Beamformed transmission of an information channel

A network node for beamformed transmission of an information channel with dynamically changed beamforming weights, the network node comprising processing circuitry, the processing circuitry being configured to cause the network node to:

• obtain amplitude scaling factors and phase offset scaling factors for scaling the beamforming weights during transmission of the information channel;
• and
• perform beamformed transmissions of the information channel whilst applying the scaling factors to scale the beamforming weights to dynamically change the beamforming weights,
• wherein the amplitude scaling factors and the phase offset scaling factors are, according to a pattern, cycled through during S>1 transmissions of the information channel,
• wherein, according to the pattern, in frequency domain, for one and the same symbol, different amplitude scaling factors and different phase offset scaling factors are applied for at least two different groups of resource blocks, and
• wherein, according to the pattern, in time domain, different amplitude scaling factors and different phase offset scaling factors are applied for different transmissions of the information channel.

A computer program product for beamformed transmission of an information channel with dynamically changed beamforming weights, the computer program product comprising a non-transitory computer readable medium storing computer code which, when run on processing circuitry of a network node, causes the network node to:

• obtain amplitude scaling factors and phase offset scaling factors for scaling the beamforming weights during transmission of the information channel;
• and
• perform beamformed transmissions of the information channel whilst applying the scaling factors to scale the beamforming weights to dynamically change the beamforming weights,
• wherein the amplitude scaling factors and the phase offset scaling factors are, according to a pattern, cycled through during S>1 transmissions of the information channel,
• wherein, according to the pattern, in frequency domain, for one and the same symbol, different amplitude scaling factors and different phase offset scaling factors are applied for at least two different groups of resource blocks, and
• wherein, according to the pattern, in time domain, different amplitude scaling factors and different phase offset scaling factors are applied for different transmissions of the information channel.