Presentation 2023-04-14
Adaptive K-Repetition Transmission with Site Diversity Reception for 5G NR Uplink Grant-Free URLLC
Arif Dataesatu, Kosuke Sanada, Hiroyuki Hatano, Kazuo Mori, Pisit Boonsrimuang,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The fifth-generation (5G) new radio (NR) standard employs ultra-reliable and low-latency communication (URLLC) capabilities to provide real-time wireless interactive systems for the internet of things (IoT) applications. To satisfy the stringent latency and reliability demands of URLLC services, grant-free (GF) transmissions with the K-repetition transmission (K-Rep) were introduced. However, fading fluctuations can negatively impact signal quality at the base station (BS), leading to an increase in the number of repetitions and raising concerns about interference and energy consumption for IoT user equipment (UE). To overcome these challenges, this paper proposes novel adaptive K-Rep control schemes that employ site diversity reception to enhance signal quality and reduce energy consumption. The performance evaluation demonstrates the proposed adaptive K-Rep control schemes satisfy the URLLC requirements while reducing energy consumption and achieve significant improvement in reliability and reduction of transmission energy consumption compared with the conventional K-Rep scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IoT / URLLC / 5G NR / Grant-Free / K-Repetition / Adaptive Control / Site Diversity Reception / Energy Consumption
Paper # RCS2023-12
Date of Issue 2023-04-06 (RCS)

Conference Information
Committee RCS
Conference Date 2023/4/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Matsue New Urban Hotel, and online
Topics (in Japanese) (See Japanese page)
Topics (in English) Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc.
Chair Kenichi Higuchi(Tokyo Univ. of Science)
Vice Chair Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.)
Secretary Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp)
Assistant Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science)

Paper Information
Registration To Technical Committee on Radio Communication Systems
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Adaptive K-Repetition Transmission with Site Diversity Reception for 5G NR Uplink Grant-Free URLLC
Sub Title (in English)
Keyword(1) IoT
Keyword(2) URLLC
Keyword(3) 5G NR
Keyword(4) Grant-Free
Keyword(5) K-Repetition
Keyword(6) Adaptive Control
Keyword(7) Site Diversity Reception
Keyword(8) Energy Consumption
1st Author's Name Arif Dataesatu
1st Author's Affiliation Mie University(Mie Univ.)
2nd Author's Name Kosuke Sanada
2nd Author's Affiliation Mie University(Mie Univ.)
3rd Author's Name Hiroyuki Hatano
3rd Author's Affiliation Mie University(Mie Univ.)
4th Author's Name Kazuo Mori
4th Author's Affiliation Mie University(Mie Univ.)
5th Author's Name Pisit Boonsrimuang
5th Author's Affiliation King Mongkut's Institute of Technology Ladkrabang(KMITL)
Date 2023-04-14
Paper # RCS2023-12
Volume (vol) vol.123
Number (no) RCS-3
Page pp.pp.56-61(RCS),
#Pages 6
Date of Issue 2023-04-06 (RCS)