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    SYSTEMS AND METHODS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATIONS SYSTEMS
    1.
    发明申请
    SYSTEMS AND METHODS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATIONS SYSTEMS 有权
    多输入多输出通信系统的系统与方法

    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。

    Systems and methods for multiple-input multiple-output communications systems
    2.
    发明授权
    Systems and methods for multiple-input multiple-output communications systems 有权
    多输入多输出通信系统的系统和方法

    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。

    Symbol detector and sphere decoding method
    5.
    发明授权
    Symbol detector and sphere decoding method 有权
    符号检测器和球体解码方法

    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。

    SYMBOL DETECTOR AND SPHERE DECODING METHOD
    6.
    发明申请
    SYMBOL DETECTOR AND SPHERE DECODING METHOD 有权
    符号检测器和球形解码方法

    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。

    System and method for subcarrier allocation and permutation
    7.
    发明授权
    System and method for subcarrier allocation and permutation 有权
    子载波分配和置换的系统和方法

    公开(公告)号：US08331482B2

    公开(公告)日：2012-12-11

    申请号：US12481880

    申请日：2009-06-10

    申请人： Lai-Huei Wang ,  Chia-Lung Tsai ,  Yu-Tao Hsieh ,  Pang-An Ting ,  Jen-Yuan Hsu

    发明人： Lai-Huei Wang ,  Chia-Lung Tsai ,  Yu-Tao Hsieh ,  Pang-An Ting ,  Jen-Yuan Hsu

    IPC分类号： H04L27/26 ,  H04L23/00

    CPC分类号： H04L5/0048 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044

    摘要： A subcarrier allocation method for use by a transmitter, the transmitter being configured to, when transmitting first and second data streams, allocate pilot symbols for the first and second data streams to subcarriers, such that a first plurality of subcarriers carry the pilot symbols for the first data stream and a second plurality of subcarriers carry the pilot symbols for the second data stream. The method includes allocating, when the transmitter transmits the first data stream but does not transmit the second data stream, the second plurality of subcarriers to carry no formation or information relating to the first data stream.

    摘要翻译： 一种由发射机使用的副载波分配方法，所述发射机被配置为当发射第一和第二数据流时，将第一和第二数据流的导频符号分配给子载波，使得第一多个子载波携带用于 第一数据流和第二多个子载波携带用于第二数据流的导频符号。 该方法包括当发射机发送第一数据流但不发送第二数据流时，分配第二多个子载波，以不携带与第一数据流有关的形成或信息。

    Communication methods and systems having permutation schemes
    8.
    发明授权
    Communication methods and systems having permutation schemes 有权
    具有置换方案的通信方法和系统

    公开(公告)号：US08239710B2

    公开(公告)日：2012-08-07

    申请号：US12503584

    申请日：2009-07-15

    申请人： Chia-Lung Tsai ,  Yu-Tao Hsieh ,  Jen-Yuan Hsu ,  Pang-An Ting

    发明人： Chia-Lung Tsai ,  Yu-Tao Hsieh ,  Jen-Yuan Hsu ,  Pang-An Ting

    IPC分类号： G06F11/00

    CPC分类号： H04K1/06 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044

    摘要： A wireless communication method implemented in a communication system may include receiving a data sequence to be permuted, and obtaining information associated with the data sequence to be permuted, the information containing at least a length of the data sequence and a sampling spacing for permuting the data sequence. The method may also include identifying a first portion of the data sequence having a first number of adjacent data items, and a second portion of the data sequence having a second number of adjacent data items. The method may also include accessing the first number of data items from the first portion at the sampling spacing, and placing the accessed first number of data items into a predetermined number of sub-blocks included within a permuted data sequence to be generated based on the received data sequence. The method may further include inserting each of the second number of data items into an end position of one of the sub-blocks within the permuted data sequence, and outputting the permuted data sequence.

