公开(公告)号：US07586981B2

公开(公告)日：2009-09-08

申请号：US10893439

申请日：2004-07-16

Applicant: Chan-Byoung Chae ,  Chang-Ho Suh ,  Katz Marcos Daniel ,  Seok-Hyun Yoon ,  Byoung-Yun Kim

Inventor： Chan-Byoung Chae ,  Chang-Ho Suh ,  Katz Marcos Daniel ,  Seok-Hyun Yoon ,  Byoung-Yun Kim

IPC: H04B1/00

CPC classification number: H04B7/086 ,  H04B7/0854

Abstract: A mobile communication system receives a reception signal, and determines a first error value by using a first scheme, and a second error value by using a second scheme, and determines a first scheme application weight according to a difference between the first error value and the second error value, and a second scheme application weight according to the difference between the first error value and the second error value, and generates a third error value using a scheme that combines the first scheme to which the first scheme application weight is applied and the second scheme to which the second scheme application weight is applied, and determines a reception beam weight using the reception signal, the third error value, and an output signal generated by applying the reception beam to the reception signal, wherein the reception beam weight is used for generating the reception beam.

Abstract translation: 移动通信系统接收接收信号，并通过使用第一方案确定第一误差值，使用第二方案确定第二误差值，并且根据第一误差值和 第二误差值和第二方案应用权重，并且使用将应用了第一方案应用权重的第一方案与第一方案应用权重与第二错误值组合的方案来生成第三错误值， 使用第二方案应用权重的第二方案，并且使用接收信号，第三误差值和通过将接收波束应用于接收信号而生成的输出信号来确定接收波束权重，其中使用接收波束权重 用于产生接收波束。

公开(公告)号：US07532660B2

公开(公告)日：2009-05-12

申请号：US10898777

申请日：2004-07-26

Applicant: Chan-Byoung Chae ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Byoung-Yun Kim ,  Jung-Min Ro

Inventor： Chan-Byoung Chae ,  Chang-Ho Suh ,  Young-Kwon Cho ,  Byoung-Yun Kim ,  Jung-Min Ro

IPC: H04B1/69

CPC classification number: H04B7/0634 ,  H04B1/707 ,  H04B7/0617 ,  H04B7/086

Abstract: Disclosed are a method and a system for transmitting/receiving signals in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. A first receiver calculates a reception weight value by using a de-spread signal of a reception signal for creating a reception beam of the first receiver and calculates a transmission weight value by using the calculated reception weight value for creating a transmission beam of the second transmitter, thereby creating feedback information including the transmission weight value. A first transmitter transmits the feedback information to a second receiver. The second receiver receives the feedback information and the second transmitter detects the transmission weight value from the feedback information received in the second receiver, and creates the transmission beam corresponding to the detected transmission weight value in order to transmit a signal by applying the transmission beam to the signal.

Abstract translation: 公开了一种使用多输入多输出自适应天线阵列方案在移动通信系统中发送/接收信号的方法和系统。 第一接收机通过使用用于创建第一接收机的接收波束的接收信号的去扩展信号来计算接收权重值，并通过使用计算出的接收权重值来计算发送权重值，以产生第二发送器的发送波束 从而产生包括发送权重值的反馈信息。 第一发射机将反馈信息发送到第二接收机。 第二接收机接收反馈信息，第二发射机从在第二接收机中接收的反馈信息中检测发射权重值，并创建与检测到的发射权重值对应的发射波束，以便通过将发射波束应用于 信号。

公开(公告)号：US07508880B2

公开(公告)日：2009-03-24

申请号：US11205669

申请日：2005-08-17

Applicant: Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

Inventor： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Won-Il Roh ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

IPC: H04B7/02

CPC classification number: H04L1/0606 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/0668 ,  H04L1/0681

Abstract: A space-time-frequency block coding apparatus and method in a transmitter with three transmit (Tx) antennas are provided. An input symbol sequence is transmitted through three Tx antennas according to a permutation method using a selected transmission matrix in order to improve the performance of an STFBC.

Abstract translation: 提供了具有三个发射（Tx）天线的发射机中的空时频块编码装置和方法。 根据使用选择的传输矩阵的置换方法，通过三个Tx天线传输输入符号序列，以便提高STFBC的性能。

公开(公告)号：US07499728B2

公开(公告)日：2009-03-03

申请号：US10899400

申请日：2004-07-26

Applicant: Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Marcos Daniel ,  Pan-Yuh Joo

Inventor： Chan-Byoung Chae ,  Chang-Ho Suh ,  Byoung-Yun Kim ,  Katz Marcos Daniel ,  Pan-Yuh Joo

IPC: H04M1/00

CPC classification number: H04B7/0634 ,  H04B7/0617 ,  H04B7/0854

Abstract: A method for transmitting and receiving weight information for creating transmission/reception beams in a mobile communication system using a multiple input multiple output adaptive antenna array scheme. The method includes a receiver receiving a predetermined signal, and differentially providing weights to a first scheme and a second scheme for minimizing an error between the received signal and a predetermined reference signal, thereby obtaining a minimum error value. The receiver generates a despread signal by despreading the received signal, produces a reception weight for creation of a reception beam by the receiver through calculation using the despread signal and the minimum error value, and produces a transmission weight for creation of a transmission beam by a counterpart transmitter through calculation using the reception weight and the minimum error value. The receiver generates predetermined feedback information including the transmission weight and a transmitter transmits the feedback information to a counterpart receiver.

Abstract translation: 一种用于在使用多输入多输出自适应天线阵列方案的移动通信系统中发送和接收用于创建发送/接收波束的加权信息的方法。 该方法包括接收预定信号的接收机，并且差分地提供第一方案的权重和用于最小化接收信号与预定参考信号之间的误差的第二方案，由此获得最小误差值。 接收机通过解扩接收的信号来产生解扩信号，通过使用去扩展信号和最小误差值的计算产生接收机通过接收机产生接收波束的接收权重，并产生用于通过 通过使用接收权重和最小误差值计算对方发射机。 接收机产生包括传输权重的预定反馈信息，并且发射机将反馈信息发送到对方接收机。

公开(公告)号：US20090016460A1

公开(公告)日：2009-01-15

申请号：US12156001

申请日：2008-05-29

Applicant: In-Soo Hwang ,  Jong-Hyung Kwun ,  David Mazzarese ,  Robert Heath, JR. ,  Chan-Byoung Chae

Inventor： In-Soo Hwang ,  Jong-Hyung Kwun ,  David Mazzarese ,  Robert Heath, JR. ,  Chan-Byoung Chae

IPC: H04B7/02

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0665

Abstract: An apparatus and method are provided for beamforming in a MIMO wireless communication system. A base station includes a first calculator that repeatedly calculates downlink beamforming vectors of the user terminals to calculate the optimal beamforming vectors for the user terminals, a quantizer that quantizes the downlink beamforming vectors in order to transmit information of the downlink beamforming vectors, a control channel transmitter that feeds forward information of the quantized downlink beamforming vectors to the user terminals, a second calculator that calculates the final downlink beamforming vectors of the user terminals, and a beamforming transmitter that sums the beamformed TX signals of the user terminals and transmits the summed TX signals through a plurality of TX antennas.

Abstract translation: 提供了一种用于MIMO无线通信系统中的波束成形的装置和方法。 基站包括：第一计算器，其重复地计算用户终端的下行链路波束成形向量，以计算用户终端的最佳波束成形向量;量化器，用于量化下行链路波束形成向量，以便发送下行链路波束形成向量的信息;控制信道 发送器，其将量化的下行链路波束成形向量的信息馈送给用户终端;计算用户终端的最终下行链路波束成形向量的第二计算器;以及与用户终端的波束形成的TX信号相加的波束成形发射机，并发送求和的TX 信号通过多个TX天线。

公开(公告)号：US07450532B2

公开(公告)日：2008-11-11

申请号：US11005398

申请日：2004-12-06

Applicant: Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Marcos Daniel ,  Seok Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Jae-Yoel Kim ,  Young-Kwon Cho

Inventor： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Marcos Daniel ,  Seok Hyun Yoon ,  Dong-Seek Park ,  Chang-Ho Suh ,  Jae-Yoel Kim ,  Young-Kwon Cho

IPC: H04J11/00

CPC classification number: H04B7/0417 ,  H04B7/0634 ,  H04L1/06

Abstract: Disclosed is a method for transmitting/receiving data by use of feedback information in a closed loop multi input multi output (MIMO) mobile communication system. The method includes the steps of feeding back transmission eigenvector selection information determined through a singular value decomposition (SVD) of a channel matrix and transmitting the transmission eigenvector selection information to a transmitter; and receiving the feedback transmission eigenvector selection information, selecting transmission data according to the received transmission eigenvector selection information, mapping the selected transmission data to at least one transmission antenna, and transmitting the transmission data to a receiver.

Abstract translation: 公开了一种在闭环多输入多输出（MIMO）移动通信系统中通过使用反馈信息发送/接收数据的方法。 该方法包括以下步骤：反馈通过信道矩阵的奇异值分解（SVD）确定的发送特征向量选择信息，并将发送特征向量选择信息发送给发送机; 以及接收所述反馈传输特征向量选择信息，根据接收到的传输特征向量选择信息选择传输数据，将所选择的传输数据映射到至少一个传输天线，以及将传输数据发送到接收机。

公开(公告)号：US20080260053A1

公开(公告)日：2008-10-23

申请号：US11809571

申请日：2007-06-01

Applicant: Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Won-Il Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

Inventor： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Won-Il Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

IPC: H04L27/28

CPC classification number: H04L1/0668 ,  H04B7/063 ,  H04B7/0669 ,  H04B7/0691 ,  H04L1/0625 ,  H04L1/0693

Abstract: An STFBC coding apparatus for a transmitter with four Tx antennas is provided. In the transmitter, an encoder generates a code symbol vector by encoding an input symbol sequence in a predetermined coding method. A grouping block permutes the elements of the code symbol vector by multiplying the code symbol vector by a permutation antenna grouping pattern selected among predetermined permutation antenna grouping patterns according to a predetermined order and outputs the permuted code symbol vector as a grouping symbol vector. OFDM (Orthogonal Frequency Division Multiplexing) modulators OFDM modulate the grouping symbol vectors and transmit OFDM modulated symbols through the four transmit antennas.

Abstract translation: 提供了一种用于具有四个Tx天线的发射机的STFBC编码装置。 在发送器中，编码器通过以预定的编码方式对输入符号序列进行编码来生成代码符号向量。 分组块通过将代码符号向量乘以按照预定顺序从预定的置换天线分组模式中选择的置换天线分组模式来排列代码符号向量的元素，并将该排列的代码符号向量作为分组符号向量输出。 OFDM（正交频分复用）调制器OFDM调制分组符号向量并通过四个发射天线发射OFDM调制符号。

公开(公告)号：US07389464B2

公开(公告)日：2008-06-17

申请号：US11052673

申请日：2005-02-07

Applicant: Hong-Sil Jeong ,  Seok-Hyun Yoon ,  Jae-Yoel Kim ,  Chan-Byoung Chae

Inventor： Hong-Sil Jeong ,  Seok-Hyun Yoon ,  Jae-Yoel Kim ,  Chan-Byoung Chae

IPC: H03M13/25 ,  H03M13/29 ,  H04B7/06 ,  H04B7/07

CPC classification number: H04L1/0057 ,  H03M13/1102 ,  H04L1/0625 ,  H04L1/0631

Abstract: In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.

Abstract translation: 在包括发射机和接收机的移动通信系统中，通过编码所接收的信息数据来生成LDPC码，使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵 第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列，以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵， 第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。 通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。

公开(公告)号：US20080113632A1

公开(公告)日：2008-05-15

申请号：US11665888

申请日：2005-11-04

Applicant: Chan-Byoung Chae ,  Hong-Sil Jeong ,  Sung-Ryul Yun ,  Won-II Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

Inventor： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Sung-Ryul Yun ,  Won-II Roh ,  Jeong-Tae Oh ,  Kyun-Byoung Ko ,  Young-Ho Jung ,  Seung-Hoon Nam ,  Jae-Hak Chung

IPC: H04B1/02

CPC classification number: H04L1/0668 ,  H04L27/36

Abstract: The present invention relates to a transmitter and a transmission method in communication system using three Tx antennas in order to maximize STFBC coding gain. An input symbol sequence is transmitted through a plurality of Tx antennas in a predetermined method.

Abstract translation: 本发明涉及使用三个Tx天线的通信系统中的发射机和传输方法，以便使STFBC编码增益最大化。 输入符号序列通过多个Tx天线以预定方法发送。

公开(公告)号：US07366090B2

公开(公告)日：2008-04-29

申请号：US10819502

申请日：2004-04-07

Applicant: Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

Inventor： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

IPC: H04J11/00

CPC classification number: H04L27/2613

Abstract: A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length-2×M×N preamble sequence, where 2×M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to 2×M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the 2×M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.

Abstract translation: 一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。 该方法包括通过使用长度-GGayay互补序列和长度-MGolay互补序列来生成2xMxN小于A的长度为2xMxN的前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A×A×N×N个子载波中的2×M×N个子载波，从空载子载波分配空余数据到除了2×M×N个子载波以外的剩余子载波，然后将分配结果IFFT变换为时间 域数据。