Wireless Data Transmission for Drone Operations

Unmanned aerial vehicle (UAV) cluster data transmission system using the LoRa protocol for long range, low power wireless communication between UAVs and ground stations. The system allows multiple UAVs to transmit and relay data over long distances using LoRa modulation. It enables UAV swarms to have extended range and reliability for applications like agriculture, surveillance, and logistics.

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Collaborative networking method for unmanned aerial vehicles (UAVs) to improve reliability and accuracy of UAV signal transmission and safety in the field. The method involves dynamically adjusting the transmission nodes for UAV data based on real-time UAV location and signal strength. It determines transmission parameters between UAVs and targets during flight, selects transmission nodes, transmits data through those nodes, monitors real-time UAV info, checks if nodes meet conditions, and if not, updates nodes. This allows dynamic node selection, prevents UAV issues due to node selection, improves data transmission efficiency, and ensures node selection adapts to UAV flight conditions.

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Method for reliable and high-speed wireless real-time data transmission that avoids interruptions and drops in areas with blind spots. The method uses multiple antennas at predetermined angles and heights to ensure complete coverage of a designated area without blind spots. FPGA-based forward error correction, verification, and selection of the best channel with lowest error rate from multiple channels received by the antennas is used to achieve reliable transmission of high-speed wireless data.

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A method and system for enabling long range unmanned aerial vehicle (UAV) communication beyond line-of-sight by combining point-to-point microwave links with network transmission. The UAV communicates directly with a ground microwave station using a microwave link. The ground station connects to networking equipment and a server via a local network or the internet. This allows the UAV to be remotely controlled and monitored over long distances by accessing it through the server over the network. It mitigates the issue of signal interruption due to obstructions by leveraging the network to extend the UAV's range.

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Safe communication method between a user and a power inspection unmanned aerial vehicle that enables secure data transmission between moving nodes using relay UAVs. The method involves establishing an air link between the inspection UAV and a relay UAV, then using the relay to restore communication between moving source and destination nodes when direct links are obstructed. It also involves adapting data distribution and retransmission to ensure reliable transmission over multiple channels.

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Automatic return of inspection data from a cluster of unmanned aerial vehicles (UAVs) to minimize interference between UAV communications and data receiving stations. The method involves intelligent recognition to optimize spectrum usage, adaptive modulation, interference analysis, and data compression. It uses energy detection for spectrum sensing, estimates data size, dynamically adjusts slot allocation, temporarily interrupts affected communications, waits for interference to disappear, and implements error detection and retransmission. The goal is to ensure reliable data return without conflicts by intelligently managing UAV communications during return.

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Optimizing communication efficiency in unmanned aerial vehicles (UAVs) to increase range by dynamically varying retry rates and forward error correction (FEC) coding based on real-time transmission statistics. The UAV analyzes transmission failures and modifies retry rates and FEC coding rates to balance reliability and efficiency.

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Communication method for unmanned aerial vehicles (UAVs) using intelligent super-surfaces and relays to improve performance when UAVs are deployed in locations where direct line-of-sight (LOS) is blocked. The method involves optimizing the cooperative system's parameters to maximize the UAV's data acquisition rate. It does this by jointly optimizing the time distribution of relay stages, RIS phase shifts, and UAV position. The optimization improves performance compared to using just RIS or relays alone.

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Ad hoc network communication method for unmanned aerial vehicles in long range scenarios where traditional wireless systems have poor performance. The method uses regenerative relay stations to extend communication range. Data is modulated and transmitted by one UAV, relayed through regenerative stations, and demodulated at the receiving UAV. This involves modulation, microwave transmission, and demodulation at each terminal and relay station.

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A method and device for controlling an unmanned aerial vehicle (UAV) that allows reliable communication between the UAV and ground controller when they use a private network link for data exchange. The method involves using the Sidelink feature of the UAV's cellular module as a backup transmission link if the private network coverage is lost. This ensures communication even if the ground controller is out of range of the private network. The UAV checks for private network availability and falls back to Sidelink if needed.

