An apparatus arranged to be comprised in a base station for user equipment, UE, radio capability signaling, the apparatus comprising circuitry configured to: manage communication with a first UE as part of an initial attach procedure, wherein a first set of UE capability information is established as part of the initial attach procedure; identify a first temporary operating mode for the first UE associated with a second set of UE capability information, the first temporary operating mode being sent by the first UE , wherein temporaiy operating modes are one of: a normal mode , a low data rate mode and a limited mobility mode , the temporary operating modes identify different subsets of UE capabilities to a network, and the temporary operating modes may be switched so that a single UE can operate in a different mode at different times with different subsets of the UE's capabilities active; initiate communication, in response to identifying the first temporary operating mode for the first UE , of a UE mode match indication message from the base station to a mobility management entity, MME, , wherein the UE mode match indication message comprises the first temporary operating mode; receive , at the apparatus of the base station , a UE mode match response from the MME , wherein the UE mode match response comprises a temporary operating mode of the UE , stored in the MME ; initiate communication, in response to receipt of the UE mode match response , of a UE capability enquiry from the base station to the first UE ; and receive , at the apparatus of the base station from the first UE , a UE capability message comprising the second set of UE capability information. manage communication with a first UE as part of an initial attach procedure, wherein a first set of UE capability information is established as part of the initial attach procedure; identify a first temporary operating mode for the first UE associated with a second set of UE capability information, the first temporary operating mode being sent by the first UE , wherein temporaiy operating modes are one of: a normal mode , a low data rate mode and a limited mobility mode , the temporary operating modes identify different subsets of UE capabilities to a network, and the temporary operating modes may be switched so that a single UE can operate in a different mode at different times with different subsets of the UE's capabilities active; initiate communication, in response to identifying the first temporary operating mode for the first UE , of a UE mode match indication message from the base station to a mobility management entity, MME, , wherein the UE mode match indication message comprises the first temporary operating mode; receive , at the apparatus of the base station , a UE mode match response from the MME , wherein the UE mode match response comprises a temporary operating mode of the UE , stored in the MME ; initiate communication, in response to receipt of the UE mode match response , of a UE capability enquiry from the base station to the first UE ; and receive , at the apparatus of the base station from the first UE , a UE capability message comprising the second set of UE capability information. <EOS>