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Price is for 5 days



5 days



  • Upon completion of this course, the participant will:
  • Understand the air interface structure of LTE
  • Understand the fundamental air interface procedures of LTE
  • Understand how interworking functionality allows mobility between LTE, UTRAN and GERAN
  • Understand the operations of idle and connected mode
  • Understand the basic signalling procedures such as network attach, default
  • bearer setup, mobility and so forth
  • Understand how VoLTE/IMS fits with LTE and its prime role to provide voice services in LTE networks
  • Being able to define, measure suitable VoLTE KPIs for accessibility and retainability performance
  • Understand the different factors which could affect LTE call set-up and call drop performance
  • Identify the reasons behind abnormal signalling behaviour. Be able to use signalling information for network troubleshooting and optimisation
  • Understand the methodology for coverage and interference analysis
  • Explain the reasons for troubleshooting PS throughput
  • Sketch EPC architecture and determine various connectivity and related
  • protocols
  • Sketch the IMS network design and configuration


Suitable for

System engineers, network designers, cell planners and optimisation engineers interested in the basic system functionality and design of LTE, in the architecture, signalling procedures of EPC-LTE, troubleshooting and optimisation of LTE networks using TEMS



GSM and UMTS air interface is recommended



1. LTE network architecture

  • LTE Network Architecture
  • E-UTRAN radio interface protocol stack
  • EPC interfaces
  • Bearer service architecture
  • Bearer level QoS
  • UE category types


2. LTE air interface principles

  • LTE Physical Layer
  • Subframe structure & CP length
  • Physical Resource Blocks
  • Downlink & Uplink Physical Channels
  • Reference signals
  • Multiple Antenna Systems
  • LTE Transmission Modes


3. LTE basic operations & procedures

  • LTE Initial Access
  • LTE Initial attach process involving EPC
  • Cell search flow diagram
  • Random Access (RA) Procedure
  • RRC Connection establishment
  • EPS bearer
  • LTE RRC States
  • CQI Adaptation


4. Voice services in LTE: VoLTE, CSFB & SRVCC

  • IMS network architecture
  • IMS initial registration
  • IMS session establishment
  • The reason for CSFB
  • CSFB Architecture
  • CSFB Mobility Method
  • CSFB Voice Call Signalling
  • Single Radio Voice Call Continuity (SRVCC)
  • Comparison of IMS, SRVCC & CSFB
  • SMS over SGs
  • Mobile SMS signalling


5. Radio coverage

  • Preparations for RF optimisation
  • Physical Channel ID Review
  • Serving cell PCI verification
  • Uplink Interference
  • Radio optimisation actions
  • LTE RF optimisation objectives
  • RSRP, RSRQ & SINR definitions
  • Relationship between SINR and Throughput
  • Radio KPIs
  • Resolving poor coverage problems
  • Dominance improvement actions
  • Overshooting cell
  • Radio optimisation actions trade-off
  • Uplink/downlink power path imbalance
  • Resolving SINR (interference) problems
  • Neighbouring lists & ANR functionality


6. Accessibility

  • Idle mode (cell selection and reselection) procedures
  • LTE initial access related procedures
  • VoLTE KPI definitions for accessibility
  • Troubleshooting


7. Retainability

  • When radio link is out-of-synch?
  • RRC Connection Reestablishment
  • Radio link failure at eNB
  • LTE handover principles
  • event A3: Best-cell-triggered handover
  • Optimisation rules for A3 parameters
  • event A2: Coverage-triggered handover
  • X2-based Inter E-NodeB Handover
  • ANR functionality & mobility
  • Interworking network architecture
  • Idle mode LTE-UMTS-GSM selection/reselection
  • Inter-RAT Handover
  • VoLTE KPI definitions for retainability
  • Troubleshooting


8. Integrity

  • LTE User Plane Protocol Stack
  • Downlink Throughput Troubleshooting
  • CQI investigation
  • MIMO usage
  • RF conditions
  • Backhaul bottleneck
  • Uplink Throughput Troubleshooting
  • Power headroom analysis
  • Troubleshooting


*Several hands-on exercises based on TEMS Discovery will be presented covering all discussed LTE technology topics.

LTE Principle & VoLTE

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