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Data transmission method that improves data transmission efficiency between a UAV controller and a UAV through two networks, i.e., a WIFI network and a cellular network. The method includes determining link quality of a first link, the link quality of the second link, and the link quality of the third link, when the link quality of the first link is less than the second threshold, the link quality of the second link is greater than the fourth threshold and the link quality of the third link is greater than the sixth threshold, and determining a mobile network communication link as the data transmission link.

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Signal transmission system for drones to extend the range of drone communications. The system uses a relay drone network to forward signals between a source drone and a ground control station. The system involves equipping drones with network chips that allow them to route signals through other drones and a base station. When a drone's signal can't reach the ground directly, it forwards the signal to a relay drone that can. The relay drone then forwards the signal to the ground. This multi-hop relaying allows signals to be transmitted over longer distances.

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Method for improving stability of communication links between unmanned aerial vehicles (UAVs) and ground stations by dynamically selecting the best link from multiple options. The UAV's flight control has a data forwarding protocol that sends data over multiple links like radio, cellular, and satellite. The ground station returns data with link selection commands based on analysis. The UAV's flight control selects the optimal link based on the command to ensure reliable and stable communication.

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Method for efficient communication between a drone and an unmanned vehicle using both licensed and unlicensed bands. The method involves dynamically adjusting the proportion of data transmitted over each band based on signal strength. If the licensed band has higher signal strength, more data is sent over licensed. If unlicensed has higher signal, more data is sent over unlicensed. This balances reliability and rate using the best available network.

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Efficient wireless covert communication using UAV relays that minimizes energy consumption while ensuring reliable data transfer and covertness. The method involves jointly optimizing the wake-up schedules of ground nodes and UAV trajectory to minimize max node energy while meeting data requirements and covertness constraints. It uses sequential convex optimization to find suboptimal solutions. The UAV has dual transmitters, one for data and one for artificial noise to conceal transmissions.

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Enabling long-range drone communication without increasing transmit power. The method involves a drone initially connecting to a primary controller. It then acquires request signals from secondary controllers and determines signal quality. Based on quality, it selects a secondary controller to connect with. This allows multiple controllers to relay the drone during flight without needing higher transmit power. The drone can interact in real-time during long-range flights without increasing transmit power.

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Optimizing unmanned aerial vehicle (UAV) deployment and resource allocation for reliable and low-latency wireless communication in UAV-assisted IoT networks. The method involves finding the UAV position, power levels, and delay allocation for each link that maximizes system performance under constraints like code length limits and overall resource capacity. This leverages the UAV's mobility to improve channel gain and reduce delay compared to fixed base stations, enabling reliable URLLC communication in IoT applications with limited code lengths.

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Using cellular networks to provide a more reliable and longer range communication link between drones and ground stations compared to traditional methods like radio. The system uses cellular modems in the drone and ground station to send compressed video and flight control commands over the cellular network. The link is managed to adapt to variable network conditions and maintain a connection.

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Efficiently managing energy use in a drone network to extend flight time and enable longer range communication. The drones dynamically adjust signal transmission power based on propagation conditions and distance to conserve energy. Drones near the center of the network have signals modulated to the minimum level needed, while drones farther out collect excess power. This balances power consumption and storage across the swarm.

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Unmanned aerial vehicle (UAV) communication system that improves reliability, link establishment speed, and data transmission rate by using redundant frequency bands. The UAV has both U-band and C-band antennas and modules. Initially, U-band is used for quick link setup. Then, if needed for higher data rates, C-band is switched to complete the link. This allows using the best frequency band for each stage. It also allows working around interference and jamming by switching bands.

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Formation unmanned aerial vehicle (UAV) remote communication system using dual communication modes to ensure reliable and stable communication between UAVs and ground control. The UAVs have 5G and 900MHz radios. The UAVs receive commands from ground via both radios simultaneously. A health judge module checks quality, stability, and time-ductility of each link. It selects the best mode to transmit data to the UAV. This provides redundancy, reliability, and fallback if 5G fails. The 5G provides high speed, capacity, and low latency. The 900MHz backup prevents interference and ensures safety when 5G base stations fail.

