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

Claim 7:
8. A base station (BS) comprising:
a processor configured to:
generate configuration information for at least one channel state information reference signal (CSI-RS) resource that comprises a number (PCSIRS) of ports CSI-RS (PCSIRS CSI-RS ports); and
generate 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 transceiver operably coupled to the processor, the transceiver configured to:
transmit the configuration information for the at least one CSI-RS resource;
transmit the configuration information for the CSI feedback;
transmit the at least one CSI-RS resource from the PCSIRS CSI-RS ports; and
receive, over an uplink (UL) channel, the CSI feedback;

wherein:
the CSI feedback is based on the Q precoding dimensions, and
the Q precoding dimensions are based on the mapping and the PCSIRS CSI-RS ports.