Menetelmä lähiverkon tiedonsiirtolaitteen käyttäjätietojen välittämiseksi ja lähiverkkojärjestelmä

摘要

The invention relates to a method of transferring user data of a roaming data transmission device of a wireless local area network between a visited network and a home network, and to a wireless local area network system. The method comprises establishing (202) a connection to the roaming data transmission device via a service access point of the visited network. The method further comprises: transferring (204) the user data of the data transmission device communicating with the service access point from an authentication server of the visited network to a user data server using an identification connection; identifying (206) the home network of the wireless data transmission device communicating with the service access point on the basis of the user data; retrieving address data of a second user data server from a domain name server connected to the user data server of the visited network on the basis of the user data for establishing the identification connection; establishing the identification connection from the first user data server to the second user data server connected to the home network via a service network connecting the first and second user data servers; and transferring (208) the user data by using the established identification connection to the authentication server of the home network.