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Price is for 4 days



4 days



On completion of this course, the participant will:

  • Define the key components of the LTE-EPC network
  • Specify roles of various EPC components
  • Appreciate the purpose of PCC functionality in IMS/LTE networks Understand how voice services can be delivered in LTE networks (CSFB
  • and VoLTE)
  • Appreciate how IMS and LTE-EPC are connected
  • Summarize key benefits and challenges of the EPC Describe a high-level session setup using the EPC Discuss how EPC supports inter-technology handover


Suitable for

 Professionals in the telecom and datacom business who need technical details on LTE-EPC design. This includes those in a design, test, systems engineering, sales engineering & network engineering.



 Mobile or fixed telecom or datacom background is required. GSM and UMTS network architecture & core knowledge.




1. Introduction to LTE EPC

  • Overall cellular system architecture Motivation for the EPC
  • Influence of IP convergence
  • EPC as part of EPS
  • Role of IMS
  • Services (VoIP, Web-browsing, and video streaming) in EPC
  • EPC Architecture
  • Core network requirements
  • Pooling of MME and S-GW
  • Legacy core networks
  • Elements of the EPC (HSS, MME, S-GW, and P-GW) and interfaces


2. Major Functions of the EPC

  • Authentication and security
  • Policy charging and control and QoS Packet routing
  • Mobility management
  • IP address allocation
  • LTE-EPC network planning


3. Network planning process

  • User/Traffic profile
  • Subscriber traffic demand
  • Node and link capacity modelling


4. LTE-EPC design process

  • LTE network architecture: nodes and interfaces
  • LTE interworking with UMTS
  • Control-plane user/traffic profile: Network attach, Default bearer establishment, Mobility events, State transition events, and Tracking area updating events
  • Service-plane user/traffic profile: VoIP and other packet services, CSFB
  • The effect of control/user plane traffic separation on LTE-EPC dimensioning
  • User/Traffic profile: signalling events, traffic volume demand
  • MME pools and selection
  • Tracking are planning
  • Design guideline and checklist
  • LTE Signaling Capacity Planning
  • Transport technology options Triggers for establishing a bearer
  • Idle <- -> Connected mode transitions
  • Signaling and data capacity planning for S1, S5, S6a, S10, S11, and Gx
  • Signaling for iRAT
  • Network topology
  • Node Capacity
  • Signalling capacity exercises
  • Session Setup using EPC
  • Overall call flow
  • Interaction between the E-UTRAN and EPC
  • Default IP Connectivity in EPC
  • Engineering requirements Default APN connectivity options QoS rules determination


4. Dedicated Bearer and QoS in EPC

  • Transport technology options Dedicated bearer setup operation Service flow and QoS management
  • Mobility and Roaming in EPC
  • Transport technology options Tracking area planning Signaling for S1 handovers Inter-RAT mobility
  • Role of GRX/IPX in EPC roaming
  • Mobility and roaming dimensioning exercises
  • Seamless Inter-technology Handover via EPC
  • EPC architecture for seamless mobility
  • EPC features in support of mobility Handover scenarios (LTE-UMTS, LTE-GSM) Inter-system handover exercises



  • CSFB architecture overview

  • CSFB options to UMTS

  • CSFB Voice Call MO and MT Signalling

  • Difference between CSFB-CSFB calls versus CSFB – IMS

  • Improving CSFB performance through MSC pooling architectures

  • MT Roaming Forwarding (MTRF) as the newest version of MT Roaming Retry (MTRR) to speed up calls at MSC borders

    IMS basics

  • IMS architecture

  • Nodes (P-CSCF, S-CSCF, I-CSCF, application servers etc) & interfaces

  • Policy Charging & Control: PCRF & PCEF functionality

  • Connectivity between IMS and LTE-EPC layers

  • End-to-End VoIP call

  • Dedicated bearer establishment

  • Policy and Charging Control (PCC)

  • IMS and PCC planning and dimensioning exercises

    LTE-EPC network design case study covering all discussed topics


LTE EPC Network Design

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