User's Manual

AirHarmony-1000 Installation Guide
UGD-D01006 Airspan Commercial and Internal Use 54
C Abbreviations
Term
Expansion
3GPP
3rd Generation Partnership Project, responsible for LTE
ABS
Almost Blank Subframe
ACS
Adjacent Channel Selectivity is a measurement of a receiver's ability
to process a desired signal while rejecting a strong signal in an
adjacent frequency channel. ACS is defined as the ratio of the receiver
filter attenuation on the assigned channel frequency to the receiver
filter attenuation on the adjacent channel frequency
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
CN
Core Network
CP
Cyclic Prefix
CTC
Convolution Turbo Code is a high-performance forward error
correction (FEC) code
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 UMTS Terrestrial Radio Access Network, is the air interface
of 3GPP's Long Term Evolution
EVM/RCE
The Error Vector Magnitude or EVM (sometimes also called Receive
Constellation Error or RCE) is a measure used to quantify the
performance of a digital radio transmitter or receiver. It is measured in
dB or percentage (%) – the lower the better
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.
GTP-U
GPRS Tunneling Protocol for User data is a relatively simple IP based
tunneling protocol which permits many tunnels between each set of
end points
HPBW
Half Power BandWidth 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
ICS
In-channel selectivity is a measure of the receiver’s ability to receive a
wanted signal at its assigned Resource Block locations in the
presence of an interfering signal
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