Configuring transmissions

A method of configuring transmissions over a radio bearer between a base station and user equipment of a wireless telecommunication network, a base station, user equipment, a radio network controllerand computer program products are disclosed. The method of configuring transmissions over the radio bearer between the base station and the user equipment of the wireless telecommunication network comprises the steps of: preconfiguring the user equipment to support transmissions over a plurality of transport channels of the radio bearer, wherein the plurality of transport channels are associated with a communication state of the user equipment, each of the plurality of transport channels is mappable with logical channels of the radio bearer, and the logical channels provide information to be transmitted by the transport channels; and remapping the logical channels onto a different one of the plurality of transport channels in response to a message transmitted between the base station and the user equipment, wherei