| Presentation | 2022-07-14 An Experimental Study on Automatic Gain Control in HAPS Repeater System Takuya Hasegawa, Mitsukuni Konishi, Yoshichika Ohta, Atsushi Nagate, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High-Altitude Platform Station (HAPS) is a new mobile communication platform which enables to directly provide mobile communications services with LTE (Long Term Evolution) or 5G NR (New Radio) from stratosphere to terrestrial User Equipment (UE) by utilizing aerial vehicles in stratosphere, and it is very attractive due to its ultrawide service coverage and as a backup line of mobile communications in case of disaster. In a HAPS wireless repeater system equipped with a non-regenerative repeater station, which is one of implementations of HAPS mobile communication systems, propagation loss through feeder link between terrestrial master device and aerial remote device of the repeater system changes over time, and AGC (Automatic Gain Control) is therefore important. However, in the HAPS wireless repeater system, it is essential to consider effects of antenna rotation accompanied with a circular flight of the platform. Particularly, the effect is remarkable when using linearly polarized wave antennas for the feeder link considering internal loss of antennas. In this paper, we propose a new method which gives stable gain control of AGC under the antenna rotation and experimentally evaluate its effect. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HAPS / Wireless repeater system / AGC / 5G NR |
| Paper # | SR2022-29 |
| Date of Issue | 2022-07-06 (SR) |
| Conference Information | |
| Committee | NS / SR / RCS / SeMI / RCC |
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| Conference Date | 2022/7/13(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Kanazawa Theatre + Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Distributed Wireless Network, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Chair | Tetsuya Oishi(NTT) / Suguru Kameda(Hiroshima Univ.) / Kenichi Higuchi(Tokyo Univ. of Science) / Koji Yamamoto(Kyoto Univ.) / Shunichi Azuma(Nagoya Univ.) |
| Vice Chair | Takumi Miyoshi(Shibaura Insti of Tech.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Kazuya Monden(Hitachi) / Yasunori Owada(NICT) / Shunsuke Saruwatari(Osaka Univ.) / Shunichi Azuma(Hokkaido Univ.) / Koji Ishii(Kagawa Univ.) |
| Secretary | Takumi Miyoshi(NTT) / Osamu Takyu(Kogakuin Univ.) / Kentaro Ishidu(Mie Univ.) / Kazuto Yano(Tokai Univ.) / Tomoya Tandai(NTT) / Fumihide Kojima(Panasonic) / Osamu Muta(Univ. of Electro-Comm) / Kazuya Monden(Sharp) / Yasunori Owada(NTT DOCOMO) / Shunsuke Saruwatari(Tokyo Univ. of Agri. and Tech.) / Shunichi Azuma(Osaka Univ.) / Koji Ishii(CRIEPI) |
| Assistant | Kotaro Mihara(NTT) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Yuki Matsuda(NAIST) / Akihito Taya(Aoyama Gakuin Univ.) / Takeshi Hirai(Osaka Univ.) / SHAN LIN(NICT) / Ryosuke Adachi(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Smart Radio / Technical Committee on Radio Communication Systems / Technical Committee on Sensor Network and Mobile Intelligence / 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) | An Experimental Study on Automatic Gain Control in HAPS Repeater System |
| Sub Title (in English) | |
| Keyword(1) | HAPS |
| Keyword(2) | Wireless repeater system |
| Keyword(3) | AGC |
| Keyword(4) | 5G NR |
| 1st Author's Name | Takuya Hasegawa |
| 1st Author's Affiliation | SoftBank Corporation(SoftBank) |
| 2nd Author's Name | Mitsukuni Konishi |
| 2nd Author's Affiliation | SoftBank Corporation(SoftBank) |
| 3rd Author's Name | Yoshichika Ohta |
| 3rd Author's Affiliation | SoftBank Corporation(SoftBank) |
| 4th Author's Name | Atsushi Nagate |
| 4th Author's Affiliation | SoftBank Corporation(SoftBank) |
| Date | 2022-07-14 |
| Paper # | SR2022-29 |
| Volume (vol) | vol.122 |
| Number (no) | SR-107 |
| Page | pp.pp.41-47(SR), |
| #Pages | 7 |
| Date of Issue | 2022-07-06 (SR) |