System for simultaneous registration of VoIP network for dual mode mobile telephone stations
First Claim
1. A system for maintaining multiple service registrations for a dual mode mobile subscriber station comprising:
- means, responsive to receipt of a registration request from said mobile subscriber station, for registering a serving Mobile Switching Center in a first memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for access for said mobile subscriber station; and
means, responsive to receipt of a registration request from said mobile subscriber station for IP access, for registering a serving IP based Mobile Switching Center in a second memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for IP access for said mobile subscriber station.
4 Assignments
0 Petitions
Accused Products
Abstract
The dual registration system tracks two serving Mobile Switching Centers for each subscriber. The registrations are differentiated as IP Multimedia Subsystem for voice call delivery purposes and CDMA Mobile Switching Center for IP access and other non-voice services. The registration message from the IP Multimedia Subsystem is enhanced via protocol extensions to include an indication that this registration is from the IP Multimedia Subsystem and is to indicate the target Mobile Switching Center for IP Multimedia Subsystem services, such as VoIP. The Home Location Register is enhanced to store two Mobile Switching Centers as the serving Mobile Switching Centers for the dual mode subscriber. The Home Location Register logic is extended to route service to the appropriate Mobile Switching Center depending on service offered, subscriber preferences, and the registration status.
38 Citations
16 Claims
-
1. A system for maintaining multiple service registrations for a dual mode mobile subscriber station comprising:
-
means, responsive to receipt of a registration request from said mobile subscriber station, for registering a serving Mobile Switching Center in a first memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for access for said mobile subscriber station; and
means, responsive to receipt of a registration request from said mobile subscriber station for IP access, for registering a serving IP based Mobile Switching Center in a second memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for IP access for said mobile subscriber station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for maintaining multiple service registrations for a dual mode mobile subscriber station comprising:
-
registering, in response to receipt of a registration request from said mobile subscriber station for access, a serving Mobile Switching Center in a first memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for access for said mobile subscriber station; and
registering, in response to receipt of a registration request from said mobile subscriber station for IP access, a serving IP-based Mobile Switching Center in a second memory location in a Home Location Register for said mobile subscriber station as the serving apparatus for IP services for said mobile subscriber station. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
Specification