US 12,034,515 B2
Methods for indicating polarization capabilities of user equipment in a non-terrestrial network (NTN)
Olof Liberg, Enskede (SE); Xingqin Lin, San Jose, CA (US); Talha Khan, Santa Clara, CA (US); Helka-Liina Määttänen, Helsinki (FI); Mattias Frenne, Uppsala (SE); and Siva Muruganathan, Stittsville (CA)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/762,221
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 23, 2020, PCT No. PCT/EP2020/076572
§ 371(c)(1), (2) Date Mar. 21, 2022,
PCT Pub. No. WO2021/058567, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/905,716, filed on Sep. 25, 2019.
Prior Publication US 2022/0337308 A1, Oct. 20, 2022
Int. Cl. H04B 7/10 (2017.01); H04B 7/06 (2006.01); H04W 84/06 (2009.01)
CPC H04B 7/10 (2013.01) [H04B 7/0628 (2013.01); H04W 84/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for operating a user equipment (UE) in a non-terrestrial network (NTN) that utilizes one or more polarization modes for serving one or more cells, the method comprising:
sending, to a network node, an indication of one or more polarization capabilities of the UE; and
transmitting and/or receiving one or more signals or channels in a first cell of the NTN according to the indicated polarization capabilities of the UE, wherein:
the one or more signals or channels include a first physical downlink channel received in the first cell according to a first polarization mode that is indicated as supported by the UE;
the method further comprises receiving a second physical downlink channel received in the first cell or in a second cell, according to a second polarization mode indicated as supported by the UE;
the first and second polarization modes are orthogonal; and
the first and second physical downlink channels are received concurrently by the UE.