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Paper Abstract and Keywords
Presentation 2025-04-17 10:00
Evaluation of Transmission Performance of Mid-band Massive MIMO in Yokosuka City Urban Area by Computer simulation
Yuta Hayashi, Takahiro Tomie, Satoshi Suyama, Dan Mohri, Yuyuan Chang, Huilling Jiang (NTT DOCOMO) RCS2025-1
Abstract (in Japanese) (See Japanese page) 
(in English) In the 6th generation mobile communication system（6G）, studies are being conducted to use the 100 Gbps or more ultra-high speed and large capacity communications by utilizing the sub-terahertz band, which is a frequency band above 100 GHz. In addition, it is considered that the use of the midband, which ranges from 7 GHz to 24 GHz, will be used for coverage purposes. Furthermore, considering implementation costs and stream interference, the introduction of hybrid beamforming has been proposed to compensate for the significant path loss characteristics of high frequencies. Previously, we have evaluated the transmission characteristics of the midband prior to its usage in practice. This report uses the color image method of wireless propagation analysis to obtain channel information about Yokosuka city and calculates throughput at various locations using this information. We then evaluate the coverage performance of the midband and propose an optimal antenna configuration for the purpose of ensuring coverage, taking into account the number of antenna elements and digital ports.
Keyword (in Japanese) (See Japanese page) 
(in English) 6G / Mid-band / Centimeter wave / FR3 / Massive MIMO / Hybrid beamforming / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 5, RCS2025-1, pp. 1-6, April 2025.
Paper # RCS2025-1 
Date of Issue 2025-04-10 (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 RCS2025-1

Conference Information
Committee RCS  
Conference Date 2025-04-17 - 2025-04-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Takayama-Shimin-Bunka-Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2025-04-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Transmission Performance of Mid-band Massive MIMO in Yokosuka City Urban Area by Computer simulation 
Sub Title (in English)  
Keyword(1) 6G  
Keyword(2) Mid-band  
Keyword(3) Centimeter wave  
Keyword(4) FR3  
Keyword(5) Massive MIMO  
Keyword(6) Hybrid beamforming  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuta Hayashi  
1st Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
2nd Author's Name Takahiro Tomie  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Satoshi Suyama  
3rd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
4th Author's Name Dan Mohri  
4th Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
5th Author's Name Yuyuan Chang  
5th Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
6th Author's Name Huilling Jiang  
6th Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
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Speaker Author-1 
Date Time 2025-04-17 10:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2025-1 
Volume (vol) vol.125 
Number (no) no.5 
Page pp.1-6 
#Pages 6 
Date of Issue 2025-04-10 (RCS) 

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