COMMUNICATION DEVICE, CONTROL METHOD, AND PROGRAM

WIPO Patent Application WO/2024/009862

A1

A communication device according to an embodiment of the present invention is provided with a signal reception unit, a time waveform calculation unit, an FFT unit, a frequency waveform calculation unit, and a switching timing estimation unit. The signal reception unit receives an OFDM signal and converts the OFDM signal to a baseband time axis waveform signal. The time waveform calculation unit extracts part of the time axis waveform signal output from the signal reception unit and calculates a correlation value between the extracted signal and a known signal. The FFT unit performs an FFT with respect to the time axis waveform signal output from the signal reception unit. The frequency waveform calculation unit extracts part of a frequency axis waveform signal output from the FFT unit and calculates the similarity between the extracted signal and a known signal. The switching timing estimation unit estimates, on the basis of the calculation result of the frequency waveform calculation unit, a timing for switching between uplink communication and downlink communication at a local device.

SUGIMOTO MASAHIKO (JP)
KAWABATA KENSEI (JP)
DOI TOSHINORI (JP)

PCT/JP2023/023908

January 11, 2024

June 28, 2023

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TOSHIBA KK (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)

H04L27/26; H04B7/022; H04J13/16; H04W88/08

JP2020053769A	2020-04-02
JP2020504568A	2020-02-06
JP2011525755A	2011-09-22
JP2011525781A	2011-09-22
JP2023098156A	2023-07-10

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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