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    METHOD FOR TRANSMITTING DATA IN MULTI-USER WIRELESS COMMUNICATION SYSTEM
    41.
    发明申请
    METHOD FOR TRANSMITTING DATA IN MULTI-USER WIRELESS COMMUNICATION SYSTEM 有权
    用于在多用户无线通信系统中传输数据的方法

    公开(公告)号：US20120207097A1

    公开(公告)日：2012-08-16

    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

    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 theMCS 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。

    Method for producing parity check matrix for low complexity and high speed decoding, and apparatus and method for coding low density parity check code using the same
    42.
    发明授权
    Method for producing parity check matrix for low complexity and high speed decoding, and apparatus and method for coding low density parity check code using the same 失效
    用于生成用于低复杂度和高速解码的奇偶校验矩阵的方法，以及使用其编码低密度奇偶校验码的装置和方法

    公开(公告)号：US08205131B2

    公开(公告)日：2012-06-19

    申请号：US12113638

    申请日：2008-05-01

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

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

    IPC分类号： H03M13/00 ,  G06F11/00

    CPC分类号： H03M13/116 ,  H03M13/1185 ,  H03M13/611

    摘要： Provided are a method for producing a parity check matrix for low complexity and high speed decoding, and an apparatus and method for coding a Low Density Parity Check (LDPC) code using the same. The method includes: calculating a cyclic shift value of a subblock to a matrix; and when the calculated cyclic shift values of the subblock are arrayed in the matrix, producing a parity check matrix by arraying the cyclic shift values of the subblock except ‘0 matrix’ without duplication to any one column.

    摘要翻译： 提供了一种用于产生用于低复杂度和高速解码的奇偶校验矩阵的方法，以及用于使用其编码低密度奇偶校验（LDPC）码的装置和方法。 该方法包括：将子块的循环移位值计算到矩阵; 并且当将所计算的子块的循环移位值排列在矩阵中时，通过将除“0矩阵”之外的子块的循环移位值排列成任何一列，从而产生奇偶校验矩阵。

    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN A COMMUNICATION SYSTEM
    43.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN A COMMUNICATION SYSTEM 审中-公开
    用于在通信系统中发送/接收数据的装置和方法

    公开(公告)号：US20110283155A1

    公开(公告)日：2011-11-17

    申请号：US13105650

    申请日：2011-05-11

    申请人： Il-Gu LEE ,  Jong-Ee Oh ,  Sok-Kyu Lee

    发明人： Il-Gu LEE ,  Jong-Ee Oh ,  Sok-Kyu Lee

    IPC分类号： H03M13/05 ,  G06F11/10

    CPC分类号： H04L1/0079 ,  H03M13/09

    摘要： A data transmission apparatus in a wireless communication system includes: a data field generation unit configured to generate a data field for transmitting data; a signal field generation unit configured to generate a signal field for transmitting information on the data field; and a transmission unit configured to transmit a data packet containing the data field and the signal field. The signal field includes a rate bit, a reservation bit, a length bit, a parity check bit, and a tail bit, and the data transmission apparatus transmits a check bit for checking whether the signal field is normal or not through two or more bits of the bits of the signal field.

    摘要翻译： 无线通信系统中的数据发送装置包括：数据字段生成部，生成用于发送数据的数据字段; 信号场产生单元，被配置为生成用于发送关于数据场的信息的信号场; 以及发送单元，被配置为发送包含数据字段和信号字段的数据分组。 信号字段包括速率位，保留位，长度位，奇偶校验位和尾位，并且数据发送装置通过两位或多位发送用于检查信号域是否正常的校验位 的信号字段的位。

    METHOD FOR REDUCING POWER CONSUMPTION IN WIRELESS COMMUNICATION SYSTEM
    44.
    发明申请
    METHOD FOR REDUCING POWER CONSUMPTION IN WIRELESS COMMUNICATION SYSTEM 有权
    降低无线通信系统功耗的方法

    公开(公告)号：US20110280168A1

    公开(公告)日：2011-11-17

    申请号：US13081930

    申请日：2011-04-07

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

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

    IPC分类号： H04W52/02

    CPC分类号： H04W52/0203 ,  H04W52/0229 ,  Y02D70/142

    摘要： A method for reducing power consumption in a wireless communication system includes: generating a descramble initial value by using at least some bits of identification information of an STA, which is known to an AP or base station and the STA; generating a first descramble sequence by using the generated descramble initial value and comparing at least some bits of the generated first descramble sequence with at least some bits of a service field of a currently-received signal; as the comparison result, when it is determined that the destination of the currently-received signal is not set to the STA, stopping the signal reception; and as the comparison result, when it is determined that the destination of the currently-received signal is set to the STA, generating a second descramble sequence by using the descramble initial value and descrambling the currently-received signal.

    摘要翻译： 一种用于降低无线通信系统中功耗的方法，包括：通过使用AP或基站和STA已知的STA的识别信息的至少一些比特来生成解扰初始值; 通过使用所生成的解扰初始值产生第一解扰序列，并将所生成的第一解扰序列的至少一些比特与当前接收信号的服务字段的至少一些比特进行比较; 作为比较结果，当确定当前接收的信号的目的地未被设置到STA时，停止信号接收; 并且作为比较结果，当确定当前接收的信号的目的地被设置为STA时，通过使用解扰初始值产生第二解扰序列并对当前接收到的信号进行解扰。

    MIMO RECEIVER, QR DECOMPOSITION AND MULTI-DIMENSIONAL DETECTION USED IN THE MIMO RECEIVER
    46.
    发明申请
    MIMO RECEIVER, QR DECOMPOSITION AND MULTI-DIMENSIONAL DETECTION USED IN THE MIMO RECEIVER 审中-公开
    MIMO接收机中使用的MIMO接收机，QR分解和多维检测

