초록 ▼

A system for determining uplink transmission quality of timing probe signals sent from a terminal to a satellite the satellite having a system to provide an indicator signal to the terminal as to whether a timing probe signal sent from the terminal has been received thereby. Timing probe signals are

A system for determining uplink transmission quality of timing probe signals sent from a terminal to a satellite the satellite having a system to provide an indicator signal to the terminal as to whether a timing probe signal sent from the terminal has been received thereby. Timing probe signals are sent to the satellite, which determines if they are received. If not received, the satellite informs the terminal. The terminal thereafter increases transmission power until the satellite informs the terminal of receipt. The terminal thereafter adjusts the transmission power downward until the satellite no longer detects the signal. The process is repeated so that terminal power transmission is kept at a minimum.

대표청구항 ▼

1. A system for determining the uplink transmission quality of timing probe signals sent from a terminal to a satellite, the system comprising:the satellite including first means mounted within said satellite to provide an indicator signal to the terminal as to whether a timing probe signal sent fro

1. A system for determining the uplink transmission quality of timing probe signals sent from a terminal to a satellite, the system comprising:the satellite including first means mounted within said satellite to provide an indicator signal to the terminal as to whether a timing probe signal sent from the terminal has been received thereby; and the terminal comprising a transmission power control for transmitting timing probe signals to the satellite at variable power settings; second means for preparing timing signals for transmission to the satellite by said transmission power control at a specific power setting; receiver means for receiving said timing probe indicator signal from the satellite; processor means for determining if said indicator signal has been received; and third means for adjusting the transmission power level of said transmission power control incrementally downward if said signal is received and incrementally upward if said indicator signal is not received.