Available spectrum for mobile communication is limited and the ever-growing mobile broadband traffic demand cannot be served by enhancing existing LTE macro networks only (see course LTE Advanced). LTE small cell deployment is thus seen as an essential mean to provide high capacity for very densely populated outdoor and indoor areas. This training course provides the technology background when deploying LTE small cells. All small cell related functions defined in the very latest 3GPP releases are presented including eICIC, CoMP, Carrier Aggregation, Dual Connectivity, Dynamic TDD, License Assisted Access (LTE-Unlicensed) and LTE / WLAN Radio Level Aggregation and Integration.

Training Schedule

  • Duration: 3 Days for 1.430,00 EUR 
  • Public Training: May 10-12, 2016 in Oberpfaffenhofen 
  • Download Flyer 


After a short review of LTE and LTE-Advanced, small cell scenarios and deployment options will be discussed as well as different architectures to realize such heterogeneous networks. Advanced technologies such as Enhanced Inter-Cell Interference Coordination (eICIC), Inter-site Carrier Aggregation, Coordinated Multi-point Transmission (CoMP), Enhanced Interference Management and Traffic Adaption (eIMTA) or Dual Connectivity also depend on the architecture and the level of coordination between macro and small cells. Novel architectures include Cloud RANs with CPRI based fronthaul, networks with central Radio Resource Management and/or central Control Plane termination using Dual Connectivity. Yet another aspect of the training course are Home Base Stations (Femto-cells) and Self-Organizing Networks functions that are beneficial for small cell operation. For dense and ultra-dense small cell deployments with inherent large traffic variations, on/off switching becomes more important for energy saving and interference reduction.

Day 1 – Introduction to LTE-A, Small Cells and HetNets

LTE Review Physical Layer and Q&A
  • OFDM Radio Access, Scheduling, Link Adaptation, Adaptive Coding Modulation
  • HARQ, MIMO, Reference Symbols, Up- and Downlink Frame Structures 
LTE Review Protocol/Architecture and Q&A
  • Evolved Packet Core Architecture
  • Control Plane and User Plane Architecture
  • Random Access, RRC Connection Setup, Initial Attach, Handover 
Key Features of LTE Advanced
  • LTE-A Requirements and Standardisation
  • New Spectrum Allocation and Future of Carrier Aggregation, MIMO and SON
  • Technology and Release Overview
Introduction Future Small Cells
  • Small Cell Types (Micro-, Pico- and Femto eNBs)
  • Deployment Options, Frequency Usage
  • CPRI based C-RAN and Central RRM C-RAN
  • Multi-Connectivity
HetNet Co-Channel Deployment
  • Uplink-, Downlink Interference Issues
  • Cell Selection and Cell Range Expansion (CRE)
  • Inter-cell Interference Coordination
  • PDCCH Outage, Robustness Optimization

Day 2 – LTE-A Small Cell Technology Enhancements

Enhanced Inter-cell Interference Coordination with Almost Blank Subframes
  • RRC and CSI Measurement Restrictionsm and MBSFN Subframe Configuration
  • Further Enhanced ICIC and UE CRS Interference Canceller
HetNet Performance and Mobility, Impact of CRE and ABS on Performance
  • Mobility Issues and Handover Performance, Simulation Results
Multi-site Carrier Aggregation
  • Interference Coordination using Carrier Aggregation
  • Downlink Time Alignment and Uplink with Multiple Timing Advanced 
  • Mobility for Carrier Activation/Deactivation
  • Enhanced PDCCH Channel
General Small Cell Enhancements
  • 256QAM for Isolated Cells, Small Cell Detection, Discovery Reference Symbols
  • Small Cell On/Off Switching, Inter-frequency measurements
Coordinated Multipoint Transmission
  • CoMP Architectures and Intra- and Intercell Interference
  • Coordinated Scheduling/Beamforming, Joint Transmission
  • Architecture Issues, CoMP Resource Management, CoMP Signalling Procedures, Uplink Feedback Information

Day 3 – LTE-A Pro Small Cell Technology Enhancements

Dual Connectivity for Future HetNets
  • Logical Architecture and Split of Functionality
  • Primary Serving Cell, Control and User Plane Architecture
  • Bearer Types, Scheduling and UE Capability Handling
  • Mobility Procedures
LTE-Unlicensed / License Assisted Access
  • Spectrum Licensing Models, 5GHz LAA Spectrum, Channel Access Schemes
  • Clear Channel Assignment, Frame Structure, Multi-Carrier Operation and Selection
  • RRM Procedures, Scheduling and MAC Operation


Dynamic TDD Subframe Configuration
  • Introduction of TDD HetNets
  • Principles LTE Enhanced Interference Management and Traffic Adaptation


LTE / WLAN Aggregation and Interworking
  • Logical Architecture and Bearer Types
  • Xw Interface between eNB and WLAN Termination
  • Mobility and Security Issues
Future LTE based Wireless Systems
  • Proximity Service Enabler and Future LTE Public Safety Systems
  • LTE based Machine Type Communication 
  • Narrowband Internet of Things
  • LTE based Vehicular Communication and Low Latency LTE


Outlook to 5G Radio Access Networks
  • Industry Trends and Schedule
  • Status in 3GPP Standardisation
  • Key Concepts of 5G