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1. 发明授权

US07382718B2 Transmitting and receiving method for reducing distortion caused by a time-varying channel in an orthogonal frequency division multiplex system 有权
标题翻译：用于减少由正交频分复用系统中的时变信道引起的失真的发送和接收方法
公开(公告)号：US07382718B2
公开(公告)日：2008-06-03
申请号：US10334354
申请日：2002-12-31
申请人： Kyung-Hi Chang , Yun-Hee Kim , Yong-Soo Cho , Kyung-Won Park
发明人： Kyung-Hi Chang , Yun-Hee Kim , Yong-Soo Cho , Kyung-Won Park
IPC分类号： H04L5/04 , H04L27/00 , H04J11/00 , G06F15/00
CPC分类号： H04W52/16 , H04L1/0618 , H04L25/0204 , H04L27/2647 , H04W52/42
摘要： Disclosed is a transmitting and receiving method for reducing a time-varying channel distortion in an orthogonal frequency division multiplex (OFDM) system. In the present invention, the transmitter defines M sub-channels in one data group, mathematically analyzes a change of channel for each path causing a time-varying channel distortion in a high-speed mobile environment by approximation, calculates a weight value based on the mathematical analysis and assigns the calculated weight value to transmit data of each sub-channel. Subsequently, the receiver combines the signals of these M sub-channels and demodulates the combined signals. Accordingly, the present invention greatly reduces a distortion caused by the time-varying channel to improve a bit error rate and a channel estimation performance.
摘要翻译：公开了一种用于减少正交频分复用（OFDM）系统中的时变信道失真的发送和接收方法。在本发明中，发射机在一个数据组中定义M个子信道，通过近似来数学地分析导致高速移动环境中的时变信道失真的每个路径的信道变化，基于数学分析，并分配计算的权重值以发送每个子频道的数据。随后，接收机组合这些M个子信道的信号并解调组合的信号。因此，本发明大大减少了由时变信道引起的失真，以提高误码率和信道估计性能。

2. 发明授权

US07123887B2 Adaptive transmission and receiving method and device in wireless communication system with multiple antennas 有权
公开(公告)号：US07123887B2
公开(公告)日：2006-10-17
申请号：US10723528
申请日：2003-11-25
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04B1/02
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.

3. 发明授权

US08140029B2 Adaptive transmission and receiving method and device in wireless communication system with multiple antennas 有权
标题翻译：具有多个天线的无线通信系统中的自适应传输和接收方法及装置
公开(公告)号：US08140029B2
公开(公告)日：2012-03-20
申请号：US12874629
申请日：2010-09-02
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04B1/04 , H04B1/00 , H04B7/00 , H04B7/02 , H04L1/02
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
摘要翻译：公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。接收机天线/符号解调并对接收的数据进行通道解码。

4. 发明申请

US20110059700A1 ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS 有权
标题翻译：具有多个天线的无线通信系统中的自适应传输和接收方法及装置
公开(公告)号：US20110059700A1
公开(公告)日：2011-03-10
申请号：US12874629
申请日：2010-09-02
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04B7/00
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
摘要翻译：公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。接收机天线/符号解调并对接收的数据进行通道解码。

5. 发明授权

US08428524B2 Adaptive transmission and receiving method and device in wireless communication system with multiple antennas 有权
标题翻译：具有多个天线的无线通信系统中的自适应传输和接收方法及装置
公开(公告)号：US08428524B2
公开(公告)日：2013-04-23
申请号：US13364991
申请日：2012-02-02
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04B1/04 , H04B1/00 , H04B7/00 , H04B7/02 , H04L1/02
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
摘要翻译：公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。接收机天线/符号解调并对接收的数据进行通道解码。

6. 发明申请

US20120127886A1 ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS 有权
标题翻译：具有多个天线的无线通信系统中的自适应传输和接收方法及装置
公开(公告)号：US20120127886A1
公开(公告)日：2012-05-24
申请号：US13364991
申请日：2012-02-02
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04W24/00 , H04W72/04
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
摘要翻译：公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。接收机天线/符号解调并对接收的数据进行通道解码。

7. 再颁专利

USRE42098E1 Adaptive transmission and receiving method and device in wireless communication system with multiple antennas 有权
标题翻译：具有多个天线的无线通信系统中的自适应传输和接收方法及装置
公开(公告)号：USRE42098E1
公开(公告)日：2011-02-01
申请号：US12253436
申请日：2008-10-17
申请人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
发明人： Yun-Hee Kim , Kwang-Soon Kim , Sang-Hyun Lee , Kyu-Jong Hwang , Kyung-Hi Chang
IPC分类号： H04B1/04 , H04B1/00 , H04B7/00 , H04B7/02 , H04L1/02
CPC分类号： H04L1/0003 , H04B7/0417 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , Y02D70/1244 , Y02D70/142 , Y02D70/444
摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.
摘要翻译：公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。接收机天线/符号解调并对接收的数据进行通道解码。

