High power short message service using dedicated carrier...

Details High power short message service using dedicated carrier... High power short message service using dedicated carrier...

H - Electricity

04

L

H04L 1/08 (2006.01) H04B 1/74 (2006.01) H04B 7/185 (2006.01) H04L 1/04 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2241932

A TDMA communication system and method for transmitting short data messages in the TDMA communication system. According to exemplary embodiments, a dedicated frequency is sequentially switched into each of a plurality of satellite beams or traffic channels to transmit data messages at an increased power level to provide an increased signal margin. Coding and bit and message repetition can also be employed to further increase the signal margin.

Système et communications AMRT (accès multiple à répartition dans le temps) et procédé de transmission de brefs messages de données dans ce système de communications AMRT. Selon un exemple de réalisation, une fréquence spécialisée est séquentiellement commutée dans chacun des faisceaux de rayonnement des satellites ou chacune des voies de trafic afin de transmettre des messages de données à un niveau de puissance supérieur pour obtenir une plus grande marge du signal. Le codage et la répétition de bits et de messages peuvent être également utilisés pour augmenter encore la marge du signal.

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