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    Method and apparatus for receiving signal for MIMO system
    1.
    发明授权
    Method and apparatus for receiving signal for MIMO system 有权
    用于MIMO系统接收信号的方法和装置

    公开(公告)号：US08406349B2

    公开(公告)日：2013-03-26

    申请号：US12808726

    申请日：2008-06-05

    申请人： Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    发明人： Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    IPC分类号： H04L27/06

    CPC分类号： H04L25/03318 ,  H04L25/0242 ,  H04L25/03305 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03624

    摘要： Provided is a method and apparatus for receiving a signal for a MIMO system. The receiving apparatus includes: a QR decomposer for calculating a unitary matrix Q, an upper triangle matrix R, and a vector size for a received signal; a multiple dimension detector for calculating a first LLR for an output of the QR decomposer through multiple dimension detection; an inverse matrix and weight calculator for calculating an inverse matrix for the upper triangle matrix R and a weight; an interference remover for regenerating a symbol for a demodulated data stream using the fist LLR and removing interference from an output vector of the QR decomposer using the regenerated symbol; and a weight zero forcing unit for performing zero forcing on the interference removed output vector from the interference remover using the inverse matrix of the upper triangle matrix R and the weight and calculating a second LLR.

    摘要翻译： 提供了一种用于接收MIMO系统的信号的方法和装置。 接收装置包括：QR分解器，用于计算酉矩阵Q，上三角矩阵R和接收信号的向量大小; 多维度检测器，用于通过多维度检测计算QR分解器的输出的第一LLR; 用于计算上三角矩阵R和权重的逆矩阵的逆矩阵和权重计算器; 干扰去除器，用于使用第一LLR再生用于解调数据流的符号，并使用再生符号去除来自QR分解器的输出向量的干扰; 以及加权零强制单元，用于使用上三角矩阵R和权重的逆矩阵和权重对来自干扰去除器的干扰去除输出向量执行零强制并计算第二LLR。

    METHOD AND APPARATUS FOR RECEIVING SIGNAL FOR MIMO SYSTEM
    2.
    发明申请
    METHOD AND APPARATUS FOR RECEIVING SIGNAL FOR MIMO SYSTEM 有权
    用于MIMO系统接收信号的方法和装置

    公开(公告)号：US20100266072A1

    公开(公告)日：2010-10-21

    申请号：US12808726

    申请日：2008-06-05

    申请人： Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    发明人： Yuro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    IPC分类号： H04L27/06

    CPC分类号： H04L25/03318 ,  H04L25/0242 ,  H04L25/03305 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03624

    摘要： Provided is a method and apparatus for receiving a signal for a MIMO system. The receiving apparatus includes: a QR decomposer for calculating a unitary matrix Q, an upper triangle matrix R, and a vector size for a received signal; a multiple dimension detector for calculating a first LLR for an output of the QR decomposer through multiple dimension detection; an inverse matrix and weight calculator for calculating an inverse matrix for the upper triangle matrix R and a weight; an interference remover for regenerating a symbol for a demodulated data stream using the fist LLR and removing interference from an output vector of the QR decomposer using the regenerated symbol; and a weight zero forcing unit for performing zero forcing on the interference removed output vector from the interference remover using the inverse matrix of the upper triangle matrix R and the weight and calculating a second LLR.

    摘要翻译： 提供了一种用于接收MIMO系统的信号的方法和装置。 接收装置包括：QR分解器，用于计算酉矩阵Q，上三角矩阵R和接收信号的向量大小; 多维度检测器，用于通过多维度检测计算QR分解器的输出的第一LLR; 用于计算上三角矩阵R和权重的逆矩阵的逆矩阵和权重计算器; 干扰去除器，用于使用第一LLR再生用于解调数据流的符号，并使用再生符号去除来自QR分解器的输出向量的干扰; 以及加权零强制单元，用于使用上三角矩阵R和权重的逆矩阵和权重对来自干扰去除器的干扰去除输出向量执行零强制并计算第二LLR。

    Method of transmitting data frame to multi-user in wireless communication systems
    3.
    发明授权
    Method of transmitting data frame to multi-user in wireless communication systems 有权
    在无线通信系统中向多用户发送数据帧的方法

    公开(公告)号：US08675556B2

    公开(公告)日：2014-03-18

    申请号：US13046423

    申请日：2011-03-11

    申请人： Yu-Ro Lee ,  Yun-Joo Kim ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    发明人： Yu-Ro Lee ,  Yun-Joo Kim ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    IPC分类号： H04W4/00

    CPC分类号： H04W72/005 ,  H04W4/08

    摘要： Provided a method for simultaneously transmitting data frames to a plurality of STAs in a multi-user based wireless communication system. The method includes: requesting sounding or feedback for the plurality of STAs by using a first control information frame containing first group information; receiving responses to the sounding or feedback request; reconfiguring the plurality of STAs composing the first group into a plurality of second groups on the basis of the responses such that the sum of maximum transport streams of the respective STAs composing one group becomes equal to or less than the maximum number of streams transmitted by an AP; transmitting a second control information frame containing second group information on the respective second groups to the plurality of STAs composing the first group; and transmitting data frames by using the second group information.

