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| Presentation | 2012-01-27 16:00 [Encouragement Talk] Statistical Estimate in Position of Coverage Holes in Minimization of Drive Tests Haruki Izumikawa, Takashi Matsunaka, Yoji Kishi (KDDI Labs.)  NS2011-175 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have been conducting research into the construction of a coverage map or a map of coverage holes for mobile access systems, such as cellular systems, by gleaning radio signal quality information, such as RSRP and RSRQ, with location information from mobile terminals. A similar effort started in 3GPP, known as MDT (Minimization of Drive Tests). Coverage hole maps could be utilized by telecom operators to optimize coverage; therefore, the accuracy of the estimated position where a coverage hole exists would affect the success or failure of the optimization. In this paper, we propose a method that statistically estimates coverage holes positions precisely. The proposed method is different from existing approaches that aimed to increase the precision of localization in one shot. Rather, the proposed method focused on how to treat a number of measured positions. Our method consists of two steps: clustering measured positions based on terminal identifications as the first step and statistical position range calculation using the clustered positions as the second. The results of a field trial indicated that the target location was successfully estimated using our method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Positioning techniques / Localization / MDT (Minimization of Drive-Tests) / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 408, NS2011-175, pp. 175-178, Jan. 2012. | |
| Paper # | NS2011-175 | |
| Date of Issue | 2012-01-19 (NS) | |
| 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 | NS2011-175 |
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| Conference Information | |
| Committee | NS |
| Conference Date | 2012-01-26 - 2012-01-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ryukyu University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network Software, Network Application, SOA/SDP, NGN, IMS, API, Grid |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2012-01-NS |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Statistical Estimate in Position of Coverage Holes in Minimization of Drive Tests |
| Sub Title (in English) | |
| Keyword(1) | Positioning techniques |
| Keyword(2) | Localization |
| Keyword(3) | MDT (Minimization of Drive-Tests) |
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| 1st Author's Name | Haruki Izumikawa |
| 1st Author's Affiliation | KDDI R&D Laboratories Inc. (KDDI Labs.) |
| 2nd Author's Name | Takashi Matsunaka |
| 2nd Author's Affiliation | KDDI R&D Laboratories Inc. (KDDI Labs.) |
| 3rd Author's Name | Yoji Kishi |
| 3rd Author's Affiliation | KDDI R&D Laboratories Inc. (KDDI Labs.) |
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| Speaker | Author-1 |
| Date Time | 2012-01-27 16:00:00 |
| Presentation Time | 20 minutes |
| Registration for | NS |
| Paper # | NS2011-175 |
| Volume (vol) | vol.111 |
| Number (no) | no.408 |
| Page | pp.175-178 |
| #Pages | 4 |
| Date of Issue | 2012-01-19 (NS) |
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