| 摘要 |
<p>A method and apparatus is provided for determining a turbo interleaver parameter, n, wherein n is the smallest integer such that k< 2<SUP>n+3</SUP>, initializing an (n+5)-bit counter x to '0', determining x' equal to ([x/32] + 1) mod 2<SUP>n</SUP>, wherein, x' is generated by extracting the n most significant bits (MSBs) from the counter, adding one to form a new value, and then discarding all except the n least significant bits(LSBs) of this value, obtaining a n-bit output x'' of the lookup table with a read address equal to five LSBs of the counter x, determining a value of y, such that y is equal to x'x'' mod 2<SUP>n</SUP>, determining a value of y' by bit-reversing the five LSBs of the counter x, forming a tentative output address z, wherein, MSBs of z are equal to the value of y' and LSBs of z are equal to the value of y, determining if z is less than k, wherein, k is the number of input addresses, accepting z when z is less than k, discarding z when z is greater than k and increasing the counter x.</p> |
