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Paper Abstract and Keywords
Presentation 2026-03-04 16:55
Comparison of Transmission Characteristics Between Sub-6 GHz-Band 5G Experiments and Digital-Twin Simulations in Indoor Factory
Mikito Ito, Satoshi Suyama, Huiling Jiang, Yuyuan Chang (NTT DOCOMO), Shinji Kobayashi, Hiroaki Yamada (OMRON), Goro Ikeda (Nokia) RCS2025-268
Abstract (in Japanese) (See Japanese page) 
(in English) In the era of 6G that is the next-generation system of the 5th-generation mobile communication system (5G), cyber-physical system (CPS) which creates a new value by reproducing the physical space as digital twin in a cyber space, performing optimization over the limitation of the physical space, and feeding back to the physical space is noticed. While high communication performance is required for 6G as a transmission medium connecting the physical space and the cyber space, a higher quality network can be realized by reproducing the 6G network itself by digital twin and carrying out optimization utilizing it. The authors have developed a 5G/6G simulator that reproduces a specific environment as digital twin in cyber space by using point cloud data and that evaluates and visualizes radio propagation characteristics and wireless transmission performances by using the digital twin. We have already clarified the 5G propagation characteristics in an actual manufacturing factory. We have also measured and evaluated the 5G transmission performances in the factory by using experimental equipment. In this report, the 3.7 GHz band 5G transmission experiment conducted at the Omron Kusatsu Factory is reproduced using a digital-twin simulator, and the simulator’s performance is evaluated by comparison with the measured results.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / CPS / digital twin / point cloud data / simulation / experiment / indoor factory / sub-6 GHz  
Reference Info. IEICE Tech. Rep., vol. 125, no. 387, RCS2025-268, pp. 55-60, March 2026.
Paper # RCS2025-268 
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 RCS2025-268

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) Comparison of Transmission Characteristics Between Sub-6 GHz-Band 5G Experiments and Digital-Twin Simulations in Indoor Factory 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) CPS  
Keyword(3) digital twin  
Keyword(4) point cloud data  
Keyword(5) simulation  
Keyword(6) experiment  
Keyword(7) indoor factory  
Keyword(8) sub-6 GHz  
1st Author's Name Mikito Ito  
1st Author's Affiliation NTT DOCOMO,INC. (NTT DOCOMO)
2nd Author's Name Satoshi Suyama  
2nd Author's Affiliation NTT DOCOMO,INC. (NTT DOCOMO)
3rd Author's Name Huiling Jiang  
3rd Author's Affiliation NTT DOCOMO,INC. (NTT DOCOMO)
4th Author's Name Yuyuan Chang  
4th Author's Affiliation NTT DOCOMO,INC. (NTT DOCOMO)
5th Author's Name Shinji Kobayashi  
5th Author's Affiliation OMRON Corp. (OMRON)
6th Author's Name Hiroaki Yamada  
6th Author's Affiliation OMRON Corp. (OMRON)
7th Author's Name Goro Ikeda  
7th Author's Affiliation Nokia Solutions and Networks Japan G.K. (Nokia)
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Speaker Author-1 
Date Time 2026-03-04 16:55:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2025-268 
Volume (vol) vol.125 
Number (no) no.387 
Page pp.55-60 
#Pages 6 
Date of Issue 2026-02-25 (RCS) 

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