    摘要翻译： 在通信系统中实现的无线通信方法可以包括接收要被置换的数据序列，以及获得与要被置换的数据序列相关联的信息，所述信息至少包含数据序列的长度和用于置换数据的采样间隔 序列。 该方法还可以包括识别具有第一数量的相邻数据项的数据序列的第一部分，以及具有第二数量的相邻数据项的数据序列的第二部分。 该方法还可以包括以采样间隔从第一部分访问第一数量的数据项，以及将所访问的第一数量的数据项放入包括在经置换的数据序列内的预定数量的子块中，以基于 接收数据序列。 该方法还可以包括将第二数量的数据项中的每一个插入置换的数据序列中的一个子块的结束位置，并输出置换的数据序列。

    Device and method for compensating timing offset
    9.
    发明授权
    Device and method for compensating timing offset 有权
    用于补偿定时偏移的装置和方法

    公开(公告)号：US08050366B2

    公开(公告)日：2011-11-01

    申请号：US12068507

    申请日：2008-02-07

    申请人： Chia-Tsung Lin ,  Yung-Yih Jian ,  Jen-Yuan Hsu ,  Pang-An Ting

    发明人： Chia-Tsung Lin ,  Yung-Yih Jian ,  Jen-Yuan Hsu ,  Pang-An Ting

    IPC分类号： H04L27/06 ,  H04L27/28 ,  H04B14/08

    CPC分类号： H04L27/2663 ,  H04L27/2665 ,  H04L27/2679

    摘要： A method and OFDM receiver for estimating timing offset are provided. The method includes receiving OFDM data to calculate frequency offset between a transmitter carrier frequency and a receiver carrier frequency, determining first timing offset based on the frequency offset, compensating the OFDM data with the first timing offset, estimating a residual common phase based on the compensated OFDM data, determining second timing offset based on the residual common phase, and compensating the OFDM data with the second timing offset, if the frame symbol index exceeds the predetermined data length.

    摘要翻译： 提供了一种用于估计定时偏移的方法和OFDM接收器。 该方法包括接收OFDM数据以计算发射机载波频率和接收机载波频率之间的频率偏移，基于频率偏移确定第一定时偏移，利用第一定时偏移补偿OFDM数据，基于经补偿的估计估计残差公共相位 OFDM数据，如果帧符号索引超过预定数据长度，则基于所述残差公共相位确定第二定时偏移量，并补偿具有第二定时偏移量的OFDM数据。

    Fractional carrier frequency offset estimator and method of estimating fractional carrier frequency offset between transmitter and receiver
    10.
    发明授权
    Fractional carrier frequency offset estimator and method of estimating fractional carrier frequency offset between transmitter and receiver 有权
    分数载波频率偏移估计器和估计发射机和接收机之间的载波频率偏移的方法

    公开(公告)号：US07809344B2

    公开(公告)日：2010-10-05

    申请号：US11785520

    申请日：2007-04-18

    申请人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Yung-Yih Jian ,  Pang-An Ting

    发明人： Jiun-Yo Lai ,  Jen-Yuan Hsu ,  Yung-Yih Jian ,  Pang-An Ting

    IPC分类号： H04B1/10 ,  H04B15/06

    CPC分类号： H04L27/266 ,  H04L27/2675

    摘要： Fractional carrier frequency offset estimators and related methods are disclosed. The invention may be particularly applied in WiMAX systems. The disclosed method of estimating fractional carrier frequency offset between a transmitter and a receiver includes calculating a first delay correlation based on a first and a second preamble repetitions included in a received signal, processing the phase of the first delay correlation to compensate for a phase rotation of the first delay correlation, and estimating the fractional carrier frequency offset by multiplying a processed phase value, generated after the step of processing the phase of the first delay correlation, by a predetermined value.

    摘要翻译： 公开了分数载波频率偏移估计量和相关方法。 本发明可以特别应用于WiMAX系统。 所公开的估计发射机和接收机之间的分数载波频率偏移的方法包括：基于包括在接收信号中的第一和第二前导码重复来计算第一延迟相关性，处理第一延迟相关的相位以补偿相位旋转 并且通过将处理所述第一延迟相关性的所述步骤之后产生的处理相位值乘以预定值来估计所述分数载波频率偏移。