The aspects of invention relates to determining a bit rate in a communication device, the communication device including a protocol stack for transferring information to a second communication device, the protocol stack including a protocol layer, the protocol layer providing a logical channel for transferring first information through the protocol layer. According to the method, the first information is transferred through the protocol layer via the logical channel and the bit rate in the logical channel is determined on the basis of second information obtainable from the protocol layer. The invention also relates to a method of determining a bit rate when the communication device is receiving information as well as corresponding transmitting and receiving communication devices.