Interleaver and interleaving method in a communication system

Details Interleaver and interleaving method in a communication system Interleaver and interleaving method in a communication system

H - Electricity

03

M

H03M 13/27 (2006.01)

Patent

CA 2451640

Disclosed is a method of determining interleaver parameters m and J according to an interleaver size N to sequentially store input data in a memory having a row×column matrix structure and partial-bit reversal order (P-BRO) interleaving the stored data, the parameters N, m, J, and R being expressed as N=2m×J+R (0<=R<2m), the method comprising: calculating a first variable .alpha. by (log2N-~log2N~) and a second variable .beta. by (2~log2~N~); comparing the first variable with a selected first threshold; comparing the second variable with at least one predetermined second threshold; determining a first parameter J according to the comparison results; and determining a second parameter m by ~log2(~)~.

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