公开(公告)号：US08351531B2

公开(公告)日：2013-01-08

申请号：US12215109

申请日：2008-06-25

申请人： Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Jae-Yeun Yun ,  Yong-Hoon Lee ,  Jin-Gon Joung ,  Won-Yong Shin

发明人： Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Jae-Yeun Yun ,  Yong-Hoon Lee ,  Jin-Gon Joung ,  Won-Yong Shin

IPC分类号： H04B7/02

CPC分类号： H04L25/03343 ,  H04B7/068 ,  H04L1/0606 ,  H04L1/0668 ,  H04L27/2647 ,  H04L2025/03426

摘要： An apparatus and a method for canceling interference using a space-frequency block coding in a multi-antenna system. The method includes confirming a code for coding to minimize a Pairwise Error Probability (PEP) of a transmit signal of which the PEP is maximized according to a time variation; and coding the transmit signal with the code and transmitting the coded signal via at least two antennas. Accordingly, the interference cancellation can be accomplished while lowering the complexity of the receiver without degrading the spectral efficiency.

公开(公告)号：US20060018412A1

公开(公告)日：2006-01-26

申请号：US11187476

申请日：2005-07-22

申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Jae-Yeol Kim ,  Jae-Yeun Yun ,  Young-Uhk Kim ,  Yong-Hoon Lee ,  Won-Yong Shin

发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Jae-Yeol Kim ,  Jae-Yeun Yun ,  Young-Uhk Kim ,  Yong-Hoon Lee ,  Won-Yong Shin

IPC分类号： H03D1/00

CPC分类号： H04L27/227 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2695 ,  H04L2027/0065

摘要： Disclosed is a method for estimating a frequency offset in a mobile communication system that divides a predetermined frequency band by a time division scheme to transmit data signals or divides an entire frequency band into a plurality of sub-frequency bands to transmit the data signals. The method includes the steps of modeling a fast fading channel by one of a linear equation and a polynomial equation; and applying the model to a variable for the channel after performing the modeling and estimating the channel and the frequency offset based on a joint maximum likelihood using a training sequence.

摘要翻译： 公开了一种用于估计移动通信系统中的频偏的方法，该移动通信系统通过时分方式划分预定频带以发送数据信号或将整个频带划分成多个子频带以发送数据信号。 该方法包括以下步骤：通过线性方程和多项式方程之一对快速衰落信道建模; 以及在使用训练序列进行建模和估计所述信道和基于使用训练序列的联合最大似然度的频率偏移之后将所述模型应用于所述信道的变量。

公开(公告)号：US20060018365A1

公开(公告)日：2006-01-26

申请号：US11188056

申请日：2005-07-22

申请人： Young-Ho Jung ,  Chan-Soo Hwang ,  Yong-Hoon Lee ,  Kyung-Min Kim ,  Jae-Yeun Yun ,  Won-Yong Shin ,  Jin-Gon Joung ,  Woo-Hyuk Chang ,  Woo-Seok Nam

发明人： Young-Ho Jung ,  Chan-Soo Hwang ,  Yong-Hoon Lee ,  Kyung-Min Kim ,  Jae-Yeun Yun ,  Won-Yong Shin ,  Jin-Gon Joung ,  Woo-Hyuk Chang ,  Woo-Seok Nam

IPC分类号： H04B1/713

CPC分类号： H04L5/026 ,  H04B1/7143 ,  H04B1/715 ,  H04B2001/7154 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0012

摘要： A method of transmitting a signal by using an Adaptive Modulation and Coding scheme in a Frequency Hopping-Orthogonal Frequency Division Multiplexing Access communication system capable of dividing total frequency bands into a plurality of sub-carrier bands and including a plurality of sub-channels, which are sets of predetermined sub-carrier bands, and a plurality of cells. The method includes the steps of allocating a predetermined number of sub-channels as AMC sub-channels per each cell matching with predetermined conditions in order to apply the AMC scheme to the AMC sub-channels, and allocating remaining sub-channels except for the AMC sub-channels as FH-OFDMA sub-channels in order to apply an FH-OFDMA scheme to the FH-OFDMA sub-channels.

摘要翻译： 一种在跳频 - 正交频分复用接入通信系统中使用自适应调制和编码方案发送信号的方法，其能够将总频带划分成多个子载波频带并且包括多个子信道，其中 是一组预定的子载波频带，以及多个小区。 该方法包括以下步骤：将每个小区的预定数量的子信道分配为与预定条件匹配的AMC子信道，以便将AMC方案应用于AMC子信道，以及分配除AMC之外的剩余子信道 子频道作为FH-OFDMA子信道，以便将FH-OFDMA方案应用于FH-OFDMA子信道。

公开(公告)号：US20090003416A1

公开(公告)日：2009-01-01

申请号：US12215109

申请日：2008-06-25

申请人： Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Jae-Yeun Yun ,  Yong-Hoon Lee ,  Jin-Gon Joung ,  Won-Yong Shin

