Schedule of Classroom Training -

Quality of Service (QoS) - Issues & their Resolution in evolved 3G and Next Generation Networks

Course DescriptionThis training course is a must for everybody who needs to setup, engineer, upgrade or operate packet-switched networks supporting both, real-time and best effort traffic. In the beginning of the training course we pinpoint to typical issues with QoS-definition and perception, depending on organizational association and service orientation. This part ends with a very important practical exercise and discussion about the basic question: Problem resolution through network engineering or over-provisioning? The following part reviews important QoS-profiles and attributes steming from 3GPP, IETF, WIMAX-Forum and from the ITU-T. We also define a generic QoS-profile with mandatory attributes and we assign value ranges to these attributes suiting specific applications. Special focus is on the determination of necessary bandwidth resources for different traffic types like voice, video or combinations. We point out the pros and cons of header compression and silence suppression. The training course continues with the elaboration of important QoS-techniques like admission control, traffic conditioning, policing and policy enforcement. Different approaches and their pros and cons are discussed and jointly elaborated. In the next part we review important IP-related QoS-architectures and their specifics, namely DiffServ, IntServ and MPLS. This part concludes with the presentation and review of layer 2 related QoS-tags like ATM-based VCI/VPI or the priority pointers as defined in IEEE 802. 1p. Almost the entire next chapter is dedicated to the detailed presentation and discussion of all messages of an example scenario, based on the IMS, which provides e2e QoS between two peers, applying two different access network types and intermediate backbone networks. The final chapter is dedicated to the clarification of how QoS is physically provided within the lower layers 2 and 1, specifically. At last we elaborate that QoS to a large degree is nothing else but intelligent scheduling, irrespective of whether it is applied in landline or wireless networks. However, we also point out the specific issues of QoS in mobile networks e.g. using HSDPA or HSUPA.

[3-day training course, Euro 2,420.- per participant]