Patent ID: 11888562
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A user equipment (UE) comprising:
a transceiver configured to:
receive configuration information for at least one channel state information reference signal (CSI-RS) resource that comprises a number (PCSIRS) of CSI-RS ports (PCSIRS CSI-RS ports); and
receive configuration information for channel state information (CSI) feedback that is based on a number (Q) of precoding dimensions (Q precoding dimensions),
wherein:
there is a mapping between the PCSIRS CSI-RS ports and the Q precoding dimensions, and
PCSIRS≠Q; and

a processor operably coupled to the transceiver, the processor configured to:
measure the PCSIRS CSI-RS ports;
determine a measurement for the Q precoding dimensions based on the mapping and the measurement for the PCSIRS CSI-RS ports; and
determine a CSI feedback based on the measurement for the Q precoding dimensions;

wherein the transceiver is further configured to transmit, over an uplink (UL) channel, the determined CSI feedback.