发明人： Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Jae-Yeun Yun ,  Yong-Hoon Lee ,  Jin-Gon Joung ,  Won-Yong Shin

IPC分类号： H04B7/02 ,  H04B1/10 ,  H04L1/02 ,  H04L25/08

CPC分类号： H04L25/03343 ,  H04B7/068 ,  H04L1/0606 ,  H04L1/0668 ,  H04L27/2647 ,  H04L2025/03426

摘要： An apparatus and a method for canceling interference using a space-frequency block coding in a multi-antenna system. The method includes confirming a code for coding to minimize a Pairwise Error Probability (PEP) of a transmit signal of which the PEP is maximized according to a time variation; and coding the transmit signal with the code and transmitting the coded signal via at least two antennas. Accordingly, the interference cancellation can be accomplished while lowering the complexity of the receiver without degrading the spectral efficiency.

摘要翻译： 一种在多天线系统中使用空 - 频块编码来消除干扰的装置和方法。 该方法包括确认用于编码的代码以最小化根据时间变化使PEP最大化的发送信号的成对误差概率（PEP）; 以及用所述码对所述发送信号进行编码，并且经由至少两个天线发送所述编码信号。 因此，可以在降低接收机的复杂性而不降低频谱效率的同时实现干扰消除。

公开(公告)号：US20060104254A1

公开(公告)日：2006-05-18

申请号：US11274577

申请日：2005-11-15

申请人： Won-Yong Shin ,  Young-Ho Jung ,  Chan-Soo Hwang ,  Yong-Hoon Lee ,  Jin-Gon Joung

发明人： Won-Yong Shin ,  Young-Ho Jung ,  Chan-Soo Hwang ,  Yong-Hoon Lee ,  Jin-Gon Joung

IPC分类号： H04J1/00

CPC分类号： H04L27/2657 ,  H04L27/2662 ,  H04L27/2676

摘要： Disclosed is a method for acquiring synchronization in a mobile communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The method includes modeling a power delay profile in time-varying frequency selective fading channel conditions by a specific function; detecting a log probability distribution function of a timing offset and a frequency offset in consideration of a correlation between a received signal and the received multi-path signal in the time-varying frequency selective fading channel conditions having the power delay profile modeled as the specific function; and estimating a timing offset and a frequency offset which maximize the log probability distribution function of the timing offset and the frequency offset.

公开(公告)号：US08411611B2

公开(公告)日：2013-04-02

申请号：US12166875

申请日：2008-07-02

申请人： Tae Soo Kwon ,  Young-Doo Kim ,  Eung Sun Kim ,  Yong Hoon Lee ,  Sae-Young Chung ,  Heejung Yu ,  Won-Yong Shin

发明人： Tae Soo Kwon ,  Young-Doo Kim ,  Eung Sun Kim ,  Yong Hoon Lee ,  Sae-Young Chung ,  Heejung Yu ,  Won-Yong Shin

IPC分类号： H04B7/14

CPC分类号： H04W40/02 ,  H04W40/08 ,  H04W40/32 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/30 ,  Y02D70/324

摘要： A method of setting a packet transmission path in a wireless communication network and a network apparatus using the same are provided. A method of setting a packet transmission path includes setting N−1 routing regions including at least one node between a source node and a destination node based on a predetermined N number of hops, N denoting an integer greater than or equal to two, and determining a node in each of the routing regions as a relay node based on a channel gain.

摘要翻译： 提供了一种在无线通信网络中设置分组传输路径的方法和使用其的网络设备。 一种设置分组传输路径的方法包括基于预定的N个跳数来设置包括源节点和目的地节点之间的至少一个节点的N-1个路由区域，N表示大于或等于2的整数，并且确定 每个路由区域中的节点作为基于信道增益的中继节点。

公开(公告)号：US07969927B2

公开(公告)日：2011-06-28

申请号：US12384335

申请日：2009-04-02

申请人： Tak-Ki Yu ,  Eun-Seok Ko ,  Yu-Seok Kim ,  You-Kyung Oh ,  Yong-Hoon Lee ,  Woo-Seok Nam ,  Won-Yong Shin

发明人： Tak-Ki Yu ,  Eun-Seok Ko ,  Yu-Seok Kim ,  You-Kyung Oh ,  Yong-Hoon Lee ,  Woo-Seok Nam ,  Won-Yong Shin

IPC分类号： H04B7/14

CPC分类号： H04W52/367 ,  H04L1/1607 ,  H04L5/0032 ,  H04W16/14 ,  H04W52/241 ,  H04W52/46 ,  H04W72/04 ,  H04W88/04

摘要： An apparatus and a method for efficient resource allocation using a cognitive radio communication in Orthogonal Frequency Division Multiple Access (OFDMA)-based moving networks are provided. The method includes determining a minimum transmit power value of the MRS, which enables the internal terminal to have a receive Signal to Interference and Noise Ratio (SINR) greater than a first threshold; determining a transmit power value of the MRS by taking into account the determined minimum transmit power value; determining a transmit power value of the MRS per cellular terminal, which is transmittable at maximum while exerting interference less than a second threshold on a corresponding cellular terminal; searching one or more cellular terminals having the maximum transmittable transmit power value determined per cellular terminal greater than the determined transmit power value; and borrowing and allocating a resource allocated to the searched cellular terminal to the internal terminal.