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An unmanned aerial vehicle (UAV) communication method and system that enables long-range UAV flights by intelligently managing communication resources. The method involves predicting UAV flight distance, and dynamically adjusting communication parameters like frequency and power based on that prediction. This optimizes communication efficiency for the specific flight distance. The system also includes heartbeat packets sent periodically to detect if the primary communication path is working, allowing backup paths to be used if necessary.

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A transmission/reception device for a control data link between a ground station and an unmanned aerial vehicle (UAV) that improves receiver quality and safety by automatically switching the UAV's transmitter during reception. The device uses the UAV and ground station locations and received signal strength to determine if the UAV is close enough for direct link risk. If so, it switches the UAV receiver to the transmitter during reception to prevent overload. This prevents strong ground signals from saturating the receiver and degrading performance.

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A system for enabling a drone to operate beyond the range of its controller using a relay drone. The system involves having the main drone acquire data like position and flight info from sensors, and transmit it along with a unique ID. A relay drone receives this data, forwards it, and relays its own ID to the main drone. The main drone then uses the relay drone's ID to communicate back to the user's controller through the relay drone. This allows the main drone to operate beyond the controller's range by using the relay drone as a middleman.

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Prioritizing data types over bonded communication channels between a remote controlled aircraft and ground control. The bonded communication links combines multiple modems on the aircraft for increased bandwidth. Different data types like radio communications, telemetry, video, etc are assigned priorities. The data is routed over the modems based on priority and link quality. This ensures critical data like control signals are always sent, even if one modem fails. It also allows radio communication from the aircraft to be received by ground control stations outside the radio range using cellular networks.

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Optimizing video transmission from drones to improve stability and reduce resources by dynamically adjusting resolution based on flight path. The system pre-sets resolution levels for different regions along the flight path. During flight, the drone's position is compared against the pre-set regions and the corresponding resolution is used for image capture. This allows lower resolutions in known areas and higher resolutions in critical areas to reduce overall data volume and conserve base station resources.

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Unmanned aerial vehicle (UAV) control system using wireless mesh networking for extended range communication, reliable data transmission, and real-time monitoring. The system involves multiple UAVs with onboard mesh subassemblies that can communicate with each other and a ground control unit with a mesh subassembly. This creates a mesh network for data transfer between UAVs and ground control, extending range compared to direct UAV-ground links. It allows UAVs to relay data when line-of-sight is lost or signals are weak.

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Extending the range of wireless data links on drones using existing short-range wireless technologies like WiFi and Bluetooth without sacrificing bandwidth or image quality. The method involves inserting transceiving devices between the ground and sky devices in a drone's wireless link. This creates separate short-range links between the ground and sky transceivers, and between the ground and sky devices. By forwarding data through the transceivers, it allows long-distance data transmission without degradation compared to just extending the short-range links.

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Enhancing communication reliability for unmanned aerial vehicles (UAVs) using a communication enhancement module that can be added to UAVs and a UAV control system. The module improves robustness and reliability of UAV communications in degraded bandwidth environments. It exploits the common communication protocol used by STANAG 4586 compliant UAVs and control systems. The module interacts with the UAVs and control system using the STANAG 4586 protocol. It receives messages with a destination like a control system, identifies multi-hop paths via other modules, determines if point-to-point links or hops are better, and adapts messages for multi-hop routing.

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A dual-mode communication system for unmanned aerial vehicles (UAVs) that combines radio and laser transmission to improve UAV data transfer. The system has a relay UAV set, a task UAV set, and a console. The relay UAVs act as intermediaries between the task UAVs and the console. For short distances, they use radio. For longer distances, they switch to laser transmission. This allows extending the UAV communication range beyond the radio limit. The relay UAVs relay the data between the task UAVs and console using the appropriate mode based on distance.

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Distributed rapid communication system for cluster unmanned aerial vehicles that improves reliability, robustness and efficiency compared to centralized ground station communication. The system uses a distributed ring topology where each UAV and the ground station are connected in sequence. This allows direct peer-to-peer communication between UAVs and reduces dependency on the ground station. The UAVs can also transmit data simultaneously without collisions since the ring topology avoids contention. The ground station acts as the first and last nodes in the ring to coordinate the UAVs.

