Patent ID: 11936449
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A base station (BS) comprising:
a processor configured to generate configuration information about a channel state information (CSI) report, the configuration information including a parameter d≥1, where d is a number of principal components; and
a transceiver operably coupled to the processor, the transceiver configured to:
transmit the configuration information; and
receive the CSI report including a precoding matrix indicator (PMI), the PMI indicating principal singular values, wherein the principal singular values are based on adaptive codebooks,
wherein:
a first principal singular value is selected from a first base codebook,
a j-th principal singular value is selected from a scaled version of the first base codebook, and
a scaling factor is computed based on a j−1 principal singular value, where j is equal to one of: 1, . . . , d−1.