Patent ID: 7664521

Claim:
A transmission power target value control system, allowing a target value for a transmission power control to be down-controlled in a radio communication line between radio communication stations at a predetermined cycle and at a predetermined width when a reception quality of a moving average becomes better than a predetermined reception quality, said transmission power target value control system comprising: a control means for controlling at least a down cycle of said target value to be shorter than said predetermined cycle when the number of error occurrences of received signals is larger than a predetermined threshold value; and a measuring means for measuring a reception SIR (signal to interference ratio), wherein a target SIR is calculated utilizing said moving average prior to the convergence of said predetermined reception quality and target value, and wherein said control means comprises means for calculating the reception quality by said moving average with replacing said number of error occurrences by a predetermined upper limit value smaller than said predetermined threshold value, and means for performing a down control of said target value when this calculated reception quality is better than said predetermined reception quality.