公开(公告)号：US08559540B2

公开(公告)日：2013-10-15

申请号：US12904622

申请日：2010-10-14

申请人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

发明人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

IPC分类号： H04L5/12 ,  H04L27/06 ,  H03M13/03

CPC分类号： H03M13/6525 ,  H03M13/1102 ,  H03M13/3905 ,  H04L1/06 ,  H04L25/03216 ,  H04L25/03891

摘要： An apparatus for trellis-based detection in a communication system including a processor and memory having computer program code configured to construct a trellis representing a transmitted signal formed from a plurality of symbols, each having a constellation size, transmitted by a number of transmit antennas, and form a log likelihood ratio at nodes of the trellis as a log-sum of a number of exponential terms corresponding to a hypothesized transmitted bit value of the plurality of symbols. The number of exponential terms is limited by a number of most likely paths of the trellis extending from each node of the trellis and the constellation size. The processor and memory including computer program code are further configured to form a list at each node of the trellis of a size limited to the number of the most likely paths of the trellis extending from each node of the trellis.

摘要翻译： 一种用于包括处理器和存储器的通信系统中的基于网格检测的装置，所述计算机程序代码被配置为构造表示从多个符号形成的发送信号的网格，所述多个符号具有由多个发送天线发送的星座大小， 并且在网格的节点处形成对数似然比，作为对应于多个符号的假设的发送比特值的指数项的数量的对数和。 指数项的数量受到从网格的每个节点和星座大小延伸的网格的最可能路径的数量的限制。 包括计算机程序代码的处理器和存储器还被配置为在格架的每个节点处形成列表，其大小限于从网格的每个节点延伸的网格的最可能路径的数量。

公开(公告)号：US08477862B2

公开(公告)日：2013-07-02

申请号：US12959007

申请日：2010-12-02

申请人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

发明人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

IPC分类号： H04L5/12

CPC分类号： H04L25/03216 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0055 ,  H04L25/03171 ,  H04L2025/03426

摘要： An apparatus for trellis-based detection in a communication system including a processor and memory having computer program code configured to construct a trellis representing a transmitted signal formed from a plurality of symbols, each having a constellation size, transmitted by a number of transmit antennas, and form a log likelihood ratio at nodes of the trellis as a log-sum of a number of exponential terms including a priori information corresponding to a hypothesized transmitted bit value of the plurality of symbols. The number of exponential terms is limited by a number of most likely paths of the trellis extending from each node of the trellis and the constellation size. The processor and memory including computer program code are configured to form a list at each node of the trellis of a size limited to the number of the most likely paths of the trellis extending from each node.

摘要翻译： 一种用于包括处理器和存储器的通信系统中的基于网格检测的装置，所述计算机程序代码被配置为构造表示从多个符号形成的发送信号的网格，所述多个符号具有由多个发送天线发送的星座大小， 并且在网格的节点处形成对数似然比，作为包括与多个符号的假定的发送比特值相对应的先验信息的指数项的数量的对数和。 指数项的数量受到从网格的每个节点和星座大小延伸的网格的最可能路径的数量的限制。 包括计算机程序代码的处理器和存储器被配置为在格局的每个节点处形成列表，其大小限于从每个节点延伸的网格的最可能路径的数量。

公开(公告)号：US20120093249A1

公开(公告)日：2012-04-19

申请号：US12959007

申请日：2010-12-02

申请人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

发明人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

IPC分类号： H04L23/02

CPC分类号： H04L25/03216 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0055 ,  H04L25/03171 ,  H04L2025/03426

摘要： An apparatus for trellis-based detection in a communication system including a processor and memory having computer program code configured to construct a trellis representing a transmitted signal formed from a plurality of symbols, each having a constellation size, transmitted by a number of transmit antennas, and form a log likelihood ratio at nodes of the trellis as a log-sum of a number of exponential terms including a priori information corresponding to a hypothesized transmitted bit value of the plurality of symbols. The number of exponential terms is limited by a number of most likely paths of the trellis extending from each node of the trellis and the constellation size. The processor and memory including computer program code are configured to form a list at each node of the trellis of a size limited to the number of the most likely paths of the trellis extending from each node.

