Beamforming for multi-aperture orbital angular momentum multiplexing based communication

A receiver of orbital angular momentum (OAM) multiplexing based communication, comprising:

• a memory;
• and one or more processors, coupled to the memory, configured to:
• receive, from a transmitter of the OAM multiplexing based communication, a plurality of reference signals corresponding to a plurality of aperture pairs, wherein a reference signal of the plurality of reference signals corresponds to an OAM mode of a corresponding aperture pair;
• transmit, to the transmitter, a feedback message comprising beamforming information based at least in part on the plurality of reference signals;
• and 39 receive, from the transmitter, a plurality of data streams that are beamformed based at least in part on the beamforming information.

A transmitter of orbital angular momentum (OAM) multiplexing based communication, comprising:

• a memory;
• and 41 one or more processors, coupled to the memory, configured to:
• transmit, to a receiver of the OAM multiplexing based communication, a plurality of reference signals corresponding to a plurality of aperture pairs, wherein a reference signal of the plurality of reference signals corresponds to an OAM mode of a corresponding aperture pair;
• receive, from the receiver, a feedback message comprising beamforming information based at least in part on the plurality of reference signals;
• and transmit, to the receiver, a plurality of data streams that are beamformed based at least in part on the beamforming information.