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41. 发明授权

US07907912B2 Apparatus and method for eliminating multi-user interference 有权
标题翻译：消除多用户干扰的装置和方法
公开(公告)号：US07907912B2
公开(公告)日：2011-03-15
申请号：US11601049
申请日：2006-11-17
申请人： Seung-Hoon Nam , Myeon-Kyun Cho , Yung-Soo Kim , Sei-Joon Shim , Kyeong-Yeon Kim , Chung-Yong Lee
发明人： Seung-Hoon Nam , Myeon-Kyun Cho , Yung-Soo Kim , Sei-Joon Shim , Kyeong-Yeon Kim , Chung-Yong Lee
IPC分类号： H04B17/00
CPC分类号： H04B7/0408 , H04B7/0417 , H04B7/0452 , H04B7/0634 , H04B7/0639
摘要： Provided are an apparatus and method for eliminating multi-user interference in a codebook-based beamforming system. A transmitter for providing a service to multi-users in the codebook-based beamforming system includes a beamformer for generating beamformed user signals by multiplying transmit data of users, to whom the service is to be provided, by corresponding weighting factor vectors using feedback information; a null space generator for generating a null space matrix orthogonal to weighting factor vectors of other users; and a projector for projecting the beamformed user signals on the corresponding null space matrix and transmitting the resulting signals through a plurality of antennas. Because the multi-user signals can maintain orthogonality, the performance degradation caused by the multi-user interference can be prevented.
摘要翻译：提供了一种用于消除基于码本的波束成形系统中的多用户干扰的装置和方法。用于在基于码本的波束成形系统中为多用户提供服务的发射机包括波束形成器，用于通过使用反馈信息将相应的加权因子向量乘以要提供服务的用户的发送数据来生成波束形成的用户信号; 零空间生成器，用于生成与其他用户的加权因子矢量正交的零空间矩阵; 以及用于将波束形成的用户信号投影在相应的零空间矩阵上并通过多个天线发送所得到的信号的投影仪。因为多用户信号可以保持正交性，所以可以防止由多用户干扰引起的性能下降。

42. 发明申请

US20120219043A1 METHOD AND APPARATUS FOR JOINT PROCESSING AND PRECODING MODE SELECTION BASED ON LIMITED FEEDBACK IN MOBILE COMMUNICATION SYSTEM 有权
标题翻译：基于移动通信系统中的有限反馈的联合处理和预测模式选择的方法和装置
公开(公告)号：US20120219043A1
公开(公告)日：2012-08-30
申请号：US13405189
申请日：2012-02-24
申请人： Eun-Seok Ko , Yung-Soo Kim , Sanghoon Lee , Hojae Lee
发明人： Eun-Seok Ko , Yung-Soo Kim , Sanghoon Lee , Hojae Lee
IPC分类号： H04L25/49
CPC分类号： H04B7/0632 , H04B7/024 , H04B7/063 , H04B7/0639 , H04B7/0689
摘要： According to one embodiment, a method of a base station configured to select a precoding mode in a mobile communication system. When channel estimate information is received from at least one terminal, the channel estimate information is collected, so that user grouping is performed according to one precoding scheme from among multiple precoding schemes. Individual user scheduling is performed according to each precoding scheme, so that a service candidate group set is generated. The selected precoding scheme is maximized according to a transmission capacity of a service candidate group set for each precoding scheme. Data is then transmitted to a determined candidate group set using the determined precoding scheme.
摘要翻译：根据一个实施例，一种被配置为在移动通信系统中选择预编码模式的基站的方法。当从至少一个终端接收到信道估计信息时，收集信道估计信息，从而根据多个预编码方案中的一个预编码方案来执行用户分组。根据每个预编码方案执行单个用户调度，从而生成服务候选组集合。所选择的预编码方案根据针对每个预编码方案的服务候选组集合的传输容量来最大化。然后使用所确定的预编码方案将数据发送到确定的候选组集合。

