmanned aerial vehicle
AssigneeUniversity-Industry Cooperation Group of Kyung Hee University
InventorsChoong Seon Hong, Hassansheikh Salman, Seok Won Kang
Life of this patent
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Abstract
The present disclosure relates to a maritime communication system based on low earth orbit satellites and an unmanned aerial vehicle. The maritime communication system according to one embodiment may include one or more maritime users, one or more satellites connected to a network operator, and an unmanned aerial vehicle (UAV) for relaying communication between the maritime users and the satellites.
Claims10
A maritime communication system, comprising:
- one or more maritime users;
- one or more satellites connected to a network operator;
- and
- an unmanned aerial vehicle (UAV) for relaying communication between the maritime users and the satellites,
- wherein the unmanned aerial vehicle controls utility of the network based on a free-space path loss value (PLFS) between each of the one or more maritime users and the unmanned aerial vehicle (UAV) constituting a network and a gain value (gi) of a sub-carrier corresponding to a free-space path loss value (PL) of each of the one or more maritime users,
- wherein when a power of an equipped battery of the unmanned aerial vehicle is less than or equal to a preset threshold, the unmanned aerial vehicle transmits a wireless charging request signal to the network operator,
- wherein the network operator adjusts positions of unmanned aerial vehicles located within a preset distance from the unmanned aerial vehicle that transmitted the wireless charging request signal, and
- wherein when charging of the unmanned aerial vehicle that transmitted the wireless charging request signal is completed, the network operator re-adjusts the positions of the charged unmanned aerial vehicle and the unmanned aerial vehicles located within the preset distance from the charged unmanned aerial vehicle.
5 more elements
An unmanned aerial vehicle of a maritime communication system, the unmanned aerial vehicle comprising:
- a user connector for connecting one or more maritime users and a network;
- a satellite connector for connecting one or more satellites and the network;
- and
- a communication controller for relaying communication between the maritime users and the satellites and monitoring the status of the relayed communication,
- wherein the unmanned aerial vehicle controls utility of the network based on a free-space path loss value (PLFS) between each of the one or more maritime users and the unmanned aerial vehicle constituting a network and a gain value (gi) of a sub-carrier corresponding to a free-space path loss value (PL) of each of the one or more maritime users,
- wherein when a power of an equipped battery of the unmanned aerial vehicle is less than or equal to a preset threshold, the unmanned aerial vehicle transmits a wireless charging request signal to a network operator,
- wherein the network operator adjusts positions of unmanned aerial vehicles located within a preset distance from the unmanned aerial vehicle that transmitted the wireless charging request signal, and
- wherein when charging of the unmanned aerial vehicle that transmitted the wireless charging request signal is completed, the network operator re-adjusts the positions of the charged unmanned aerial vehicle and the unmanned aerial vehicles located within the preset distance from the charged unmanned aerial vehicle.
5 more elements
Dependencies are inferred from the claim text.