Patent ID: 9031601
Filing Date: 2015-05-12
Classification: H04W

Abstract:
1. A method of controlling the total power with which a radio transmitter of a radio access node transmits a signal, the method comprising: inputting an input signal into a power amplifier of the radio transmitter to produce, as a function of the input signal, an output signal to be transmitted by the radio transmitter; generating a feedback signal from the output signal at the radio transmitter; measuring the feedback signal to obtain one or more performance metrics that characterize performance of the output signal; comparing the one or more performance metrics to one or more performance metric thresholds; and controlling a maximum permissible level of the total power of the input signal, based on said comparison, wherein said controlling comprises controlling said maximum permissible level to maintain at least one of said one or more performance metrics in long-term compliance with a corresponding performance metric threshold associated with a first defined performance level of the output signal, with tolerance for short-term non-compliance of the at least one performance metric with that threshold.