Harq device and method for mobile communication system

H - Electricity – 04 – L

Patent

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H04L 1/12 (2006.01) H04L 1/18 (2006.01)

Patent

CA 2395190

There is provided a device and method for retransmitting error-detected data in a mobile communication system. A transmitter generates S sub-codes Ci (i = 0, 1, 2, . . . , S-1) from a physical layer packet (PLP) information stream using quasi-complementary turbo codes, initially transmits the first sub-code C0, and then sequentially transmits the following sub-codes each time a retransmission request is received for the initial transmission or a previous retransmission. Upon receipt of a retransmission request for the last sub-code CS-1, the transmitter transmits the first sub-code C0 and then sequentially transmits the following sub-codes each time a retransmission request is received.

L'invention concerne un dispositif et un procédé de retransmission de données comportant une erreur détectée, dans un système de communication mobile. Un émetteur produit S sous-codes CI (i=0, 1, 2, , S-1) à partir d'un flux d'informations par paquets de couche physique, à l'aide de turbocodes quasi complémentaires, il émet d'abord le premier sous-code C0 puis il émet en séquence les sous-codes suivants, lors de chaque réception d'une demande de retransmission, soit de l'émission initiale soit d'une retransmission précédente. Lors de la réception d'une demande de retransmission pour le dernier sous-code CS-1, l'émetteur émet le premier sous-code CO puis émet ensuite en séquence les sous-codes suivants, lors de chaque réception d'une demande de retransmission.

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