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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 149  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2024-04-26
13:00
Hiroshima
(Primary: On-site, Secondary: Online)
Frequency sharing between ground and sky cells by applying beamforming and MU-MIMO canceller in mobile communication.
Toshihisa Tsuji, Toshihisa Tsuji, Teruya Fujii (Tokyo Tech)
(To be available after the conference date) [more]
AP 2024-03-15
13:25
Fukui UNIVERSITY OF FUKUI
(Primary: On-site, Secondary: Online)
Measurement accuracy of K factor in the sky cell for 3D spatial cell construction
Teruya Fujii (Titech), Susumu Yoneda (SB) AP2023-216
The flight control of drones and the transfer of captured video data by using the mobile communication network will be e... [more] AP2023-216
pp.85-90
RCS, SR, SRW
(Joint)
2024-03-13
14:45
Tokyo The University of Tokyo (Hongo Campus), and online
(Primary: On-site, Secondary: Online)
[Invited Lecture] A Development of a Same-Frequency Interference Canceller from 5G Base Stations to Satellite Ground Stations
Takafumi Fujii (Softbank), Teruya Fujii (Tokyo Tech) SR2023-94
5G systems and downlink of satellite communication systems are allocated the same frequency in the C-band. Therefore, th... [more] SR2023-94
pp.37-42
NS, RCS
(Joint)
2023-12-15
14:50
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
High-accuracy 3D spatial measurement of Nakagami-Rice variation K-Factor in Sky Cells
Teruya Fujii (Titeck) RCS2023-202
The flight control of drones and the transfer of captured video data by using the mobile communication network will be e... [more] RCS2023-202
pp.129-134
NS, RCS
(Joint)
2023-12-15
15:15
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
A Study on Channel Response Estimation of Neighboring Cell Terminals using SRS in 3D Spatial Cell Configuration for Mobile Communications -- Considering Frequency Offset in SRS --
Takuya Kaneda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech) RCS2023-203
In 3D spatial cell configuration, multiple small cells are located inside a macro cell, and the same frequency is used f... [more] RCS2023-203
pp.135-140
NS, RCS
(Joint)
2023-12-15
15:40
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
Optimization of Base Station Coordinated Virtualized Cell MU-MIMO Canceller according to the Accuracy of Channel Estimation
Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2023-204
In mobile communication systems such as 5G, ultra-high-speed data transmission anywhere within a cell is expected. In ce... [more] RCS2023-204
pp.141-146
AP, RCS
(Joint)
2023-11-17
15:35
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
Construction of Coordinated Base Stati ons for Network Coordination Interferen ce Canceller
Takafumi Fujii, Takuya Kaneda, Ryohei Maeda (Softbank), Teruya Fujii (Tokyo Tech) RCS2023-176
 [more] RCS2023-176
pp.124-128
AP, RCS
(Joint)
2023-11-17
16:00
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
The same frequency sharing by coordinating between UAV/HAPS and terrestrial cellular
Teruya Fujii (Titech), Takafumi Fujii (SoftBank) RCS2023-177
HAPS started as a millennium initiative in 2000 AD, but was put on hold. Recently, the "HAPS cellular system" using HAPS... [more] RCS2023-177
pp.129-134
RCS, SAT
(Joint)
2023-08-31
17:25
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
A ProtPrototyptype of Equipment t that cancels Interference from 5G Base Stations to Satellite Ground Stations
Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech) RCS2023-112
 [more] RCS2023-112
pp.49-54
RCS, SAT
(Joint)
2023-09-01
09:25
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
A Study on Channel Response Estimation of Neighboring Cell Terminals using SRS in 3D Spatial Cell Configuration for Mobile Communications
Takuya Kaneda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech) RCS2023-117
In a heterogeneous network (HetNet) configuration, multiple small cells are located inside a macro cell, and the same fr... [more] RCS2023-117
pp.79-84
RCS, SAT
(Joint)
2023-09-01
09:50
Nagano Naganoken Nokyo Building, and online
