METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER THRESHOLD IN SATELLITE COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a method an apparatus for uplink power control in a satellite communication system.;SOLUTION: The satellite communication system includes a user earth terminal(UET) 140, a satellite 120 and a network control center(NCC) 110. The NCC periodically polls the UET to a acquire power profile information from the UET. Then the NCC forms a power profile database in a memory 216 and statistically analyzes power profile information to decide an uplink power threshold adjustment value. Then the NCC transmits the uplink power threshold adjustment value to the satellite 120 and the satellite adjusts on-board uplink power level threshold in response to the uplink power threshold adjustment value. Then the NCC distributes an uplink power offset to the UET, and the UET updates each local power offset stored in the memory 246.;COPYRIGHT: (C)2002,JPO