METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING INFORMATION IN A BROADCASTING/COMMUNICATION SYSTEM
    41.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING INFORMATION IN A BROADCASTING/COMMUNICATION SYSTEM 有权
    在广播/通信系统中发送和接收信息的方法和装置

    公开(公告)号:US20130055051A1

    公开(公告)日:2013-02-28

    申请号:US13599551

    申请日:2012-08-30

    IPC分类号: H03M13/27 G06F11/10 H03M13/15

    摘要: A method and apparatus are provided for transmitting and receiving information in a broadcasting/communication system. The method includes comparing a number of bits of an information word to be transmitted with a predetermined threshold value; if the number of bits of the information word is less than the predetermined threshold value, determining a first parameter pair; if the number of bits of the information word is not less than the predetermined threshold value, determining a second parameter pair; determining a number of bits to be punctured based on one of the first parameter pair and the second parameter pair; and puncturing the determined number of bits to be punctured, with respect to parity bits of a codeword generated by encoding the information word.

    摘要翻译: 提供了一种用于在广播/通信系统中发送和接收信息的方法和装置。 该方法包括将要发送的信息字的位数与预定阈值进行比较; 如果信息字的位数小于预定阈值,则确定第一参数对; 如果信息字的位数不小于预定阈值,则确定第二参数对; 基于所述第一参数对和所述第二参数对中的一个来确定要被删截的比特数; 以及针对通过对信息字进行编码而生成的码字的奇偶校验位,对要被删截的确定位数进行穿孔。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A BROADCASTING/COMMUNICATION SYSTEM
    42.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A BROADCASTING/COMMUNICATION SYSTEM 有权
    用于在广播/通信系统中发送和接收控制信息的方法和装置

    公开(公告)号:US20120243600A1

    公开(公告)日:2012-09-27

    申请号:US13430119

    申请日:2012-03-26

    IPC分类号: H04B1/66

    CPC分类号: H04L1/0057 H04L1/0072

    摘要: A method and an apparatus for encoding, transmitting, and receiving signaling information in a broadcasting/communication system are provided. The method includes generating the signaling information which comprises a plurality of pieces; determining a number of coded blocks to which the signaling information is to be encoded, based on a number of bits of the signaling information and a number of encoder input information bit; segmenting each piece of the signaling information based on the number of the coded blocks; constructing input information bits of each coded block to include segmented parts of each piece of the signaling information; encoding the input information bits to each coded block; and transmitting each coded block.

    摘要翻译: 提供了一种用于在广播/通信系统中编码,发送和接收信令信息的方法和装置。 该方法包括生成包括多个片段的信令信息; 基于所述信令信息的比特数和编码器输入信息比特的数目,确定要编码所述信令信息的编码块数; 基于编码块的数量来分割每条信令信息; 构建每个编码块的输入信息比特,以包括每条信令信息的分段部分; 将输入信息比特编码到每个编码块; 并发送每个编码块。

    Apparatus and method for channel encoding/decoding in communication system using variable-length LDPC codes
    43.
    发明授权
    Apparatus and method for channel encoding/decoding in communication system using variable-length LDPC codes 有权
    使用可变长度LDPC码的通信系统中的信道编码/解码装置和方法

    公开(公告)号:US08261152B2

    公开(公告)日:2012-09-04

    申请号:US12208316

    申请日:2008-09-10

    IPC分类号: G06F11/00

    摘要: A method and apparatus for generating Low-Density Parity Check (LDPC) codes of various block lengths from a structured LDPC code in a communication system is provided. To support various block lengths, predefined rules are applied to a parity check matrix of an LDPC code, and then shortening is selectively applied to the parity check matrix. Subsequently, if information data bits are input, the input data information bits are encoded into an LDPC codeword by using the parity check matrix according to a preset encoding scheme, and then the encoded LDPC codeword is transmitted after puncturing is selectively applied.