摘要翻译： 一种用于包括处理器和存储器的通信系统中的基于网格检测的装置，所述计算机程序代码被配置为构造表示从多个符号形成的发送信号的网格，所述多个符号具有由多个发送天线发送的星座大小， 并且在网格的节点处形成对数似然比，作为包括与多个符号的假定的发送比特值相对应的先验信息的指数项的数量的对数和。 指数项的数量受到从网格的每个节点和星座大小延伸的网格的最可能路径的数量的限制。 包括计算机程序代码的处理器和存储器被配置为在格局的每个节点处形成列表，其大小限于从每个节点延伸的网格的最可能路径的数量。

公开(公告)号：US20120093266A1

公开(公告)日：2012-04-19

申请号：US12904622

申请日：2010-10-14

申请人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

发明人： Yang Sun ,  Joseph R. Cavallaro ,  Jorma Lilleberg

IPC分类号： H03D1/00

CPC分类号： H03M13/6525 ,  H03M13/1102 ,  H03M13/3905 ,  H04L1/06 ,  H04L25/03216 ,  H04L25/03891

摘要： An apparatus for trellis-based detection in a communication system including a processor and memory having computer program code configured to construct a trellis representing a transmitted signal formed from a plurality of symbols, each having a constellation size, transmitted by a number of transmit antennas, and form a log likelihood ratio at nodes of the trellis as a log-sum of a number of exponential terms corresponding to a hypothesized transmitted bit value of the plurality of symbols. The number of exponential terms is limited by a number of most likely paths of the trellis extending from each node of the trellis and the constellation size. The processor and memory including computer program code are further configured to form a list at each node of the trellis of a size limited to the number of the most likely paths of the trellis extending from each node of the trellis.

摘要翻译： 一种用于包括处理器和存储器的通信系统中的基于网格检测的装置，所述计算机程序代码被配置为构造表示从多个符号形成的发送信号的网格，所述多个符号具有由多个发送天线发送的星座大小， 并且在网格的节点处形成对数似然比，作为对应于多个符号的假设的发送比特值的指数项的数量的对数和。 指数项的数量受到从网格的每个节点和星座大小延伸的网格的最可能路径的数量的限制。 包括计算机程序代码的处理器和存储器还被配置为在格架的每个节点处形成列表，其大小限于从网格的每个节点延伸的网格的最可能路径的数量。

公开(公告)号：US20100303176A1

公开(公告)日：2010-12-02

申请号：US12475755

申请日：2009-06-01

申请人： Jorma Olavi Lilleberg ,  Yang Sun ,  Joseph R. Cavallaro

发明人： Jorma Olavi Lilleberg ,  Yang Sun ,  Joseph R. Cavallaro

IPC分类号： H04L27/06

CPC分类号： H04L25/03203 ,  H04L25/03318 ,  H04L2025/03426

摘要： Methods and apparatuses are provided for MIMO detection. A method may include considering a symbol vector received over MIMO system. The method may further include generating a list comprising a predefined number of candidate transmit symbol vectors based at least in part upon the received symbol vector using a trellis comprising a plurality of nodes that apply distributed list decoding to generate the list, wherein the list of the predefined number of candidate transmit symbol vectors comprises the predefined number of candidate transmit symbol vectors derived from the set of all possible trellis paths as determined based at least in part upon the respective cumulative trellis path weights. Corresponding apparatuses are also provided.

摘要翻译： 提供了用于MIMO检测的方法和装置。 一种方法可以包括考虑通过MIMO系统接收的符号向量。 该方法可以进一步包括至少部分地基于所接收的符号向量来生成包括预定数量的候选发射符号向量的列表，所述符号向量使用包括多个节点的网格，所述节点应用分布式列表解码以生成所述列表，其中， 预定数量的候选发送符号向量包括从至少部分地基于相应的累积网格路径权重确定的所有可能网格路径的集合导出的预定数量的候选发射符号向量。 还提供了相应的装置。

