Remote Service Invocation Through Heterogeneous Networks Using Open Environments

Abstract

Current OSA/PARLAY standard defines an architecture that enables service application located into an ASP to invoke network services capabilities through an open standardized interface. Nevertheless, architectures proposed within this standard work are isolated from other OSA/PARLAY infrastructures belonging to other network operators. In this research paper we deal with the invocation of network services located in visited networks from applications attached to a Home Network using OSA/PARLAY interfaces. We propose an extension to the OSA/PARLAY Framework signaling system so that it will work in a multi-OSA environment. This enhancement will require the definition of new interface classes among Frameworks in order to manage global service execution. The proposed method adds a new Framework-to-Framework interface that allows applications attached to a home network the access to service capability servers located in visited networks. In this enhanced OSA/PARLAY architecture, the applications may access remote services without integrating or dealing with any network negotiation.