US 12,126,412 B2
Orientation-robust operation of tri-polarized antenna array
Maksym Girnyk, Solna (SE); and Jonas Medbo, Uppsala (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 18/031,776
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 14, 2020, PCT No. PCT/EP2020/078877
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/078588, PCT Pub. Date Apr. 21, 2022.
Prior Publication US 2023/0387982 A1, Nov. 30, 2023
Int. Cl. H04B 7/06 (2006.01)
CPC H04B 7/0617 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method of controlling wireless transmissions, the method comprising:
a wireless communication device performing wireless transmissions via an antenna array of the wireless communication device, the antenna array comprising multiple antenna elements with a first polarization, a second polarization, and a third polarization; and
for at least some of the wireless transmissions, the wireless communication device performing beamforming processing by:
for the first polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a first beamforming vector;
for the second polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a second beamforming vector, and
for the third polarization, weighting antenna signals each corresponding to a respective one of the multiple antenna elements by a third beamforming vector, wherein
the first beamforming vector, the second beamforming vector, and the third beamforming vector result in spatial variations of an array factor of the antenna array which are reduced as compared to performing the beamforming processing of the signals without weighting the signals.