management of dienstequalitu00e4tsprofilen in a mobiltelekommunikationssystem

摘要

The invention relates to a situation where a user terminal (UE1) is roaming in a visited network. According to the invention, if the service capability of the visited network is higher than the capability defined in a service profile of the user terminal (UE1), a visited network node (SGSN2) upgrades (2-4) the service profile according to the service capability of the visited network. After that the visited network finds out (2-8, 2-9) information on a service capability of the user terminal (UE1). If the service capability of the user terminal (UE1) is lower than the upgraded service profile, the visited network downgrades (2-10, 2-12) the service profile of the user terminal (UE1) according to the service capability of the user terminal (UE1).