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Paper Abstract and Keywords
Presentation 2013-10-17 11:00
A Study on Downlinik/Uplink Power Control Technique for Dynamic TDD based Small Cell Systems
Hiroki Takahashi, Kazunari Yokomakura, Kimihiko Imamura (Sharp) RCS2013-146
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a downlink (DL)/uplink (UL) transmission power control (TPC) scheme for dynamic time division duplex (TDD) based small cells under multi-cell environment. In the dynamic TDD in the third generation partnership project (3GPP), an eNB (evolved node B) selects an adequate UL-DL configuration from multiple configurations according to the ratio of DL to UL data bits in each cell. However, in this case, eNB-eNB and user equipment (UE)-UE interferences could be additional interference since the transmission directions can be different among cells. Especially, eNB-eNB interference significantly degrades the UL transmission performances. Therefore, we investigate the DL TPC which is applied to the subframes which can be different directions among cells and the benefits to decrease eNB-eNB interference by this scheme. We also investigate the different UL TPC parameters are applied according to the subframe types in order to alleviate the impact of eNB-eNB interference. Computer simulation confirms that the proposed DL/UL TPC scheme can achieve 21.2 % gain at maximum for UL throughput without significant DL throughput degradation.
Keyword (in Japanese) (See Japanese page) 
(in English) LTE Release 12 / dynamic TDD / transmit power control / small cell / eIMTA / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 246, RCS2013-146, pp. 25-30, Oct. 2013.
Paper # RCS2013-146 
Date of Issue 2013-10-10 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee RCS  
Conference Date 2013-10-17 - 2013-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Sophia Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, etc. 
Paper Information
Registration To RCS 
Conference Code 2013-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Downlinik/Uplink Power Control Technique for Dynamic TDD based Small Cell Systems 
Sub Title (in English)  
Keyword(1) LTE Release 12  
Keyword(2) dynamic TDD  
Keyword(3) transmit power control  
Keyword(4) small cell  
Keyword(5) eIMTA  
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1st Author's Name Hiroki Takahashi  
1st Author's Affiliation Sharp Corporation (Sharp)
2nd Author's Name Kazunari Yokomakura  
2nd Author's Affiliation Sharp Corporation (Sharp)
3rd Author's Name Kimihiko Imamura  
3rd Author's Affiliation Sharp Corporation (Sharp)
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Speaker Author-1 
Date Time 2013-10-17 11:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2013-146 
Volume (vol) vol.113 
Number (no) no.246 
Page pp.25-30 
#Pages
Date of Issue 2013-10-10 (RCS) 


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