Polarization based beam selection process

A method for performing a beam selection process, the method being performed by a network node, the method comprising:

• transmitting reference signals during the beam selection process, wherein
• the beam selection process involves two consecutive beam sweeps to be performed using a set of direction beams,
• during each of the two consecutive beam sweeps the reference signals are sequentially transmitted in the set of direction beams as the directional beams are swept, and
• during the two consecutive beam sweeps, the reference signals are in a first subset of the directional beams transmitted with a first polarization, and the reference signals are in a second subset of the directional beams transmitted with a second polarization.

A non-transitory computer readable storage medium storing a computer program for performing a beam selection process, the computer program comprising computer code which, when run on processing circuitry of a network node, causes the network node to:

• transmit reference signals during the beam selection process, wherein
• the beam selection process involves two consecutive beam sweeps to be performed using a set of direction beams,
• during each of the two consecutive beam sweeps the reference signals are sequentially transmitted in the set of direction beams as the directional beams are swept, and
• during the two consecutive beam sweeps, the reference signals are in a first subset of the directional beams transmitted with a first polarization, and the reference signals are in a second subset of the directional beams transmitted with a second polarization.