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1.发明授权公开(公告)号：US07319685B2
公开(公告)日：2008-01-15
申请号：US10988876
申请日：2004-11-15
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
IPC分类号： H03J3/00
CPC分类号： H04L1/06 , H04L5/023 , H04L27/2601
摘要： A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.
摘要翻译： 一种利用具有多个发射/接收天线的SDM（空分多路复用）的OFDM（正交频分复用）系统中的多个MS（移动站）分配单个频率子信道的方法。 在该方法中，BS（基站）可以有效地分配导频信道来估计下行链路信道。 BS将单频子信道划分为多个空间信道，并且将多个空间信道顺序地分配给具有最大通信容量的MS，从而通过单个频率子信道发送MS的信号。
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2.发明申请Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas 有权在包括多个发送/接收天线的移动通信系统中对发送天线进行分组的方法公开(公告)号：US20050128983A1
公开(公告)日：2005-06-16
申请号：US10988947
申请日：2004-11-15
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
CPC分类号： H04B7/0874 , H04B7/0691
摘要： Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.
摘要翻译： 公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。 该方法包括以下步骤：接收一个大小为N N T N T N T N T N T N T N T N T N T N T N T N 发送天线，从移动终端反馈，生成与第N个接收天线数相对应的第一矩阵的子矩阵的组合，以及计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和成为发送天线的N T个数量的发送天线组; 并通过发射天线组彼此发送不同的相关符号。
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公开(公告)号：US10447437B2
公开(公告)日：2019-10-15
申请号：US11945141
申请日：2007-11-26
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
摘要： A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.
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4.发明申请公开(公告)号：US20050130684A1
公开(公告)日：2005-06-16
申请号：US10988876
申请日：2004-11-15
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
CPC分类号： H04L1/06 , H04L5/023 , H04L27/2601
摘要： A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.
摘要翻译： 一种利用具有多个发射/接收天线的SDM（空分多路复用）的OFDM（正交频分复用）系统中的多个MS（移动站）分配单个频率子信道的方法。 在该方法中，BS（基站）可以有效地分配导频信道来估计下行链路信道。 BS将单频子信道划分为多个空间信道，并且将多个空间信道顺序地分配给具有最大通信容量的MS，从而通过单个频率子信道发送MS的信号。
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5.发明授权Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas 有权在包括多个发送/接收天线的移动通信系统中对发送天线进行分组的方法公开(公告)号：US07483719B2
公开(公告)日：2009-01-27
申请号：US10988947
申请日：2004-11-15
申请人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
发明人： Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Ho-Jin Kim , Joo-Hwan Chun , Kyung-Chun Lee , Il-Han Kim
IPC分类号： H04M1/00
CPC分类号： H04B7/0874 , H04B7/0691
摘要： Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.
摘要翻译： 公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。 该方法包括以下步骤：从移动终端接收具有大小为NtxNt的第一矩阵，其对应于Nt个发送天线，产生与Nr个接收数相对应的第一矩阵的子矩阵的组合 天线，并计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和作为N t个发射天线的发射天线组; 并通过发射天线组彼此发送不同的相关符号。
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6.发明授权Apparatus and method for transmitting an uplink signal in a mobile communication system using an OFDMA scheme 有权使用OFDMA方案在移动通信系统中发送上行链路信号的装置和方法公开(公告)号：US07706351B2
公开(公告)日：2010-04-27
申请号：US11703266
申请日：2007-02-07
申请人： Cheol-Woo You , Eung-Sun Kim , Jong-Hyeuk Lee , Joo-Hwan Chun , Kyung-Chun Lee , Yung-Soo Kim
发明人： Cheol-Woo You , Eung-Sun Kim , Jong-Hyeuk Lee , Joo-Hwan Chun , Kyung-Chun Lee , Yung-Soo Kim
IPC分类号： H04B7/208
CPC分类号： H04L25/03343 , H04L5/023 , H04L25/0226 , H04L2025/03802
摘要： Disclosed is a method for transmitting an uplink signal by a mobile station in a mobile communication system using an OFDMA scheme. The method includes estimating a downlink channel status by using a signal received from a base station; determining a precoding matrix by using the estimated downlink channel status; and transmitting a signal obtained by multiplying an uplink signal to be transmitted by the precoding matrix to the base station.
