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| Presentation | 2016-03-02 14:05 Synchronization Performance Evaluation of Network-Listening Based Synchronization with Loop-Back Self-Interference Canceller Using Real Signal Waveform Sho Nabatame, Mitsukuni Konishi, Atsushi Nagate, Teruya Fujii (SoftBank)  RCS2015-353 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The overlaid cell structure, in which a large number of small cells are deployed in a macro-cell coverage area, is considered to be a promising approach in order to accommodate rapidly increasing mobile data traffic. In the layered cell structure, eICIC (enhanced Inter-Cell Interference Coordination) is an essential technique to avoid the interference between the macro cells and the small cells when co-channel deployment is used. eICIC conducts interference coordination in the time domain. Therefore, accurate timing synchronization is required between the macro cells and the small cells. Although a timing synchronization method using GPS are widely known, it cannot be used indoors, so network-listening based synchronization is considered to be an effective synchronization method to synchronize the transmission timing between small cells and macro cells easily in even indoor environments. In the network-listening, small cells synchronizes own transmission timing with macro cells by receiving the macro-cell downlink signals. However, the loop-back signal from the small cells itself interferes the reception of the macro-cell synchronization signal. In order to solve the problem, we proposed to mute the transmission and avoid loop-back self-interference. However, the spectral efficiency is deteriorated by muting the transmission itself. In this paper, we propose a synchronization method that cancel loop-back self-interference without muting the transmission itself. In this paper, we clarify its synchronization accuracy by computer simulations using real signal waveform. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Network-Listening Based Synchronization / Self-Interference Interference Canceller / Small-Cell / LTE-Advanced / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 472, RCS2015-353, pp. 121-126, March 2016. | |
| Paper # | RCS2015-353 | |
| Date of Issue | 2016-02-24 (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 | RCS2015-353 |
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| Conference Information | |
| Committee | RCS CCS SR SRW |
| Conference Date | 2016-03-02 - 2016-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2016-03-RCS-CCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Synchronization Performance Evaluation of Network-Listening Based Synchronization with Loop-Back Self-Interference Canceller Using Real Signal Waveform |
| Sub Title (in English) | |
| Keyword(1) | Network-Listening Based Synchronization |
| Keyword(2) | Self-Interference Interference Canceller |
| Keyword(3) | Small-Cell |
| Keyword(4) | LTE-Advanced |
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| 1st Author's Name | Sho Nabatame |
| 1st Author's Affiliation | SoftBank Corp (SoftBank) |
| 2nd Author's Name | Mitsukuni Konishi |
| 2nd Author's Affiliation | SoftBank Corp (SoftBank) |
| 3rd Author's Name | Atsushi Nagate |
| 3rd Author's Affiliation | SoftBank Corp (SoftBank) |
| 4th Author's Name | Teruya Fujii |
| 4th Author's Affiliation | SoftBank Corp (SoftBank) |
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| Speaker | Author-1 |
| Date Time | 2016-03-02 14:05:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2015-353 |
| Volume (vol) | vol.115 |
| Number (no) | no.472 |
| Page | pp.121-126 |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |
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