公开(公告)号：US08503565B2

公开(公告)日：2013-08-06

申请号：US12739730

申请日：2008-10-23

申请人： Woo Yong Lee ,  Hyoung Jin Kwon ,  Kyeongpyo Kim ,  Jin Kyeong Kim ,  Yong Sun Kim ,  Jae Sup Lee ,  Young-chai Ko

发明人： Woo Yong Lee ,  Hyoung Jin Kwon ,  Kyeongpyo Kim ,  Jin Kyeong Kim ,  Yong Sun Kim ,  Jae Sup Lee ,  Young-chai Ko

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0434 ,  H04B7/0619

摘要： A multiple antenna communication method and a multiple antenna communication system are provided. The multiple antenna communication method includes: determining a weighting vector with respect to a plurality of transmit antennas, using a spread spectrum code; determining a target transmission rate of each of the transmit antennas using the determined weighting vector; transmitting information associated with the target transmission rate to a multiple antenna reception apparatus; receiving, from the multiple antenna reception apparatus, channel information including information regarding whether to accept the transmitted target transmission rate information; and transmitting data to the multiple antenna reception apparatus using the received channel information.

摘要翻译： 提供多天线通信方法和多天线通信系统。 多天线通信方法包括：使用扩频码确定相对于多个发射天线的加权矢量; 使用确定的加权矢量确定每个发射天线的目标传输速率; 将与所述目标传输速率相关联的信息发送到多天线接收装置; 从所述多个天线接收装置接收包括关于是否接受所发送的目标传输速率信息的信息的信道信息; 以及使用所接收的信道信息将数据发送到所述多天线接收装置。

公开(公告)号：US20100296599A1

公开(公告)日：2010-11-25

申请号：US12739730

申请日：2008-10-23

申请人： Woo Yong Lee ,  Hyoung Jin Kwon ,  Kyeongpyo Kim ,  Jin Kyeong Kim ,  Yong Sun Kim ,  Jae Sup Lee ,  Young-chai Ko

发明人： Woo Yong Lee ,  Hyoung Jin Kwon ,  Kyeongpyo Kim ,  Jin Kyeong Kim ,  Yong Sun Kim ,  Jae Sup Lee ,  Young-chai Ko

IPC分类号： H04L1/02

CPC分类号： H04B7/0617 ,  H04B7/0434 ,  H04B7/0619

摘要： A multiple antenna communication method and a multiple antenna communication system are provided. The multiple antenna communication method includes: determining a weighting vector with respect to a plurality of transmit antennas, using a spread spectrum code; determining a target transmission rate of each of the transmit antennas using the determined weighting vector; transmitting information associated with the target transmission rate to a multiple antenna reception apparatus; receiving, from the multiple antenna reception apparatus, channel information including information regarding whether to accept the transmitted target transmission rate information; and transmitting data to the multiple antenna reception apparatus using the received channel information.

摘要翻译： 提供多天线通信方法和多天线通信系统。 多天线通信方法包括：使用扩频码确定相对于多个发射天线的加权矢量; 使用确定的加权矢量确定每个发射天线的目标传输速率; 将与所述目标传输速率相关联的信息发送到多天线接收装置; 从所述多个天线接收装置接收包括关于是否接受所发送的目标传输速率信息的信息的信道信息; 以及使用所接收的信道信息将数据发送到所述多天线接收装置。

公开(公告)号：US20070041471A1

公开(公告)日：2007-02-22

申请号：US11449759

申请日：2006-06-09

申请人： Jae-ho Roh ,  Young-chai Ko

发明人： Jae-ho Roh ,  Young-chai Ko

IPC分类号： H04L27/00 ,  H04L1/02

CPC分类号： H04L1/0643 ,  H04L1/0006 ,  H04L1/0026

摘要： A transmitting apparatus and method in a transmit diversity system, which transmits a plurality of block-coded symbols over a plurality of antennas are provided. The transmitting apparatus includes N+M antennas where N is an integer equal to or greater than two and M is an integer equal to or greater than one; a switch which forwards N-ary block-coded symbols to N-ary antennas of the N+M antennas; and a switch controller which controls switching of the switch, and when a receiving end which receives the N-ary block-coded symbols informs the switch controller of a poor reception state, the switch controller forwards the-N-ary block-coded symbols to other N-ary antennas which include at least one antenna different from the N-ary antennas. The block-coded symbols can be transmitted by selectively using more antennas than block-coded symbols.

摘要翻译： 提供了在多个天线上发送多个块编码符号的发送分集系统中的发送装置和方法。 发送装置包括N + M个天线，其中N是等于或大于2的整数，M是等于或大于1的整数; 将N个块编码符号转发到N + M个天线的N个天线的开关; 以及开关控制器，其控制开关的切换，并且当接收到N元块编码符号的接收端通知交换控制器的接收状态不佳时，开关控制器将N个块编码符号转发到 包括至少一个不同于N-ary天线的天线的N天线。 可以通过选择性地使用比块编码符号更多的天线来发送块编码的符号。

公开(公告)号：US07930620B2

公开(公告)日：2011-04-19

申请号：US11542110

申请日：2006-10-04

申请人： Eoi-young Choi ,  Jae-ho Roh ,  Young-chai Ko ,  Ki-hong Park

发明人： Eoi-young Choi ,  Jae-ho Roh ,  Young-chai Ko ,  Ki-hong Park

IPC分类号： G06F11/00

CPC分类号： H03M13/1117

摘要： A method is provided for updating a check node in a low density parity check (LDPC) decoder, including: transmitting log-likelihood ratio (LLR) messages from variable nodes to a plurality of check nodes; decomposing the LLR messages in a plurality of node messages for each check node; and updating each check node using a modified function g(x), which is a function g′(x) comprising a sum operation of exponential functions based on the node messages.

摘要翻译： 提供一种用于更新低密度奇偶校验（LDPC）解码器中的校验节点的方法，包括：从可变节点向多个校验节点发送对数似然比（LLR）消息; 在每个校验节点的多个节点消息中分解LLR消息; 以及使用修改的函数g（x）来更新每个校验节点，所述修改函数g（x）是包括基于所述节点消息的指数函数的和运算的函数g'（x）。

公开(公告)号：US07643574B2

公开(公告)日：2010-01-05

申请号：US11449759

申请日：2006-06-09

申请人： Jae-ho Roh ,  Young-chai Ko

发明人： Jae-ho Roh ,  Young-chai Ko

IPC分类号： H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04L1/0643 ,  H04L1/0006 ,  H04L1/0026

摘要： A transmitting apparatus and method in a transmit diversity system, which transmits a plurality of block-coded symbols over a plurality of antennas are provided. The transmitting apparatus includes N+M antennas where N is an integer equal to or greater than two and M is an integer equal to or greater than one; a switch which forwards N-ary block-coded symbols to N-ary antennas of the N+M antennas; and a switch controller which controls switching of the switch, and when a receiving end which receives the N-ary block-coded symbols informs the switch controller of a poor reception state, the switch controller forwards the N-ary block-coded symbols to other N-ary antennas which include at least one antenna different from the N-ary antennas. The block-coded symbols can be transmitted by selectively using more antennas than block-coded symbols.

摘要翻译： 提供了在多个天线上发送多个块编码符号的发送分集系统中的发送装置和方法。 发送装置包括N + M个天线，其中N是等于或大于2的整数，M是等于或大于1的整数; 将N个块编码符号转发到N + M个天线的N个天线的开关; 以及开关控制器，其控制开关的切换，并且当接收到N元块编码符号的接收端通知交换控制器的接收状态不佳时，开关控制器将N个块编码符号转发到其他 N天线包括至少一个与N-ary天线不同的天线。 可以通过选择性地使用比块编码符号更多的天线来发送块编码的符号。

公开(公告)号：US20070094568A1

公开(公告)日：2007-04-26

申请号：US11542110

申请日：2006-10-04

申请人： Eoi-young Choi ,  Jae-ho Roh ,  Young-chai Ko ,  Ki-hong Park

发明人： Eoi-young Choi ,  Jae-ho Roh ,  Young-chai Ko ,  Ki-hong Park

IPC分类号： H03M13/00

CPC分类号： H03M13/1117

摘要： A method is provided for updating a check node in a low density parity check (LDPC) decoder, including: transmitting log-likelihood ratio (LLR) messages from variable nodes to a plurality of check nodes; decomposing the LLR messages in a plurality of node messages for each check node; and updating each check node using a modified function g(x), which is a function g′(x) comprising a sum operation of exponential functions based on the node messages.

摘要翻译： 提供一种用于更新低密度奇偶校验（LDPC）解码器中的校验节点的方法，包括：从可变节点向多个校验节点发送对数似然比（LLR）消息; 在每个校验节点的多个节点消息中分解LLR消息; 以及使用修改的函数g（x）来更新每个校验节点，所述修改函数g（x）是包括基于所述节点消息的指数函数的和运算的函数g'（x）。