43. 发明授权

US09385799B2 Method and apparatus for joint processing and precoding mode selection based on limited feedback in mobile communication system 有权
标题翻译：基于移动通信系统有限反馈的联合处理和预编码模式选择的方法和装置
公开(公告)号：US09385799B2
公开(公告)日：2016-07-05
申请号：US13405189
申请日：2012-02-24
申请人： Eun-Seok Ko , Yung-Soo Kim , Sanghoon Lee , Hojae Lee
发明人： Eun-Seok Ko , Yung-Soo Kim , Sanghoon Lee , Hojae Lee
IPC分类号： H04B7/02 , H04B7/06
CPC分类号： H04B7/0632 , H04B7/024 , H04B7/063 , H04B7/0639 , H04B7/0689
摘要： According to one embodiment, a method of a base station configured to select a precoding mode in a mobile communication system. When channel estimate information is received from at least one terminal, the channel estimate information is collected, so that user grouping is performed according to one precoding scheme from among multiple precoding schemes. Individual user scheduling is performed according to each precoding scheme, so that a service candidate group set is generated. The selected precoding scheme is maximized according to a transmission capacity of a service candidate group set for each precoding scheme. Data is then transmitted to a determined candidate group set using the determined precoding scheme.
摘要翻译：根据一个实施例，一种被配置为在移动通信系统中选择预编码模式的基站的方法。当从至少一个终端接收到信道估计信息时，收集信道估计信息，从而根据多个预编码方案中的一个预编码方案来执行用户分组。根据每个预编码方案执行单个用户调度，从而生成服务候选组集合。所选择的预编码方案根据针对每个预编码方案的服务候选组集合的传输容量来最大化。然后使用所确定的预编码方案将数据发送到确定的候选组集合。

44. 发明授权

US08472566B2 Apparatus and method for transmitting pilot signal in wireless communication system 有权
标题翻译：在无线通信系统中发送导频信号的装置和方法
公开(公告)号：US08472566B2
公开(公告)日：2013-06-25
申请号：US12424898
申请日：2009-04-16
申请人： Eun-Seok Ko , Eun-Yong Kim , Yung-Soo Kim
发明人： Eun-Seok Ko , Eun-Yong Kim , Yung-Soo Kim
IPC分类号： H04L27/06 , H04L25/02 , H04L5/00 , H04B7/04 , H04B7/02 , H04B7/08
CPC分类号： H04L25/0202 , H04B7/024 , H04B7/0408 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/0851 , H04B7/086 , H04L5/0007 , H04L5/0048
摘要： An apparatus and method for reducing pilot overhead in a multi-antenna system are provided. The method generates postcodes and pre-codes for streams used to transmit signals to at least two receivers. The method allocates a pilot signal to at least one of the streams, and allocates an additional pilot signal shared by at least one of the streams. The method precodes the pilot signal allocated to at least one of the streams, the additional pilot signal, and data to be transmitted to each of the receivers, based on the pre-code for each of the streams, prior to transmission.
摘要翻译：提供了一种用于减少多天线系统中的导频开销的装置和方法。该方法为用于将信号发送到至少两个接收机的流产生后代码和预编码。该方法将导频信号分配给至少一个流，并且分配由至少一个流共享的附加导频信号。在传输之前，该方法基于每个流的预编码来对分配给至少一个流的导频信号，附加导频信号和要发送到每个接收机的数据进行预编码。

