Apparatus and method for supporting automatic repeat request...

Details Apparatus and method for supporting automatic repeat request... Apparatus and method for supporting automatic repeat request...

H - Electricity

04

L

H04L 1/18 (2006.01) H04L 1/00 (2006.01) H04L 1/16 (2006.01)

Patent

CA 2452268

Disclosed is an apparatus and method for supporting automatic repeat request (ARQ) in a high-speed wireless packet data communication system. A mobile station receives control information including a subpacket identifier (SP ID) representing the sequence of a subpacket, the size of an encoder packet (EP SIZE), and a sequence identifier (AI SN) that is toggled each time a new encoder packet is transmitted, while receiving one of a plurality of subpackets generated by segmenting a bit stream acquired by encoding a transmission encoder packet. The mobile station determines whether it will perform a decoding process caused by initial transmission or a decoding process caused by retransmission on the received subpacket, based on the control information.

La présente invention concerne un appareil et un procédé pour admettre les demandes de répétition automatique (ARQ) dans un système de communication numérique de paquets radio à grande vitesse. Une station mobile reçoit de l'information de contrôle incluant un identificateur de sous-paquet (SP ID) représentant la séquence d'un sous paquet, la longueur de paquet de codeur (EP SIZE) et un identificateur de séquence (AI SN) qui est basculé à chaque fois qu'un nouveau paquet de codeur est émis, tout en recevant l'un des divers sous-paquets produits par segmentation d'un train binaire acquis par codage d'un paquet de codeur pour émission. Sur la base de l'information de contrôle, la station mobile détermine si elle va exécuter un traitement de décodage provoqué par l'émission initiale ou un traitement de codage provoqué par la retransmission sur le sous-paquet reçu.

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