Abstract Systems and methods are disclosed that provide femto-based wireless coverage in
a communication network. This can involve providing an interworking function that …

Abstract Systems and methods for improved inter-technology handovers between wireless
networks are disclosed, in which a source radio access network operates on a first …

BACKGROUND As the mobile communication industry evolves increas ingly towards the
use of packet-switched networks, there is a need to Support the operation of a mobile station …

(57) ABSTRACT A mobile radio communication system and method of initi ating a circuit-
switched service at a mobile station over a System Architecture Evolution (SAE) core …

The present invention provides a method, device, and system for processing reverse single
radio Voice call continuity. The method includes, before handing over a voice service from a …

A system and method for allowing legacy circuit switched user equipment (CS UE) to
operate via a packet-switch system, such as an IP Multimedia Subsystem (IMS) system, is …

BACKGROUND Provisioning a femtocell on to a broadband network is generally deployed
to improve indoor wireless coverage pro vided by a wireless network operator. Although …

A system and method is provided for remote session control of IP Multimedia Subsystem
(IMS) sessions. A remote media flow may be established as part of an origination process …

A communication system extends IETF Session Initiation Protocol (SIP) signaling used by
IMS architecture. As a basic use case, initially a first (UE1)(controller) is in a media session …

A system and method for providing user equipment (UE) mobility between a packet-switched
system and a circuit-switched system is provided. In an embodiment, handover from a circuit …