公开(公告)号：US07535970B2

公开(公告)日：2009-05-19

申请号：US10924463

申请日：2004-08-23

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

IPC分类号： H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.

摘要翻译： 公开了一种使用多个码的多发射和接收天线系统的无线通信装置和方法。 在建议的检测算法中，通过连续取消多码干扰（MCI），在天线域和码域中采用连续干扰消除（SIC）方案。 建议适用于检测算法的有效发射功率分配方法。 计算分配给每个代码的发射功率。 发送功率被确定为特定信号的功率与下一个码信号的功率的简单比率。 基于计算出的码发射功率，分配每个发射天线的发射功率。 因此，在接收端计算的关于发射功率的信息通过反馈信道反馈到发射端。

公开(公告)号：US20050111566A1

公开(公告)日：2005-05-26

申请号：US10924463

申请日：2004-08-23

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

IPC分类号： H04B7/005 ,  H04B7/06 ,  H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.

摘要翻译： 公开了一种使用多个码的多发射和接收天线系统的无线通信装置和方法。 在建议的检测算法中，通过连续取消多码干扰（MCI），在天线域和码域中采用连续干扰消除（SIC）方案。 建议适用于检测算法的有效发射功率分配方法。 计算分配给每个代码的发射功率。 发送功率被确定为特定信号的功率与下一个码信号的功率的简单比率。 基于计算出的码发射功率，分配每个发射天线的发射功率。 因此，在接收端计算的关于发射功率的信息通过反馈信道反馈到发射端。

公开(公告)号：US07324480B2

公开(公告)日：2008-01-29

申请号：US10520694

申请日：2003-07-10

申请人： Sung-Jin Kim ,  Ki-Ho Kim ,  Chang-Soon Park ,  Kwang-Bok Lee

发明人： Sung-Jin Kim ,  Ki-Ho Kim ,  Chang-Soon Park ,  Kwang-Bok Lee

IPC分类号： H04M1/00

CPC分类号： H04L1/0006 ,  H04B7/0634 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0656 ,  H04L1/1812

摘要： A mobile communication apparatus including a base station and at least two mobile stations, having multiple antennas, respectively is provided. In the mobile communication apparatus, the base station restores from feedback signals transmitted from the mobile stations weight information determined in the mobile stations, generates from the restored weight information downlink control information ensuring maximum throughput to each of the mobile stations, and selects from among data of all of the mobile stations data of a desired mobile station(s) to be transmitted, based on the downlink control information. Each of each of the mobile stations has at least one mobile station antenna, the base station has at least two base station antennas, and the downlink control information includes mobile station selection information, an optimal basis matrix index, and optimal gain indices. As a result, nominal peak throughput in multi-antenna mobile communications can be efficiently achieved at low costs.

摘要翻译： 提供了分别具有多个天线的基站和至少两个移动台的移动通信装置。 在移动通信装置中，基站从移动台发送的反馈信号中恢复加权信息，从恢复的加权信息生成确保每个移动台的最大吞吐量的下行链路控制信息，并从数据中进行选择 基于下行链路控制信息，要发送的所需移动台的所有移动站数据的数据。 每个移动台具有至少一个移动台天线，基站具有至少两个基站天线，并且下行链路控制信息包括移动台选择信息，最优基矩阵索引和最优增益索引。 因此，可以以低成本有效地实现多天线移动通信中的标称峰值吞吐量。

公开(公告)号：US20060019709A1

公开(公告)日：2006-01-26

申请号：US10520694

申请日：2003-07-10

申请人： Sung-Jin Kim ,  Ki- Ho Kim ,  Chang-Soon Park ,  Kwang-Bok Lee

发明人： Sung-Jin Kim ,  Ki- Ho Kim ,  Chang-Soon Park ,  Kwang-Bok Lee

IPC分类号： H04M1/00

CPC分类号： H04L1/0006 ,  H04B7/0634 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0656 ,  H04L1/1812

摘要： A mobile communication apparatus including a base station and at least two mobile stations, having multiple antennas, respectively is provided. In the mobile communication apparatus, the base station restores from feedback signals transmitted from the mobile stations weight information determined in the mobile stations, generates from the restored weight information downlink control information ensuring maximum throughput to each of the mobile stations, and selects from among data of all of the mobile stations data of a desired mobile station(s) to be transmitted, based on the downlink control information. Each of each of the mobile stations has at least one mobile station antenna, the base station has at least two base station antennas, and the downlink control information includes mobile station selection information, an optimal basis matrix index, and optimal gain indices. As a result, nominal peak throughput in multi-antenna mobile communications can be efficiently achieved at low costs.

摘要翻译： 提供了分别具有多个天线的基站和至少两个移动台的移动通信装置。 在移动通信装置中，基站从移动台发送的反馈信号中恢复加权信息，从恢复的加权信息生成确保每个移动台的最大吞吐量的下行链路控制信息，并从数据中进行选择 基于下行链路控制信息，要发送的所需移动台的所有移动站数据的数据。 每个移动台具有至少一个移动台天线，基站具有至少两个基站天线，并且下行链路控制信息包括移动台选择信息，最优基矩阵索引和最优增益索引。 因此，可以以低成本有效地实现多天线移动通信中的标称峰值吞吐量。

公开(公告)号：US08208566B2

公开(公告)日：2012-06-26

申请号：US11826473

申请日：2007-07-16

申请人： Byong-Ok Lee ,  Kwang-Bok Lee ,  Chang-Soon Park

发明人： Byong-Ok Lee ,  Kwang-Bok Lee ,  Chang-Soon Park

IPC分类号： H04K1/10

CPC分类号： H04B7/0658 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0697

摘要： A transmission/reception apparatus and method for reducing the amount of feedback information transmitted from a receiver in a multi-user MIMO system are provided. A transmitter determines a reference Channel Quality Information (CQI) and transmits the reference CQI to the receiver. Upon receipt of the reference CQI, the receiver compares the received reference CQI with a CQI of a stream received from the transmitter, sets a channel, over which the stream is received, to at least one of Activation and Inactivation, according to the comparison result, and transmits the set channel information to the transmitter. As a result, the receiver, even though it receives multiple streams from the transmitter, transmits to the transmitter the at least one of Activation and Inactivation information of the channel separately for each individual stream, thereby contributing to a reduction in the total amount of feedback information.

摘要翻译： 提供了一种用于减少在多用户MIMO系统中从接收机发送的反馈信息量的发送/接收装置和方法。 发射机确定参考信道质量信息（CQI）并将参考CQI发射到接收机。 在接收到参考CQI时，接收机将接收到的参考CQI与从发射机接收的流的CQI进行比较，根据比较结果将流接收的信道设置为激活和失活中的至少一个 并将设定的频道信息发送到发射机。 因此，接收机即使从发射机接收多个流，也可以向发射机发送信道的激活和失活信息中的至少一个信息，从而有助于减少总反馈量 信息。

公开(公告)号：US07623588B2

公开(公告)日：2009-11-24

申请号：US11235395

申请日：2005-09-26

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0626 ,  H04B7/066 ,  H04B7/0669 ,  H04L1/0003 ,  H04L1/0618 ,  H04L1/0675 ,  H04L25/0204 ,  H04L27/2608 ,  Y02D70/444

摘要： A data transmission method in a MIMO-OFDM communication system including at least one receiver for receiving a signal through a plurality of reception antennas and a transmitter for selecting a transmission channel using channel information being fed back from the receiver and transmitting a signal through a plurality of transmission antennas. The method includes selecting a spatial subchannel in which when bits are added by applying at least two spatial modes having different multiplexing gains for an individual subcarrier in a frequency domain, the minimum power increment is required during application of each spatial mode; allocating a spatial mode that requires the minimum total accumulated power, for each subcarrier; and selecting all subcarriers in the order of a subcarrier that requires the minimum power increment.

