专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07493547B2 Apparatus for coding low density parity check code and method thereof 有权
标题翻译：低密度奇偶校验码编码装置及其方法
公开(公告)号：US07493547B2
公开(公告)日：2009-02-17
申请号：US11154394
申请日：2005-06-15
申请人： Nam-Il Kim , In-Hwa Jung , Kyoung-Joon Lee , Young-Hoon Kim , Sang-Woo Nam , Seung-Chan Bang
发明人： Nam-Il Kim , In-Hwa Jung , Kyoung-Joon Lee , Young-Hoon Kim , Sang-Woo Nam , Seung-Chan Bang
IPC分类号： H03M13/00
CPC分类号： H03M13/11
摘要： The present invention provides a coding device of a low-density parity-check (LDPC) code for simply coding information data without generating a code generator matrix. The coding device forms a parity-check matrix having two sub-matrixes. At this time, the first sub-matrix is a random matrix or a structural matrix. The second sub-matrix is a structural matrix having two 1s in each column. Parity data is calculated by using the structural second matrix without calculating an inverse matrix of the second matrix when temporary data is generated by using the first sub-matrix with reference to the information data. Code data is generated from the parity data and the information data and is transmitted.
摘要翻译：本发明提供了一种用于简单地对信息数据进行编码而不生成代码生成矩阵的低密度奇偶校验（LDPC）码的编码装置。编码装置形成具有两个子矩阵的奇偶校验矩阵。此时，第一子矩阵是随机矩阵或结构矩阵。第二子矩阵是在每列中具有两个1的结构矩阵。当通过参考信息数据使用第一子矩阵生成临时数据时，通过使用结构第二矩阵而不计算第二矩阵的逆矩阵来计算奇偶校验数据。从奇偶校验数据和信息数据生成代码数据并发送。

2. 发明申请

US20060123314A1 Apparatus for coding low density parity check code and method thereof 有权
公开(公告)号：US20060123314A1
公开(公告)日：2006-06-08
申请号：US11154394
申请日：2005-06-15
申请人： Nam-Il Kim , In-Hwa Jung , Kyoung-Joon Lee , Young-Hoon Kim , Sang-Woo Nam , Seung-Chan Bang
发明人： Nam-Il Kim , In-Hwa Jung , Kyoung-Joon Lee , Young-Hoon Kim , Sang-Woo Nam , Seung-Chan Bang
IPC分类号： H03M13/00
CPC分类号： H03M13/11
摘要： The present invention provides a coding device of a low-density parity-check (LDPC) code for simply coding information data without generating a code generator matrix. The coding device forms a parity-check matrix having two sub-matrixes. At this time, the first sub-matrix is a random matrix or a structural matrix. The second sub-matrix is a structural matrix having two 1s in each column. Parity data is calculated by using the structural second matrix without calculating an inverse matrix of the second matrix when temporary data is generated by using the first sub-matrix with reference to the information data. Code data is generated from the parity data and the information data and is transmitted.

3. 发明申请

US20060120269A1 Transmitting apparatus of OFDM system and method thereof 失效
标题翻译： OFDM系统的发送装置及其方法
公开(公告)号：US20060120269A1
公开(公告)日：2006-06-08
申请号：US11193237
申请日：2005-07-28
申请人： Nam-Il Kim , In-Hwa Jung , Young-Hoon Kim , Sang-Woo Nam
发明人： Nam-Il Kim , In-Hwa Jung , Young-Hoon Kim , Sang-Woo Nam
IPC分类号： H04J11/00
CPC分类号： H04L27/2614 , H04L1/0065 , H04L1/0071 , H04L25/03866 , H04L27/2615
摘要： The present invention relates to a transmitter in an OFDM system for improving the PAPR, and a method thereof. According to the exemplary embodiment of the present invention, channel encoding is performed in order to correct a data transmission error of a radio channel, a predetermined bit of the channel encoded data is bit-inverted by using a mask bit or a mask bit sequence, and a PAPR of the signal is reduced. Accordingly, reduction of transmission efficiency which has been generated in block coding and DSI methods is not generated when the signal is transmitted because an additional bit is not required.
摘要翻译：本发明涉及用于改善PAPR的OFDM系统中的发射机及其方法。根据本发明的示例性实施例，为了校正无线电信道的数据传输错误，执行信道编码，通过使用掩码位或掩码位序列对通道编码数据的预定位进行位反转，信号的PAPR减小。因此，由于不需要额外的位，当发送信号时，不会产生在块编码和DSI方法中产生的传输效率的降低。

