H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 4/22 (2009.01) H04W 52/50 (2009.01) H04W 72/10 (2009.01) H04B 1/707 (2006.01)
Patent
CA 2557810
When an emergency communication or the like is issued, it is assigned higher priority in a simple, effective manner. In an emergency, a special call part (206) of a mobile station (200) is switched from a normal mode to an emergency mode, and the communication part (206) of the mobile station transmits a radio wave in which the electric power (electric power spectrum density) of a transmitted signal at the center frequency (f0) of the carrier is high. A base station (100) receives the radio wave transmitted from the mobile station (200) in the emergency, and transmits suppression signals to the other mobile stations so as to suppress the signal intensities thereof. In this way, only the mobile station (200) that has issued the emergency communication can establish a communication path with the base station (100).
Lors de l'émission d'une communication d'urgence ou analogue, une priorité supérieure est affectée de manière simple et efficace. Lors d'une urgence, une portion d'appels spéciaux (206) d'une station mobile (200) est commutée d'un mode normal vers un mode d'urgence, et la portion de communication (206) de la station mobile transmet une onde radioélectrique dans laquelle l'énergie électrique (la densité spectrale d'énergie électrique) d'un signal transmis à la fréquence centrale (f¿0?) de la porteuse est élevée. Une station de base (100) reçoit l'onde radioélectrique transmise depuis la station mobile (200) lors de l'urgence, et transmet des signaux de suppression aux autres stations mobiles en vue de la suppression leurs intensités de signal. Ainsi, seule la station mobile (200) qui a émis la communication d'urgence peut établir un parcours de communication avec la station de base (100).
Kanada Naoki
Shiomi Kakuichi
Yamagishi Atsushi
Electronic Navigation Research Institute An Independent Administrative Institution
Kirby Eades Gale Baker
Mitsubishi Space Software Co. Ltd.
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