公开(公告)号：US08718191B2

公开(公告)日：2014-05-06

申请号：US13033202

申请日：2011-02-23

申请人： Il-Gu Lee ,  In-Kyeong Choi ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Eun-Young Choi ,  Sok-Kyu Lee

发明人： Il-Gu Lee ,  In-Kyeong Choi ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC分类号： H04L27/20

CPC分类号： H04L27/18 ,  H04L27/0008

摘要： A method for transmitting, by a transmitting terminal, data to a receiving terminal in a wireless communication system includes: generating a first detection field including symbols modulated by using a BPSK data tone; generating a second detection field including symbols modulated such that an even numbered subcarrier and an odd numbered subcarrier have a phase difference of 90 degrees; generating a data packet including the first detection field, the second detection field, and the data; and transmitting the data packet.

摘要翻译： 一种在无线通信系统中由发送终端向接收终端发送数据的方法包括：生成包括通过使用BPSK数据音调调制的符号的第一检测字段; 产生包括被调制的符号的第二检测场，使得偶数副载波和奇数副载波具有90度的相位差; 生成包括第一检测区域，第二检测区域和数据的数据分组; 并发送数据包。

公开(公告)号：US09042473B2

公开(公告)日：2015-05-26

申请号：US13371299

申请日：2012-02-10

申请人： Jong-Ee Oh ,  Hee-Jung Yu ,  Yu-Ro Lee ,  In-Kyeong Choi ,  Sok-Kyu Lee

发明人： Jong-Ee Oh ,  Hee-Jung Yu ,  Yu-Ro Lee ,  In-Kyeong Choi ,  Sok-Kyu Lee

IPC分类号： H04B7/08 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0854 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0663

摘要： Disclosed is an apparatus for receiving data in a communication system, including: a receiving unit configured to receive data transmitted from an access point (AP) by a multi-input multi-output (MIMO) scheme; a detecting unit configured to detect a data stream of the received data using an LQ decomposition scheme; a generating unit configured to generate channel information regarding the data stream; and a transmitting unit configured to feedback the channel information to the AP.

摘要翻译： 公开了一种用于在通信系统中接收数据的装置，包括：接收单元，被配置为通过多输入多输出（MIMO）方案接收从接入点（AP）发送的数据; 检测单元，被配置为使用LQ分解方案来检测所接收的数据的数据流; 生成单元，被配置为生成关于数据流的频道信息; 以及发送单元，被配置为将所述信道信息反馈给所述AP。

公开(公告)号：US20120207236A1

公开(公告)日：2012-08-16

申请号：US13371299

申请日：2012-02-10

申请人： Jong-Ee Oh ,  Hee-Jung Yu ,  Yu-Ro Lee ,  In-Kyeong Choi ,  Sok-Kyu Lee

发明人： Jong-Ee Oh ,  Hee-Jung Yu ,  Yu-Ro Lee ,  In-Kyeong Choi ,  Sok-Kyu Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0854 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0663

摘要： Disclosed is an apparatus for receiving data in a communication system, including: a receiving unit configured to receive data transmitted from an access point (AP) by a multi-input multi-output (MIMO) scheme; a detecting unit configured to detect a data stream of the received data using an LQ decomposition scheme; a generating unit configured to generate channel information regarding the data stream; and a transmitting unit configured to feedback the channel information to the AP.

摘要翻译： 公开了一种用于在通信系统中接收数据的装置，包括：接收单元，被配置为通过多输入多输出（MIMO）方案接收从接入点（AP）发送的数据; 检测单元，被配置为使用LQ分解方案来检测所接收的数据的数据流; 生成单元，被配置为生成关于数据流的频道信息; 以及发送单元，被配置为将所述信道信息反馈给所述AP。

公开(公告)号：US09246563B2

公开(公告)日：2016-01-26

申请号：US13504925

申请日：2010-10-30

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

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

IPC分类号： H04W4/00 ,  H04B7/04 ,  H04L25/02

CPC分类号： H04B7/0452 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/08 ,  H04L25/0204

