High-Speed Beam Tracking Demonstrated Using a 28 GHz 5G Trial System

Larsson, Kjell; Halvarsson, Bjoern; Singh, Damanjit; Chana, Ranvir; Manssour, Jawad; Na, Minsoo; Choi, Changsoon; Jo, Sung-Ho

doi:10.1109/vtcfall.2017.8288043

Cited by 23 publications

(5 citation statements)

References 14 publications

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“…The testbed is deployed in two different environments: a dense urban area with micro-cells and an open line-of-sight area. Furthermore, they have similar testbeds using different frequency bands in [28] and [29].…”

Section: Related Workmentioning

confidence: 99%

Mobile networks expanding to space: Overview of the seranis beyond 5G testbed

Sertac Kaya,

Diego Tuzi,

Pheobe Agbo

et al. 2024

ITU J-FET

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In recent years, Non-Terrestrial Networks (NTNs) have gained increased attention from the 3rd Generation Partnership Project (3GPP) due to their potential to enhance cellular networks by improving coverage, resiliency, and reliability, especially in rural areas and disaster scenarios. The upcoming Sixth-Generation (6G) cellular networks aim to establish layers of cells at different altitudes with Base Stations (BSs) on Earth and in space, providing a seamless user experience. Testing and experimentation are crucial for realizing this ambitious vision. University of the Bundeswehr Munich (UniBw M) is deploying a Beyond 5G (B5G) and 6G testbed comprising both space and ground segments. The space segment of the testbed is composed of the ATHENE-1 satellite that is going to be launched in 2025. The ground segment includes the satellite ground station with several full motion antennas for the radiofrequency links and an optical ground station for the free-space optical link based on laser technology, while the Terrestrial Network (TN) component is deployed using a Fifth-Generation (5G) Non-Public Network (NPN) with multiple gNodeBs (gNBs) and multiple 5G core solutions. In its current state, the testbed includes various measurement equipment and emulators in the 5G Lab, a Gnb with two active cells, a core network, a satellite ground station, and a mobile 5G on-the-move solution. This testbed allows various experiments including interference management between existing networks, positioning and localization, Public Protection and Disaster Recovery (PPDR) using Multi-Access Edge Computing (MEC) and NTN. This paper describes the components of the Seamless Radio Access Networks for Internet of Space (SeRANIS) B5G testbed, the current status, future deployment plan, preliminary test results, and planned tests.

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Section: Related Workmentioning

confidence: 99%

Mobile networks expanding to space: Overview of the seranis beyond 5G testbed

Sertac Kaya,

Diego Tuzi,

Pheobe Agbo

et al. 2024

ITU J-FET

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“…In recent years, the 5G cellular network has also attracted attention as a network for trains or mobile vehicles [2], [5], [15], [16]. High-speed communications using millimeter-wave (28 GHz band) for high-speed mobile vehicles are proposed.…”

Section: Related Workmentioning

confidence: 99%

A Fast Handover Mechanism for Ground-to-Train Free-Space Optical Communication using Station ID Recognition by Dual-Port Camera

Mori

Teraoka

Haruyama

2023

IEICE Trans. Inf. & Syst.

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There are demands for high-speed and stable ground-totrain optical communication as a network environment for trains. The existing ground-to-train optical communication system developed by the authors uses a camera and a QPD (Quadrant photo diode) to capture beacon light. The problem with the existing system is that it is impossible to identify the ground station. In the system proposed in this paper, a beacon light modulated with the ID of the ground station is transmitted, and the ground station is identified by demodulating the image from the dual-port camera on the opposite side. In this paper, we developed an actual system and conducted experiments using a car on the road. The results showed that only one packet was lost with the ping command every 1 ms near handover. Although the communication device itself has a bandwidth of 100 Mbps, the throughput before and after the handover was about 94 Mbps, and only dropped to about 89.4 Mbps during the handover.

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“…In the future, even higher data rates can be expected as the number of coil elements in arrays, the spatial resolution used in many applications, and the size of datasets from peripheral devices (eg, 4K video) all increase, which may require different modulation techniques for wireless data transfer. A possible solution is to use current cellular mmWave 5G multiple-input, multiple-output (MIMO) technologies 107,108 to wirelessly transmit data in the scanner. For example, a 4 Â 4 MIMO 28-GHz 5G wireless system has measured uplink and downlink throughput speeds of approximately 1 and 9 Gbps, respectively, 109 which would be sufficient to wirelessly transmit any MRI dataset in the foreseeable future.…”

Section: Wireless Rf Coil Arraysmentioning

confidence: 99%

Recent Advances in Radio‐Frequency Coil Technologies: Flexible, Wireless, and Integrated Coil Arrays

Darnell

Truong

Song

2021

Magnetic Resonance Imaging

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Radio-frequency (RF) coils are to magnetic resonance imaging (MRI) scanners what eyes are to the human body. Because of their critical importance, there have been constant innovations driving the rapid development of RF coil technologies. Over the past four decades, the breadth and depth of the RF coil technology evolution have far exceeded the space allowed for this review article. However, these past developments have laid the very foundation on which some of the recent technical breakthroughs are built upon. Here, we narrow our focus on some of the most recent RF coil advances, specifically, on flexible, wireless, and integrated coil arrays. To provide a detailed review, we discuss the theoretical underpinnings, experimental implementations, promising results, as well as future outlooks covering these exciting topics. These recent innovations have greatly improved patient comfort and ease of scan, while also increasing the signal-to-noise ratio, image resolution, temporal throughput, and diagnostic and treatment accuracy. Together with advances in other MRI subfields, they will undoubtedly continue to drive the field forward and lead us to an ever more exciting future. Level of Evidence: 5 Technical Efficacy: Stage 1

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High-Speed Beam Tracking Demonstrated Using a 28 GHz 5G Trial System

Cited by 23 publications

References 14 publications

Mobile networks expanding to space: Overview of the seranis beyond 5G testbed

Mobile networks expanding to space: Overview of the seranis beyond 5G testbed

A Fast Handover Mechanism for Ground-to-Train Free-Space Optical Communication using Station ID Recognition by Dual-Port Camera

Recent Advances in Radio‐Frequency Coil Technologies: Flexible, Wireless, and Integrated Coil Arrays

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