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| Presentation | 2022-07-14 11:45 An Experimental Study on Automatic Gain Control in HAPS Repeater System Takuya Hasegawa, Mitsukuni Konishi, Yoshichika Ohta, Atsushi Nagate (SoftBank)  SR2022-29 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | High-Altitude Platform Station (HAPS) is a new mobile communication platform which enables to directly provide mobile communications services with LTE (Long Term Evolution) or 5G NR (New Radio) from stratosphere to terrestrial User Equipment (UE) by utilizing aerial vehicles in stratosphere, and it is very attractive due to its ultrawide service coverage and as a backup line of mobile communications in case of disaster. In a HAPS wireless repeater system equipped with a non-regenerative repeater station, which is one of implementations of HAPS mobile communication systems, propagation loss through feeder link between terrestrial master device and aerial remote device of the repeater system changes over time, and AGC (Automatic Gain Control) is therefore important. However, in the HAPS wireless repeater system, it is essential to consider effects of antenna rotation accompanied with a circular flight of the platform. Particularly, the effect is remarkable when using linearly polarized wave antennas for the feeder link considering internal loss of antennas. In this paper, we propose a new method which gives stable gain control of AGC under the antenna rotation and experimentally evaluate its effect. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | HAPS / Wireless repeater system / AGC / 5G NR / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 107, SR2022-29, pp. 41-47, July 2022. | |
| Paper # | SR2022-29 | |
| Date of Issue | 2022-07-06 (SR) | |
| 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) | |
| Download PDF | SR2022-29 |
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| Conference Information | |
| Committee | NS SR RCS SeMI RCC |
| Conference Date | 2022-07-13 - 2022-07-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Kanazawa Theatre + Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Distributed Wireless Network, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2022-07-NS-SR-RCS-SeMI-RCC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Experimental Study on Automatic Gain Control in HAPS Repeater System |
| Sub Title (in English) | |
| Keyword(1) | HAPS |
| Keyword(2) | Wireless repeater system |
| Keyword(3) | AGC |
| Keyword(4) | 5G NR |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Takuya Hasegawa |
| 1st Author's Affiliation | SoftBank Corporation (SoftBank) |
| 2nd Author's Name | Mitsukuni Konishi |
| 2nd Author's Affiliation | SoftBank Corporation (SoftBank) |
| 3rd Author's Name | Yoshichika Ohta |
| 3rd Author's Affiliation | SoftBank Corporation (SoftBank) |
| 4th Author's Name | Atsushi Nagate |
| 4th Author's Affiliation | SoftBank Corporation (SoftBank) |
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| Speaker | Author-1 |
| Date Time | 2022-07-14 11:45:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2022-29 |
| Volume (vol) | vol.122 |
| Number (no) | no.107 |
| Page | pp.41-47 |
| #Pages | 7 |
| Date of Issue | 2022-07-06 (SR) |
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