Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2024-03-14 09:00 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Fundamental Performance Evaluation of Congestion Control Algorithm for QUIC Communications in Asymmetrical Latency Environment Hikaru Kawasaki, Kazuo Ibuka, Homare Murakami, Takeshi Matsumura (NICT) RCS2023-269 |
QUIC is a user datagram protocol-enhanced scheme at the transport layer and is expected to be efficient in mobile commun... [more] |
RCS2023-269 pp.89-94 |
MIKA (3rd) |
2023-10-11 14:30 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Verified the effectiveness of the simulator on radio waves in building a local 5G communication Ryo Shoda, Ryohei Kotaka (TOPPAN), Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) |
With the spread of "local 5G," which allows companies and local governments to build 5th-generation mobile communication... [more] |
|
AP |
2023-03-16 14:35 |
Toyama |
Toyama Prefectural Civic Hall (Primary: On-site, Secondary: Online) |
A Study on Propagation Loss Measurement Scheme using CW Signal under Burst-Interference Environments Tomoaki Kumagai, Kenta Takishima, Mio Ishida (NTT-AT), Masanori Ichinose (NTT Com), Hirokazu Sawada, Homare Murakami, Takeshi Matsumura (NICT) AP2022-238 |
Radio wave propagation models are essential for designing wireless networks such as beyond 5G/6G networks. Generally, pr... [more] |
AP2022-238 pp.25-30 |
RCS, SR, SRW (Joint) |
2023-03-02 11:15 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Spectrum Sharing on Evaluation of Mixture of Synchronous TDD and Semi-synchronous TDD Local 5G in Building Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) SR2022-87 |
Local 5G offers a choice of several TDD patterns to support various types of use cases. Besides synchronous TDD, which i... [more] |
SR2022-87 pp.16-23 |
RCS, SR, SRW (Joint) |
2022-03-02 15:25 |
Online |
Online |
A Study on Spectrum Sharing of Multiple Local 5G gNBs by Different Operators in a Building Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) SR2021-97 |
Two years after the first regulation of Local 5G was institutionalized, new spectrums are added to Local 5G and some of ... [more] |
SR2021-97 pp.55-62 |
RCS |
2019-10-24 15:25 |
Kanagawa |
Yokosuka Research Park |
[Invited Lecture]
R&D on Cooperative Control Schemes Suitable for Local 5G Hikaru Kawasaki, Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Takeshi Matsumura, Fumihide Kojima (NICT) RCS2019-188 |
The fifth-generation mobile system (5G) is expected to be utilized as a communication infrastructure for a variety of em... [more] |
RCS2019-188 pp.57-62 |
SR |
2019-05-31 10:00 |
Tokyo |
Tokyo Big Sight |
[Technology Exhibit]
Empirical Throughput Evaluation for IEEE 802.11af Channel Aggregation Takeshi Matsumura, Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2019-15 |
In this study, we empirically evaluate throughput in the IEEE 802.11af CA (Channel Aggregation) mode using the previousl... [more] |
SR2019-15 pp.91-95 |
RCS, SR, SRW (Joint) |
2019-03-06 10:30 |
Kanagawa |
YRP |
Prototype of IEEE 802.11af Radio Equipment with Channel Aggregation Takeshi Matsumura, Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2018-121 |
IEEE 802.11af was standardized in 2013 as a WLAN (Wireless Local Area Network) system operated at TVWS (TV White-spaces)... [more] |
SR2018-121 pp.1-8 |
RCS, SR, SRW (Joint) |
2019-03-06 10:55 |
Kanagawa |
YRP |
An evaluation of throughput performance on base station sharing in in-door environments Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2018-122 |
Micro cell base station is one of the keys to perform an unique performance expected in 5G. Authors believe that sharing... [more] |
SR2018-122 pp.9-16 |
RCS, SR, SRW (Joint) |
2019-03-06 16:55 |
Kanagawa |
YRP |
Fast Connection to Local Spot Cell using Virtual Pre-Connection Scheme Kazuo Ibuka, Takeshi Matsumura, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) RCS2018-301 |
