WiMAX System Engineering (2 days or 12 hours)
As Service Providers from both the fixed and mobile environment seek to enhance their broadband offering, WiMAX is being adopted across the globe as a flexible, efficient and scalable option. Through initiatives from the IEEE and WiMAX Forum, WiMAX technology is now mature enough to be deployed as a fixed line replacement technology or alternatively, as a platform to deliver 4G services to mobile customers. This course seeks to provide a comprehensive description of current WiMAX networks, defining the overall architecture, operation and procedures associated with this cutting edge technology.
Who Should Attend
Technical Staff who will be involved in the development and deployment of WiMAX networking technology. Product Managers and associated Support Staff who need a detailed technical insight into WiMAX.
Pre - Learning
Pre-Learning is provided to prime those attending the instructor led phase. Each lesson is based on an interactive online format and should take about 30 minutes to complete. The pre-Learning lessons are:
- Test of Understanding - Try the online check to see how much you know.
- Introduction to WiMAX.
- WiMAX Network Architecture.
- OFDM Principles.
- IP Convergence.
Course Outline
Divided into 10 sections, the topics covered will include:
Section 1: WiMAX Players and Drivers (1 hour)
- What is WiMAX?
- Why WiMAX? - performance, flexibility, security, QOS, Mobility.
- TWiMAX Standardization - IEEE, WiMAX Forum.
- Air Interface Profiles.
- Network Releases.
- WiMAX Interoperability - Cellular, IMS.
Section 2: WiMAX Architectures (1.5 hours)
- WiMAX Network Reference Model - Terminal, Access, Core.
- Reference Points.
- Air Interface Reference Points Architecture- R1 Control and User Plane.
- ASN Fixed Portion Reference Point Architecture - Control and User Plane.
- Mobile / Subscriber Station - Session Management, Radio Resource, AAA, Mobility Management.
- ASN Profiles and Key Functionality.
- CSN Key Functionality.
Section 3: The 802.16 Physical Layers (1 hour)
- Why OFDM and OFDMA? - performance characteristics, radio spectrum issues (unlicensed and licensed).
- WiMAX Physical Layer Configurations.
- WiMAX Physical System Profiles - fixed and mobile.
- OFDM Principles - FFT, channels and sub-carriers.
- WiMAX Frame Formats.
- WiMAX OFDMA Frame Structure.
Section 4: 802.16 Medium Access Control (1 hour)
- MAC Layer Functionality.
- MAC Formatting - generic MAC header, subheaders, payload, signalling headers.
- MAC Connections - Broadcast, Multicast Management and Transport CIDs.
- Identities - MS ID, BS ID.
- Feedback.
Section 5: WiMAX Initial Procedures (2 hours)
- Network Synchronization - downlink preamble, downlink broadcast, ranging etc.
- Network Entry.
- Basic Capability Negotiation.
- Authorization and Key Exchange.
- Registration.
- Initial Service Flow.
- IP Connectivity Establishment.
Section 6: End to End Security (1 hour)
- Security Principles - Confidentiality, Integrity, Authentication.
- WiMAX Security Architecture - AAA, NAS, Supplicant.
- PKMv1 and PKMv2 - user and device authentication, MAC messages, Authentication Relay Protocol.
- RADIUS.
- EAP and EAP-SIM.
- Certificate Based Security.
Section 7: WiMAX Service Flows (1 hour)
- Service Flow Creation and Management - authentication, management, policy, states.
- Data Path Connection - Radio, ASN connection, ASN-CSN connection.
- Service Flow Admission.
- Service Flow Activation.
Section 8: WiMAX Transport and QoS (1.5 hours)
- QoS in Packet Switched Networks.
- Packet Classification and DiffServ - IPV4, IPv6.
- DiffServ in WiMAX.
- Bearer Managers.
- Air Interface Data Scheduling.
- End to End QoS Techniques.
Section 9: Connecting Using WiMAX (1 hour)
- Voice and Data Service Architecture.
- Case Study 1 - Web Browsing.
- SIP Capabilities.
- SIP Identities and Functional Elements - AoR, Proxy, Registrar, Redirect.
- Methods - Register, Invite, Ack, Cancel, Bye, Options.
- SIP Registration, Session Establishment, and Session Termination.
- Case Study 2 - Voice Services.
- Case Study 3 - Video Streaming.
- WiMAX Accounting - online and offline accounting using RADIUS and Diameter.
Section 10: WiMAX Mobility (1 hour)
- Idle Mode and Normal Mode.
- Fractional Frequency Reuse.
- Mobility Procedures - Idle Mode, Cell Selection, Location Updating, Paging.
- ASN Anchored Mobility - handover types and triggers.
- CSN Anchored Mobility - Mobile IP.
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