公开(公告)号：US08160182B2

公开(公告)日：2012-04-17

申请号：US12410416

申请日：2009-03-24

申请人： Chin-Hung Chen ,  Pang-An Ting ,  Cheng-Ming Chen ,  Chih-Yu Chen

发明人： Chin-Hung Chen ,  Pang-An Ting ,  Cheng-Ming Chen ,  Chih-Yu Chen

IPC分类号： H04L27/06 ,  H03D1/24

CPC分类号： H04L25/0246 ,  H04B7/0413 ,  H04L25/03229 ,  H04L25/03242 ,  H04L25/03968

摘要： A symbol detector with a sphere decoding method implemented therein. A baseband signal is received to determine a maximum likelihood solution using the sphere decoding algorithm. A QR decomposer performs a QR decomposition process on a channel response matrix to generate a Q matrix and an R matrix. A matrix transformer generates an inner product matrix of the Q matrix and the received signal. A scheduler reorganizes a search tree, and takes a search mission apart into a plurality of independent branch missions, wherein the search tree defines a full search depth Nfull. A plurality of Euclidean distance calculators are controlled by the scheduler to operate in parallel, wherein each has a plurality of calculation units cascaded in a pipeline structure to search for the maximum likelihood solution based on the R matrix and the inner product matrix.

摘要翻译： 一种其中实现了球体解码方法的符号检测器。 接收基带信号以使用球体解码算法确定最大似然解。 QR分解器对信道响应矩阵执行QR分解处理以产生Q矩阵和R矩阵。 矩阵变换器产生Q矩阵和接收信号的内积矩阵。 调度器重新组织搜索树，并将搜索任务分离成多个独立的分支任务，其中搜索树定义全搜索深度Nfull。 多个欧几里德距离计算器由调度器控制以并行操作，其中每个具有在流水线结构中级联的多个计算单元，以基于R矩阵和内积矩阵搜索最大似然解。

公开(公告)号：US20100014606A1

公开(公告)日：2010-01-21

申请号：US12410416

申请日：2009-03-24

申请人： Chin-Hung Chen ,  Pang-An Ting ,  Cheng-Ming Chen ,  Chih-Yu Chen

发明人： Chin-Hung Chen ,  Pang-An Ting ,  Cheng-Ming Chen ,  Chih-Yu Chen

IPC分类号： H04L5/12 ,  H04L27/06

CPC分类号： H04L25/0246 ,  H04B7/0413 ,  H04L25/03229 ,  H04L25/03242 ,  H04L25/03968

摘要： A symbol detector with a sphere decoding method implemented therein. A baseband signal is received to determine a maximum likelihood solution using the sphere decoding algorithm. A QR decomposer performs a QR decomposition process on a channel response matrix to generate a Q matrix and an R matrix. A matrix transformer generates an inner product matrix of the Q matrix and the received signal. A scheduler reorganizes a search tree, and takes a search mission apart into a plurality of independent branch missions, wherein the search tree defines a full search depth Nfull. A plurality of Euclidean distance calculators are controlled by the scheduler to operate in parallel, wherein each has a plurality of calculation units cascaded in a pipeline structure to search for the maximum likelihood solution based on the R matrix and the inner product matrix.

摘要翻译： 一种其中实现了球体解码方法的符号检测器。 接收基带信号以使用球体解码算法确定最大似然解。 QR分解器对信道响应矩阵执行QR分解处理以产生Q矩阵和R矩阵。 矩阵变换器产生Q矩阵和接收信号的内积矩阵。 调度器重新组织搜索树，并将搜索任务分离成多个独立的分支任务，其中搜索树定义全搜索深度Nfull。 多个欧几里德距离计算器由调度器控制以并行操作，其中每个具有在流水线结构中级联的多个计算单元，以基于R矩阵和内积矩阵搜索最大似然解。

公开(公告)号：US20090279631A1

公开(公告)日：2009-11-12

申请号：US12432309

申请日：2009-04-29

申请人： Cheng-Ming CHEN ,  Jen-Yuan Hsu ,  Pang-An Ting ,  Chih-Yu Chen

发明人： Cheng-Ming CHEN ,  Jen-Yuan Hsu ,  Pang-An Ting ,  Chih-Yu Chen

IPC分类号： H04L1/02

CPC分类号： H04L1/1819 ,  H04L1/0631 ,  H04L1/0643 ,  H04L1/1893

摘要： In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.