摘要翻译： 提供了一种使用基于正交频分多址（OFDMA）的移动网络中的认知无线电通信的有效资源分配的装置和方法。 该方法包括确定MRS的最小发射功率值，其使得内部终端具有大于第一阈值的接收信号对干扰和噪声比（SINR）; 通过考虑所确定的最小发射功率值来确定MRS的发射功率值; 确定每个蜂窝终端的MRS的发射功率值，其可以在相应的蜂窝终端上施加小于第二阈值的干扰时最大可发射; 搜索具有大于所确定的发射功率值的每个蜂窝终端确定的具有最大可发射功率值的一个或多个蜂窝终端; 并将分配给搜索到的蜂窝终端的资源借用并分配给内部终端。

公开(公告)号：US20090097432A1

公开(公告)日：2009-04-16

申请号：US12166875

申请日：2008-07-02

申请人： TAE SOO KWON ,  YOUNG-DOO KIM ,  EUNG SUN KIM ,  YONG HOON LEE ,  SAE-YOUNG CHUNG ,  HEEJUNG YU ,  WON-YONG SHIN

发明人： TAE SOO KWON ,  YOUNG-DOO KIM ,  EUNG SUN KIM ,  YONG HOON LEE ,  SAE-YOUNG CHUNG ,  HEEJUNG YU ,  WON-YONG SHIN

IPC分类号： H04B7/14

CPC分类号： H04W40/02 ,  H04W40/08 ,  H04W40/32 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/30 ,  Y02D70/324

摘要： A method of setting a packet transmission path in a wireless communication network and a network apparatus using the same are provided. A method of setting a packet transmission path includes setting N−1 routing regions including at least one node between a source node and a destination node based on a predetermined N number of hops, N denoting an integer greater than or equal to two, and determining a node in each of the routing regions as a relay node based on a channel gain.

摘要翻译： 提供了一种在无线通信网络中设置分组传输路径的方法和使用其的网络设备。 设置分组传输路径的方法包括基于预定的N个跳数来设置包括源节点和目的地节点之间的至少一个节点的N-1个路由区域，N表示大于或等于2的整数，并且确定 每个路由区域中的节点作为基于信道增益的中继节点。

公开(公告)号：US20070201576A1

公开(公告)日：2007-08-30

申请号：US11703598

申请日：2007-02-07

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Jin-Gon Joung ,  Yong-Hoon Lee ,  Yong-Up Jang ,  Won-Yong Shin

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Jin-Gon Joung ,  Yong-Hoon Lee ,  Yong-Up Jang ,  Won-Yong Shin

IPC分类号： H04L1/02

CPC分类号： H04B7/0854 ,  H04B7/0417 ,  H04B7/0617

摘要： Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.

摘要翻译： 提供一种用于在通信系统中发送/接收数据的系统和方法。 该方法包括：计算用于发送数据的发送单元的处理矩阵，接收数据的接收单元的处理矩阵，由多个发送天线和多个接收天线形成的信道矩阵，以及发送的参数 当经由多个发送天线发送到多个接收天线的数据时，生成数据; 根据计算的矩阵和参数确定最小均方误差（MMSE）的最小值; 以及基于所确定的最小MMSE值使用MMSE复用方案来发送/接收数据。

公开(公告)号：US08243840B2

公开(公告)日：2012-08-14

申请号：US11703598

申请日：2007-02-07

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Jin-Gon Joung ,  Yong-Hoon Lee ,  Yong-Up Jang ,  Won-Yong Shin

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Jin-Gon Joung ,  Yong-Hoon Lee ,  Yong-Up Jang ,  Won-Yong Shin

IPC分类号： H04L1/02

CPC分类号： H04B7/0854 ,  H04B7/0417 ,  H04B7/0617

摘要： Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.

摘要翻译： 提供一种用于在通信系统中发送/接收数据的系统和方法。 该方法包括：计算用于发送数据的发送单元的处理矩阵，接收数据的接收单元的处理矩阵，由多个发送天线和多个接收天线形成的信道矩阵，以及发送的参数 当经由多个发送天线发送到多个接收天线的数据时，生成数据; 根据计算的矩阵和参数确定最小均方误差（MMSE）的最小值; 以及基于所确定的最小MMSE值使用MMSE复用方案来发送/接收数据。