An interleaving apparatus and method for a communication system which can be
applied
to determine a new interleaver size N=2m(j+1) and addresses
of 0 to N-;1, if a given interleaver size N is larger than 2mj
and smaller than 2m(j+1), where m represents a first parameter
indicating a number of consecutive zero bits from a least significant bit (LSB)
to a most significant bit (MSB), and j represents a second parameter corresponding
to a decimal value other than said consecutive zero bits. The interleaving apparatus
and method sequentially stores N input data bits in an interleaver memory with
the new interleaver size N from an address 0 to an address N-;1.
The interleaving apparatus and method then executes a Partial Bit Reversal(PBRO)-interleaving
the memory with the new interleaver size N, and reads data from the memory
by deleting addresses corresponding to addresses of N to N-;1 of the memory
before interleaving.
