| Presentation | 2014-10-31 A Basic Study on Network-Listening Based Synchronization for Small Cells in LTE-Advanced(Poster session) Mitsukuni Konishi, Daigo Ogata, Atsushi Nagate, Teruya Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, the exponential increase of mobile data traffic has become a major problem. The layered cell structure, in which a large number of small cells overlay each macro cell to increase network capacity is attracting much attention. In the layered cell structure, eICIC is essential to avoid the interference between the macro cells and the small cells when co-channel deployment is used. Because eICIC conducts interference coordination in the time domain, accurate timing synchronization is required between the macro cells and the small cells. Although GNSS-based or packet-based timing synchronization is effective in many cases, GNSS-based synchronization cannot be used indoors and the packet-based approach may not work well depending on the backhaul network configuration. Network-listening based synchronization is attracting much attention recently as an alternative to the above methods. It uses just the macro-cell signal to realize accurate synchronization. However, the loop-back signal from the small-cell eNB itself interferes the reception of the macro-cell signal. In this paper, we propose a simple synchronization method eliminating the loop-back interference and clarify that it achieves accurate synchronization by computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LTE-Advanced / Layered cell structure / HetNet / Small cell / Timings synchronization / Network listening / Radio-interface based synchronization |
| Paper # | SR2014-79 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2014/10/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Radio(SR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Basic Study on Network-Listening Based Synchronization for Small Cells in LTE-Advanced(Poster session) |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | Layered cell structure |
| Keyword(3) | HetNet |
| Keyword(4) | Small cell |
| Keyword(5) | Timings synchronization |
| Keyword(6) | Network listening |
| Keyword(7) | Radio-interface based synchronization |
| 1st Author's Name | Mitsukuni Konishi |
| 1st Author's Affiliation | Research and Development Division, SoftBank Mobile Corp.() |
| 2nd Author's Name | Daigo Ogata |
| 2nd Author's Affiliation | Research and Development Division, SoftBank Mobile Corp. |
| 3rd Author's Name | Atsushi Nagate |
| 3rd Author's Affiliation | Research and Development Division, SoftBank Mobile Corp. |
| 4th Author's Name | Teruya Fujii |
| 4th Author's Affiliation | Research and Development Division, SoftBank Mobile Corp. |
| Date | 2014-10-31 |
| Paper # | SR2014-79 |
| Volume (vol) | vol.114 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |