The present invention relates to methods and arrangements of controlling an uplink data rate between a user equipment and a communication network node, which are communicating with each other on uplink and downlink data channels over a radio interface. A scheduler is arranged to distribute available scheduling headroom, provided by an uplink load control unit, between user equipments which are to be scheduled. A scheduling grant signalling is sent from the communication network node to the user equipment, based on which the user equipment is able to select a transport format combination (E-TFC).