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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SR, SRW (Joint) |
2021-03-03 11:40 |
Online | Online | Detection Probability of PRACH Preamble for NR Radio Interface in 3GPP TDL Channel Models Kosuke Kamata, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO)  RCS2020-207 |
This paper presents preamble detection probability of Physical Random Access Channel (PRACH) with long sequence based on... [more] | RCS2020-207 pp.25-30 |
| RCS, SR, SRW (Joint) |
2021-03-03 14:25 |
Online | Online | [Invited Lecture]
Outlook for 6G Wireless Technology Yoshihisa Kishiyama (NTT DOCOMO) RCS2020-216 SR2020-63 SRW2020-54 |
In Japan, the commercial service of 5G was started in March, 2020, and the opportunity of the examination on the communi... [more] | RCS2020-216 SR2020-63 SRW2020-54 p.74(RCS), p.15(SR), p.15(SRW) |
| NS, RCS (Joint) |
2020-12-18 11:15 |
Online | Online | A Study of 6G Radio Access Technologies for Achieving 100 Gbps Data Rate by Extreme Wideband Transmission Using Higher Frequency Bands Satoshi Suyama, Tatsuki Okuyama, Yoshihisa Kishiyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO) RCS2020-146 |
In sixth-generation (6G) mobile communication system, it is expected that a extreme hgih data rate coomunication with a ... [more] | RCS2020-146 pp.66-71 |
| NS, RCS (Joint) |
2020-12-18 13:25 |
Online | Online | [Invited Lecture]
Distributed Antenna Systemes using High-Frequency-Band targeting 6G Wireless Networks Daisei Uchida, Tatsuhiko Iwakuni, Naoki Kita, Takeshi Onizawa (NTT), Yoshihisa Kishiyama, Satoshi Suyama, Satoshi Nagata, Takahiro Asai (docomo) NS2020-101 RCS2020-148 |
High-Speed and broadband network transformation is needed for multi-points collecting sensing data and distributing movi... [more] | NS2020-101 RCS2020-148 pp.73-78 |
| SRW | 2020-08-25 14:40 |
Online | Online | [Invited Talk]
DOCOMO's Views and Recent Activities on 5G Evolution & 6G Satoshi Suyama, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO) SRW2020-24 |
A commercial service in fifth-generation (5G) mobile communication system launched in March 2020 at last by using 3.7 GH... [more] | SRW2020-24 p.71 |
| SAT, RCS (Joint) |
2020-08-20 14:55 |
Online | Online | [Invited Lecture]
Extreme Coverage Extension for 6G
-- Sky, Sea, and Space -- Yoshihisa Kishiyama (NTT DOCOMO) SAT2020-17 RCS2020-81 |
[more] | SAT2020-17 RCS2020-81 p.43(SAT), p.19(RCS) |
| SR, NS, SeMI, RCC, RCS (Joint) |
2020-07-09 13:25 |
Online | Online | Considerations on Accuracy Improvement in DOA Estimation Using Deep Learning Yuya Kase, Takanori Sato, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5 |
Direction of arrival (DOA) estimation of radio waves using a various types of array antennas are generally classified in... [more] | RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5 pp.19-24(RCC), pp.19-24(NS), pp.61-66(RCS), pp.25-30(SR), pp.13-18(SeMI) |
| RCS | 2020-06-24 15:20 |
Online | Online | Interleaver-Linked Receiver Beamforming for IDMA-Based Random Access in TDD System Yotaro Murakami (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-28 |
This paper proposes a novel interleaver-linked receiver beamforming in time division duplex (TDD)-interleave division mu... [more] | RCS2020-28 pp.31-36 |
| RCS | 2020-06-24 15:45 |
Online | Online | Interleaver-Linked Receiver Beamforming with Transmitter Channel Equalization in TDD-IDMA-Based Random Access Yuto Muroki (Tokyo Univ. of Science), Yoshihisa KIshiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-29 |
This paper proposes a transmission/reception protocol that combines our previously reported interleaver-linked receiver ... [more] | RCS2020-29 pp.37-42 |
| NS | 2020-04-17 10:20 |
Online | Online | [Encouragement Talk]
A Reliable Cooperative Operation Platform based on Mobile Edge Computing Qinghao Liu, Takafumi Morita (UTokyo), Yoshihisa Kishiyama, Kensuke Miyachi, Takahiro Asai (NTT Docomo, INC.), Ping Du, Akihiro Nakao (UTokyo) NS2020-5 |
In recent years, there has been much research about intelligent traffic system to improve the safety and efficiency. Coo... [more] | NS2020-5 pp.43-49 |