公开(公告)号：US08621160B2

公开(公告)日：2013-12-31

申请号：US13329065

申请日：2011-12-16

申请人： Guohui Wang ,  Yang Sun ,  Joseph R. Cavallaro ,  Yuanbin Guo

发明人： Guohui Wang ,  Yang Sun ,  Joseph R. Cavallaro ,  Yuanbin Guo

IPC分类号： G06F12/06 ,  G06F13/376

CPC分类号： H03M13/2957 ,  H03M13/395 ,  H03M13/3972 ,  H03M13/6561 ,  H03M13/6566

摘要： A memory control unit of a turbo code decoder includes a buffer having a plurality of storage slots, a buffer control operatively coupled to the buffer, a router operatively coupled to the buffer control and to a plurality of data sources, and a conflict detection unit operatively coupled to the router, to the buffer control, and to the plurality of data sources. The buffer temporarily stores information intended for storage in a memory bank. The buffer control determines a number of available storage slots in the buffer. The router routes data from the data sources to the buffer control. The conflict detection unit initiates a temporary halt of some of the data sources when the number of available storage slots is insufficient to store all of the data from data sources attempting to access the memory bank.

摘要翻译： turbo码解码器的存储器控​​制单元包括具有多个存储槽的缓冲器，可操作地耦合到缓冲器的缓冲器控制器，可操作地耦合到缓冲器控制和多个数据源的路由器，以及可操作地与冲突检测单元 耦合到路由器，到缓冲器控制和多个数据源。 缓冲器临时存储用于存储在存储体中的信息。 缓冲器控制确定缓冲器中可用的存储槽数。 路由器将数据源从数据源路由到缓冲区控制。 当可用存储时隙的数量不足以存储尝试访问存储体的数据源的所有数据时，冲突检测单元发起暂时停止某些数据源。

公开(公告)号：US20120166742A1

公开(公告)日：2012-06-28

申请号：US13329065

申请日：2011-12-16

申请人： Guohui Wang ,  Yang Sun ,  Joseph R. Cavallaro ,  Yuanbin Guo

发明人： Guohui Wang ,  Yang Sun ,  Joseph R. Cavallaro ,  Yuanbin Guo

IPC分类号： G06F12/00

CPC分类号： H03M13/2957 ,  H03M13/395 ,  H03M13/3972 ,  H03M13/6561 ,  H03M13/6566

摘要： A memory control unit of a turbo code decoder includes a buffer having a plurality of storage slots, a buffer control operatively coupled to the buffer, a router operatively coupled to the buffer control and to a plurality of data sources, and a conflict detection unit operatively coupled to the router, to the buffer control, and to the plurality of data sources. The buffer temporarily stores information intended for storage in a memory bank. The buffer control determines a number of available storage slots in the buffer. The router routes data from the data sources to the buffer control. The conflict detection unit initiates a temporary halt of some of the data sources when the number of available storage slots is insufficient to store all of the data from data sources attempting to access the memory bank.

摘要翻译： turbo码解码器的存储器控​​制单元包括具有多个存储槽的缓冲器，可操作地耦合到缓冲器的缓冲器控制器，可操作地耦合到缓冲器控制和多个数据源的路由器，以及可操作地与冲突检测单元 耦合到路由器，到缓冲器控制和多个数据源。 缓冲器临时存储用于存储在存储体中的信息。 缓冲器控制确定缓冲器中可用的存储槽数。 路由器将数据源从数据源路由到缓冲区控制。 当可用存储时隙的数量不足以存储尝试访问存储体的数据源的所有数据时，冲突检测单元发起暂时停止某些数据源。

公开(公告)号：US08767849B2

公开(公告)日：2014-07-01

申请号：US13405134

申请日：2012-02-24

申请人： Bei Yin ,  Kiarash Amiri ,  Joseph R. Cavallaro ,  Yuanbin Guo

发明人： Bei Yin ,  Kiarash Amiri ,  Joseph R. Cavallaro ,  Yuanbin Guo

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L25/03 ,  H04J11/00 ,  H04B1/7107

CPC分类号： H04J11/004 ,  H04B1/71072 ,  H04L25/03159

摘要： A wireless receiver is constructed to equalize a time-domain received signal, detect a plurality of symbols of the equalized time-domain received signal, and perform interference cancellation on the time-domain received signal. The interference cancellation can be performed using a partial result produced by an IDFT, and may use only neighboring symbols in a detected plurality of symbols. The resulting wireless receiver can be constructed to operate efficiently under a plurality of wireless standards.

