ISAAR (Internet Service Quality Assessment and Automatic Reaction) a QoE Monitoring and Enforcement Framework for Internet Services in Mobile Networks

In order to achieve acceptable service quality, the broad spectrum of Internet services requires differentiated handling and forwarding of the respective traffic flows within increasingly “Internet Protocol (IP)” based mobile networks. The “3rd Generation Partnership Project (3GPP)” standard based procedures allow for such service differentiation by means of dedicated “GPRS Tunnelling Protocol (GTP)” tunnels, which need to be specifically setup and potentially updated as the mixture of client initiated service consumption changes. The ISAAR (Internet Service quality Assessment and Automatic Reaction) framework augments existing quality of service functions in mobile networks by flow based network centric quality of experience monitoring and enforcement functions. The following chapters state the current situation followed by the explanation of the ISAAR architecture in chapter 3 and its internal realisation in chapters 4, 5 and 6. Chapter 7 gives an overview of the required signalling procedures and interfaces followed by a summary and outlook chapter 8.