METHOD AND SYSTEM FOR ROAMING OF A USER EQUIPMENT IN A VISITED PUBLIC LAND MOBILE NETWORK

摘要

The present invention relates to a method for roaming of a user equipment in a visited mobile communication network, comprising the steps of a) Registering the user equipment to the visited network other than a home network of the user equipment b) Forwarding signaling for home service functions of the user equipment from the visited network to the home network c) Executing home service functions in the home network d) Returning results of the executed home service functions to the user equipment in the visited network e) At least part of the home service functions of the home network are virtualized, f) The virtualized home service functions are transferred to the visited network for the respective user equipment by using a service cloud network connected to the home network and the visited network, and g) The virtualized home service functions are executed in the service cloud network and/or in the visited network. The present invention relates also to a system for roaming of a user equipment in a visited public land mobile communication network.