摘要翻译： 在多输入多输出（MIMO）无线通信系统中，提供了一种用于纠错的方法。 该方法包括以初始MIMO格式接收原始信号，检测原始信号中的错误，以及通知发送机在原始信号中检测到的错误。 该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号，该新的重发信号至少包括原始信号的编码比特的一部分。 该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

公开(公告)号：US08526516B2

公开(公告)日：2013-09-03

申请号：US12432309

申请日：2009-04-29

申请人： Cheng-Ming Chen ,  Jen-Yuan Hsu ,  Pang-An Ting ,  Chih-Yu Chen

发明人： Cheng-Ming Chen ,  Jen-Yuan Hsu ,  Pang-An Ting ,  Chih-Yu Chen

IPC分类号： H04L27/28

CPC分类号： H04L1/1819 ,  H04L1/0631 ,  H04L1/0643 ,  H04L1/1893

摘要： In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.

摘要翻译： 在多输入多输出（MIMO）无线通信系统中，提供了一种用于纠错的方法。 该方法包括以初始MIMO格式接收原始信号，检测原始信号中的错误，以及通知发送机在原始信号中检测到的错误。 该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号，该新的重发信号至少包括原始信号的编码比特的一部分。 该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

公开(公告)号：US20080260076A1

公开(公告)日：2008-10-23

申请号：US12118632

申请日：2008-05-09

申请人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Chin-Hung Chen ,  Pang-An Ting

发明人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Chin-Hung Chen ,  Pang-An Ting

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： In one aspect of the invention, a carrier frequency offset (CFO) estimation method to estimate a CFO value of a received signal is provided, and the method comprises: receiving a preamble signal which includes several non-perfect repeat segments; applying an interpolation procedure to interpolate the perfect repeat point of one segment compared with the next segment or the previous segment; acquiring a delay correlation value based on the two perfect repeat signal segments and estimating the CFO value based on the delay correlation value.

摘要翻译： 在本发明的一个方面，提供了一种用于估计接收信号的CFO值的载波频率偏移（CFO）估计方法，并且该方法包括：接收包括若干非完美重复段的前同步码信号; 应用插值过程来内插与下一个段或先前段相比的一个段的完美重复点; 基于两个完美重复信号段获取延迟相关值，并基于延迟相关值估计CFO值。

公开(公告)号：US20080153444A1

公开(公告)日：2008-06-26

申请号：US11978642

申请日：2007-10-30

申请人： Chin-Hung Chen ,  Jia-Hao Wu ,  Yung-Yih Jian ,  Pang-An Ting

发明人： Chin-Hung Chen ,  Jia-Hao Wu ,  Yung-Yih Jian ,  Pang-An Ting

IPC分类号： H04B1/16

CPC分类号： H04L1/0047

摘要： A hybrid sphere decoding method is disclosed. Received data is processed to obtain preliminary parameters. Mbf layers are determined to use breadth-first search and Mdf layers to use depth-first search. A search process is implemented based on the preliminary parameters, in which Mbf layers are searched using breadth-first search and Mdf layers are searched using depth-first search.

摘要翻译： 公开了一种混合球解码方法。 处理接收到的数据以获得初步参数。 确定层Bb层使用宽度优先搜索和M层df层以使用深度优先搜索。 基于初步参数来实现搜索过程，其中使用宽度优先搜索搜索M层bf层，并且使用深度优先搜索来搜索M层df层。

公开(公告)号：US07860178B2

公开(公告)日：2010-12-28

申请号：US11889958

申请日：2007-08-17

申请人： Chun-Chun Kuo ,  Chin-Hung Chen ,  Chao-Kai Wen ,  Pang-An Ting

发明人： Chun-Chun Kuo ,  Chin-Hung Chen ,  Chao-Kai Wen ,  Pang-An Ting

IPC分类号： H04K1/10

CPC分类号： H04L27/2662 ,  H04L27/2666 ,  H04L27/2676

摘要： A guard section length detection method is disclosed. In the method, a guard section length detection method is used in an OFDM system. The OFDM symbol includes a data interval having a first length, and a guard section having a guard section length. The method detects a first symbol boundary and a second symbol boundary, and determines the guard section length based on a length between the first symbol boundary and the second symbol boundary.

