US 12,335,007 B2
Channel state information report coefficients
Udar Mittal, Rolling Meadows, IL (US); Ahmed Monier Ibrahim Saleh Hindy, Aurora, IL (US); and Tyler Brown, Lake Zurich, IL (US)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Appl. No. 17/905,739
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
PCT Filed Mar. 1, 2021, PCT No. PCT/IB2021/051700
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2021/176334, PCT Pub. Date Sep. 10, 2021.
Claims priority of provisional application 62/986,587, filed on Mar. 6, 2020.
Prior Publication US 2023/0109788 A1, Apr. 13, 2023
Int. Cl. H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0617 (2013.01); H04B 7/0634 (2013.01); H04L 5/0051 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
receiving a set of reference signals;
identifying a set of ports based on the set of reference signals;
selecting a subset of ports from the set of ports;
computing a subset of coefficients corresponding to a set of indices for each reference signal in the set of reference signals; and
generating a channel state information report comprising the subset of coefficients corresponding to the set of indices for each port in the subset of ports;
wherein the set of reference signals are beamformed using a beamforming function that is a product of two matrices, a first matrix of the two matrices is a matrix with orthonormal columns drawn from a Fourier-based transform, and a second matrix of the two matrices comprises a product of a Kronecker-based product of a diagonal matrix with a vector.