Figure 6 Wimax: Mobile Station; Figure 7 Wimax: Multiple Mobile Stations - ZyXEL Communications MAX-706 User Manual

Chapter 3 WiMAX Utility

Figure 6 WiMax: Mobile Station

Multiple Mobile Stations
WiMAX technology uses radio signals (around 2 to 10 GHz) to connect subscriber stations
and mobile stations to local base stations. Numerous subscriber stations and mobile stations
connect to the network through a single base station (BS), as in the following figure.

Figure 7 WiMAX: Multiple Mobile Stations

A base station's coverage area can extend over many hundreds of meters, even under poor
conditions. A base station provides network access to subscriber stations and mobile stations,
and communicates with other base stations.
The radio frequency and bandwidth of the link between the MAX-706 and the base station are
controlled by the base station. The MAX-706 follows the base station's configuration.
Authentication
When authenticating a user, the base station uses a third-party RADIUS or Diameter server
known as an AAA (Authentication, Authorization and Accounting) server to authenticate the
mobile or subscriber stations.
WiMAX uses PKM (Privacy Key Management) for authentication between the mobile or
subscriber station and the base station, and supports EAP (Extensible Authentication Protocol)
between the mobile or subscriber station, the base station, and the AAA server.
The following figure shows a base station using an AAA server to authenticate mobile station
MS, allowing it to access the Internet.
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BS1
MS1
BS2
MAX-706 User's Guide