초록 ▼

A method and system for adjusting the transmission power of a transmitter during a communication with a receiver in a mobile satellite communication system is disclosed herein. The method comprises establishing at least one threshold signal strength value for a transmitted burst; measuring the recei

A method and system for adjusting the transmission power of a transmitter during a communication with a receiver in a mobile satellite communication system is disclosed herein. The method comprises establishing at least one threshold signal strength value for a transmitted burst; measuring the received signal strength of the burst received by the receiver; comparing the received signal strength with the threshold value; and setting a power control bit based on the comparison. The system comprises a plurality of mobile terminals having a first stored threshold value; a satellite adapted to communicate with each of the mobile terminals; at least one gateway in communication with the satellite, the gateway having a second stored threshold value, and including a routine for measuring the received signal strength of a burst signal transmitted from the mobile terminal, for comparing the received signal strength with the second stored threshold value, and for adjusting the transmission power of the gateway based on the comparison; and each of the mobile terminals including a routine for measuring the received signal strength of a burst signal transmitted from the gateway to the mobile terminals, for comparing the received signal strength with the first stored threshold value, and for adjusting the transmission power of the mobile terminal based on the comparison.

대표청구항 ▼

[ What is claimed is:] [1.] For use in a communication system, a signal receiving unit comprising:a receiver for receiving incoming communication signals from a transmitting unit, the incoming communication signal having an associated signal quality value and an associated received signal strength,

[ What is claimed is:] [1.] For use in a communication system, a signal receiving unit comprising:a receiver for receiving incoming communication signals from a transmitting unit, the incoming communication signal having an associated signal quality value and an associated received signal strength, the incoming communication signals periodically comprising control signals including an upper threshold signal strength value, a lower threshold signal strength value, and a nominal signal quality value,a processor in communication with the receiver, the processor being adapted to (a) set a power control bit to a first value if the received signal strength is lower than the lower threshold signal strength value; (b) to set the power control bit to a second value if the received signal strength is higher than the upper threshold signal strength value; (c) to set the power control bit to the first value if the signal quality value is lower than the nominal signal quality value and the received strength signal is both higher than the lower threshold signal strength value and lower than the upper threshold signal strength value; and, (d) to set the power control bit to the second value if the signal quality value is higher than the nominal signal quality value and the received strength signal is both higher than the lower threshold signal strength value and lower than the upper threshold signal strength value; and,a transmitter in communication with the processor for transmitting the power control bit set by the processor to the transmitting unit.