(Primary: On-site, Secondary: Online)
Virtual Cell MU-MIMO Canceller Coordinating Base Stations in TDD Transmission -- Eigenmode transmission without feedback of transmit and receive weights --
Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2023-118
In mobile communication systems such as 5G, ultra-high-speed data transmission is expected anywhere within a cell. In a ... [more] RCS2023-118
pp.85-89
RCS 2023-04-13
10:00
Shimane Matsue New Urban Hotel, and online
(Primary: On-site, Secondary: Online)
A Study on Optimal Configuration of Massive Antenna for MU-MIMO Base Station Considering 3D Spatial Radio Arrival Angle Characteristics
Kohei Mitsumoto, Ryohei Maeda, Hikari Tsuhama, Teruya Fujii (Tokyo Tech) RCS2023-1
In the 5th and 6th generation mobile communication systems, beamforming with massive antennas consisting of dozens to hu... [more] RCS2023-1
pp.1-6
RCS, SR, SRW
(Joint)
2023-03-03
09:50
Tokyo Tokyo Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
A Study on Further Enhancement of Interference Canceller for Satellite Communication System from 5G Systems with Same Frequency
Takafumi Fujii (Softbank), Teruya Fujii (Tokyo Tech) RCS2022-286
5G systems and downlink of satellite communication systems are allocated the same frequency in the C-band. Therefore, th... [more] RCS2022-286
pp.213-218
RCS, AP, UWT
(Joint)
2022-11-17
09:55
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A Study on Efficient Measurement Method of K-Factor on Sky Cell for 3D Spatial Cell Construction
Teruya Fujii (Titech) AP2022-165
 [more] AP2022-165
pp.103-108
RCS, AP, UWT
(Joint)
2022-11-17
15:50
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A Study on Improvement of Communication Quality by Base Station Cooperative Up-Link MU-MIMO Interference Canceller with mixed SIMO and MIMO Transmissions
Ryohei Maeda (Tokyo Tech), Teruya Fujii (Tokyo Tech/Softbank Corp.) RCS2022-184
The mobile communication systems such as 5G, ultra-high-speed data transmission is expected anywhere in a cell. In a mob... [more] RCS2022-184
pp.167-172
RCS 2022-10-28
11:45
Ehime Ehime University, and online
(Primary: On-site, Secondary: Online)
A Study on Frequency Sharing in 3D Cell Structure consisting of Ground and Sky Cells by using Base Station Beamforming -- Application of Maximum Ratio Combining (MRC) Reception --
Shoichi Sudo (SB), Teruya Fujii (Tokyo Tech) RCS2022-147
 [more] RCS2022-147
pp.95-100
NS, IN, CS, NV
(Joint)
2022-09-01
14:25
Iwate MALIOS (Iwate Prefecture) + Online Meeting
(Primary: On-site, Secondary: Online)
[Special Invited Talk] Temporary Wireless Relay System for Mobile Phones in the Event of a Disaster -- Role as Victim Rescue --
Teruya Fujii (Titech) NS2022-65 IN2022-30 CS2022-38
It is important to locate the victim as soon as possible in order to save the victim buried under snow, landslide and ru... [more] NS2022-65 IN2022-30 CS2022-38
pp.29-34(NS), pp.19-24(IN), pp.1-6(CS)
SAT, RCS
(Joint)
2022-08-25
09:50
Hokkaido
(Primary: On-site, Secondary: Online)
A Basic Study on Interference Cancelnceller from 5G S ystems to Other Systems with the Same Frequency
Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech) RCS2022-97
 [more] RCS2022-97
pp.1-5
SAT, RCS
(Joint)
2022-08-25
10:15
Hokkaido
(Primary: On-site, Secondary: Online)
Uplink interference canceller for macro cell and small cells with cooperative control network in 3Dimension spatial HeNet construction
Takuya Kaneda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech) RCS2022-98
HetNet (Heterogeneous Network), which sets multiple small cells using the same frequency inside each macro cell, is seen... [more] RCS2022-98
pp.6-11
AP 2022-05-19
09:55
Hyogo Kobe Port Oasis
(Primary: On-site, Secondary: Online)
A Study on Prediction of K-Factor on Sky Cell for 3D Spatial Cell Construction in Mobile Communication
Teruya Fujii, Ryunosuke Masaoka (Titech) AP2022-11
The flight control of drones and the transfer of captured video data by using the mobile communication network will be e... [more] AP2022-11
pp.1-6
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