Patent ID: 7415077

Claim:
A transmission arrangement for a mobile radio, comprising: a baseband signal processing unit configured to condition a useful signal comprising an inphase component and a quadrature component with a respective digital/analog converter, and provide such conditioned useful signal components at an inphase path output and a quadrature path output, respectively; a frequency converter comprising an inphase input coupled to the inphase path output, and a quadrature input coupled to the quadrature path output of the baseband signal processing unit, and further comprising an output, and configured to provide a modulated signal derived from the useful signal at the frequency converter output; and a feedback path comprising an analog/digital converter comprising an input connected to the inphase input and to the quadrature input of the frequency converter via a respective switch, and comprising an output connected to a control input of the baseband signal processing unit, wherein the baseband signal processing unit is configured to alter one of the inphase component and the quadrature component of the useful signal in response to a signal at the control input.