Development Of New Telecommunications Services Research Articles

Mobile Network Operators’ Assessment Based on Drive-Test Campaign in Urban Area for iPerf Scenario

The development of new telecommunication services requires the implementation of advanced technologies and the next generations of networks. Currently, the Long-Term Evolution (LTE) is a widely used standard. On the other hand, more and more mobile network operators (MNOs) are implementing the fifth-generation (5G) New Radio standard in their networks. It allows for increasing throughput, spectral, and energy efficiency and maximizing coverage, while reducing latency. The effectiveness of the introduced changes is measured by assessing the quality of service (QoS) in mobile networks. The paper presents the result evaluation of the QoS measurement campaign carried out using the drive test method in an urban area for four MNOs. We analyze the data transmission scenario, which is the basis of most modern telecommunications services. The result comparison provides an assessment of the 5G service implementation advancement by MNOs. In this analysis, we consider many QoS metrics (e.g., session time, throughput, and round-trip time) and parameters defining the radio signal quality (i.e., reference signal received power, signal-to-interference-plus-noise ratio). Our work also included searching for relationships between these parameters, using a correlation analysis. It allows for the selection of uncorrelated parameters to assess the quality of network, i.e., MNO evaluation, in terms of the provided QoS.

Learning from the failure: experiences in the Korean telecommunications market

We performed a case analysis to derive factors leading to telecommunications service failure. In this study, 15 failure cases in the Korean telecommunications service industry were analyzed. From the analysis, eight factors leading to telecommunications service failure were found. The characteristics of eight failure factors were analyzed depending on the phases of the NPD process and the types of the services. The characterization of the failure factors provided important managerial implications for the efficient service development process. In the ever-changing business environment, simply following previous success factors never allows for the duplication of success. Learning from the failure case analysis provides important insight for the development of new telecommunications services.

An Integrated Object-Oriented Approach to Telecommunications Service Engineering

The telecommunications industry is currently facing many challenges, due to the deregulation of its markets and the progressive convergence of telecommunications and distributed computing. Consequently, there is a growing demand for a great variety of new specialised services. TINA-C and OSA are the two most important architectural frameworks which promise to make the future open information market a reality. This paper compares these two frameworks and proposes an integrated approach for the development of new telecommunications services, which has the form of anarchitecture consisting of an object-oriented methodology for service design and provision and a service support environment.

Development of new telecommunications services using an expert system

This paper outlines the functionality of an expert system currently under development. The ‘Requirements Assistant for Telecommunications Services‘ (RATS) is designed to actively assist the development of new telecommunications services. It helps during the early parts of the development life cycle, during requirements capture and analysis, leading to formal specifications of the service at different stages of refinement. Facilities for requirements traceability, rationale and documentation as well as impact analysis of requirements change are provided. The tool contains comprehensive knowledge bases with the main characteristics of the telecommunications domain and the development process of telecommunications services, which enable the tool to actively guide the software developer. Assistance is provided for three dimensions of the development process of functional requirements — refinement, formality and completeness. The output of the RATS tool enables a smooth transition to the ITU-recommended Specification and Description Language (SDL), which allows automated analysis of static and dynamic properties as well as code generation.