公开(公告)号：US20100122139A1

公开(公告)日：2010-05-13

申请号：US12613059

申请日：2009-11-05

申请人： Cheng-Kang WANG ,  Hou-Wei LIN ,  Chia-Chun HUNG

发明人： Cheng-Kang WANG ,  Hou-Wei LIN ,  Chia-Chun HUNG

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1122 ,  H03M13/112 ,  H04L1/0045 ,  H04L1/0057

摘要： A parity-check-code decoder is adapted for receiving a channel quality ratio and at least (N) bits that are to be decoded. The parity-check-code decoder treats each of the bits as a bit node, and includes: a verifying circuit that multiplies (N) bit nodes by a matrix to obtain (N-K) check nodes; a reliability-generating circuit that generates a reliability index that serves as an extrinsic check index for each of the bit nodes to transmit to the check nodes; a bit exchange circuit that generates an extrinsic bit index for each of the check nodes to transmit to the bit nodes; a check-exchange circuit that updates a plurality of the extrinsic check indices based on the extrinsic bit indices for the bit nodes to transmit to the check nodes; and a reliability-updating circuit that updates the reliability index of and determines an updated value for each of the bit nodes.

摘要翻译： 奇偶校验码解码器适于接收信道质量比和要被解码的至少（N）个比特。 奇偶校验码解码器将每个比特作为比特节点处理，并且包括：验证电路，用（N）比特节点乘以矩阵来获得（N-K）个校验节点; 可靠性产生电路，其生成作为用于每个位节点的外部检查指标的可靠性指标，以向所述校验节点发送; 一个位交换电路，用于为每个校验节点产生一个外在比特索引，以传送给比特节点; 检查交换电路，其基于所述比特节点的所述外在比特索引更新所述外部校验索引，以向所述校验节点发送; 以及可靠性更新电路，其更新每个位节点的可靠性指标并确定更新的值。

公开(公告)号：US20100125769A1

公开(公告)日：2010-05-20

申请号：US12617212

申请日：2009-11-12

申请人： Cheng-Kang WANG ,  Chia-Chun HUNG

发明人： Cheng-Kang WANG ,  Chia-Chun HUNG

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L1/0052 ,  H03M13/1105 ,  H03M13/6577 ,  H03M13/658 ,  H04L1/0057

摘要： A parity-check-code decoder includes: a verifying device that multiplies (N) bit nodes by a matrix provided with (N) columns so as to obtain a plurality of check nodes; a reliability generator that generates a reliability index for each of the bit nodes in accordance with a channel; a reliability-updating device that uses the bit nodes and the check nodes to exchange message iteratively, and following each iteration, updates (N) exchange results corresponding to the (N) columns; and a recording controller that includes a separator, a quantizing determiner and a quantizer. The separator divides the matrix into at least one column group based on the characterizing signals. The quantizing determiner determines a shift signal for each column group based on the characterizing signals. The quantizer quantizes the characterizing signals according to the shift signals for subsequent output.

摘要翻译： 奇偶校验码解码器包括：验证装置，用（N）列提供的矩阵对（N）个比特节点进行乘法，以获得多个校验节点; 可靠性发生器，其根据信道生成每个位节点的可靠性指标; 使用比特节点和校验节点迭代地交换消息的可靠性更新装置，并且在每次迭代之后，更新（N）对应于（N）列的交换结果; 以及包括分离器，量化确定器和量化器的记录控制器。 分离器基于特征信号将矩阵划分成至少一个列组。 量化确定器基于特征信号确定每个列组的移位信号。 量化器根据用于后续输出的移位信号量化特征信号。

公开(公告)号：US20070236370A1

公开(公告)日：2007-10-11

申请号：US11682846

申请日：2007-03-06

申请人： Chun-Ming Cho ,  Cheng-Kang WANG ,  Liang-Hui LEE ,  Kuang-Yu Yen

发明人： Chun-Ming Cho ,  Cheng-Kang WANG ,  Liang-Hui LEE ,  Kuang-Yu Yen

IPC分类号： H03M13/00 ,  G06K9/36

CPC分类号： H04H40/18 ,  H03M13/45

摘要： The present invention discloses a decoding device. The decoding device includes a scaling unit for adjusting a received signal according to a scaling coefficient to generate a scaled signal; a quantizer coupled to the scaling unit for generating a quantized signal by quantizing the scaled signal; a soft decision decoder coupled to the quantizer for decoding the quantized signal to generate a decoded signal; and a scaling coefficient generating unit coupled to the scaling unit for generating the scaling coefficient according to a system information of the decoding device.

摘要翻译： 本发明公开了一种解码装置。 解码装置包括：缩放单元，用于根据缩放系数调整接收信号，以产生缩放信号; 量化器，耦合到缩放单元，用于通过量化缩放信号来产生量化信号; 耦合到量化器的软判决解码器，用于解码量化信号以产生解码信号; 以及缩放系数生成单元，其耦合到缩放单元，用于根据解码装置的系统信息生成缩放系数。

公开(公告)号：US20050265466A1

公开(公告)日：2005-12-01

申请号：US10908634

申请日：2005-05-20

申请人： Cheng-Kang WANG

发明人： Cheng-Kang WANG

IPC分类号： H04K1/10 ,  H04L25/02 ,  H04L27/26

CPC分类号： H04L25/0232 ,  H04L27/2647

摘要： An adaptive channel estimation method utilized in a multi-carrier communication system. The communication system transmits a symbol through a plurality of subchannels. The plurality of subchannels includes a plurality of pilot signal subchannels and a plurality of data signal subchannels. The pilot signal subchannels transmit a plurality of pilot signals of the symbol; the data signal subchannels transmit a plurality of data signals of the symbol. The method includes: categorizing each of the subchannels according to the relative position of each of the subchannels with respect to the pilot signal subchannels; determining channel responses of at least one of the pilot signal subchannels; and estimating channel responses of the data signal subchannels based on the channel responses of at least one of the pilot signal subchannels.

摘要翻译： 一种在多载波通信系统中使用的自适应信道估计方法。 通信系统通过多个子信道发送符号。 多个子信道包括多个导频信号子信道和多个数据信号子信道。 导频信号子信道发送符号的多个导频信号; 数据信号子信道发送符号的多个数据信号。 该方法包括：根据每个子信道相对于导频信号子信道的相对位置对每个子信道进行分类; 确定所述导频信号子信道中的至少一个的信道响应; 以及基于所述导频信号子信道中的至少一个的信道响应来估计所述数据信号子信道的信道响应。