US 11,812,393 B2
Transmission power allocation
Ulf Gustavsson, Gothenburg (SE); Christopher Mollén, Norrköping (SE); and Erik Larsson, Linköping (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/294,782
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Nov. 20, 2018, PCT No. PCT/EP2018/081867
§ 371(c)(1), (2) Date May 18, 2021,
PCT Pub. No. WO2020/104014, PCT Pub. Date May 28, 2020.
Prior Publication US 2022/0015041 A1, Jan. 13, 2022
Int. Cl. H04W 52/24 (2009.01); H04W 52/42 (2009.01)
CPC H04W 52/243 (2013.01) [H04W 52/242 (2013.01); H04W 52/42 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A transmission power allocation method for a transmitter, the transmitter comprising a number of at least two transmitter paths for spatial multiplexing of two or more signals to be transmitted using respective allocated transmission powers to respective ones of two or more users, each transmitter path comprising at least one component causing non-linear distortion and a transmit antenna, the method comprising:
determining a respective received distortion power for each of the two or more users, the determining being a function of respective hypothesized transmission powers for the two or more users, and the determining being based on a model of a spatial behavior of the non-linear distortion;
the determining the respective received distortion power including:
determining a distortion coefficient based on the model of the spatial behavior of the non-linear distortion; and
determining the respective received distortion power based on the distortion coefficient; and
allocating respective transmission powers for the two or more users based on the determined respective received distortion powers.