Patent ID: 11936457
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A base station (BS), the BS comprising:
a transceiver configured to:
transmit channel state information (CSI) feedback configuration information to a user equipment (UE); and
receive, from the UE, CSI feedback including, for each layer l of a total number of ν layers, a strongest coefficient indicator (SCI) for indicating an index of a strongest coefficient among KNZ,l coefficients, wherein l∈{1, . . . , ν} is a layer index, ν≥1 is a rank value, SCIl is the SCI for layer l, KNZ,l is a number of non-zero coefficients for layer l, and a payload of the SCI for each layer of the total number of ν layers is based on the rank value; and

a processor operably coupled to the transceiver, the processor configured to:
generate the CSI feedback configuration information; and
obtain the strongest coefficient among the KNZ,l coefficients for each layer l of the total number of ν layers based on the SCIl for each layer of the total number of ν layers,

wherein, for each layer l, each index ml of the non-zero coefficients is remapped with respect to an index ml* associated with the strongest coefficient using a modulo function such that the index ml* is remapped to ml*=0, where ml*{0, 1, . . . , M−1}.