公开(公告)号：WO2010019015A2

公开(公告)日：2010-02-18

申请号：PCT/KR2009004560

申请日：2009-08-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KYUNGHEE IACF ,  KIM JI HYUNG ,  SHIN WOORAM ,  KWON DONG SEUNG ,  YEH CHOONGIL ,  HONG EEN KEE

Inventor： KIM JI HYUNG ,  SHIN WOORAM ,  KWON DONG SEUNG ,  YEH CHOONGIL ,  HONG EEN KEE

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04B7/0639 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/444

Abstract: A method to generate a beamforming vector by a terminal includes receiving information on a first precoding matrix and a second precoding matrix from a serving base station; and generating a beamforming vector by linearly combining the first precoding matrix and the second precoding matrix.

Abstract translation: 由终端生成波束形成向量的方法包括从服务基站接收关于第一预编码矩阵和第二预编码矩阵的信息; 以及通过线性组合第一预编码矩阵和第二预编码矩阵来生成波束形成向量。

公开(公告)号：WO2009157723A3

公开(公告)日：2011-01-20

申请号：PCT/KR2009003437

申请日：2009-06-25

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  KIM JIHYUNG ,  SHIN WOORAM ,  KWON DONGSEUNG ,  KIM JU HYUP ,  HONG EEN KEE

Inventor： KIM JIHYUNG ,  SHIN WOORAM ,  KWON DONGSEUNG ,  KIM JU HYUP ,  HONG EEN KEE

IPC: H04L5/02 ,  H04L27/26 ,  H04W16/02

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0058 ,  H04L25/0226 ,  H04W72/082

Abstract: In a multicell communication system, a terminal that belongs to a second cell using the same subcarrier as a terminal that belongs to a first cell changes a pilot in an allocated basic resource block. Then, a base station that manages the first cell can estimate a channel of an interference signal transmitted from a second cell from a reception signal even though the reception signal includes an interference signal from the terminal that belongs to the second cell at the time of receiving a signal transmitted from the terminal that belongs to the first cell. Further, the base station that manages the first cell may reduce an interference signal from a reception signal by using a channel estimation value.

Abstract translation: 在多单元通信系统中，属于与属于第一小区的终端相同的子载波的第二小区的终端在所分配的基本资源块中改变导频。 然后，管理第一小区的基站也可以从接收信号估计从第二小区发送的干扰信号的信道，即使接收信号在接收时包括来自属于第二小区的终端的干扰信号 从属于第一小区的终端发送的信号。 此外，管理第一小区的基站可以通过使用信道估计值来减少来自接收信号的干扰信号。

公开(公告)号：WO2009131373A3

公开(公告)日：2009-12-23

申请号：PCT/KR2009002096

申请日：2009-04-22

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  SONG YOUNG SEOG ,  LEE SEUNG JOON ,  KIM JI HYUNG ,  YEH CHOONG IL ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

Inventor： KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  SONG YOUNG SEOG ,  LEE SEUNG JOON ,  KIM JI HYUNG ,  YEH CHOONG IL ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

IPC: H04B7/02

CPC classification number: H04L1/06 ,  H04B7/0639 ,  H04L1/1867 ,  H04L1/1893

Abstract: The present invention relates to an apparatus and a method for selection of a precoding matrix. In the present invention, a precoding matrix to enable an effective signal-to-noise ratio (ESNR) to have a maximum value with respect to a signal vector that requires retransmission is selected in a codebook and fed back to a transmitter. Accordingly, since the effective signal-to-noise ratio has the maximum value after the signal vector is retransmitted, it is possible to minimize a reception error probability of retransmission.

Abstract translation: 本发明涉及用于选择预编码矩阵的装置和方法。 在本发明中，在码本中选择能够使有效信噪比（ESNR）相对于需要重发的信号矢量具有最大值的预编码矩阵并反馈给发送机。 因此，由于有效的信噪比在重发信号矢量之后具有最大值，所以可以最小化重传的接收错误概率。

公开(公告)号：WO2010024645A3

公开(公告)日：2012-08-09

申请号：PCT/KR2009004899

申请日：2009-09-01

Applicant: KOREA ELECTRONICS TELECOMM ,  KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  YEH CHOONGIL ,  SONG YOUNG SEOG ,  KIM JI HUNG ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

Inventor： KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  YEH CHOONGIL ,  SONG YOUNG SEOG ,  KIM JI HUNG ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

IPC: H04B7/06 ,  H04L1/06 ,  H04L1/18

CPC classification number: H04L1/1812 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/06

Abstract: A device for generating a transmission codebook in a communication system including a multi- input multi-output (MIMO) antenna according to an embodiment of the present invention includes: a frequency determiner that determines a frequency to allow the transmission codebook to have an optimal characteristic; a precoding matrix generator that generates a precoding matrix on the basis of the frequency; and a codebook generator that generates a retransmission codebook to be used for retransmission on the basis of the precoding matrix and generates the transmission codebook on the basis of the retransmission codebook.

Abstract translation: 根据本发明实施例的用于在包括多输入多输出（MIMO）天线的通信系统中生成发送码本的装置包括：频率确定器，其确定允许发送码本具有最佳特性的频率 ; 预编码矩阵生成器，其基于所述频率生成预编码矩阵; 以及码本生成器，其基于预编码矩阵生成用于重发的重传码本，并且基于重发码本生成发送码本。

公开(公告)号：WO2009148272A3

公开(公告)日：2011-03-10

申请号：PCT/KR2009002971

申请日：2009-06-04

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS CO LTD ,  KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  YEH CHOONGIL ,  SONG YOUNG SEOG ,  LEE SEUNG JOON ,  KIM JI HYUNG ,  SHIN WOORAM ,  PARK BUM-SOO ,  KANG CHUNG GU ,  KIM JIN-WOO

Inventor： KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  YEH CHOONGIL ,  SONG YOUNG SEOG ,  LEE SEUNG JOON ,  KIM JI HYUNG ,  SHIN WOORAM ,  PARK BUM-SOO ,  KANG CHUNG GU ,  KIM JIN-WOO

IPC: H04L27/34

CPC classification number: H04L27/3405 ,  H04L1/1816 ,  H04L1/1893

Abstract: In a symbol mapping method, transmission data is encoded to output information bits and re¬ dundancy bits. The information bits and the redundancy bits are mapped to a symbol according to a first mapping scheme at a first transmission, and the information bits and the redundancy bits are mapped to a symbol according to a second mapping scheme at a second transmission.

Abstract translation: 在符号映射方法中，传输数据被编码以输出信息位和冗余位。 在第一次发送时，根据第一映射方案将信息比特和冗余比特映射到符号，并且在第二次传输时，根据第二映射方案将信息比特和冗余比特映射到符号。

公开(公告)号：EP2438690A4

公开(公告)日：2014-04-16

申请号：EP09810250

申请日：2009-09-01

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  YEH CHOONGIL ,  SONG YOUNG SEOG ,  KIM JI HYUNG ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

IPC: H04B7/06 ,  H04L1/06 ,  H04L1/18

CPC classification number: H04L1/1812 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/06

Abstract: A device for generating a transmission codebook in a communication system including a multi-input multi-output (MIMO) antenna according to an embodiment of the present invention includes: a frequency determiner that determines a frequency to allow the transmission codebook to have an optimal characteristic; a precoding matrix generator that generates a precoding matrix on the basis of the frequency; and a codebook generator that generates a retransmission codebook to be used for retransmission on the basis of the precoding matrix and generates the transmission codebook on the basis of the retransmission codebook.

公开(公告)号：EP2272179A4

公开(公告)日：2011-08-17

申请号：EP09734347

申请日：2009-04-22

Applicant: KOREA ELECTRONICS TELECOMM ,  SAMSUNG ELECTRONICS LTD

Inventor： KWON DONG SEUNG ,  KWAK BYUNG-JAE ,  SONG YOUNG SEOG ,  LEE SEUNG JOON ,  KIM JI HYUNG ,  YEH CHOONG IL ,  SHIN WOORAM ,  KANG CHUNG GU ,  KIM JIN-WOO

IPC: H04B7/02 ,  H04B7/06

CPC classification number: H04L1/06 ,  H04B7/0639 ,  H04L1/1867 ,  H04L1/1893

公开(公告)号：EP2316174A4

公开(公告)日：2012-07-18

申请号：EP09806877

申请日：2009-08-14

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KYUNGHEE IACF

Inventor： KIM JI HYUNG ,  SHIN WOORAM ,  KWON DONG SEUNG ,  YEH CHOONGIL ,  HONG EEN KEE

IPC: H04B7/06 ,  H04B7/04 ,  H04B7/08

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04B7/0639 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/444

Abstract: A method to generate a beamforming vector by a terminal includes receiving information on a first precoding matrix and a second precoding matrix from a serving base station; and generating a beamforming vector by linearly combining the first precoding matrix and the second precoding matrix.

Abstract translation: 的方法，以产生由终端的波束形成向量包括：接收在第一预编码矩阵和来自服务基站的第二预编码矩阵的信息; 并且由第一预编码矩阵和第二预编码矩阵进行线性组合来生成波束形成向量。