SERVICE MOBILITY AND RECOVERY IN COMMUNICATION NETWORKS

摘要

A method improves mobility and service recovery for a user in a wireless communication network (Fig. 2). Service information concerning the user is stored in a registrar. A subscription message is sent from a user terminal to the registrar. A header in the subscription message contains a unique indication. In response to the subscription message containing a unique indication in a header, the registrar returns a notification message to the user terminal. The payload of the notification message includes service information for the user to be used by the user terminal for communication services.