Policy-based orchestration of Web/IMS services

We discuss the creation and evaluation of an IP Multimedia Subsystem (IMS) based smartphone service that originally started as a web-only application. By using a simple policy framework, additional IMS-based services such as user registration, subscription, authentication and authorization are orchestrated with the web-based application via a general OMA-based service framework. This service plane further inter-works with lower layer IMS-based network control plane functions to provide network admission control and QoS control for users on EPON access network and mobile networks. The end result is that the original web-based application is now part of the converged network IP video service. Through this experiment, we have demonstrated the technical feasibility of using an OMA prescribed policy-based framework for combining web-based and IMS-based services. In particular, we have successfully carried out mobile-based service invocation and orchestration, and investigated the usage of the service plane functions in service provisioning over a heterogeneous network environment.