公开(公告)号：US07769390B2

公开(公告)日：2010-08-03

申请号：US11059962

申请日：2005-02-17

申请人： Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee

发明人： Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee

IPC分类号： H04W72/00

CPC分类号： H04B7/0604 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0822 ,  H04B7/0854

摘要： A method for transmitting and receiving data in a multiuser Multiple-Input Multiple-Output (MIMO) system including a base station connected to a plurality of user equipments. In the method, each of the user equipments separately calculates channel capacity information using a linear reception scheme and a nonlinear reception scheme, and feeds back the calculated channel capacity information to the base station. The base station separately calculates system capacities using at least two different antenna scheduling schemes based on the channel capacity information fed back from the user equipments, and allocates antennas to the user equipments using a selected antenna scheduling scheme having higher system capacity out of the two antenna scheduling schemes.

摘要翻译： 一种用于在包括连接到多个用户设备的基站的多用户多输入多输出（MIMO）系统中发送和接收数据的方法。 在该方法中，每个用户设备使用线性接收方式和非线性接收方式分别计算信道容量信息，并将计算出的信道容量信息反馈给基站。 基站基于从用户设备反馈的信道容量信息，使用至少两个不同的天线调度方案分别计算系统容量，并且使用在两个天线中具有较高系统容量的选定的天线调度方案向用户设备分配天线 调度方案

公开(公告)号：US07746947B2

公开(公告)日：2010-06-29

申请号：US11274662

申请日：2005-11-15

申请人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

发明人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

IPC分类号： H04B7/04

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0634

摘要： A multiple-input multiple-output (MIMO) communication system is provided for communication between a transmission apparatus having a plurality of transmission antennas and a reception apparatus having a plurality of reception antennas. The reception apparatus performs singular value decomposition (SVD) on channel information for a channel established to the transmission apparatus, and feeds back the SVD-decomposed channel information to the transmission apparatus. The transmission apparatus receives the SVD-decomposed channel information from the reception apparatus, performs QR decomposition on the received SVD-decomposed channel information, and sets multiple transmission antennas to be allocated to the channel, thereby performing beamforming.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统，用于具有多个发送天线的发送装置与具有多个接收天线的接收装置之间的通信。 接收装置对发送装置建立的信道的信道信息进行奇异值分解（SVD），并将SVD分解信道信息反馈给发送装置。 发送装置从接收装置接收SVD分解信道信息，对所接收的SVD分解信道信息进行QR分解，并设定要分配给信道的多个发送天线，从而进行波束形成。

公开(公告)号：US20050192019A1

公开(公告)日：2005-09-01

申请号：US11059962

申请日：2005-02-17

申请人： Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee

发明人： Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/155 ,  H04J99/00 ,  H04M1/00

CPC分类号： H04B7/0604 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0822 ,  H04B7/0854

摘要： A method for transmitting and receiving data in a multiuser Multiple-Input Multiple-Output (MIMO) system including a base station connected to a plurality of user equipments. In the method, each of the user equipments separately calculates channel capacity information using a linear reception scheme and a nonlinear reception scheme, and feeds back the calculated channel capacity information to the base station. The base station separately calculates system capacities using at least two different antenna scheduling schemes based on the channel capacity information fed back from the user equipments, and allocates antennas to the user equipments using a selected antenna scheduling scheme having higher system capacity out of the two antenna scheduling schemes.

摘要翻译： 一种用于在包括连接到多个用户设备的基站的多用户多输入多输出（MIMO）系统中发送和接收数据的方法。 在该方法中，每个用户设备使用线性接收方式和非线性接收方式分别计算信道容量信息，并将计算出的信道容量信息反馈给基站。 基站基于从用户设备反馈的信道容量信息，使用至少两个不同的天线调度方案分别计算系统容量，并且使用在两个天线中具有较高系统容量的选定的天线调度方案向用户设备分配天线 调度方案

公开(公告)号：US08442448B2

公开(公告)日：2013-05-14

申请号：US11772325

申请日：2007-07-02

申请人： Sung-Jin Kim ,  Yong-Xing Zhou ,  Ho-Jin Kim ,  Jung-Hoon Suh ,  Chang-Soon Park

发明人： Sung-Jin Kim ,  Yong-Xing Zhou ,  Ho-Jin Kim ,  Jung-Hoon Suh ,  Chang-Soon Park

IPC分类号： H04B1/00

CPC分类号： H04B7/0632 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/0452 ,  H04B17/309

摘要： An apparatus and method for transmitting and/or receiving data in a closed-loop multi-antenna system, the method of receiving data including: acquiring CQIs of data streams by channel estimation of a received signal; selecting at least one CQI from among the acquired CQIs; calculating a common CQI using the acquired CQIs; generating feedback information with the at least one CQI, the common CQI, and an index of a data stream with the at least one CQI; and transmitting the feedback information to a transmitter.

摘要翻译： 一种用于在闭环多天线系统中发送和/或接收数据的装置和方法，所述接收数据的方法包括：通过接收信号的信道估计来获取数据流的CQI; 从所获取的CQI中选择至少一个CQI; 使用所获取的CQI来计算公共CQI; 利用所述至少一个CQI产生反馈信息，所述公共CQI以及具有所述至少一个CQI的数据流的索引; 并将反馈信息发送到发射机。

公开(公告)号：US07941186B2

公开(公告)日：2011-05-10

申请号：US11782629

申请日：2007-07-24

申请人： Myeon-Kyun Cho ,  Sung-Jin Kim ,  Ho-Jin Kim ,  Cheol-Woo You

发明人： Myeon-Kyun Cho ,  Sung-Jin Kim ,  Ho-Jin Kim ,  Cheol-Woo You

IPC分类号： H04M1/00 ,  H04W4/00 ,  H04B7/216

CPC分类号： H04W72/085 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0697 ,  H04L1/0026

摘要： An apparatus and method for scheduling a multiuser and a single user in a Multiple Input Multiple Output (MIMO) system are provided. The method for scheduling a multiuser and a single user at BS in MIMO system includes determining ratios of MultiUser-MIMO (MU-MIMO) chunks and Single User-MIMO (SU-MIMO) chunks to allocation chunks, determining the MU-MIMO chunks in the determined ratio and the remaining chunks as the SU-MIMO chunks, transmitting chunk information relating to the determined chunks to one or more Mobile Stations (MSs), and, when Channel Quality Information (CQI) feedback information relating to the determined MU-MIMO chunks and the determined SU-MIMO chunks is received from the MSs, allocating chunks and streams for MU-MIMO/SU-MIMO to users who maximize overall capacity using the CQI feedback information.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）系统中调度多用户和单个用户的装置和方法。 在MIMO系统中在BS处调度多用户和单个用户的方法包括：将多用户MIMO（MU-MIMO）块和单用户MIMO（SU-MIMO）块的比率确定为分组块，确定MU-MIMO块中的MU-MIMO块 确定的比率和剩余的块作为SU-MIMO块，将与所确定的块相关的块信息发送到一个或多个移动站（MS），以及当与确定的MU-MIMO相关的信道质量信息（CQI）反馈信息 块，并且从MS接收确定的SU-MIMO块，将用于MU-MIMO / SU-MIMO的块和流分配给使用CQI反馈信息最大化总体容量的用户。

公开(公告)号：US20060120478A1

公开(公告)日：2006-06-08

申请号：US11274662

申请日：2005-11-15

申请人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

发明人： Sung-Jin Kim ,  Ho-Jin Kim ,  Kwang-Bok Lee ,  Ki-Ho Kim ,  Hyoung-Woon Park ,  Jae-Hak Chung ,  Chan-Byoung Chae ,  Won-Il Roh

IPC分类号： H04L1/02

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0634

摘要： A multiple-input multiple-output (MIMO) communication system is provided for communication between a transmission apparatus having a plurality of transmission antennas and a reception apparatus having a plurality of reception antennas. The reception apparatus performs singular value decomposition (SVD) on channel information for a channel established to the transmission apparatus, and feeds back the SVD-decomposed channel information to the transmission apparatus. The transmission apparatus receives the SVD-decomposed channel information from the reception apparatus, performs QR decomposition on the received SVD-decomposed channel information, and sets multiple transmission antennas to be allocated to the channel, thereby performing beamforming.

摘要翻译： 提供了一种多输入多输出（MIMO）通信系统，用于具有多个发送天线的发送装置与具有多个接收天线的接收装置之间的通信。 接收装置对发送装置建立的信道的信道信息进行奇异值分解（SVD），并将SVD分解信道信息反馈给发送装置。 发送装置从接收装置接收SVD分解信道信息，对所接收的SVD分解信道信息进行QR分解，并设定要分配给信道的多个发送天线，从而进行波束形成。

公开(公告)号：US07675988B2

公开(公告)日：2010-03-09

申请号：US11180264

申请日：2005-07-13

申请人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

发明人： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/061 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04W52/262

摘要： An apparatus and method for performing beamforming or transmitting a plurality of bit streams output through Adaptive Modulation and Coding (AMC) via a plurality of transmission antennas in a base station using a multi-antenna scheme. The apparatus and method include classifying the plurality of transmission antennas into a plurality of transmission antenna groups; selecting one of the transmission antenna groups depending on a group selection signal being fed back from a mobile station; and outputting each of the bit streams to its associated transmission antenna among the transmission antennas constituting the selected transmission antenna group.

