Title:
COMMUNICATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, CONTROL CIRCUIT, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/095308
Kind Code:
A1
Abstract:
A communication device according to the present invention is characterized by being provided with: an inverse spread unit (209) that performs inverse spread processing of a received signal subjected to direct spread processing; a signal detection unit that detects a plurality of signals included in the received signal after the inverse spread processing; a delay amount estimation unit that estimates a delay amount of each of the plurality of detected signals; a pilot signal extraction unit (211) that extracts, from the received signal, a sub-carrier including a pilot signal on the basis of the estimated delay amount; a spread unit (213) that performs direct spread processing of the extracted pilot signal by using a spread sequence used by a transmission source of the received signal when performing the direct spread processing; and a transmission path estimation processing unit (214) that performs transmission path estimation processing on the basis of the pilot signal after the direct spread processing.
Inventors:
AMANO KYOHEI (JP)
OHASHI AKINORI (JP)
NAKAMURA RYOSUKE (JP)
HORI YUTA (JP)
OHASHI AKINORI (JP)
NAKAMURA RYOSUKE (JP)
HORI YUTA (JP)
Application Number:
PCT/JP2021/043475
Publication Date:
June 01, 2023
Filing Date:
November 26, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B1/7117
Foreign References:
| JP2003069530A | 2003-03-07 | |||
| JP2004297444A | 2004-10-21 | |||
| JP2012070131A | 2012-04-05 | |||
| JP2008124942A | 2008-05-29 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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