H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/22 (2006.01) H04L 1/00 (2006.01)
Patent
CA 2379842
The invention concerns a method wherein each coded signal frame comprises at least a set of bits to be protected against transmission errors, including at least a subset of bits for which a particular error detection code is computed. Each of said bit subsets is placed in a transport frame with its own particular error detection code. Some of the transport frames at least contain several bit subsets, derived form the various coded signal frames and accompanied by their respective error detection codes. The number (q¿i,j,k?) of bits of said bit subsets (L¿i,j,k?) of the computed error detection code for a bit subassembly is advantageously an increasing function of the number of bits of said subset.
Chaque trame de signal codé comporte au moins un ensemble de bits à protéger contre des erreurs de transmission, incluant au moins un sous-ensemble de bits pour lequel on calcule un code de détection d'erreurs respectif. Chacun desdits sous-ensembles de bits est placé dans une trame de transport avec son code de détection d'erreurs respectif. Certaines au moins des trames de transport contiennent plusieurs sous-ensemble de bits, issus de trames de signal codé différentes et accompagnés par leurs codes de détection d'erreurs respectifs. Le nombre (qi,j,k) de bits desdits sous-ensembles peut varier d'une trame de signal codé à une autre, auquel cas le mombre (Li,j,k) de bits du code de détection d'erreurs calculé pour un sous-ensemble de bits est avantageusement une fonction croissante du nombre de bits dudit sous-ensemble.
Force Pierre
Krief Albert Patrick
Eads Telecom
Fetherstonhaugh & Co.
Matra Nortel Communications
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