Title:
RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/244045
Kind Code:
A1
Abstract:
Provided is a radio communication method for a radio communication system including an accommodation station device and a base station device that performs beam forming under the control of the accommodation station device. In the radio communication method, the accommodation station device controls the beam forming of the base station device by transmitting a modulated optical signal, which is generated by performing intensity modulation on an optical signal on the basis of a transmission signal to be transmitted, by controlling combinations of two of optical wavelengths, frequencies, and optical polarizations or by controlling frequencies, to the base station device via an optical transmission line; and the base station device inputs an electric signal based on the modulated optical signal to a beam forming circuit including input ports the number of which corresponds to the number of combinations of two of optical wavelengths, frequencies, and optical polarizations or the number of frequencies and thereby performs beam forming in directions corresponding to the input ports to which the electric signal is input.
Inventors:
ITO KOTA (JP)
SUGA MIZUKI (JP)
ARAI TAKUTO (JP)
SHIRATO YUSHI (JP)
KITA NAOKI (JP)
SUGA MIZUKI (JP)
ARAI TAKUTO (JP)
SHIRATO YUSHI (JP)
KITA NAOKI (JP)
Application Number:
PCT/JP2021/018577
Publication Date:
November 24, 2022
Filing Date:
May 17, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B7/06; H04B10/2575
Domestic Patent References:
| WO2021106041A1 | 2021-06-03 |
Foreign References:
| JP2017118483A | 2017-06-29 | |||
| US20150086212A1 | 2015-03-26 | |||
| JP4246724B2 | 2009-04-02 |
Other References:
KYO MINOGUCHI: "60 GHz band array antenna beam control using radio-over-fiber transmission technology and chromatic dispersion effect", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS TRANSACTION C, vol. J99-C, no. 9, 9 August 2019 (2019-08-09), pages 425 - 433, XP009541416
HONG WEI; JIANG ZHI HAO; YU CHAO; ZHOU JIANYI; CHEN PENG; YU ZHIQIANG; ZHANG HUI; YANG BINQI; PANG XINGDONG; JIANG MEI; CHENG YUJI: "Multibeam Antenna Technologies for 5G Wireless Communications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 65, no. 12, 1 December 2017 (2017-12-01), USA, pages 6231 - 6249, XP011673554, ISSN: 0018-926X, DOI: 10.1109/TAP.2017.2712819
DENNIS T. K. TONGMING C. WU: "A Novel Multiwavelength Optically Controlled Phased Array Antenna with a Programmable Dispersion Matrix", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 8, no. 6, June 1996 (1996-06-01), pages 812 - 814, XP011048291, DOI: 10.1109/68.502266
WEI HONGZHI HAO JIANGCHAO YUJIANYI ZHOUPENG CHENZHIQIANG YUHUI ZHANGBINQI YANGXINGDONG PANGMEI JIANG: "Multibeam antenna technologies for 5G wireless communications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 65, no. 12, pages 6231 - 6249, XP011673554, DOI: 10.1109/TAP.2017.2712819
HONG WEI; JIANG ZHI HAO; YU CHAO; ZHOU JIANYI; CHEN PENG; YU ZHIQIANG; ZHANG HUI; YANG BINQI; PANG XINGDONG; JIANG MEI; CHENG YUJI: "Multibeam Antenna Technologies for 5G Wireless Communications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 65, no. 12, 1 December 2017 (2017-12-01), USA, pages 6231 - 6249, XP011673554, ISSN: 0018-926X, DOI: 10.1109/TAP.2017.2712819
DENNIS T. K. TONGMING C. WU: "A Novel Multiwavelength Optically Controlled Phased Array Antenna with a Programmable Dispersion Matrix", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 8, no. 6, June 1996 (1996-06-01), pages 812 - 814, XP011048291, DOI: 10.1109/68.502266
WEI HONGZHI HAO JIANGCHAO YUJIANYI ZHOUPENG CHENZHIQIANG YUHUI ZHANGBINQI YANGXINGDONG PANGMEI JIANG: "Multibeam antenna technologies for 5G wireless communications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 65, no. 12, pages 6231 - 6249, XP011673554, DOI: 10.1109/TAP.2017.2712819
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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