4. 发明授权

US07652978B2 Transmitting apparatus of OFDM system and method thereof 失效
标题翻译： OFDM系统的发送装置及其方法
公开(公告)号：US07652978B2
公开(公告)日：2010-01-26
申请号：US11193237
申请日：2005-07-28
申请人： Nam-Il Kim , In-Hwa Jung , Young-Hoon Kim , Sang-Woo Nam
发明人： Nam-Il Kim , In-Hwa Jung , Young-Hoon Kim , Sang-Woo Nam
IPC分类号： H04J11/00 , H04J15/001
CPC分类号： H04L27/2614 , H04L1/0065 , H04L1/0071 , H04L25/03866 , H04L27/2615
摘要： The present invention relates to a transmitter in an OFDM system for improving the PAPR, and a method thereof. According to the exemplary embodiment of the present invention, channel encoding is performed in order to correct a data transmission error of a radio channel, a predetermined bit of the channel encoded data is bit-inverted by using a mask bit or a mask bit sequence, and a PAPR of the signal is reduced. Accordingly, reduction of transmission efficiency which has been generated in block coding and DSI methods is not generated when the signal is transmitted because an additional bit is not required.
摘要翻译：本发明涉及用于改善PAPR的OFDM系统中的发射机及其方法。根据本发明的示例性实施例，为了校正无线电信道的数据传输错误，执行信道编码，通过使用掩码位或掩码位序列对通道编码数据的预定位进行位反转，信号的PAPR减小。因此，由于不需要额外的位，当发送信号时，不会产生在块编码和DSI方法中产生的传输效率的降低。

5. 发明申请

US20060126765A1 Apparatus and method for detecting timing error based on cyclic correlation 有权
公开(公告)号：US20060126765A1
公开(公告)日：2006-06-15
申请号：US11240546
申请日：2005-09-30
申请人： Eun-Jeong Shin , Nam-Il Kim , Young-Hoon Kim , Seung-Chan Bang , Sang-Woo Nam
发明人： Eun-Jeong Shin , Nam-Il Kim , Young-Hoon Kim , Seung-Chan Bang , Sang-Woo Nam
IPC分类号： H04L27/06
CPC分类号： H04J3/0608
摘要： Provided is an apparatus and method for detecting timing errors based on characteristics of cyclic correlation. The apparatus and method can detect the timing errors of many users by using the cyclic characteristics of a midamble code at a time and detects the timing errors based on the characteristics of cyclic correlation to reduce the time required for detecting the users and lower the complexity in terms of Hardware. The apparatus includes a detection section controller, a register, a midamble generator, a midamble shifter, an accumulator, an adder, a shift register and a timing error detector.

6. 发明授权

US07555034B2 Apparatus and method for detecting timing error based on cyclic correlation 有权
标题翻译：基于循环相关检测定时误差的装置和方法
公开(公告)号：US07555034B2
公开(公告)日：2009-06-30
申请号：US11240546
申请日：2005-09-30
申请人： Eun-Jeong Shin , Nam-Il Kim , Young-Hoon Kim , Seung-Chan Bang , Sang-Woo Nam
发明人： Eun-Jeong Shin , Nam-Il Kim , Young-Hoon Kim , Seung-Chan Bang , Sang-Woo Nam
IPC分类号： H04B1/00
CPC分类号： H04J3/0608
摘要： Provided is an apparatus and method for detecting timing errors based on characteristics of cyclic correlation. The apparatus and method can detect the timing errors of many users by using the cyclic characteristics of a midamble code at a time and detects the timing errors based on the characteristics of cyclic correlation to reduce the time required for detecting the users and lower the complexity in terms of Hardware. The apparatus includes a detection section controller, a register, a midamble generator, a midamble shifter, an accumulator, an adder, a shift register and a timing error detector.
摘要翻译：提供了一种基于循环相关特性来检测定时误差的装置和方法。该装置和方法可以通过一次使用中间码的循环特性来检测许多用户的定时误差，并且基于循环相关特性检测定时误差，以减少检测用户所需的时间并降低复杂度硬件条款。该装置包括检测部分控制器，寄存器，中间码发生器，中置码移位器，累加器，加法器，移位寄存器和定时误差检测器。

