H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 13/29 (2006.01) H04L 1/00 (2006.01) H04L 27/00 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2321977
A puncturing device for a turbo encoder in a mobile communication system having a turbo encoder which turbo encodes input source data into a plurality of information frames and tail symbols at a given code rate is disclosed. The puncturing device comprises a frame generator for generating a transmission frame by performing puncturing and adding invalid symbols; and a controller for performing puncturing on the information frames according to the code rate, puncturing the tail symbols only when the number of punctured information frames and tail symbols exceeds a bit number according to a symbol rate, and otherwise, controlling the frame generator by reading a puncturing pattern according to the code rate and information about the number of invalid symbols.
L'invention concerne un dispositif de perforation destiné à un codeur turbo dans un système de communication mobile muni d'un codeur turbo, ledit turbo codant les données source d'entrée sous la forme de plusieurs trames d'informations et de symboles de queue à une vitesse donnée. Le dispositif de perforation comprend un générateur de trames destiné à générer une trame de transmission au moyen de perforation et d'ajout de symboles non valablest un contrôleur destiné à perforer les trames d'informations conformément à la vitesse de codage, qui perfore les symboles de queue uniquement lorsque le nombre des trames d'information et des symboles de queue perforés dépasse un nombre de bits conformément à la vitesse de symboles; dans le cas contraire, il commande le générateur de trames en lisant un motif de perforation conformément à la vitesse de codage et aux informations concernant le nombre de symboles non valables.
Kim Beong-Jo
Kim Min-Goo
Lee Young-Hwan
Qualcomm Incorporated
Samsung Electronics Co. Ltd.
Smart & Biggar
LandOfFree
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