Introduction to Wi-Fi Training in Hong Kong

Over the past twenty years, Wi-Fi has played an ever more critical role in the way we communicate; be that surfing the web, sending emails, messaging or making calls. This introduction course explores how Wi-Fi actually works in terms of the latest 802.11n (Wi-Fi 4), 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6) standards, including the associated certification programs from the Wi-Fi Alliance. The course then moves on to discuss several methods of determining a device’s location, before addressing Wi-Fi Security. Finally, Wi-Fi Calling is explored in terms of supporting seamless connectivity between Wi-Fi and the 4G cellular networks.

• Topic areas covered include:
• What is Wi-Fi?
• The IEEE 802.11 Standards:
• 802.11a/b/g/n/ac/ax.
• 802.11ad/ah.
• The Wi-Fi Alliance Programmes.
• Wi-Fi Network Architecture:
• The Building Blocks of a Wi-Fi Network.
• Basic Service Sets and Extended Service Sets.
• Using Mesh Technology to Extend Coverage.
• Finding and Joining a Wi-Fi Network:
• Wi-Fi Frames.
• Wi-Fi Addressing.
• Finding a Wi-Fi Network:
• Scanning for Wi-Fi.
• Probing for Wi-Fi.
• Joining a Wi-Fi Network:
• Authentication.
• Association.
• Sending and Receiving Data over Wi-Fi:
• OFDM and OFDMA.
• Beam Steering and MU-MIMO.
• Modulation and Increasing Data Throughput.
• Uplink and Downlink Data Transfer:
• 802.11a/b/g/n.
• 802.11ac/ax.
• Wi-Fi Location Services:
• Tracking a Wi-Fi Station:
• Randomly Assigned MAC Addresses.
• Wi-Fi Positioning System.
• Wi-Fi Location.
• Wi-Fi Security:
• Wi-Fi Security Principles.
• Wi-Fi Protected Access 1, 2 and 3.
• WPA3 and Wi-Fi Easy Connect.
• Wi-Fi Calling and Seamless Mobility:
• 4G and Wi-Fi Calling.
• Wi-Fi Passpoint and Hotspot 2.0.