| Presentation | 2016-03-02 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, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Network-Listening Based Synchronization / Self-Interference Interference Canceller / Small-Cell / LTE-Advanced |
| Paper # | RCS2015-353 |
| Date of Issue | 2016-02-24 (RCS) |
| Conference Information | |
| Committee | RCS / CCS / SR / SRW |
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| Conference Date | 2016/3/2(3days) |
| 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 |
| Chair | Makoto Taromaru(Fukuoka Univ.) / Hiroo Sekiya(Chiba Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada(Kagawa National College of Tech.) / Yasuhiro Tsubo(Kyoto Sangyo Univ.) / Naoki Wakamiya(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(NTT) / Masafumi Kato(NICT) / Satoshi Denno |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Complex Communication Sciences / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2016-03-02 |
| Paper # | RCS2015-353 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-472 |
| Page | pp.pp.121-126(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |