BIT INTERLEAVER AND BIT DE-INTERLEAVER
    1.
    发明申请
    BIT INTERLEAVER AND BIT DE-INTERLEAVER 审中-公开
    位交互和位交互

    公开(公告)号:US20150244398A1

    公开(公告)日:2015-08-27

    申请号:US14628456

    申请日:2015-02-23

    Abstract: A method for bit interleaving is provided. A method includes mapping a set of bits a≡{ak: k=0, 1, 2, . . . Npost−1} to an array B={Bi,j: i=0, 1, 2, . . . , M−1; j=0, 1, 2, . . . , N−1} such that bit ak maps to Bk mod M, └k/M┘, wherein mod denotes the modulo operator, └ ┘ denotes the floor operator, and M and N are constants, performing at least one of—a first permutation operation comprising permuting two or more bits within each of one or more first groups of bits, wherein each first group of bits is defined by G(1)p={Bi,p: i=0, 1, 2, . . . , M−1; p∈{0, 1, 2, . . . , N−1}} and—a second permutation operation comprising permuting two or more bits within each of one or more second groups of bits, wherein each second group of bits is defined by G(2)q={Bq,j: j=0, 1, 2, . . . , N−1; q∈ {0, 1, 2, . . . , M−1}} and de-mapping bits from B to obtain an interleaved set of bits b≡{bk: k=0, 1, 2, Npost−1} such that bit B,i,j is de-mapped to bit bNi+j.

    Abstract translation: 提供了一种用于比特交织的方法。 一种方法包括映射一组位a≡{ak:k = 0,1,2,..., 。 。 Npost-1}到数组B = {Bi,j:i = 0,1,2,..., 。 。 ,M-1; j = 0,1,2。 。 。 ,N-1},使得位ak映射到Bk mod M,└k/M,其中mod表示模运算符,└表示地板操作符,M和N是常数,执行以下操作中的至少一个: 置换操作包括置换一个或多个第一组位中的每一个中的两个或多个位,其中每个第一组位由G(1)定义p = {Bi,p:i = 0,1,2, 。 。 ,M-1; p∈{0,1,2,..., 。 。 ,N-1}}和 - 第二置换操作,包括在一个或多个第二组位组内的每一个中排列两个或多个位,其中每个第二组位由G(2)q = {Bq,j:j = 0,1,2,... 。 。 ,N-1; q∈{0,1,2。 。 。 ,M-1}}并且从B解映射比特以获得交织的比特组b≡{bk:k = 0,1,2,Npost-1},使得比特B,i,j被映射到 位bNi + j。

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