Presentation 2023-06-30
[Invited Talk] Study on Integration and Cooperation of Telecommunication and Wireless Power Transfer
Yuta Nakamoto, Naoki Hasegawa, Takashi Hirakawa, Yoshichika Ohta,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The IoT business has been developing rapidly in recent years, and IoT devices are expected to become more widespread in the future to realize automated driving and digital twins. However, as the number of IoT devices increases, communication traffic will grow, and power supply and battery replacement for these devices will become major issues. To solve these issues, we aim to realize a system that wirelessly transmits not only information but also power to IoT devices. In this paper, we introduce our research and development on the integration and cooperation of telecommunication and wireless power transfer. We propose a wireless power transmission system that uses vacant resource blocks in communication base stations. As a suitable signal for wireless power transmission in the above system, we consider modulation signals based on OFDM, which has high compatibility with telecommunications. We demonstrate the effectiveness of the modulated signal in the transmitting and receiving part of the system. Furthermore, a wireless power transmission frame is integrated into the developed communication device. We also explain the experimental evaluation of communication and wireless power transmission from the same communication device.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless Power Transmission / Millimeter wave antenna arrays / Millimeterwave communication / Rectennas
Paper # WPT2023-10
Date of Issue 2023-06-23 (WPT)

Conference Information
Committee WPT
Conference Date 2023/6/30(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kenjiro Nishikaa(Kagoshima Univ.)
Vice Chair Hiroshi Hirayama(Nagoya Inst. of Tech.)
Secretary Hiroshi Hirayama(UL Japan)
Assistant Asako Suzuki(Fujiwaves) / Takaki Ishikawa(Orient Microwave) / Katsuhiro Hata(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Wireless Power Transfer
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] Study on Integration and Cooperation of Telecommunication and Wireless Power Transfer
Sub Title (in English)
Keyword(1) Wireless Power Transmission
Keyword(2) Millimeter wave antenna arrays
Keyword(3) Millimeterwave communication
Keyword(4) Rectennas
1st Author's Name Yuta Nakamoto
1st Author's Affiliation SoftBank Corporation(SoftBank Corp.)
2nd Author's Name Naoki Hasegawa
2nd Author's Affiliation SoftBank Corporation(SoftBank Corp.)
3rd Author's Name Takashi Hirakawa
3rd Author's Affiliation SoftBank Corporation(SoftBank Corp.)
4th Author's Name Yoshichika Ohta
4th Author's Affiliation SoftBank Corporation(SoftBank Corp.)
Date 2023-06-30
Paper # WPT2023-10
Volume (vol) vol.123
Number (no) WPT-93
Page pp.pp.2-2(WPT),
#Pages 1
Date of Issue 2023-06-23 (WPT)