| Presentation | 2019-12-20 28GHz Band 5G Experimental Trial in High Mobility Environment Using the Shinkansen Nopbuhide Nonaka, Kazushi Muraoka, Tatsuki Okuyama, Satoshi Suyama, Yukihiko Okumura, Takahiro Asai, Yoshihiro Matsumura, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Commercial services in fifth-generation (5G) mobile communication system will start by using 3.7 GHz, 4.5 GHz, and 28 GHz bands in Japan. Especially, in the 28 GHz band, the higher bit-rate transmission attracts much attention because the wider bandwidth of 400 MHz is available. On the other hand, for further enhancement of 5G (5G evolution), it is expected that the more stable high bit-rate transmission using high SHF bands such as 28 GHz or EHF bands is realized even in high-mobility environments such as high-speed trains. We conducted 5G experimental trials employing 28 GHz-band 5G experimental systems that implement beamforming and beam tracking functions in railway environments where a train travels at a velocity of almost 100 km/h, and verified the feasibility of the stable high bit-rate transmission. However, in future 5G use cases in the Shinkansen, a dynamic change of the beam direction and the larger Doppler shift may cause performance degradation of the 28 GHz-band transmission. Thus, we have conducted a 28 GHz-band 5G experimental trial using an actual high-speed bullet train that runs at a maximum speed of 283 km/h. This report introduces a 28 GHz-band 5G experimental system used for the 5G experimental trial and detailed experimental configuration where three base stations were deployed along rail track of the Tokaido Shinkansen and a mobile station was set in a vehicle, and clarifies downlink transmission performances measured in such a high-mobility environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / High-speed train / High mobility / Massive MIMO / Beamforming |
| Paper # | RCS2019-264 |
| Date of Issue | 2019-12-12 (RCS) |
| Conference Information | |
| Committee | NS / RCS |
|---|---|
| Conference Date | 2019/12/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Memorial Hall of Alumni(Engineering), Tokushima Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. |
| Chair | Yoshikatsu Okazaki(NTT) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Akihiro Nakao(Univ. of Tokyo) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Akihiro Nakao(Osaka Pref Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) |
| Assistant | Shinya Kawano(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Radio Communication Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 28GHz Band 5G Experimental Trial in High Mobility Environment Using the Shinkansen |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | High-speed train |
| Keyword(3) | High mobility |
| Keyword(4) | Massive MIMO |
| Keyword(5) | Beamforming |
| 1st Author's Name | Nopbuhide Nonaka |
| 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 | Tatsuki Okuyama |
| 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) |
| 6th Author's Name | Takahiro Asai |
| 6th Author's Affiliation | NTT DOCOMO, INC(NTT DOCOMO) |
| 7th Author's Name | Yoshihiro Matsumura |
| 7th Author's Affiliation | Central Japan Railway Company(JR Central) |
| Date | 2019-12-20 |
| Paper # | RCS2019-264 |
| Volume (vol) | vol.119 |
| Number (no) | RCS-345 |
| Page | pp.pp.145-150(RCS), |
| #Pages | 6 |
| Date of Issue | 2019-12-12 (RCS) |