Title:
WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/019885
Kind Code:
A1
Abstract:
A wireless communication device (500) according to the present disclosure is provided with: a plurality of antennas (520#n); a plurality of transmitter-receivers (TRX#n) that are provided respectively corresponding to the plurality of antennas (520#n), and respectively include transmitters (TX#n) and receivers (RX#n); a transmitter-receiver (CAL-TRX) for calibration; a distribution and composition unit (530); and a control unit (510). The control unit (510) makes transmission calibration signals respectively sent to the transmitters (TX#n) frequency-orthogonal for the respective transmitters (TX#n). Each of the transmitters (TX#n) sends a transmission calibration signal made frequency-orthogonal. The distribution and composition unit (530) composes the transmission calibration signals respectively sent from the transmitters (TX#n), and transports a composite signal to the transmitter-receiver (CAL-TRX) for calibration.
Inventors:
MOCHIZUKI TAKUJI (JP)
Application Number:
PCT/JP2020/020714
Publication Date:
February 04, 2021
Filing Date:
May 26, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01Q3/26; H01Q21/06; H04B7/06
Domestic Patent References:
| WO2004109952A1 | 2004-12-16 |
Foreign References:
| JP2006279900A | 2006-10-12 | |||
| JP2011106858A | 2011-06-02 | |||
| JP2018533252A | 2018-11-08 | |||
| JP2017195463A | 2017-10-26 | |||
| JP2019141082A | 2019-08-29 |
Other References:
See also references of EP 4007069A4
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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