The defined architecture (Activity 3.1) was built on top of heterogeneous access network, but spanning from terminals, through access devices and to core entities, hiding the details of the different technologies. This allows the provisioning of client entities and services in an appropriate way for pervasiveness services support.
To achieve the foreseen objectives, WP3 architecture needs to integrate, in a smooth and efficient way, the required components that most likely will build a B3G operator and being capable to adapt to different business models. With that purpose, WP3 work is divided in three sub-systems, corresponding to three main technical areas of work:

• QoS and Policy Based Network Management System (PBNMS) (Activity 3.2)
• Security and Authentication, Authorization, Accounting, Auditing and Charging (A4C) (Activities 3.3 and 3.4)
• Multimedia Service Provisioning Platform (MMSPP) (Activity 3.5)

In WP3 architecture, these three sub-systems are integrated, providing overall network management, QoS control, security, A4C and service provisioning, with a higher value than the total of the components per se. Some of these have extensions to both lower (WP2) and upper (WP4) layers, via appropriated control interfaces and APIs, making the overall DAIDALOS architecture implementation a solid basis to demonstrate what can be the future B3G scenarios. In such environment, mobility is of crucial importance. WP3 work addresses several mobility scenarios, like user, terminal and session mobility, via the integration and development of novel concepts built on top of mechanisms like Mobile IPv6 and FastHandovers, and covering both intra and inter-domain aspects.

• Different QoS service models were specified and implemented (terminal initiated, server initiated and network initiated), integrating a scalable QoS architecture, based on domains of responsibility (Access and Core Networks) and appropriate network monitoring, integrating in a suitable manner both IntServ and DiffServ QoS models;
• Support for virtual entities (VID) with integrated security and associated network and services user profiles, was provided, by means of a framework including EAP (Extensible Authentication Protocol), Key Management and PKI, and credentials management integrated with SAML for authorisation and integrated with A4C and including non-repudiation and SLA compliance auditing;
• Advanced multimedia service provision is integrated, having as basis the SIP protocol as part of a service control network where a Content Adaptation Overlay Network, Service Discovery components and streaming services are identified and being the main foundation for Pervasiveness Services development.
• Broadcast/multicast smooth support, addressing above areas, especially resources management and carousseling scenarios.

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