Title:
RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP2018157430
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To efficiently supply power to another radio communication device that communicates using a frequency channel with a narrow band.SOLUTION: A radio communication device of an embodiment includes: a communication unit capable of communicating using each of a plurality of first frequency channels; a transmission unit for transmitting a signal using a second frequency channel having wider bandwidth than each of the first frequency channels; and a control unit for selecting a first frequency channel belonging to a band of the second frequency channel among the first frequency channels and conducting channel estimation using the selected first frequency channel, and thereby obtaining first channel information representing a state of the selected first frequency channel. The transmission unit calculates second channel information representing a state of the second frequency channel on the basis of the first channel information and controls directivity of the signal on the basis of the second channel information.SELECTED DRAWING: Figure 1
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Inventors:
MATSUO AYAKO
Application Number:
JP2017053626A
Publication Date:
October 04, 2018
Filing Date:
March 17, 2017
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H04W16/28; H02J7/00; H02J50/20; H02J50/80; H02J50/90; H04W4/00; H04W72/04; H04W84/10; H04W84/12
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei