Abstract:

The convergence of the control layer of the Next Generation Network (NGN) requires the call control model supporting the media control in heterogeneous network environment. Based on the definition of media control models, the limitation of the media control models in existence was analyzed aiming at the characteristics of NGN. A novel media control model based on the abstraction of media control states with specific control protocols adaptation was proposed. The application proved that the model in supporting media control in heterogeneous network environment of NGN had the capability to converge the control layer of NGN, as well as the flexibility and extensibility of the model.

Key words: next generation network, media control, call control, network convergence