AWB OD200-IDU, Operator'S Manual

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Glossary
Glossary-4
Receive Signal Strength Indicator (RSSI)
A measurement of the strength of a received wireless signal. The higher the RSSI
value, the stronger the received signal from the antenna.
Roaming
The process where a WiMAX subscriber can move onto another operator’s network
while maintaining a continuous connection.
SAU (Subscriber Unit Alignment Unit)
An optional device that can be connected to the SAU port on the ODU to provide
status LED indications during antenna alignment.
Scalable Orthogonal Frequency Division Multiple Access (SOFDMA)
The air interface defined for mobile WiMAX. SOFDMA is a multiple access method
that allows simultaneous transmissions to and from several users, employing a
subchannel structure that scales with bandwidth.
Service Provider
See Internet Service Provider .
Service Set Identifier (SSID)
A name that is sent in packets over a Wi-Fi network, which functions as a password
for clients connecting to the network. The SSID differentiates one Wi-Fi network
from another.
Simple Network Time Protocol (SNTP)
SNTP allows a device to set its internal clock based on periodic updates from a
Network Time Protocol (NTP) server. Updates can be requested from a specific NTP
server, or can be received via broadcasts sent by NTP servers.
Subscriber Identity Module (SIM)
A standard for a small removable integrated circuit card that securely stores
information used to identify a mobile wireless subscriber.
Subscriber Station
A general term for a customer’s WIMAX terminal equipment that provides
connectivity with a base station.
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP as the
network layer protocol.