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Paper Abstract and Keywords
Presentation 2020-08-25 14:40
[Invited Talk] DOCOMO's Views and Recent Activities on 5G Evolution & 6G
Satoshi Suyama, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO) SRW2020-24
Abstract (in Japanese) (See Japanese page) 
(in English) A commercial service in fifth-generation (5G) mobile communication system launched in March 2020 at last by using 3.7 GHz, 4.5 GHz, and 28 GHz bands in Japan. The higher data-rate can be provided in especially the 28 GHz band where the wider bandwidth of 400 MHz is employed compared to the sub 6 GHz bands. On the other hand, towards further enhancement of 5G, that is to say, 5G evolution and 6G that aims to provide a commercial service in almost 2030, a variety of technical discussions have already been started domestically and internationally. In Japan, The Ministry of Internal Affairs and Communications (MIC) has been holding “Beyond 5G Promotion Strategy Roundtable” and the recommendations from the roundtable and MIC’s “Beyond 5G Promotion Strategy -Roadmap towards 6G-” has been released. In addition, DOCOMO has already released a white paper that describes (i) directions of evolution, (ii) requirements and use cases, and (iii) technological enhancement and study areas on 5G evolution and 6G in January, which has been updated in July 2020. In this invited talk, as DOCOMO’s views on 5G evolution and 6G, we introduce the outline of the white paper and DOCOMO’s recent activities in addition to technical issues for exploiting higher frequency bands such as millimeter-wave and terahertz bands.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / 5G evolution / 6G / higher frequency band / radio technology / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 138, SRW2020-24, pp. 71-71, Aug. 2020.
Paper # SRW2020-24 
Date of Issue 2020-08-17 (SRW) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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)
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Conference Information
Committee SRW  
Conference Date 2020-08-24 - 2020-08-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Video Conf. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) WLAN, WPAN, Ad-hoc, mmWave, etc. 
Paper Information
Registration To SRW 
Conference Code 2020-08-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) DOCOMO's Views and Recent Activities on 5G Evolution & 6G 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) 5G evolution  
Keyword(3) 6G  
Keyword(4) higher frequency band  
Keyword(5) radio technology  
1st Author's Name Satoshi Suyama  
1st Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
2nd Author's Name Yoshihisa Kishiyama  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Takahiro Asai  
3rd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
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Date Time 2020-08-25 14:40:00 
Presentation Time 50 
Registration for SRW 
Paper # IEICE-SRW2020-24 
Volume (vol) IEICE-120 
Number (no) no.138 
Page p.71 
#Pages IEICE-1 
Date of Issue IEICE-SRW-2020-08-17 

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