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    Method for transmitting signal in wireless communication system
    1.
    发明授权
    Method for transmitting signal in wireless communication system 有权
    在无线通信系统中发送信号的方法

    公开(公告)号：US08040960B2

    公开(公告)日：2011-10-18

    申请号：US11981981

    申请日：2007-10-31

    申请人： Sang-Min Lee ,  Myeon-Gyun Cho ,  Yu-Seok Kim ,  Keum-Chan Whang ,  Jae-Won Kang ,  Sun-Young Lee

    发明人： Sang-Min Lee ,  Myeon-Gyun Cho ,  Yu-Seok Kim ,  Keum-Chan Whang ,  Jae-Won Kang ,  Sun-Young Lee

    IPC分类号： H04K1/10

    CPC分类号： H04L27/0008 ,  H04L5/0007 ,  H04L5/0044

    摘要： A method for transmitting a signal in a wireless communication system. The method comprises the steps of: grouping two subcarriers having different channel characteristics; identifying a number of all cases occurring when either equal symbols or different symbols, among symbols determined upon applying a first modulation scheme, are mapped to the two subcarriers; and mapping two subcarriers corresponding to each of the number of all cases to one symbol according to a second modulation scheme, and transmitting the signal, wherein a modulation order of the second modulation scheme is two times higher than a modulation order of the second modulation.

    摘要翻译： 一种在无线通信系统中发送信号的方法。 该方法包括以下步骤：对具有不同信道特性的两个子载波进行分组; 识别当在应用第一调制方案确定的符号中的任一个相等符号或不同符号时发生的所有情况的数量被映射到两个子载波; 以及根据第二调制方案将与所有情况中的每一个对应的两个子载波映射到一个符号，并且发送所述信号，其中所述第二调制方案的调制阶数是所述第二调制的调制阶数的两倍。

    Method for puncturing a low density parity check code
    3.
    发明申请
    Method for puncturing a low density parity check code 有权
    打孔低密度奇偶校验码的方法

    公开(公告)号：US20070101243A1

    公开(公告)日：2007-05-03

    申请号：US11541749

    申请日：2006-10-02

    申请人： Dong-Ho Kim ,  Yung-Soo Kim ,  Ye-Hoon Lee ,  Myeon-Gyun Cho ,  Hyo-Yol Park ,  Keum-Chan Whang ,  Kwang-Soon Kim ,  Jae-Won Kang

    发明人： Dong-Ho Kim ,  Yung-Soo Kim ,  Ye-Hoon Lee ,  Myeon-Gyun Cho ,  Hyo-Yol Park ,  Keum-Chan Whang ,  Kwang-Soon Kim ,  Jae-Won Kang

    IPC分类号： H03M13/03

    CPC分类号： H03M13/1102 ,  H03M13/6306 ,  H03M13/6362

    摘要： A method for puncturing a Low Density Parity Check (LDPC). The method includes a) setting a codeword length and the total number of bit nodes to be punctured; b) selecting a check node (or check nodes) with highest priority excluding check nodes completely checked in a current round; c) selecting a bit node (or bit nodes) with a highest priority excluding bit nodes completely checked among bit nodes connected to the selected check node (or check nodes); d) determining whether the selected bit node is a bit node to be punctured, that is, it is not systematic, not set by a puncturing prohibition flag; e) puncturing an associated bit node if the selected bit node is the bit node to be punctured, setting unpunctured bit nodes connected to the selected check node by a puncturing prohibition flag, decreasing the number of remained bit nodes to be punctured by 1 and increasing the number of connected punctured node of associated check node by 1; f) determining whether the number of remaining bits to be punctured is greater than 0; and g) returning to step b) if the number of remaining bits to be punctured is greater than 0, and ending a puncturing process if the number of remaining bits to be punctured is not greater than 0.

    摘要翻译： 一种用于打孔低密度奇偶校验（LDPC）的方法。 该方法包括：a）设置码字长度和要被穿孔的比特节点的总数; b）选择具有最高优先级的校验节点（或校验节点），不包括在当前轮次中完全检查的校验节点; c）选择具有最高优先级的比特节点（或比特节点），不包括连接到所选择的校验节点（或校验节点）的比特节点之间完全检查的比特节点; d）确定所选择的比特节点是否是要被穿孔的比特节点，即，它不是系统的，不被打孔禁止标志设置; e）如果选择的比特节点是要被穿孔的比特节点，则对相关联的比特节点进行穿孔，通过打孔禁止标志来设置连接到所选择的校验节点的未穿孔比特节点，将要被穿孔的剩余比特节点的数量减少1并增加 相关检查节点的连接穿孔节点数目为1; f）确定要穿孔的剩余比特数是否大于0; 以及g）如果要删除的剩余比特数大于0，则返回到步骤b），并且如果要穿孔的剩余比特数不大于0，则结束打孔处理。

    Apparatus and method for allocating resources in a mobile communication system
    4.
    发明申请
    Apparatus and method for allocating resources in a mobile communication system 审中-公开
    用于在移动通信系统中分配资源的装置和方法

