Pilot signal strength control for a low earth orbiting...

H - Electricity – 04 – B

Patent

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Details

H04B 7/005 (2006.01) H04B 7/185 (2006.01) H04B 7/216 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2222925

A system and method for controlling the strength of a shared resource signal transmitted by the satellite transponder (104) in a satellite communications system. The satellite communications system includes a gateway (102) for transmitting communications signals including a shared resource signal (402), a satellite transponder (104) for relaying (404) the signals to at least one subscriber unit (106A, B, C) (for example, a phone), and at least one subscriber unit (106) for receiving the signals (406). The method includes the steps of receiving the shared resource signal (406), at each subscriber unit (106), via the satellite transponder (104); measuring (408), at each subscriber unit (106), a signal strength for the received shared resource signal; sending the signal strengths to the gateway (410, 102); and adjusting the power of the shared resource signal transmitted by the satellite transponder (418) based on the signal strengths.

L'invention concerne un système et un procédé de régulation de la puissance d'un signal ressource partagée transmis par une répéteur de satellite (104) dans un système de communications par satellite. Ce système comprend une passerelle (102) destinée à transmettre des signaux de communication comprenant un signal ressource partagée (402), un répéteur de satellite (104) qui retransmet les signaux vers au moins un poste d'abonné (106A, B, C) (par exemple, un téléphone), et au moins un poste d'abonné (106) destiné à recevoir les signaux (406). Le procédé consiste à recevoir le signal ressource partagée (406), au niveau de chaque poste d'abonné (106), via le répéteur de satellite (104); à mesurer (408), au niveau de chaque poste d'abonné (106), une puissance du signal ressource partagée; à envoyer les résultats de la mesure à la passerelle (410, 102); et à ajuster la puissance du signal ressource partagée transmis par le répéteur de satellite (418) en fonction des mesures obtenues.

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