Course 579: HSPA+/LTE QoS Training Course - TONEX.com

HSPA+/LTE QoS Training Course examines how the HSPA/HSPA+ network supports end-to-end Quality of Service. The different functions and protocols supporting end-to-end QoS are described, with focus on the HSPA/HSPA+ and LTE Bearer Service and the solutions in the PS, EPC and IMS domains.

Upon completion of this training, the participants will be able to successfully describe the HSPA+/LTE QoS elements and having used them, know what to expect when the QoS features are employed in UMTS networks.

Upon completion of this course, the participant will:

• Understand what Quality of Service to expect from the UMTS network and what requirements this put on the different nodes in the HSPA+/LTE architecture.
• Understand what different solutions that can be used to enable QoS in a packet switched network, and the benefits and limitations of each solution.
• Understand how end-to-end Quality of Service could be implemented using IP and IMS mechanisms.
• The implementation of QoS on each interface in the HSPA/HSPA+/LTE architecture is discussed, from the radio interface and ATM network to the IP solutions in the backbone and the External Bearer Service.
• The QoS solution of the IP Multimedia Subsystem (IMS) is described

HSPA/HSPA+/LTE Evolution

• UMTS architecture release -99 to release 11
• The notion of QoS mechanisms in GERAN, HSPA, HSPA+ and LTE/EPC

Quality of Service Overview

• Explains what and why of Quality of Service
• QoS framework
• The range of QoS mechanisms
• QoS models- Differentiated Services (DiffServ), Integrated Services (IntServ) and MPLS

General Requirements for QoS

• End User Requirements for QoS
• Characteristic of asymmetric nature between two directions
• QoS has to be provided end-to-end
• QoS parameters
• Efficient use of radio capacity.
• Independent evolution of Core and Access networks

QoS fundamentals and the need for IP QoS

• Differentiated Services QoS architecture and its enabling QoS functionality
• Integrated Services QoS model and its enabling QoS functions
• RSVP
• ATM, Frame Relay, and IEEE 802.1 QoS technologies and how they interwork with IP QoS
• MPLS and MPLS VPN QoS and how they interwork with IP QoS
• MPLS traffic engineering
• Routing policies, general IP QoS functions, and other miscellaneous QoS information

The HSPA+/LTE/EPC end-to-end QoS architecture

• functions and protocols
• The UMTS Bearer Service
• Details of QoS Classes
• Conversational
• Streaming
• Interactive
• Background

HSPA+/LTE/EPC network architecture - where is QoS relevant ?

• HSPA+/LTE/EPC QoS architecture
• HSPA+/LTE/EPC traffic class concept
• HSPA+/LTE/EPC IMS Quality of Service (QoS)
• Service based Local Policy (SBLP)
• Policy Control Function (PCF)
• End to End QoS architecture
• QoS allocation scenarios
• QoS Tokens
• Architecture of IMS
• Components and functions (PCRF, P-CSCF, HSS, MGCF, MGW etc.)
• Interfaces and Protocols
• Addressing

Technical Requirements for QoS

• Mapping between application requirements and UMTS services
• UMTS QoS architecture issues
• Overview of different Levels of QoS

What is QoS in HSPA+/LTE?

• Traffic Parameters
• Available QoS classes and parameters
• Signaling flows

HSPA+/LTE/EPC Bearer Service Attributes

• Traffic class ('conversational', 'streaming', 'interactive', 'background')
• Maximum bitrate (kbps)
• Guaranteed bitrate (kbps)
• Delivery order (y/n)
• Maximum SDU size (octets)
• SDU format information (bits)
• SDU error ratio
• Residual bit error ratio
• Delivery of erroneous SDUs (y/n/-)
• Transfer delay (ms)
• Traffic handling priority
• Allocation/Retention Priority
• Source statistics descriptor ('speech'/'unknown')

Simplification of HSPA+/LTE/EPC QoS model

• End-to-end IP Bearer
• Application level QoS
• HSPA+/LTE/EPC Bearer
• HSPA+/LTE/EPC QoS
• Core network
• External Network
• Different channel types
• DiffServ
• External QoS

mapping QoS to HSPA+/LTE/EPC services

• Streaming services and IP multimedia system
• End-to-end QoS signaling scenarios
• End-to-end QoS provisioning scenarios
• QoS management functions
• QoS signaling
• RSVP
• DiffServ Code Points
• PDP context
• EPS Bearer
• End-to-End QoS needs QoS provisioning
• Overprovisioning
• DiffServ
• IntServ
• MPLS/GMPLS
• Communication establishment delay
• Probability of blocking
• Effective bandwidth
• Measuring the Effective Bandwidth Usage
• Collection of traces
• Traces synchronization
• Traces shaping

DiffServ-based Traffic Handling Mechanisms for the UMTS Core Network

• HSPA+/LTE/EPC QoS Architecture
• HSPA+/LTE/EPC QoS classes to the DiffServ Code Points (DSCPs)
• The end-to-end QoS management
• Control plane QoS management functions
• Data plane QoS management functions
• The UMTS specifications define four QoS classes
• Diffserv/MPLS enabled IP-backbone
• Traffic Conditioning
• End-to-end delay for voice and video
• Packet loss for voice and video