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LTE Interworking

Training Course Outline

Course Duration:
2 Days

Training Course Description:
This course explores the standardisation work that has been achieved by 3GPP towards making the new core network for LTE - the SAE (Systems Architecture Evolution), the core network for all wireless access networks. This common core allows both vertical and horizontal handovers (handovers between wireless technologies) during a communication session or call.

The end goal would be a converged mobile network where a user’s device hands over from technology to technology as the user moves, the terminal selecting the best network in terms of cost and performance for the current application.

The specifications are aimed at WLAN interworking but may be extensible to other technologies. In particular, the WiMAX Forum have looked at this area from their viewpoint and have specified a strategy and interfaces to the 3GPP core for WiMAX.

This course includes the following modules:

Overview of Interworking
  • Requirements for WLAN Direct IP Access
  • Impact on 3GPP Components

Principles for Interworking

  • Access Control
  • User identity
  • Network Advertisement
  • IP Connectivity
  • Routing and Policy Enforcement

Interworking Architecture

  • Reference Model
  • Network Elements
  • Reference Points
  • Protocols


  • Selection
  • Subscriber Profile Update
  • Disconection
  • Tunnel Establishment and Disconnection

Interworking Security

  • Requirements: Roaming and Non-Roaming Scenarios
  • Security Features
  • Security Mechanisms

Wi-Fi Alliance Work on Interworking

  • WMM™ – Wi-Fi® Multimedia
  • IEEE 802.11e Features

Mobile WiMAX and SAE Interworking

  • Coupling Scenarios
    Integration with 3GPP Model
    Reference Points


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