| Presentation | 2022-03-03 Radio Protection Area Estimation for Sub-6GHz-Band Spectrum Sharing System Assisted by VHF-Band Radio Sensing Information Shingo Tomida, Keiichi Mizutani, Hiroshi Harada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | 5G system service was launched in 2020. In Japan, apart from the nationwide public service of 5G systems by telecommunication carriers, a private 5G system in sub-6 GHz band called local 5G system is actively used. When multiple local 5G systems are operated at the same frequency in nearby areas, it is important that they can be operated without interference with each other. To avoid interference between systems with high efficiency, it is necessary to calculate the radio protection area of each system based on the radio wave propagation model. However, it is necessary to add an appropriate margin to the calculated radio protection area for reliable operation. In this report, we propose a method using VHF band sensing information to estimate the margin of the radio protection area for the sub-6 GHz band spectrum sharing system. In the proposed method, a VHF reference signal generator is installed at the same location as the sub-6 GHz base station to be protected, and the VHF propagation from the reference signal generator is observed in real-time. The proposed method adds a minimum margin by combining the observed VHF band reception area and the radio protection area estimated by the conventional method. The proposed method is evaluated using the results of radio propagation experiments in the VHF and sub-6 GHz bands conducted on the campus of Kyoto University, and its effectiveness is demonstrated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spectrum sharing system / Radio propagation model / Radio protection area / 5G / Local 5G / Sub-6 GHz band / VHF band / Radio sensing system |
| Paper # | SRW2021-73 |
| Date of Issue | 2022-02-23 (SRW) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2022/3/2(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Mie Univ.) / Osamu Takyu(Tokai Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hirokazu Sawada |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Radio Protection Area Estimation for Sub-6GHz-Band Spectrum Sharing System Assisted by VHF-Band Radio Sensing Information |
| Sub Title (in English) | |
| Keyword(1) | Spectrum sharing system |
| Keyword(2) | Radio propagation model |
| Keyword(3) | Radio protection area |
| Keyword(4) | 5G |
| Keyword(5) | Local 5G |
| Keyword(6) | Sub-6 GHz band |
| Keyword(7) | VHF band |
| Keyword(8) | Radio sensing system |
| 1st Author's Name | Shingo Tomida |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Keiichi Mizutani |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 3rd Author's Name | Hiroshi Harada |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2022-03-03 |
| Paper # | SRW2021-73 |
| Volume (vol) | vol.121 |
| Number (no) | SRW-393 |
| Page | pp.pp.21-26(SRW), |
| #Pages | 6 |
| Date of Issue | 2022-02-23 (SRW) |