    公开(公告)号：US20090154586A1

    公开(公告)日：2009-06-18

    申请号：US12177418

    申请日：2008-07-22

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

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

    IPC分类号： H04L1/02 ,  H04L27/06

    CPC分类号： H04L5/0023 ,  H04L25/0246 ,  H04L25/067 ,  H04L27/2647

    摘要： Provided are a receiver of a Multiple Input Multiple Output (MIMO) system, QR decomposition and multi-dimensional detection used in the receiver. The receiver includes: a QR decomposing unit for performing a QR decomposing operation in cycles 1 to nT-n−1, and performing a column exchanging operation in cycles nT-n to nT as QR decomposition where n and T are an integer number; and a multi-dimensional detecting unit for receiving a first R matrix Ry and a second R matrix Rz from the QR decomposing unit, calculating a first distance value for detecting an mth symbol for the first R matrix and a second distance value for detecting an mth symbol for the second R matrix, and simultaneously detecting an mth symbol and an (m−1)th symbol using the first distance value and the second distance value.

    摘要翻译： 提供了多输入多输出（MIMO）系统的接收机，在接收机中使用QR分解和多维检测。 接收机包括：QR分解单元，用于在周期1至nT-n-1中执行QR分解操作，并且以周期nT-n至nT执行列交换操作作为QR分解，其中n和T为整数; 以及多维检测单元，用于从QR分解单元接收第一R矩阵Ry和第二R矩阵Rz，计算用于检测用于第一R矩阵的第m个符号的第一距离值和用于检测第m个第m个的第二距离值 并且使用第一距离值和第二距离值同时检测第m个符号和第（m-1）个符号。

    Medium access control method and data transmission method using the same in wireless local area network
    48.
    发明授权
    Medium access control method and data transmission method using the same in wireless local area network 失效
    在无线局域网中采用相同的媒体访问控制方法和数据传输方法

    公开(公告)号：US08300612B2

    公开(公告)日：2012-10-30

    申请号：US12129007

    申请日：2008-05-29

    申请人： Jee-Yon Choi ,  Yoo-Seung Song ,  Yun-Joo Kim ,  Hyun-Gu Park ,  Kwhang-Hyun Ryu ,  Sok-Kyu Lee

    发明人： Jee-Yon Choi ,  Yoo-Seung Song ,  Yun-Joo Kim ,  Hyun-Gu Park ,  Kwhang-Hyun Ryu ,  Sok-Kyu Lee

    IPC分类号： H04W4/00 ,  H04W72/00 ,  H04J3/24 ,  H04Q11/00

    CPC分类号： H04W72/1278 ,  H04W28/20

    摘要： Provided are a MAC method and a method for transmitting data using the same in a WLAN. The MAC method includes: transmitting a bandwidth scheduling report frame for informing information on downlinks and uplinks allocated to a terminal by including the bandwidth scheduling report frame in one of the downlinks where the bandwidth scheduling report frame includes a plurality of downlinks, a plurality of uplinks, and a plurality of short uplinks and the number of the plurality of downlinks is equal to the number of the plurality of uplinks; receiving a bandwidth request frame for requesting bandwidth allocation through one of the uplinks; and allocating a bandwidth to each of the terminals by an unit of the downlink and the uplink.

    摘要翻译： 提供了一种MAC方法和一种用于在WLAN中发送数据的方法。 MAC方法包括：通过在带宽调度报告帧包括多个下行链路的下行链路之一中包括带宽调度报告帧来发送用于通知分配给终端的下行链路和上行链路的信息的带宽调度报告帧，多个上行链路 和多个短上行链路，并且多个下行链路的数量等于多个上行链路的数量; 接收用于通过所述上行链路之一请求带宽分配的带宽请求帧; 并且通过下行链路和上行链路的单元向每个终端分配带宽。

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PACKET IN WIRELESS COMMUNICATION SYSTEM
    49.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PACKET IN WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中发送/接收分组的方法和装置

    公开(公告)号：US20110286378A1

    公开(公告)日：2011-11-24

    申请号：US13047477

    申请日：2011-03-14

    申请人： Yun-Joo KIM ,  Sok-Kyu Lee

    发明人： Yun-Joo KIM ,  Sok-Kyu Lee

    IPC分类号： H04W4/00 ,  H04H20/71

    CPC分类号： H04W72/005 ,  H04L45/74 ,  H04L69/22 ,  H04W4/06 ,  H04W28/06 ,  H04W72/0406

    摘要： A method for simultaneously transmitting packets having different lengths to two or more users in a wireless communication system includes: generating the packets to transmit to the respective users, the packets containing information on the maximum transmission length of the packets having different lengths; and simultaneously transmitting the generated packets to the respective users. The maximum transmission length is represented by the number of symbols, and each of the packets sequentially contains control information required for transmitting the packet, data, a tail field, and a PHY pad field, and is generated by inserting a MAC pad between the control information and the data such that the tail field and the PHY pad field are positioned at the last byte of the last symbol of the maximum transmission length.

    摘要翻译： 一种用于在无线通信系统中同时向两个或多个用户发送具有不同长度的分组的方法包括：生成要发送给各个用户的分组，所述分组包含关于具有不同长度的分组的最大传输长度的信息; 同时将生成的分组发送给各个用户。 最大传输长度由符号数表示，并且每个分组顺序地包含用于发送分组所需的控制信息，数据，尾部字段和PHY填充字段，并且通过在控制器之间插入MAC垫来生成 信息和数据，使得尾部场和PHY垫场位于最大传输长度的最后一个符号的最后一个字节。