Paper Abstract and Keywords |
Presentation |
2018-08-09 11:20
Field Trial of 28 GHz Band Downlink Massive MIMO in Railway Environment Yuta Takahashi, Hiroyuki Miyazaki, Tatsuki Okuyama, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-133 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Field trials of the fifth-generation (5G) mobile communication system using 28 GHz band at which almost 1-GHz band will be available have been performed all over the world. To realize large coverage at such a high frequency band, beamforming by Massive MIMO (Multiple Input Multiple Output) is necessary to compensate large path loss. Furthermore, beam tracking which adaptively changes beam direction according to user location is an important function to support user mobility. Authors already conducted field trials of 28 GHz-band 5G transmission using a high speed motor car considering use of 5G in railway. However, the environment of the trail was not on railway track but on road. Also it was not impact how position of mobile stations in the railway car affects the performance of 5G transmission. Thus we conducted 5G filed trials in the actual railway environment. This report reveals results of downlink performances using railway cars traveling at 90 km/h. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
5G / High Mobility / Massive MIMO / Beamforming / Beam Tracking / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 177, RCS2018-133, pp. 13-18, Aug. 2018. |
Paper # |
RCS2018-133 |
Date of Issue |
2018-08-02 (RCS) |
ISSN |
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) |
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RCS2018-133 |
Conference Information |
Committee |
SAT RCS |
Conference Date |
2018-08-09 - 2018-08-10 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Iwate University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Wireless Communications, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2018-08-SAT-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Field Trial of 28 GHz Band Downlink Massive MIMO in Railway Environment |
Sub Title (in English) |
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Keyword(1) |
5G |
Keyword(2) |
High Mobility |
Keyword(3) |
Massive MIMO |
Keyword(4) |
Beamforming |
Keyword(5) |
Beam Tracking |
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Keyword(7) |
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Keyword(8) |
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1st Author's Name |
Yuta Takahashi |
1st Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
2nd Author's Name |
Hiroyuki Miyazaki |
2nd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
3rd Author's Name |
Tatsuki Okuyama |
3rd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
4th Author's Name |
Kazushi Muraoka |
4th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
5th Author's Name |
Jun Mashino |
5th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
6th Author's Name |
Satoshi Suyama |
6th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
7th Author's Name |
Yukihiko Okumura |
7th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
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Speaker |
Author-1 |
Date Time |
2018-08-09 11:20:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2018-133 |
Volume (vol) |
vol.118 |
Number (no) |
no.177 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2018-08-02 (RCS) |
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