公开(公告)号：US20180076943A1

公开(公告)日：2018-03-15

申请号：US15714815

申请日：2017-09-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bruno CLERCKX ,  Jun Il CHOI ,  Ki Il KIM

IPC: H04L5/00 ,  H04W72/04 ,  H04W24/10 ,  H04B7/04 ,  H04B7/06 ,  H04L25/03 ,  H04L1/00

CPC classification number: H04L5/0057 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0036 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W24/10 ,  H04W72/0413

Abstract: Provided is a feedback method and apparatus in a multiple-input multiple-output (MIMO) communication system. A terminal may determine a preferred pre-coding matrix for a neighboring terminal, based on a reference rank determined by a base station and a preferred pre-coding matrix of the terminal. The terminal may calculate a channel quality indicator (CQI) based on the preferred precoding matrix for the neighboring terminal, and may feed the CQI back to the base station.

公开(公告)号：US20150172033A1

公开(公告)日：2015-06-18

申请号：US14599388

申请日：2015-01-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bruno CLERCKX ,  Jun Il CHOI ,  Ki Il KIM

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

CPC classification number: H04L5/0057 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0036 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W24/10 ,  H04W72/0413

Abstract: Provided is a feedback method and apparatus in a multiple-input multiple-output (MIMO) communication system. A terminal may determine a preferred pre-coding matrix for a neighboring terminal, based on a reference rank determined by a base station and a preferred pre-coding matrix of the terminal. The terminal may calculate a channel quality indicator (CQI) based on the preferred precoding matrix for the neighboring terminal, and may feed the CQI back to the base station.

Abstract translation: 提供了一种在多输入多输出（MIMO）通信系统中的反馈方法和装置。 终端可以基于由基站确定的参考秩和终端的优选预编码矩阵来确定相邻终端的优选预编码矩阵。 终端可以基于相邻终端的优选预编码矩阵来计算信道质量指示符（CQI），并且可以将CQI馈送给基站。

公开(公告)号：US20140162670A1

公开(公告)日：2014-06-12

申请号：US14177889

申请日：2014-02-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jun Il CHOI ,  Bruno CLERCKX ,  Ki KIM, II

IPC: H04B7/04 ,  H04W72/04

CPC classification number: H04B7/0486 ,  H03F1/3247 ,  H04B3/32 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0639 ,  H04L1/0003 ,  H04L25/03343 ,  H04L27/368 ,  H04W72/04

Abstract: A transmitter and a receiver of a multiple input multiple output (MIMO) communication system may use two codebooks to share channel information. When the transmitter uses eight transmit antennas, two codebooks may be defined. When the receiver generates two precoding matrix indicators from two codebooks, a combination of the two precoding matrix indicators may indicate a single precoding matrix. Precoding matrix candidates may also be defined.

Abstract translation: 多输入多输出（MIMO）通信系统的发射机和接收机可以使用两个码本来共享信道信息。 当发射机使用八个发射天线时，可以定义两个码本。 当接收器从两个码本生成两个预编码矩阵指示符时，两个预编码矩阵指示符的组合可以指示单个预编码矩阵。 还可以定义预编码矩阵候选。