7. 发明申请

US20060126753A1 Apparatus and method for detecting space-time multi-user signal of base station having array antenna 有权
公开(公告)号：US20060126753A1
公开(公告)日：2006-06-15
申请号：US11284688
申请日：2005-11-21
申请人： Hye-Kyung Jwa , Kyung Park , Seung-Chan Bang , Young-Hoon Kim , Sang-Woo Nam
发明人： Hye-Kyung Jwa , Kyung Park , Seung-Chan Bang , Young-Hoon Kim , Sang-Woo Nam
IPC分类号： H04L1/02 , H04L27/06 , H04B1/10
CPC分类号： H04B7/0897 , H04B1/7103 , H04B1/71052 , H04L25/0204
摘要： An apparatus and method for detecting a space-time multi-user signal are disclosed. The apparatus includes: an RF/IF processing unit for converting received signals through an array antenna into digital baseband signals; a splitting unit for dividing the digital baseband signals into data signals and reference signals; a estimating unit for estimating a delay time information and a channel impulse response; a vector generating unit for receiving the reference signals and the delay time information of to thereby generate a beamforming weight vector; a matrix generating unit for receiving the channel impulse response and the beamforming weight vector to there by generate a system matrix; a filtering unit for receiving the data signals and the system matrix to multiply the system matrix to data per each antenna; a antenna combining unit for combining signals outputted from the filtering unit; and an interference cancelling unit for cancelling an interference signal.

8. 发明授权

US07620115B2 Space code block coding and spreading apparatus and method for transmission diversity and CDMA diversity transmitter and CDMA mobile station receiver using the same 有权
标题翻译：用于传输分集和CDMA分集发射机和CDMA移动台接收机的空间码块编码和扩展装置和方法
公开(公告)号：US07620115B2
公开(公告)日：2009-11-17
申请号：US11303846
申请日：2005-12-16
申请人： Il-Gyu Kim , Young-Hoon Kim , Seung-Chan Bang , Chan-Bok Jeong , Sang-Woo Nam
发明人： Il-Gyu Kim , Young-Hoon Kim , Seung-Chan Bang , Chan-Bok Jeong , Sang-Woo Nam
IPC分类号： H04B7/02
CPC分类号： H04L1/0631 , H04B1/707 , H04J13/12 , H04L1/0643
摘要： A space code block coding and spreading apparatus for transmission diversity, a Code Division Multiple Access (CDMA) diversity transmitter using it, and a CDMA mobile station receiver for receiving a transmission diversity signal, which are capable of improving the performance of system in wireless channel environments by allowing a transmission diversity to be made within one symbol interval in a CDMA communication system. The apparatus includes an encoder for generating a predetermined number of different transmission data with respect to a plurality of modulation symbols inputted during one modulation symbol interval, an orthogonal code generator for producing orthogonal codes, a spreader for spreading each of the transmission data generated from the encoder using the orthogonal codes generated from the orthogonal code generator, and a combining unit for combining the transmission data spread at the spreader to provide combined data for each transmission antenna path.
摘要翻译：用于发射分集的空间码块编码和扩展装置，使用它的码分多址（CDMA）分集发射机和用于接收发射分集信号的CDMA移动台接收机，其能够改善无线信道中的系统的性能在CDMA通信系统中允许在一个符号间隔内进行发送分集的环境。该装置包括：编码器，用于相对于在一个调制符号间隔期间输入的多个调制符号产生预定数量的不同传输数据，用于产生正交码的正交码发生器，用于扩展从使用从正交码发生器产生的正交码的编码器，以及组合单元，用于组合在扩展器上扩展的发送数据，以提供每个发送天线路径的组合数据。

