Toward open service access to policy and charging control in evolved packet system

Abstract

The emerging multimedia communications are expected to enable simultaneous services with high throughput and low-latency requirements. Ensuring appropriate quality of service (QoS) for multimedia services is one of the challenges that network operators have to cope with in the Evolved Packet System (EPS). The mechanism which allows policy based authorization and usage control of QoS resources intended for multimedia traffic in EPS is called Policy and Charging Control (PCC). The paper investigates the capabilities for open access to PCC. The open access allows third party applications to access functions in the telecommunication networks through Application Programming Interfaces (APIs). The support of standardized APIs for PCC is evaluated. An approach to design new APIs for PCC is described. APIs implementation issues are addressed including interface-to-protocol mapping. The functional verification of application server for open access to PCC functions is formalized. The application server's functional behaviour is modelled and adaptive load control mechanism is proposed. The application server performance and utilization are evaluated.

A Centralized Model for Establishing End-to-End Communication Services via Management Agents

“…The architectural concept of the trusted 3P-based management system assumes a hierarchical organization of 3P agents at the international, national and regional levels. In [14], the open the traffic is crossing more than two domains, there is a risk that the E2E QoS requirements may not be achieved.…”

Mobile Edge Service for Intersystem Handover

“…Further, the open access to intersystem handover control enables creation and deployment of innovative applications. The benefits of open access to network functionality in the core network are studied in [24].…”

Application-Driven OAM Framework for Heterogeneous IoT Environments

“…The operations, administration, and management (OAM) in packet-based networks represents a generic technological framework that covers an area of awareness of the state of network resources, available capacity of individual network segments, connectivity verification, fault detection, and network management [5]. It is based on collecting information on the state of resources of different network domains and represents the enabler for the dynamic control of network resources through standard mechanisms defined for Next-Generation Network Architecture [6], 3GPP [7], and IETF [7].…”

“…On the standardization level, there is no unified understanding of required features and mechanisms that must be supported [5]. Following a review of related work in the field of standardization, specifications, and recommendations of the International Telecommunication Union (ITU-T) [8], Internet Engineering Task Force (IETF) [9, 10], Metro Ethernet Forum (MEF) [11], Institute of Electrical and Electronics Engineers (IEEE) [12], and other scientific sources [7, 13], it can be concluded that no such framework exists that would define the concept of OAM in the transport and application layers of a TCP/IP protocol stack. The existing methods and concepts are limited to physical, data-link, and network layers.…”