| Presentation | 2023-12-15 Terminal Scheduling Method for Spectrum Sharing between Non-Terrestrial Networks and Terrestrial Networks using Radio Map Shugo Hirano, Hirofumi Nakajo, Takeo Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the proliferation of the Internet-of-Things (IoT) and cell phones, there is a need to provide high-speed communications to a large number of users. Next-generation mobile communication systems, Beyond 5G/6G, are considering the use of non-terrestrial networks (NTNs) to ensure a wide coverage area and to accommodate the increase in users. Satellite communications, which is one of NTNs, have a wider coverage area than base stations of terrestrial networks (TNs), but utilization of NTNs concerns the impact on terrestrial networks when considering spectrum between NTNs and TNs. For spectrum sharing with the TNs, frequency bands are allocated for each communication link, and an investigation is conducted on the timing schedule method for TNs and NTNs terminals. We consider the impact on each terminal and base station when using reverse pairing, which reverses the up-link and down-link frequency resource links between NTNs and TNs. To avoid interference between terminals, which was found to be necessary when performing reverse pairing, scheduling of terminals is conducted, and a radio map is utilized for this schedule. To confirm the effectiveness of the proposed method, we evaluated the number of possible transmission terminals affected by the error of information in the radio map by computer simulation. The results show that efficient spectrum sharing between terrestrial and non-terrestrial networks is possible even when estimation errors occur in the case of using radio map. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spectrum sharing / satellite / non-terrestrial network / spectrum database / radio map |
| Paper # | RCS2023-201 |
| Date of Issue | 2023-12-07 (RCS) |
| Conference Information | |
| Committee | NS / RCS |
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| Conference Date | 2023/12/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Institute of Technology Tobata campus, and Online |
| 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 | Tetsuya Oishi(NTT) / Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | Takumi Miyoshi(Shibaura Inst. of Tech.) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Naoto Ishii(NEC) |
| Secretary | Takumi Miyoshi(NTT) / Fumihide Kojima(Kogakuin Univ.) / Osamu Muta(Univ. of Electro-Comm) / Naoto Ishii(Sharp) |
| Assistant | Hiroshi Yamamoto(NTT) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Kiichi Tateishi(NTT Docomo) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Terminal Scheduling Method for Spectrum Sharing between Non-Terrestrial Networks and Terrestrial Networks using Radio Map |
| Sub Title (in English) | |
| Keyword(1) | spectrum sharing |
| Keyword(2) | satellite |
| Keyword(3) | non-terrestrial network |
| Keyword(4) | spectrum database |
| Keyword(5) | radio map |
| 1st Author's Name | Shugo Hirano |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Hirofumi Nakajo |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | Takeo Fujii |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2023-12-15 |
| Paper # | RCS2023-201 |
| Volume (vol) | vol.123 |
| Number (no) | RCS-308 |
| Page | pp.pp.123-128(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-12-07 (RCS) |