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Unmanned aerial vehicle (UAV) communication system that combines data transmission and ranging functionality. The system uses a self-adaptive multi-system selection algorithm and a random channel selection algorithm to improve transmission rate and anti-interference performance. The algorithm involves random frequency hopping with good uniformity and randomness to reduce co-frequency probability and mitigate interference. The UAV has separate transmitter and ranging modules with unique IDs to avoid interference. The ranging uses time-of-flight (ToF) techniques to measure distance.

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A low power long range wireless communication system for controlling multiple drones that enables coordinated control of multiple drones in areas without wide area network coverage. Each drone has a low power wireless module operating on frequencies like 1GHz or less. They communicate using long range protocols like LoRa. A mobile relay device with similar modules connects to the drones and relays their flight data like position, altitude, speed, etc. This allows centralized control of the drones through the relay even in areas without wide area network coverage.

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Optimizing data transmission between a remotely operated air vehicle and a ground network to improve reliability and safety. The method involves using multiple cellular interfaces, like narrowband and broadband, to separate critical control data from payload data. It allows flexible assignment of resources based on situational needs. The air vehicle can transmit critical control data over the narrowband interface for stable latency and coverage. Payload data can use the broadband interface. This provides optimized performance for real-time control versus payload communication.

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Reliable multi-channel data transmission system for unmanned aircraft that improves safety by dynamically scheduling data transmission through multiple wireless modules based on signal quality. The system has sensors, GPS, motors, data acquisition, and earth station communication. Each module has a wireless transmitter. A signal detection module monitors quality. When a module fails or has poor signal, the communication dispatcher schedules other modules for redundant data transmission. This prevents loss and ensures reliable data acquisition and control.

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A long-range reliable communication system for unmanned aircraft that addresses the limitations of wireless transmission for unmanned aerial vehicles (UAVs). The system uses multiple wireless communication modules on the UAV to distribute the data transmission load. This allows collecting and transmitting more data from the UAV, including internal states, without relying on a single wireless module. It improves reliability and reduces the risk of complete data loss during flight due to signal quality issues.

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Intelligent data transfer system for unmanned aerial vehicles (UAVs) using Bluetooth low energy for efficient and reliable communication. It allows multiple UAVs to connect and transmit data simultaneously without the need for one-to-one radio links. The system uses an Ethernet server and hotspot device to provide a network for the UAVs to connect via Bluetooth. The Ethernet server coordinates and manages the UAV connections. The Bluetooth links are used for real-time data transfer and the Ethernet provides backhaul for cloud connectivity. This allows UAVs to communicate and share data while flying without range limitations or contention issues.

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A method for UAV communication with adaptive distance using parallel multi-channel transmission and switching between two modulation methods, FSK and LoRa, to balance range and data rate. The UAV and remote control simultaneously use multiple radio frequency chips for parallel transmission. After a channel completes, the UAV checks the received signal strength. If FSK RSSI is low, switch to LoRa for anti-jamming. If LoRa RSSI is high, switch to FSK for higher rate. This adaptive switching between FSK and LoRa based on signal quality improves UAV communication range and data rate compared to fixed modulation.

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Enabling efficient communication between unmanned aerial vehicles (UAVs) and cellular base stations without interference when UAVs fly above cell coverage. The UAVs broadcast their uplink (UL) transmission details over a low-power underlay channel to nearby base stations. This allows neighboring cells to know UAV UL resources without scheduling, reducing interference. Base stations adjust UL resources for UAVs vs ground users accordingly. The UAVs use spread spectrum signals on the underlay channel that can be detected and decoded by base stations.

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Efficient broadband data transmission method for unmanned aerial vehicles (UAVs) that allows wideband data transmission from UAVs to ground stations while considering compatibility with existing UAV control channels and power constraints. The method involves using a shared frame structure between the control channel and wideband data channel to enable coordinated operation. The wideband channel uses a SC-FDE or SC-FDMA modulation scheme with RRC filtering to mitigate fading. It also has subframes with slots containing data symbols and pilot symbols, a preamble, protection symbols, and guard time. This allows efficient wideband transmission in the UAV's limited power and weight while avoiding interference with control channels.