摘要翻译： 构造无线接收机以均衡时域接收信号，检测均衡的时域接收信号的多个符号，并对时域接收信号执行干扰消除。 可以使用由IDFT产生的部分结果来执行干扰消除，并且可以仅使用检测到的多个符号中的相邻符号。 所得到的无线接收机可被构造成在多种无线标准下有效地工作。

公开(公告)号：US20120240003A1

公开(公告)日：2012-09-20

申请号：US13479745

申请日：2012-05-24

申请人： Predrag Radosavljevic ,  Marjan Karkooti ,  Alexandre de Baynast ,  Joseph R. Cavallaro

发明人： Predrag Radosavljevic ,  Marjan Karkooti ,  Alexandre de Baynast ,  Joseph R. Cavallaro

IPC分类号： H03M13/11 ,  G06F11/10

CPC分类号： H03M13/1148 ,  H03M13/1137 ,  H03M13/114 ,  H03M13/6566

摘要： The invention relates to low density parity check decoding. A method for decoding an encoded data block is described. Encoded data block comprising data sub-blocks are stored. Decoding is performed in a pipelined manner using an irregular, block-structured parity check matrix, where at least two data sub-block matrices of the parity check matrix are read from and written in each of a plurality of clock cycles. The reading and writing of the data sub-blocks is evenly distributed between at least two area of a memory. The decoding is performed with shift values which eliminate cycles at or below a predetermined threshold length. An apparatus, computer program product and device are also described.

摘要翻译： 本发明涉及低密度奇偶校验解码。 描述用于解码编码数据块的方法。 存储包括数据子块的编码数据块。 使用不规则的块结构的奇偶校验矩阵以流水线方式执行解码，其中奇偶校验矩阵的至少两个数据子块矩阵从多个时钟周期中的每一个读出并写入。 数据子块的读取和写入被均匀分布在存储器的至少两个区域之间。 以等于或低于预定阈值长度的周期的移位值执行解码。 还描述了一种装置，计算机程序产品和装置。

公开(公告)号：US08059761B2

公开(公告)日：2011-11-15

申请号：US12170474

申请日：2008-07-10

申请人： Kiarash Amiri ,  Christopher H. Dick ,  Raghavendar Mysore Rao ,  Joseph R. Cavallaro

发明人： Kiarash Amiri ,  Christopher H. Dick ,  Raghavendar Mysore Rao ,  Joseph R. Cavallaro

IPC分类号： H04L27/06

CPC分类号： H04L25/03229 ,  H04L25/0246 ,  H04L25/03968

摘要： Circuits detect communications from multiple transmitting antennas to multiple receiving antennas. A respective first block for each non-initial transmitting antenna determines partial distances for pairings of a first candidate and a quadrature-phase amplitude. A respective second block for the initial transmitting antenna determines partial distances for combinations of phase amplitudes. A respective second block for each non-initial transmitting antenna determines partial distances for pairings of a second candidate and an in-phase amplitude. A respective first selector for each non-initial transmitting antenna selects the first candidates from the pairings for the respective second block having smaller partial distances. A respective second selector for each non-initial transmitting antenna selects the second candidates from the pairings for the respective first block having smaller partial distances. An identifier circuit selects a final candidate with a smaller partial distance from the pairings of the respective second block for the last transmitting antenna.

摘要翻译： 电路检测从多个发射天线到多个接收天线的通信。 每个非初始发射天线的相应的第一块确定用于第一候选和正交相位振幅的配对的部分距离。 用于初始发射天线的相应的第二块确定相位振幅的组合的部分距离。 每个非初始发射天线的相应的第二块确定第二候选的配对和同相幅度的部分距离。 每个非初始发射天线的相应的第一选择器从具有较小部分距离的相应第二块的配对中选择第一候选。 每个非初始发射天线的相应的第二选择器从具有较小部分距离的相应第一块的配对中选择第二候选。 标识符电路从最后发射天线的相应第二块的配对中选择具有较小部分距离的最终候选。