A system for processing data flows comprises a classifier, a first processor, a first checking unit, a calculator, and a second processor. The classifier is designed for classifying of data channels into a first and a second class of data channels. The first processor is designed for processing of a second sub-class of data channels. The calculator is designed for calculating information for the second class data channels from processing results of the first processor. The second processor is designed for processing the second class data channels using information calculated by the calculator. Each of network equipment for an uplink connection, and of user equipment for a downlink connection or batch processing of format detection comprises such a system for processing data flows. A method for processing data flows comprises following steps: a step of performing a classification (60, 62) of data channels into a first and a second class of data channels; a step of processing of the first class data channels; a step of calculating information for the second class data channels from processing results of the step of processing; and a step of processing of the second class data channels using information calculated in the step of calculating information.