METHOD AND SYSTEM FOR CONTROLLING UPLINK POWER IN A SATELLITE COMMUNICATION SYSTEM USING ERROR LEVELING

摘要

A method and system for controlling uplink power in a satellite communicati on system using error leveling is provided. The uplink power control system for a satellite communication system of a preferred embodiment of the present invention comprises a communication satellite (101) and at least one UET (105). The communication satellite (101) includes an error detector (211) and a comparator (215). The UET (105) includes a receiver (206) for receiving an error indicator signal from the comparator (215), and a power profile processor (216) for controlling the transmit power level of th e particular chanslot being used by the UET in response to the error indicator. A preferr ed method for controlling the transmit power level of a particular chanslot assigned t o a UET in a satellite communication system in accordance with the present invention includes determining an error count for an uplink data signal received from the UET i n the chanslot (403), and comparing the error count to a predetermined error threshold (404). The method further includes generating an error indicator signal for the chanslot in response to the comparison (405), and controlling the transmit power level o f the particular chanslot in response to the error indicator (409, 410).