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Paper Abstract and Keywords
Presentation 2011-03-03 10:30
Dynamic Neighbor Cell List Management for Handover Optimization in LTE
Yoshinori Watanabe, Yasuhiko Matsunaga, Kosei Kobayashi, Hiroto Sugahara, Kojiro Hamabe (NEC Corp.) RCS2010-269
Abstract (in Japanese) (See Japanese page) 
(in English) Self-optimization of the neighbor cell list (NCL) is expected to improve handover performance and reduce the need for site surveys. 3GPP Long Term Evolution (LTE) has introduced automatic neighbor relation (ANR), which enables a base station to manage neighbor cells on the basis of measurements made by mobiles. Because the radio coverage changes during network operations, it is essential to immediately update the NCL to improve handover performance, especially when the number of measured neighbor cells exceeds the upper limit of NCL size. In this paper, we propose a dynamic NCL management scheme to enhance NCL convergence and alleviate missing neighbor problems. The proposed scheme gives higher priority to newly detected neighbor cells over existing cells and ensures fast and accurate NCL updates after radio coverage changes. According to the LTE network simulations, the proposed scheme provides 70% faster recovery of the average radio link failure rate due to the missing neighbors compared with the non-prioritized scheme. It was also confirmed that the duration of missing neighbors is reduced by 39% on average.
Keyword (in Japanese) (See Japanese page) 
(in English) Neighbor Cell List / Self-Organizing Network / Self-Optimization / LTE / ANR / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 433, RCS2010-269, pp. 127-132, March 2011.
Paper # RCS2010-269 
Date of Issue 2011-02-23 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 MoNA SR  
Conference Date 2011-03-02 - 2011-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2011-03-RCS-MoMuC-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dynamic Neighbor Cell List Management for Handover Optimization in LTE 
Sub Title (in English)  
Keyword(1) Neighbor Cell List  
Keyword(2) Self-Organizing Network  
Keyword(3) Self-Optimization  
Keyword(4) LTE  
Keyword(5) ANR  
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1st Author's Name Yoshinori Watanabe  
1st Author's Affiliation System Platforms Research Laboratories, NEC Corporation (NEC Corp.)
2nd Author's Name Yasuhiko Matsunaga  
2nd Author's Affiliation System Platforms Research Laboratories, NEC Corporation (NEC Corp.)
3rd Author's Name Kosei Kobayashi  
3rd Author's Affiliation System Platforms Research Laboratories, NEC Corporation (NEC Corp.)
4th Author's Name Hiroto Sugahara  
4th Author's Affiliation System Platforms Research Laboratories, NEC Corporation (NEC Corp.)
5th Author's Name Kojiro Hamabe  
5th Author's Affiliation System Platforms Research Laboratories, NEC Corporation (NEC Corp.)
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Speaker Author-1 
Date Time 2011-03-03 10:30:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2010-269 
Volume (vol) vol.110 
Number (no) no.433 
Page pp.127-132 
#Pages
Date of Issue 2011-02-23 (RCS) 


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