公开(公告)号：US20080022191A1

公开(公告)日：2008-01-24

申请号：US11574792

申请日：2005-09-07

申请人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

发明人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

IPC分类号： H03M13/11

CPC分类号： H03M13/116 ,  H03M13/1148 ,  H03M13/353

摘要： A method of adaptive error correction coding includes processing data during a connection between a transmitting entity and a receiving entity, where the data is processed in accordance with a predetermined coding scheme. More particularly, processing data can include encoding one or more sequences received by an error correction encoder of the transmitting entity, or decoding one or more block codes received by an error correction decoder of the receiving entity. During the connection, then, the method can include selecting or receiving a selection of feedback code information. Thus, during at least a portion of the connection, the data processing can be switched to processing data in accordance with a parity-check coding technique based upon the feedback code information.

摘要翻译： 一种自适应纠错编码的方法包括在发送实体和接收实体之间的连接期间处理数据，其中根据预定编码方案对数据进行处理。 更具体地，处理数据可以包括编码由发送实体的纠错编码器接收的一个或多个序列，或者对由接收实体的纠错解码器接收的一个或多个块代码进行解码。 在连接期间，该方法可以包括选择或接收反馈代码信息的选择。 因此，在连接的至少一部分期间，可以基于反馈代码信息，根据奇偶校验编码技术将数据处理切换到处理数据。

公开(公告)号：US20070198905A1

公开(公告)日：2007-08-23

申请号：US11346184

申请日：2006-02-03

申请人： Tejas Bhatt ,  Amitabh Dixit ,  Victor Stolpman

发明人： Tejas Bhatt ,  Amitabh Dixit ,  Victor Stolpman

IPC分类号： G06F11/00 ,  H03M13/00

CPC分类号： H03M13/116 ,  H03M13/118

摘要： A transmitter for a communications network, the transmitter comprising: receiving means for receiving data; accessing means for accessing a parity check code; generating means for generating encoded data including an error correction codeword using the data and the parity check code; and transmitting means for transmitting the encoded data and the error correction codeword, wherein the parity check code comprises a parity check matrix which, in expanded form, can be represented by the matrix H having the general structure ( A B T C D E ) ⁢ ` wherein A, B, T, C, D and E represent sub-matrices, ET−1B being equal to the null matrix, the generating means comprising summing circuitry arranged to receive matrix elements ET−1A and C to generate a sum, and matrix multiplication circuitry for receiving the sum, a matrix element D−1 and a matrix sT comprising the data, the matrix multiplication circuitry being operable to generate a parity part p1T of the error correction codeword according to the formula p1T=−D−1(−ET−1A+C)sT.

公开(公告)号：US07689892B2

公开(公告)日：2010-03-30

申请号：US11574792

申请日：2005-09-07

申请人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

发明人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1148 ,  H03M13/353

摘要： A method of adaptive error correction coding includes processing data during a connection between a transmitting entity and a receiving entity, where the data is processed in accordance with a predetermined coding scheme. More particularly, processing data includes encoding one or more sequences received by an error correction encoder of the transmitting entity, or decoding one or more block codes received by an error correction decoder of the receiving entity. During the connection, then, the method includes selecting or receiving a selection of feedback code information. Thus, during at least a portion of the connection, the data processing is switched to processing data in accordance with a parity-check coding technique based upon the feedback code information.

摘要翻译： 一种自适应纠错编码的方法包括在发送实体和接收实体之间的连接期间处理数据，其中根据预定编码方案对数据进行处理。 更具体地，处理数据包括编码由发送实体的纠错编码器接收的一个或多个序列，或者解码由接收实体的纠错解码器接收的一个或多个块码。 在连接期间，该方法包括选择或接收反馈代码信息的选择。 因此，在连接的至少一部分期间，基于反馈代码信息，根据奇偶校验编码技术将数据处理切换到处理数据。

公开(公告)号：US20070067696A1

公开(公告)日：2007-03-22

申请号：US11222008

申请日：2005-09-08

申请人： Tejas Bhatt ,  Victor Stolpman ,  Dennis McCain

发明人： Tejas Bhatt ,  Victor Stolpman ,  Dennis McCain

IPC分类号： H03M13/00

CPC分类号： H03M13/271 ,  H03M13/296

摘要： A system, transmitter, receiver, method, and computer program product are provided in which a plurality of structured interleavers permute data bits arranged in a data bit matrix for Zigzag encoding. For each interleaver, the data bits in each column of the data bit matrix are cyclically shifted, with the amount of the shift being predefined and different for each column. In addition to the cycle shift, each column may be bit reverse ordered, and entire columns may be swapped. The interleaved data bit matrix may then be encoded using a Zigzag encoder to generate parity bits that may be transmitted, along with the data bits, from a transmitter to a receiver where the data may be iteratively decoded.