9. 发明申请

US20060280229A1 Space code block coding and spreading apparatus and method for transmission diversity and CDMA diversity transmitter and CDMA mobile station receiver using the same 有权
标题翻译：用于传输分集和CDMA分集发射机和CDMA移动台接收机的空间码块编码和扩展装置和方法
公开(公告)号：US20060280229A1
公开(公告)日：2006-12-14
申请号：US11303846
申请日：2005-12-16
申请人： Il-Gyu Kim , Young-Hoon Kim , Seung-Chan Bang , Chan-Bok Jeong , Sang-Woo Nam
发明人： Il-Gyu Kim , Young-Hoon Kim , Seung-Chan Bang , Chan-Bok Jeong , Sang-Woo Nam
IPC分类号： H04B1/00 , H04L1/02
CPC分类号： H04L1/0631 , H04B1/707 , H04J13/12 , H04L1/0643
摘要： Provided are a space code block coding and spreading apparatus and method for transmission diversity, a Code Division Multiple Access (CDMA) diversity transmitter using it, and a CDMA mobile station receiver for receiving a transmission diversity signal, which are capable of improving the performance of system in wireless channel environments by allowing a transmission diversity to be made within one symbol interval in a CDMA communication system. The inventive space code block coding and spreading apparatus for transmission diversity in a CDMA communication system, comprises an encoder for generating a predetermined number of different transmission data with respect to a plurality of modulation symbols inputted during one modulation symbol interval, an orthogonal code generator for producing orthogonal codes, a spreader for spreading each of the transmission data generated from the encoder using the orthogonal codes generated from the orthogonal code generator, and a combining unit for combining the transmission data spread at the spreader to provide combined data for each transmission antenna path so that a transmission diversity is made within one modulation symbol interval.
摘要翻译：提供了一种用于发送分集的空间码块编码和扩展装置和方法，使用它的码分多址（CDMA）分集发射机，以及用于接收发射分集信号的CDMA移动台接收机，其能够提高通过在CDMA通信系统中允许在一个符号间隔内进行发送分集，在无线信道环境中进行。用于CDMA通信系统中的发送分集的本发明空间编码块编码和扩展装置包括：编码器，用于相对于在一个调制符号间隔期间输入的多个调制符号产生预定数量的不同传输数据;正交码发生器，产生正交码;扩展器，用于使用从正交码发生器产生的正交码扩展从编码器生成的每个发送数据;以及组合单元，用于组合在扩展器上扩展的发送数据，以提供每个发送天线路径的组合数据使得在一个调制符号间隔内进行发送分集。

10. 发明授权

US07623563B2 Apparatus and method for detecting space-time multi-user signal of base station having array antenna 有权
标题翻译：用于检测具有阵列天线的基站的时空多用户信号的装置和方法
公开(公告)号：US07623563B2
公开(公告)日：2009-11-24
申请号：US11284688
申请日：2005-11-21
申请人： Hye-Kyung Jwa , Kyung Park , Seung-Chan Bang , Young-Hoon Kim , Sang-Woo Nam
发明人： Hye-Kyung Jwa , Kyung Park , Seung-Chan Bang , Young-Hoon Kim , Sang-Woo Nam
IPC分类号： H04B1/00
CPC分类号： H04B7/0897 , H04B1/7103 , H04B1/71052 , H04L25/0204
摘要： An apparatus and method for detecting a space-time multi-user signal are disclosed. The apparatus includes: an RF/IF processing unit for converting received signals through an array antenna into digital baseband signals; a splitting unit for dividing the digital baseband signals into data signals and reference signals; a estimating unit for estimating a delay time information and a channel impulse response; a vector generating unit for receiving the reference signals and the delay time information of to thereby generate a beamforming weight vector; a matrix generating unit for receiving the channel impulse response and the beamforming weight vector to there by generate a system matrix; a filtering unit for receiving the data signals and the system matrix to multiply the system matrix to data per each antenna; a antenna combining unit for combining signals outputted from the filtering unit; and an interference cancelling unit for cancelling an interference signal.
摘要翻译：公开了一种用于检测时空多用户信号的装置和方法。该装置包括：RF / IF处理单元，用于将通过阵列天线的接收信号转换为数字基带信号; 分割单元，用于将数字基带信号分割成数据信号和参考信号; 用于估计延迟时间信息和信道脉冲响应的估计单元; 矢量生成单元，用于接收参考信号和延迟时间信息，从而生成波束形成权重向量; 矩阵生成单元，用于通过生成系统矩阵来接收信道脉冲响应和波束成形权重向量到达那里; 用于接收数据信号和系统矩阵的滤波单元，以将系统矩阵乘以每个天线的数据; 天线组合单元，用于组合从所述滤波单元输出的信号; 以及用于消除干扰信号的干扰消除单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式