METHOD AND DEVICE FOR PARALLEL SCRAMBLING

摘要

Disclosed are a method and device for parallel scrambling. The method comprises: storing input signals in a segmentation mode by using the order n of a state change relation matrix of a scrambler as the segmentation length; determining a state change relation matrix T of the scrambler according to the length of a pseudorandom sequence required for scrambling, and multiplying elements having corresponding identical row value and column value sparsely stored in the matrix T; setting the state of the scrambler at the initial moment, deriving the logic relation between the parallel output and parallel input data of the scrambler and the initial state of the scrambler according to the formulas: (I), (II), and scrambling different packets of input signals in parallel; and after scrambling, reducing different packets of input signals into a serial data stream in regular sequence according to the moments of the input signals. By means of the present invention, the computation amount of scrambling can be reduced, and the occupation of storage space is reduced.