User's Manual

Chapter 6 WiMAX

BM2022 Users Guide

 PEM (Base-64) encoded PKCS#7: This Privacy Enhanced Mail (PEM) format uses 64 ASCII

characters to convert a binary PKCS#7 certificate into a printable form.

CINR

Carrier to Interference-plus-Noise Ratio (CINR) measures the effectiveness of a wireless signal and

plays an important role in allowing the BM2022 to decode signal burst. If a burst has a high signal

strength and a high interference-plus-noise ratio, it can use Digital Signal Processing (DSP) to

decode it; if the signal strength is lower, it can switch to an alternate burst profile.

RSSI

Received Signal Strength Indicator (RSSI) measures the relative strength of a given wireless signal.

This is important in determining if a signal is below the Clear-To-Send (CTS) threshold. If it is below

the arbitrarily specified threshold, then BM2022 is free to transmit any data packets.

EAP Authentication

EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE

802.1x transport mechanism in order to support multiple types of user authentication. By using EAP

to interact with an EAP-compatible RADIUS server, an access point helps a wireless station and a

RADIUS server perform authentication.

The BM2022 supports EAP-TLS and EAP-TTLS (at the time of writing, TTLS is not available in

Windows Vista). For EAP-TLS authentication type, you must first have a wired connection to the

network and obtain the certificate(s) from a certificate authority (CA). Certificates (also called

digital IDs) can be used to authenticate users and a CA issues certificates and guarantees the

identity of each certificate owner.

6.2 Connection Settings

This screen allows you to configure how the BM2022 connects to the base stations on the WiMAX

network.