The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2021
Filed:
Jan. 31, 2018
Lg Electronics Inc., Seoul, KR;
Sogang University Research Foundation, Seoul, KR;
Haewook Park, Seoul, KR;
Changhyeon Kim, Seoul, KR;
Sungin Shin, Gyeonggi-do, KR;
Wonjin Sung, Seoul, KR;
Hyukjun Lee, Gyeonggi-do, KR;
Jonghyun Park, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Sogang University Research Foundation, Seoul, KR;
Abstract
A method for reporting channel state information of a terminal comprises: a step of measuring CSI-RS transmitted from a base station; and a step of reporting CSI generated on the basis of the CSI-RS measurement to the base station, wherein the CSI comprises: a PMI for indicating a precoding matrix from a codebook and an RI for indicating a rank, wherein the PMI comprises a first PMI for a beam group selected by the terminal and a second PMI which comprises a beam sub-group selection information for beams included in the beam group and phase-matching information for each antenna port polarization for the selected beam sub-group, and wherein as the rank increases, the phase-matching information may be indicated with different granularity from each other depending on whether the beam sub-groups selected from the beam group are the same or different.