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：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：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：US20110310752A1

公开(公告)日：2011-12-22

申请号：US13092806

申请日：2011-04-22

申请人： Sung-Jin Kim ,  Chang-Soon Park ,  Hong-Shuan Yang

发明人： Sung-Jin Kim ,  Chang-Soon Park ,  Hong-Shuan Yang

IPC分类号： H04L12/26 ,  H04W4/00

CPC分类号： H04B7/0452 ,  H04B7/0645

摘要： The effective performance metric and achieving method of a multi-user multiple-input multiple-output (MU-MIMO) communication system are provided. A number of feedback bits of channel information may be determined based on an effective spectral efficiency (ESE). The ESE may correspond to a metric of the throughput performance with respect to a total radio resource including an uplink radio resource and a downlink radio resource. User-scheduling may be based on the feedback information that is based on the ESE, and thus, the throughput performance of the communication system may be enhanced.

摘要翻译： 提供了多用户多输入多输出（MU-MIMO）通信系统的有效性能指标和实现方法。 可以基于有效频谱效率（ESE）来确定信道信息的多个反馈比特。 ESE可以对应于包括上行链路无线电资源和下行链路无线电资源的总无线电资源的吞吐量性能的度量。 用户调度可以基于基于ESE的反馈信息，因此，可以提高通信系统的吞吐量性能。

公开(公告)号：US07764931B2

公开(公告)日：2010-07-27

申请号：US11840918

申请日：2007-08-17

申请人： Sung-Jin Kim ,  Ho-Jin Kim ,  Jianjun Li ,  Jung-Hoon Suh ,  Chang-Soon Park

发明人： Sung-Jin Kim ,  Ho-Jin Kim ,  Jianjun Li ,  Jung-Hoon Suh ,  Chang-Soon Park

IPC分类号： H04B1/00 ,  H04B7/00

CPC分类号： H04L1/0026 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/066 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0023 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W28/06

摘要： A method of transmitting/receiving feedback information representing channel quality in a MIMO-OFDM system, in which a receiver measures channel qualities of signals transmitted on a plurality of subbands through a plurality of transmitting antennas by a transmitter, selects a predetermined number of subbands having a highest transmission performance based on the measured channel qualities and preceding information, determines at least one subband group with a maximum rate from among the selected subbands and the preceding information associated with the at least one subband group, and transmits feedback information to the transmitter, the feedback information including channel quality information about the at least one subband group and the associated preceding information.

摘要翻译： 一种在MIMO-OFDM系统中发送/接收表示信道质量的反馈信息的方法，其中接收机通过发射机测量通过多个发射天线在多个子带上发送的信号的信道质量，选择预定数量的子带，其具有 基于所测量的信道质量和先前信息的最高传输性能，从所选择的子带中的最大速率和与所述至少一个子带组相关联的先前信息确定至少一个子带组，并将反馈信息发送到发射机， 所述反馈信息包括关于所述至少一个子带组的信道质量信息和所述相关联的先前信息。