公开(公告)号：US07460466B2

公开(公告)日：2008-12-02

申请号：US10539166

申请日：2003-06-02

申请人： Sok-Kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

发明人： Sok-Kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

IPC分类号： H04Q7/00

CPC分类号： H04J11/0026 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2602

摘要： Disclosed are an adaptive pilot symbol assignment method that flexibly controls the number of transmit antennas according to each user's moving speed, channel status, or user request, and assigns proper pilot symbols in the downlink of an OFDMA (Orthogonal Frequency Division Multiplexing Access) based cellular system; and a sub-carrier allocation method for high-speed mobile that allocates some sub-carriers to assign proper pilot symbols for ultrahigh-speed mobile users, and the rest of the sub-carriers to the other users to assign proper pilot symbols to the users, on the assumption that the ultrahigh-speed mobile users have a traffic volume almost insignificant to the whole traffic volume.

摘要翻译： 公开了一种根据每个用户的移动速度，信道状态或用户请求灵活地控制发射天线数量的自适应导频符号分配方法，并且在基于OFDMA（正交频分复用接入）的蜂窝小区的下行链路中分配适当的导频符号 系统; 以及用于高速移动的子载波分配方法，其分配一些子载波以为超高速移动用户分配适当的导频符号，并且将剩余的子载波分配给其他用户以向用户分配适当的导频符号 假设超高速移动用户的流量对整个流量几乎无关紧要。

公开(公告)号：USRE45498E1

公开(公告)日：2015-04-28

申请号：US12959154

申请日：2010-12-02

申请人： Sok-Kyu Lee ,  Kwang-soon Kim ,  Kyung-Hi Chang

发明人： Sok-Kyu Lee ,  Kwang-soon Kim ,  Kyung-Hi Chang

IPC分类号： H04J7/00 ,  H04J11/00

CPC分类号： H04J11/0026 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2602

摘要： Disclosed are an adaptive pilot symbol assignment method that flexibly controls the number of transmit antennas according to each user's moving speed, channel status, or user request, and assigns proper pilot symbols in the downlink of an OFDMA (Orthogonal Frequency Division Multiplexing Access) based cellular system; and a sub-carrier allocation method for high-speed mobile that allocates some sub-carriers to assign proper pilot symbols for ultrahigh-speed mobile users, and the rest of the sub-carriers to the other users to assign proper pilot symbols to the users, on the assumption that the ultrahigh-speed mobile users have a traffic volume almost insignificant to the whole traffic volume.

摘要翻译： 公开了一种根据每个用户的移动速度，信道状态或用户请求灵活地控制发射天线数量的自适应导频符号分配方法，并且在基于OFDMA（正交频分复用接入）的蜂窝小区的下行链路中分配适当的导频符号 系统; 以及用于高速移动的子载波分配方法，其分配一些子载波以为超高速移动用户分配适当的导频符号，并且将剩余的子载波分配给其他用户以向用户分配适当的导频符号 假设超高速移动用户的流量对整个流量几乎无关紧要。

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.

公开(公告)号：US07542504B2

公开(公告)日：2009-06-02

申请号：US10532734

申请日：2002-11-26

申请人： Kyung-Hi Chang ,  Kwang-Soon Kim ,  Yong-Soo Cho ,  Suk-Won Ha

发明人： Kyung-Hi Chang ,  Kwang-Soon Kim ,  Yong-Soo Cho ,  Suk-Won Ha

IPC分类号： H04B1/00 ,  H04B1/66

CPC分类号： H04L5/0044 ,  H04B1/713 ,  H04B1/7136 ,  H04B1/7143 ,  H04B2001/71367 ,  H04B2001/7154 ,  H04L1/0025 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2657

摘要： Method for providing frequency-hopping OFDMA using symbols of comb patter, the method including the steps of: a) assigning frequency domain signal X(k) of comb pattern (comb symbol, k is frequency index) to modulated data sequence, the comb symbol comprising predetermined number of sub carriers (sub carrier group) which are placed with predetermined interval in the whole available frequency band; b) getting the comb symbol hopped for the comb symbol to have independent frequency offset; and c) inverse fast fourier transforming the comb symbol to time domain signal x(n) (n is time index) and transmitting the signal.

摘要翻译： 一种用于使用梳状图案符号提供跳频OFDMA的方法，所述方法包括以下步骤：a）将梳状模式（梳状符号，k为频率索引）的频域信号X（k）分配给调制数据序列，梳状符号 包括在整个可用频带中以预定间隔放置的预定数量的子载波（子载波组）; b）使梳状符号跳转的梳状符号具有独立的频率偏移; 和c）将梳状符号逆向快速傅立叶变换成时域信号x（n）（n是时间索引）并发送信号。

公开(公告)号：US20060146867A1

公开(公告)日：2006-07-06

申请号：US10539166

申请日：2003-06-02

申请人： Lok-kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

发明人： Lok-kyu Lee ,  Kwang-Soon Kim ,  Kyung-Hi Chang

IPC分类号： H04Q7/20 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00

CPC分类号： H04J11/0026 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/06 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2602

摘要： Disclosed are an adaptive pilot symbol assignment method that flexibly controls the number of transmit antennas according to each user's moving speed, channel status, or user request, and assigns proper pilot symbols in the downlink of an OFDMA (Orthogonal Frequency Division Multiplexing Access) based cellular system; and a sub-carrier allocation method for high-speed mobile that allocates some sub-carriers to assign proper pilot symbols for ultrahigh-speed mobile users, and the rest of the sub-carriers to the other users to assign proper pilot symbols to the users, on the assumption that the ultrahigh-speed mobile users have a traffic volume almost insignificant to the whole traffic volume.

摘要翻译： 公开了一种根据每个用户的移动速度，信道状态或用户请求灵活地控制发射天线数量的自适应导频符号分配方法，并且在基于OFDMA（正交频分复用接入）的蜂窝小区的下行链路中分配适当的导频符号 系统; 以及用于高速移动的子载波分配方法，其分配一些子载波以为超高速移动用户分配适当的导频符号，并且将剩余的子载波分配给其他用户以向用户分配适当的导频符号 假设超高速移动用户的流量对整个流量几乎无关紧要。

公开(公告)号：US20060072649A1

公开(公告)日：2006-04-06

申请号：US10532734

申请日：2002-11-26

申请人： Kyung-Hi Chang ,  Kwang-Soon Kim ,  Yong-Soo Cho ,  Suk-Won Ha

发明人： Kyung-Hi Chang ,  Kwang-Soon Kim ,  Yong-Soo Cho ,  Suk-Won Ha

IPC分类号： H04B1/713 ,  H04K1/10

CPC分类号： H04L5/0044 ,  H04B1/713 ,  H04B1/7136 ,  H04B1/7143 ,  H04B2001/71367 ,  H04B2001/7154 ,  H04L1/0025 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2657

摘要： Method for providing frequency-hopping OFDMA using symbols of comb patter, the method including the steps of: a) assigning frequency domain signal X(k) of comb pattern (comb symbol, k is frequency index) to modulated data sequence, the comb symbol comprising predetermined number of sub carriers (sub carrier group) which are placed with predetermined interval in the whole available frequency band; b) getting the comb symbol hopped for the comb symbol to have independent frequency offset; and c) inverse fast fourier transforming the comb symbol to time domain signal x(n) (n is time index) and transmitting the signal.

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。

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。

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。

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。