公开(公告)号：US08477880B2

公开(公告)日：2013-07-02

申请号：US12629433

申请日：2009-12-02

申请人： Young Jo Bang ,  Young Ha Lee ,  Jung Pil Choi ,  Hoon Lee ,  Seungjae Bahng ,  Youn Ok Park ,  Il Min Kim

发明人： Young Jo Bang ,  Young Ha Lee ,  Jung Pil Choi ,  Hoon Lee ,  Seungjae Bahng ,  Youn Ok Park ,  Il Min Kim

IPC分类号： H04L27/08

CPC分类号： H04L25/0321 ,  H04L27/34 ,  H04L2025/03426

摘要： In a multi-input multi-output communication system receiving signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a matrix determining a position of a symbol to be detected from a received signal is calculated at a first symbol detection step, and from the subsequent step, a matrix at the current step is acquired through a simple relationship from the matrix calculated at the previous step to determine a position of a symbol to be detected.

摘要翻译： 在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出通信系统中，在第一符号检测步骤中计算从接收信号确定要检测的符号的位置的矩阵 ，并且从后续步骤，通过从在前一步骤计算的矩阵的简单关系获取当前步骤中的矩阵，以确定要检测的符号的位置。

公开(公告)号：US20080137781A1

公开(公告)日：2008-06-12

申请号：US11930013

申请日：2007-10-30

申请人： Young-Jo Bang ,  Chang-Wahn Yu ,  Seung-Jae Bahng ,  Dae-Ho Kim ,  Youn-Ok Park ,  Jee-Hwan Ahn ,  Il Min Kim

发明人： Young-Jo Bang ,  Chang-Wahn Yu ,  Seung-Jae Bahng ,  Dae-Ho Kim ,  Youn-Ok Park ,  Jee-Hwan Ahn ,  Il Min Kim

IPC分类号： H04L27/06

CPC分类号： H04L25/03242 ,  H04L1/0631

摘要： The present invention relates to a method of detecting a space-time code in a mobile communication system. When detecting a space-time code B for a plurality of transmitting antennas, an ML (maximum likelihood) metric, which is generally calculated by using a specific structure of a matrix B, is defined as a new ML metric by reducing a variable of the ML metric. Two dependent sphere decoding processes are performed and an intersection of the decoding results is calculated, and a signal is detected from the ML metric. Therefore, since detection of the space-time code B for the plurality of transmitting antennas is performed by using the newly defined ML metric, an amount of matrix calculated can be reduced, and a calculation amount can be reduced by performing the two dependent sphere decoding processes. Further, since a detection order of symbols is changed according to a channel situation, it is possible to improve the performance of the system.

摘要翻译： 本发明涉及一种在移动通信系统中检测时空码的方法。 当检测到多个发射天线的时空码B时，通常通过使用矩阵B的特定结构计算的ML（最大似然度）度量被定义为新的ML度量，通过减少 ML度量。 执行两个相关球体解码处理，并且计算解码结果的交点，并且从ML度量检测信号。 因此，由于通过使用新定义的ML度量来执行多个发送天线的空时码B的检测，所以可以减少计算出的矩阵的量，并且可以通过执行两个相关球体解码来减少计算量 过程。 此外，由于符号的检测顺序根据通道情况而改变，因此可以提高系统的性能。

公开(公告)号：US08160174B2

公开(公告)日：2012-04-17

申请号：US12627506

申请日：2009-11-30

申请人： Young Jo Bang ,  Hyeong Sook Park ,  Jun-Woo Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

发明人： Young Jo Bang ,  Hyeong Sook Park ,  Jun-Woo Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

IPC分类号： H04B7/02 ,  H04L5/12 ,  H04L27/06

CPC分类号： H04L25/067 ,  H04B7/0413

摘要： Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution.

摘要翻译： 公开了一种在具有多输入多输出天线的通信系统的接收机处检测信号的方法。 利用信号检测方法，首先计算接收信号矢量和通道状态考虑的发送符号向量之间的距离的平方，然后将距离的平方分成第一和第二分量。 将第一分量最小化以计算多个第一软符号估计。 基于多个第一软符号估计来计算第一分量的解集合。 将第二分量最小化以计算多个第二软符号估计。 基于多个第二软符号估计来计算第二分量的解集合。 通过执行第一分量解集合和第二分量解的和来计算最终解集。

公开(公告)号：US08135099B2

公开(公告)日：2012-03-13

申请号：US12127342

申请日：2008-05-27

申请人： Young Jo Bang ,  Chang Wahn Yu ,  Seung Jae Bahng ,  Dae Ho Kim ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

发明人： Young Jo Bang ,  Chang Wahn Yu ,  Seung Jae Bahng ,  Dae Ho Kim ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

IPC分类号： H04B1/10

CPC分类号： H04B7/0413 ,  H04B7/0854

摘要： The present invention relates to a transmission symbol detection method in a multiple antenna system. In the present invention, when a channel matrix is estimated through channel estimation, a receiving side calculates a Q matrix and an R matrix through QR decomposition that is more simplified than a typical QR decomposition from an augmented channel matrix that includes the estimated channel matrix. In addition, the receiving side detects symbols having the minimum Euclidean metric by using the two matrixes, as transmission symbols.

摘要翻译： 本发明涉及多天线系统中的发射符号检测方法。 在本发明中，当通过信道估计来估计信道矩阵时，接收侧通过QR分解来计算Q矩阵和R矩阵，其比来自包括估计信道矩阵的增强信道矩阵的典型QR分解更简化。 此外，接收端通过使用两个矩阵来检测具有最小欧几里德量度的符号作为发送符号。

公开(公告)号：US06990078B2

公开(公告)日：2006-01-24

申请号：US09726538

申请日：2000-12-01

申请人： Il Min Kim ,  Hyung Myung Kim

发明人： Il Min Kim ,  Hyung Myung Kim

IPC分类号： H04L1/00

CPC分类号： H04L1/007 ,  H04L2001/0098 ,  H04N21/235 ,  H04N21/435 ,  H04N21/43637 ,  H04N21/6131 ,  H04N21/6332 ,  H04N21/654 ,  H04W52/0212 ,  H04W52/20

摘要： A method of controlling the bit error rate of packets in a wired or wireless communication system controls differently the target bit error rate (BER) of a video packet depending on the state of importance after determining importance of the video information in the video packet by making the target BER of the important packet smaller and the target BER of the less important packet larger.

摘要翻译： 一种控制有线或无线通信系统中分组的比特错误率的方法根据视频分组中视频信息的重要性确定视频分组的目标误码率（BER）而不同地控制视频分组的目标比特误码率 重要分组的目标BER较小，较不重要的分组的目标BER较大。