DICTIONARY
Common terms & acronyms used in wireless industry
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ICI- Intercerrier Interference -
Channel variations during an orthogonal frequency division
multiplexing (OFDM) sequence caused by carrier frequency
offsets, channel time variation, and sampling frequency offsets.
ICI degrades the performance of OFDM transmissions.
iDAS - Indoor Distributed Antenna System -
DAS deployed in an indoor setting
IFBW - Intermediate Frequency Bandwidth -
The bandwidth of the frequency that a carrier wave shifts to as
an intermediate step in transmission or reception.
IFF - Indirect Far Field -
A test method approved by 3GPP to overcome path loss and
excessive far-field distance involved in 5G cellular communications.
IMEI - International Mobile Equipment Identity -
A number that uniquely identifies 3GPP mobile devices. Used
by the telecommunications network to identify valid devices in
case of loss or theft.
IMSI - International Mobile Subscriber Identity -
A unique number that identifies the subscriber identification
module (SIM) card present in the device belonging to a subscriber.
IMT-2020 – International Mobile Telecommunications-2020 -
A standard that sets the requirements for 5G networks, devices,
and services. IMT-2020 was developed by the International
Telecommunications Union (ITU) Radiocommunication Sector
in 2015. The ITU is a United Nations agency responsible for
information and communications technologies.
ISI - Intersymbol Interference -
Signal distortion caused when one or more symbols interfere
with other symbols. Caused by amplitude and phase dispersion
in the channel due to multipath propagation or non-linear
frequency response.
ITU - International Telecommunication Union -
A United Nations agency responsible for information and
communications technologies. The ITU — formerly called the
International Telegraph Union — is the oldest global international
organization, established in 1865. The ITU created the standard
that sets forth the requirements for 5G networks, devices, and
services known as IMT-2020.
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