Channel estimation based beam determination in holographic multiple-in multiple-out system

A method for wireless communication at a base station, comprising:

• transmitting, to a user equipment (UE), a first indication that the UE is within a distance threshold of multiple-in multiple-out (MIMO) communications from the base station;
• communicating with the UE via signaling that comprises a second indication of antenna panel information of at least one of the UE or the base station, the signaling transmitted by the UE or received at the UE based at least in part on the UE being within the distance threshold of the MIMO communications from the base station;
• transmitting, to the UE, a first beamformed signal on one or more first beams within the distance threshold of the MIMO communications;
• and
• transmitting, to the UE, one or more second beamformed signals on a second beam within the distance threshold of the MIMO communications, wherein the second beam is based at least in part on a channel response matrix that is estimated from at least the second indication and the first beamformed signal.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive, from a base station, a first indication that the UE is within a distance threshold of multiple-in multiple-out (MIMO) communications from the base station;
• communicate with the base station via signaling that comprises a second indication of antenna panel information of at least one of the UE or the base station, the signaling transmitted by the UE or received at the UE based at least in part on the UE being within the distance threshold of the MIMO communications from the base station;
• receive, from the base station, a first beamformed signal on one or more first beams within the distance threshold of the MIMO communications;
• and
• receive, from the base station, one or more second beamformed signals on a second beam within the distance threshold of the MIMO communications, wherein the second beam is based at least in part on a channel response matrix that is estimated from at least the second indication and the first beamformed signal.

An apparatus for wireless communication at a base station, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit, to a user equipment (UE), a first indication that the UE is within a distance threshold of multiple-in multiple-out (MIMO) communications from the base station;
• communicate with the UE via signaling that comprises a second indication of antenna panel information of at least one of the UE or the base station, the signaling transmitted by the UE or received at the UE based at least in part on the UE being within the distance threshold of the MIMO communications from the base station;
• transmit, to the UE, a first beamformed signal on one or more first beams within the distance threshold of the MIMO communications;
• and
• transmit, to the UE, one or more second beamformed signals on a second beam within the distance threshold of the MIMO communications, wherein the second beam is based at least in part on a channel response matrix that is estimated from at least the second indication and the first beamformed signal.