Abstract: In accordance with the example embodiments of the invention there is at least an apparatus and method to perform triggering creation of a flow control report comprising information of at least one of a highest count value of protocol data units received over a particular wireless link and protocol data units not received so far, wherein the protocol data units not received so far are limited to protocol data units with count values falling within a range of count values determined using preconfigured rules; and communicating the flow control report between a user equipment and a base station.

Abstract: For a call-associated bit rate monitoring, it is provided that a count value (d) corresponding to the relationship between the maximally allowed transmission bit rate and the transmission bit rate declared for the connection and a minimum counter reading (W.sub.min) (or, respectively, a maximum counter reading (W.sub.max)) are determined during the course of the setup of the respective connection. Over and above this, the plurality of message cells appearing during the course of established connections is acquired by a global counter that is incremented by a value "1" at every appearance of a message cell. In response to the appearance of a message cell, a sum value (or, respectively, difference value) is additionally individually formed for the respective connection from a momentary counter reading maintained for the respective connection and the global counter reading.