On demand channel state information measurement and reporting with adaptive receive antennas

An apparatus for wireless communication, 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 a message comprising an indication of a capability relating to an antenna configuration associated with channel state information reporting;
• transmit a channel state information reference signal based at least in part on the capability;
• and
• receive, based at least in part on the channel state information reference signal, a channel state information report, the channel state information report communicated in accordance with a power mode selected based at least in part on the antenna configuration associated with the channel state information reporting.

A method for wireless communication at a wireless device, comprising:

• selecting, based at least in part on a capability relating to an antenna configuration associated with channel state information reporting, a first power mode or a second power mode to receive channel state information reference signals, or physical data channels, or a combination thereof;
• transmitting a message comprising an indication of the capability;
• receiving, in accordance with the selected power mode, a channel state information reference signal using the antenna configuration;
• and
• transmitting, based at least in part on the channel state information reference signal, a channel state information report in accordance with the selected power mode the antenna configuration associated with the channel state information reporting.

A method for wireless communication at a wireless device, comprising:

• receiving a message comprising an indication of a capability relating to an antenna configuration associated with channel state information reporting;
• transmitting a channel state information reference signal based at least in part on the capability;
• and
• receiving, based at least in part on the channel state information reference signal, a channel state information report, the channel state information report communicated in accordance with a power mode selected based at least in part on the antenna configuration associated with the channel state information reporting.