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Relaying unmanned aerial vehicles (UAVs) to extend communication range between a base station and remote UAVs in areas with obstructions or long distances. The relay UAVs have directional antennas to maintain line-of-sight links between the base and remote UAVs. They receive and forward commands, data, and signals between the UAVs and base station. This allows extending the UAV network coverage area and enabling communication beyond direct line-of-sight between the base and remote UAVs.

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A dual-station relay system for unmanned aerial vehicle (UAV) communications that enables long-range UAV data links beyond line-of-sight. The system uses terrestrial radio stations and mobile networks to relay UAV data over long distances. The UAV has a radio link to a terrestrial station and a mobile network module. Ground control stations have radio links to terrestrial stations and can communicate with each other via mobile networks. If UAVs exceed the range of the terrestrial stations, they fall back to the mobile network relay. This provides reliable long-range UAV data links using a combination of terrestrial radios and mobile networks.

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Quadrotor drone communication system using Bluetooth and Wi-Fi to address limitations of long distance and reliability issues. The system leverages the strengths of both technologies for robust and versatile drone communication. Bluetooth is used for short range, high speed control signals. Wi-Fi provides longer range, lower speed data transmission. The drone has Bluetooth and Wi-Fi modules. The ground station has Bluetooth and Wi-Fi as well. The drone and station can communicate using Bluetooth for quick, localized control, then switch to Wi-Fi for longer range data transfer.

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Relay data transmission method for unmanned aerial vehicle (UAV) groups to improve reliability and range compared to point-to-point links. The method involves using UAVs as relays to forward data between group members. When a UAV receives data, it checks conditions like signal strength and identifies the destination. If conditions are poor, the UAV forwards the data to another UAV with a better link to the destination. This relaying allows extending range and overcoming obstructions.

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Communication method for remote control of drones in a star network configuration to improve communication efficiency. The method involves using multiple access techniques to simultaneously receive data from multiple drones. Channel quality information is generated based on the received data from each drone. This channel quality feedback is sent to the drones to allow them to adjust the modulation and coding scheme (MCS) used for transmitting data. This adapts the transmission parameters based on the estimated channel quality received from the remote control.

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Enabling long-range drone communication in areas with poor signal quality by using relay drones. A relay drone amplifies and retransmits signals between a base station and other drones when the direct link between them is poor due to distance, terrain, or obstructions. The relay drone has an antenna to receive signals from the base station or another drone, amplifies them, and retransmits them using its own antenna. This allows extending the range and reliability of drone communications by leveraging relay drones to boost and forward signals in challenging environments.

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Enabling reliable real-time transmission of image and control data between a ground station and a UAV using multiple wireless protocols. The system allows efficient and reliable data transfer between the UAV and ground station using a combination of different wireless protocols. It addresses the challenge of limited bandwidth for real-time image transmission from UAVs. The ground station sends flight control and camera settings data to the UAV using one protocol, while the UAV sends image data using a second protocol. This separates the control and image channels to avoid congestion and improve reliability. Acknowledgements are used to coordinate data transmission over the separate channels.

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A system and method for long-range unmanned plane to earth station communication using a server as a data relay. The unmanned planes and earth stations send identification data to the server. The server matches planes with stations and relays their data. If a plane or station loses connection, the server detects it using periodic heartbeat packets. This allows reliable long-range communication between unmanned planes and earth stations using the server as a central hub.

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A relay system for unmanned helicopters to transmit data over long distances beyond the line-of-sight range of the ground station. The system involves deploying a relay unmanned helicopter between the ground station and the main unmanned helicopter to bridge the communication link. The relay helicopter acts as an aerial repeater to extend the range of the data link. The ground station communicates with the relay helicopter, which then relays the data to the main helicopter. This allows the main helicopter to operate beyond the range of the ground station.

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Communication system for unmanned aerial vehicle (UAV) swarms that allows reliable and secure clustered control. The system uses a central server instead of direct point-to-point communication between UAVs. Each UAV communicates with the server over 4G or similar cellular network. This provides stable, extended range communication with reliability and security improvements over point-to-point links. The central server can also compress video data from UAVs to reduce bandwidth. Encryption and key agreement further enhance security.

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