Title:
PHASE VARIATION COMPENSATION DEVICE, PHASE VARIATION COMPENSATION METHOD, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/022268
Kind Code:
A1
Abstract:
A known pattern comparison-type phase difference detection unit (12) detects, as a first phase difference, a phase difference between a known pattern extracted from a reception signal and a true value of the known pattern. The number of modulation phases in a phase modulation scheme of the reception signal is M, and an M-th power-type phase difference detection unit (13) raises the reception signal to an M-th power to remove a modulation component, and detects, as a second phase difference, a phase variation from a mapping modulation phase point on the transmission side. A phase compensation unit (11) compensates for the phase variation in the reception signal on the basis of the result of summing the first phase difference and the second phase difference.
Inventors:
TAKAMUKU TOMOHIRO (JP)
YOSHIDA MITSUTERU (JP)
TAKEYA TSUTOMU (JP)
OYAMA KATSUICHI (JP)
NOUCHI HIROYUKI (JP)
SUENAGA ATSUSHI (JP)
YOSHIDA MITSUTERU (JP)
TAKEYA TSUTOMU (JP)
OYAMA KATSUICHI (JP)
NOUCHI HIROYUKI (JP)
SUENAGA ATSUSHI (JP)
Application Number:
PCT/JP2019/028656
Publication Date:
January 30, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
NTT ELECTRONICS CORP (JP)
International Classes:
H04B10/61; H04L25/03
Foreign References:
| US20150215050A1 | 2015-07-30 | |||
| JP2018042219A | 2018-03-15 | |||
| JP6183503B1 | 2017-08-23 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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