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1. 发明申请

US20100265901A1 METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中发送信道状态信息的方法
公开(公告)号：US20100265901A1
公开(公告)日：2010-10-21
申请号：US12757586
申请日：2010-04-09
申请人： Ja Ho Koo , Wook Bong Lee , Jian Xu , Bin Chul Ihm , Hyun Soo Ko
发明人： Ja Ho Koo , Wook Bong Lee , Jian Xu , Bin Chul Ihm , Hyun Soo Ko
IPC分类号： H04W72/04
CPC分类号： H04L25/0242 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04W28/06 , H04W72/042 , H04W72/0453
摘要： A method for transmitting channel state information from an user equipment in a wireless communication system is disclosed. The user equipment transmits a spatial channel matrix or a spatial channel covariance matrix irrespective of a feedback type. The user equipment is able to additionally transmit noise plus interference variance information of a whole bandwidth used for the channel state information. In this case, the user equipment is able to transmit normalized spatial channel matrix or spatial channel covariance matrix and normalized noise plus interference variance information for accurate and efficient transmission of the channel state information. The user equipment receives an allocation of an uplink resource from a base station and is then able to map the spatial channel matrix or the spatial channel covariance matrix to the allocated resource according to a specific pattern.
摘要翻译：公开了一种用于在无线通信系统中从用户设备发送信道状态信息的方法。无论反馈类型如何，用户设备发送空间信道矩阵或空间信道协方差矩阵。用户设备能够附加地传输用于信道状态信息的整个带宽的噪声加干扰方差信息。在这种情况下，用户设备能够发送归一化空间信道矩阵或空间信道协方差矩阵和归一化噪声加干扰方差信息，以准确和有效地传输信道状态信息。用户设备从基站接收上行链路资源的分配，然后能够根据特定模式将空间信道矩阵或空间信道协方差矩阵映射到所分配的资源。

2. 发明授权

US08699610B2 Feedback scheme for multi-cell interference mitigation consideration legacy mobile users 失效
标题翻译：用于多小区干扰减轻考虑的传统移动用户的反馈方案
公开(公告)号：US08699610B2
公开(公告)日：2014-04-15
申请号：US13388019
申请日：2010-02-17
申请人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
发明人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
IPC分类号： H04B7/02
CPC分类号： H04B7/0617 , H04B7/063
摘要： The present invention relates to a Multi-Input Multi-Output (MIMO) communication system and more particularly, to a method for precoding matrix index (PMI) restriction/recommendation in a multi-cell wireless communication system. A method of codebook based precoding matrix index (PMI) feedback considering legacy mobile stations in a multi-cell wireless communication system comprises measuring a channel from at least one neighboring base station generating interference with a signal received from a serving base station; determining a first PMI in which the interference is maximized from PMIs included in a first codebook, wherein the first PMI is determined based on the measured channel; determining a first PMI group including PMIs having high correlation to the first PMI from the PMIs included in the first codebook; determining a second PMI in which the interference is maximized from PMIs included in a second codebook, where in the second codebook is for the legacy mobile stations; determining a second PMI group including PMIs having high correlation to the second PMI from the PMIs included in the second codebook; and transmitting feedback information including the first PMI, a first subset bit indicating the first PMI group, the second PMI and a second subset bit indicating the second PMI group to the serving base station.
摘要翻译：多输入多输出（MIMO）通信系统技术领域本发明涉及多输入多输出（MIMO）通信系统，更具体地说，涉及在多小区无线通信系统中对矩阵索引（PMI）限制/推荐进行预编码的方法。一种考虑多小区无线通信系统中的传统移动台的基于码本的预编码矩阵索引（PMI）反馈的方法包括测量来自至少一个相邻基站的信道，产生对从服务基站接收的信号的干扰; 从包括在第一码本中的PMI确定其中所述干扰最大化的第一PMI，其中，基于所测量的信道确定所述第一PMI; 从包括在第一码本中的PMI确定包括与第一PMI具有高相关性的PMI的第一PMI组; 从包括在第二码本中的PMI确定其中所述干扰最大化的第二PMI，其中在所述第二码本中用于所述传统移动站; 从包括在第二码本中的PMI确定包括与第二PMI相关性高的PMI的第二PMI组; 以及向所述服务基站发送包括所述第一PMI，指示所述第一PMI组的第一子集比特，所述第二PMI和指示所述第二PMI组的第二子比特的反馈信息。

