Patent ID: 7330706

Claim:
A power control system for a radio transmitter transmitting a radio signal modulated with non-constant envelope modulation, comprising: an amplifier that amplifies a signal comprising data bursts; parts for obtaining a first voltage corresponding to a power of the amplified signal; time masking parts that select at least one time window during which tail symbols of a first data burst are sent, wherein said time window has a predetermined length, and is located at one of a beginning and an end of the time during which the payload data are sent, and wherein the non-constant-envelope modulation is made more constant; parts for measuring the first voltage only during the at least one time window selected by the time masking parts; a comparator for comparing the first voltage with a reference voltage and producing a comparison result; and a controller, responsive to the comparator, that adjusts a control signal of the amplifier after a predetermined time delay, occurring after the time window selected by the time masking parts has lapsed, if the comparison result indicates that the first voltage deviates more than a predefined threshold value from the reference voltage.