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

Why is it so difficult to achieve and provide QoS in packet-switched networks?
Why is sophisticated packet network engineering becoming more and more important
nowadays and in the future?
How do all these QoS-terms like QoS-profile, QoS-attribute and QoS-class or traffic class
relate to each other?
Which QoS-attributes are required in a QoS-Profile?
How do VoIP compare to legacy voice services, considering resource consumption and
requirements? What can we do to optimize our network accordingly?
What are the settings of these QoS-attributes to provide suitable performance for different
service types?
How do QoS-related functions like policing, admission control and traffic shaping relate to
each other?
What are the differences between the QoS-architectures DiffServ, IntServ and MPLS and how
do they operate in detail?
Which parameters are used in different layer 1 / layer 2 environments like for instance
WIMAX- or UTRA-networks to tag certain QoS-levels?
How do these layer 1 / layer 2 environments interact with other protocols that need to
simultaneously operate e.g. for session setup or user data transfer?
How does an end-to-end scenario look with full QoS-provisioning?
Is it possible that a DSL-modem / WLAN-router at home provides QoS? If yes, how does this
work?

The book is mainly targeted at network operator staff who need to upgrade today’s networks to become QoS-aware.
However, the book is also a must for everybody on the vendor side who involved in one section of the overall network to design QoS-aware equipment.

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