IP multimedia subsystem development concept

DOI: 10.31673/2412-4338.2019.048189

Abstract

Increasing number of services for subscribers in mobile networks has led to increasing number of identical features that are duplicated on the nodes of the servers serving these services. These factors, as well as the need to integrate services that combine heterogeneous media environments, make it urgent to unify the service-building platform.
The prerequisites for the emergence of the IP Multimedia Subsystem (IMS) concept have been investigated, the strategy and concept for the development of the IMS by different operators, both cellular and wired, have been determined, depending on their business profile and other conditions. The analysis of topical services, which are expedient to be implemented on the IMS platform and implemented on the networks of operators. It is determined that convergence is a promising direction for the development of mobile operators. In particular, within the framework of the provision of services and services, convergence is carried out in order to minimize the outflow of telephone traffic to other networks and launch new multimedia services, within the optimization of infrastructure - to reduce operating costs, to expand the nomenclature of services towards multimedia.
The characteristics of the traffic generated by various multimedia services, the general approach to parameterization of multimedia traffic are defined. A multimedia traffic representation of some service is used as a random process. The parameters that can be used to describe the corresponding service during one session with the service subscriber are highlighted: the maximum number of blocks of information that the corresponding service generates per unit time, peak traffic value, minimum traffic value, traffic packet coefficient, average peak duration. These parameters can be used to describe the service during one session with the service subscriber. A mathematical model describing traffic has been constructed, key dependencies have been identified.

Keywords: service, IMS platform, information system, client, simulation, IP protocol, converged architecture.

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