Hold circuit, mobile station, base station and digital radio communication system comprising such a hold circuit.

摘要

In a system for digital radio communication (20) with dynamic channel allocation, the maximum signal strength (Umax) is measured in a time slot (TS). For this purpose, the peak value is to be held. This may be effected in the receive section of both a base station (21) and a mobile station (22). An example of such a digital radio communication system (20) is a system operating according to the DECT standard. A hold circuit (1) is known which holds the peak value of an analog input signal (Ui) in analog form. It is an object of this invention to hold the peak value in digital form. To this end the hold circuit (1) comprises in the feedback loop (2) a digital hold element (8) and a digital/analog converter (11) for feeding back the output signal (U0) to the comparator element (3). In an exemplary embodiment the digital hold element (8) is a counter (13). The invention likewise relates to a hold circuit (1) which holds the minimum value of the input signal (Ui).