Patent ID: 8527832
Filing Date: 2013-09-03
Classification: H03M

Abstract:
1. A turbo-coding method for a packet of information symbols (I) in which, in a first branch of said turbo-code, said packet is supplied in systematic form, said packet being encoded using a first systematic code (C), of an LDPC (Low Density Parity Check) type, defined by a first check matrix H, parity symbols of the packet thus encoded being provided in a second branch of the turbo-code, said packet being encoded, after interleaving, using a second code ({tilde over (C)}), defined by a second check matrix {tilde over (H)}, the parity symbols of the packet thus encoded being supplied in a third branch of the turbo-code, wherein said second check matrix is obtained by fractionating at least one parity check represented by a row of matrix H into a plurality of partial parity checks applying to the symbols of the first systematic code and at least one additional symbol, by adding to this matrix H at least one new column representing said additional symbol and by substituting for said row new rows respectively representing these partial parity checks.