摘要翻译： 提供了一种系统，发射机，接收机，方法和计算机程序产品，其中多个结构化交织器将配置在数据位矩阵中的数据位置换为Z字形编码。 对于每个交织器，数据位矩阵的每列中的数据位被循环移位，其中移位量预定义并且对于每列是不同的。 除了循环移位之外，每一列都可以是反向排序的，并且整个列可以被交换。 然后可以使用Zigzag编码器对交织的数据位矩阵进行编码，以产生可以与数据比特一起从发射机发送到可以迭代地解码数据的接收机的奇偶校验位。

公开(公告)号：US20070089016A1

公开(公告)日：2007-04-19

申请号：US11253207

申请日：2005-10-18

申请人： Tejas Bhatt ,  Vishwas Sundaramurthy ,  Victor Stolpman ,  Dennis McCain

发明人： Tejas Bhatt ,  Vishwas Sundaramurthy ,  Victor Stolpman ,  Dennis McCain

IPC分类号： H03M13/00

CPC分类号： H03M13/1145 ,  H03M13/1111 ,  H03M13/1117 ,  H03M13/1122 ,  H03M13/1131

摘要： An error correction decoder for block serial pipelined layered decoding of block codes includes primary and mirror memories that are each capable of storing log-likelihood ratios (LLRs) for one or more iterations of an iterative decoding technique. The decoder also includes a plurality of elements capable of processing, for one or more iterations, one or more layers of a parity-check matrix. The elements include an iterative decoder element capable of calculating, for one or more iterations or layers, a LLR adjustment based upon the LLR for a previous iteration/layer, the LLR for the previous iteration/layer being read from the primary memory. The decoder further includes a summation element capable of reading the LLR for the previous iteration/layer from the mirror memory, and calculating the LLR for the iteration/layer based upon the LLR adjustment for the iteration/layer and the previous iteration/layer LLR for the previous iteration/layer.

摘要翻译： 用于块码的块串行流水线分层解码的纠错解码器包括主存储器和镜像存储器，每个存储器能够存储用于迭代解码技术的一次或多次迭代的对数似然比（LLR）。 解码器还包括能够对一个或多个迭代处理奇偶校验矩阵的一个或多个层的多个元件。 元素包括迭代解码器元件，其能够针对一个或多个迭代或层来计算基于先前迭代/层的LLR的LLR调整，从主存储器读取先前迭代/层的LLR。 解码器还包括能够从镜像存储器读取先前迭代/层的LLR并且基于迭代/层和先前的迭代/层LLR的LLR调整来计算迭代/层的LLR的求和元素，用于 以前的迭代/层。

公开(公告)号：US07757150B2

公开(公告)日：2010-07-13

申请号：US11573620

申请日：2005-08-12

申请人： Victor Stolpman

发明人： Victor Stolpman

IPC分类号： H03M13/00

CPC分类号： H03M13/1162 ,  H03M13/033 ,  H03M13/116 ,  H03M13/118 ,  H03M13/6362 ,  H03M13/6393 ,  H03M13/6527 ,  H03M13/6544

摘要： A method of constructing a puncture sequence includes providing a seed puncture sequence including a plurality of elements. The elements of the seed puncture sequence are based upon non-zero elements of a plurality of columns of a parity-check matrix having a column dimension and a row dimension. In this regard, the parity-check matrix defines an error correction code, and has been constructed based upon a seed parity-check matrix derived from an edge ensemble. After providing the seed puncture sequence, a variable node-puncture sequence can be constructed based thereupon. The variable node-puncture sequence, then, corresponds to a puncture sequence configured for processing an error correction code.

