Channel condition estimation

A stationary access node for obtaining channel conditions per antenna element, the stationary access node comprising:

• N antenna elements in an antenna array with analog beamforming, wherein N>1;
• and
• processing circuitry being configured to cause the stationary access node to:
• communicate via a stationary radio propagation channel utilizing beams;
• obtain, for the stationary radio propagation channel, channel conditions for signals received by the stationary access node in M beams, where M>1, wherein the channel conditions comprise M channel estimates;
• and
• transform the M channel estimates for the M beams to N channel estimates for the N antenna elements by utilizing a relation based on beamforming weights that map the N antenna elements to the M beams, wherein
• the N channel estimates are channel estimates of the stationary radio propagation channel.

A wireless device comprising a radio transceiver device for obtaining channel estimates per antenna element, the radio transceiver device comprising:

• N antenna elements in an antenna array and being configured to communicate utilizing beams, wherein N>1;
• and
• processing circuitry being configured to cause the radio transceiver device to:
• obtain for a radio propagation channel, channel conditions for signals received by the radio transceiver device in M beams, where M>1, wherein the channel conditions comprise M channel estimates;
• and
• transform the M channel estimates for the M beams to N channel estimates for the N antenna elements, wherein
• the N channel estimates are channel estimates of the radio propagation channel.