FL-QOSHSPA

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Implementing Quality of Service in HSPA/4G

Course Objectives

The evolution of mobile networks from telephony based circuit switched systems towards IP based systems introduces many challenges. While traditional telephony platforms offer ‘built-in’ guarantees on high voice quality as part of the system design, the packet based IP platforms require careful planning, configuration and tuning in order to provide acceptable quality. As the ‘all-IP’ vision is fully implemented in the 4G (LTE) standards, the overall service quality relies heavily on the IP QoS policy, to provide the end to end quality of experience.

The challenge from an all-IP implementation is found on the application development, as well as on the mobile IP network infrastructure: while applications must provide QoS awareness, the mobile network must enforce QoS policies down to each transmission link. Thus, the IP convergence clearly will impact the end-to-end quality of experience.

Connectivity across mobile IP networks is characterized by variable throughput, delay variations and different packet loss rates. These characteristics are, to a certain level, provisioned by the operator and controlled by network mechanisms in the radio access and core network systems. This course delivers a detailed description on the new IP centric 4G mobile network and elaborates on the mechanisms that control the Quality of Service in 4G, as well as in existing 3G HSPA systems. Furthermore, a number of KPIs are studied and their attributes and parameter values are explained. Important mobile network features, including terminal mobility, in idle and connected mode are also considered, as far as QoS aspects are concerned.

Audience

The course content is adopted to match the needs of IP professionals with various background and tasks. The target audience should be IT and/or IP networking professionals that required a wider understanding of the new IP based mobile systems and their QoS capabilities; those dealing with design, operations, planning and performance management tasks, as well as application developers that require a deeper understanding on the QoS behaviour of the IP based mobile communications.

Prior knowledge

Candidate participants should have working knowledge from areas such as IP networking and routing, performance management or application system design.

Course Content

After course completion, the participants will be able to:

Explain the basic mobile functionality and how they affect the QoS in data sessions

  • UMTS/HSPA radio access network and protocols
  • 4G/LTE radio access and major differences with previous generation
  • The core network nodes for IP connectivity in 3G and 4G: CN and EPC
  • Call and session set up flows to and from a mobile terminal
  • Major mobility and connectivity principles UMTS/HSPA and 4G/LTE
  • How Handover and Cell change procedures affect the end to end QoS
  • Differences and similarities between 3G UMTS and 4G LTE implementations

Explain the mobile data connectivity principles and their QoS mechanisms

  • Procedure for mobile radio connections establishment in 3G and 4G
  • Mobility features handover, cell selection/reselection and cell change for Data Bearers
  • Retransmission mechanisms on Radio links and physical layer (RLS, ARQ, HARQ)
  • Admission and Congestion control, call drop and re-direction
  • Scheduling and priority handling between service classes and between data users
  • The role of ARP, TP and GBR/MBR in RAB/E-RAB definitions
  • Applicable KPIs revealing the data connection qualities

Explain the attributes on important KPIs and the controlling parameters

  • Radio accessibility related KPIs
  • Retainability related KPIs associated with mobility (handover/cell change, call drop)
  • Data service... Läs mer

Course Content

After course completion, the participants will be able to:

Explain the basic mobile functionality and how they affect the QoS in data sessions

  • UMTS/HSPA radio access network and protocols
  • 4G/LTE radio access and major differences with previous generation
  • The core network nodes for IP connectivity in 3G and 4G: CN and EPC
  • Call and session set up flows to and from a mobile terminal
  • Major mobility and connectivity principles UMTS/HSPA and 4G/LTE
  • How Handover and Cell change procedures affect the end to end QoS
  • Differences and similarities between 3G UMTS and 4G LTE implementations

Explain the mobile data connectivity principles and their QoS mechanisms

  • Procedure for mobile radio connections establishment in 3G and 4G
  • Mobility features handover, cell selection/reselection and cell change for Data Bearers
  • Retransmission mechanisms on Radio links and physical layer (RLS, ARQ, HARQ)
  • Admission and Congestion control, call drop and re-direction
  • Scheduling and priority handling between service classes and between data users
  • The role of ARP, TP and GBR/MBR in RAB/E-RAB definitions
  • Applicable KPIs revealing the data connection qualities

Explain the attributes on important KPIs and the controlling parameters

  • Radio accessibility related KPIs
  • Retainability related KPIs associated with mobility (handover/cell change, call drop)
  • Data service integrity, KPIs related to down switching, BLER, re-transmissions
  • Target KPI values and SLA issues that will increase quality and satisfaction

Explain dependencies between network configurations and service behaviour

  • Cell selection and reselection parameter options
  • Handover and cell change controlling parameter options
  • Mobility management based on frequency/cell/service/IMSI/system level priorities
  • DHCP, lease time, address allocation and invocation, public and private IP addresses
  • Inactivity and expiration timers, PDP context/EPS bearer procedures
  • TCP capabilities, configuration options impacting on the behaviour of data connections
  • The impact of operator NAT and Firewall on end user service behaviour
  • Stateful firewall protection and deep packet inspection
  • Application (VPN, HTTP, VoIP etc.) dependant capabilities
  • APN configuration options and the impact on the end user service behaviour
  • Enhanced content charging and Content filtering
  • Application detection and optimization
  • Session recovery and Fault containment

Explain the importance of the IP Transport network in QoS

  • General considerations on transport network implementations
  • QoS classes, QCI and traffic handling priorities in UMTS and LTE
  • Internet Protocol, IP and Diffserv mechanisms
  • The role of Carrier Ethernet in Backhaul networks
  • Calculating HSPA/LTE peak rates and RAN TN link dimensioning
  • Traffic aggregation with service differentiation in RAN backhaul
  • Recommended QoS mapping of CS and PS on the IP/Ethernet transport network
  • 3G/4G Base Station scheduler algorithm options for voice and data services
  • IP/MPLS support for QoS in operator backbone networks

Utbildningen levereras i samarbete med

Kurs-ID: FL-QOSHSPA
Längd: 2 dagar
Pris exkl moms: 12 900 kr

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Kan betalas med:
TRAINING CARD

Avtalsrabatter och kampanjer kan ej nyttjas på denna kurs.


Ort och datum

Stockholm
21 nov – 22 nov
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