Installation Guide

AirSpeed 1000 Installation Guide
DUG01289 Airspan Commercial and Internal Use 30
C Abbreviations
Table 10: ABBREVIATIONS & DEFINITIONS
Term
Expansion
3GPP
3rd Generation Partnership Project, responsible for LTE
AWGN
Additive White Gaussian Noise is a channel model in which the only impairment to
communication is a linear addition of white noise with a constant spectral density
and a Gaussian distribution of amplitude.
BER
Bit Error Rate
dB
Decibel. A logarithmic unit used to describe a ratio (such as power ratio in radio
telecommunications)
dBm
An abbreviation for the power ratio in decibels (dB) of the measured power
referenced to one milliwatt (mW). It is used as a convenient measure of absolute
power because of its capability to express both very large and very small values in
a short form
eNodeB
Evolved Node B, is the element in E-UTRAN of LTE
ESP
Encapsulating Security Payloads (ESP) provide confidentiality, data-origin
authentication, connectionless integrity, an anti-replay service (a form of partial
sequence integrity), and limited traffic-flow confidentiality
E-UTRAN
Evolved Universal Terrestrial Radio Access Network, is the air interface of 3GPP's
Long Term Evolution
FDD
Frequency-Division Duplexing. A transceiver mode where the transmitter and
receiver operate at different carrier frequencies
GNSS
Global Navigation Satellite System is a term used to describe a satellite navigation
system with global coverage. There are currently two fully operational GNSSs –
the US GPS and the Russian GLONASS.
HPBW
Half Power Beam Width is the angular separation in an antenna, in which the
magnitude of the radiation pattern decreases by 50% (or -3 dB) from the peak of
the main beam
IPSec
Internet Protocol Security is a protocol suite for securing Internet Protocol (IP)
communications by authenticating and encrypting each IP packet of a
communication session
LED
Light Emitting Diode
LTE
Long Term Evolution
MAC
Medium Access Controller – responsible for several functions such Scheduling,
Packet (De)Multiplexing, etc…
MME
Mobility Management Entity is the key control-node for the LTE access-network. It
is responsible, among other things for idle mode UE tracking and paging procedure
including retransmissions