3GPP Concept of QoS

3GPP Standard TS 23.207 provides the framework for end-to-end GPRS and UMTS.  The end-to-end QoS architecture is provided in Figure below. It’s describes the interaction between the TE/MT (Terminal Equipment/Mobile Terminal) Local Bearer Service, the GPRS Bearer Service, and the External Bearer Service, and how these together provide Quality of Service for the End-to-End Service. 

It’s also describes IP level mechanisms necessary in providing end-to-end Quality of Service and possible interaction between the IP level and the GPRS level, as well as the application level and the IP level. This covers different architectural aspects of the end-to-end Quality of Service concept and architecture with varying level of detail. In general, other specifications shall be referred to for further details; these other specifications enable the reader to acquire the full understanding of the end-to-end Quality of Service concept and architecture. 

QoS Management Functions in the Network: to provide IP QoS end-to-end, it is necessary to manage the QoS within each domain. An IP BS (Base Station) Manager is used to control the external IP bearer service. Due to the different techniques used within the IP network, this communicates to the UMTS BS manager through the Translation function. The QoS management functions for controlling the external IP bearer services and how they relate to the UMTS bearer service QoS management functions.

QoS Conceptual Model: there are many different end-to-end scenarios that may occur from an UE connected to an UTMS network. The following examples depict how end-to-end QoS will be delivered for a number of scenarios that are considered to be significant.