    摘要翻译: 提供了一种用于从通信系统中的结构化LDPC码生成各种块长度的低密度奇偶校验(LDPC)码的方法和装置。 为了支持各种块长度,将预定义的规则应用于LDPC码的奇偶校验矩阵,然后选择性地将缩短选择性地应用于奇偶校验矩阵。 随后,如果输入信息数据位,则通过使用根据预设编码方案的奇偶校验矩阵将输入数据信息比特编码为LDPC码字,然后选择性地应用穿孔后发送编码的LDPC码字。

    Apparatus and method for transmitting and receiving signal in a communication system
    44.
    发明授权
    Apparatus and method for transmitting and receiving signal in a communication system 有权
    在通信系统中发送和接收信号的装置和方法

    公开(公告)号:US08055987B2

    公开(公告)日:2011-11-08

    申请号:US12074890

    申请日:2008-03-06

    IPC分类号: G06F11/00

    摘要: An apparatus and method for transmitting and receiving a signal in a communication system are provided. The signal transmission apparatus generates a parity check matrix for an LDPC code in accordance with a code rate to be used and generates a codeword vector by encoding an information vector using the parity check matrix. When the code rate is a first code rate, the signal transmission apparatus generates a first parity check matrix as the parity check matrix for the LDPC code. When the code rate is the second code rate, the signal transmission apparatus generates a second parity check matrix supporting a second code rate lower than the first code rate by adding columns of a degree of 1 and columns of a degree of 2 to the first parity check matrix and generates the second parity check matrix as the parity check matrix for the LDPC code.

    摘要翻译: 提供了一种用于在通信系统中发送和接收信号的装置和方法。 信号发送装置根据要使用的码率生成用于LDPC码的奇偶校验矩阵,并且通过使用奇偶校验矩阵对信息向量进行编码来生成码字向量。 当码率是第一码率时,信号发送装置生成第一奇偶校验矩阵作为LDPC码的奇偶校验矩阵。 当码率是第二码率时,信号发送装置通过将1的度数和2度的列的列相加于第一奇偶校验码来生成支持低于第一码率的第二码率的第二奇偶校验矩阵 生成第二奇偶校验矩阵作为LDPC码的奇偶校验矩阵。

    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system
    46.
    发明授权
    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权
    在移动通信系统中对低密度奇偶校验码进行编码/解码的装置和方法

    公开(公告)号:US07962828B2

    公开(公告)日:2011-06-14

    申请号:US11831688

    申请日:2007-07-31

    IPC分类号: H03M13/00

    摘要: A method for generating a parity check matrix of a block LDPC code. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

    摘要翻译: 一种用于产生块LDPC码的奇偶校验矩阵的方法。 奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。 该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块,对应于第一奇偶校验部分的块,以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵,从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中,使得最小周期长度最大化,权重值在块LDPC码的因子图上是不规则的。

    Apparatus and method for transmitting/receiving signal in a communication system using low density parity check code
    47.
    发明授权
    Apparatus and method for transmitting/receiving signal in a communication system using low density parity check code 有权
    在使用低密度奇偶校验码的通信系统中发送/接收信号的装置和方法

    公开(公告)号:US07890844B2

    公开(公告)日:2011-02-15

    申请号:US11528044

    申请日:2006-09-27

    IPC分类号: H03M13/00

    摘要: An apparatus is provided for transmitting a signal in a communication system using a Low Density Parity Check (LDPC) code. A controller determines a number of ‘0’s to be inserted in information data according to a first coding rate to be applied when generating the information data into an LDPC code, and determines the number of ‘0’s to be removed from the LDPC code. A ‘0’ inserter inserts ‘0s’ in the information data according to control of the controller. An LDPC encoder generates the LDPC code by encoding the ‘0’-inserted signal according to a first parity check matrix. A ‘0’ remover removes the inserted ‘0’s from the LDPC code.

    摘要翻译: 提供了一种用于在使用低密度奇偶校验(LDPC)码的通信系统中发送信号的装置。 控制器根据在将信息数据生成为LDPC码时应用的第一编码率来确定要插入到信息数据中的“0”数,并且确定要从LDPC码中移除的“0”的数目。 “0”插入器根据控制器的控制在信息数据中插入“0”。 LDPC编码器通过根据第一奇偶校验矩阵对“0”插入的信号进行编码来生成LDPC码。 “0”去除器从LDPC码中移除插入的0。

    METHOD AND SYSTEM FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN BROADCASTING COMMUNICATION SYSTEM
    48.
    发明申请
    METHOD AND SYSTEM FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN BROADCASTING COMMUNICATION SYSTEM 有权
    广播通信系统中发送和接收控制信息的方法和系统

    公开(公告)号:US20110026447A1

    公开(公告)日:2011-02-03

    申请号:US12812178

    申请日:2009-01-08

    IPC分类号: H04B7/00

    CPC分类号: H04H60/73

    摘要: Disclosed is a method and an apparatus for transmitting and receiving control information for receiving a service in a broadcast communication system. The method includes: inserting first control information for receiving at least one different service at a next frame in each of multiple service data pieces of a current frame; and transmitting a frame including the first control information through a wireless network. By the method, it is possible to efficiently transmit and receive a frame, which includes multiple services configured through a combination of one or more RFs, thereby enabling rapid receiving of a switched service in the case of service switching.

    摘要翻译: 公开了一种用于在广播通信系统中发送和接收用于接收服务的控制信息的方法和装置。 该方法包括:在当前帧的多个服务数据段中的每一个中的下一帧处插入用于接收至少一个不同服务的第一控制信息; 以及通过无线网络发送包括所述第一控制信息的帧。 通过该方法,可以有效地发送和接收包括通过一个或多个RF的组合配置的多个服务的帧,从而在服务切换的情况下能够快速接收交换服务。

    Method and apparatus for receiving data in a communication system
    49.
    发明授权
    Method and apparatus for receiving data in a communication system 有权
    用于在通信系统中接收数据的方法和装置

    公开(公告)号:US07836373B2

    公开(公告)日:2010-11-16

    申请号:US11603377

    申请日:2006-11-21

    IPC分类号: H03M13/45 H04L1/16

    摘要: A method and apparatus is provided for receiving data in a receiver of a communication system. In the receiver, a first calculator calculates a Log Likelihood Ratio (LLR) value of data transmitted from a transmitter, a decoder performs iterative decoding on the transmitted data using the LLR value calculated by the first calculator. A second calculator determines whether there is an error in the decoded data by calculating an error of the data decoded by the decoder. A storage stores an LLR value of the decoded data according to the determination result of the second calculator. An adder adds up the LLR value calculated by the first calculator and the LLR value stored in the storage. A controller performs a control operation such that if the data transmitted from the transmitter is retransmitted data, the decoder performs iterative decoding using the LLR value added by the adder, and if the data transmitted from the transmitter is not retransmitted data, the decoder performs iterative decoding using the LLR value calculated by the first calculator.

    摘要翻译: 提供了一种用于在通信系统的接收机中接收数据的方法和装置。 在接收机中,第一计算器计算从发送器发送的数据的对数似然比(LLR)值,解码器使用由第一计算器计算出的LLR值对所发送的数据执行迭代解码。 第二计算器通过计算由解码器解码的数据的误差来确定解码数据中是否存在错误。 存储器根据第二计算器的确定结果存储解码数据的LLR值。 加法器将由第一计算器计算的LLR值和存储在存储器中的LLR值相加。 控制器执行控制操作,使得如果从发送器发送的数据是重发数据,则解码器使用由加法器添加的LLR值来执行迭代解码,并且如果从发送器发送的数据不是重传数据,则解码器执行迭代 使用由第一计算器计算的LLR值进行解码。

    Apparatus and method for encoding and decoding a low density parity check code with maximum error correction and error detection capability
    50.
    发明授权
    Apparatus and method for encoding and decoding a low density parity check code with maximum error correction and error detection capability 有权
    用于对具有最大误差校正和误差检测能力的低密度奇偶校验码进行编码和解码的装置和方法

    公开(公告)号:US07774678B2

    公开(公告)日:2010-08-10

    申请号:US11057445

    申请日:2005-02-14

    IPC分类号: H03M13/00

    摘要: An apparatus and method for decoding a Low Density Parity Check (LDPC) code having a maximum error correction capability and an error detection capability. In the apparatus, a decoder receives a signal, and decodes the received signal according to a second parity check matrix having parity check expressions obtained by selecting a predetermined number of dependent parity check expressions among dependent parity check expressions generated by combining, with a predetermined scheme, parity check expressions representing rows of a first parity check matrix obtained by encoding information data into a block code having an optimum minimum distance considering a predetermined coding rate, and adding the selected dependent parity check expressions to the parity check expressions of the first parity check matrix. An error detector determines if there is an error in a signal output from the decoder.

    摘要翻译: 一种用于解码具有最大纠错能力和错误检测能力的低密度奇偶校验(LDPC)码的装置和方法。 在该装置中,解码器接收信号,并且根据具有奇偶校验表达式的第二奇偶校验矩阵对接收信号进行解码,该奇偶校验矩阵通过选择通过将预定方案组合而产生的相关奇偶校验表达式中的预定数量的相关奇偶校验表达式 表示代表通过将信息数据编码成具有考虑到预定编码率的最佳最小距离的块码而获得的第一奇偶校验矩阵的行的奇偶校验表达式,并且将所选择的相关奇偶校验表达式与第一奇偶校验的奇偶校验表达式相加 矩阵。 误差检测器确定从解码器输出的信号中是否存在错误。