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    • 2. 发明申请
    • METHOD AND APPARATUS FOR DETECTING RECEIVED SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    • 在无线通信系统中检测接收信号的方法和装置
    • US20120134438A1
    • 2012-05-31
    • US13303877
    • 2011-11-23
    • Hwa-Sun YOUHyo-Yol Park
    • Hwa-Sun YOUHyo-Yol Park
    • H04L27/06H04L27/00H04L27/18H04L27/22
    • H04L5/0037H04L5/0092H04L25/067
    • A method for detecting a received signal by a Base Station (BS) in a communication system is provided. The method includes receiving a BandWidth Request (BW REQ) indicator, determining first interference signal streams representing BW REQ messages, determining whether the first interference signal streams include at least one second interference signal stream which is in a null state, determining a first Maximum Likelihood (ML) metric, determining a second ML metric for each of a case where a value of bits constituting each of third interference signal streams except for the at least one second interference signal stream among the first interference signal streams is 1, and calculating a minimum error distance of the BW REQ messages received from Mobile Stations (MSs) based on the first ML metrics and the second ML metrics.
    • 提供了一种用于在通信系统中由基站(BS)检测接收信号的方法。 该方法包括接收带宽请求(BW REQ)指示符,确定表示BW REQ消息的第一干扰信号流,确定第一干扰信号流是否包括处于空状态的至少一个第二干扰信号流,确定第一最大似然 (ML)度量,对于构成每个第一干扰信号流之间的至少一个第二干扰信号流之外的第三干扰信号流的位的值为1的情况,确定第二ML度量,并计算最小值 基于第一ML度量和第二ML度量,从移动站(MS)接收的BW REQ消息的误差距离。
    • 4. 发明授权
    • Apparatus and method for signal transmission/reception in a communication system
    • 通信系统中信号发送/接收的装置和方法
    • US08117516B2
    • 2012-02-14
    • US11935259
    • 2007-11-05
    • Dong-Ho KimYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • Dong-Ho KimYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • H03M13/00
    • H03M13/1102H03M13/033H03M13/6393
    • A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.
    • 提供了一种用于在通信系统中发送信号的方法和装置。 根据低密度奇偶校验(LDPC)编码方案对信息向量进行编码,从而生成LDPC码字。 保留最小存活检查节点用于恢复LDPC码字中的穿孔节点。 从未预留的校验节点中选择具有最小成本函数的校验节点。 从连接到所选择的校验节点的变量节点中选择变量节点是未穿刺的并且具有最小的成本函数。 当所选择的变量节点未连接到保留的校验节点时,所选择的变量节点被打孔。 当所选变量节点连接到保留校验节点时,执行停止集检查。 当成功执行停止设置检查时,变量节点被打孔。 选中校验节点,直到不存在要删除的变量节点并对该变量节点进行删截。
    • 5. 发明授权
    • Method for puncturing a low density parity check code
    • 打孔低密度奇偶校验码的方法
    • US07734988B2
    • 2010-06-08
    • US11541749
    • 2006-10-02
    • Dong-Ho KimYung-Soo KimYe-Hoon LeeMyeon-Gyun ChoHyo-Yol ParkKeum-Chan WhangKwang-Soon KimJae-Won Kang
    • Dong-Ho KimYung-Soo KimYe-Hoon LeeMyeon-Gyun ChoHyo-Yol ParkKeum-Chan WhangKwang-Soon KimJae-Won Kang
    • H03M13/35
    • H03M13/1102H03M13/6306H03M13/6362
    • 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.
    • 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。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR SIGNAL TRANSMISSION/RECEPTION IN A COMMUNICATION SYSTEM
    • 通信系统中信号传输/接收的装置和方法
    • US20080109708A1
    • 2008-05-08
    • US11935259
    • 2007-11-05
    • Dong-Ho KIMYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • Dong-Ho KIMYung-Soo KimTak-Ki YuKeum-Chan WhangKwang-Soon KimHyo-Yol Park
    • H03M13/03
    • H03M13/1102H03M13/033H03M13/6393
    • A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.
    • 提供了一种用于在通信系统中发送信号的方法和装置。 根据低密度奇偶校验(LDPC)编码方案对信息向量进行编码,从而生成LDPC码字。 保留最小存活检查节点用于恢复LDPC码字中的穿孔节点。 从未预留的校验节点中选择具有最小成本函数的校验节点。 从连接到所选择的校验节点的变量节点中选择变量节点是未穿刺的并且具有最小的成本函数。 当所选择的变量节点未连接到保留的校验节点时,所选择的变量节点被打孔。 当所选变量节点连接到保留校验节点时,执行停止集检查。 当成功执行停止设置检查时,变量节点被打孔。 选中校验节点,直到不存在要删除的变量节点并对该变量节点进行删截。
    • 8. 发明申请
    • Method for puncturing a low density parity check code
    • 打孔低密度奇偶校验码的方法
    • US20070101243A1
    • 2007-05-03
    • US11541749
    • 2006-10-02
    • Dong-Ho KimYung-Soo KimYe-Hoon LeeMyeon-Gyun ChoHyo-Yol ParkKeum-Chan WhangKwang-Soon KimJae-Won Kang
    • Dong-Ho KimYung-Soo KimYe-Hoon LeeMyeon-Gyun ChoHyo-Yol ParkKeum-Chan WhangKwang-Soon KimJae-Won Kang
    • H03M13/03
    • H03M13/1102H03M13/6306H03M13/6362
    • 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.
    • 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。