The present disclosure relates to user equipment (20) mobility between a first radio access network (11) arranged to operate according to a first radio access technology and a second radio access network (12) arranged to operate according to a second radio access technology. A user equipment (20) connected to the first radio access network (11) retrieves information associated with an anonymized temporary identifier assigned to the user equipment (20) by a radio access node (30) in the first radio access network (11), stores the information in the user equipment (20) and presents the temporary identifier to a radio access point (40) of the second radio access network, when seeking to connect.