The disclosure relates to a positioning node 54, a CN node 53, a RN node 52, and a UE 51 of a wireless network, and to a related method of supporting UE positioning. The method comprises transmitting UE radio access capability information (S30) and/or radio network node capability information (S10) to the positioning node 54. The transmission of UE radio access capability information is either unsolicited or triggered by a request (S20). The UE radio access capability information may be transmitted from the CN node (S31), from the RN node (S32) or from the UE (S33), and the RN node capability information is received from the RN node itself (S10). The positioning node 54 supports positioning of the UE 51 based on the received UE radio access capability information and/or the radio network node capability information.