3 generation systems such as UMTS will support the enrichment of the traditional service provision schemes via partnering of mobile network operators with other players in the marketplace, such as value added service providers and content providers. These partnerships will raise the bar on service provision requirements as well as roaming configurations. Roaming requirements for future mobile t...

Personal mobility (PM) is one of key issues in realizing emerging third generation mobile communication systems such as International Mobile Telecommunication 2000 (IMT2000) and it can be realized through universal personal telecommunication (UPT) service. A PM management scheme is considered in order to manage PM information related to UPT users for incall registration/deregistration, incall r...

The rapid growth in the telecommunication market increases the performance requirements on applications supporting telecommunication networks. Many of these applications are based on commercial Relation DataBase Management Systems (RDBMS), a component which tends to become a bottleneck. Therefore, it is important to fully use the capacity of the database. A database server can usually not be fu...

nels in the future. Furthermore, teleservices process more Emerging telecommunication services use, store, or transmit sensitive personal data to form individual network services. We suggest an add-on approach to realize secure telecommunication services which saves the huge investments into existing network infrastructure of the ISDN. This is done by adding trusted runtime environments that co...

Contractual relation between customers and telecommunications service providers are becoming increasingly complex, due largely to changes in the marketplace and growth in the number and complexity of services on offer. In order to guarantee a certain quality of offered service and in response to customer needs, some mechanisms of service level management must be applied. The service level manag...

Disaster management using mobile telecommunication networks provides a new and attractive possibility to save human lives in emergencies. With this contribution, we present a possible disaster management system based on mobile telecommunication. In order to use such a system in the real world, security requirements such as availability, accountability, integrity and confidentiality have to be e...

In this paper, we propose a method to diagnose the faults in the telecommunication networks by using the Realistic Abductive Reasoning Model 1]. This model uses abductive inference mechanism based on the parsimonious covering theory with some new features added to the general model of diagnostic problem solving. The fault diagnosis knowledge is assumed to be represented in the form of causal ch...

The elicitation, modeling and analysis of requirements have consistently been one of the main challenges during the development of complex systems. Telecommunication systems belong to this category of systems due to the worldwide distribution and the heterogeneity of today’s telecommunication networks. Scenarios and use cases have become popular for capturing and analyzing requirements. However...

Network redimensioning (medium term planning) means to determine volume of telecommunication resources, necessary to serve given traffic offered taking into account the prescribe Quality of services (QoS). Two different network redimensioning methods are considered in this paper. The aim of the research is comparison between network redimensioning method, using ITU E.600 traffic offered definit...

Problems of multiservice network modeling on the basis of hybrid methods – methods of graph theory and queue system are considered in the article. Model NGN-network is presented in the form of exponential Petri net. For calculation of probabilistic and time characteristics of network on the basis of Petri net analytical expression was received. On the basis of this expression calculation of tim...