公开(公告)号：US20100104032A1

公开(公告)日：2010-04-29

申请号：US12581218

申请日：2009-10-19

Applicant: Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim

Inventor： Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim

IPC: H04L27/28

CPC classification number: H04L25/03343 ,  H04B7/0417 ,  H04B7/0639 ,  H04L2025/03808

Abstract: A multiple input multiple output (MIMO) communication method using a codebook is provided. The MIMO communication method may use one or more codebooks and the codebooks may change according to a transmission rank, a channel state of a user terminal, and/or a number of feedback bits.

Abstract translation: 提供了使用码本的多输入多输出（MIMO）通信方法。 MIMO通信方法可以使用一个或多个码本，并且码本可以根据传输秩，用户终端的信道状态和/或多个反馈比特来改变。

公开(公告)号：US20090323841A1

公开(公告)日：2009-12-31

申请号：US12476275

申请日：2009-06-02

Applicant: Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim ,  Sung Jin Kim

Inventor： Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim ,  Sung Jin Kim

IPC: H04K1/10

CPC classification number: H04B7/0478 ,  H04B7/0473 ,  H04B7/0639 ,  H04L25/03343 ,  H04L25/03923 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: A multiple input multiple output (MIMO) communication method using a codebook is provided. The MIMO communication method may use one or more codebooks and the codebooks may change according to a transmission rank, a channel state of a user terminal, and/or a number of feedback bits. The one or more codebooks may be adaptively updated according to a time correlation coefficient of a channel.

Abstract translation: 提供了使用码本的多输入多输出（MIMO）通信方法。 MIMO通信方法可以使用一个或多个码本，并且码本可以根据传输秩，用户终端的信道状态和/或多个反馈比特来改变。 可以根据信道的时间相关系数自适应地更新一个或多个码本。

公开(公告)号：US08401104B2

公开(公告)日：2013-03-19

申请号：US12581218

申请日：2009-10-19

Applicant: Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim

Inventor： Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim

IPC: H04L1/02 ,  H04L27/28

CPC classification number: H04L25/03343 ,  H04B7/0417 ,  H04B7/0639 ,  H04L2025/03808

Abstract: A multiple input multiple output (MIMO) communication method using a codebook is provided. The MIMO communication method may use one or more codebooks and the codebooks may change according to a transmission rank, a channel state of a user terminal, and/or a number of feedback bits.

Abstract translation: 提供了使用码本的多输入多输出（MIMO）通信方法。 MIMO通信方法可以使用一个或多个码本，并且码本可以根据传输秩，用户终端的信道状态和/或多个反馈比特来改变。

公开(公告)号：US08457233B2

公开(公告)日：2013-06-04

申请号：US12476275

申请日：2009-06-02

Applicant: Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim ,  Sung Jin Kim

Inventor： Bruno Clerckx ,  David Mazzarese ,  Ki Il Kim ,  Sung Jin Kim

IPC: H04L1/06

CPC classification number: H04B7/0478 ,  H04B7/0473 ,  H04B7/0639 ,  H04L25/03343 ,  H04L25/03923 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: A multiple input multiple output (MIMO) communication method using a codebook is provided. The MIMO communication method may use one or more codebooks and the codebooks may change according to a transmission rank, a channel state of a user terminal, and/or a number of feedback bits. The one or more codebooks may be adaptively updated according to a time correlation coefficient of a channel.

Abstract translation: 提供了使用码本的多输入多输出（MIMO）通信方法。 MIMO通信方法可以使用一个或多个码本，并且码本可以根据传输秩，用户终端的信道状态和/或多个反馈比特来改变。 可以根据信道的时间相关系数自适应地更新一个或多个码本。

公开(公告)号：US08724728B2

公开(公告)日：2014-05-13

申请号：US12957964

申请日：2010-12-01

Applicant: Jun Il Choi ,  Bruno Clerckx ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

Inventor： Jun Il Choi ,  Bruno Clerckx ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

IPC: H04B7/02

CPC classification number: H04B7/0482 ,  H04B7/0619 ,  H04B7/0641

Abstract: Provided is a method of generating an adaptive codebook and a multiple input multiple output (MIMO) communication system using the adaptive codebook. A transmitter and a receiver may generate, from a base codebook based on a matrix associated with statistics of a channel matrix, the adaptive codebook maintaining a unitary characteristic. The transmitter may perform scheduling, transmit filter design, and precoding using adaptive codebook based feedback information.

Abstract translation: 提供了一种使用自适应码本生成自适应码本和多输入多输出（MIMO）通信系统的方法。 发射机和接收机可以基于与信道矩阵的统计相关联的矩阵从基础码本生成维持单一特性的自适应码本。 发射机可以使用基于自适应码本的反馈信息来执行调度，发射滤波器设计和预编码。

公开(公告)号：US08498358B2

公开(公告)日：2013-07-30

申请号：US12429937

申请日：2009-04-24

Applicant: Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

Inventor： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

IPC: H04B7/02

CPC classification number: H04B7/0417

Abstract: Communication between a base station with multiple transmission antennas and a mobile station is provided. The base station and the mobile station may recognize or estimate, respectively, a channel between the base station and the mobile station, and update a previous codebook with a new codebook based on a variation of the channel. In this instance, the mobile station may provide feedback information to the base station using the new codebook, and the base station may generate a transmission signal for the mobile station using the new codebook and the feedback information.

