Device and Method for Signal Detection in a TDMA Network
The present invention is related to a circuit (1) for detecting activity in a burst-mode receiver. The circuit is arranged for receiving an input signal (2) comprising a preamble. The circuit comprises a differentiator (11) for detecting signal transitions in the input signal (2) whereby the preamble comprises information on operating said differentiator (11). In a preferred embodiment, the information is a time constant. The circuit further comprises an integrator (12) arranged for being fed with an output of the differentiator. The resulting signal is compared to a reference (16). If this reference is crossed, activity is detected. In an embodiment a front-end circuit is presented comprising next to a circuit for detecting activity, a reset circuit arranged for resetting the front-end circuit and a clock phase alignment circuit arranged for recovering the phase.
BAUWELINCK JOHAN [BE]; DE RIDDER TINE [BE]; MELANGE CEDRIC [BE]; OSSIEUR PETER [BE]; BAEKELANDT BART [BE]; QIU XING ZHI [BE]; VA
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