摘要翻译： 公开了一种移动台在使用OFDMA方案的移动通信系统中发送上行链路信号的方法。 该方法包括：使用从基站接收的信号来估计下行链路信道状态; 通过使用所估计的下行链路信道状态来确定预编码矩阵; 并且将通过预编码矩阵发送的上行链路信号乘以基站而获得的信号。
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7.发明申请Apparatus and method for transmitting an uplink signal in a mobile communication system using an OFDMA scheme 有权使用OFDMA方案在移动通信系统中发送上行链路信号的装置和方法公开(公告)号：US20070206691A1
公开(公告)日：2007-09-06
申请号：US11703266
申请日：2007-02-07
申请人： Cheol-Woo You , Eung-Sun Kim , Jong-Hyeuk Lee , Joo-Hwan Chun , Kyung-Chun Lee , Yung-Soo Kim
发明人： Cheol-Woo You , Eung-Sun Kim , Jong-Hyeuk Lee , Joo-Hwan Chun , Kyung-Chun Lee , Yung-Soo Kim
IPC分类号： H04K1/10
CPC分类号： H04L25/03343 , H04L5/023 , H04L25/0226 , H04L2025/03802
摘要： Disclosed is a method for transmitting an uplink signal by a mobile station in a mobile communication system using an OFDMA scheme. The method includes estimating a downlink channel status by using a signal received from a base station; determining a precoding matrix by using the estimated downlink channel status; and transmitting a signal obtained by multiplying an uplink signal to be transmitted by the precoding matrix to the base station.
摘要翻译： 公开了一种移动台在使用OFDMA方案的移动通信系统中发送上行链路信号的方法。 该方法包括：使用从基站接收的信号来估计下行链路信道状态; 通过使用所估计的下行链路信道状态来确定预编码矩阵; 并且将通过预编码矩阵发送的上行链路信号乘以基站而获得的信号。
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8.发明申请公开(公告)号：US20050180354A1
公开(公告)日：2005-08-18
申请号：US10996699
申请日：2004-11-24
申请人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chan-Soo Hwang , Seung-Hoon Nam
发明人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chan-Soo Hwang , Seung-Hoon Nam
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0015 , H04L27/2608
摘要： An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.
摘要翻译： 一种与RA问题有关的自适应调制方案，用于在包括一些需要以固定数据速率的业务的用户的OFDMA系统中最大化所有用户的最大传输速率的传输速率。 该方案提出了使用线性规划的自适应调制引入到包括单一用户的系统的现有方案中，从而能够在包括两种用户的系统中为所有用户同时执行自适应调制。 此外，为了降低复杂度，本发明提出了当固定传输速率具有足够小的值时向用户顺序分配子信道的另一方案。
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公开(公告)号：US20050147024A1
公开(公告)日：2005-07-07
申请号：US10972034
申请日：2004-10-22
申请人： Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chan-Soo Hwang , Seung-Hoon Nam , Yong-Hoon Lee , Young-Doo Kim
发明人： Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chan-Soo Hwang , Seung-Hoon Nam , Yong-Hoon Lee , Young-Doo Kim
CPC分类号： H04L5/0007 , H04B1/713 , H04L5/0048 , H04L25/0226 , H04L27/2655
摘要： A communication method in an FH-OFDM communication system having a plurality of BSs is provided. A predetermined number of pilot pattern groups are generated, each pilot pattern group having a predetermined number of different pilot patterns for pilot transmission. The pilot patterns in each of the pilot pattern groups are mapped to different FH sequence sets. The pilot patterns and FH sequence sets are assigned to the BSs so that MSs within the service areas of the BSs can identify the BSs.
摘要翻译： 提供了具有多个BS的FH-OFDM通信系统中的通信方法。 产生预定数量的导频模式组，每个导频模式组具有用于导频传输的预定数量的不同导频模式。 每个导频模式组中的导频模式映射到不同的FH序列集。 导频模式和FH序列集被分配给BS，使得BS的服务区域内的MS可以识别BS。
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10.发明授权公开(公告)号：US07411924B2
公开(公告)日：2008-08-12
申请号：US10996699
申请日：2004-11-24
申请人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
发明人： Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
IPC分类号： H04Q7/24
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0015 , H04L27/2608
摘要： An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.
摘要翻译： 一种与RA问题有关的自适应调制方案，用于在包括一些需要以固定数据速率的业务的用户的OFDMA系统中最大化所有用户的最大传输速率的传输速率。 该方案提出了使用线性规划的自适应调制引入到包括单一用户的系统的现有方案中，从而能够在包括两种用户的系统中为所有用户同时执行自适应调制。 此外，为了降低复杂度，本发明提出了当固定传输速率具有足够小的值时向用户顺序分配子信道的另一方案。
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