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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SIP, IT | 2019-02-01 13:55 |
Osaka | Osaka University | Outdoor Experimental Trial on SU-MIMO Transmission for High SHF Wide-band Massive MIMO in 5G Manabu Sakai, Kenji Nakagawa, Kenichiro Kamohara, Hiroki Iura, Naofumi Iwayama, Kazuaki Ishioka, Masayuki Yamamoto, Akihiro Okazaki (MELCO), Nobuhide Nonaka, Satoshi Suyama, Jun Mashino (NTT DOCOMO), Atsushi Okamura (MELCO), Yukihiko Okumura (NTT DOCOMO)  IT2018-70 SIP2018-100 RCS2018-277 |
This paper reports the outdoor experimental trial on SU-MIMO transmission with 16 stream spatially–multiplexing using hy... [more] | IT2018-70 SIP2018-100 RCS2018-277 pp.203-207 |
| MW | 2018-11-16 13:15 |
Nagasaki | Fukue Cultural Hall | [Special Talk]
Report on 2018 IEEE MTT-S International Microwave Symposium Takashi Shimizu (Utsunomiya Univ.), Ryo Ishikawa (UEC), Tetsuya Ueda (Kyoto Inst. of Tech.), Masataka Ohira (Saitama Univ.), Hiroshi Okazaki (NTT DOCOMO), Yuji Komatsuzaki (Mitsubishi Electric Corp.), Tamura Masaya (TUT) MW2018-110 |
[more] | MW2018-110 pp.95-102 |
| RCS | 2018-10-19 11:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Lecture]
High quality mobile video transmission in 5G wireless network systems Hiroaki Asano, Takumi Higuchi, Masaaki Yoshino, Tetsuro Morimoto, Hideki Shingu, Takeshi Miyagoshi (Panasonic), Yosifumi Morihiro, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-168 |
Recently research and development for realizing enhanced mobile broadband, massive device and mission critical IoT are p... [more] | RCS2018-168 pp.95-100 |
| SP, IPSJ-SLP (Joint) |
2018-07-26 14:30 |
Shizuoka | Sago-Royal-Hotel (Hamamatsu) | [Invited Talk]
Docomo AI Agent: Open Partner Initiative
-- Project SEBASTIEN -- Takanobu Oba, Takashi Yoshikawa (Docomo), Takaaki Fukutomi, Kiyoaki Matsui, Yusuke Ijima (NTT) SP2018-17 |
[more] | SP2018-17 pp.7-8 |
| AP, SANE, SAT (Joint) |
2018-07-20 16:05 |
Hokkaido | Hokkaido Univ. | The propagation model for Massive MIMO at 20 GHz band. Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Koshoro Kitao, Minoru Inomata, Tetsuro Imai (NTT DOCOMO) AP2018-65 SAT2018-26 |
Massive MIMO transmission, whose number of antennas at the base station (BS) is much larger than the number of user term... [more] | AP2018-65 SAT2018-26 pp.137-142(AP), pp.89-94(SAT) |
| RCS | 2018-06-20 14:30 |
Nagasaki | Nagasaki University | Interference Tolerance for Fiber-optic Inband Relaying with Simultaneous Transmission Hiroki Utatsu (Kogakuin Univ.), Jun Mashino, Satoshi Suyama (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2018-41 |
Relaying is a key technology to improve cell-edge performance and/or provide wider radio coverage. We have proposed fibe... [more] | RCS2018-41 pp.37-42 |
| RCS, SR, SRW (Joint) |
2018-03-01 10:50 |
Kanagawa | YRP | Performance Evaluation of Channel Estimation Algorithm for High-SHF-Band Massive MIMO by Using Real Propagation Channel Data Hiroyuki Miyazaki, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT docomo) RCS2017-351 |
[more] | RCS2017-351 pp.197-202 |
| RCS, SR, SRW (Joint) |
2018-03-01 11:50 |
Kanagawa | YRP | [Technology Exhibit]
NTT DOCOMO's 5G Trials for 5G Realization Hiroyuki Miyazaki, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT docomo) RCS2017-358 SR2017-124 SRW2017-78 |
Recently, mobile data traffic is rapidly growing due to the spread of smartphone/tablets and various mobile application ... [more] | RCS2017-358 SR2017-124 SRW2017-78 p.225(RCS), p.65(SR), p.51(SRW) |
| ED, MW | 2018-01-26 11:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Special Talk]
Briefing Report on European Microwave Week 2017 Ryo Ishikawa (UEC), Shuhei Amakawa (Hiroshima Univ.), Chen Chun-Pin (Kanagawa Univ.), Tamio Kawaguchi (Toshiba), Hiroshi Okazaki (NTT DOCOMO) ED2017-100 MW2017-169 |
The Microwave Week 2017, comprising the European Microwave Conference (EuMC), European Rader Conference(EuRAD), and Euro... [more] | ED2017-100 MW2017-169 pp.35-40 |
| AP, RCS (Joint) |
2017-11-08 17:10 |
Fukuoka | Fukuoka University | The effect of 3D beamforming on backhaul link in relaying networks Ryota Nakao (Kogakuin Univ.), Jun Mashino, Satoshi Suyama (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2017-219 |
Relaying is a key technology used to improve cell-edge user throughput and/or provide wider coverage. Three-dimensional ... [more] | RCS2017-219 pp.81-86 |
| AP, MW (Joint) |
2017-09-22 10:10 |
Saitama | Saitama University | Outdoor Experiment Evaluation of Analog-Digital Hybrid Massive MIMO Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai, Koshiro Kitao (NTT DOCOMO) AP2017-92 |
Massive MIMO transmission whose number of antennas is much larger than the number of user terminals, has been attracted ... [more] | AP2017-92 pp.25-30 |
| AP, SAT, SANE (Joint) |
2017-07-28 10:15 |
Aichi | Nagoya Institute of Technology | Path Loss Frequency Dependency of 2-66 GHz in an Urban Macro Cell Environment Motoharu Sasaki, Mitsuki Nakamura, Minoru Inomata, Yasushi Takatori (NTT), Koshiro Kitao, Tetsuro Imai (NTT DoCoMo) AP2017-60 |
This paper presents a frequency dependency of path loss in an urban macro (UMa) cell environment on the basis of the mea... [more] | AP2017-60 pp.81-86 |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Proposal of new propagation based on measured parameters in massive MIMO Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Koshoro Kitao, Tetsuro Imai (NTT DOCOMO) |
Massive MIMO transmission has attracted much attention as one of key technologies in next-generation mobile communicatio... [more] | |
| AP | 2017-05-18 14:00 |
Miyazaki | Hotel MERIEGES | Proposal on the channel model for massive MIMO based on measured propagation channel Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai, Koshiro Kitao (NTT DOCOMO) AP2017-31 |
[more] | AP2017-31 pp.49-54 |
| RCS, IN, NV (Joint) |
2017-05-11 09:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Performance Evaluation of High-SHF-Band Massive MIMO with Hybrid Beamforming by Using Real Propagation Channel Data Hiroyuki Miyazaki, Kei Satoh, Satoshi Suyama, Jun Mashino (NTT DOCOMO), Kenji Nakagawa, Hideo Umehara, Akihiro Okazaki (Mitsubishi Electric), Yukihiko Okumura (NTT DOCOMO) RCS2017-31 |
The 5th generation mobile communication system (5G) will introduce the use of higher frequency band with wider bandwidth... [more] | RCS2017-31 pp.7-12 |
| EMCJ, WPT, PEM (Joint) |
2016-11-24 14:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Exposure assessment close to antennas above 6 GHz Teruo Onishi, Takahiro Iyama (NTT DOCOMO), Akimasa Hirata (NIT) EMCJ2016-87 |
Exposure assessment close to 1 and 25 elements patch antennas above 6 GHz is investigated using an electromagnetic simul... [more] | EMCJ2016-87 pp.19-22 |
| MW | 2016-11-17 16:00 |
Saga | Saga Univ. | [Special Talk]
Report on 2016 IEEE MTT-S International Microwave Symposium Masataka Ohira (Saitama Univ.), Hiroshi Okazaki (NTT DOCOMO), Hiroyuki Kayano (Toshiba), Masaru Sato (Fujitsu Lab.), Takashi Shimizu (Utsunomiya Univ.), Hiroshi Hamada (NTT) MW2016-125 |
This is a report on 2016 IEEE MTT-S International Microwave Symposium (IMS2016) in San Francisco, CA, USA, on May 22-27,... [more] | MW2016-125 pp.49-55 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-04 14:30 |
Okinawa | Okinawa Prefectural Museum & Art Museum | [Invited Lecture]
Transmit Performance of Analog Beamforming MIMO System in Practical Outdoor Environment using High Frequency Band Hiroki Iura, Kenji Nakagawa, Uchida Shigeru, Akinori Taira, Akihiro Okazaki (Mitsubishi Electric), Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura (NTT DOCOMO), Otsushi Okamrua (Mitsubishi Electric) AP2015-116 RCS2015-201 |
(To be available after the conference date) [more] | AP2015-116 RCS2015-201 pp.35-40(AP), pp.67-72(RCS) |
| OFT, PEM (Joint) |
2015-05-21 15:00 |
Ishikawa | [Invited Talk]
Towards 5th generation mobile communcation
-- Current trend of wireless access techology and DOCOMO's activities -- Yukihiko Okumura (NTT DOCOMO) |
(Advance abstract in Japanese is available) [more] | ||
| EMCJ | 2015-04-28 13:05 |
Tochigi | Utsunomiya Univ. | Measurement System Validation for Specific Absorption Rate of Mobile Wireless Device
-- Design of the Reference Antenna for the System Validation -- Lira Hamada, Soichi Watanabe (NICT), Jianqing Wang (NIT), Masaharu Takahashi (Chiba Univ.), Yoshitsugu Kamimura (Utsunomiya Univ.), Nozomu Ishii (Niigata Univ.), Teruo Onishi (NTT DOCOMO) EMCJ2015-1 |
The SAR reference values by standard dipole antennas for the performance validation of the measurement equipment are des... [more] | EMCJ2015-1 pp.1-4 |
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