摘要:
A method and apparatus for turbo coding and decoding is provided herein. During operation, a concatenated transport block (CTB) of length X is received and a forward error correction (FEC) block size KI is determined from a group of available non-contiguous FEC block sizes between Kmin and Kmax, and wherein Kmin≦KI
摘要翻译:本文提供了一种用于turbo编码和解码的方法和装置。 在操作期间,接收长度为X的级联传输块(CTB),并且从Kmin和Kmax之间的一组可用的非连续FEC块大小确定前向纠错(FEC)块大小KI,其中Kmin&nlE; KI < Kmax,并且其中KI另外基于X.长度为X的级联传输块被分割成每个大小基本上等于KI的C个段。 使用FEC块大小KI来确定每个C段的FEC码字; 并且通过该信道发送C个FEC码字。
摘要:
A wireless communication transmitter (200) configured to segment a transport block into C segments, encode each segment into a set of encoded bits, determine, for γ encoded segments, a subset of size M0′ of encoded bits for each encoded segment and for C−γ encoded segments, a subset of size M1′ of encoded bits for each encoded segment, wherein the subset sizes M0′ and M1′ differ at most by P bits, where P is a product of a modulation order and a number of transmission layers over which the transport block is transmitted. The selected subsets of encoded bits are concatenated and grouped to form modulation symbols of the modulation order.
摘要:
During operation of a transmitter a circular buffer is created where only column tops of the circular buffer are defined as a starting position for a redundancy version. Where the circular buffer is in sequence format, all possible redundancy versions are at positions ┌Kstream/32┐(12×i+σ), i=0, 1, . . . , 7 where σ indicates the column index of the starting position of the first RV (RV0).
摘要:
A method and apparatus for turbo coding and decoding is provided herein. During operation, a concatenated transport block (CTB) of length X is received and a forward error correction (FEC) block size KI is determined from a group of available non-contiguous FEC block sizes between Kmin and Kmax, and wherein Kmin≦KI
摘要翻译:本文提供了一种用于turbo编码和解码的方法和装置。 在操作期间,接收长度为X的级联传输块(CTB),并且从K组的可用非连续FEC块大小组中确定前向纠错(FEC)块大小K I I, SUB> min SUB>和K最大 SUB>,并且其中K min min≤K 并且其中K 1 X另外基于X.长度为X的级联传输块被分割成C个段,每个段大小基本上等于K 1。 使用FEC块大小K 1确定每个C段的FEC码字; 并且通过该信道发送C个FEC码字。
摘要:
During operation of a transmitter a circular buffer is created where only column tops of the circular buffer are defined as a starting position for a redundancy version. Where the circular buffer is in sequence format, all possible redundancy versions are at positions ┌Kstream/32┐(12×i+σ), i=0, 1, . . . , 7 where σ indicates the column index of the starting position of the first RV (RV0).
摘要:
A method and apparatus for encoding and decoding data is provided herein. During operation, A structured parity-check matrix H is provided to the encoder and decoder, where H is an m by n matrix and an expansion of a model matrix Hbm of size mb by nb, where m=mb×z and n=nb×z. For a given code rate, multiple code sizes are accommodated by allowing both the model matrix size nb and the expansion factor z to vary.
摘要:
A method and apparatus for interleaving within a communication system is provided herein. More particularly parameters for a convolutional turbo code interleaver are provided, and interleaving takes place utilizing the new parameters. The new parameters generate interleavers that have the correct turbo code behaviors of improving performance with increasing block size and an error floor well below a block error rate of 10−4. Furthermore, the parameters have no implementation impact. Interleaving in accordance with the preferred embodiment of the present invention can achieve a block error rate of 10−4 at a signal-to-noise ratio that is at least 0.5 dB, and in some cases up to 1.3 dB, smaller than that which can be achieved with the code using the existing parameters.
摘要:
A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb. Base matrix Hb comprises a section Hb1 and a section Hb2. Section Hb2 comprises column hb having weight wh>=3 and H′b2 having a dual-diagonal structure with matrix elements at row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The 1's of hb and Hb1 are arranged such that one or more groups of the rows of Hb can be formed so that the rows of Hb within each group do not intersect. Further more, the rows of base matrix Hb can be permuted such that every two consecutive rows do not intersect.
摘要翻译:提出了一种结构化奇偶校验矩阵H,其中H是基本矩阵H B b的扩展。 基本矩阵H B b包括部分H b1和部分H b2b。 部分H b2包括具有重量w SUB> = 3的第hb个b和具有双重键的H' 对于i行j矩阵元素的对角线结构,对于i = j,列j等于1,i = j + 1为1,其他地方为0。 hB1和H b1的1个被布置成使得可以形成一行或多组H B b的行,使得行 每个组中的H b b不相交。 此外,基矩阵H B b的行可以被置换,使得每两个连续的行不相交。
摘要:
A method and apparatus for encoding and decoding data is provided herein. During operation, A structured parity-check matrix H is provided to the encoder and decoder, where H is an m by n matrix and an expansion of a model matrix Hbm of size mb by nb, where m=mb×z and n=nb×z. For a given code rate, multiple code sizes are accommodated by allowing both the model matrix size nb and the expansion factor z to vary.
摘要翻译:本文提供了一种用于对数据进行编码和解码的方法和装置。 在操作期间,将结构奇偶校验矩阵H提供给编码器和解码器,其中H是m×n矩阵,并且扩展大小为m的模型矩阵H bm < 其中m = m b b x z和n = n b b x z。 对于给定的代码率,通过允许模型矩阵大小nB2和扩展因子z两者变化来适应多个代码大小。
摘要:
A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix Hb and wherein Hb comprises a section Hb1 and a section Hb2, and wherein Hb2 comprises a first part comprising a column hb having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i=j, 1 for i=j+1, and 0 elsewhere. The expansion of the base matrix Hb uses identical submatrices for 1s in each column of the second part H′b2, and the expansion uses paired submatrices for an even number of 1s in hb.