摘要翻译： 公开了一种防护部长度检测方法。 在该方法中，在OFDM系统中使用保护部分长度检测方法。 OFDM符号包括具有第一长度的数据间隔和具有保护部分长度的保护部分。 该方法检测第一符号边界和第二符号边界，并且基于第一符号边界和第二符号边界之间的长度来确定保护部分长度。

公开(公告)号：US08135093B2

公开(公告)日：2012-03-13

申请号：US12118632

申请日：2008-05-09

申请人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Chin-Hung Chen ,  Pang-An Ting

发明人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Chin-Hung Chen ,  Pang-An Ting

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： In one aspect of the invention, a carrier frequency offset (CFO) estimation method to estimate a CFO value of a received signal is provided, and the method comprises: receiving a preamble signal which includes several non-perfect repeat segments; applying an interpolation procedure to interpolate the perfect repeat point of one segment compared with the next segment or the previous segment; acquiring a delay correlation value based on the two perfect repeat signal segments and estimating the CFO value based on the delay correlation value.

摘要翻译： 在本发明的一个方面，提供了一种用于估计接收信号的CFO值的载波频率偏移（CFO）估计方法，并且该方法包括：接收包括若干非完美重复段的前同步码信号; 应用插值过程来内插与下一个段或先前段相比的一个段的完美重复点; 基于两个完美重复信号段获取延迟相关值，并基于延迟相关值估计CFO值。

公开(公告)号：US08132065B2

公开(公告)日：2012-03-06

申请号：US11978642

申请日：2007-10-30

申请人： Chin-Hung Chen ,  Jia-Hao Wu ,  Yung-Yih Jian ,  Pang-An Ting

发明人： Chin-Hung Chen ,  Jia-Hao Wu ,  Yung-Yih Jian ,  Pang-An Ting

IPC分类号： G06F11/00

CPC分类号： H04L1/0047

摘要： A hybrid sphere decoding method is disclosed. Received data is processed to obtain preliminary parameters. Mbf layers are determined to use breadth-first search and Mdf layers to use depth-first search. A search process is implemented based on the preliminary parameters, in which Mbf layers are searched using breadth-first search and Mdf layers are searched using depth-first search.

摘要翻译： 公开了一种混合球解码方法。 处理接收到的数据以获得初步参数。 确定Mbf层使用宽度优先搜索和Mdf层来使用深度优先搜索。 基于初步参数实现搜索过程，其中使用宽度优先搜索搜索Mbf层并且使用深度优先搜索来搜索Mdf层。

公开(公告)号：US08042031B2

公开(公告)日：2011-10-18

申请号：US11907487

申请日：2007-10-12

申请人： Chin-Hung Chen ,  Yu-Tao Hsieh ,  Jen-Yuan Hsu ,  Pang-An Ting

发明人： Chin-Hung Chen ,  Yu-Tao Hsieh ,  Jen-Yuan Hsu ,  Pang-An Ting

IPC分类号： H03M13/39

CPC分类号： H04L25/03242

摘要： A maximum likelihood detection (MLD) method is disclosed. Received data is processed to obtain preliminary parameters. An initial radius r is determined. r2 is multiplied by a corresponding scaling factor according to a partial Euclidean distance (PED) constraint function to determine the upper limit values of PED for each layer. It is examined whether a sub-lattice exceeds a search scope according to the upper limit values of PED for each layer to search a better solution by utilizing the preliminary parameters.

摘要翻译： 公开了最大似然检测（MLD）方法。 处理接收到的数据以获得初步参数。 确定初始半径r。 r2根据部分欧几里得距离（PED）约束函数乘以相应的缩放因子，以确定每层的PED的上限值。 根据各层的PED的上限值，检查子网格是否超过搜索范围，通过利用初步参数来搜索更好的解决方案。