Title:
WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, TRANSMISSION STATION DEVICE, AND RECEPTION STATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/044625
Kind Code:
A1
Abstract:
This transmission station device is provided with at least a training signal generation unit, and this reception station device is provided with at least a communication path estimation unit which estimates a communication path response from a known signal. A beam formation unit which performs a beam formation process by using weights for suppressing interference between streams, a channel variation amount calculation unit which calculates, as a channel variation amount, the difference between communication path responses that are estimated successively in time; and a weight calculation unit which calculates new weights by using update values of the weights, which are calculated on the basis of the channel variation amount, are provided to any one among the transmission station device and the reception station device. Accordingly, a calculation amount pertaining to the update of the weights can be significantly reduced.
Inventors:
KURIYAMA KEITA (JP)
FUKUZONO HAYATO (JP)
YOSHIOKA MASAFUMI (JP)
TATSUTA TSUTOMU (JP)
FUKUZONO HAYATO (JP)
YOSHIOKA MASAFUMI (JP)
TATSUTA TSUTOMU (JP)
Application Number:
PCT/JP2019/035252
Publication Date:
March 11, 2021
Filing Date:
September 06, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B7/0413
Domestic Patent References:
| WO2014115374A1 | 2014-07-31 | |||
| WO2018073851A1 | 2018-04-26 | |||
| WO2018030243A1 | 2018-02-15 | |||
| WO2019039913A2 | 2019-02-28 |
Other References:
KURIYAMA, KEITA ET AL.: "Wide-band Single Carrier MIMO System applying FIR transmit beamforming and bidirectional receive equalization", 2019 OF IEICE GENERAL CONFERENCE (COMMUNICATION LECTURE PROCEEDINGS 1, 22 March 2019 (2019-03-22), pages 371
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
Download PDF: