公开(公告)号：KR1020090064290A

公开(公告)日：2009-06-18

申请号：KR1020080093769

申请日：2008-09-24

Applicant: 한국전자통신연구원

Inventor： 김판수 ,  이인기 ,  장대익 ,  이호진 ,  김남식 ,  송봉섭 ,  박현철

IPC: H03M13/27 ,  H04L1/18

CPC classification number: H04L1/08 ,  H03M13/005 ,  H03M13/2771 ,  H04L1/0041 ,  H04L1/0076

Abstract: An apparatus and a method for transmitting and receiving data packets repeatedly are provided to prevent signal attenuation and a fading phenomenon in a high speed mobile environment by additionally transmitting a parity bit with different punching pattern repeatedly and channel-encoding and transmitting the same information bit stream repeatedly. A dual data generator(200) redundantly produces the same information stream every information bit stream to be transmitted. A dual channel encoder(202) divides redundantly produced information bit streams into a plurality of information bits. The dual channel encoder generates the coded data packet including a plurality of parity bits according to different punching patterns for divided information bit. A dual interleaver(204) interleaves the coded data packets generated in the dual channel encoder. A transmitter(205) successively transmits the generated coded data packets.

Abstract translation: 提供重复发送和接收数据分组的装置和方法，通过重复发送具有不同冲压模式的奇偶校验位和信道编码并发送相同的信息比特流来防止高速移动环境中的信号衰减和衰落现象 反复。 双数据生成器（200）冗余地产生要发送的每个信息比特流的相同信息流。 双通道编码器（202）将冗余产生的信息比特流分成多个信息比特。 双通道编码器根据用于划分的信息位的不同冲压模式生成包括多个奇偶校验位的编码数据分组。 双交织器（204）交织在双信道编码器中生成的编码数据分组。 发射机（205）连续发送所生成的编码数据分组。

公开(公告)号：KR100933053B1

公开(公告)日：2009-12-21

申请号：KR1020070070562

申请日：2007-07-13

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 송영석 ,  권동승 ,  이유성 ,  김남식 ,  박현철

IPC: H04B7/08

Abstract: A receiver of an MIMO communication system and a signal detection method using the same are provided to minimize the performance degradation of a system as reducing the complexity. A signal detector(100) processes data symbols which are transmitted from a transmitter and received through the M number of antennas as signals to detect a parallel signal string. A log likelihood ratio calculating unit(200) receives the parallel signal string from the signal detector to extract a log likelihood ratio. A soft decision symbol extractor(300) calculates the mean value of the symbols which are a parallel signal by using the log likelihood ratio calculated by the log likelihood ratio calculating unit. A parallel to serial convertor(400) converts and outputs the parallel signal extracted from the log likelihood ratio calculating unit into a serial signal. A deinterleaver(500) receives the serial signal outputted from the parallel to serial convertor, and then performs the deinterleaving according to a pre-defined rule to change the locations of bits of a modulated signal in the original order.

Abstract translation: 提供了一种MIMO通信系统的接收器以及使用该接收器的信号检测方法，以便降低系统的性能退化以降低复杂度。 信号检测器（100）处理从发送器发送并通过M个天线接收的数据符号作为信号以检测并行信号串。 对数似然比计算单元（200）从信号检测器接收并行信号串以提取对数似然比。 软判定码元提取器（300）通过使用由对数似然比计算单元计算的对数似然比来计算作为并行信号的码元的平均值。 并串转换器（400）将从对数似然比计算单元提取的并行信号转换并输出为串行信号。 解交织器（500）接收并行到串行转换器输出的串行信号，然后根据预定规则执行解交织，以按照原始顺序改变调制信号的位的位置。

公开(公告)号：KR1020090007003A

公开(公告)日：2009-01-16

申请号：KR1020070070562

申请日：2007-07-13

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 송영석 ,  권동승 ,  이유성 ,  김남식 ,  박현철

IPC: H04B7/08

CPC classification number: H04B7/0854 ,  H04B7/0417 ,  H04L1/0046 ,  H04L25/0204

Abstract: A receiver of an MIMO communication system and a signal detection method using the same are provided to minimize the performance degradation of a system as reducing the complexity. A signal detector(100) processes data symbols which are transmitted from a transmitter and received through the M number of antennas as signals to detect a parallel signal string. A log likelihood ratio calculating unit(200) receives the parallel signal string from the signal detector to extract a log likelihood ratio. A soft decision symbol extractor(300) calculates the mean value of the symbols which are a parallel signal by using the log likelihood ratio calculated by the log likelihood ratio calculating unit. A parallel to serial convertor(400) converts and outputs the parallel signal extracted from the log likelihood ratio calculating unit into a serial signal. A deinterleaver(500) receives the serial signal outputted from the parallel to serial convertor, and then performs the deinterleaving according to a pre-defined rule to change the locations of bits of a modulated signal in the original order.

Abstract translation: 提供MIMO通信系统的接收机和使用该MIMO通信系统的信号检测方法，以最小化系统的降低复杂度的性能下降。 信号检测器（100）处理从发送器发送并通过M个天线接收的数据符号作为信号以检测并行信号串。 对数似然比计算单元（200）从信号检测器接收并行信号串以提取对数似然比。 软决策符号提取器（300）通过使用由对数似然比计算单元计算的对数似然比来计算作为并行信号的符号的平均值。 并行串行转换器（400）将从对数似然比计算单元提取的并行信号转换并输出为串行信号。 解交织器（500）接收从并行到串行转换器输出的串行信号，然后根据预定义的规则执行解交织以改变原始顺序的调制信号的位的位置。