3. 发明授权

US08693564B2 Low overhead feedback scheme for codebook based closed-loop MIMO 失效
标题翻译：低开销反馈方案，用于基于码本的闭环MIMO
公开(公告)号：US08693564B2
公开(公告)日：2014-04-08
申请号：US13141207
申请日：2010-02-09
申请人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
发明人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
IPC分类号： H04B7/02
CPC分类号： H04B7/0621 , H04B7/0663
摘要： The present invention relates to a Multi-Input Multi-Output (MIMO) communication system and more particularly, to a method for Correlation matrix feedback in a multi-cell wireless communication system. A method for transmitting correlation matrix feedback information of a mobile station considering adaptive feedback mode in a multi-cell wireless communication system according to one embodiment of the present invention comprises measuring a channel between the mobile station and a serving base station using a signal received from the serving base station; determining a first matrix indicating channel state information and a first precoder using the measured channel; generating a second matrix using a Fourier matrix and the first matrix; and transmitting feedback information including at least one of information of the first precoder and diagonal values of the second matrix.
摘要翻译：多输入多输出（MIMO）通信系统技术领域本发明涉及多输入多输出（MIMO）通信系统，更具体地说，涉及一种用于多小区无线通信系统中的相关矩阵反馈的方法。在根据本发明的一个实施例的在多小区无线通信系统中考虑自适应反馈模式的移动站的相关矩阵反馈信息的传输方法包括：使用接收到的信号来测量移动站与服务基站之间的信道，服务基站; 使用所测量的信道确定指示信道状态信息的第一矩阵和第一预编码器; 使用傅立叶矩阵和所述第一矩阵生成第二矩阵; 以及发送包括第一预编码器的信息和第二矩阵的对角线值中的至少一个的反馈信息。

4. 发明授权

US08279825B2 Method for transmitting channel state information in a wireless communication system 有权
标题翻译：用于在无线通信系统中发送信道状态信息的方法
公开(公告)号：US08279825B2
公开(公告)日：2012-10-02
申请号：US12757586
申请日：2010-04-09
申请人： Ja Ho Koo , Wook Bong Lee , Jian Xu , Bin Chul Ihm , Hyun Soo Ko
发明人： Ja Ho Koo , Wook Bong Lee , Jian Xu , Bin Chul Ihm , Hyun Soo Ko
IPC分类号： H04W72/04
CPC分类号： H04L25/0242 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04W28/06 , H04W72/042 , H04W72/0453
摘要： A method for transmitting channel state information from an user equipment in a wireless communication system is disclosed. The user equipment transmits a spatial channel matrix or a spatial channel covariance matrix irrespective of a feedback type. The user equipment is able to additionally transmit noise plus interference variance information of a whole bandwidth used for the channel state information. In this case, the user equipment is able to transmit normalized spatial channel matrix or spatial channel covariance matrix and normalized noise plus interference variance information for accurate and efficient transmission of the channel state information. The user equipment receives an allocation of an uplink resource from a base station and is then able to map the spatial channel matrix or the spatial channel covariance matrix to the allocated resource according to a specific pattern.
摘要翻译：公开了一种用于在无线通信系统中从用户设备发送信道状态信息的方法。无论反馈类型如何，用户设备发送空间信道矩阵或空间信道协方差矩阵。用户设备能够附加地传输用于信道状态信息的整个带宽的噪声加干扰方差信息。在这种情况下，用户设备能够发送归一化空间信道矩阵或空间信道协方差矩阵和归一化噪声加干扰方差信息，以准确和有效地传输信道状态信息。用户设备从基站接收上行链路资源的分配，然后能够根据特定模式将空间信道矩阵或空间信道协方差矩阵映射到所分配的资源。

