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Paper Abstract and Keywords
Presentation 2026-03-04 17:45
Wireless Communication for Ultra-high-speed Train Utilizing 5G
Yo Koide, Tomoyuki Tange (JR Central), Yuji Kawai, Yoshinori Shinohara (Magna Wireless), Satoshi Suyama (NTT DOCOMO), Yoshiaki Narusue, Hiroyuki Morikawa (University of Tokyo) RCS2025-270
Abstract (in Japanese) (See Japanese page) 
(in English) A method for applying 5G to ground-to-vehicle wireless communication in an ultra-high-speed train was investigated. Experimental verification was conducted using an actual train traveling at 500 km/h. Using antennas with directionality parallel to the train’s direction of travel at both base station and mobile station, not only can the propagation distance be extended, but countermeasures for Doppler shift can also be simplified. By using only the synchronization signal to estimate the Doppler shift amount, there is no need to add a dedicated reference signal for correction, enabling efficient communication with reduced overhead. Experimental verification using a Sub-6 GHz band 5G prototype was conducted on an actual ultra-high-speed train, confirming the effectiveness of the methodology adopted in this research. Stable throughput of approximately 50 Mbps over distances exceeding 1 km and approximately 14 Mbps over distances exceeding 6 km was achieved in both downlink and uplink directions.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultra-high-speed train / Sub-6 / 5G / Doppler shift / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 387, RCS2025-270, pp. 67-72, March 2026.
Paper # RCS2025-270 
Date of Issue 2026-02-25 (RCS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2025-270

Conference Information
Committee RCS SR SRW  
Conference Date 2026-03-04 - 2026-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo University of Science 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2026-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Wireless Communication for Ultra-high-speed Train Utilizing 5G 
Sub Title (in English)  
Keyword(1) Ultra-high-speed train  
Keyword(2) Sub-6  
Keyword(3) 5G  
Keyword(4) Doppler shift  
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1st Author's Name Yo Koide  
1st Author's Affiliation Central Japan Railway Company (JR Central)
2nd Author's Name Tomoyuki Tange  
2nd Author's Affiliation Central Japan Railway Company (JR Central)
3rd Author's Name Yuji Kawai  
3rd Author's Affiliation Magna Wireless Corporation (Magna Wireless)
4th Author's Name Yoshinori Shinohara  
4th Author's Affiliation Magna Wireless Corporation (Magna Wireless)
5th Author's Name Satoshi Suyama  
5th Author's Affiliation NTT DOCOMO, INC (NTT DOCOMO)
6th Author's Name Yoshiaki Narusue  
6th Author's Affiliation Graduate School of Engineering, The University of Tokyo (University of Tokyo)
7th Author's Name Hiroyuki Morikawa  
7th Author's Affiliation Graduate School of Engineering, The University of Tokyo (University of Tokyo)
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Speaker Author-1 
Date Time 2026-03-04 17:45:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2025-270 
Volume (vol) vol.125 
Number (no) no.387 
Page pp.67-72 
#Pages 6 
Date of Issue 2026-02-25 (RCS) 

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