    摘要翻译： 提供了一种用于在基于多用户的无线通信系统中同时向多个STA发送数据帧的方法。 该方法包括：通过使用包含第一组信息的第一控制信息帧来请求对多个STA的探测或反馈; 接收响应声音或反馈请求; 基于所述响应，将构成第一组的多个STA重新配置成多个第二组，使得构成一组的各个STA的最大传输流之和变得等于或小于由一 AP; 将包含关于各个第二组的第二组信息的第二控制信息帧发送到构成第一组的多个STA; 以及通过使用第二组信息发送数据帧。

    Apparatus and method for providing WLAN service using multiple channel
    4.
    发明授权
    Apparatus and method for providing WLAN service using multiple channel 有权
    使用多个信道提供WLAN业务的装置和方法

    公开(公告)号：US08422419B2

    公开(公告)日：2013-04-16

    申请号：US12615557

    申请日：2009-11-10

    申请人： Yun-Joo Kim ,  Jeeyon Choi ,  Yoo-Seung Song ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    发明人： Yun-Joo Kim ,  Jeeyon Choi ,  Yoo-Seung Song ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Minho Cheong ,  Sok-Kyu Lee

    IPC分类号： H04B7/14 ,  H04B7/15 ,  H04B3/36 ,  H04W4/00

    CPC分类号： H04W84/12

    摘要： Provided are an apparatus and method for providing a WLAN service using multiple channels. The wireless local area network (WLAN) service apparatus includes a service request receiver configured to receive service request information from a first wireless terminal accessed through a first channel, a data receiver configured to receive data from a first access point accessed through a second channel according to the service request information, a data transmitter configured to transmit the data to the first wireless terminal in a predetermined service area, and an access controller configured to control the first wireless terminal and the first access point to be accessed through different channels.

    摘要翻译： 提供了一种用于使用多个信道来提供WLAN服务的装置和方法。 无线局域网（WLAN）服务设备包括：服务请求接收器，被配置为从通过第一信道访问的第一无线终端接收服务请求信息;数据接收器，被配置为从通过第二信道访问的第一接入点接收数据， 服务请求信息;数据发送器，被配置为将数据发送到预定服务区域中的第一无线终端;以及接入控制器，被配置为控制要通过不同信道访问的第一无线终端和第一接入点。

    Transmitter and receiver for giga-bps high-throughput wireless communication system with multiple antennas and multiple bands
    5.
    发明授权
    Transmitter and receiver for giga-bps high-throughput wireless communication system with multiple antennas and multiple bands 有权
    用于giga-bps高吞吐量无线通信系统的发射机和接收机，具有多个天线和多个频带

    公开(公告)号：US08396102B2

    公开(公告)日：2013-03-12

    申请号：US12808179

    申请日：2008-11-28

    申请人： Minho Cheong ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

    发明人： Minho Cheong ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Sok-Kyu Lee

    IPC分类号： H04B1/38

    CPC分类号： H04B1/40

    摘要： Provided is a transmitter and a receiver for a high-throughput wireless communication system. The transmitter includes a baseband transmitter, a DIF transmitter, and a RF transmitter. The baseband transmitter performs a MAC protocol process on transmission signals and reception signals and processes the transmission signals by dividing an entire transmission band into n bands in a physical layer process of the transmission data, where n is a natural number. The DIF transmitter combines transmission signals of each band from the baseband transmitter and outputs m channel signals corresponding to a number of transmission antennas, where m is a natural number. The RF transmitter modulates each of the channel signals transferred from the DIF transmitter and transmits the modulated signals through m antennas.

    摘要翻译： 提供了一种用于高吞吐量无线通信系统的发射机和接收机。 发射机包括基带发射机，DIF发射机和RF发射机。 基带发射机对传输信号和接收信号执行MAC协议处理，并且通过在传输数据的物理层处理中将整个传输频带划分成n个频带来处理传输信号，其中n是自然数。 DIF发射机组合来自基带发射机的每个频带的传输信号，并输出对应于多个发射天线的m个信道信号，其中m是自然数。 RF发射机调制从DIF发射机传送的每个信道信号，并通过m个天线发送调制信号。

    APPARATUS AND METHOD FOR UPDATING CHECK NODE OF LOW-DENSITY PARITY CHECK CODES
    7.
    发明申请
    APPARATUS AND METHOD FOR UPDATING CHECK NODE OF LOW-DENSITY PARITY CHECK CODES 审中-公开
    检查低密度奇偶校验码代码的装置和方法

    公开(公告)号：US20100037119A1

    公开(公告)日：2010-02-11

    申请号：US12517455

    申请日：2007-12-05

    申请人： Jong-Ee Oh ,  Yu-Ro Lee ,  Chanho Yoon ,  Minho Cheong ,  Sok-Kyu Lee ,  Yoo-Seung Song ,  Younggyun Kim