摘要翻译： 构建穿刺序列的方法包括提供包括多个元素的种子穿刺序列。 种子穿刺序列的元素基于具有列维度和行维度的奇偶校验矩阵的多个列的非零元素。 在这方面，奇偶校验矩阵定义了纠错码，并且已经基于从边缘集合导出的种子奇偶校验矩阵来构造。 在提供种子穿刺序列之后，可以基于此构建可变节点穿刺序列。 然后，可变节点穿刺序列对应于配置用于处理纠错码的穿孔序列。

公开(公告)号：US20080256426A1

公开(公告)日：2008-10-16

申请号：US11667675

申请日：2005-11-10

申请人： Anthony Reid ,  Kyeong Jim Kim ,  Victor Stolpman

发明人： Anthony Reid ,  Kyeong Jim Kim ,  Victor Stolpman

IPC分类号： H03M13/11

CPC分类号： H03M13/1102 ,  H03M13/31

摘要： A low density parity check code is generated by defining first a framework combining symbol detection and low density parity check decoding. Probabilistic information describing multiple-input-multiple-output channels is defined, and a low density parity check code is generated based on said framework and said probabilistic information describing multiple-input-multiple-output channels.

摘要翻译： 通过首先定义组合符号检测和低密度奇偶校验解码的框架来生成低密度奇偶校验码。 定义描述多输入多输出通道的概率信息，并且基于所述框架生成低密度奇偶校验码，并且描述描述多输入多输出通道的概率信息。

公开(公告)号：US20070030825A1

公开(公告)日：2007-02-08

申请号：US11196778

申请日：2005-08-03

申请人： Pirjo Pasanen ,  Olav Tirkkonnen ,  Victor Stolpman ,  Mihai Ionescu ,  John Terry

发明人： Pirjo Pasanen ,  Olav Tirkkonnen ,  Victor Stolpman ,  Mihai Ionescu ,  John Terry

IPC分类号： H04Q7/00

CPC分类号： H04L5/006 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0046

摘要： Apparatus, and an associated method, for allocating data to communication channels of a multiple-input communication system and to select power levels at which the data is caused to be communicated upon the communication channels. Data allocation is made responsive to communication quality indications that identify communication conditions on the different ones of the channels. Data allocation and power level allocation is made to achieve best a selected performance parameter.

摘要翻译： 用于将数据分配给多输入通信系统的通信信道的装置和相关方法，以及选择使数据在通信信道上进行通信的功率电平。 数据分配响应于识别不同信道上的通信条件的通信质量指示。 进行数据分配和功率电平分配以获得最佳选择的性能参数。

公开(公告)号：US20060153309A1

公开(公告)日：2006-07-13

申请号：US11035297

申请日：2005-01-12

申请人： Clive Tang ,  Victor Stolpman

发明人： Clive Tang ,  Victor Stolpman

IPC分类号： H04K1/10

CPC分类号： H04L27/2608

摘要： In one aspect thereof this invention provides a method to increase data throughput in an Orthogonal Frequency Division Multiplex (OFDM) wireless communications system. The method includes modeling data throughput as a function of received Signal to Noise Ratio (SNR) with a sigmoid function to produce a throughput curve characterized as having a lower knee region and an upper knee region; and performing a gradient ascent search along the throughput curve by varying the power of a plurality of sub-carriers so as to remove power from any sub-carrier having a received SNR to the left of the lower knee region, and to re-allocate the removed power to sub-carriers having a received SNR to the right of the lower knee region.

摘要翻译： 在其一方面，本发明提供了一种增加正交频分复用（OFDM）无线通信系统中的数据吞吐量的方法。 该方法包括以S形函数建模作为接收到的信噪比（SNR）的函数的数据吞吐量，以产生特征为具有较低膝盖区域和上膝部区域的吞吐量曲线; 以及通过改变多个子载波的功率沿着吞吐量曲线执行梯度上升搜索，以便从具有接收到的SNR的任何副载波的功率从下膝盖区域的左侧移除，并重新分配 将具有接收到的SNR的子载波的功率移除到下膝部区域的右侧。

公开(公告)号：US20060017613A1

公开(公告)日：2006-01-26

申请号：US10888136

申请日：2004-07-08

申请人： Jae Son ,  Jan Olivier ,  Victor Stolpman ,  Tony Reid

发明人： Jae Son ,  Jan Olivier ,  Victor Stolpman ,  Tony Reid

IPC分类号： H01Q3/22

CPC分类号： H04L1/06 ,  H04L27/265

摘要： Fast fading in cellular systems causes time variation of the Channel Impulse Response (CIR) resulting in significant performance degradation that is reduced by adding a pulse train to the transmitted data symbols and estimating the CIR by averaging the symbols as they vary from one OFDM symbol to another within the physical data frame (or packet).