公开(公告)号：AT390816T

公开(公告)日：2008-04-15

申请号：AT03701192

申请日：2003-01-10

Applicant: ERICSSON TELEFON AB L M

Inventor： DE GREGORIO JESUS ,  BARRIGA LUIS ,  PARDO-BLAZQUEZ AVELINA ,  WALKER-PINA JOHN

IPC: H04L29/06 ,  H04W8/06

Abstract: The invention provides a system and a method basically oriented for providing Single Sign-On services for a user roaming in a packet radio network of a Multinational Mobile Network Operator that includes a federation of National Network Operators, one of these National Network Operators holding the user's subscription. In particular, the telecommunications system includes a number of Service Providers having service agreements with the Multinational Mobile Network Operator federation for offering Single Sign-On services to subscribers of any National Network Operator included in the federation.