    公开(公告)号：US20070058583A1

    公开(公告)日：2007-03-15

    申请号：US11514450

    申请日：2006-09-01

    申请人： Han-Gyu Cho ,  Sung-Hyun Cho ,  Sang-Boh Yun ,  Myeon-Gyun Cho ,  Dae-Sik Hong

    发明人： Han-Gyu Cho ,  Sung-Hyun Cho ,  Sang-Boh Yun ,  Myeon-Gyun Cho ,  Dae-Sik Hong

    IPC分类号： H04Q7/00

    CPC分类号： H04W72/06 ,  H04L47/10 ,  H04W72/048 ,  Y02D70/00

    摘要： A method is provided for allocating resources in a base station (BS) of a mobile communication system. The method includes calculating a priority value of each sub-carrier for each mobile station (MS) according to a data rate required by each MS and an average channel gain for each MS, the priority value based on an average channel gain between MSs; and allocating the sub-carriers to a MS according to the priority value calculated for each sub-carrier for each MS.

    摘要翻译： 提供了一种用于在移动通信系统的基站（BS）中分配资源的方法。 该方法包括根据每个MS所要求的数据速率和每个MS的平均信道增益来计算每个移动台（MS）的每个子载波的优先级值，该优先级值基于MS之间的平均信道增益; 以及根据为每个MS为每个子载波计算的优先级值，向MS分配子载波。

    Method for transmitting data in a communication system
    5.
    发明授权
    Method for transmitting data in a communication system 有权
    在通信系统中发送数据的方法

    公开(公告)号：US07986972B2

    公开(公告)日：2011-07-26

    申请号：US11702907

    申请日：2007-02-06

    申请人： Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

    发明人： Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

    IPC分类号： H04M1/00

    CPC分类号： H04B7/0452 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0689 ,  H04B7/0691

    摘要： A method is provided a method for transmitting data in a MIMO communication system. The method includes receiving feedback information including channel quality information of transmission antennas from terminals; selecting one of a multi-user mode and a single user mode according to the channel quality information; extracting information for the selected mode from the feedback information; selecting at least one terminal and a preceding matrix of at least one transmission antenna through which data is transmitted according to the extracted information and the selected mode; and transmitting data using the selected precoding matrix and information of the selected terminal.

    摘要翻译： 提供了一种在MIMO通信系统中发送数据的方法。 该方法包括从终端接收包括发送天线的信道质量信息的反馈信息; 根据信道质量信息选择多用户模式和单用户模式之一; 从反馈信息中提取所选模式的信息; 根据所提取的信息和所选择的模式，选择数据被发送的至少一个发射天线的至少一个终端和前一矩阵; 以及使用所选择的预编码矩阵和所选择的终端的信息来发送数据。

    Method for transmitting signal in wireless communication system
    7.
    发明申请
    Method for transmitting signal in wireless communication system 有权
    在无线通信系统中发送信号的方法

    公开(公告)号：US20080101491A1

    公开(公告)日：2008-05-01

    申请号：US11981981

    申请日：2007-10-31

    申请人： Sang-Min Lee ,  Myeon-Gyun Cho ,  Yu-Seok Kim ,  Keum-Chan Whang ,  Jae-Won Kang ,  Sun-Young Lee

    发明人： Sang-Min Lee ,  Myeon-Gyun Cho ,  Yu-Seok Kim ,  Keum-Chan Whang ,  Jae-Won Kang ,  Sun-Young Lee

    IPC分类号： H04L27/28

    CPC分类号： H04L27/0008 ,  H04L5/0007 ,  H04L5/0044

    摘要： A method for transmitting a signal in a wireless communication system. The method comprises the steps of: grouping two subcarriers having different channel characteristics; identifying a number of all cases occurring when either equal symbols or different symbols, among symbols determined upon applying a first modulation scheme, are mapped to the two subcarriers; and mapping two subcarriers corresponding to each of the number of all cases to one symbol according to a second modulation scheme, and transmitting the signal, wherein a modulation order of the second modulation scheme is two times higher than a modulation order of the second modulation.

    摘要翻译： 一种在无线通信系统中发送信号的方法。 该方法包括以下步骤：对具有不同信道特性的两个子载波进行分组; 识别当在应用第一调制方案确定的符号中的任一个相等符号或不同符号时发生的所有情况的数量被映射到两个子载波; 以及根据第二调制方案将与所有情况中的每一个对应的两个子载波映射到一个符号，并且发送所述信号，其中所述第二调制方案的调制阶数是所述第二调制的调制阶数的两倍。

    Dynamic channel allocation method in an OFDMA mobile communication system
    8.
    发明申请
    Dynamic channel allocation method in an OFDMA mobile communication system 审中-公开
    OFDMA移动通信系统中的动态信道分配方法

    公开(公告)号：US20070015469A1

    公开(公告)日：2007-01-18

    申请号：US11475646

    申请日：2006-06-27

    申请人： Myeon-Gyun Cho ,  Jong-Hyung Kwun ,  Sung-Hyun Cho

    发明人： Myeon-Gyun Cho ,  Jong-Hyung Kwun ,  Sung-Hyun Cho

    IPC分类号： H04B7/00

    CPC分类号： H04W72/08 ,  H04L5/023 ,  H04L27/2608 ,  H04W72/0413 ,  H04W72/085

    摘要： A method of sending feedback information used for dynamic channel allocation, and allocating resources based on the feedback information in an OFDMA mobile communication system is provided. For this purpose, an MS feeds back channel gain variations at channel status measuring points distributed across a total frequency band to a BS. The BS estimates the channel status of the MS using the channel gain variations, and allocates optimal resources to the MS according to the estimated channel status.

