Patent ID: 7450907
Filing Date: 2008-11-11
Classification: H03G,H04B,H04W

Abstract:
1. An apparatus, comprising: a calibrator configured to calibrate the transmission or receiving power of a transmitter or receiver in a mobile communication network, the calibrator including a summer connected to an antenna array of the transmitted or receiver, wherein the summer is configured to sum transmission or reception signals, and a common calibrator configured to calibrate the summed signals, wherein the apparatus is configured to transmit or receive burst signals for the antenna array and the burst signals include a training sequence; a power control loop configured to control the output power of the power amplifier, the power control loop containing a detector configured to detect the output of the power amplifier, and a controller configured to control the detector so as to detect the output of the power amplifier only during a time of output of the training sequence using a time-window to activate the detector only during the training sequence and to stop the detection function of the detector during the other times, wherein the apparatus is configured to control the power based on the detected output power; and a power detection section configured to issue a control signal which is applied to a control input of the detector, wherein the power detection section is configured to generate the control signal with a timing so as to operate the detector only when the power amplifier outputs the training sequence, wherein the power detection section is configured to generate the control signal by providing a time delay between start of a burst signal and start of the control signal sufficient so as to open the detection function of the detector only when the first bits of the training sequence are occurring at the input of the detector, and to close the time window for detecting the power amplifier output signal at or before the occurrence of the last bits of the training sequence.