Wi-Fi Offload

For mobile service providers, Wi-Fi Offload is a useful technique for reducing the loading on the PS mobile network. Several implementation options exist and as such, this course initially explores those options before focusing on Untrusted Wi-Fi Offload. Fundamental concepts will be explored, including Wi-Fi operation and Wi-Fi security, along with the operation of the network in support of the offload process.

This course will contain the following sections:


  • Duration: 1 hour
  • Topic areas covered include
  • Key Features and Drivers
  • Wi-Fi Footprint, Wi-Fi Selection, Security, PCC
  • Network Infrastructure Requirements
  • Concepts of Operation
  • Seamless and non-seamless traffic offload
  • Relevant Standards (3GPP and IEEE)
  • White-Fi
  • Wi-Fi Direct
  • Handover Considerations
  • Clientless (S2a based) and Client Based (S2c based)
  • Duration: 1 hour
  • Topic areas covered include
  • Wi-Fi Architecture
  • Station, Access Point and Distribution System
  • Wireless Medium
  • 802.11a, 802.11b, 802.11g, 802.11n and 802.11ac
  • Wi-Fi Network Configurations
  • BSS, ESS, Pt-to-Pt and Mesh
  • White-Fi
  • Wi-Fi Direct
  • Handover Considerations
  • Clientless (S2a based) and Client Based (S2c based)
  • Duration: 1 hour
  • Topic areas covered include
  • Contention Resolution and Framing
  • CSMA/CA
  • SIFS, DIFS and EIFS
  • MAC Frames
  • Wi-Fi Discovery
  • Beacon and Probe Request/Response
  • Wi-Fi Authentication
  • Open System and Shared Key
  • Wi-Fi Association
  • Association and Re-association
  • Duration: 2 hours
  • Topic areas covered include
  • IEEE 802.11u Interworking with External Networks
  • IFOM (IP Flow Mobility) and MAPCON (Multiple Access PDN Connectivity)
  • Access Network Discovery Selection Function
  • Inter system mobility policy
  • Access network discovery information
  • Inter-system routing policy
  • PCC integration considerations
  • Data Flow and QoS Aspects
  • Handover Considerations
  • Clientless (S2a based) and Client Based (S2c based)
  • Duration: 1 hour
  • Topic areas covered include
  • Untrusted and Trusted Access Networks
  • Extensible Authentication Protocol
  • EAP-SIM
  • IEEE 802.1X Authentication
  • IEEE 802.11i RF Encryption
  • DTLS
  • Integration with AAA in the EPC
  • Interfaces: Wp, SWn, S2a, S2b, Wi, SWm
  • ePDG
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Duration 1 day
CPD Learning Credits 6

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