Methods and apparatus to generate multiple cyclic redundancy...

Details Methods and apparatus to generate multiple cyclic redundancy... Methods and apparatus to generate multiple cyclic redundancy...

H - Electricity

04

L

H04L 1/18 (2006.01)

Patent

CA 2699732

Methods and apparatus for generating cyclic redundancy checks (CRCs). In one aspect of the present invention, a plurality of cyclic redundancy checks are calculated based upon a plurality of bits by using a selected cyclic redundancy check generator polynomial, at least one cyclic redundancy check is calculated based upon a first subset of the plurality of bits with a certain bit ordering, and at least another cyclic redundancy check is calculated based upon a second subset of the plurality of bits with a different bit ordering. The second subset of bits may overlap with the first subset of bits.

La présente invention concerne des procédés et un appareil pour générer des contrôles par redondance cycliques multiples (CRC). Dans un aspect de l'invention, une pluralité de contrôles par redondance cyclique sont calculés sur la base d'une pluralité de bits par utilisation d'un polynôme sélectionné de génération de contrôle par redondance cyclique. L'un au moins des contrôles par redondance cyclique est calculé sur la base d'un premier sous-ensemble de la pluralité de bits selon un certain ordonnancement des buts, un autre au moins des contrôles par redondance cyclique étant calculé sur la base d'un deuxième sous-ensemble de la pluralité de bits selon un ordonnancement des bits. Le deuxième sous-ensemble de bits peut recouvrir partiellement le premier sous-ensemble de bits.

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