5. 发明申请

US20120128050A1 FEEDBACK SCHEME FOR MULTI-CELL INTERFERENCE MITIGATION CONSIDERATION LEGACY MOBILE USERS 失效
标题翻译：用于多细胞干扰减轻的反馈方案LEGACY MOBILE USERS
公开(公告)号：US20120128050A1
公开(公告)日：2012-05-24
申请号：US13388019
申请日：2010-02-17
申请人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
发明人： Jian Xu , Ja Ho Koo , Bin Chul Ihm , Wook Bong Lee
IPC分类号： H04L25/49 , H04B7/02
CPC分类号： H04B7/0617 , H04B7/063
摘要： The present invention relates to a Multi-Input Multi-Output (MIMO) communication system and more particularly, to a method for precoding matrix index (PMI) restriction/recommendation in a multi-cell wireless communication system. A method of codebook based precoding matrix index (PMI) feedback considering legacy mobile stations in a multi-cell wireless communication system comprises measuring a channel from at least one neighboring base station generating interference with a signal received from a serving base station; determining a first PMI in which the interference is maximized from PMIs included in a first codebook, wherein the first PMI is determined based on the measured channel; determining a first PMI group including PMIs having high correlation to the first PMI from the PMIs included in the first codebook; determining a second PMI in which the interference is maximized from PMIs included in a second codebook, where in the second codebook is for the legacy mobile stations; determining a second PMI group including PMIs having high correlation to the second PMI from the PMIs included in the second codebook; and transmitting feedback information including the first PMI, a first subset bit indicating the first PMI group, the second PMI and a second subset bit indicating the second PMI group to the serving base station.
摘要翻译：多输入多输出（MIMO）通信系统技术领域本发明涉及多输入多输出（MIMO）通信系统，更具体地说，涉及在多小区无线通信系统中对矩阵索引（PMI）限制/推荐进行预编码的方法。一种考虑多小区无线通信系统中的传统移动台的基于码本的预编码矩阵索引（PMI）反馈的方法包括测量来自至少一个相邻基站的信道，产生对从服务基站接收的信号的干扰; 从包括在第一码本中的PMI确定其中所述干扰最大化的第一PMI，其中，基于所测量的信道确定所述第一PMI; 从包括在第一码本中的PMI确定包括与第一PMI具有高相关性的PMI的第一PMI组; 从包括在第二码本中的PMI确定其中所述干扰最大化的第二PMI，其中在所述第二码本中用于所述传统移动站; 从包括在第二码本中的PMI确定包括与第二PMI相关性高的PMI的第二PMI组; 以及向所述服务基站发送包括所述第一PMI，指示所述第一PMI组的第一子集比特，所述第二PMI和指示所述第二PMI组的第二子比特的反馈信息。

6. 发明授权

US08964623B2 Transmission method of downlink reference signal and apparatus thereof 有权
标题翻译：下行链路参考信号的传输方法及其装置
公开(公告)号：US08964623B2
公开(公告)日：2015-02-24
申请号：US13263334
申请日：2010-04-12
申请人： Hyun Soo Ko , Bin Chul Ihm , Sung Ho Park , Young Seob Lee , Seung Hyun Kang , Ja Ho Koo , Su Nam Kim , Wook Bong Lee , Jin Young Chun
发明人： Hyun Soo Ko , Bin Chul Ihm , Sung Ho Park , Young Seob Lee , Seung Hyun Kang , Ja Ho Koo , Su Nam Kim , Wook Bong Lee , Jin Young Chun
IPC分类号： H04W4/00 , H04L5/00
CPC分类号： H04L5/0053
摘要： The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.
摘要翻译：无线通信系统技术领域本发明涉及一种无线通信系统，提供了一种用于在无线通信系统中发送下行链路参考信号的方法和装置。根据本发明的一个实施例，使基站能够使用8以下的层将参考信号发送到终端的方法包括以下步骤：通过数据域的数据域传送8或更小层的数据下行子帧; 并且在下行链路子帧的固定OFDM符号上发射8或更小层的参考信号，其中参考信号是对8或更小层的数据进行解调的DRS（专用参考信号），参考信号 8或更小层的信号分为第1组和第2组，第一组和第二组的参考信号可以分别以一个资源元素的CDM（码分多路复用）方式复用。

