User Manual

Glossary
4Motion 912 System Manual
ASN Access Service Network. An ASN is defined as a complete set of network functions
needed to provide radio access to a WiMAX subscriber. An ASN is comprised of
network elements such as one or more Base Stations (BS) and one or more ASN
gateways (ASN-GW). An ASN may be shared by more than one Connectivity
Service Network (CSN).
ASN-GW Access Service Network Gateway. The ASN-GW is a network entity that acts as a
gateway between the ASN and CSN. The ASN functions hosted in an ASN-GW may
be viewed as consisting of two groups - the decision point (DP) that provides control
functionality and enforcement point (EP) that provides bearer transport.
ASP Application Service Provider. A third-party entity that manages and distributes
software-based services and solutions to customers across a wide area network
from a central data center.
AU Access Unit
AVU Air Ventilation Unit
AWG An electronics industry acronym for American Wire Gauge. AWG is a measure of the
thickness of copper, aluminum and other wiring.
AWGN Additive White Gaussian Noise. Also known as WGN. Constant spectral energy at
all frequencies with a probability histogram that follows a Gaussian bell shaped
curve.
BE Best Effort. Service supporting applications with no strict rate or delay requirements.
BS Base Station. The WiMAX BS is an entity that implements the WiMAX MAC and PHY
in compliance with the IEEE 802.16e standard. A BS operates on one frequency
assignment, and incorporates scheduler functions for uplink and downlink resources.
BTS Base Transceiver Station. A wireless network element that provides the radio
interface of the network. The BTS comprises the radio transmission and reception
devices, and also manages the signal processing related to the air interface.
BW Bandwidth
BWA Broadband Wireless Access
CALEA The Communications Assistance for Law Enforcement Act is a United States
wiretapping law passed in 1994. In its own words, the purpose of CALEA is: To
amend title 18, United States Code, to make clear a telecommunications carrier's
duty to cooperate in the interception of communications for Law Enforcement
purposes, and for other purposes. CALEA was intended to preserve the ability of law
enforcement agencies to conduct electronic surveillance by requiring that
telecommunications carriers and manufacturers of telecommunications equipment
modify and design their equipment, facilities, and services to ensure that they have
the necessary surveillance capabilities.