45. 发明授权

US09030952B2 Apparatus and method for precoding by limited cooperation in a wireless communication system 有权
标题翻译：一种通过无线通信系统中的有限合作进行预编码的装置和方法
公开(公告)号：US09030952B2
公开(公告)日：2015-05-12
申请号：US13362971
申请日：2012-01-31
申请人： Eun-Seok Ko , Chung-Yong Lee , Myoung-Seok Kim , Mi-Sun Yoon , Yung-Soo Kim , June Moon
发明人： Eun-Seok Ko , Chung-Yong Lee , Myoung-Seok Kim , Mi-Sun Yoon , Yung-Soo Kim , June Moon
IPC分类号： H04L12/26 , H04W72/04 , H04B7/04 , H04W72/08
CPC分类号： H04W72/0433 , H04B7/0413 , H04W72/082
摘要： An apparatus and method are provided for precoding by limited cooperation in a wireless communication system. A method of data precoding by a Base Station (BS) in a wireless communication system includes determining a Channel Quality Indicator (CQI) parameter indicating channel size information between the BS and a User Equipment (UE) served by the BS; transmitting the determined CQI parameter through a backhaul to a central unit; receiving, from the central unit, a weight factor based on a CQI parameter from each cell; and determining a precoding vector based on the weight factor. The weight factor represents a relative ratio of an inter-cell environment that is to be interfered by the BS.
摘要翻译：提供了一种用于通过无线通信系统中的有限协作进行预编码的装置和方法。在无线通信系统中由基站（BS）进行数据预编码的方法包括确定指示BS与由BS服务的用户设备（UE）之间的信道大小信息的信道质量指示符（CQI）参数; 通过回程将确定的CQI参数发送到中央单元; 从所述中央单元接收来自每个小区的基于CQI参数的权重因子; 以及基于所述权重因子确定预编码向量。权重因子表示要被BS干扰的小区间环境的相对比例。

46. 发明申请

US20100048233A1 Apparatus and method for selecting precoding matrix in multiple antenna wireless communication system 有权
标题翻译：在多天线无线通信系统中选择预编码矩阵的装置和方法
公开(公告)号：US20100048233A1
公开(公告)日：2010-02-25
申请号：US12583417
申请日：2009-08-20
申请人： Yu-Seok Kim , Eun-Yong Kim , Yung-Soo Kim , Sang-Min Lee , Eun-Seok Ko
发明人： Yu-Seok Kim , Eun-Yong Kim , Yung-Soo Kim , Sang-Min Lee , Eun-Seok Ko
IPC分类号： H04B15/00
CPC分类号： H04W4/20
摘要： A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.
摘要翻译：移动站（MS）可操作以在多天线无线通信系统中选择预编码矩阵。该方法包括从服务基站（BS）接收关于禁止使用的预编码矩阵的信息和由邻居BS使用的预编码矩阵，估计由邻居使用的预编码矩阵的干扰信号 BS，并且通过考虑来自剩余的预编码矩阵的估计干扰信号，并且由服务BS使用的预编码矩阵，除了由服务BS使用的预编码矩阵之中禁止使用的预编码矩阵之外，选择预编码矩阵。

47. 发明授权

US08862070B2 Apparatus and method for selecting precoding matrix in multiple antenna wireless communication system 有权
标题翻译：在多天线无线通信系统中选择预编码矩阵的装置和方法
公开(公告)号：US08862070B2
公开(公告)日：2014-10-14
申请号：US12583417
申请日：2009-08-20
申请人： Yu-Seok Kim , Eun-Yong Kim , Yung-Soo Kim , Sang-Min Lee , Eun-Seok Ko
发明人： Yu-Seok Kim , Eun-Yong Kim , Yung-Soo Kim , Sang-Min Lee , Eun-Seok Ko
IPC分类号： H04B7/00 , H04W4/20
CPC分类号： H04W4/20
摘要： A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.
摘要翻译：移动站（MS）可操作以在多天线无线通信系统中选择预编码矩阵。该方法包括从服务基站（BS）接收关于禁止使用的预编码矩阵的信息和由邻居BS使用的预编码矩阵，估计由邻居使用的预编码矩阵的干扰信号 BS，并且通过考虑来自剩余的预编码矩阵的估计干扰信号，并且由服务BS使用的预编码矩阵，除了由服务BS使用的预编码矩阵之中禁止使用的预编码矩阵之外，选择预编码矩阵。

