公开(公告)号：US11909472B2

公开(公告)日：2024-02-20

申请号：US17729457

申请日：2022-04-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Federico Penna ,  Hyukjoon Kwon ,  Dongwoon Bai ,  Jaein Kim ,  Junho Lee ,  Hui Won Je

IPC: H04L5/12 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0632 ,  H04L5/0094

Abstract: The disclosure provides a method of providing implicit channel state information (CSI) feedback from a user equipment (UE). The method includes determining a precoding matrix indicator (PMI) selection decision metric, selecting one of a sub-band (SB) linear combination coefficient (LCC) selection method, a wideband (WB) LCC selection method, or a sub-band group (SBG) LCC selection method, based on the determined PMI selection decision metric, determining, using the selected LCC selection method, PMI indices based on sub-bands configured by a base station, and transmitting the determined PMI indices to the base station.