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| Paper Abstract and Keywords | ||
| Presentation | 2022-12-16 15:50 [Invited Lecture] Standardization of NR network-controlled repeater in 3GPP and research on coverage expansion techniques in millimeter-wave bands Takeo Ohseki, Ryochi Kataoka, Masahiro Takigawa, Taishi Watanabe, Yoshiaki Amano (KDDI Research)  NS2022-149 RCS2022-207 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the access links of mobile communications system, RF repeaters and relaying nodes have been considered as a means to expand coverage, to counter dead spots caused by some blockages, or as a measure to realize indoor coverage. In particular, RF repeaters, which are relatively inexpensive, are widely used in actual commercial systems. In addition, the millimeter wave bands, such as the 28 GHz band that has recently begun to be used for 5G, have higher propagation loss than the conventional microwave bands, so expectations for RF repeaters are increasing. In order to compensate for propagation loss in the millimeter wave bands, gNB and UE are equipped with antenna beamforming functions, and the gNB coordinates and controls these functions. Therefore, it is expected that RF repeaters also have the same function and are controlled by the gNB to realize efficient operation. This presentation describes the standardization trend of the RF repeater of which beams and other functions can be controlled by the gNB, which is currently being standardized in 3GPP Release 18, called NR network-controlled repeater. In addition, as a technique to further improve the communication performance of RF repeaters introduced in the millimeter wave bands, this presentation introduces a relay method to achieve high-speed transmission by applying frequency multiplexing and spatial multiplexing to each link between a UE and an RF repeater and between an RF repeater and a gNB, respectively, and by applying Line-of-sight MIMO to the link with spatial multiplexing. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 5G / 5G-Advanced / Beyond 5G / Millimeter wave / Relay communication / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 311, RCS2022-207, pp. 98-98, Dec. 2022. | |
| Paper # | RCS2022-207 | |
| Date of Issue | 2022-12-08 (NS, 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) | |
| Download PDF | NS2022-149 RCS2022-207 |
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| Conference Information | |
| Committee | RCS NS |
| Conference Date | 2022-12-15 - 2022-12-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Institute of Technology, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2022-12-RCS-NS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Standardization of NR network-controlled repeater in 3GPP and research on coverage expansion techniques in millimeter-wave bands |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | 5G-Advanced |
| Keyword(3) | Beyond 5G |
| Keyword(4) | Millimeter wave |
| Keyword(5) | Relay communication |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takeo Ohseki |
| 1st Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| 2nd Author's Name | Ryochi Kataoka |
| 2nd Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| 3rd Author's Name | Masahiro Takigawa |
| 3rd Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| 4th Author's Name | Taishi Watanabe |
| 4th Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| 5th Author's Name | Yoshiaki Amano |
| 5th Author's Affiliation | KDDI Research, Inc. (KDDI Research) |
| Speaker | Author-1 |
| Date Time | 2022-12-16 15:50:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | NS2022-149, RCS2022-207 |
| Volume (vol) | vol.122 |
| Number (no) | no.310(NS), no.311(RCS) |
| Page | p.87(NS), p.98(RCS) |
| #Pages | 1 |
| Date of Issue | 2022-12-08 (NS, RCS) |
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