公开(公告)号：US09999074B2

公开(公告)日：2018-06-12

申请号：US15316544

申请日：2016-01-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Hyun Moon ,  Cheulsoon Kim ,  Wooram Shin ,  Gi Yoon Park ,  Young Jo Ko ,  Junyoung Nam

IPC: H04W74/00 ,  H04B7/06 ,  H04L5/00 ,  H04L12/911

CPC classification number: H04W74/006 ,  H04B7/02 ,  H04B7/024 ,  H04B7/0469 ,  H04B7/06 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04L47/824

Abstract: A method for a base station to configure a channel state information (CSI)-reference signal (RS) is provided. The base station configures a CSI-RS antenna port for a terminal. The base station selects one of at least one port number mapping rule for mapping a port number on the CSI-RS antenna port for the terminal. The base station notifies the terminal of the selected port number mapping rule.

公开(公告)号：US09800305B2

公开(公告)日：2017-10-24

申请号：US14935107

申请日：2015-11-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Junyoung Nam ,  Wooram Shin ,  Sung-Hyun Moon ,  Cheulsoon Kim ,  Young Jo Ko

IPC: H04L1/02 ,  H04B7/0452 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0658

Abstract: Disclosed herein are a terminal and an operation method thereof in a MIMO system. The terminal may use a reference signal for channel state measurement from a base station to calculate a first value that is a ratio of a signal transmitted from the base station to noise and a second value that is a ratio of interference from the base station and the noise. Further, the terminal may generate bit information by comparing a ratio of the second value and the first value with a predetermined threshold value and feedback the first value and the bit information to the base station.

公开(公告)号：US09787387B2

公开(公告)日：2017-10-10

申请号：US15153887

申请日：2016-05-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Hyun Moon ,  Cheulsoon Kim ,  Gi Yoon Park ,  Wooram Shin ,  Young Jo Ko ,  Junyoung Nam

IPC: H04L27/00 ,  H04B7/06 ,  H04B7/10

CPC classification number: H04B7/0691 ,  H04B7/0617 ,  H04B7/10

Abstract: The transmitter maps an antenna port to a logical antenna port through a first virtualization. The transmitter maps the logical antenna port to a transceiver unit (TXRU) through a first operation. The transmitter maps the TXRU to a logical TXRU through a second operation. The transmitter maps the logical TXRU to a physical antenna element through a second virtualization.

公开(公告)号：US20150103801A1

公开(公告)日：2015-04-16

申请号：US14474932

申请日：2014-09-02

Applicant: Electronics and Telecommunications Research Institute ,  Kongju National University Industry Academia Cooperation Group

Inventor： Junyoung Nam ,  Bangwon Seo ,  Jae Young Ahn

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04L5/0016 ,  H04L5/0051

Abstract: A method and apparatus for transmitting a signal for channel estimation through a plurality of antennas are provided. A plurality of resources that are adjacent to each other in a time axis and a frequency axis are selected from among a set of resources that include a symbol in the time axis and a subcarrier in the frequency axis. Reference signals for the plurality of antennas are transmitted through the selected plurality of resources.

Abstract translation: 提供了一种用于通过多个天线发送用于信道估计的信号的方法和装置。 从包括时间轴上的符号的资源集合和频率轴上的副载波中选择在时间轴和频率轴上彼此相邻的多个资源。 通过所选择的多个资源发送多个天线的参考信号。

公开(公告)号：US10057027B2

公开(公告)日：2018-08-21

申请号：US15149869

申请日：2016-05-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Cheulsoon Kim ,  Gi Yoon Park ,  Wooram Shin ,  Sung-Hyun Moon ,  Young Jo Ko ,  Junyoung Nam

IPC: H04L5/00

CPC classification number: H04L5/0048

Abstract: A method for receiving a reference signal including receiving a configuration about a subband from the base station through a higher layer signaling, wherein the RS is allocated to the subband; and receiving a subframe including a reference signal resource allocated by a unit of the subband, and an apparatus are provided.

公开(公告)号：US20150103934A1

公开(公告)日：2015-04-16

申请号：US14514569

申请日：2014-10-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Junyoung Nam ,  Juho Park ,  Jae Young Ahn

IPC: H04L27/26

CPC classification number: H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0639 ,  H04B7/066

Abstract: A method and apparatus for communication in millimeter wave multiple input multiple output (MIMO) communication are provided. A beamforming matrix by groups for terminals that are classified into a group is generated, and a pilot signal that is beam-formed based on the generated beamforming matrix by groups is transmitted to the terminals. Channel information based on the pilot signal is received from the terminals, hybrid beamforming scheduling is performed based on the channel information, and data is transmitted to the terminals based on the scheduling.

Abstract translation: 提供了一种用于毫米波多输入多输出（MIMO）通信中的通信的方法和装置。 生成分组为群组的终端的波束成形矩阵，并将基于生成的波束成形矩阵逐个波束形成的导频信号发送到终端。 从终端接收基于导频信号的信道信息，基于信道信息进行混合波束成形调度，并且基于调度将数据发送到终端。