7. 发明授权

US08774850B2 Channel quality information transmission method in wireless communication system adopting coordinated multi-point scheme and an apparatus therefor 失效
标题翻译：采用协调多点方案的无线通信系统中的信道质量信息传输方法及其设备
公开(公告)号：US08774850B2
公开(公告)日：2014-07-08
申请号：US13203819
申请日：2010-03-05
申请人： Ja Ho Koo , Wook Bong Lee , Su Nam Kim , Bin Chul Ihm , Jae Hoon Chung
发明人： Ja Ho Koo , Wook Bong Lee , Su Nam Kim , Bin Chul Ihm , Jae Hoon Chung
IPC分类号： H04B7/00 , H04W4/00
CPC分类号： H04L1/0028 , H04L1/0026 , H04L1/0031
摘要： The present invention relates to a channel quality information transmission method in a communication system adopting a coordinated multi-point scheme. A terminal receives signals, through the same band, from a serving base station and at least one neighbor base station, respectively, which are included in a CoMP set operating in a joint processing mode. Next, the terminal generates combined channel quality information on a single signal obtained by combining the signals received through the same band, and then transmits the information to the serving base station. The combined channel quality information is generated using information on a combined channel obtained by combining channels between the terminal and the serving base station and between the terminal and each one of the at least one neighbor base station, which are included in the CoMP set.
摘要翻译：本发明涉及采用协调多点方案的通信系统中的信道质量信息传输方法。终端通过相同的频带分别从服务基站和至少一个相邻基站接收包括在以联合处理模式操作的CoMP集合中的信号。接下来，终端通过组合通过相同频带接收的信号而获得的单个信号产生组合信道质量信息，然后将该信息发送到服务基站。使用通过组合终端和服务基站之间以及终端与至少一个相邻基站中包含在CoMP集合中的每个之间的信道而获得的组合信道上的信息来生成组合信道质量信息。

8. 发明授权

US08705612B2 Method for generating downlink signal in downlink MIMO system 有权
标题翻译：在下行链路MIMO系统中生成下行链路信号的方法
公开(公告)号：US08705612B2
公开(公告)日：2014-04-22
申请号：US13202563
申请日：2010-02-22
申请人： Moon Il Lee , Wook Bong Lee , Ja Ho Koo , Hyun Soo Ko , Jae Hoon Chung , Bin Chul Ihm
发明人： Moon Il Lee , Wook Bong Lee , Ja Ho Koo , Hyun Soo Ko , Jae Hoon Chung , Bin Chul Ihm
IPC分类号： H04B1/66
CPC分类号： H04L1/0061 , H04L1/06
摘要： A method for generating a downlink signal in a downlink MIMO (Multiple Input Multiple Output) comprises the steps of: mapping at least one transport block to at least one codeword; mapping at least one layer to each codeword; classifying at least one layer mapped to each codeword into a certain number of layer groups and performing layer permutation by the layer groups; and generating an OFDM (Orthogonal Frequency-Division Multiplexing) symbol using a signal which is permutated by the layer groups. A CRC (Cyclic Redundancy Check) is attached by the layer groups.
摘要翻译：一种用于在下行链路MIMO（多输入多输出）中产生下行链路信号的方法包括以下步骤：将至少一个传输块映射到至少一个码字; 将至少一个层映射到每个码字; 将映射到每个码字的至少一个层分成一定数量的层组并且由层组执行层排列; 以及使用由层组排列的信号来生成OFDM（正交频分复用）符号。层组附加CRC（循环冗余校验）。

