US 11,888,671 B2
Transmitting apparatus, receiving apparatus, transmitting method, and receiving method
Fumihiro Hasegawa, Tokyo (JP); and Akinori Taira, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Chiyoda-ku (JP)
Filed by Mitsubishi Electric Corporation, Chiyoda-ku (JP)
Filed on Jan. 6, 2022, as Appl. No. 17/569,575.
Application 17/569,575 is a division of application No. 16/776,865, filed on Jan. 30, 2020, granted, now 11,303,489.
Application 16/776,865 is a division of application No. 15/568,501, granted, now 10,594,527, issued on Mar. 17, 2020, previously published as PCT/JP2015/072541, filed on Aug. 7, 2015.
Prior Publication US 2022/0131732 A1, Apr. 28, 2022
Int. Cl. H04L 27/26 (2006.01); H04J 11/00 (2006.01); H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04L 25/03 (2006.01); H04L 25/02 (2006.01)
CPC H04L 27/2627 (2013.01) [H04J 11/003 (2013.01); H04J 11/0023 (2013.01); H04L 5/0007 (2013.01); H04L 27/2657 (2013.01); H04L 27/2662 (2013.01); H04W 72/0453 (2013.01); H04J 2211/006 (2013.01); H04L 25/022 (2013.01); H04L 25/03159 (2013.01); H04L 27/26526 (2021.01); H04L 2025/03414 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A transmitting apparatus comprising:
a first signal generator configured to generate, based on data, a first signal to be transmitted according to single carrier block transmission;
a second signal generator configured to generate, based on a known signal, a second signal to be transmitted according to orthogonal frequency division multiplex transmission;
a switcher configured to receive the first signal and the second signal, to select and output the second signal in a first transmission period, and to select and output the first signal in a second transmission period notified by a receiving apparatus; and
at least one antenna configured to transmit the first signal and the second signal output from the switcher, and further comprising:
a controller configured to control the second signal generator such that, in the first transmission period, the known signal is a reference signal used for demodulating the first signal in the second transmission period and is arranged in discontinuous frequency bands assigned by the receiving apparatus for transmitting the known signal from the transmitting apparatus among frequency bands available in the orthogonal frequency division multiplex transmission.