In the 5th generation mobile communication system (5G), the usage of higher frequency bands including millimeter-wave ba... [more] |
RCS2018-301 pp.107-112 |
RCS, SR, SRW (Joint) |
2019-03-08 10:40 |
Kanagawa |
YRP |
[Invited Lecture]
NICT's R&D toward flexible utilization of self-operated wireless systems in 5G era Kentaro Ishizu, Homare Murakami, Kazuo Ibuka, Takeshi Matsumura, Stanislav Filin, Hikaru Kawasaki, Fumihide Kojima (NICT) SRW2018-71 |
[more] |
SRW2018-71 pp.67-72 |
RCS, SIP, IT |
2019-02-01 14:20 |
Osaka |
Osaka University |
Support of private operators in 5G and B5G networks Stanislav Filin, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) IT2018-71 SIP2018-101 RCS2018-278 |
In 5G and beyond 5G networks, private operators could be a valuable addition to traditional public operators to help red... [more] |
IT2018-71 SIP2018-101 RCS2018-278 pp.209-214 |
SR |
2018-10-30 10:30 |
Overseas |
Mandarin Hotel, Bangkok, Thailand |
[Poster Presentation]
A study of network capacity improvement by introducing micro-cell operator concept Homare Murakami, Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT) SR2018-64 |
Micro-cell base stations using millimeter-wave band will be deployed in 5G systems. It may difficult to cover wide area ... [more] |
SR2018-64 pp.13-14 |
SR |
2018-10-30 10:30 |
Overseas |
Mandarin Hotel, Bangkok, Thailand |
[Poster Presentation]
Channel Aggregation Adaptation in VHF/UHF Hoang Vinh Dien, Fumihide Kojima, Kentaro Ishizu, Homare Murakami (NICT) SR2018-65 |
VHF/UHF channels are freeing up in many part of the world. Compared to conventional Wi-Fi frequencies, VHF/UHF can cover... [more] |
SR2018-65 pp.15-16 |
SR |
2018-05-25 10:00 |
Tokyo |
Tokyo big sight |
[Technology Exhibit]
Field-Test of Road Information Recognition and Transmission by Road-Side Sensors to Support Autonomous Mobility System Changwoo Pyo, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2018-15 |
[more] |
SR2018-15 pp.87-94 |
SR |
2018-01-25 13:25 |
Fukuoka |
Fukuoka univ. |
Development of Shared Base Station Supporting Millimeter Wave Bands for Network Sharing Scenario in 5G System Takeshi Matsumura, Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2017-94 |
In the 5G and beyond cellular networks, micro-cells using mmW (millimeter Wave) bands will be densely deployed to en-han... [more] |
SR2017-94 pp.1-8 |
SRW |
2017-11-14 11:15 |
Tokyo |
NICT (Koganei) |
[Invited Lecture]
Efficient Radio Access for Massive Machine-Type Communication Masafumi Moriyama, Kenichi Takizawa, Masayuki Oodo, Hayato Tezuka, Hikaru Kawasaki, Changwoo Pyo, Homare Murakami, Kentaro Ishidu, Fumihide Kojima (NICT) SRW2017-56 |
[more] |
SRW2017-56 pp.51-56 |
SR, SRW (Joint) |
2017-10-23 14:00 |
Overseas |
Grand Hotel Palatino, Rome, Italy |
[Poster Presentation]
A study on efficiency improvement of spectrum usage by base station sharing among multiple operators Homare Murakami (NICT/Univ. of Tokyo), Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT), Hiroyuki Morikawa (Univ. of Tokyo) SR2017-75 SRW2017-27 |
In order to accelerate the deployment of micro cell base stations introduced to 5G mobile system, we propose a scheme to... [more] |
SR2017-75 SRW2017-27 pp.29-30(SR), pp.33-34(SRW) |
RCS |
2017-10-19 15:30 |
Miyagi |
Tohoku Institute of Technology |
[Invited Lecture]
A Study on Shared Base Station to Realize 5G toward The Fifth Generation Mobile Communication Systems Kentaro Ishizu, Homare Murakami, Kazuo Ibuka, Stanislav Filin, Fumihide Kojima (NICT) RCS2017-182 |
[more] |
RCS2017-182 pp.81-86 |
NS, ASN, RCC, RCS, SR (Joint) |
2017-07-19 09:15 |
Hokkaido |
Hokkaido Univ. |
Network sharing and spectrum sharing scenarios for future 5G networks Stanislav Filin, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2017-25 |
This paper concentrates on the NICT contribution to the work ongoing in 3GPP SA2 and in particular on support of network... [more] |
SR2017-25 pp.9-13 |