| Presentation | 2018-07-12 Outdoor Trial of Beamforming in Ultra-Highly Mobile Environment Yuta Takahashi, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Field trials of the fifth-generation (5G) mobile communication system using 28 GHz band at which almost 1-GHz band will be available have been performed all over the world. To realize large coverage at such a high frequency band, beamforming by Massive MIMO (Multiple Input Multiple Output) is necessary to compensate large path loss. Furthermore, beam tracking which adaptively changes beam direction according to user location is an important function to support user mobility. Authors already conducted outdoor trials for downlink performance evaluation in highly-mobile outdoor environment up to velocity of 150 km/h using 28GHz-band 5G prototypes with a single base station implementing beam tracking. On the other hand, importance of evaluation of uplink transmission has been increasing for e.g. video streaming from high speed train. Handover performance is also important for a continuous video streaming. Thus, authors conducted outdoor trials for evaluation of uplink performance and that of handover performance in ultra-highly mobile environment. This report reveals results of uplink and handover performances in the ultra-highly mobile outdoor trials. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Ultra-High Mobility / Massive MIMO / Beamforming / Beam Tracking / Handover |
| Paper # | RCS2018-112 |
| Date of Issue | 2018-07-04 (RCS) |
| Conference Information | |
| Committee | ASN / NS / RCS / SR / RCC |
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| Conference Date | 2018/7/11(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hakodate Arena |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Distributed Network, Machine Learning and AI for Wireless Communications and Networks, M2M (Machine-to-Machine), D2D (Device-to-Device), IoT（Internet of Things）, etc. |
| Chair | Hiraku Okada(Nagoya Univ.) / Yoshikatsu Okazaki(NTT) / Tomoaki Otsuki(Keio Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Kazunori Hayashi(Osaka City Univ.) |
| Vice Chair | Koji Yamamoto(Kyoto Univ.) / Jin Nakazawa(Keio Univ.) / Kazuya Monden(Hitachi) / Akihiro Nakao(Univ. of Tokyo) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Shunichi Azuma(Nagoya Univ.) / HUAN-BANG LI(NICT) |
| Secretary | Koji Yamamoto(NICT) / Jin Nakazawa(Sophia Univ.) / Kazuya Monden(Kanagawa Inst. of Tech.) / Akihiro Nakao(NTT) / Eisuke Fukuda(Osaka Pref Univ.) / Satoshi Suyama(Hokkaido Univ.) / Fumiaki Maehara(NTT) / Masayuki Ariyoshi(NICT) / Suguru Kameda(ATR) / Shunichi Azuma(Univ. of Electro-Comm.) / HUAN-BANG LI(Kagawa Univ.) |
| Assistant | Masafumi Hashimoto(Osaka Univ.) / Tomoyuki Ota(Hiroshima City Univ.) / Tatsuya Kikuzuki(Fujitu Lab.) / Ryo Nakano(HITACHI) / Yoshifumi Hotta(Mitsubishi Electric) / Kenichi Kashibuchi(NTT) / Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(Mie Univ.) / Koji Ohshima(Kozo Keikaku Engineering) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Toshinori Kagawa(NICT) / Masateru Ogura(NAIST) |
| Paper Information | |
| Registration To | Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Network Systems / Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Reliable Communication and Control |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Outdoor Trial of Beamforming in Ultra-Highly Mobile Environment |
| Sub Title (in English) | Uplink Massive MIMO and Handover Performances at 28GHz |
| Keyword(1) | 5G |
| Keyword(2) | Ultra-High Mobility |
| Keyword(3) | Massive MIMO |
| Keyword(4) | Beamforming |
| Keyword(5) | Beam Tracking |
| Keyword(6) | Handover |
| 1st Author's Name | Yuta Takahashi |
| 1st Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 2nd Author's Name | Kazushi Muraoka |
| 2nd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 3rd Author's Name | Jun Mashino |
| 3rd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 4th Author's Name | Satoshi Suyama |
| 4th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 5th Author's Name | Yukihiko Okumura |
| 5th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| Date | 2018-07-12 |
| Paper # | RCS2018-112 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-125 |
| Page | pp.pp.155-160(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-07-04 (RCS) |