Patent ID: 6212360
Filing Date: 2001-04-03
Classification: H04B

Abstract:
A method for adjusting the power in an uplink transmission from a hub earth-station to a satellite, the method comprising the steps of:receiving an outbound signal from a local receiver, and determining an outbound signal power level;conditionally receiving a beacon signal from a satellite local receiver and determining a beacon signal power level;computing a first difference between the received beacon signal power level and a nominal beacon signal power level, when the beacon signal is received;computing a second difference between the received outbound signal power level and a nominal outbound signal power level, when the beacon signal is not received;computing a desired amount of attenuation based on the first difference if the beacon signal is received and the second difference if the beacon signal is not received;determining whether the desired amount of attenuation is within a range of permissible amounts of attenuation; andsetting an actual amount of attenuation with a value within the range of permissible amounts of attenuation if the desired amount of attenuation is outside of the range of permissible amounts of attenuation.