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| Presentation | 2013-03-08 09:40 QoE-based Log Collection in Minimization of Drive Tests Haruki Izumikawa (KDDI Labs.), Ryuichi Yasunaga, Katsuhiro Kujirai, Shigeyuki Terachi, Yoshikazu Shirai (KDDI Engineering), Nao Kobayashi, Keizo Sugiyama (KDDI Labs.)  NS2012-227 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have been conducting research into the creation of a coverage map or a map of coverage holes for mobile access systems, such as cellular systems, by collecting coverage information that includes radio signal information and location information from mobile terminals. A similar study started in 3GPP, known as MDT (Minimization of Drive Tests). In such studies, poorer radio measurements than a pre-defined threshold are one of triggers to collect coverage information. However, it is not sufficient to collect this information based only on the radio measurements criteria since it would be hard to detect an event of quality degradation that is caused, for example, by mobile traffic congestion, which is also a target event that the coverage map should include and against which telecom operators take necessary measures such as certain parameter tunings at base stations and deployment of new base stations. In this paper, we propose a method in which a mobile terminal records traffic behavior, such as an increasing rate of received traffic volume and the ratio of downlink packets to uplink packets, per application used, and deduces the QoE (Quality of Experience) of a new communication session based on the recorded traffic behaviors. The information collection trigger based on the proposed method would enable operators to gather information in the event of user experience deterioration, for instance, slower web response than usual. We executed preliminary evaluations in which two research participants used smartphones where the proposed method was implemented, and found that the method correctly judged sessions of poor QoE as being of poor qualities in 75 percent probability. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MDT (Minimization of Drive-Tests) / QoE / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 463, NS2012-227, pp. 361-365, March 2013. | |
| Paper # | NS2012-227 | |
| Date of Issue | 2013-02-28 (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 | NS2012-227 |
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| Conference Information | |
| Committee | NS IN |
| Conference Date | 2013-03-07 - 2013-03-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Zanpamisaki Royal Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2013-03-NS-IN |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | QoE-based Log Collection in Minimization of Drive Tests |
| Sub Title (in English) | |
| Keyword(1) | MDT (Minimization of Drive-Tests) |
| Keyword(2) | QoE |
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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 | Ryuichi Yasunaga |
| 2nd Author's Affiliation | KDDI Engineering Corporation (KDDI Engineering) |
| 3rd Author's Name | Katsuhiro Kujirai |
| 3rd Author's Affiliation | KDDI Engineering Corporation (KDDI Engineering) |
| 4th Author's Name | Shigeyuki Terachi |
| 4th Author's Affiliation | KDDI Engineering Corporation (KDDI Engineering) |
| 5th Author's Name | Yoshikazu Shirai |
| 5th Author's Affiliation | KDDI Engineering Corporation (KDDI Engineering) |
| 6th Author's Name | Nao Kobayashi |
| 6th Author's Affiliation | KDDI R&D Laboratories Inc. (KDDI Labs.) |
| 7th Author's Name | Keizo Sugiyama |
| 7th Author's Affiliation | KDDI R&D Laboratories Inc. (KDDI Labs.) |
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| Speaker | Author-1 |
| Date Time | 2013-03-08 09:40:00 |
| Presentation Time | 20 minutes |
| Registration for | NS |
| Paper # | NS2012-227 |
| Volume (vol) | vol.112 |
| Number (no) | no.463 |
| Page | pp.361-365 |
| #Pages | 5 |
| Date of Issue | 2013-02-28 (NS) |
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