公开(公告)号：US20090154609A1

公开(公告)日：2009-06-18

申请号：US12182447

申请日：2008-07-30

申请人： Pansoo KIM ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

发明人： Pansoo KIM ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L7/042 ,  H04L27/2656 ,  H04L27/2675

摘要： Provided is a correlation scheme selecting apparatus and method that can acquire initial synchronization efficiently by calculating frequency error criterion threshold between correlation schemes and selecting a correlation scheme for each region when a correlation value is calculated for initial sync in a communication system with carrier frequency errors. The method for selecting a correlation scheme based on a carrier frequency error includes: calculating mis-detection probability values based on a normalized frequency offset for each correlation scheme; determining as a frequency-error criterion threshold a crossing point of graphs of the calculated mis-detection probability values for each correlation scheme; and selecting a correlation scheme based on the determined frequency-error criterion threshold.

摘要翻译： 提供了一种相关方案选择装置和方法，其可以通过计算相关方案之间的频率误差标准阈值并且在具有载波频率误差的通信系统中为初始同步计算相关值时选择每个区域的相关方案来有效地获取初始同步。 基于载波频率误差选择相关方案的方法包括：基于每个相关方案的归一化频率偏移来计算误检测概率值; 将每个相关方案的计算的错误检测概率值的曲线图的交叉点确定为频率 - 误差标准阈值; 以及基于所确定的频率 - 误差准则阈值来选择相关方案。

公开(公告)号：US08139691B2

公开(公告)日：2012-03-20

申请号：US12182447

申请日：2008-07-30

申请人： Pansoo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

发明人： Pansoo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

IPC分类号： H03D1/00

CPC分类号： H04L27/2657 ,  H04L7/042 ,  H04L27/2656 ,  H04L27/2675

摘要： Provided is a correlation scheme selecting apparatus and method that can acquire initial synchronization efficiently by calculating frequency error criterion threshold between correlation schemes and selecting a correlation scheme for each region when a correlation value is calculated for initial sync in a communication system with carrier frequency errors. The method for selecting a correlation scheme based on a carrier frequency error includes: calculating mis-detection probability values based on a normalized frequency offset for each correlation scheme; determining as a frequency-error criterion threshold a crossing point of graphs of the calculated mis-detection probability values for each correlation scheme; and selecting a correlation scheme based on the determined frequency-error criterion threshold.

摘要翻译： 提供了一种相关方案选择装置和方法，其可以通过计算相关方案之间的频率误差标准阈值并且在具有载波频率误差的通信系统中为初始同步计算相关值时选择每个区域的相关方案来有效地获取初始同步。 基于载波频率误差选择相关方案的方法包括：基于每个相关方案的归一化频率偏移来计算误检测概率值; 将每个相关方案的计算的错误检测概率值的曲线图的交叉点确定为频率 - 误差标准阈值; 以及基于所确定的频率 - 误差准则阈值来选择相关方案。

公开(公告)号：US07587653B2

公开(公告)日：2009-09-08

申请号：US11442363

申请日：2006-05-26

申请人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

发明人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

IPC分类号： H03M13/05

CPC分类号： H04L1/0045 ,  H03M13/136 ,  H03M13/15 ,  H03M13/6561 ,  H04H40/90 ,  H04L1/0057 ,  H04L1/0072 ,  H04L1/08

摘要： Provided is a decoding method for detecting Physical Layer Signaling Codes (PLSCs) from frames of a satellite broadcasting system. The method includes: a) acquiring a summation vector and a subtraction vector from an inputted symbol vector; b) performing parallel Reed-Muller (32,6) decoding onto the summation and subtraction vectors based on a Hadamard matrix and estimating message bits of the summation and subtraction vectors; c) performing PLSC coding and modulation onto the message bits of the summation and subtraction vectors; d) calculating a first difference between symbols of the received symbol vector and the summation vector symbols, and a second difference between the symbols of the received symbol vector and the subtraction vector symbols; and e) when the first difference is smaller than the second difference, determining a Reed-Muller codeword is repeated, or when the first difference is larger than the second difference, determining that the Reed-Muller codeword is inverted.

摘要翻译： 提供了一种从卫星广播系统的帧中检测物理层信令码（PLSC）的解码方法。 该方法包括：a）从输入的符号向量获取求和向量和减法向量; b）基于Hadamard矩阵对求和和减法向量执行并行Reed-Muller（32,6）解码并估计求和和减法向量的消息比特; c）对求和和减法向量的消息比特执行PLSC编码和调制; d）计算接收的符号向量和求和向量符号的符号之间的第一差值，以及接收到的符号向量和减法向量符号的符号之间的第二差值; 以及e）当第一差小于第二差时，重复确定里德 - 穆勒码字，或者当第一差大于第二差时，确定里德 - 穆勒码字被反转。

公开(公告)号：US07308064B2

公开(公告)日：2007-12-11

申请号：US11442447

申请日：2006-05-26

申请人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Wonjin Sung ,  Deokchang Kang ,  Seokheon Kang

发明人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Wonjin Sung ,  Deokchang Kang ,  Seokheon Kang

IPC分类号： H04L7/00

CPC分类号： H04J3/0608 ,  H04B7/2125

摘要： Provided is a frame synchronization method for synchronizing frames with pilot blocks added thereto based on differential correlation information in a satellite communication system. The method can acquire a highly reliable frame synchronization estimation value by achieving a multi-step threshold value test using pilot blocks after a correlation analysis and a threshold test based on a sync signal in order to resolve the problem of a low signal-to-noise ratio and a large frequency error and acquire highly reliable frame synchronization performance, and can overcome distortion of a correlation analysis value caused by the frequency error by analyzing correlation based on differential information. The method includes the steps of: a) performing correlation analysis and a threshold test by using a sync word; and b) performing a multi-step correlation value test by using the pilot blocks added to the frames prior to the sync word.

摘要翻译： 提供了一种帧同步方法，用于基于卫星通信系统中的差分相关信息来将帧与其添加的导频块同步。 该方法可以通过在相关分析和基于同步信号的阈值测试之后使用导频块实现多步阈值测试来获得高度可靠的帧同步估计值，以便解决低信噪比的问题 比例大，频率误差大，获得高可靠性的帧同步性能，可以通过分析基于差分信息的相关性来克服由频率误差引起的相关分析值的失真。 该方法包括以下步骤：a）通过使用同步字执行相关分析和阈值测试; 以及b）通过使用添加到同步字之前的帧的导频块来执行多步相关值测试。

公开(公告)号：US20070150796A1

公开(公告)日：2007-06-28

申请号：US11442363

申请日：2006-05-26

申请人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

发明人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

IPC分类号： H03M13/00

CPC分类号： H04L1/0045 ,  H03M13/136 ,  H03M13/15 ,  H03M13/6561 ,  H04H40/90 ,  H04L1/0057 ,  H04L1/0072 ,  H04L1/08

摘要： Provided is a decoding method for detecting Physical Layer Signaling Codes (PLSCs) from frames of a satellite broadcasting system. The method includes: a) acquiring a summation vector and a subtraction vector from an inputted symbol vector; b) performing parallel Reed-Muller (32,6) decoding onto the summation and subtraction vectors based on a Hadamard matrix and estimating message bits of the summation and subtraction vectors; c) performing PLSC coding and modulation onto the message bits of the summation and subtraction vectors; d) calculating a first difference between symbols of the received symbol vector and the summation vector symbols, and a second difference between the symbols of the received symbol vector and the subtraction vector symbols; and e) when the first difference is smaller than the second difference, determining a Reed-Muller codeword is repeated, or when the first difference is larger than the second difference, determining that the Reed-Muller codeword is inverted.

摘要翻译： 提供了一种从卫星广播系统的帧中检测物理层信令码（PLSC）的解码方法。 该方法包括：a）从输入的符号向量获取求和向量和减法向量; b）基于Hadamard矩阵对求和和减法向量执行并行Reed-Muller（32,6）解码并估计求和和减法向量的消息比特; c）对求和和减法向量的消息比特执行PLSC编码和调制; d）计算接收的符号向量和求和向量符号的符号之间的第一差值，以及接收到的符号向量和减法向量符号的符号之间的第二差值; 以及e）当第一差小于第二差时，重复确定里德 - 穆勒码字，或者当第一差大于第二差时，确定里德 - 穆勒码字被反转。

公开(公告)号：US20070133727A1

公开(公告)日：2007-06-14

申请号：US11442447

申请日：2006-05-26

申请人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Wonjin Sung ,  Deokchang Kang ,  Seokheon Kang

发明人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Wonjin Sung ,  Deokchang Kang ,  Seokheon Kang

IPC分类号： H04L7/00 ,  H04B1/00 ,  H04J3/06

CPC分类号： H04J3/0608 ,  H04B7/2125

摘要： Provided is a frame synchronization method for synchronizing frames with pilot blocks added thereto based on differential correlation information in a satellite communication system. The method can acquire a highly reliable frame synchronization estimation value by achieving a multi-step threshold value test using pilot blocks after a correlation analysis and a threshold test based on a sync signal in order to resolve the problem of a low signal-to-noise ratio and a large frequency error and acquire highly reliable frame synchronization performance, and can overcome distortion of a correlation analysis value caused by the frequency error by analyzing correlation based on differential information. The method includes the steps of: a) performing correlation analysis and a threshold test by using a sync word; and b) performing a multi-step correlation value test by using the pilot blocks added to the frames prior to the sync word.

公开(公告)号：US07995578B2

公开(公告)日：2011-08-09

申请号：US12334043

申请日：2008-12-12

申请人： Pansoo Kim ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

发明人： Pansoo Kim ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

IPC分类号： H04J3/16

CPC分类号： H04L1/0071 ,  H04L1/0013 ,  H04L1/0068 ,  H04L1/08

摘要： Provided are repetition apparatus and method for repeatedly transmitting and receiving a data packet using different puncturing patterns to overcome signal attenuation and fading in a high speed mobile environment by repeatedly transmitting the duplicated information bit sequences with parity bits having a different puncturing pattern after channel-encoding the duplicated information bit. The repetition apparatus for repeatedly transmitting a data packet, includes a dual data generator for generating duplicated information bit sequences identical to each of information bit sequences to transmit, a channel encoder for dividing each of the duplicated information bit sequences into a plurality of information bits, and generating coded data packets alternately having a plurality of parity bits according to different puncturing patterns for each of the divided information bits, and a transmitter for transmitting the generated coded data packets sequentially.

摘要翻译： 提供了一种重复装置和方法，用于使用不同的打孔模式重复地发送和接收数据包，以通过在频道编码之后重复地发送具有不同打孔图案的奇偶校验位的复制信息比特序列来克服高速移动环境中的信号衰减和衰落 重复的信息位。 用于重复发送数据分组的重复装置包括：双数据产生器，用于产生与要发送的每个信息比特序列相同的重复信息比特序列，用于将每个复制信息比特序列分成多个信息比特的信道编码器， 以及根据用于每个分割的信息比特的不同的删截图案，交替地生成具有多个奇偶校验位的编码数据分组，以及发送器，用于顺序地发送所生成的编码数据分组。

公开(公告)号：US20090154458A1

公开(公告)日：2009-06-18

申请号：US12334043

申请日：2008-12-12

申请人： Pansoo KIM ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

发明人： Pansoo KIM ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

IPC分类号： H04L12/56

CPC分类号： H04L1/0071 ,  H04L1/0013 ,  H04L1/0068 ,  H04L1/08

摘要： Provided are repetition apparatus and method for repeatedly transmitting and receiving a data packet using different puncturing patterns to overcome signal attenuation and fading in a high speed mobile environment by repeatedly transmitting the duplicated information bit sequences with parity bits having a different puncturing pattern after channel-encoding the duplicated information bit. The repetition apparatus for repeatedly transmitting a data packet, includes a dual data generator for generating duplicated information bit sequences identical to each of information bit sequences to transmit, a channel encoder for dividing each of the duplicated information bit sequences into a plurality of information bits, and generating coded data packets alternately having a plurality of parity bits according to different puncturing patterns for each of the divided information bits, and a transmitter for transmitting the generated coded data packets sequentially.

摘要翻译： 提供了一种重复装置和方法，用于使用不同的打孔模式重复地发送和接收数据分组，以通过在频道编码之后重复地发送具有不同打孔图案的奇偶校验位的复制信息比特序列来克服高速移动环境中的信号衰减和衰落 重复的信息位。 用于重复发送数据分组的重复装置包括：双数据产生器，用于产生与要发送的每个信息比特序列相同的重复信息比特序列，用于将每个复制信息比特序列分成多个信息比特的信道编码器， 以及根据用于每个分割的信息比特的不同的删截图案，交替地生成具有多个奇偶校验位的编码数据分组，以及发送器，用于顺序地发送所生成的编码数据分组。

公开(公告)号：US07978732B2

公开(公告)日：2011-07-12

申请号：US12094325

申请日：2006-12-11

申请人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

发明人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

IPC分类号： H04J3/16

CPC分类号： H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0038 ,  H04L2001/0093 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/2404 ,  H04N21/4382

摘要： Provided are an apparatus and method for deciding a transmission format using a variable frame length and a decoding method using the same. The apparatus for deciding the transmission format using the variable frame length includes: a frame synchronization acquiring unit for acquiring a frame synchronization of a received transmission frame; a correlation analyzing unit for performing a correlation analysis with respect to the transmission frame whose synchronization is acquired, considering frame lengths of respective frame structures; and a transmission frame structure deciding unit for deciding the structure of the received transmission frame using the analyzed correlation. Accordingly, a physical layer signaling code (PLSC) demodulation and decoding performance can be enhanced by determining the structure of the transmitted frame without carrying out a PLSC decoding in such a state that a frequency synchronization is not acquired.

摘要翻译： 提供了一种使用可变帧长度来决定传输格式的装置和方法以及使用其的解码方法。 用于使用可变帧长度确定传输格式的装置包括：帧同步获取单元，用于获取接收到的传输帧的帧同步; 相关分析单元，考虑相应帧结构的帧长度，执行相对于获取同步的传输帧的相关分析; 以及传输帧结构决定单元，用于使用所分析的相关来确定所接收的传输帧的结构。 因此，通过在不获取频率同步的状态下确定发送帧的结构而不执行PLSC解码，可以增强物理层信令码（PLSC）解调和解码性能。

公开(公告)号：US20080285591A1

公开(公告)日：2008-11-20

申请号：US12094325

申请日：2006-12-11

申请人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

发明人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

IPC分类号： H04L29/02

CPC分类号： H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0038 ,  H04L2001/0093 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/2404 ,  H04N21/4382

摘要： Provided are an apparatus and method for deciding a transmission format using a variable frame length and a decoding method using the same. The apparatus for deciding the transmission format using the variable frame length includes: a frame synchronization acquiring unit for acquiring a frame synchronization of a received transmission frame; a correlation analyzing unit for performing a correlation analysis with respect to the transmission frame whose synchronization is acquired, considering frame lengths of respective frame structures; and a transmission frame structure deciding unit for deciding the structure of the received transmission frame using the analyzed correlation. Accordingly, a physical layer signaling code (PLSC) demodulation and decoding performance can be enhanced by determining the structure of the transmitted frame without carrying out a PLSC decoding in such a state that a frequency synchronization is not acquired.

摘要翻译： 提供了一种使用可变帧长度来决定传输格式的装置和方法以及使用其的解码方法。 用于使用可变帧长度确定传输格式的装置包括：帧同步获取单元，用于获取接收到的传输帧的帧同步; 相关分析单元，考虑相应帧结构的帧长度，执行相对于获取同步的传输帧的相关分析; 以及传输帧结构决定单元，用于使用所分析的相关来确定所接收的传输帧的结构。 因此，通过在不获取频率同步的状态下确定发送帧的结构而不执行PLSC解码，可以增强物理层信令码（PLSC）解调和解码性能。