9. 发明授权

US08681678B2 Method of transmitting multicast and broadcast service data 有权
标题翻译：发送组播和广播业务数据的方法
公开(公告)号：US08681678B2
公开(公告)日：2014-03-25
申请号：US12920171
申请日：2009-03-02
申请人： Ja Ho Koo , Wook Bong Lee , Dong Cheol Kim , Bin Chul Ihm , Hyun Soo Ko
发明人： Ja Ho Koo , Wook Bong Lee , Dong Cheol Kim , Bin Chul Ihm , Hyun Soo Ko
IPC分类号： H04H1/00 , G08C17/00
CPC分类号： H04L5/0037 , H04W72/005
摘要： A resource allocation method for a Multicast and Broadcast Service (MBS) and a method for transmitting MBS data in a wireless access system are disclosed. The MBS transmission method for a multicast broadcast single frequency network (MBSFN) zone includes, constructing a resource zone by sequentially allocating predetermined symbol areas preferentially on a frequency axis, mapping predetermined MBSs provided from the MBSFN zone to the predetermined symbol areas, and transmitting a first MBS among the predetermined MBSs to mobile stations located at an edge of the MBSFN zone. The first MBS is equal to a second MBS among MBSs provided from a neighbor MBSFN zone. The first MBS and the second MBS are transmitted to the same time zone according to a time division multiplexing (TDM) method.
摘要翻译：公开了一种用于组播和广播服务（MBS）的资源分配方法和用于在无线接入系统中发送MBS数据的方法。用于组播广播单频网（MBSFN）区域的MBS传输方法包括：通过在频率轴上优先依次分配预定符号区域来构建资源区域，将从MBSFN区域提供的预定MBS映射到预定符号区域，并发送将预定的MBS中的第一MBS发送到位于MBSFN区域边缘的移动站。第一MBS等于从相邻MBSFN区域提供的MBS中的第二MBS。根据时分复用（TDM）方法将第一MBS和第二MBS发送到相同的时区。

10. 发明授权

US08498232B2 Method of transmitting data in wireless communication system 有权
标题翻译：在无线通信系统中传输数据的方法
公开(公告)号：US08498232B2
公开(公告)日：2013-07-30
申请号：US12810622
申请日：2008-12-24
申请人： Wook Bong Lee , Ja Ho Koo , Sung Ho Moon , Jin Sam Kwak , Bin Chul Ihm , Dong Cheol Kim
发明人： Wook Bong Lee , Ja Ho Koo , Sung Ho Moon , Jin Sam Kwak , Bin Chul Ihm , Dong Cheol Kim
IPC分类号： H04H20/71
CPC分类号： H04B7/2643
摘要： A method of transmitting data in a wireless communication system includes preparing a frame including a unicast subframe for unicast data and an MBS (Multicast and Broadcast Service) subframe for MBS data; and transmitting the unicast data and the MBS data via the frame, wherein the MBS subframe includes an idle time during which data is not carried, and the idle time is arranged to be at the temporally latest position in the MBS subframe. An MBS frame structure for using an appropriate CP with respect to MBS signals transmitted from multi-cell is provided, so an unnecessary idle time can be reduced, and thus, the efficiency of limited radio resources can be improved.
摘要翻译：一种在无线通信系统中发送数据的方法包括准备包括用于单播数据的单播子帧和用于MBS数据的MBS（组播和广播业务）子帧的帧; 以及经由所述帧发送所述单播数据和所述MBS数据，其中，所述MBS子帧包括不携带数据的空闲时间，并且所述空闲时间被布置为处于MBS子帧中的时间上最新的位置。提供了一种用于对从多小区发送的MBS信号使用适当的CP的MBS帧结构，因此可以减少不必要的空闲时间，从而可以提高有限的无线电资源的效率。

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