Extended error correction of a transmitted data message

H - Electricity – 04 – L

Patent

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H04L 1/18 (2006.01)

Patent

CA 2095719

The extended error correction process of the present invention corrects (106) error of a data message that has been transmitted a plurality of times. The process first receives the data message at least twice, logically combining the first and second messages received to form an error indication word (101). The error indication word is then used to locate the error locations in each message after which some of the errors are complemented (106), depending on the total number of errors found. The message is then decoded (104) and used for transmit power changes, channel reassignment, to release a call (140), etc.

Le procédé de correction étendue d'erreurs de la présente invention corrige des erreurs (106) d'un message de données qui a été transmis une pluralité de fois. Le procédé reçoit d'abord le message de données au moins deux fois, combinant logiquement les premier et second messages reçus pour former un mot d'indication d'erreur (101). Le mot d'indication d'erreur est ensuite utilisé pour localiser les erreurs dans chaque message, après quoi on calcule le complément d'erreurs, en fonction du nombre total d'erreurs trouvées. Le message est alors décodé (104) et utilisé pour déterminer les variations de la puissance d'émission, la réaffectation à un canal, et pour libérer un appel (140), etc.

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