Outdoor Experiments on 5G Radio Access in 5G Trial Site Using Core Network in 28-GHz Frequency Band
| Autor: | Xiangyang Zhuang, Arne Simonsson, Kenneth Stewart, Peter Ökvist, Shoji Itoh, Yoshihisa Kishiyama, Daisuke Kurita, Kensuke Miyachi, Jong-Kae Fwu, Daisuke Kitayama, Hideshi Murai |
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| Rok vydání: | 2019 |
| Předmět: |
Beamforming
Frequency band business.industry Computer science Orthogonal frequency-division multiplexing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Real-time computing Core network 020206 networking & telecommunications 02 engineering and technology 01 natural sciences 010309 optics Non-line-of-sight propagation Radio propagation Base station Handover Mobile station 0103 physical sciences Telecommunications link 0202 electrical engineering electronic engineering information engineering Wireless business Throughput (business) |
| Zdroj: | VTC-Fall |
| DOI: | 10.1109/vtcfall.2019.8891237 |
| Popis: | This paper presents outdoor field experimental results in the 28-GHz frequency band of a 5G radio access system where base stations (BSs) and a core network are installed on buildings to deploy a 5G trial area in the Tokyo Odaiba waterfront area as a 5G trial site. This is the first report of a 5G trial in a realistic urban deployment in an approximate 1 square kilometer area using a single 5G network. In this trial area, a variety of key 5G technologies are evaluated such as the peak data rate and throughput performance, 5G coverage area, BS and mobile station (MS) massive multiple-input multiple-output antennas for beamforming and tracking, intra- and inter-baseband unit handover employing the high frequency of 28 GHz, and the wide frequency bandwidth of 400 MHz in a realistic urban deployment. Results show that coverage is provided for 88% of the assessed drive route and the downlink throughput of 650 Mbps is achieved for 80% of the route. As indicated when buildings block the radio signal, line of sight (LoS) or non-LoS (NLoS) conditions are critical for signal propagation in the 28-GHz frequency band. To improve coverage in NLoS areas, a portable BS using a wireless backhaul system is installed in the trial area. With the portable BS, the corresponding coverage area is increased from 50% to 83% along the assessed drive route resulting in improved downlink throughput from 600 Mbps to 660 Mbps, and 250 Mbps to 280 Mbps in the uplink. |
| Databáze: | OpenAIRE |
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