US 12,176,980 B2
Technique for dual-polarized beamforming
Maksym Girnyk, Solna (SE); and Johan Axnäs, Solna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 18/026,390
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 16, 2020, PCT No. PCT/EP2020/075905
§ 371(c)(1), (2) Date Mar. 15, 2023,
PCT Pub. No. WO2022/058007, PCT Pub. Date Mar. 24, 2022.
Prior Publication US 2023/0387981 A1, Nov. 30, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04B 7/10 (2017.01)
CPC H04B 7/0617 (2013.01) [H04B 7/086 (2013.01); H04B 7/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of performing a beamformed transmission and/or a beam formed reception in a wireless communication using an antenna array comprising a first sub-array of first antenna elements each having a first polarization and a second sub-array of second antenna elements each having a second polarization that is orthogonal to the first polarization, the method comprising:
obtaining a first weight vector for the first sub-array of first antenna elements and a second weight vector for the second sub-array of second antenna elements, wherein the first weight vector and the second weight vector optimize a utility function, wherein the utility function comprises a first term depending on a first function of the first weight vector and on a second function of the second weight vector, and wherein the utility function further comprises a second term depending on either one of the first function and the second function; and
performing the beamformed transmission and/or the beamformed reception using the obtained first weight vector for the first sub-array of first antenna elements and the obtained second weight vector for the second sub-array of second antenna elements.