摘要： The present invention particularly relates to a method and an apparatus for improving the efficiency of data transmission in a multi-user wireless transmission system. According to one embodiment of the present invention, the method, which is a transmission method of data in a multi-user wireless communication system, comprises the steps of: estimating channel states of each terminal through sounding or feedback information received from the terminals, and selecting terminals to which individual data are to be transmitted at the same time; determining a signal to noise ratio of the selected terminals, and calculating a precoding matrix; calculating a modulation and coding scheme (MCS) of each terminal and the number of symbols of data fields in accordance with the MCS of each terminal; dividing an area according to the number of terminals to which the data fields are to be simultaneously transmitted, if there are two or more selected terminals; and recalculating a reception signal to interference and noise ratio (SINR) for each area of each terminal, configuring a packet by resetting the MCS according to the recalculated SINR, and transmitting the configured packet.

摘要翻译： 本发明特别涉及一种用于提高多用户无线传输系统中的数据传输效率的方法和装置。 根据本发明的一个实施例，作为多用户无线通信系统中的数据的传输方法的方法包括以下步骤：通过从终端接收的探测或反馈信息来估计每个终端的信道状态，以及 选择要同时发送单个数据的终端; 确定所选终端的信噪比，并计算预编码矩阵; 根据每个终端的MCS计算每个终端的调制和编码方案（MCS）和数据字段的符号数; 如果存在两个或更多个所选择的终端，则根据要同时发送数据字段的终端数量划分一个区域; 并重新计算每个终端的每个区域的接收信号与干扰和噪声比（SINR），通过根据重新计算的SINR重新设置MCS来配置分组，并发送配置的分组。

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。

公开(公告)号：US20080225975A1

公开(公告)日：2008-09-18

申请号：US11574725

申请日：2005-02-28

申请人： Seung-Joon Lee ,  Choong-Il Yeh ,  Dong-Seung Kwon ,  Seung-Ku Hwang ,  Hyoung-Soo Lim ,  In-Kyeong Choi ,  Jong-Ee Oh ,  Kwang-Jae Lim ,  Seong-Rag Kim ,  Young-Seog Song ,  Yu-Ro Lee ,  Seong-Keun Oh ,  Moon-Ii Lee

发明人： Seung-Joon Lee ,  Choong-Il Yeh ,  Dong-Seung Kwon ,  Seung-Ku Hwang ,  Hyoung-Soo Lim ,  In-Kyeong Choi ,  Jong-Ee Oh ,  Kwang-Jae Lim ,  Seong-Rag Kim ,  Young-Seog Song ,  Yu-Ro Lee ,  Seong-Keun Oh ,  Moon-Ii Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/02 ,  H04B7/0697 ,  H04L1/0612

摘要： A space-time code used for a transmitter to transmit a plurality of data symbols to a receiver in a MIMO system, the space-time code including a code word matrix for transmitting an amount of data symbols corresponding to a product of the number of transmit antennas and a spatial multiplexing rate during one block period, wherein a row index indicates combined signals transmitted through different transmit antennas and a column index indicates time slots that correspond to the number of transmit antennas, and wherein the number of data symbols allocated to each transmit antenna in a code block corresponds to the spatial multiplexing rate, and the data symbols are combined by different combining coefficients for each transmit antenna at every time slot, and simultaneously transmitted through different transmit antennas, and each transmit antenna transmits a different set of data symbols at every time slot.

摘要翻译： 用于发射机的空时码将多个数据符号发送到MIMO系统中的接收机，所述时空码包括用于发送对应于发射次数的乘积的数据符号量的码字矩阵 天线和一个块周期内的空间多路复用率，其中行索引表示通过不同发射天线发射的组合信号，列索引指示对应于发射天线数的时隙，并且其中分配给每个发射的数据符号数 代码块中的天线对应于空间复用速率，并且通过在每个时隙对每个发射天线的不同组合系数组合数据符号，并且同时通过不同的发射天线发射，并且每个发射天线发射不同的数据符号集合 在每个时间段

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。

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。

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。

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。