Title:
無線通信装置および周波数オフセット補償方法
Document Type and Number:
Japanese Patent JP6845044
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accurately compensate, in a radio communication system for transferring signals using a plurality of frequency bands, for a frequency offset for each frequency band without reducing noise tolerance.SOLUTION: A frequency offset processing unit comprises: a first estimation unit for estimating a frequency offset in a first frequency band on the basis of a signal S1; a first compensation unit for compensating for the frequency offset in the first frequency band on the basis of the frequency offset estimated by the first estimation unit; a temporary compensation unit for compensating for a frequency offset in a second frequency band by correcting a signal S2 on the basis of the frequency offset estimated by the first estimation unit; a second estimation unit for estimating a residual frequency offset in the second frequency band on the basis of the signal S2 corrected by the temporary compensation unit; and a second compensation unit for compensating, on the basis of the residual frequency offset estimated by the second estimation unit, for the residual frequency offset in the second frequency band whose frequency offset is compensated for by the temporary compensation unit.SELECTED DRAWING: Figure 4
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Inventors:
Shuto Masayuki
Application Number:
JP2017040077A
Publication Date:
March 17, 2021
Filing Date:
March 03, 2017
Export Citation:
Assignee:
Mobile Techno Co., Ltd.
International Classes:
H04B1/00; H04B1/16; H04B1/30
Domestic Patent References:
| JP2011522452A | ||||
| JP2012222454A | ||||
| JP2011250093A | ||||
| JP2009267714A | ||||
| JP2001053712A |
Foreign References:
| CN101222465A | ||||
| WO2010026697A1 | ||||
| WO2001076097A1 |
Attorney, Agent or Firm:
Hiroyoshi Aoki
Amada Masayuki
Yoshiyuki Osuga
Shinobu Horiguchi
Amada Masayuki
Yoshiyuki Osuga
Shinobu Horiguchi