US 12,323,201 B2
Wireless communication system, wireless communication method, and receiving device
Hayato Fukuzono, Musashino (JP); Keita Kuriyama, Musashino (JP); Masafumi Yoshioka, Musashino (JP); and Toshifumi Miyagi, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 18/036,315
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Nov. 12, 2020, PCT No. PCT/JP2020/042306
§ 371(c)(1), (2) Date May 10, 2023,
PCT Pub. No. WO2022/102063, PCT Pub. Date May 19, 2022.
Prior Publication US 2023/0421210 A1, Dec. 28, 2023
Int. Cl. H04K 1/10 (2006.01); H04B 7/0413 (2017.01); H04L 25/03 (2006.01); H04L 27/28 (2006.01)
CPC H04B 7/0413 (2013.01) [H04L 25/03006 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A wireless communication system that performs wireless communication between a transmission device and a receiving device in conformity with an SC-MIMO scheme,
wherein the transmission device includes
a training signal generation circuit that generates a predetermined existing signal used for the receiving device to estimate a communication channel response, and
a transmission beam-forming circuit that forms a transmission beam for removing interstream interference with a transmission weight calculated based on the communication channel response estimated by the receiving device, and
wherein the receiving device includes
a communication channel estimation circuit that receives the existing signal and estimates a communication channel response between multiple antenna pairs to form a plurality of estimated channel matrices, where each antenna pair includes an antenna of the transmission device and an antenna of the receive device,
a combination circuit that combines the plurality of estimated channel matrices for each stream estimated with the existing signal from which the interstream interference has been removed, and
an equalization circuit that performs an equalization process of removing intersymbol interference for each stream with the reception weight calculated based on the communication channel responses combined by the combination circuit.