8. 发明授权

US07372927B2 Digital filter for software-defined radio system, digital intermediate frequency signal processing apparatus having the digital filter, and method thereof 有权
标题翻译：用于软件定义无线电系统的数字滤波器，具有数字滤波器的数字中频信号处理装置及其方法
公开(公告)号：US07372927B2
公开(公告)日：2008-05-13
申请号：US10606822
申请日：2003-06-26
申请人： Sang-Hyun Lee , Kwang-Soon Kim , Yun-Hee Kim , Kyung-Hi Chang
发明人： Sang-Hyun Lee , Kwang-Soon Kim , Yun-Hee Kim , Kyung-Hi Chang
IPC分类号： H04B1/10
CPC分类号： H04B1/0007 , H04B1/0003 , H04B1/406 , H04L27/0008
摘要： Disclosed is a receiver digital filter for a digital IF signal processor suitable for the specification of each communication standard in a communication system that supports at least one communication standard. The filter for each standard is constructed as one block, and includes a block for externally implementing the constructed block. The coefficient of the digital filter constructed in one block is implemented with an external input or an internal filter coefficient calculator by a basic filter building block. In this manner, the common resources required in the digital filter used in each communication standard are shared, and only the additionally required resources are selectively implemented. Since the shared resources are calculated by dynamic programming, a considerably smaller number of additional resources are required.
摘要翻译：公开了一种用于数字IF信号处理器的接收机数字滤波器，其适用于支持至少一个通信标准的通信系统中的每个通信标准的规范。每个标准的滤波器被构造为一个块，并且包括用于外部实现构造块的块。在一个块中构造的数字滤波器的系数由基本滤波器构建块的外部输入或内部滤波器系数计算器实现。以这种方式，在每个通信标准中使用的数字滤波器中所需的共同资源被共享，并且仅选择性地实现附加所需的资源。由于共享资源是通过动态规划计算的，所以需要相当少的额外资源。

9. 发明授权

US07178081B2 Simplified message-passing decoder for low-density parity-check codes 有权
标题翻译：用于低密度奇偶校验码的简化消息传递解码器
公开(公告)号：US07178081B2
公开(公告)日：2007-02-13
申请号：US10696897
申请日：2003-10-29
申请人： Sang-Hyun Lee , Yun-Hee Kim , Kwang-Soon Kim , Kyung-Hi Chang
发明人： Sang-Hyun Lee , Yun-Hee Kim , Kwang-Soon Kim , Kyung-Hi Chang
IPC分类号： H03M13/00
CPC分类号： H04L1/0057 , H03M13/1117 , H04L1/0045
摘要： Disclosed is an implementation method for simplifying a complicated message-passing function in a decoder for decoding block codes encoded with low-density parity-check (LDPC) codes and only using a summator and a shifter to simplify the hardware structure of the decoder, in which method the input interval of the message-passing function for binary representation of a message input is divided and the respective divided intervals are linearized to allow the calculation of the output of the message-passing function without using a memory. Based on the fact that the message-passing function is similar in structure to an exponential function, the linearized intervals are set to make the maximum value expressible in each digit of the binary representation as the boundary of the intervals.
摘要翻译：公开了一种用于简化解码器中复杂的消息传递功能的实现方法，用于解码用低密度奇偶校验（LDPC）码编码的块码，并且仅使用求和器和移位器来简化解码器的硬件结构，该方法对消息输入的二进制表示的消息传递函数的输入间隔进行划分，并将各个划分的间隔线性化，以允许计算消息传递函数的输出而不使用存储器。基于消息传递函数在结构上与指数函数相似的事实，线性化间隔被设置为使二进制表示的每个数字中的最大值可表示为间隔的边界。

10. 发明申请

US20050032480A1 Digital filter for software-defined radio system, digital intermediate frequency signal processing apparatus having the digital filter, and method thereof 有权
标题翻译：用于软件定义无线电系统的数字滤波器，具有数字滤波器的数字中频信号处理装置及其方法
公开(公告)号：US20050032480A1
公开(公告)日：2005-02-10
申请号：US10606822
申请日：2003-06-26
申请人： Sang-Hyun Lee , Kwang-Soon Kim , Yun-Hee Kim , Kyung-Hi Chang
发明人： Sang-Hyun Lee , Kwang-Soon Kim , Yun-Hee Kim , Kyung-Hi Chang
IPC分类号： H04B1/40 , H04L27/00
CPC分类号： H04B1/0007 , H04B1/0003 , H04B1/406 , H04L27/0008
摘要： Disclosed is a receiver digital filter for a digital IF signal processor suitable for the specification of each communication standard in a communication system that supports at least one communication standard. The filter for each standard is constructed as one block, and includes a block for externally implementing the constructed block. The coefficient of the digital filter constructed in one block is implemented with an external input or an internal filter coefficient calculator by a basic filter building block. In this manner, the common resources required in the digital filter used in each communication standard are shared, and only the additionally required resources are selectively implemented. Since the shared resources are calculated by dynamic programming, a considerably smaller number of additional resources are required.
摘要翻译：公开了一种用于数字IF信号处理器的接收机数字滤波器，其适用于支持至少一个通信标准的通信系统中的每个通信标准的规范。每个标准的滤波器被构造为一个块，并且包括用于外部实现构造块的块。在一个块中构造的数字滤波器的系数由基本滤波器构建块的外部输入或内部滤波器系数计算器实现。以这种方式，在每个通信标准中使用的数字滤波器中所需的共同资源被共享，并且仅选择性地实现附加所需的资源。由于共享资源是通过动态规划计算的，所以需要相当少的额外资源。

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