公开(公告)号：US20170373745A1

公开(公告)日：2017-12-28

申请号：US15540877

申请日：2015-12-18

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun PARK ,  Hosik KANG ,  Junyeub SUH ,  Wonjin SUNG ,  Kijun KIM

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0639 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04L25/0224 ,  H04L25/03343

Abstract: A method for performing, by a UE, precoding using a codebook in a wireless communication system includes: receiving a reference signal for channel estimation from an eNB; estimating a channel through the received reference signal; determining a precoding matrix related to the estimated channel in a codebook; and feeding back, to the eNB, a precoding matrix index (PMI) corresponding to the determined precoding matrix, wherein the codebook is generated in consideration of at least one of a region to which the UE belongs and the position of the UE.

公开(公告)号：US20160007340A1

公开(公告)日：2016-01-07

申请号：US14769010

申请日：2014-03-14

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun PARK ,  Byounghoon KIM ,  Jihoon SUNG ,  Wonjin SUNG ,  Kijun KIM

IPC: H04W72/04 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04B7/0417 ,  H04B7/0626 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0092

Abstract: A method for reporting channel state information (CSI) in a wireless communication system and an apparatus therefor are disclosed. According to an example of the present invention, a method in which a terminal transmits CSI in a wireless communication system may comprise: a step of receiving data about a feedback antenna port configuration from a base station; and a step of transmitting CSI regarding K (K≧1) feedback antenna ports from each of N (N≧2) reporting resources to the base station. The K feedback antenna ports may be a part of M (M≧2) antenna ports. The CSI regarding K feedback antenna ports may include phase information about the K feedback antenna ports. The phase information about the K feedback antenna ports may be determined by assuming a phase difference with respect to a reference antenna port.

Abstract translation: 公开了一种用于在无线通信系统及其装置中报告信道状态信息（CSI）的方法。 根据本发明的示例，终端在无线通信系统中发送CSI的方法可以包括：从基站接收关于反馈天线端口配置的数据的步骤; 以及从N（N≥2）个报告资源中的每一个向基站发送关于K（K≥1）个反馈天线端口的CSI的步骤。 K反馈天线端口可以是M（M≥2）个天线端口的一部分。 关于K反馈天线端口的CSI可以包括关于K个反馈天线端口的相位信息。 可以通过假设相对于参考天线端口的相位差来确定关于K个反馈天线端口的相位信息。