Abstract translation: 提供了具有多个发送天线的基站与移动台之间的通信。 基站和移动台可以分别识别或估计基站和移动站之间的信道，并且基于信道的变化用新码本更新先前的码本。 在这种情况下，移动台可以使用新的码本向基站提供反馈信息，并且基站可以使用新的码本和反馈信息来生成针对移动台的发送信号。

公开(公告)号：US20120106470A1

公开(公告)日：2012-05-03

申请号：US13248166

申请日：2011-09-29

Applicant: Bruno Clerckx ,  Jun Il Choi ,  Ki Il Kim

Inventor： Bruno Clerckx ,  Jun Il Choi ,  Ki Il Kim

IPC: 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：US08160125B2

公开(公告)日：2012-04-17

申请号：US12109440

申请日：2008-04-25

Applicant: Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

Inventor： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

IPC: H04B1/38 ,  H04B7/02 ,  H04L1/02

CPC classification number: H04B7/0639

Abstract: A system is provided for performing downlink beamforming based on information fed back by a mobile station. The mobile station includes a channel matrix generation unit to generate a channel matrix with respect to channels ranging from a base station to a mobile station, the base station including multiple transmission antennas, a codebook updating unit to generate a second codebook including a plurality of second codeword matrixes based on the generated channel matrix and a first codebook including a plurality of first codeword matrixes, a codeword selection unit to select at least one transmission codeword matrix from among the plurality of second codeword matrixes, a transmission unit to transmit an index of the selected transmission codeword matrix to the base station, and a receiving unit to receive data transmitted from the base station via the multiple transmission antennas.

Abstract translation: 提供一种用于基于由移动台反馈的信息来执行下行链路波束成形的系统。 移动站包括：信道矩阵生成单元，生成相对于从基站到移动站的信道的信道矩阵，所述基站包括多个发送天线，码本更新单元，生成包含多个秒的第二码本 基于生成的信道矩阵的码字矩阵和包括多个第一码字矩阵的第一码本，从所述多个第二码字矩阵中选择至少一个发送码字矩阵的码字选择单元，发送所述多个第一码字矩阵的索引的发送单元， 所选择的发送码字矩阵到基站，接收单元经由多个发送天线接收从基站发送的数据。

公开(公告)号：US09319251B2

公开(公告)日：2016-04-19

申请号：US12979479

申请日：2010-12-28

Applicant: Junil Choi ,  Bruno Clerckx ,  Ki Il Kim ,  David J. Love ,  Tae Joon Kim

Inventor： Junil Choi ,  Bruno Clerckx ,  Ki Il Kim ,  David J. Love ,  Tae Joon Kim

IPC: H04L27/00 ,  H04L25/03 ,  H04L25/02 ,  H04B7/04

CPC classification number: H04L25/03343 ,  H04B7/0465 ,  H04B7/0478 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: Provided is a multiple input multiple output (MIMO) communication system using a codebook. A transmitter and a receiver included in the MIMO communication system may generate a codebook having a different size for each eigenvector of a channel matrix or a channel covariance matrix, based on eigenvalues of the channel matrix or the channel covariance matrix.

Abstract translation: 提供了使用码本的多输入多输出（MIMO）通信系统。 包括在MIMO通信系统中的发射机和接收机可以基于信道矩阵或信道协方差矩阵的特征值，生成对于信道矩阵或信道协方差矩阵的每个特征向量具有不同大小的码本。

公开(公告)号：US09094251B2

公开(公告)日：2015-07-28

申请号：US13022343

申请日：2011-02-07

Applicant: Bruno Clerckx ,  Jin Kyu Han ,  Heun Chul Lee ,  Young Jun Hong ,  Ki Il Kim

Inventor： Bruno Clerckx ,  Jin Kyu Han ,  Heun Chul Lee ,  Young Jun Hong ,  Ki Il Kim

IPC: H04K1/10 ,  H04L25/03 ,  H04B7/02 ,  H04B7/06

CPC classification number: H04L25/03343 ,  H04B7/024 ,  H04B7/063 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: Provided is a multiple input multiple output (MIMO) communication method and system that may exchange information associated with a coordinated rank for a neighbor cell. In a MIMO communication system, a target terminal may feed back the information associated with the coordinated rank to a serving base station, and the serving base station may exchange the information associated with the coordinated rank with the neighbor base station. The serving base station may perform precoding based on the exchanged information associated with the coordinated rank.

Abstract translation: 提供了可以交换与相邻小区的协调秩相关联的信息的多输入多输出（MIMO）通信方法和系统。 在MIMO通信系统中，目标终端可以将与协调秩相关联的信息反馈给服务基站，并且服务基站可以将与协调等级相关联的信息与相邻基站进行交换。 服务基站可以基于与协调等级相关联的交换的信息来执行预编码。