| Presentation | 2020-01-24 Study on quick HARQ retransmission control based on channel state information in 5G URLLC Yusaku Shiomitsu, Eiji Okamoto, Manabu Mikami, Hitoshi Yoshino, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the fifth generation mobile communications system (5G), the use case of ultra-reliable and low latency communications (URLLC) scenario is studied to accommodate the wireless communication for autonomous driving. To realize URLLC, wireless transmission technologies to satisfy both reliability and low-latency are required. Hybrid Automatic Repeat reQuest (HARQ) retransmission control based on Acknowledgement /Negative Acknowledgement (ACK/NACK) feedbacks is widely used to increase the transmission reliability. However, the conventional HARQ consumes retransmission times and the delay time exceeds the latency requirement of URLLC. We have proposed an open-loop HARQ scheme which does not need feedback information and realizes both low-latency and reliability. However, in the conventional scheme, the throughput was lower due to a redundant retransmission. Therefore, in this paper, we propose a new HARQ control scheme for URLLC that utilizes a quick decision of retransmission and realizes a higher throughput. Numerical results show the better throughput performance than that of conventional scheme in addition to the satisfaction of URLLC requirements. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / URLLC / Mobile communications / Autonomous driving / Downlink |
| Paper # | IT2019-76,SIP2019-89,RCS2019-306 |
| Date of Issue | 2020-01-16 (IT, SIP, RCS) |
| Conference Information | |
| Committee | IT / SIP / RCS |
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| Conference Date | 2020/1/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima City Youth Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Jun Muramatsu(NTT) / Naoyuki Aikawa(TUS) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) / Kazunori Hayashi(Osaka City Univ) / Yukihiro Bandou(NTT) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Tadashi Wadayama(Saga Univ.) / Kazunori Hayashi(Nagano Pref Inst. of Tech.) / Yukihiro Bandou(Hiroshima Univ.) / Satoshi Suyama(Hosei Univ.) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) |
| Assistant | Hideki Yagi(UEC) / Kenjiro Sugimoto(Waseda Univ.) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Signal Processing / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on quick HARQ retransmission control based on channel state information in 5G URLLC |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | URLLC |
| Keyword(3) | Mobile communications |
| Keyword(4) | Autonomous driving |
| Keyword(5) | Downlink |
| 1st Author's Name | Yusaku Shiomitsu |
| 1st Author's Affiliation | Nagoya Institute of technology(NITech) |
| 2nd Author's Name | Eiji Okamoto |
| 2nd Author's Affiliation | Nagoya Institute of technology(NITech) |
| 3rd Author's Name | Manabu Mikami |
| 3rd Author's Affiliation | Softbank Corp.(Softbank) |
| 4th Author's Name | Hitoshi Yoshino |
| 4th Author's Affiliation | Softbank Corp.(Softbank) |
| Date | 2020-01-24 |
| Paper # | IT2019-76,SIP2019-89,RCS2019-306 |
| Volume (vol) | vol.119 |
| Number (no) | IT-376,SIP-377,RCS-378 |
| Page | pp.pp.233-238(IT), pp.233-238(SIP), pp.233-238(RCS), |
| #Pages | 6 |
| Date of Issue | 2020-01-16 (IT, SIP, RCS) |