Integration of IMS and home gateway

IMS:
As a next-generation multimedia network, Ms completely isolates access, control, and applications, providing a general business platform for future multimedia applications.

Dlna :(
The digital life network alliance was founded in 2003 and its predecessor was the Digital Home Workgroup (dhwg ). Its members share a common vision: To establish an interoperability network for centralized management of personal computers (PCs), household appliances (CE), and mobile electronic devices inside and outside the home, create a seamless environment for sharing and developing new digital media and content services. Home gateway is a key component.

In terms of remote access to the home network, the security and Media QoS cannot be guaranteed and cannot provide a perfect and ubiquitous solution, the combination of IMS and home network proposed by Ericsson has solved this problem perfectly through Higa:

The Home IMS Gateway (Higa) is a logical function module with an isim card. It can be deployed in residential gateways or other online devices in the home. Higa
A backend user proxy (b2bua) and a SIP User proxy (sip ua) are provided to support intercommunication and interaction between devices in the home network and the IMS core network.

Package
SIP devices with sip ua can be registered on Higa. For IP devices, such as a set-top box compatible with dlna, Higa inside the SIP UA
Function can be used as a proxy for initialization and registration. B2bua then translates the SIP registration message into an IMS registration message and sends it to the IMS core network.

 

In this way, the IMS user agent can provide powerful support for b2bua isim-based security authentication.

 

After registration, the IMS intercommunication function of Higa can negotiate session parameters according to the following features:

• Functions of home devices (retrieving relevant data from the device management database );
• User preferences (managed by the identity management function ).

In this way, IMS can negotiate and configure media streams (such as video conferencing phones or on-demand movies) to ensure the QoS of the media.

Is the structural diagram of Higa: