Patent · US Active

Managing user registrations of roaming IMS users

US8687557B2 · kind B2 · utility

4Cited by

3References

33Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Heiko Perkuhn · Bonn, DE
Marc Vorwerk · Aachen, DE
Rene Rembarz · Aachen, DE
Rosa Maria Martinez Perallon · Aachen, DE

Key dates

Filing date	May 19, 2009
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Aug 10, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04W8/06
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Techniques for managing a registration of a roaming user terminal (116) in its IMS home network (102) based on a roaming agreement between the visited IMS network (104) and the home IMS network (102) are described. According to one embodiment of the invention, a method for managing user registrations in the first IMS network (102) is provided. The method may be performed in an I-CSCF (106) of the first IMS network and comprises the steps of determining a status change in an automatically established roaming agreement with the second IMS network; and sending, based on the determination result, roaming status update information (204) to an HSS (110) associated with the first IMS network for initiating a registration update of the user.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.