13 research outputs found

    From Annoying and Invasive Buzzer to a Useful Tool – Drones to Assist People

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    Ideas of sci-fi movies are becoming a reality soon, and in the future, there will be more and more flying devices in the air. In the hands of skillful and educated operators, drones are safe tools, and they provide new ways to create added value in different areas of life. Drones are not to harm – they are to help

    Utilizing Private Mobile Network for UAV Communication in Logistics

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    Unmanned Aerial Vehicle (UAV) technology is evolving each year at a rapid pace and new innovative ways of utilizing UAV’s are constantly emerging. Manufacturers are launching new solutions to the market almost each year. These technological solutions are making the use of UAVs safer and more versatile thus making them a potential technology to many business use cases and applications. There are still some challenges, such as the limitations to the UAV’s connectivity that are limiting the use of UAV’s in extreme operations. UAVs demand two different communication links for their operation, (1) a command and control link to control the drone and (2) a data link for the payloads higher throughput rate. A reliable data link is an essential part of UAV-based applications. It allows data transfer from payload devices such as sensors, cameras, to edge and cloud enabling real-time data gather for analysis and decision making. Although, UAVs are still mainly controlled by ISM band short-range radio controllers, for years there has been a discussion ongoing that the mobile network technology could bring a new way to control the UAV’s in long-range operations. This paper studies the use of a mobile network for UAV communications in business applications. The focus of this paper is on logistics use cases in which the UAVs can enable more useful, faster and more efficient ways of delivering small packages. The paper also introduces UAV platforms that are designed and build on specific logistic use cases challenges related to their communications

    The use of unmanned aircraft system for the radio frequency interference measurements

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    Abstract The unmanned aircraft systems (UAS) are commonly used for aerial photography, express delivery for packets or video monitoring. The UAS technology can help responding to the growing demands of the frequency monitoring by national radiocommunication authorities (NRAs). This article presents a practical usage trial of an unmanned aircraft for monitoring the spectrum usage and finding the interference location. The monitoring of spectrum usage is one part of the NRAs’ process for guarantee user compliance with radio license conditions. Finding illegal or malfunctioning transmitters is a challenging task especially in urban environment, due to multi-path propagation conditions. This study focuses on practical assessment of the method for determining accurate location of radio frequency interference sources from the buildings using the UAS technology. The practicability of the UAS technology usage in spectrum monitoring activities was under the evaluation. This study showed promising results that UAS with the measurement equipment setup suits NRAs’ as a tool for mobile monitoring on the air

    Using unmanned aircraft systems for mobile network verifications

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    Abstract This study presents the usage of unmanned aircraft for site survey and antenna pattern measurements in-situ in mobile networks. The site survey is one part of the verification and optimization process of the network operator. Mobile network operators’ responsibility is to ensure the broadly available, reliable network series that are essential for customer experience. Technically that means mobile network coverage of the desired area without holes and with good capacity. The operator performs network planning in order to optimize coverage and capacity. It is essential to know the antenna pattern to plan and design an effective and efficient mobile network. Antenna manufacturers provide antenna radiation patterns measured in the standard anechoic chamber. Understanding how real site implementation differs from the laboratory measurements is also crucial. This study focuses on developing in-situ antenna measurements for the antenna patterns recorded in the laboratory. The evaluation of antenna radiation patterns in a real environment will provide additional information about what kind of effect the antenna site mast, installation, and antenna performance parameters will have on the theoretical radiation pattern

    Development of the measurement method for challenging NLOS conditions in mobile networks

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    Abstract The aim of this paper is to introduce the measurement method for challenging Non-Line of Sight (NLOS) conditions in mobile networks. The need to develop the measurement method appeared LTE (Long Term Evolution) uplink (UL) performance with different antenna technologies when receiving NLOS signal in field tests. Many challenges appeared during the study. This paper introduces the challenges and presents solution
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