Reverse link channel architecture for a wireless...

H - Electricity – 04 – W

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H04W 52/04 (2009.01) H04W 52/54 (2009.01) H04B 7/00 (2006.01)

Patent

CA 2438527

A channel structure and mechanisms that support effective and efficient allocation and utilization of the reverse link resources. In one aspect, mechanisms are provided to quickly assign resources (e.g., a supplemental channel) as needed, and to quickly de-assign the resources when not needed or to maintain system stability. The reverse link resources may be quickly assigned and de-assigned via short messages (412, 418) exchanged on control channels on the forward and reverse links. In another aspect, mechanisms are provided to facilitate efficient and reliable data transmission. A reliable acknowledgment/negative acknowledgment scheme and an efficient retransmission scheme are provided. Mechanisms are also provided to control the transmit power and/or data rate of the remote terminals to achieve high performance and avoid instability.

L'invention concerne une structure de canal et des mécanismes permettant une attribution et une utilisation efficaces des ressources de liaison montante. L'invention concerne, dans un aspect, des mécanismes destinés à assigner rapidement des ressources (par exemple, un canal supplémentaire) si nécessaire, et à désassigner rapidement les ressources lorsqu'elles ne sont pas nécessaires ou à maintenir la stabilité du système. Les ressources de liaison montante peuvent être rapidement assignées et désassignées via des messages courts (412, 418) échangés sur des canaux de commande sur les liaisons descendantes et montantes. L'invention concerne, dans un autre aspect, des mécanismes destinés à faciliter une transmission de données efficace et fiable. L'invention concerne également un système de reconnaissance fiable/reconnaissance négative et un système de retransmission efficace. L'invention concerne, de plus, des mécanismes de commande de puissance de transmission et/ou de débit de données des terminaux éloignés permettant d'obtenir une plus grande efficacité et d'éviter l'instabilité.

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