Presentation 2019-12-06
A Basic Study of Spectrum Sharing between HAPS and Terrestrial Mobile Communication Systems
Mitsukuni Konishi, Takuya Nishimaki, Sho Nabatame, Atsushi Nagate,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) High-Altitude Platform Station (HAPS) is a new mobile communications platform which can provide mobile communications services from stratosphere to terrestrial LTE (Long Term Evolution) or 5G NR (New Radio) UEs (User Equipment) directly by utilizing aerial vehicles such as balloon, airplane or airship with radio equipment at the altitude of 20km. The service area of the HAPS overlaps that of terrestrial mobile communications systems due to its ultra-wide coverage. In this case, spectrum sharing between HAPS and the terrestrial systems effectively utilizes spectrum resources. However, conventional studies on the spectrum sharing between HAPS and terrestrial systems have not been investigated so far. In this paper, we propose a downlink spectrum sharing system between HAPS and the terrestrial networks. In addition to this, we evaluate the communications quality of the downlink spectrum sharing in the actual environments based on outdoor propagation measurement and clarify the feasibility of the proposed system.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) HAPS / Spectrum sharing / Outdoor propagation measurement
Paper # SR2019-105
Date of Issue 2019-11-28 (SR)

Conference Information
Committee SR
Conference Date 2019/12/5(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Ishigaki City Hall (Ishigaki Island)
Topics (in Japanese) (See Japanese page)
Topics (in English) cognitive radio, machine learning application, heterogeneous network, SDN, IoT etc.
Chair Masayuki Ariyoshi(NEC)
Vice Chair Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT)
Secretary Suguru Kameda(ATR) / Osamu Takyu(Univ. of Electro-Comm.) / Kentaro Ishidu(Mie Univ.)
Assistant Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.)

Paper Information
Registration To Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Basic Study of Spectrum Sharing between HAPS and Terrestrial Mobile Communication Systems
Sub Title (in English)
Keyword(1) HAPS
Keyword(2) Spectrum sharing
Keyword(3) Outdoor propagation measurement
Keyword(4)
1st Author's Name Mitsukuni Konishi
1st Author's Affiliation HAPSMobile Inc.(HAPSMobile)
2nd Author's Name Takuya Nishimaki
2nd Author's Affiliation HAPSMobile Inc.(HAPSMobile)
3rd Author's Name Sho Nabatame
3rd Author's Affiliation HAPSMobile Inc.(HAPSMobile)
4th Author's Name Atsushi Nagate
4th Author's Affiliation HAPSMobile Inc.(HAPSMobile)
Date 2019-12-06
Paper # SR2019-105
Volume (vol) vol.119
Number (no) SR-325
Page pp.pp.95-102(SR),
#Pages 8
Date of Issue 2019-11-28 (SR)