A communication apparatus and method for a cdma...

H - Electricity – 04 – L

Patent

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H04L 1/00 (2006.01) H04B 1/69 (2006.01)

Patent

CA 2356904

A communication device for a direct sequence code division multiple access (DS- CDMA) communication system is disclosed. The communication device comprises a CRC (Cyclic Redundancy Code) generator for generating CRC bits according to input data bits and adding the generated CRC bits to the input data bits; a channel encoder for encoding the CRC-added data bits using a coding rate R-1/6 convolutional code of a generator polynomial of (457, 755, 551, 637, 625, 727); and an interleaver for interleaving the coded data bits.

L'invention concerne un dispositif de communication conçu pour un système de communication à accès multiple par répartition de code à séquence directe (SD-AMDC). Ce dispositif de communication comprend un générateur de code de redondance cyclique (CRC) servant à générer des bits CRC en fonction de bits de données d'entrée et à ajouter ces bits CRC générés aux bits de données d'entrée ; un codeur de voie servant à coder les bits de données ajoutés aux bits CRC au moyen d'un taux de codage R=1/6 de code de convolution d'un polynôme de générateur (457, 755, 551, 637, 625, 727) ; une fonction d'imbrication servant à imbriquer les bits de données codés.

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