Disclosed is an apparatus comprising means for: detecting an occurrence of a traffic burst event on a flow within a wireless network; responsive to the detection of the occurrence of a traffic burst event, determining whether a traffic burst allowance is available; responsive to determining that the traffic burst allowance is available, scheduling the flow and/or another flow within the wireless network with a traffic burst bit rate at which to transmit data, the traffic burst bit rate being greater than a first, guaranteed bit rate indicated by an assigned quality of service for the flow; and responsive to determining that the traffic burst allowance has been exhausted and/or determining that occurrence of the traffic burst event has stopped, scheduling the flow with the first bit rate.