    发明人： Jong-Ee Oh ,  Yu-Ro Lee ,  Chanho Yoon ,  Minho Cheong ,  Sok-Kyu Lee ,  Yoo-Seung Song ,  Younggyun Kim

    IPC分类号： H03M13/05 ,  G06F11/10

    CPC分类号： H03M13/1122 ,  H03M13/1117 ,  H03M13/112 ,  H03M13/6527 ,  H03M13/6544 ,  H03M13/6577 ,  H03M13/658 ,  H03M13/6583

    摘要： An apparatus and method for updating a check node of a low-density parity check (LDPC) code in order to decode the LDPC code are provided. The method includes the operations of: (a) obtaining a first bit of a first minimum value among input values, the number of input values being equal to the number of degrees of the check node, by performing an AND operation on first bits of the input values, the first bits being most significant bits of the input values; (b) obtaining result values by switching and sequentially performing an XOR operation and an OR operation on the first bit of the first minimum value and each of the first bits of the input values; and (c) performing operations (a) and (b) on the result values set as input values and performing operations (a) and (b) a number of times corresponding to the number of bits of each input value, that is, repeating until last bits are set as input values, to thereby obtain the first minimum value, the last bits being least significant bits of the input values. Accordingly, the complexity of hardware is reduced, and super high-speed processing is possible.

    摘要翻译： 提供了一种用于更新低密度奇偶校验（LDPC）码的校验节点以便解码LDPC码的装置和方法。 该方法包括以下操作：（a）通过对所述校验节点的第一比特执行“与”运算，获得输入值中的第一最小值的第一比特，输入值的数目等于校验节点的度数。 输入值，第一位是输入值的最高有效位; （b）通过对所述第一最小值的所述第一位和所述输入值的所述第一位中的每一个进行切换和顺序执行异或运算和或运算来获得结果值; 和（c）对设置为输入值的结果值执行操作（a）和（b），并且执行操作（a）和（b）与每个输入值的位数相对应的次数，即重复 直到最后的位被设置为输入值为止，从而获得第一最小值，最后的位是输入值的最低有效位。 因此，硬件的复杂度降低，超高速处理成为可能。

    Apparatus and method for supporting access in wireless communication system
    8.
    发明授权
    Apparatus and method for supporting access in wireless communication system 有权
    用于在无线通信系统中支持接入的装置和方法

    公开(公告)号：US08553626B2

    公开(公告)日：2013-10-08

    申请号：US12634297

    申请日：2009-12-09

    申请人： Minho Cheong ,  Jong-Ee Oh ,  Yu-Ro Lee ,  Sok-Kyu Lee

    发明人： Minho Cheong ,  Jong-Ee Oh ,  Yu-Ro Lee ,  Sok-Kyu Lee

    IPC分类号： H04W72/04

    CPC分类号： H04W72/10 ,  H04W74/0808

    摘要： An apparatus and method for supporting access are provided. The method for supporting access in a wireless communication system includes: checking a plurality of stations (STA) which are to get access in a network and a plurality of access nodes of the respective STAs; determining the access priorities of the checked STAs and the priorities of the access nodes of the respective STAs; dividing a wireless resource and channel available in the network into multiple wireless resources and channels; and connecting the access nodes of the respective STAs to the multiple wireless resources and channels using a multi-channel media access control (MAC) protocol.

    摘要翻译： 提供一种用于支持访问的装置和方法。 用于在无线通信系统中支持接入的方法包括：检查要在网络中访问的多个站（STA）和相应STA的多个接入节点; 确定所检查的STA的接入优先级和相应STA的接入节点的优先级; 将网络中可用的无线资源和信道划分为多个无线资源和信道; 以及使用多信道媒体访问控制（MAC）协议将各个STA的接入节点连接到多个无线资源和信道。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A MIMO SYSTEM
    9.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A MIMO SYSTEM 有权
    用于在MIMO系统中发送和接收数据的方法和装置

    公开(公告)号：US20120213305A1

    公开(公告)日：2012-08-23

    申请号：US13434681

    申请日：2012-03-29

    申请人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

    发明人： Jong-Ee OH ,  Minho Cheong ,  Sok-Kyu Lee

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0452 ,  H04B7/0413 ,  H04L1/0083 ,  H04L1/0643 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/003 ,  H04W28/06 ,  H04W84/12

    摘要： The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

    摘要翻译： 本发明涉及用于发送和接收数据的方法和装置。 根据本发明的一个实施例的使用可变频带的MIMO系统中的从发送者终端到接收终端的数据传输方法包括：根据应用于数据传输的频带重复产生信号场 帧; 生成包括数据的数据字段; 生成包括信号字段和数据字段的数据帧; 并将数据帧发送到接收机终端。 本发明的优点在于，能够更有效地发送与MIMO系统中的发送方终端发送到接收终端的数据一起发送的信号场。