摘要翻译： 一种MIMO-OFDM通信系统中的数据传输方法，包括：至少一个接收机，用于通过多个接收天线接收信号;以及发射机，使用从接收机反馈的信道信息，并通过多个接收天线发送信号 的发射天线。 该方法包括选择空间子信道，其中当通过对频域中的各个子载波应用具有不同复用增益的至少两个空间模式来加上比特时，在每个空间模式的应用期间需要最小功率增量; 为每个子载波分配需要最小总累积功率的空间模式; 并按照需要最小功率增量的子载波的顺序选择所有子载波。

公开(公告)号：US20080043874A1

公开(公告)日：2008-02-21

申请号：US11826473

申请日：2007-07-16

申请人： Byong-Ok Lee ,  Kwang-Bok Lee ,  Chang-Soon Park

发明人： Byong-Ok Lee ,  Kwang-Bok Lee ,  Chang-Soon Park

IPC分类号： H04L1/02

CPC分类号： H04B7/0658 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0697

摘要： A transmission/reception apparatus and method for reducing the amount of feedback information transmitted from a receiver in a multi-user MIMO system are provided. A transmitter determines a reference Channel Quality Information (CQI) and transmits the reference CQI to the receiver. Upon receipt of the reference CQI, the receiver compares the received reference CQI with a CQI of a stream received from the transmitter, sets a channel, over which the stream is received, to at least one of Activation and Inactivation, according to the comparison result, and transmits the set channel information to the transmitter. As a result, the receiver, even though it receives multiple streams from the transmitter, transmits to the transmitter the at least one of Activation and Inactivation information of the channel separately for each individual stream, thereby contributing to a reduction in the total amount of feedback information.

摘要翻译： 提供了一种用于减少在多用户MIMO系统中从接收机发送的反馈信息量的发送/接收装置和方法。 发射机确定参考信道质量信息（CQI）并将参考CQI发射到接收机。 在接收到参考CQI时，接收机将接收到的参考CQI与从发射机接收的流的CQI进行比较，根据比较结果将流接收的信道设置为激活和失活中的至少一个 并将设定的频道信息发送到发射机。 因此，接收机即使从发射机接收多个流，也可以向发射机发送信道的激活和失活信息中的至少一个信息，从而有助于减少总反馈量 信息。

公开(公告)号：US20060067417A1

公开(公告)日：2006-03-30

申请号：US11235395

申请日：2005-09-26

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

IPC分类号： H04K1/10

CPC分类号： H04B7/0626 ,  H04B7/066 ,  H04B7/0669 ,  H04L1/0003 ,  H04L1/0618 ,  H04L1/0675 ,  H04L25/0204 ,  H04L27/2608 ,  Y02D70/444

摘要： A data transmission method in a MIMO-OFDM communication system including at least one receiver for receiving a signal through a plurality of reception antennas and a transmitter for selecting a transmission channel using channel information being fed back from the receiver and transmitting a signal through a plurality of transmission antennas. The method includes selecting a spatial subchannel in which when bits are added by applying at least two spatial modes having different multiplexing gains for an individual subcarrier in a frequency domain, the minimum power increment is required during application of each spatial mode; allocating a spatial mode that requires the minimum total accumulated power, for each subcarrier; and selecting all subcarriers in the order of a subcarrier that requires the minimum power increment.

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：US20060098754A1

公开(公告)日：2006-05-11

申请号：US11256251

申请日：2005-10-21

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

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

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0443 ,  H04B7/0626 ,  H04B7/0691 ,  H04W52/42

摘要： A beam and power allocation method for a MIMO system transmitting multiple data streams from a transmitter having a plurality of transmit antennas to a receiver having at least two receive antennas, the transmit antennas being grouped based on feedback information from the receiver, includes obtaining covariance matrices for respective transmit antenna group, and allocating beam and power to the transmit antenna groups according to the covariance matrices of the respective antenna groups. The power allocation method can be adapted to various partial beamforming techniques by generalizing the optimization problem as a function of transmit covariance matrices.

摘要翻译： 一种用于MIMO系统的波束和功率分配方法，所述MIMO系统从具有多个发射天线的发射机向具有至少两个接收天线的接收机发射多个数据流，所述发射天线基于来自所述接收机的反馈信息分组，包括获得协方差矩阵 并且根据各个天线组的协方差矩阵将波束和功率分配给发射天线组。 功率分配方法可以通过将优化问题概括为发射协方差矩阵的函数来适应各种部分波束成形技术。