摘要翻译： 一种用于通过使用多天线方案的基站中的多个发送天线执行波束成形或发送通过自适应调制和编码（AMC）输出的多个比特流的装置和方法。 该装置和方法包括将多个发射天线分类成多个发射天线组; 根据从移动台反馈的组选择信号选择发送天线组中的一个; 并且在构成所选择的发送天线组的发送天线之间将每个比特流输出到其相关的发送天线。

公开(公告)号：US20080096488A1

公开(公告)日：2008-04-24

申请号：US11645415

申请日：2006-12-26

申请人： Myeon-Gyun Cho ,  Sung-Jin Kim ,  Ho-Jin Kim ,  In-Soo Hwang

发明人： Myeon-Gyun Cho ,  Sung-Jin Kim ,  Ho-Jin Kim ,  In-Soo Hwang

IPC分类号： H04B1/00 ,  H04B1/02

CPC分类号： H04B7/0417 ,  H04B7/0632

摘要： For data transmission/reception in a communication system, a transmitter precodes data to be transmitted via at least two antennas, with use of at least one precoding matrix of a predetermined rank, and transmits the precoded data to a receiver. A receiver receives a signal which is precoded with a precoding matrix of a predetermined rank, detects the precoding matrix, calculates a sum rate corresponding to the detected precoding matrix, and feeds back quality information on a channel formed between a transmitter and the receiver when the calculated sum rate falls within a predetermined rank among sum rates calculated for all precoding matrixes.

摘要翻译： 对于通信系统中的数据发送/接收，发送器利用至少一个预定等级的预编码矩阵，经由至少两个天线来对数据进行发送，并将预编码的数据发送到接收机。 接收机接收用预定秩的预编码矩阵预编码的信号，检测预编码矩阵，计算与检测到的预编码矩阵相对应的和速率，并且当发送机与接收机之间形成的信道上的质量信息反馈时 计算出的和速率落入针对所有预编码矩阵计算的总和速率之内的预定等级。

公开(公告)号：US20070249401A1

公开(公告)日：2007-10-25

申请号：US11702907

申请日：2007-02-06

申请人： Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

发明人： Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

IPC分类号： H04M1/00

CPC分类号： H04B7/0452 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0689 ,  H04B7/0691

摘要： A method is provided a method for transmitting data in a MIMO communication system. The method includes receiving feedback information including channel quality information of transmission antennas from terminals; selecting one of a multi-user mode and a single user mode according to the channel quality information; extracting information for the selected mode from the feedback information; selecting at least one terminal and a preceding matrix of at least one transmission antenna through which data is transmitted according to the extracted information and the selected mode; and transmitting data using the selected precoding matrix and information of the selected terminal.

摘要翻译： 提供了一种在MIMO通信系统中发送数据的方法。 该方法包括从终端接收包括发送天线的信道质量信息的反馈信息; 根据信道质量信息选择多用户模式和单用户模式之一; 从反馈信息中提取所选模式的信息; 根据所提取的信息和所选择的模式，选择数据被发送的至少一个发射天线的至少一个终端和前一矩阵; 以及使用所选择的预编码矩阵和所选择的终端的信息来发送数据。

公开(公告)号：US20070049208A1

公开(公告)日：2007-03-01

申请号：US11504798

申请日：2006-08-15

申请人： Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-Jin Kim

发明人： Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-Jin Kim

IPC分类号： H04B7/00

CPC分类号： H04B7/0626 ,  H04B7/0634 ,  H04W72/1257

摘要： A mobile communication apparatus that utilizes multiple base station/mobile station antennas and a mobile communication method performed therein are provided. The mobile communication apparatus includes a base station having at least two antennas and at least two mobile stations having at least one antenna, respectively. The base station restores weight information and channel status information from feedback signals received from the mobile stations, determines downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information, selects mobile stations for simultaneous transmission based on the downlink investigation information, and processes data to be transmitted to the selected mobile stations based on the downlink investigation information.

摘要翻译： 提供了利用多个基站/移动台天线的移动通信装置及其中执行的移动通信方法。 移动通信装置包括具有至少两个天线的基站和至少两个具有至少一个天线的移动台。 基站从从移动站接收到的反馈信号中恢复加权信息和信道状态信息，基于恢复的权重信息和信道状态信息确定导致最大传输信道容量的下行链路调查信息，基于 下行链路调查信息，并且基于下行链路调查信息处理要发送到所选择的移动站的数据。