A method comprising: receiving information on a user equipment, UE, indicating combinations of dedicated channel medium access control, MAC-d, flows that are allowed to be multiplexed within an enhanced uplink, EU, medium access control, MAC-e, protocol data unit, PDU, wherein the information is received from a radio network through radio resource control, RRC, signaling; establishing a transport format combination set, TFCS and selecting a transport format combination, TFC, from the TFCS based on a transmission priority of a plurality of logical channels mapped to each of a plurality of transport channels, TrCHs; determining if the TFC is supported by available transmission power of the UE, wherein the UE is determined to be in an excess power state when the TFC is not supported, wherein the TFC is blocked from transmission when the UE is in the excess power state; defining a set of MAC-d flow combinations that are supported for transmission even when the UE is in a transmit power restricted state; and multiplexing a plurality of MAC-d flows in a particular transport format combination, TFC, within the MAC-e PDU in accordance with an allowed combination of MAC-d flows as indicated by the received information, wherein each MAC-d flow of the plurality of MAC-d flows is associated with a Quality of Service, QoS, attribute and multiplexing the plurality of MAC-d flows maintains QoS requirements, and further wherein data of each of the plurality of MAC-d flows is processed in accordance with the TFC being allowable or not allowable according to whether the UE is in the excess power state and whether the TFC is from among the set of MAC-d flow combinations that are supported for transmission even when the UE is in the transmit power restricted state. receiving information on a user equipment, UE, indicating combinations of dedicated channel medium access control, MAC-d, flows that are allowed to be multiplexed within an enhanced uplink, EU, medium access control, MAC-e, protocol data unit, PDU, wherein the information is received from a radio network through radio resource control, RRC, signaling; establishing a transport format combination set, TFCS and selecting a transport format combination, TFC, from the TFCS based on a transmission priority of a plurality of logical channels mapped to each of a plurality of transport channels, TrCHs; determining if the TFC is supported by available transmission power of the UE, wherein the UE is determined to be in an excess power state when the TFC is not supported, wherein the TFC is blocked from transmission when the UE is in the excess power state; defining a set of MAC-d flow combinations that are supported for transmission even when the UE is in a transmit power restricted state; and multiplexing a plurality of MAC-d flows in a particular transport format combination, TFC, within the MAC-e PDU in accordance with an allowed combination of MAC-d flows as indicated by the received information, wherein each MAC-d flow of the plurality of MAC-d flows is associated with a Quality of Service, QoS, attribute and multiplexing the plurality of MAC-d flows maintains QoS requirements, and further wherein data of each of the plurality of MAC-d flows is processed in accordance with the TFC being allowable or not allowable according to whether the UE is in the excess power state and whether the TFC is from among the set of MAC-d flow combinations that are supported for transmission even when the UE is in the transmit power restricted state.