Method and system for providing uplink/downlink collision...

Details Method and system for providing uplink/downlink collision... Method and system for providing uplink/downlink collision...

H - Electricity

04

J

H04J 3/02 (2006.01) H04L 12/28 (2006.01) H04L 29/02 (2006.01)

Patent

CA 2171978

Collision avoidance is maximized by placing collision avoidance scheduling in a central access manager. The central access manager coordinates downlink transmissions of a base site with the uplink transmissions by subscriber units, virtually avoiding collisions of the two types of transmissions. The subscriber units utilize a waiting period (204, 206) prior to transmission of packets to permit the central access manager to maintain the scheduling.

Système permettant d'éviter au maximum les collisions grâce à l'introduction, dans le système central de gestion d'accès, d'un planning d'évitement des collisions. Le système central de gestion d'accès coordonne les émissions descendantes provenant de la station de base et les émissions montantes provenant des unités d'abonnés, évitant essentiellement les collisions entre les deux types d'émission. Les unités d'abonnés utilisent un délai d'attente (204, 206) avant d'émettre les paquets, pour permettre au système central de gestion d'accès de maintenir le planning.

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