Polarization diversity in time-domain beamforming

A network node comprising:

• processing circuitry;
• and
• memory coupled with the processing circuitry, wherein the memory includes instructions that when executed by the processing circuitry causes the network node to perform operations comprising:
• allocating each user equipment, UE, to a baseband port of a plurality of baseband ports such that there is more than one UE allocated to each of the plurality of baseband ports;
• and
• for each baseband port of the plurality of baseband ports:
• mapping the baseband port to a polarization of an antenna having multiple polarizations and to one beam of a plurality of beams, wherein a number of the plurality of beams matches a number of the multiple polarizations;
• and
• switching the polarization of a baseband port in a time domain to create time diversity of services towards the multiple UEs, wherein a UE is subject to a first polarization for a subset of time occasions and to a second polarization for other time occasions.

A computer program product comprising a non-transitory storage medium including program code to be executed by processing circuitry of a network node, whereby execution of the program code causes the network node to perform operations comprising:

• allocating each user equipment, UE, to a baseband port of a plurality of baseband ports such that there is more than one UE allocated to each of the plurality of baseband ports;
• and
• for each baseband port of the plurality of baseband ports:
• mapping the baseband port to a polarization of an antenna having multiple polarizations and to one beam of a plurality of beams, wherein a number of the plurality of beams matches a number of the multiple polarizations;
• and
• switching the polarization of a baseband port in a time domain to create time diversity of services towards the multiple UEs, wherein a UE is subject to a first polarization for a subset of time occasions and to a second polarization for other time occasions.