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| Presentation | 2017-06-23 14:45 Initial Cell Search Method with MLD Based Frequency Offset Estimation in LTE Heterogeneous Networks Aya Shimura, Mamoru Sawahashi (Tokyo City Univ.), Satoshi Nagata, Yoshihisa Kishiyama (NTT DOCOMO)  RCS2017-89 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a fast cell search method using maximum likelihood detection (MLD) based frequency offset estimation for a small cell in Long Term Evolution (LTE) heterogeneous networks. In the proposed cell search method, a set of user equipment (UE) first detects the PSS received timing based on the maximum autocorrelation peak between the received sample signals which are five milliseconds apart. Then, a UE estimates the fractional frequency offset value from the phase rotation between the two consecutive primary synchronization signals (PSSs). After compensating for the fractional frequency offset, a UE detects the accurate frequency offset value and the PSS sequence based on MLD simultaneously. The UE detects the best secondary synchronization signal (SSS) sequence by taking the SSS sequence correlation for the received signal after compensating for the accurate frequency offset. System-level simulation results show that the proposed cell search method achieves a fast initial cell search time within 100 (200) ms to satisfy the cell ID detection probability of 95 % for the carrier frequency of a small cell up to 10 (24) GHz, assuming the free-running frequency error of the UE TCXO of 3 ppm. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Cell search / LTE / synchronization signal / heterogeneous networks / small cell / frequency offset / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 103, RCS2017-89, pp. 233-238, June 2017. | |
| Paper # | RCS2017-89 | |
| Date of Issue | 2017-06-14 (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 | RCS2017-89 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2017-06-21 - 2017-06-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ishigaki Shoukou Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2017-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Initial Cell Search Method with MLD Based Frequency Offset Estimation in LTE Heterogeneous Networks |
| Sub Title (in English) | |
| Keyword(1) | Cell search |
| Keyword(2) | LTE |
| Keyword(3) | synchronization signal |
| Keyword(4) | heterogeneous networks |
| Keyword(5) | small cell |
| Keyword(6) | frequency offset |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Aya Shimura |
| 1st Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 2nd Author's Name | Mamoru Sawahashi |
| 2nd Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 3rd Author's Name | Satoshi Nagata |
| 3rd Author's Affiliation | NTT DOCOMO (NTT DOCOMO) |
| 4th Author's Name | Yoshihisa Kishiyama |
| 4th Author's Affiliation | NTT DOCOMO (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2017-06-23 14:45:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2017-89 |
| Volume (vol) | vol.117 |
| Number (no) | no.103 |
| Page | pp.233-238 |
| #Pages | 6 |
| Date of Issue | 2017-06-14 (RCS) |
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