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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, AP (Joint) |
2024-11-14 14:55 |
Ishikawa | (Ishikawa, Online) (Primary: On-site, Secondary: Online) |
A simplified evaluation on uplink coverage extension in millimeter wave communication using repeater with TTD array Masahiro Takigawa, Ryochi Kataoka, Kanno Issei (KDDI Research)  RCS2024-164 |
This paper shows the effect of uplink coverage extension in the millimeter wave band when using relay stations equipped ... [more] | RCS2024-164 pp.63-68 |
| OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 15:25 |
Kochi | (Kochi) | Throughput Improvement Effects of Low Latency and High Capacity Relay Technology in Millimeter Wave Bands for B5G/6G Ryochi Kataoka, Masahiro Takigawa, Issei Kanno (KDDI Research) CQ2024-62 |
In Japan, the 5th generation mobile communication system (5G) became commercially available in March 2020. The use of mi... [more] | CQ2024-62 pp.24-29 |
| MIKA (3rd) |
2024-10-28 15:40 |
Okayama | Okayama Convention Center (Okayama) | [Poster Presentation]
Research and development of Low Latency and High Capacity Relay Technology for millimeter wave area improvement in the B5G/6G Ryochi Kataoka, Masahiro Takigawa, Issei Kanno (KDDI Research) |
[more] | |
| RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-19 14:15 |
Hokkaido | Hokkaido Citizens Activities Promotion Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Study on Low Latency and High Capacity Relay Technology in Millimeter Wave Bands for B5G/6G Ryochi Kataoka, Masahiro Takigawa, Takeshi Oomori, Issei Kanno (KDDI Research) RCC2024-34 NS2024-69 RCS2024-113 SR2024-43 SeMI2024-38 |
In Japan, the 5th generation mobile communication system (5G) became commercially available in March 2020. The use of mi... [more] | RCC2024-34 NS2024-69 RCS2024-113 SR2024-43 SeMI2024-38 pp.63-67(RCC), pp.137-141(NS), pp.139-143(RCS), pp.72-76(SR), pp.100-104(SeMI) |
| MIKA (3rd) |
2024-06-11 14:40 |
Niigata | Niigata University Station South Campus Tokimeito Conference Room A (Niigata) | [Invited Talk]
Research and development for millimeter wave area improvement in the B5G/6G Ryochi Kataoka, Masahiro Takigawa, Takeshi Oomori, Issei Kanno, Takuya Ohto, Hiromi Matsuno, Tatsuya Nagao (KDDI Research) |
In Japan, the 5th generation mobile communication system (5G) became commercially available in March 2020. The use of mi... [more] | |
| AP, RCS (Joint) |
2023-11-16 09:30 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Kumamoto, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Relaying achieving high-capacity and low-latency data transmission in millimeter wave bands (*) Masahiro Takigawa, Ryochi Kataoka, Issei Kanno, Yoji Kishi (KDDI Research) AP2023-140 RCS2023-163 |
This paper introduces our efforts to realize high capacity and low latency data transmission. Millimeter wave bands such... [more] | AP2023-140 RCS2023-163 p.59(AP), p.63(RCS) |
| MIKA (3rd) |
2023-10-10 15:35 |
Okinawa | Okinawa Jichikaikan (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Evaluation of Processing Time for Low Latency and High Capacity Relay Technology in Millimeter Wave Bands Ryochi Kataoka, Masahiro Takigawa, Takeshi Oomori, Takeo Ohseki, Taishi Watanabe, Issei Kanno (KDDI Research) |
[more] | |
| RCS, NS (Joint) |
2022-12-16 15:50 |
Aichi | Nagoya Institute of Technology, and Online (Aichi, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Standardization of NR network-controlled repeater in 3GPP and research on coverage expansion techniques in millimeter-wave bands Takeo Ohseki, Ryochi Kataoka, Masahiro Takigawa, Taishi Watanabe, Yoshiaki Amano (KDDI Research) NS2022-149 RCS2022-207 |
In the access links of mobile communications system, RF repeaters and relaying nodes have been considered as a means to ... [more] | NS2022-149 RCS2022-207 p.87(NS), p.98(RCS) |
| RCS, AP, UWT (Joint) |
2022-11-17 10:20 |
Fukuoka | Kyushu University, and Online (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
A study on relaying achieving low latency and high capacity in the millimeter wave bands Masahiro Takigawa, Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano (KDDI Research, Inc.) RCS2022-176 |
This paper evaluates the link-level throughput characteristics when Line-of-Sight MIMO(LoS-MIMO) is applied between a re... [more] | RCS2022-176 pp.124-129 |
| MIKA (3rd) |
2022-10-13 11:10 |
Niigata | Niigata Citizens Plaza (Niigata, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Basic Performance Evaluation of Low Latency and High Capacity Relay Technology in the Millimeter Wave Band Ryochi Kataoka, Masahiro Takigawa, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano (KDDI Research) |
[more] | |
| RCS, SR, SRW (Joint) |
2022-03-04 15:20 |
Online | Online (Online) | Evaluation of the optimal position of relay station equipped with frequency converter in high frequency band Masahiro Takigawa, Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Kosuke Yamazaki, Yoji Kishi (KDDI Research) RCS2021-291 |
In order to realize the integration of physical and cyber space (CPS: Cyber-Physical System), real-time, high-speed and ... [more] | RCS2021-291 pp.195-200 |
| MIKA (3rd) |
2021-10-29 10:30 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
The Basic Study of Low Latency Relaying Method for Uplink in the High Frequency Band Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Kosuke Yamazaki, Yoji Kishi (KDDI Research) |
[more] | |
| CQ (2nd) |
2021-01-21 17:00 |
Online | Online (Online) | [Special Talk]
Motivation for obtaining a degree and research activities so far Ryochi Kataoka (KDDI Research) |
[more] | |
| NS, RCS (Joint) |
2020-12-18 10:50 |
Online | Online (Online) | Spatially and Spectrally Distributed Massive MIMO toward Beyond 5G systems Kentaro Nishimori (KDDI Research/Niigata Univ.), Takahiro Matsuda (KDDI Research/Tokyo Metropolitan Univ.), Ryochi Kataoka, Takeo Ohzeki, Daishi Watanabe, Kosuke Yamazaki (KDDI Research) RCS2020-145 |
[more] | RCS2020-145 pp.60-65 |
| MIKA (3rd) |
2020-10-09 10:15 |
Niigata | (Niigata, Online) (Primary: On-site, Secondary: Online) |
Evaluation report of Interference Mitigation Method for Dynamic Spectrum Sharing Ryochi Kataoka, Issei Kanno, Naoto Tsumachi (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research) |
Mobile communication traffic is increasing yearly due to the spread of mobile broadband services, and the demand will fu... [more] | |
| RISING (2nd) |
2019-11-27 13:55 |
Tokyo | Fukutake Learning Theater, Hongo Campus, Univ. Tokyo (Tokyo) | [Poster Presentation]
[MIKA/RISING Collaboration]The study of interference mitigation method for dynamic spectrum sharing Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research) |
[more] | |
| RCS | 2019-10-24 16:15 |
Kanagawa | Yokosuka Research Park (Kanagawa) | [Invited Lecture]
The study of interference mitigation method for dynamic spectrum sharing between different systems Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research) RCS2019-190 |
[more] | RCS2019-190 p.69 |
| MIKA (2nd) |
2019-10-04 10:15 |
Hokkaido | Hokkaido Univ. (Hokkaido) | [Poster Presentation]
The study of interference mitigation method for dynamic spectrum sharing Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research) |
[more] | |
| SR | 2018-05-24 11:30 |
Tokyo | Tokyo big sight (Tokyo) | A Study on Reduction Method on Radio Resource Control Signal Amount of D2D Relay Communication Ryochi Kataoka, Koichiro Kitagawa, Bingxuan Zhao, Katsuo Yunoki, Hiroyuki Shinbo, Akira Yamaguchi, Kazunori Takeuchi (KDDI Research) SR2018-2 |
In 5G systems, the utilization of high frequency band that can use a wide bandwidth is expected. Generally, there is a p... [more] | SR2018-2 pp.7-12 |
| RCS | 2018-04-23 13:35 |
Yamaguchi | Hotel New Tanaka, Yuda Onsen (Yamaguchi) | Evaluation of Decreasing Signaling Messages of D2D Communication in 5G Systems at Moving Environments Bingxuan Zhao, Koichiro Kitagawa, Takashi Fujimoto, Ryochi Kataoka, Katsuo Yunoki, Hiroyuki Shinbo (KDDI Research) RCS2018-8 |
The fifth Generation (5G) system utilizing millimeter wave (mmW) bands suffers from the problem of uncovered areas due t... [more] | RCS2018-8 pp.43-48 |
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