48. 发明申请

US20120195219A1 APPARATUS AND METHOD FOR PRECODING BY LIMITED COOPERATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：通过无线通信系统中的有限合作预测的装置和方法
公开(公告)号：US20120195219A1
公开(公告)日：2012-08-02
申请号：US13362971
申请日：2012-01-31
申请人： Eun-Seok Ko , Chung-Yong Lee , Myoung-Seok Kim , Mi-Sun Yoon , Yung-Soo Kim , June Moon
发明人： Eun-Seok Ko , Chung-Yong Lee , Myoung-Seok Kim , Mi-Sun Yoon , Yung-Soo Kim , June Moon
IPC分类号： H04W72/04 , H04W4/00 , H04W24/00
CPC分类号： H04W72/0433 , H04B7/0413 , H04W72/082
摘要： An apparatus and method are provided for precoding by limited cooperation in a wireless communication system. A method of data precoding by a Base Station (BS) in a wireless communication system includes determining a Channel Quality Indicator (CQI) parameter indicating channel size information between the BS and a User Equipment (UE) served by the BS; transmitting the determined CQI parameter through a backhaul to a central unit; receiving, from the central unit, a weight factor based on a CQI parameter from each cell; and determining a precoding vector based on the weight factor. The weight factor represents a relative ratio of an inter-cell environment that is to be interfered by the BS.
摘要翻译：提供了一种用于通过无线通信系统中的有限协作进行预编码的装置和方法。在无线通信系统中由基站（BS）进行数据预编码的方法包括确定指示BS与由BS服务的用户设备（UE）之间的信道大小信息的信道质量指示符（CQI）参数; 通过回程将确定的CQI参数发送到中央单元; 从所述中央单元接收来自每个小区的基于CQI参数的权重因子; 以及基于所述权重因子确定预编码向量。权重因子表示要被BS干扰的小区间环境的相对比例。

49. 发明授权

US08117516B2 Apparatus and method for signal transmission/reception in a communication system 有权
标题翻译：通信系统中信号发送/接收的装置和方法
公开(公告)号：US08117516B2
公开(公告)日：2012-02-14
申请号：US11935259
申请日：2007-11-05
申请人： Dong-Ho Kim , Yung-Soo Kim , Tak-Ki Yu , Keum-Chan Whang , Kwang-Soon Kim , Hyo-Yol Park
发明人： Dong-Ho Kim , Yung-Soo Kim , Tak-Ki Yu , Keum-Chan Whang , Kwang-Soon Kim , Hyo-Yol Park
IPC分类号： H03M13/00
CPC分类号： H03M13/1102 , H03M13/033 , H03M13/6393
摘要： A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.
摘要翻译：提供了一种用于在通信系统中发送信号的方法和装置。根据低密度奇偶校验（LDPC）编码方案对信息向量进行编码，从而生成LDPC码字。保留最小存活检查节点用于恢复LDPC码字中的穿孔节点。从未预留的校验节点中选择具有最小成本函数的校验节点。从连接到所选择的校验节点的变量节点中选择变量节点是未穿刺的并且具有最小的成本函数。当所选择的变量节点未连接到保留的校验节点时，所选择的变量节点被打孔。当所选变量节点连接到保留校验节点时，执行停止集检查。当成功执行停止设置检查时，变量节点被打孔。选中校验节点，直到不存在要删除的变量节点并对该变量节点进行删截。

50. 发明授权

US08199721B2 Method and system for selecting relay station in a communication system 有权
标题翻译：在通信系统中选择中继站的方法和系统
公开(公告)号：US08199721B2
公开(公告)日：2012-06-12
申请号：US11848600
申请日：2007-08-31
申请人： Young-Ho Jung , Yung-Soo Kim , Cheol-Woo You , Tak-Ki Yu , Sang-Min Lee
发明人： Young-Ho Jung , Yung-Soo Kim , Cheol-Woo You , Tak-Ki Yu , Sang-Min Lee
IPC分类号： H04W4/00
CPC分类号： H04B7/15542
摘要： A method and system for selecting an RS in an MS in a communication system are provided, in which the MS measures channel qualities between the MS and at least two RSs, and selects an RS for relaying signals between the MS and a BS from among the at least two RSs according to the channel quality measurements.
摘要翻译：提供了一种用于在通信系统中选择MS中的RS的方法和系统，其中MS测量MS与至少两个RS之间的信道质量，并且从MS和BS之间选择用于在MS和BS之间中继信号的RS 至少两个RS根据信道质量测量。

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