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Paper Abstract and Keywords
Presentation 2016-10-20 13:00
[Invited Lecture] A Study of 4G LTE/5G Coexistence on the Same Frequency Band
Kazuhide Toda, Masaya Shibayama, Kazuya Moriwaki, Yasuhiro Suegara (KDDI R&D Labs) RCS2016-165
Abstract (in Japanese) (See Japanese page) 
(in English) It is considered that high frequency band will be allocated for 5G service. High frequency band is suitable for high throughput service within small spot because wide bandwidth can be used. However, in the case that 5G service requires wide coverage, it is not feasible to provide the large coverage area with high frequency band because of high propagation loss and high straightness of radio waves. To solve this issue, 4G/5G coexistence on low frequency band e.g., 800MHz is considered. However, in the case that 4G signal and 5G signal are adjacent on frequency domain, mutual interference may occur due to the difference of 4G/5G waveform. Therefore, an effective method is required to suppress the mutual interference.
In this paper, we focus on the interference from 5G signal to 4G signal and propose a novel interference suppression method. Through the experimental evaluations, we verified that the proposed method can suppress the interference and reduce the degradation of 4G uplink throughput compared to the method without our proposal.
Keyword (in Japanese) (See Japanese page) 
(in English) 4G / LTE / 5G / Coexistence / Interference suppression / Experimental verification / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 257, RCS2016-165, pp. 71-76, Oct. 2016.
Paper # RCS2016-165 
Date of Issue 2016-10-13 (RCS) 
ISSN Print edition: ISSN 0913-5685    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 RCS2016-165

Conference Information
Committee RCS  
Conference Date 2016-10-20 - 2016-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP (Yokosuka) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2016-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of 4G LTE/5G Coexistence on the Same Frequency Band 
Sub Title (in English)  
Keyword(1) 4G  
Keyword(2) LTE  
Keyword(3) 5G  
Keyword(4) Coexistence  
Keyword(5) Interference suppression  
Keyword(6) Experimental verification  
Keyword(7)  
Keyword(8)  
1st Author's Name Kazuhide Toda  
1st Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Labs)
2nd Author's Name Masaya Shibayama  
2nd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Labs)
3rd Author's Name Kazuya Moriwaki  
3rd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Labs)
4th Author's Name Yasuhiro Suegara  
4th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI R&D Labs)
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Speaker Author-1 
Date Time 2016-10-20 13:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2016-165 
Volume (vol) vol.116 
Number (no) no.257 
Page pp.71-76 
#Pages 6 
Date of Issue 2016-10-13 (RCS) 

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