US 12,323,213 B2
Wideband extremely large array antenna system and OFDM-based hybrid beamforming method for hybrid-field interference control of the same
Hyuncheol Park, Daejeon (KR); and Hyunwoo Nam, Daejeon (KR)
Assigned to Korea Advanced Institute of Science and Technology, Daejeon (KR)
Filed by Korea Advanced Institute of Science and Technology, Daejeon (KR)
Filed on Jul. 13, 2023, as Appl. No. 18/352,124.
Claims priority of application No. 10-2022-0153701 (KR), filed on Nov. 16, 2022.
Prior Publication US 2024/0162962 A1, May 16, 2024
Int. Cl. H04B 7/06 (2006.01); H04B 7/04 (2017.01); H04L 5/00 (2006.01)
CPC H04B 7/066 (2013.01) [H04B 7/04026 (2023.05); H04L 5/0023 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An OFDM-based hybrid beamforming method of a wideband extremely large array antenna system, comprising:
designing a common analog beamforming matrix for all subcarriers between a transmitter and a receiver;
designing a baseband beamforming matrix for each of the subcarriers; and
after designing the baseband beamforming matrix, aligning data streams between the transmitter and the receiver through singular value decomposition.