Title:
WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/260097
Kind Code:
A1
Abstract:
This wireless communication device comprises: an antenna unit provided with a plurality of antenna units that transmit/receive n number of communication signals having different directivities; a multiplexer connected to the antenna unit; and n number of signal transmission/reception units which are provided in correspondence to n number of communication signals, and which are connected to the multiplexer, generate transmission signals, and demodulate reception signals. At the time of reception, the multiplexer sequentially samples n number of reception signals for the respective directivities by performing time division in a sampling cycle which is short compared to the symbol cycle of the n number of reception signals and switching the connection between the antenna unit and the n number of signal transmission/reception units. In the sampling cycle, the antenna unit sequentially receives the divided reception signals obtained by dividing the reception signals corresponding to the directivities. The signal transmission/reception units each individually demodulate the reception signal corresponding to the divided reception signals corresponding to the directivity of the signal transmission/reception unit, the divided reception signals being sequentially acquired at the timing of the connection to the multiplexer.
Inventors:
OKADA KENICHI (JP)
Application Number:
PCT/JP2022/023169
Publication Date:
December 15, 2022
Filing Date:
June 08, 2022
Export Citation:
Assignee:
TOKYO INST TECH (JP)
International Classes:
H04B7/0413; H04B7/06; H04B7/08
Domestic Patent References:
| WO2022038687A1 | 2022-02-24 | |||
| WO2022038689A1 | 2022-02-24 |
Foreign References:
| JP2018019384A | 2018-02-01 | |||
| JP2017038194A | 2017-02-16 | |||
| JP2020141292A | 2020-09-03 | |||
| JP2021145210A | 2021-09-24 |
Other References:
SOTA TAKAHASHI, ISSEI WATANABE, KENTARO NISHIMORI, RYOTARO TANIGUCHI, TOMOKI MURAKAMI: "Study on signal selection in blind based virtual massive array", IEICE TECHNICAL REPORT, IEICE, JP, vol. 120, no. 314 (CQ2020-60), 13 January 2021 (2021-01-13), JP , pages 1 - 4, XP009542123, ISSN: 2432-6380
MURAKAMI, TOMOKI ET AL.: "Proposal of Virtual Massive MIMO (VM-MIMO)", LECTURE PROCEEDINGS OF THE 2019 GENERAL CONFERENCE OF IEICE: COMMUNICATION 1., 5 March 2019 (2019-03-05), pages 123, XP009535297
MURAKAMI, TOMOKI ET AL.: "Proposal of Virtual Massive MIMO (VM-MIMO)", LECTURE PROCEEDINGS OF THE 2019 GENERAL CONFERENCE OF IEICE: COMMUNICATION 1., 5 March 2019 (2019-03-05), pages 123, XP009535297
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
Download PDF:
Previous Patent: PHOTOELECTRIC CONVERSION ELEMENT MATERIAL FOR IMAGING ELEMENT AND PHOTOELECTRIC CONVERSION ELEMENT F...
Next Patent: JOINT DEVICE
Next Patent: JOINT DEVICE