User's Manual

AirSynergy 2000 Installation Guide
Page 46 Commercial in Confidence UGD-D01001 Rev Azl
9 Appendix B - Glossary of Terms - Acronym, Abbreviations &
Definitions
Table 13 - Glossary of Terms
Short
Long
3GPP
3rd Generation Partnership Project, responsible for LTE
ABS
Almost Blank Subframes
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