US 11,812,283 B2
Transmission device, receiving device, base station, terminal, and transmission method which improve interference estimation
Fumihiro Hasegawa, Tokyo (JP); and Akinori Taira, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed by MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed on Jun. 17, 2021, as Appl. No. 17/350,316.
Application 17/350,316 is a division of application No. 16/481,255, granted, now 11,076,305, previously published as PCT/JP2018/000358, filed on Jan. 10, 2018.
Claims priority of application No. PCT/JP2017/003599 (WO), filed on Feb. 1, 2017.
Prior Publication US 2021/0314791 A1, Oct. 7, 2021
Int. Cl. H04W 24/02 (2009.01); H04B 17/345 (2015.01); H04L 5/00 (2006.01); H04W 64/00 (2009.01); H04W 16/28 (2009.01)
CPC H04W 24/02 (2013.01) [H04B 17/345 (2015.01); H04L 5/0051 (2013.01); H04W 64/00 (2013.01); H04W 16/28 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A transmission device comprising:
in relationship of at least one code division multiplexing (CDM) group ID, at least one port number each corresponding to one of the at least one CDM group ID, and at least one reference signal each corresponding to the at least one port number,
a transmitter configured to transmit the at least one port number; and
a control circuit configured to generate, based on the at least one port number, at least one random number using the at least one CDM group ID, the at least one random number being used as the at least one reference signal,
wherein the transmitter transmits the generated at least one reference signal.