Method for regulating the transmitting power of a master station, and corresponding master station

Abstract

A method for regulating the transmission power (P) of a transmitting station ( 10 ) and a transmitting station ( 10 ) are proposed which enable the fastest possible adaptation of a measured signal/interference ratio (SIR) to a specified target value (SIR z ). The method is employed in a transmission system as a function of an estimate of the signal/interference ratio (SIR) in a receiving station ( 20 ), and on the basis of an instruction (TPC) of the receiving station ( 20 ) the transmission power (P) in the transmitting station ( 10 ) is changed. The amount of the change (DeltaP) in the transmission power (P) is adjusted as a function of a power ratio (P/Pmean) between the current transmission power (P) and an average over time (Pmean) in the transmission power (P), such that when the value of the power ratio (P/Pmean) is increasing, the amount of the change (DeltaP) in the transmission power (P) is also raised.

1 . A method for regulating the transmission power (P) of a transmitting station ( 10 ) in a transmission system as a function of an estimate of the signal/interference ratio (SIR) in a receiving station ( 20 ), in which on the basis of an instruction (TPC) of the receiving station ( 20 ) the transmission power (P) in the transmitting station ( 10 ) is changed, characterized in that the amount of the change (DeltaP) in the transmission power (P) is adjusted as a function of a power ratio (P/Pmean) between the current transmission power (P) and an average over time (Pmean) in the transmission power (P), such that when the value of the power ratio (P/Pmean) is increasing, the amount of the change (DeltaP) in the transmission power (P) is also raised.  
     
     
         2 . The method of  claim 1 , characterized in that the relationship between the power ratio (P/Pmean) and the amount of the change (DeltaP) in the transmission power (P) is selected to be nonlinear.  
     
     
         3 . A transmitting station ( 10 ) for performing a method of one of claims  1  or  2 , characterized in that a receiving station ( 11 ) is provided, which receives instructions (TPC) for changing (DeltaP) a transmission power (P) of the transmitting station ( 10 ) from a receiving station ( 20 ), and that an evaluation unit ( 13 ) is provided, which changes the transmission power (P) of the transmitting station ( 10 ) as a function of the instruction (TPC) received, and an amount of the change (DeltaP) in the transmission power (P) from a power ratio (P/Pmean) between the current transmission power (P) of the transmitting station ( 10 ) and an average over time (Pmean) in the transmission power (P) of the transmitting station ( 10 ) is adjusted such that the amount of the change (DeltaP) in the transmission power (P) is raised when the value of the power ratio (P/Pmean) is increasing.  
     
     
         4 . The transmitting station ( 10 ) of  claim 3 , characterized in that the relationship between the power ratio (P/Pmean) and the amount of the change (DeltaP) in the transmission power (P) is nonlinear.