Title:
COMMUNICATION DEVICE, PROGRAM AND COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2020028015
Kind Code:
A
Abstract:
To provide a technology capable of alleviating reduction in service area due to a specification of a high frequency band, such as 28 GHz band.SOLUTION: Provided is a communication device that comprises: an array antenna; a first beamforming unit that controls a beam pattern of the array antenna; a second beamforming unit that, in a case where a control signal from a first radio base station can be decoded by the beam pattern controlled by the first beamforming unit, estimates an arrival direction of an electric wave arrived from the first radio base station by a plurality of reception paths from the first radio base station on the basis of the control signal, and controls the beam pattern of the array antenna according to the estimation result; and a first communication unit that communicates with the first radio base station via the array antenna whose beam pattern is controlled by the second beamforming unit.SELECTED DRAWING: Figure 1
Inventors:
TSUTSUI TAKASHI
TANAKA TOSHINOBU
GOUKON KAZUHIKO
YABUKI AYUMI
KITAKATA MASAYUKI
TANAKA TOSHINOBU
GOUKON KAZUHIKO
YABUKI AYUMI
KITAKATA MASAYUKI
Application Number:
JP2018151838A
Publication Date:
February 20, 2020
Filing Date:
August 10, 2018
Export Citation:
Assignee:
SOFTBANK CORP
International Classes:
H04B7/06; H02J50/20; H04B7/08
Domestic Patent References:
| JP2014093659A | 2014-05-19 | |||
| JPH04172788A | 1992-06-19 | |||
| JP2020504528A | 2020-02-06 | |||
| JP2014526217A | 2014-10-02 |
Foreign References:
| WO2018062456A1 | 2018-04-05 | |||
| US20180041319A1 | 2018-02-08 |
Other References:
"５Ｇ、行きまーす！ ＷＭＣ ２０１８で見えた理想と現実 第２部：見えてきた課題 未解決の「上り通信問", 日経エレクトロニクス, vol. 第１１９０号, JPN6022004090, 20 March 2018 (2018-03-20), pages 38 - 46, ISSN: 0004833585
Attorney, Agent or Firm:
Longhua International Patent Service Corporation