| RCS, SR, SRW (Joint) |
2020-03-04 12:35 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
[Technology Exhibit]
DOCOMO's Activities Looking to 5G Evolution and 6G Tatsuki Okuyama, Daisuke Kitayama, Nobuhide Nonaka, Satoshi Suyama, Yoshihisa Kishiyama, Yukihiko Okumura, Takahiro Asai (NTT DOCOMO) RCS2019-330 SR2019-114 SRW2019-60 |
(To be available after the conference date) [more] | RCS2019-330 SR2019-114 SRW2019-60 p.55(RCS), p.7(SR), p.7(SRW) |
| RCS, SR, SRW (Joint) |
2020-03-05 13:15 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
[Invited Lecture]
5G evolution and 6G Yoshihisa Kishiyama, Takehiro Nakamura (NTT DOCOMO) RCS2019-357 |
[more] | RCS2019-357 pp.201-206 |
| IT, SIP, RCS | 2020-01-24 10:20 |
Hiroshima | Hiroshima City Youth Center | BLER Performance of OFDM Using Faster-than-Nyquist Combined with Low-Rate Turbo Code Tsubasa Shobudani, Mamoru Sawahashi (Tokyo City Univ), Kenichi Higuchi (Tokyo University of Science), Yoshihisa Kishiyama (NTT DOCOMO) IT2019-62 SIP2019-75 RCS2019-292 |
[more] | IT2019-62 SIP2019-75 RCS2019-292 pp.149-154 |
| SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-11 13:55 |
Osaka | I-Site Nanba（Osaka） | A Study on Close DOA Estimation with Deep Learning Yuya Kase, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48 |
Direction of arrival (DOA) estimation of radio waves is applicable to localization of users in mobile communication and ... [more] | RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48 pp.133-138(RCC), pp.159-164(NS), pp.155-160(RCS), pp.165-170(SR), pp.147-152(SeMI) |
| OCS, PN, NS (Joint) |
2019-06-21 14:10 |
Iwate | MALIOS（Morioka） | Coordinated Operation based on 5G Network and Mobile Edge Computing Qinghao Liu (UTokyo), Yoshihisa Kishiyama (NTT Docomo, INC.), Kengo Sasaki, Akihiro Nakao (UTokyo) NS2019-41 |
In recent years, there has been much research on remote control using ultra low latency based on MEC(Mobile/Multiaccess ... [more] | NS2019-41 pp.35-40 |
| RCS | 2019-06-19 09:30 |
Okinawa | Miyakojima Hirara Port Terminal Building | Performance of Physical Channel Multiplexing Using Symbol Repetition in Every Time Slot for Full Duplex Kazuki Yoshida, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) RCS2019-37 |
In full duplex (FD), which improves spectrum efficiency and achieves flexible resource assignment between the uplink and... [more] | RCS2019-37 pp.1-6 |
| RCS | 2019-06-19 09:40 |
Okinawa | Miyakojima Hirara Port Terminal Building | BLER Performance of OFDM with Faster-than-Nyquist Using TDM Based RS Multiplexing Tsubasa Shobudani, Mitsutaka Anan, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) RCS2019-38 |
This paper presents the average block error rate (BLER) performance using time division multiplexing (TDM) based referen... [more] | RCS2019-38 pp.7-12 |
| RCS | 2019-06-20 09:40 |
Okinawa | Miyakojima Hirara Port Terminal Building | Investigation on Efficient Construction Scheme of Peak Cancellation Signals in Complexity-Reduced PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals Taku Suzuki, Mikihito Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-64 |
In this paper, we investigate efficient construction schemes of the peak cancellation (PC) signals in the complexity-red... [more] | RCS2019-64 pp.161-167 |
| RCS | 2019-06-20 09:50 |
Okinawa | Miyakojima Hirara Port Terminal Building | Low Latency Hybrid ARQ Method Using Early Retransmission Before Channel Decoding with Multistage Decision Kentarou Taniyama (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-65 |
This paper extends our previously reported low latency hybrid automatic repeat request (HARQ) using early retransmission... [more] | RCS2019-65 pp.169-174 |
| RCS | 2019-06-20 10:00 |
Okinawa | Miyakojima Hirara Port Terminal Building | Low Latency HARQ Method Using Early Retransmission Before Channel Decoding Based on Superposition Coding Koka Miura (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-66 |
This paper proposes a superposition coding-based early retransmission scheme in our previously reported low latency hybr... [more] | RCS2019-66 pp.175-180 |
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