    摘要翻译： 提供了一种发送用于动态信道分配的反馈信息的方法，并且在OFDMA移动通信系统中基于反馈信息分配资源。 为此，MS将在整个频带上分布的信道状态测量点的信道增益变化反馈给BS。 BS使用信道增益变化来估计MS的信道状态，并且根据估计的信道状态向MS分配最佳资源。

    Velocity estimation apparatus and method using level crossing rate
    9.
    发明授权
    Velocity estimation apparatus and method using level crossing rate 有权
    速度估计装置和方法使用等级穿越率

    公开(公告)号：US07120440B2

    公开(公告)日：2006-10-10

    申请号：US10822130

    申请日：2004-04-09

    申请人： Myeon-Gyun Cho ,  Daesik Hong

    发明人： Myeon-Gyun Cho ,  Daesik Hong

    IPC分类号： H04Q7/20

    CPC分类号： G01S11/02 ,  H04W36/32 ,  H04W64/006

    摘要： Disclosed is a velocity estimator using a level crossing rate. The velocity estimator comprises a power calculator for calculating power values of a signal received from a mobile terminal; a mean power calculator for calculating mean power values for M power values according to a predetermined down-sampling factor M; an interpolator for interpolating the mean power values according to a predetermined interpolation ratio L; a root mean square calculator for calculating a root mean square value using an output of the interpolator; a level crossing counter for counting a level crossing frequency representing how many times the output of the interpolator crosses a level crossing threshold determined according to the root mean square value, for a predetermined time period; and a velocity calculator for calculating a velocity estimation value of the mobile terminal using the level crossing frequency.

    摘要翻译： 公开了使用等级穿越率的速度估计器。 速度估计器包括：功率计算器，用于计算从移动终端接收的信号的功率值; 平均功率计算器，用于根据预定的下采样因子M计算M个功率值的平均功率值; 内插器，用于根据预定的插值比率L内插所述平均功率值; 使用内插器的输出来计算均方根值的均方根计算器; 一个电平交叉计数器，用于计数表示在根据均方根值确定的内插器的输出跨越多少倍的电平交叉频率的电平交叉频率; 以及速度计算器，用于使用所述电平交叉频率来计算所述移动终端的速度估计值。

    System and method for allocating a channel in a communication system
    10.
    发明授权
    System and method for allocating a channel in a communication system 有权
    用于在通信系统中分配信道的系统和方法

    公开(公告)号：US08014784B2

    公开(公告)日：2011-09-06

    申请号：US11706853

    申请日：2007-02-15

    申请人： Myeon-Gyun Cho ,  Yung-Soo Kim ,  Hyung-Myung Kim ,  Tae-Sung Kang ,  Dae-Hyun Kim ,  Woo-Geun Ahn

    发明人： Myeon-Gyun Cho ,  Yung-Soo Kim ,  Hyung-Myung Kim ,  Tae-Sung Kang ,  Dae-Hyun Kim ,  Woo-Geun Ahn

    IPC分类号： H04W72/00 ,  H04B7/00 ,  H04L12/50

    CPC分类号： H04W72/0406 ,  H04L1/0026 ,  H04L5/023 ,  H04L27/2608 ,  H04W72/085

    摘要： A method and system for allocating a channel are provided in a communication system including a plurality of Mobile Stations (MSs) and Base Stations (BSs) for providing a communication service to the plurality of MSs. A BS transmits an average Channel Quality Information (CQI) request to MSs. The MSs measure CQI with respect to their channels in response to the request from the BS, compute average CQI from the measured CQI, and transmit the average CQI to the BS. The BS selects a predefined number of MSs according to the average CQI received from the MSs and sets an MS group. The BS transmits a CQI request to the MS group. The MSs of the MS group transmit the CQI to the BS. The BS receives the CQI from the MS group and allocates a channel according to the CQI.

    摘要翻译： 在包括用于向多个MS提供通信服务的多个移动站（MS）和基站（BS）的通信系统中提供了用于分配信道的方法和系统。 BS向MS发送平均信道质量信息（CQI）请求。 MS响应于来自BS的请求测量相对于它们的信道的CQI，从测量的CQI计算平均CQI，并将平均CQI发送到BS。 BS根据从MS接收到的平均CQI来选择预定数量的MS，并设置MS组。 BS向MS组发送CQI请求。 MS组的MS向BS发送CQI。 BS从MS组接收CQI，并根据CQI分配信道。