Method and apparatus for link control in wireless...

Details Method and apparatus for link control in wireless... Method and apparatus for link control in wireless...

H - Electricity

04

L

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

Patent

CA 2570869

Methods and Systems are disclosed for use in a communication system 200 to selectively delay transmitting a second negative acknowledgement (NAK) after an initial NAK has already been sent requesting retransmission of a corrupted packet. The receiving entity 210 initiates a NAK prohibit timer 641 associated with a specific NAK 631 which prevents status reports to transmitting entity 220 from including a retransmission of the specific NAK until the timer expires. Use of the NAK prohibit timer 641 reduces the likelihood of spurious retransmissions from the transmitting entity 220 caused by a second NAK from the receiving entity 210 when the retransmission process has already been initiated.

L'invention concerne des procédés et des systèmes destinés à être utilisés dans un système de communication (200) afin de retarder sélectivement la transmission d'un second accusé de réception négatif (NAK) après l'envoi préalable d'un NAK initial demandant la retransmission d'un paquet corrompu. L'entité de réception (210) lance un temporisateur d'interdiction de NAK (641) associé à un NAK (631) spécifique qui empêche que des rapports d'états transmis à l'entité de transmission (220) ne comprennent une retransmission du NAK spécifique jusqu'à ce que le temporisateur expire. L'utilisation du temporisateur d'interdiction de NAK (641) réduit la probabilité de retransmisssions parasites à partir de l'entité de transmission (220) causées par un second NAK provenant de l'entité de réception (210) lorsque le processus de retransmission a déjà été lancé.

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